Instructions

Instructions are syntactically distinguished into plain and structured instructions.

\[\begin{split}\begin{array}{llclll} \def\mathdef2805#1{{}}\mathdef2805{instruction} & \href{../text/instructions.html#text-instr}{\mathtt{instr}}_I &::=& \mathit{in}{:}\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &\Rightarrow& \mathit{in} \\ &&|& \mathit{in}{:}\href{../text/instructions.html#text-blockinstr}{\mathtt{blockinstr}}_I &\Rightarrow& \mathit{in} \\ \end{array}\end{split}\]

In addition, as a syntactic abbreviation, instructions can be written as S-expressions in folded form, to group them visually.

Labels

Structured control instructions can be annotated with a symbolic label identifier. They are the only symbolic identifiers that can be bound locally in an instruction sequence. The following grammar handles the corresponding update to the identifier context by composing the context with an additional label entry.

\[\begin{split}\begin{array}{llcllll} \def\mathdef2805#1{{}}\mathdef2805{label} & \href{../text/instructions.html#text-label}{\mathtt{label}}_I &::=& v{:}\href{../text/values.html#text-id}{\mathtt{id}} &\Rightarrow& v, \{\href{../text/conventions.html#text-context}{\mathsf{labels}}~v\} \href{../syntax/conventions.html#notation-compose}{\oplus} I & (\mathrel{\mbox{if}} v \notin I.\href{../text/conventions.html#text-context}{\mathsf{labels}}) \\ &&|& v{:}\href{../text/values.html#text-id}{\mathtt{id}} &\Rightarrow& v, \{\href{../text/conventions.html#text-context}{\mathsf{labels}}~v\} \href{../syntax/conventions.html#notation-compose}{\oplus} (I \href{../syntax/conventions.html#notation-replace}{\mathrel{\mbox{with}}} \href{../text/conventions.html#text-context}{\mathsf{labels}}[i] = \epsilon) & (\mathrel{\mbox{if}} I.\href{../text/conventions.html#text-context}{\mathsf{labels}}[i] = v) \\ &&|& \epsilon &\Rightarrow& \epsilon, \{\href{../text/conventions.html#text-context}{\mathsf{labels}}~(\epsilon)\} \href{../syntax/conventions.html#notation-compose}{\oplus} I \\ \end{array}\end{split}\]

Note

The new label entry is inserted at the beginning of the label list in the identifier context. This effectively shifts all existing labels up by one, mirroring the fact that control instructions are indexed relatively not absolutely.

If a label with the same name already exists, then it is shadowed and the earlier label becomes inaccessible.

Control Instructions

Structured control instructions can bind an optional symbolic label identifier. The same label identifier may optionally be repeated after the corresponding \(\mathtt{end}\) or \(\mathtt{else}\) keywords, to indicate the matching delimiters.

Their block type is given as a type use, analogous to the type of functions. However, the special case of a type use that is syntactically empty or consists of only a single result is not regarded as an abbreviation for an inline function type, but is parsed directly into an optional value type.

\[\begin{split}\begin{array}{llclll} \def\mathdef2805#1{{}}\mathdef2805{block type} & \href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}_I & \begin{array}[t]{@{}c@{}} ::= \\ | \\ \end{array} & \begin{array}[t]{@{}lcll@{}} (t{:}\href{../text/types.html#text-functype}{\mathtt{result}}_I)^? &\Rightarrow& t^? \\ x,I'{:}\href{../text/modules.html#text-typeuse}{\mathtt{typeuse}}_I &\Rightarrow& x & (\mathrel{\mbox{if}} I' = \{\href{../text/conventions.html#text-context}{\mathsf{locals}}~(\epsilon)^\ast\}) \\ \end{array} \\ \def\mathdef2805#1{{}}\mathdef2805{block instruction} & \href{../text/instructions.html#text-blockinstr}{\mathtt{blockinstr}}_I &::=& \def\mathdef2849#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2849{block}~~(v^?,I'){:}\href{../text/instructions.html#text-label}{\mathtt{label}}_I~~\mathit{bt}{:}\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}_I~~(\mathit{in}{:}\href{../text/instructions.html#text-instr}{\mathtt{instr}}_{I'})^\ast~~\def\mathdef2850#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2850{end}~~{v'}^?{:}\href{../text/values.html#text-id}{\mathtt{id}}^? \\ &&&\qquad \Rightarrow\quad \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{block}}~\mathit{bt}~\mathit{in}^\ast~\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}} \qquad\quad~~ (\mathrel{\mbox{if}} {v'}^? = \epsilon \vee {v'}^? = v^?) \\ &&|& \def\mathdef2851#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2851{loop}~~(v^?,I'){:}\href{../text/instructions.html#text-label}{\mathtt{label}}_I~~\mathit{bt}{:}\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}_I~~(\mathit{in}{:}\href{../text/instructions.html#text-instr}{\mathtt{instr}}_{I'})^\ast~~\def\mathdef2852#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2852{end}~~{v'}^?{:}\href{../text/values.html#text-id}{\mathtt{id}}^? \\ &&&\qquad \Rightarrow\quad \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{loop}}~\mathit{bt}~\mathit{in}^\ast~\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}} \qquad\qquad (\mathrel{\mbox{if}} {v'}^? = \epsilon \vee {v'}^? = v^?) \\ &&|& \def\mathdef2853#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2853{if}~~(v^?,I'){:}\href{../text/instructions.html#text-label}{\mathtt{label}}_I~~\mathit{bt}{:}\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}_I~~(\mathit{in}_1{:}\href{../text/instructions.html#text-instr}{\mathtt{instr}}_{I'})^\ast~~ \def\mathdef2854#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2854{else}~~v_1^?{:}\href{../text/values.html#text-id}{\mathtt{id}}_1^?~~(\mathit{in}_2{:}\href{../text/instructions.html#text-instr}{\mathtt{instr}}_{I'})^\ast~~\def\mathdef2855#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2855{end}~~v_2^?{:}\href{../text/values.html#text-id}{\mathtt{id}}_2^? \\ &&&\qquad \Rightarrow\quad \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{if}}~\mathit{bt}~\mathit{in}_1^\ast~\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{else}}~\mathit{in}_2^\ast~\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}} \qquad (\mathrel{\mbox{if}} v_1^? = \epsilon \vee v_1^? = v^?, v_2^? = \epsilon \vee v_2^? = v^?) \\ &&|& \def\mathdef2856#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2856{try\_table}~~I'{:}\href{../text/instructions.html#text-label}{\mathtt{label}}_I~~\mathit{bt}{:}\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}~~(c{:}\href{../text/instructions.html#text-catch}{\mathtt{catch}}_I)^\ast~~(\mathit{in}{:}\href{../text/instructions.html#text-instr}{\mathtt{instr}}_{I'})^\ast~~\def\mathdef2857#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2857{end}~~\href{../text/values.html#text-id}{\mathtt{id}}^? \\ &&&\qquad \Rightarrow\quad \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{try\_table}}~\mathit{bt}~c^\ast~\mathit{in}^\ast~~\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}} \qquad\qquad (\mathrel{\mbox{if}} \href{../text/values.html#text-id}{\mathtt{id}}^? = \epsilon \vee \href{../text/values.html#text-id}{\mathtt{id}}^? = \href{../text/instructions.html#text-label}{\mathtt{label}}) \\ \def\mathdef2805#1{{}}\mathdef2805{catch clause} & \href{../text/instructions.html#text-catch}{\mathtt{catch}}_I & \begin{array}[t]{@{}c@{}} ::= \\ | \\ | \\ | \\ \end{array} & \begin{array}[t]{@{}lcll@{}} \def\mathdef2858#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2858{(}~\def\mathdef2859#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2859{catch}~~x{:}\href{../text/modules.html#text-tagidx}{\mathtt{tagidx}}_I~~l{:}\href{../text/modules.html#text-labelidx}{\mathtt{labelidx}}_I~\def\mathdef2860#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2860{)} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{catch}}~x~l \\ \def\mathdef2861#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2861{(}~\def\mathdef2862#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2862{catch\_ref}~~x{:}\href{../text/modules.html#text-tagidx}{\mathtt{tagidx}}_I~~l{:}\href{../text/modules.html#text-labelidx}{\mathtt{labelidx}}_I~\def\mathdef2863#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2863{)} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{catch\_ref}}~x~l \\ \def\mathdef2864#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2864{(}~\def\mathdef2865#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2865{catch\_all}~~l{:}\href{../text/modules.html#text-labelidx}{\mathtt{labelidx}}_I~\def\mathdef2866#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2866{)} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{catch\_all}}~l \\ \def\mathdef2867#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2867{(}~\def\mathdef2868#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2868{catch\_all\_ref}~~l{:}\href{../text/modules.html#text-labelidx}{\mathtt{labelidx}}_I~\def\mathdef2869#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2869{)} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{catch\_all\_ref}}~l \\ \end{array} \\ \end{array}\end{split}\]

Note

The side condition stating that the identifier context \(I'\) must only contain unnamed entries in the rule for \(\href{../text/modules.html#text-typeuse}{\mathtt{typeuse}}\) block types enforces that no identifier can be bound in any \(\href{../text/types.html#text-functype}{\mathtt{param}}\) declaration for a block type.

All other control instruction are represented verbatim.

\[\begin{split}\begin{array}{llcllll} \def\mathdef2805#1{{}}\mathdef2805{plain instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \def\mathdef2870#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2870{unreachable} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{unreachable}} \\ &&|& \def\mathdef2871#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2871{nop} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{nop}} \\ &&|& \def\mathdef2872#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2872{br}~~l{:}\href{../text/modules.html#text-labelidx}{\mathtt{labelidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br}}~l \\ &&|& \def\mathdef2873#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2873{br\_if}~~l{:}\href{../text/modules.html#text-labelidx}{\mathtt{labelidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br\_if}}~l \\ &&|& \def\mathdef2874#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2874{br\_table}~~l^\ast{:}\href{../text/conventions.html#text-list}{\mathtt{list}}(\href{../text/modules.html#text-labelidx}{\mathtt{labelidx}}_I)~~l_N{:}\href{../text/modules.html#text-labelidx}{\mathtt{labelidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br\_table}}~l^\ast~l_N \\ &&|& \def\mathdef2875#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2875{br\_on\_null}~~l{:}\href{../text/modules.html#text-labelidx}{\mathtt{labelidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br\_on\_null}}~l \\ &&|& \def\mathdef2876#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2876{br\_on\_non\_null}~~l{:}\href{../text/modules.html#text-labelidx}{\mathtt{labelidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br\_on\_non\_null}}~l \\ &&|& \def\mathdef2877#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2877{br\_on\_cast}~~l{:}\href{../text/modules.html#text-labelidx}{\mathtt{labelidx}}_I~~t_1{:}\href{../text/types.html#text-reftype}{\mathtt{reftype}}~~t_2{:}\href{../text/types.html#text-reftype}{\mathtt{reftype}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br\_on\_cast}}~l~t_1~t_2 \\ &&|& \def\mathdef2878#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2878{br\_on\_cast\_fail}~~l{:}\href{../text/modules.html#text-labelidx}{\mathtt{labelidx}}_I~~t_1{:}\href{../text/types.html#text-reftype}{\mathtt{reftype}}~~t_2{:}\href{../text/types.html#text-reftype}{\mathtt{reftype}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br\_on\_cast\_fail}}~l~t_1~t_2 \\ &&|& \def\mathdef2879#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2879{return} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{return}} \\ &&|& \def\mathdef2880#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2880{call}~~x{:}\href{../text/modules.html#text-funcidx}{\mathtt{funcidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{call}}~x \\ &&|& \def\mathdef2881#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2881{call\_ref}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{call\_ref}}~x \\ &&|& \def\mathdef2882#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2882{call\_indirect}~~x{:}\href{../text/modules.html#text-tableidx}{\mathtt{tableidx}}~~y,I'{:}\href{../text/modules.html#text-typeuse}{\mathtt{typeuse}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{call\_indirect}}~x~y & (\mathrel{\mbox{if}} I' = \{\href{../text/conventions.html#text-context}{\mathsf{locals}}~(\epsilon)^\ast\}) \\&&|& \def\mathdef2883#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2883{return\_call}~~x{:}\href{../text/modules.html#text-funcidx}{\mathtt{funcidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{return\_call}}~x \\ &&|& \def\mathdef2884#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2884{return\_call\_ref}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{return\_call\_ref}}~x \\ &&|& \def\mathdef2885#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2885{return\_call\_indirect}~~x{:}\href{../text/modules.html#text-tableidx}{\mathtt{tableidx}}~~y,I'{:}\href{../text/modules.html#text-typeuse}{\mathtt{typeuse}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{return\_call\_indirect}}~x~y & (\mathrel{\mbox{if}} I' = \{\href{../text/conventions.html#text-context}{\mathsf{locals}}~(\epsilon)^\ast\}) \\ &&|& \def\mathdef2886#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2886{throw}~~x{:}\href{../text/modules.html#text-tagidx}{\mathtt{tagidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{throw}}~x \\ &&|& \def\mathdef2887#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2887{throw\_ref} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{throw\_ref}} \\ \end{array}\end{split}\]

Note

The side condition stating that the identifier context \(I'\) must only contain unnamed entries in the rule for \(\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{call\_indirect}}\) enforces that no identifier can be bound in any \(\href{../text/types.html#text-functype}{\mathtt{param}}\) declaration appearing in the type annotation.

Abbreviations

The \(\def\mathdef2888#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2888{else}\) keyword of an \(\def\mathdef2889#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2889{if}\) instruction can be omitted if the following instruction sequence is empty.

\[\begin{array}{llclll} \def\mathdef2805#1{{}}\mathdef2805{block instruction} & \def\mathdef2890#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2890{if}~~\href{../text/instructions.html#text-label}{\mathtt{label}}~~\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}_I~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}^\ast~~\def\mathdef2891#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2891{end} &\equiv& \def\mathdef2892#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2892{if}~~\href{../text/instructions.html#text-label}{\mathtt{label}}~~\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}_I~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}^\ast~~\def\mathdef2893#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2893{else}~~\def\mathdef2894#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2894{end} \end{array}\]

Also, for backwards compatibility, the table index to \(\def\mathdef2895#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2895{call\_indirect}\) and \(\def\mathdef2896#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2896{return\_call\_indirect}\) can be omitted, defaulting to \(0\).

\[\begin{split}\begin{array}{llclll} \def\mathdef2805#1{{}}\mathdef2805{plain instruction} & \def\mathdef2897#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2897{call\_indirect}~~\href{../text/modules.html#text-typeuse}{\mathtt{typeuse}} &\equiv& \def\mathdef2898#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2898{call\_indirect}~~0~~\href{../text/modules.html#text-typeuse}{\mathtt{typeuse}} \\ \def\mathdef2899#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2899{return\_call\_indirect}~~\href{../text/modules.html#text-typeuse}{\mathtt{typeuse}} &\equiv& \def\mathdef2900#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2900{return\_call\_indirect}~~0~~\href{../text/modules.html#text-typeuse}{\mathtt{typeuse}} \\ \end{array}\end{split}\]

Reference Instructions

\[\begin{split}\begin{array}{llclll} \def\mathdef2805#1{{}}\mathdef2805{instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \dots \\ &&|& \def\mathdef2901#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2901{ref.null}~~t{:}\href{../text/types.html#text-heaptype}{\mathtt{heaptype}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref{.}null}}~t \\ &&|& \def\mathdef2902#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2902{ref.func}~~x{:}\href{../text/modules.html#text-funcidx}{\mathtt{funcidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref{.}func}}~x \\ &&|& \def\mathdef2903#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2903{ref.is\_null} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref{.}is\_null}} \\ &&|& \def\mathdef2904#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2904{ref.as\_non\_null} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref{.}as\_non\_null}} \\ &&|& \def\mathdef2905#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2905{ref.eq} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref{.}eq}} \\ &&|& \def\mathdef2906#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2906{ref.test}~~t{:}\href{../text/types.html#text-reftype}{\mathtt{reftype}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref{.}test}}~t \\ &&|& \def\mathdef2907#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2907{ref.cast}~~t{:}\href{../text/types.html#text-reftype}{\mathtt{reftype}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref{.}cast}}~t \\ &&|& \def\mathdef2908#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2908{struct.new}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-struct}{\mathsf{struct{.}new}}~x \\ &&|& \def\mathdef2909#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2909{struct.new\_default}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-struct}{\mathsf{struct{.}new\_default}}~x \\ &&|& \def\mathdef2910#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2910{struct.get}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I~~y{:}\href{../text/modules.html#text-fieldidx}{\mathtt{fieldidx}}_{I,x} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-struct}{\mathsf{struct{.}get}}~x~y \\ &&|& \def\mathdef2911#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2911{struct.get\_u}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I~~y{:}\href{../text/modules.html#text-fieldidx}{\mathtt{fieldidx}}_{I,x} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-struct}{\mathsf{struct{.}get\_u}}~x~y \\ &&|& \def\mathdef2912#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2912{struct.get\_s}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I~~y{:}\href{../text/modules.html#text-fieldidx}{\mathtt{fieldidx}}_{I,x} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-struct}{\mathsf{struct{.}get\_s}}~x~y \\ &&|& \def\mathdef2913#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2913{struct.set}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I~~y{:}\href{../text/modules.html#text-fieldidx}{\mathtt{fieldidx}}_{I,x} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-struct}{\mathsf{struct{.}set}}~x~y \\ &&|& \def\mathdef2914#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2914{array.new}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array{.}new}}~x \\ &&|& \def\mathdef2915#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2915{array.new\_default}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array{.}new\_default}}~x \\ &&|& \def\mathdef2916#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2916{array.new\_fixed}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I~~n{:}\href{../text/values.html#text-int}{\def\mathdef2835#1{{\mathtt{u}#1}}\mathdef2835{\mathtt{32}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array{.}new\_fixed}}~x~n \\ &&|& \def\mathdef2917#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2917{array.new\_data}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I~~y{:}\href{../text/modules.html#text-dataidx}{\mathtt{dataidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array{.}new\_data}}~x~y \\ &&|& \def\mathdef2918#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2918{array.new\_elem}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I~~y{:}\href{../text/modules.html#text-elemidx}{\mathtt{elemidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array{.}new\_elem}}~x~y \\ &&|& \def\mathdef2919#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2919{array.get}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array{.}get}}~x \\ &&|& \def\mathdef2920#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2920{array.get\_u}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array{.}get\_u}}~x \\ &&|& \def\mathdef2921#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2921{array.get\_s}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array{.}get\_s}}~x \\ &&|& \def\mathdef2922#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2922{array.set}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array{.}set}}~x \\ &&|& \def\mathdef2923#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2923{array.len} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array{.}len}} \\ &&|& \def\mathdef2924#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2924{array.fill}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array{.}fill}}~x \\ &&|& \def\mathdef2925#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2925{array.copy}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I~~y{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array{.}copy}}~x~y \\ &&|& \def\mathdef2926#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2926{array.init\_data}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I~~y{:}\href{../text/modules.html#text-dataidx}{\mathtt{dataidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array{.}init\_data}}~x~y \\ &&|& \def\mathdef2927#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2927{array.init\_elem}~~x{:}\href{../text/modules.html#text-typeidx}{\mathtt{typeidx}}_I~~y{:}\href{../text/modules.html#text-elemidx}{\mathtt{elemidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array{.}init\_elem}}~x~y \\ &&|& \def\mathdef2928#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2928{ref.i31} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-i31}{\mathsf{ref{.}i\scriptstyle31}} \\ &&|& \def\mathdef2929#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2929{i31.get\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-i31}{\mathsf{i{\scriptstyle31}{.}get\_u}} \\ &&|& \def\mathdef2930#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2930{i31.get\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-i31}{\mathsf{i{\scriptstyle31}{.}get\_s}} \\ &&|& \def\mathdef2931#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2931{any.convert\_extern} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-extern}{\mathsf{any{.}convert\_extern}} \\ &&|& \def\mathdef2932#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2932{extern.convert\_any} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-extern}{\mathsf{extern{.}convert\_any}} \\ \end{array}\end{split}\]

Parametric Instructions

\[\begin{split}\begin{array}{llclll} \def\mathdef2805#1{{}}\mathdef2805{instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \dots \\ &&|& \def\mathdef2933#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2933{drop} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-parametric}{\mathsf{drop}} \\ &&|& \def\mathdef2934#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2934{select}~((t{:}\href{../text/types.html#text-functype}{\mathtt{result}}_I)^\ast)^? &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-parametric}{\mathsf{select}}~(t^\ast)^? \\ \end{array}\end{split}\]

Variable Instructions

\[\begin{split}\begin{array}{llclll} \def\mathdef2805#1{{}}\mathdef2805{instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \dots \\ &&|& \def\mathdef2935#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2935{local.get}~~x{:}\href{../text/modules.html#text-localidx}{\mathtt{localidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{local{.}get}}~x \\ &&|& \def\mathdef2936#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2936{local.set}~~x{:}\href{../text/modules.html#text-localidx}{\mathtt{localidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{local{.}set}}~x \\ &&|& \def\mathdef2937#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2937{local.tee}~~x{:}\href{../text/modules.html#text-localidx}{\mathtt{localidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{local{.}tee}}~x \\ &&|& \def\mathdef2938#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2938{global.get}~~x{:}\href{../text/modules.html#text-globalidx}{\mathtt{globalidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{global{.}get}}~x \\ &&|& \def\mathdef2939#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2939{global.set}~~x{:}\href{../text/modules.html#text-globalidx}{\mathtt{globalidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{global{.}set}}~x \\ \end{array}\end{split}\]

Table Instructions

\[\begin{split}\begin{array}{llclll} \def\mathdef2805#1{{}}\mathdef2805{instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \dots \\ &&|& \def\mathdef2940#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2940{table.get}~~x{:}\href{../text/modules.html#text-tableidx}{\mathtt{tableidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table{.}get}}~x \\ &&|& \def\mathdef2941#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2941{table.set}~~x{:}\href{../text/modules.html#text-tableidx}{\mathtt{tableidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table{.}set}}~x \\ &&|& \def\mathdef2942#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2942{table.size}~~x{:}\href{../text/modules.html#text-tableidx}{\mathtt{tableidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table{.}size}}~x \\ &&|& \def\mathdef2943#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2943{table.grow}~~x{:}\href{../text/modules.html#text-tableidx}{\mathtt{tableidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table{.}grow}}~x \\ &&|& \def\mathdef2944#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2944{table.fill}~~x{:}\href{../text/modules.html#text-tableidx}{\mathtt{tableidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table{.}fill}}~x \\ &&|& \def\mathdef2945#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2945{table.copy}~~x{:}\href{../text/modules.html#text-tableidx}{\mathtt{tableidx}}_I~~y{:}\href{../text/modules.html#text-tableidx}{\mathtt{tableidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table{.}copy}}~x~y \\ &&|& \def\mathdef2946#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2946{table.init}~~x{:}\href{../text/modules.html#text-tableidx}{\mathtt{tableidx}}_I~~y{:}\href{../text/modules.html#text-elemidx}{\mathtt{elemidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table{.}init}}~x~y \\ &&|& \def\mathdef2947#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2947{elem.drop}~~x{:}\href{../text/modules.html#text-elemidx}{\mathtt{elemidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{elem{.}drop}}~x \\ \end{array}\end{split}\]

Abbreviations

For backwards compatibility, all table indices may be omitted from table instructions, defaulting to \(0\).

\[\begin{split}\begin{array}{llcl} \def\mathdef2805#1{{}}\mathdef2805{instruction} & \def\mathdef2948#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2948{table.get} &\equiv& \def\mathdef2949#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2949{table.get}~~\def\mathdef2950#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2950{0} \\ & \def\mathdef2951#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2951{table.set} &\equiv& \def\mathdef2952#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2952{table.set}~~\def\mathdef2953#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2953{0} \\ & \def\mathdef2954#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2954{table.size} &\equiv& \def\mathdef2955#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2955{table.size}~~\def\mathdef2956#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2956{0} \\ & \def\mathdef2957#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2957{table.grow} &\equiv& \def\mathdef2958#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2958{table.grow}~~\def\mathdef2959#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2959{0} \\ & \def\mathdef2960#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2960{table.fill} &\equiv& \def\mathdef2961#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2961{table.fill}~~\def\mathdef2962#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2962{0} \\ & \def\mathdef2963#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2963{table.copy} &\equiv& \def\mathdef2964#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2964{table.copy}~~\def\mathdef2965#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2965{0}~~\def\mathdef2966#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2966{0} \\ & \def\mathdef2967#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2967{table.init}~~x{:}\href{../text/modules.html#text-elemidx}{\mathtt{elemidx}}_I &\equiv& \def\mathdef2968#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2968{table.init}~~\def\mathdef2969#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2969{0}~~x{:}\href{../text/modules.html#text-elemidx}{\mathtt{elemidx}}_I \\ \end{array}\end{split}\]

Memory Instructions

The offset and alignment immediates to memory instructions are optional. The offset defaults to \(\mathtt{0}\), the alignment to the storage size of the respective memory access, which is its natural alignment. Lexically, an \(\href{../text/instructions.html#text-memarg}{\mathtt{offset}}\) or \(\href{../text/instructions.html#text-memarg}{\mathtt{align}}\) phrase is considered a single keyword token, so no white space is allowed around the \(\def\mathdef2970#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2970{=}\).

\[\begin{split}\begin{array}{llcllll} \def\mathdef2805#1{{}}\mathdef2805{memory argument} & \href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_N &::=& o{:}\href{../text/instructions.html#text-memarg}{\mathtt{offset}}~~a{:}\href{../text/instructions.html#text-memarg}{\mathtt{align}}_N &\Rightarrow& \{ \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{align}}~n,~\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{offset}}~o \} & (\mathrel{\mbox{if}} a = 2^n) \\ \def\mathdef2805#1{{}}\mathdef2805{memory offset} & \href{../text/instructions.html#text-memarg}{\mathtt{offset}} &::=& \def\mathdef2971#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2971{offset{=}}o{:}\href{../text/values.html#text-int}{\def\mathdef2835#1{{\mathtt{u}#1}}\mathdef2835{\mathtt{32}}} &\Rightarrow& o \\ &&|& \epsilon &\Rightarrow& 0 \\ \def\mathdef2805#1{{}}\mathdef2805{memory alignment} & \href{../text/instructions.html#text-memarg}{\mathtt{align}}_N &::=& \def\mathdef2972#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2972{align{=}}a{:}\href{../text/values.html#text-int}{\def\mathdef2835#1{{\mathtt{u}#1}}\mathdef2835{\mathtt{32}}} &\Rightarrow& a \\ &&|& \epsilon &\Rightarrow& N \\ \def\mathdef2805#1{{}}\mathdef2805{instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \dots \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\ &&|& \def\mathdef2973#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2973{i32.load}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~x~m \\ &&|& \def\mathdef2974#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2974{i64.load}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~x~m \\ &&|& \def\mathdef2975#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2975{f32.load}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~x~m \\ &&|& \def\mathdef2976#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2976{f64.load}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~x~m \\ &&|& \def\mathdef2977#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2977{v128.load}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_{16} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~x~m \\ &&|& \def\mathdef2978#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2978{i32.load8\_s}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_s}~x~m \\ &&|& \def\mathdef2979#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2979{i32.load8\_u}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_u}~x~m \\ &&|& \def\mathdef2980#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2980{i32.load16\_s}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_s}~x~m \\ &&|& \def\mathdef2981#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2981{i32.load16\_u}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_u}~x~m \\ &&|& \def\mathdef2982#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2982{i64.load8\_s}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_s}~x~m \\ &&|& \def\mathdef2983#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2983{i64.load8\_u}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_u}~x~m \\ &&|& \def\mathdef2984#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2984{i64.load16\_s}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_s}~x~m \\ &&|& \def\mathdef2985#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2985{i64.load16\_u}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_u}~x~m \\ &&|& \def\mathdef2986#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2986{i64.load32\_s}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_s}~x~m \\ &&|& \def\mathdef2987#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2987{i64.load32\_u}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_u}~x~m \\ &&|& \def\mathdef2988#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2988{v128.load8x8\_s}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8x8\_s}~x~m \\ &&|& \def\mathdef2989#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2989{v128.load8x8\_u}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8x8\_u}~x~m \\ &&|& \def\mathdef2990#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2990{v128.load16x4\_s}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16x4\_s}~x~m \\ &&|& \def\mathdef2991#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2991{v128.load16x4\_u}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16x4\_u}~x~m \\ &&|& \def\mathdef2992#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2992{v128.load32x2\_s}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32x2\_s}~x~m \\ &&|& \def\mathdef2993#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2993{v128.load32x2\_u}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32x2\_u}~x~m \\ &&|& \def\mathdef2994#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2994{v128.load8\_splat}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1 &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_splat}~x~m \\ &&|& \def\mathdef2995#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2995{v128.load16\_splat}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2 &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_splat}~x~m \\ &&|& \def\mathdef2996#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2996{v128.load32\_splat}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_splat}~x~m \\ &&|& \def\mathdef2997#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2997{v128.load64\_splat}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{64\_splat}~x~m \\ &&|& \def\mathdef2998#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2998{v128.load32\_zero}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_zero}~x~m \\ &&|& \def\mathdef2999#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2999{v128.load64\_zero}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{64\_zero}~x~m \\ &&|& \def\mathdef3000#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3000{v128.load8\_lane}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1~~y{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_lane}~x~m~y \\ &&|& \def\mathdef3001#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3001{v128.load16\_lane}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2~~y{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_lane}~x~m~y \\ &&|& \def\mathdef3002#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3002{v128.load32\_lane}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4~~y{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_lane}~x~m~y \\ &&|& \def\mathdef3003#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3003{v128.load64\_lane}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8~~y{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{64\_lane}~x~m~y \\ &&|& \def\mathdef3004#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3004{i32.store}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~x~m \\ &&|& \def\mathdef3005#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3005{i64.store}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~x~m \\ &&|& \def\mathdef3006#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3006{f32.store}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~x~m \\ &&|& \def\mathdef3007#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3007{f64.store}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~x~m \\ &&|& \def\mathdef3008#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3008{v128.store}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_{16} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~x~m \\ &&|& \def\mathdef3009#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3009{i32.store8}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{8}~x~m \\ &&|& \def\mathdef3010#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3010{i32.store16}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{16}~x~m \\ &&|& \def\mathdef3011#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3011{i64.store8}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{8}~x~m \\ &&|& \def\mathdef3012#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3012{i64.store16}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{16}~x~m \\ &&|& \def\mathdef3013#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3013{i64.store32}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{32}~x~m \\ &&|& \def\mathdef3014#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3014{v128.store8\_lane}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1~~y{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{8\_lane}~x~m~y \\ &&|& \def\mathdef3015#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3015{v128.store16\_lane}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2~~y{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{16\_lane}~x~m~y \\ &&|& \def\mathdef3016#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3016{v128.store32\_lane}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4~~y{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{32\_lane}~x~m~y \\ &&|& \def\mathdef3017#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3017{v128.store64\_lane}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8~~y{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{64\_lane}~x~m~y \\ \def\mathdef3018#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3018{memory.size}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory{.}size}}~x \\ &&|& \def\mathdef3019#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3019{memory.grow}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory{.}grow}}~x \\ &&|& \def\mathdef3020#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3020{memory.fill}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory{.}fill}}~x \\ &&|& \def\mathdef3021#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3021{memory.copy}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~y{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory{.}copy}}~x~y \\ &&|& \def\mathdef3022#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3022{memory.init}~~x{:}\href{../text/modules.html#text-memidx}{\mathtt{memidx}}~~y{:}\href{../text/modules.html#text-dataidx}{\mathtt{dataidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory{.}init}}~x~y \\ &&|& \def\mathdef3023#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3023{data.drop}~~x{:}\href{../text/modules.html#text-dataidx}{\mathtt{dataidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{data{.}drop}}~x \\ \end{array}\end{split}\]

Abbreviations

As an abbreviation, the memory index can be omitted in all memory instructions, defaulting to \(\mathtt{0}\).

\[\begin{split}\begin{array}{llclll} \def\mathdef2805#1{{}}\mathdef2805{instruction} & \href{../text/types.html#text-numtype}{\mathtt{numtype}}\def\mathdef3024#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3024{.load}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} &\equiv& \href{../text/types.html#text-numtype}{\mathtt{numtype}}\def\mathdef3025#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3025{.load}~~\def\mathdef3026#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3026{0}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} \\& \href{../text/types.html#text-vectype}{\mathtt{vectype}}\def\mathdef3027#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3027{.load}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} &\equiv& \href{../text/types.html#text-vectype}{\mathtt{vectype}}\def\mathdef3028#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3028{.load}~~\def\mathdef3029#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3029{0}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} \\& \href{../text/types.html#text-numtype}{\mathtt{numtype}}\def\mathdef3030#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3030{.load}N\def\mathdef3031#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3031{\_}\href{../syntax/instructions.html#syntax-sx}{\mathit{sx}}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} &\equiv& \href{../text/types.html#text-numtype}{\mathtt{numtype}}\def\mathdef3032#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3032{.load}N\def\mathdef3033#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3033{\_}\href{../syntax/instructions.html#syntax-sx}{\mathit{sx}}~~\def\mathdef3034#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3034{0}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} \\& \href{../text/types.html#text-vectype}{\mathtt{vectype}}\def\mathdef3035#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3035{.load}{N}\mathsf{x}M\def\mathdef3036#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3036{\_}\href{../syntax/instructions.html#syntax-sx}{\mathit{sx}}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} &\equiv& \href{../text/types.html#text-vectype}{\mathtt{vectype}}\def\mathdef3037#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3037{.load}{N}\mathsf{x}M\def\mathdef3038#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3038{\_}\href{../syntax/instructions.html#syntax-sx}{\mathit{sx}}~~\def\mathdef3039#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3039{0}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} \\& \href{../text/types.html#text-vectype}{\mathtt{vectype}}\def\mathdef3040#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3040{.load}N\def\mathdef3041#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3041{\_splat}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} &\equiv& \href{../text/types.html#text-vectype}{\mathtt{vectype}}\def\mathdef3042#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3042{.load}N\def\mathdef3043#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3043{\_splat}~~\def\mathdef3044#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3044{0}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} \\& \href{../text/types.html#text-vectype}{\mathtt{vectype}}\def\mathdef3045#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3045{.load}N\def\mathdef3046#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3046{\_zero}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} &\equiv& \href{../text/types.html#text-vectype}{\mathtt{vectype}}\def\mathdef3047#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3047{.load}N\def\mathdef3048#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3048{\_zero}~~\def\mathdef3049#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3049{0}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} \\& \href{../text/types.html#text-vectype}{\mathtt{vectype}}\def\mathdef3050#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3050{.load}N\def\mathdef3051#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3051{\_lane}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}~~\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\equiv& \href{../text/types.html#text-vectype}{\mathtt{vectype}}\def\mathdef3052#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3052{.load}N\def\mathdef3053#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3053{\_lane}~~\def\mathdef3054#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3054{0}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}~~\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} \\& \href{../text/types.html#text-numtype}{\mathtt{numtype}}\def\mathdef3055#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3055{.store}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} &\equiv& \href{../text/types.html#text-numtype}{\mathtt{numtype}}\def\mathdef3056#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3056{.store}~~\def\mathdef3057#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3057{0}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} \\& \href{../text/types.html#text-vectype}{\mathtt{vectype}}\def\mathdef3058#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3058{.store}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} &\equiv& \href{../text/types.html#text-vectype}{\mathtt{vectype}}\def\mathdef3059#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3059{.store}~~\def\mathdef3060#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3060{0}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} \\& \href{../text/types.html#text-numtype}{\mathtt{numtype}}\def\mathdef3061#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3061{.store}N~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} &\equiv& \href{../text/types.html#text-numtype}{\mathtt{numtype}}\def\mathdef3062#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3062{.store}N~~\def\mathdef3063#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3063{0}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}} \\& \href{../text/types.html#text-vectype}{\mathtt{vectype}}\def\mathdef3064#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3064{.store}N\def\mathdef3065#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3065{\_lane}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}~~\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\equiv& \href{../text/types.html#text-vectype}{\mathtt{vectype}}\def\mathdef3066#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3066{.store}N\def\mathdef3067#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3067{\_lane}~~\def\mathdef3068#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3068{0}~~\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}~~\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} \\& \def\mathdef3069#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3069{memory.size} &\equiv& \def\mathdef3070#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3070{memory.size}~~\def\mathdef3071#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3071{0} \\& \def\mathdef3072#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3072{memory.grow} &\equiv& \def\mathdef3073#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3073{memory.grow}~~\def\mathdef3074#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3074{0} \\& \def\mathdef3075#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3075{memory.fill} &\equiv& \def\mathdef3076#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3076{memory.fill}~~\def\mathdef3077#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3077{0} \\& \def\mathdef3078#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3078{memory.copy} &\equiv& \def\mathdef3079#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3079{memory.copy}~~\def\mathdef3080#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3080{0}~~\def\mathdef3081#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3081{0} \\& \def\mathdef3082#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3082{memory.init}~~x{:}\href{../text/modules.html#text-elemidx}{\mathtt{elemidx}}_I &\equiv& \def\mathdef3083#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3083{memory.init}~~\def\mathdef3084#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3084{0}~~x{:}\href{../text/modules.html#text-elemidx}{\mathtt{elemidx}}_I \end{array}\end{split}\]

Numeric Instructions

\[\begin{split}\begin{array}{llclll} \def\mathdef2805#1{{}}\mathdef2805{instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \dots \\&&|& \def\mathdef3085#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3085{i32.const}~~n{:}\href{../text/values.html#text-int}{\def\mathdef2843#1{{\mathtt{i}#1}}\mathdef2843{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~n \\ &&|& \def\mathdef3086#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3086{i64.const}~~n{:}\href{../text/values.html#text-int}{\def\mathdef2844#1{{\mathtt{i}#1}}\mathdef2844{\mathtt{64}}} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~n \\ &&|& \def\mathdef3087#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3087{f32.const}~~z{:}\href{../text/values.html#text-float}{\def\mathdef2847#1{{\mathtt{f}#1}}\mathdef2847{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~z \\ &&|& \def\mathdef3088#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3088{f64.const}~~z{:}\href{../text/values.html#text-float}{\def\mathdef2848#1{{\mathtt{f}#1}}\mathdef2848{\mathtt{64}}} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~z \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef3089#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3089{i32.clz} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{clz}} \\ &&|& \def\mathdef3090#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3090{i32.ctz} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ctz}} \\ &&|& \def\mathdef3091#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3091{i32.popcnt} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{popcnt}} \\ &&|& \def\mathdef3092#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3092{i32.add} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef3093#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3093{i32.sub} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef3094#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3094{i32.mul} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef3095#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3095{i32.div\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_s} \\ &&|& \def\mathdef3096#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3096{i32.div\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_u} \\ &&|& \def\mathdef3097#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3097{i32.rem\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_s} \\ &&|& \def\mathdef3098#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3098{i32.rem\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_u} \\ &&|& \def\mathdef3099#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3099{i32.and} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{and}} \\ &&|& \def\mathdef3100#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3100{i32.or} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{or}} \\ &&|& \def\mathdef3101#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3101{i32.xor} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{xor}} \\ &&|& \def\mathdef3102#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3102{i32.shl} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shl}} \\ &&|& \def\mathdef3103#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3103{i32.shr\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef3104#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3104{i32.shr\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef3105#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3105{i32.rotl} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rotl}} \\ &&|& \def\mathdef3106#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3106{i32.rotr} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rotr}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef3107#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3107{i64.clz} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{clz}} \\ &&|& \def\mathdef3108#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3108{i64.ctz} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ctz}} \\ &&|& \def\mathdef3109#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3109{i64.popcnt} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{popcnt}} \\ &&|& \def\mathdef3110#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3110{i64.add} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef3111#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3111{i64.sub} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef3112#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3112{i64.mul} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef3113#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3113{i64.div\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_s} \\ &&|& \def\mathdef3114#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3114{i64.div\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_u} \\ &&|& \def\mathdef3115#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3115{i64.rem\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_s} \\ &&|& \def\mathdef3116#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3116{i64.rem\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_u} \\ &&|& \def\mathdef3117#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3117{i64.and} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{and}} \\ &&|& \def\mathdef3118#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3118{i64.or} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{or}} \\ &&|& \def\mathdef3119#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3119{i64.xor} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{xor}} \\ &&|& \def\mathdef3120#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3120{i64.shl} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shl}} \\ &&|& \def\mathdef3121#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3121{i64.shr\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef3122#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3122{i64.shr\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef3123#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3123{i64.rotl} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rotl}} \\ &&|& \def\mathdef3124#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3124{i64.rotr} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rotr}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef3125#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3125{f32.abs} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{abs}} \\ &&|& \def\mathdef3126#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3126{f32.neg} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{neg}} \\ &&|& \def\mathdef3127#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3127{f32.ceil} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ceil}} \\ &&|& \def\mathdef3128#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3128{f32.floor} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{floor}} \\ &&|& \def\mathdef3129#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3129{f32.trunc} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}} \\ &&|& \def\mathdef3130#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3130{f32.nearest} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{nearest}} \\ &&|& \def\mathdef3131#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3131{f32.sqrt} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sqrt}} \\ &&|& \def\mathdef3132#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3132{f32.add} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef3133#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3133{f32.sub} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef3134#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3134{f32.mul} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef3135#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3135{f32.div} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}} \\ &&|& \def\mathdef3136#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3136{f32.min} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{min}} \\ &&|& \def\mathdef3137#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3137{f32.max} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{max}} \\ &&|& \def\mathdef3138#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3138{f32.copysign} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{copysign}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef3139#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3139{f64.abs} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{abs}} \\ &&|& \def\mathdef3140#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3140{f64.neg} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{neg}} \\ &&|& \def\mathdef3141#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3141{f64.ceil} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ceil}} \\ &&|& \def\mathdef3142#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3142{f64.floor} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{floor}} \\ &&|& \def\mathdef3143#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3143{f64.trunc} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}} \\ &&|& \def\mathdef3144#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3144{f64.nearest} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{nearest}} \\ &&|& \def\mathdef3145#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3145{f64.sqrt} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sqrt}} \\ &&|& \def\mathdef3146#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3146{f64.add} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef3147#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3147{f64.sub} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef3148#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3148{f64.mul} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef3149#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3149{f64.div} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}} \\ &&|& \def\mathdef3150#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3150{f64.min} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{min}} \\ &&|& \def\mathdef3151#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3151{f64.max} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{max}} \\ &&|& \def\mathdef3152#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3152{f64.copysign} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{copysign}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef3153#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3153{i32.eqz} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eqz}} \\ &&|& \def\mathdef3154#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3154{i32.eq} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef3155#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3155{i32.ne} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef3156#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3156{i32.lt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef3157#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3157{i32.lt\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_u} \\ &&|& \def\mathdef3158#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3158{i32.gt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef3159#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3159{i32.gt\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_u} \\ &&|& \def\mathdef3160#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3160{i32.le\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef3161#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3161{i32.le\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_u} \\ &&|& \def\mathdef3162#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3162{i32.ge\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}}\mathsf{\_s} \\ &&|& \def\mathdef3163#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3163{i32.ge\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}}\mathsf{\_u} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef3164#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3164{i64.eqz} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eqz}} \\ &&|& \def\mathdef3165#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3165{i64.eq} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef3166#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3166{i64.ne} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef3167#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3167{i64.lt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef3168#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3168{i64.lt\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_u} \\ &&|& \def\mathdef3169#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3169{i64.gt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef3170#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3170{i64.gt\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_u} \\ &&|& \def\mathdef3171#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3171{i64.le\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef3172#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3172{i64.le\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_u} \\ &&|& \def\mathdef3173#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3173{i64.ge\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}}\mathsf{\_s} \\ &&|& \def\mathdef3174#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3174{i64.ge\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}}\mathsf{\_u} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef3175#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3175{f32.eq} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef3176#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3176{f32.ne} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef3177#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3177{f32.lt} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}} \\ &&|& \def\mathdef3178#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3178{f32.gt} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}} \\ &&|& \def\mathdef3179#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3179{f32.le} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}} \\ &&|& \def\mathdef3180#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3180{f32.ge} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef3181#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3181{f64.eq} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef3182#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3182{f64.ne} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef3183#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3183{f64.lt} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}} \\ &&|& \def\mathdef3184#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3184{f64.gt} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}} \\ &&|& \def\mathdef3185#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3185{f64.le} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}} \\ &&|& \def\mathdef3186#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3186{f64.ge} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef3187#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3187{i32.wrap\_i64} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{wrap}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}} \\ &&|& \def\mathdef3188#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3188{i32.trunc\_f32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}\mathsf{\_s} \\ &&|& \def\mathdef3189#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3189{i32.trunc\_f32\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}\mathsf{\_u} \\ &&|& \def\mathdef3190#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3190{i32.trunc\_f64\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}\mathsf{\_s} \\ &&|& \def\mathdef3191#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3191{i32.trunc\_f64\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}\mathsf{\_u} \\ &&|& \def\mathdef3192#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3192{i32.trunc\_sat\_f32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}\mathsf{\_s} \\ &&|& \def\mathdef3193#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3193{i32.trunc\_sat\_f32\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}\mathsf{\_u} \\ &&|& \def\mathdef3194#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3194{i32.trunc\_sat\_f64\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}\mathsf{\_s} \\ &&|& \def\mathdef3195#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3195{i32.trunc\_sat\_f64\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}\mathsf{\_u} \\ &&|& \def\mathdef3196#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3196{i64.extend\_i32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}\mathsf{\_s} \\ &&|& \def\mathdef3197#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3197{i64.extend\_i32\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}\mathsf{\_u} \\ &&|& \def\mathdef3198#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3198{i64.trunc\_f32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}\mathsf{\_s} \\ &&|& \def\mathdef3199#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3199{i64.trunc\_f32\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}\mathsf{\_u} \\ &&|& \def\mathdef3200#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3200{i64.trunc\_f64\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}\mathsf{\_s} \\ &&|& \def\mathdef3201#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3201{i64.trunc\_f64\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}\mathsf{\_u} \\ &&|& \def\mathdef3202#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3202{i64.trunc\_sat\_f32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}\mathsf{\_s} \\ &&|& \def\mathdef3203#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3203{i64.trunc\_sat\_f32\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}\mathsf{\_u} \\ &&|& \def\mathdef3204#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3204{i64.trunc\_sat\_f64\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}\mathsf{\_s} \\ &&|& \def\mathdef3205#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3205{i64.trunc\_sat\_f64\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}\mathsf{\_u} \\ &&|& \def\mathdef3206#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3206{f32.convert\_i32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}\mathsf{\_s} \\ &&|& \def\mathdef3207#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3207{f32.convert\_i32\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}\mathsf{\_u} \\ &&|& \def\mathdef3208#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3208{f32.convert\_i64\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}\mathsf{\_s} \\ &&|& \def\mathdef3209#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3209{f32.convert\_i64\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}\mathsf{\_u} \\ &&|& \def\mathdef3210#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3210{f32.demote\_f64} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{demote}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}} \\ &&|& \def\mathdef3211#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3211{f64.convert\_i32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}\mathsf{\_s} \\ &&|& \def\mathdef3212#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3212{f64.convert\_i32\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}\mathsf{\_u} \\ &&|& \def\mathdef3213#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3213{f64.convert\_i64\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}\mathsf{\_s} \\ &&|& \def\mathdef3214#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3214{f64.convert\_i64\_u} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}\mathsf{\_u} \\ &&|& \def\mathdef3215#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3215{f64.promote\_f32} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{promote}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}} \\ &&|& \def\mathdef3216#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3216{i32.reinterpret\_f32} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{reinterpret}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}} \\ &&|& \def\mathdef3217#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3217{i64.reinterpret\_f64} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{reinterpret}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}} \\ &&|& \def\mathdef3218#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3218{f32.reinterpret\_i32} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{reinterpret}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}} \\ &&|& \def\mathdef3219#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3219{f64.reinterpret\_i64} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{f\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{reinterpret}}\mathsf{\_}\href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef3220#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3220{i32.extend8\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{8\_s} \\ &&|& \def\mathdef3221#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3221{i32.extend16\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{16\_s} \\ &&|& \def\mathdef3222#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3222{i64.extend8\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{8\_s} \\ &&|& \def\mathdef3223#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3223{i64.extend16\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{16\_s} \\ &&|& \def\mathdef3224#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3224{i64.extend32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-numtype}{\mathsf{i\scriptstyle64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{32\_s} \\ \end{array}\end{split}\]

Vector Instructions

Vector constant instructions have a mandatory shape descriptor, which determines how the following values are parsed.

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3225#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3225{v128.const}~~\def\mathdef3226#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3226{i8x16}~~(n{:}\href{../text/values.html#text-int}{\def\mathdef2841#1{{\mathtt{i}#1}}\mathdef2841{\mathtt{8}}})^{16} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{const}}~\href{../exec/numerics.html#aux-bytes}{\mathrm{bytes}}_{i128}^{-1}(\href{../exec/numerics.html#aux-bytes}{\mathrm{bytes}}_{i8}(n)^{16}) \\ &&|& \def\mathdef3227#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3227{v128.const}~~\def\mathdef3228#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3228{i16x8}~~(n{:}\href{../text/values.html#text-int}{\def\mathdef2842#1{{\mathtt{i}#1}}\mathdef2842{\mathtt{16}}})^{8} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{const}}~\href{../exec/numerics.html#aux-bytes}{\mathrm{bytes}}_{i128}^{-1}(\href{../exec/numerics.html#aux-bytes}{\mathrm{bytes}}_{i16}(n)^8) \\ &&|& \def\mathdef3229#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3229{v128.const}~~\def\mathdef3230#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3230{i32x4}~~(n{:}\href{../text/values.html#text-int}{\def\mathdef2843#1{{\mathtt{i}#1}}\mathdef2843{\mathtt{32}}})^{4} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{const}}~\href{../exec/numerics.html#aux-bytes}{\mathrm{bytes}}_{i128}^{-1}(\href{../exec/numerics.html#aux-bytes}{\mathrm{bytes}}_{i32}(n)^4) \\ &&|& \def\mathdef3231#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3231{v128.const}~~\def\mathdef3232#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3232{i64x2}~~(n{:}\href{../text/values.html#text-int}{\def\mathdef2844#1{{\mathtt{i}#1}}\mathdef2844{\mathtt{64}}})^{2} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{const}}~\href{../exec/numerics.html#aux-bytes}{\mathrm{bytes}}_{i128}^{-1}(\href{../exec/numerics.html#aux-bytes}{\mathrm{bytes}}_{i64}(n)^2) \\ &&|& \def\mathdef3233#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3233{v128.const}~~\def\mathdef3234#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3234{f32x4}~~(z{:}\href{../text/values.html#text-float}{\def\mathdef2847#1{{\mathtt{f}#1}}\mathdef2847{\mathtt{32}}})^{4} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{const}}~\href{../exec/numerics.html#aux-bytes}{\mathrm{bytes}}_{i128}^{-1}(\href{../exec/numerics.html#aux-bytes}{\mathrm{bytes}}_{f32}(z)^4) \\ &&|& \def\mathdef3235#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3235{v128.const}~~\def\mathdef3236#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3236{f64x2}~~(z{:}\href{../text/values.html#text-float}{\def\mathdef2848#1{{\mathtt{f}#1}}\mathdef2848{\mathtt{64}}})^{2} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{const}}~\href{../exec/numerics.html#aux-bytes}{\mathrm{bytes}}_{i128}^{-1}(\href{../exec/numerics.html#aux-bytes}{\mathrm{bytes}}_{f64}(z)^2) \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3237#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3237{i8x16.shuffle}~~(laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}})^{16} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shuffle}}~laneidx^{16} \\ &&|& \def\mathdef3238#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3238{i8x16.swizzle} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{swizzle}} \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3239#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3239{i8x16.splat} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}}\\ &&|& \def\mathdef3240#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3240{i16x8.splat} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}}\\ &&|& \def\mathdef3241#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3241{i32x4.splat} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}}\\ &&|& \def\mathdef3242#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3242{i64x2.splat} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}}\\ &&|& \def\mathdef3243#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3243{f32x4.splat} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}}\\ &&|& \def\mathdef3244#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3244{f64x2.splat} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3245#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3245{i8x16.extract\_lane\_s}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_s}~laneidx \\ &&|& \def\mathdef3246#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3246{i8x16.extract\_lane\_u}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_u}~laneidx \\ &&|& \def\mathdef3247#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3247{i8x16.replace\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~laneidx \\ &&|& \def\mathdef3248#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3248{i16x8.extract\_lane\_s}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_s}~laneidx \\ &&|& \def\mathdef3249#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3249{i16x8.extract\_lane\_u}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_u}~laneidx \\ &&|& \def\mathdef3250#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3250{i16x8.replace\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~laneidx \\ &&|& \def\mathdef3251#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3251{i32x4.extract\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~laneidx \\ &&|& \def\mathdef3252#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3252{i32x4.replace\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~laneidx \\ &&|& \def\mathdef3253#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3253{i64x2.extract\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~laneidx \\ &&|& \def\mathdef3254#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3254{i64x2.replace\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~laneidx \\ &&|& \def\mathdef3255#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3255{f32x4.extract\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~laneidx \\ &&|& \def\mathdef3256#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3256{f32x4.replace\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~laneidx \\ &&|& \def\mathdef3257#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3257{f64x2.extract\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~laneidx \\ &&|& \def\mathdef3258#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3258{f64x2.replace\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2833#1{{\mathtt{u}#1}}\mathdef2833{\mathtt{8}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~laneidx \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3259#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3259{i8x16.eq} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}}\\ &&|& \def\mathdef3260#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3260{i8x16.ne} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}}\\ &&|& \def\mathdef3261#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3261{i8x16.lt\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s}\\ &&|& \def\mathdef3262#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3262{i8x16.lt\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_u}\\ &&|& \def\mathdef3263#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3263{i8x16.gt\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s}\\ &&|& \def\mathdef3264#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3264{i8x16.gt\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_u}\\ &&|& \def\mathdef3265#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3265{i8x16.le\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s}\\ &&|& \def\mathdef3266#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3266{i8x16.le\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_u}\\ &&|& \def\mathdef3267#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3267{i8x16.ge\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_s}\\ &&|& \def\mathdef3268#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3268{i8x16.ge\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_u}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3269#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3269{i16x8.eq} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}}\\ &&|& \def\mathdef3270#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3270{i16x8.ne} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}}\\ &&|& \def\mathdef3271#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3271{i16x8.lt\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s}\\ &&|& \def\mathdef3272#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3272{i16x8.lt\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_u}\\ &&|& \def\mathdef3273#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3273{i16x8.gt\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s}\\ &&|& \def\mathdef3274#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3274{i16x8.gt\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_u}\\ &&|& \def\mathdef3275#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3275{i16x8.le\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s}\\ &&|& \def\mathdef3276#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3276{i16x8.le\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_u}\\ &&|& \def\mathdef3277#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3277{i16x8.ge\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_s}\\ &&|& \def\mathdef3278#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3278{i16x8.ge\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_u}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3279#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3279{i32x4.eq} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}}\\ &&|& \def\mathdef3280#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3280{i32x4.ne} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}}\\ &&|& \def\mathdef3281#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3281{i32x4.lt\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s}\\ &&|& \def\mathdef3282#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3282{i32x4.lt\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_u}\\ &&|& \def\mathdef3283#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3283{i32x4.gt\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s}\\ &&|& \def\mathdef3284#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3284{i32x4.gt\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_u}\\ &&|& \def\mathdef3285#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3285{i32x4.le\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s}\\ &&|& \def\mathdef3286#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3286{i32x4.le\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_u}\\ &&|& \def\mathdef3287#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3287{i32x4.ge\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_s}\\ &&|& \def\mathdef3288#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3288{i32x4.ge\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_u}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3289#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3289{i64x2.eq} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}}\\ &&|& \def\mathdef3290#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3290{i64x2.ne} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}}\\ &&|& \def\mathdef3291#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3291{i64x2.lt\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s}\\ &&|& \def\mathdef3292#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3292{i64x2.gt\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s}\\ &&|& \def\mathdef3293#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3293{i64x2.le\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s}\\ &&|& \def\mathdef3294#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3294{i64x2.ge\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_s}\\ &&|& \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3295#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3295{f32x4.eq} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}}\\ &&|& \def\mathdef3296#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3296{f32x4.ne} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}}\\ &&|& \def\mathdef3297#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3297{f32x4.lt} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\\ &&|& \def\mathdef3298#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3298{f32x4.gt} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\\ &&|& \def\mathdef3299#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3299{f32x4.le} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\\ &&|& \def\mathdef3300#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3300{f32x4.ge} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3301#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3301{f64x2.eq} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}}\\ &&|& \def\mathdef3302#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3302{f64x2.ne} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}}\\ &&|& \def\mathdef3303#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3303{f64x2.lt} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\\ &&|& \def\mathdef3304#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3304{f64x2.gt} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\\ &&|& \def\mathdef3305#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3305{f64x2.le} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\\ &&|& \def\mathdef3306#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3306{f64x2.ge} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3307#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3307{v128.not} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{not}}\\ &&|& \def\mathdef3308#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3308{v128.and} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{and}}\\ &&|& \def\mathdef3309#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3309{v128.andnot} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{andnot}}\\ &&|& \def\mathdef3310#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3310{v128.or} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{or}}\\ &&|& \def\mathdef3311#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3311{v128.xor} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{xor}}\\ &&|& \def\mathdef3312#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3312{v128.bitselect} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitselect}}\\ &&|& \def\mathdef3313#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3313{v128.any\_true} &\Rightarrow& \href{../syntax/types.html#syntax-vectype}{\mathsf{v\scriptstyle128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{any\_true}} \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3314#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3314{i8x16.abs} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}}\\ &&|& \def\mathdef3315#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3315{i8x16.neg} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}}\\ &&|& \def\mathdef3316#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3316{i8x16.all\_true} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}}\\ &&|& \def\mathdef3317#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3317{i8x16.bitmask} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}}\\ &&|& \def\mathdef3318#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3318{i8x16.narrow\_i16x8\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i16x8\_s}\\ &&|& \def\mathdef3319#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3319{i8x16.narrow\_i16x8\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i16x8\_u}\\ &&|& \def\mathdef3320#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3320{i8x16.shl} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}}\\ &&|& \def\mathdef3321#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3321{i8x16.shr\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s}\\ &&|& \def\mathdef3322#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3322{i8x16.shr\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u}\\ &&|& \def\mathdef3323#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3323{i8x16.add} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\\ &&|& \def\mathdef3324#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3324{i8x16.add\_sat\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add\_sat}}\mathsf{\_s}\\ &&|& \def\mathdef3325#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3325{i8x16.add\_sat\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add\_sat}}\mathsf{\_u}\\ &&|& \def\mathdef3326#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3326{i8x16.sub} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\\ &&|& \def\mathdef3327#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3327{i8x16.sub\_sat\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub\_sat}}\mathsf{\_s}\\ &&|& \def\mathdef3328#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3328{i8x16.sub\_sat\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub\_sat}}\mathsf{\_u}\\ &&|& \def\mathdef3329#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3329{i8x16.min\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_s}\\ &&|& \def\mathdef3330#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3330{i8x16.min\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_u}\\ &&|& \def\mathdef3331#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3331{i8x16.max\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_s}\\ &&|& \def\mathdef3332#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3332{i8x16.max\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_u}\\ &&|& \def\mathdef3333#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3333{i8x16.avgr\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{avgr}}\mathsf{\_u}\\ &&|& \def\mathdef3334#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3334{i8x16.popcnt} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{popcnt}}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3335#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3335{i16x8.abs} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}}\\ &&|& \def\mathdef3336#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3336{i16x8.neg} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}}\\ &&|& \def\mathdef3337#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3337{i16x8.all\_true} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}}\\ &&|& \def\mathdef3338#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3338{i16x8.bitmask} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}}\\ &&|& \def\mathdef3339#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3339{i16x8.narrow\_i32x4\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i32x4\_s}\\ &&|& \def\mathdef3340#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3340{i16x8.narrow\_i32x4\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i32x4\_u}\\ &&|& \def\mathdef3341#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3341{i16x8.extend\_low\_i8x16\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i8x16\_s}\\ &&|& \def\mathdef3342#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3342{i16x8.extend\_high\_i8x16\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i8x16\_s}\\ &&|& \def\mathdef3343#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3343{i16x8.extend\_low\_i8x16\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i8x16\_u}\\ &&|& \def\mathdef3344#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3344{i16x8.extend\_high\_i8x16\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i8x16\_u}\\ &&|& \def\mathdef3345#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3345{i16x8.shl} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}}\\ &&|& \def\mathdef3346#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3346{i16x8.shr\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s}\\ &&|& \def\mathdef3347#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3347{i16x8.shr\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u}\\ &&|& \def\mathdef3348#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3348{i16x8.add} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\\ &&|& \def\mathdef3349#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3349{i16x8.add\_sat\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add\_sat}}\mathsf{\_s}\\ &&|& \def\mathdef3350#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3350{i16x8.add\_sat\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add\_sat}}\mathsf{\_u}\\ &&|& \def\mathdef3351#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3351{i16x8.sub} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\\ &&|& \def\mathdef3352#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3352{i16x8.sub\_sat\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub\_sat}}\mathsf{\_s}\\ &&|& \def\mathdef3353#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3353{i16x8.sub\_sat\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub\_sat}}\mathsf{\_u}\\ &&|& \def\mathdef3354#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3354{i16x8.mul} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}}\\ &&|& \def\mathdef3355#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3355{i16x8.min\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_s}\\ &&|& \def\mathdef3356#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3356{i16x8.min\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_u}\\ &&|& \def\mathdef3357#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3357{i16x8.max\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_s}\\ &&|& \def\mathdef3358#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3358{i16x8.max\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_u}\\ &&|& \def\mathdef3359#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3359{i16x8.avgr\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{avgr}}\mathsf{\_u}\\ &&|& \def\mathdef3360#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3360{i16x8.q15mulr\_sat\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{q{\scriptstyle15}mulr\_sat}}\mathsf{\_s}\\ &&|& \def\mathdef3361#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3361{i16x8.extmul\_low\_i8x16\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i8x16\_s}\\ &&|& \def\mathdef3362#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3362{i16x8.extmul\_high\_i8x16\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i8x16\_s}\\ &&|& \def\mathdef3363#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3363{i16x8.extmul\_low\_i8x16\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i8x16\_u}\\ &&|& \def\mathdef3364#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3364{i16x8.extmul\_high\_i8x16\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i8x16\_u}\\ &&|& \def\mathdef3365#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3365{i16x8.extadd\_pairwise\_i8x16\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extadd\_pairwise}}\mathsf{\_i8x16\_s}\\ &&|& \def\mathdef3366#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3366{i16x8.extadd\_pairwise\_i8x16\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extadd\_pairwise}}\mathsf{\_i8x16\_u}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3367#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3367{i32x4.abs} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}}\\ &&|& \def\mathdef3368#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3368{i32x4.neg} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}}\\ &&|& \def\mathdef3369#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3369{i32x4.all\_true} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}}\\ &&|& \def\mathdef3370#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3370{i32x4.bitmask} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}}\\ &&|& \def\mathdef3371#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3371{i32x4.extadd\_pairwise\_i16x8\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extadd\_pairwise}}\mathsf{\_i16x8\_s}\\ &&|& \def\mathdef3372#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3372{i32x4.extadd\_pairwise\_i16x8\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extadd\_pairwise}}\mathsf{\_i16x8\_u}\\ &&|& \def\mathdef3373#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3373{i32x4.extend\_low\_i16x8\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i16x8\_s}\\ &&|& \def\mathdef3374#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3374{i32x4.extend\_high\_i16x8\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i16x8\_s}\\ &&|& \def\mathdef3375#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3375{i32x4.extend\_low\_i16x8\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i16x8\_u}\\ &&|& \def\mathdef3376#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3376{i32x4.extend\_high\_i16x8\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i16x8\_u}\\ &&|& \def\mathdef3377#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3377{i32x4.shl} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}}\\ &&|& \def\mathdef3378#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3378{i32x4.shr\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s}\\ &&|& \def\mathdef3379#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3379{i32x4.shr\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u}\\ &&|& \def\mathdef3380#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3380{i32x4.add} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\\ &&|& \def\mathdef3381#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3381{i32x4.sub} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\\ &&|& \def\mathdef3382#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3382{i32x4.mul} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}}\\ &&|& \def\mathdef3383#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3383{i32x4.min\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_s}\\ &&|& \def\mathdef3384#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3384{i32x4.min\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_u}\\ &&|& \def\mathdef3385#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3385{i32x4.max\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_s}\\ &&|& \def\mathdef3386#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3386{i32x4.max\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_u}\\ &&|& \def\mathdef3387#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3387{i32x4.dot\_i16x8\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{dot}}\mathsf{\_i16x8\_s}\\ &&|& \def\mathdef3388#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3388{i32x4.extmul\_low\_i16x8\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i16x8\_s}\\ &&|& \def\mathdef3389#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3389{i32x4.extmul\_high\_i16x8\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i16x8\_s}\\ &&|& \def\mathdef3390#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3390{i32x4.extmul\_low\_i16x8\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i16x8\_u}\\ &&|& \def\mathdef3391#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3391{i32x4.extmul\_high\_i16x8\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i16x8\_u}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3392#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3392{i64x2.abs} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}}\\ &&|& \def\mathdef3393#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3393{i64x2.neg} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}}\\ &&|& \def\mathdef3394#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3394{i64x2.all\_true} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}}\\ &&|& \def\mathdef3395#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3395{i64x2.bitmask} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}}\\ &&|& \def\mathdef3396#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3396{i64x2.extend\_low\_i32x4\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i32x4\_s} \\ &&|& \def\mathdef3397#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3397{i64x2.extend\_high\_i32x4\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i32x4\_s} \\ &&|& \def\mathdef3398#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3398{i64x2.extend\_low\_i32x4\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i32x4\_u} \\ &&|& \def\mathdef3399#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3399{i64x2.extend\_high\_i32x4\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i32x4\_u} \\ &&|& \def\mathdef3400#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3400{i64x2.shl} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}}\\ &&|& \def\mathdef3401#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3401{i64x2.shr\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s}\\ &&|& \def\mathdef3402#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3402{i64x2.shr\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u}\\ &&|& \def\mathdef3403#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3403{i64x2.add} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\\ &&|& \def\mathdef3404#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3404{i64x2.sub} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\\ &&|& \def\mathdef3405#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3405{i64x2.mul} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}}\\ &&|& \def\mathdef3406#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3406{i64x2.extmul\_low\_i32x4\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i32x4\_s}\\ &&|& \def\mathdef3407#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3407{i64x2.extmul\_high\_i32x4\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i32x4\_s}\\ &&|& \def\mathdef3408#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3408{i64x2.extmul\_low\_i32x4\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i32x4\_u}\\ &&|& \def\mathdef3409#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3409{i64x2.extmul\_high\_i32x4\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i32x4\_u}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3410#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3410{f32x4.abs} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}}\\ &&|& \def\mathdef3411#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3411{f32x4.neg} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}}\\ &&|& \def\mathdef3412#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3412{f32x4.sqrt} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sqrt}}\\ &&|& \def\mathdef3413#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3413{f32x4.ceil} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ceil}}\\ &&|& \def\mathdef3414#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3414{f32x4.floor} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{floor}}\\ &&|& \def\mathdef3415#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3415{f32x4.trunc} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc}}\\ &&|& \def\mathdef3416#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3416{f32x4.nearest} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{nearest}}\\ &&|& \def\mathdef3417#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3417{f32x4.add} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\\ &&|& \def\mathdef3418#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3418{f32x4.sub} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\\ &&|& \def\mathdef3419#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3419{f32x4.mul} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}}\\ &&|& \def\mathdef3420#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3420{f32x4.div} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{div}}\\ &&|& \def\mathdef3421#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3421{f32x4.min} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\\ &&|& \def\mathdef3422#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3422{f32x4.max} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\\ &&|& \def\mathdef3423#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3423{f32x4.pmin} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{pmin}}\\ &&|& \def\mathdef3424#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3424{f32x4.pmax} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{pmax}}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3425#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3425{f64x2.abs} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}}\\ &&|& \def\mathdef3426#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3426{f64x2.neg} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}}\\ &&|& \def\mathdef3427#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3427{f64x2.sqrt} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sqrt}}\\ &&|& \def\mathdef3428#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3428{f64x2.ceil} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ceil}}\\ &&|& \def\mathdef3429#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3429{f64x2.floor} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{floor}}\\ &&|& \def\mathdef3430#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3430{f64x2.trunc} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc}}\\ &&|& \def\mathdef3431#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3431{f64x2.nearest} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{nearest}}\\ &&|& \def\mathdef3432#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3432{f64x2.add} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\\ &&|& \def\mathdef3433#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3433{f64x2.sub} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\\ &&|& \def\mathdef3434#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3434{f64x2.mul} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}}\\ &&|& \def\mathdef3435#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3435{f64x2.div} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{div}}\\ &&|& \def\mathdef3436#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3436{f64x2.min} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\\ &&|& \def\mathdef3437#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3437{f64x2.max} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\\ &&|& \def\mathdef3438#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3438{f64x2.pmin} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{pmin}}\\ &&|& \def\mathdef3439#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3439{f64x2.pmax} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{pmax}}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3440#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3440{i32x4.trunc\_sat\_f32x4\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc\_sat}}\mathsf{\_f32x4\_s}\\ &&|& \def\mathdef3441#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3441{i32x4.trunc\_sat\_f32x4\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc\_sat}}\mathsf{\_f32x4\_u}\\ &&|& \def\mathdef3442#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3442{i32x4.trunc\_sat\_f64x2\_s\_zero} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc\_sat}}\mathsf{\_f64x2\_s\_zero}\\ &&|& \def\mathdef3443#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3443{i32x4.trunc\_sat\_f64x2\_u\_zero} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc\_sat}}\mathsf{\_f64x2\_u\_zero}\\ &&|& \def\mathdef3444#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3444{f32x4.convert\_i32x4\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{convert}}\mathsf{\_i32x4\_s}\\ &&|& \def\mathdef3445#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3445{f32x4.convert\_i32x4\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{convert}}\mathsf{\_i32x4\_u}\\ &&|& \def\mathdef3446#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3446{f64x2.convert\_low\_i32x4\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{convert}}\mathsf{\_low\_i32x4\_s}\\ &&|& \def\mathdef3447#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3447{f64x2.convert\_low\_i32x4\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{convert}}\mathsf{\_low\_i32x4\_u}\\ &&|& \def\mathdef3448#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3448{f32x4.demote\_f64x2\_zero} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{demote}}\mathsf{\_f64x2\_zero}\\ &&|& \def\mathdef3449#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3449{f64x2.promote\_low\_f32x4} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{promote}}\mathsf{\_low\_f32x4}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2805#1{{}}\mathdef2805{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallyreallyreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3450#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3450{i16x8.relaxed\_swizzle} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_swizzle}} \\ &&|& \def\mathdef3451#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3451{i32x4.relaxed\_trunc\_f32x4\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_trunc}}\mathsf{\_f32x4\_s} \\ &&|& \def\mathdef3452#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3452{i32x4.relaxed\_trunc\_f32x4\_u} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_trunc}}\mathsf{\_f32x4\_u} \\ &&|& \def\mathdef3453#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3453{i32x4.relaxed\_trunc\_f32x4\_s\_zero} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_trunc}}\mathsf{\_f32x4\_s\_zero} \\ &&|& \def\mathdef3454#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3454{i32x4.relaxed\_trunc\_f32x4\_u\_zero} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_trunc}}\mathsf{\_f32x4\_u\_zero} \\ &&|& \def\mathdef3455#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3455{f32x4.relaxed\_madd} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_madd}} \\ &&|& \def\mathdef3456#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3456{f32x4.relaxed\_nmadd} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_nmadd}} \\ &&|& \def\mathdef3457#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3457{f64x2.relaxed\_madd} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_madd}} \\ &&|& \def\mathdef3458#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3458{f64x2.relaxed\_nmadd} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_nmadd}} \\ &&|& \def\mathdef3459#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3459{i8x16.relaxed\_laneselect} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle8}x\scriptstyle16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_laneselect}} \\ &&|& \def\mathdef3460#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3460{i16x8.relaxed\_laneselect} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_laneselect}} \\ &&|& \def\mathdef3461#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3461{i32x4.relaxed\_laneselect} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_laneselect}} \\ &&|& \def\mathdef3462#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3462{i64x2.relaxed\_laneselect} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_laneselect}} \\ &&|& \def\mathdef3463#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3463{f32x4.relaxed\_min} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_min}} \\ &&|& \def\mathdef3464#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3464{f32x4.relaxed\_max} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle32}x\scriptstyle4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_max}} \\ &&|& \def\mathdef3465#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3465{f64x2.relaxed\_min} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_min}} \\ &&|& \def\mathdef3466#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3466{f64x2.relaxed\_max} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{f{\scriptstyle64}x\scriptstyle2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_max}} \\ &&|& \def\mathdef3467#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3467{i16x8.relaxed\_q15mulr\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_q15mulr}}\mathsf{\_s} \\ &&|& \def\mathdef3468#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3468{i16x8.relaxed\_dot\_i8x16\_i7x16\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_dot}}\mathsf{\_i8x16\_i7x16\_s} \\ &&|& \def\mathdef3469#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3469{i16x8.relaxed\_dot\_i8x16\_i7x16\_add\_s} &\Rightarrow& \href{../syntax/instructions.html#syntax-shape}{\mathsf{i{\scriptstyle16}x\scriptstyle8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{relaxed\_dot}}\mathsf{\_i8x16\_i7x16\_add\_s} \end{array}\end{split}\]

Folded Instructions

Instructions can be written as S-expressions by grouping them into folded form. In that notation, an instruction is wrapped in parentheses and optionally includes nested folded instructions to indicate its operands.

In the case of block instructions, the folded form omits the \(\def\mathdef3470#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3470{end}\) delimiter. For \(\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{if}}\) instructions, both branches have to be wrapped into nested S-expressions, headed by the keywords \(\def\mathdef3471#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3471{then}\) and \(\def\mathdef3472#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3472{else}\).

The set of all phrases defined by the following abbreviations recursively forms the auxiliary syntactic class \(\href{../text/instructions.html#text-foldedinstr}{\mathtt{foldedinstr}}\). Such a folded instruction can appear anywhere a regular instruction can.

\[\begin{split}\begin{array}{lllll} \def\mathdef2805#1{{}}\mathdef2805{instruction} & \def\mathdef3473#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3473{(}~\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}~~\href{../text/instructions.html#text-foldedinstr}{\mathtt{foldedinstr}}^\ast~\def\mathdef3474#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3474{)} &\equiv\quad \href{../text/instructions.html#text-foldedinstr}{\mathtt{foldedinstr}}^\ast~~\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}} \\ & \def\mathdef3475#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3475{(}~\def\mathdef3476#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3476{block}~~\href{../text/instructions.html#text-label}{\mathtt{label}}~~\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}^\ast~\def\mathdef3477#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3477{)} &\equiv\quad \def\mathdef3478#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3478{block}~~\href{../text/instructions.html#text-label}{\mathtt{label}}~~\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}^\ast~~\def\mathdef3479#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3479{end} \\ & \def\mathdef3480#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3480{(}~\def\mathdef3481#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3481{loop}~~\href{../text/instructions.html#text-label}{\mathtt{label}}~~\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}^\ast~\def\mathdef3482#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3482{)} &\equiv\quad \def\mathdef3483#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3483{loop}~~\href{../text/instructions.html#text-label}{\mathtt{label}}~~\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}^\ast~~\def\mathdef3484#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3484{end} \\ & \def\mathdef3485#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3485{(}~\def\mathdef3486#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3486{if}~~\href{../text/instructions.html#text-label}{\mathtt{label}}~~\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}~~\href{../text/instructions.html#text-foldedinstr}{\mathtt{foldedinstr}}^\ast &\hspace{-3ex} \def\mathdef3487#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3487{(}~\def\mathdef3488#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3488{then}~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}_1^\ast~\def\mathdef3489#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3489{)}~~(\def\mathdef3490#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3490{(}~\def\mathdef3491#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3491{else}~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}_2^\ast~\def\mathdef3492#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3492{)})^?~~\def\mathdef3493#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3493{)} \quad\equiv \\ &\qquad \href{../text/instructions.html#text-foldedinstr}{\mathtt{foldedinstr}}^\ast~~\def\mathdef3494#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3494{if}~~\href{../text/instructions.html#text-label}{\mathtt{label}} &\hspace{-12ex} \href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}_1^\ast~~\def\mathdef3495#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3495{else}~~(\href{../text/instructions.html#text-instr}{\mathtt{instr}}_2^\ast)^?~\def\mathdef3496#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3496{end} \\ & \def\mathdef3497#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3497{(}~\def\mathdef3498#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3498{try\_table}~~\href{../text/instructions.html#text-label}{\mathtt{label}}~~\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}~~\href{../text/instructions.html#text-catch}{\mathtt{catch}}^\ast~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}^\ast~\def\mathdef3499#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3499{)} \quad\equiv \\ &\qquad \def\mathdef3500#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3500{try\_table}~~\href{../text/instructions.html#text-label}{\mathtt{label}}~~\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}~~\href{../text/instructions.html#text-catch}{\mathtt{catch}}^\ast~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}^\ast~~\def\mathdef3501#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3501{end} \\ \end{array}\end{split}\]

Note

For example, the instruction sequence

\[\mathtt{(local.get~\$x)~(i32.const~2)~i32.add~(i32.const~3)~i32.mul}\]

can be folded into

\[\mathtt{(i32.mul~(i32.add~(local.get~\$x)~(i32.const~2))~(i32.const~3))}\]

Folded instructions are solely syntactic sugar, no additional syntactic or type-based checking is implied.

Expressions

Expressions are written as instruction sequences. No explicit \(\def\mathdef3502#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3502{end}\) keyword is included, since they only occur in bracketed positions.

\[\begin{split}\begin{array}{llclll} \def\mathdef2805#1{{}}\mathdef2805{expression} & \href{../text/instructions.html#text-expr}{\mathtt{expr}}_I &::=& (\mathit{in}{:}\href{../text/instructions.html#text-instr}{\mathtt{instr}}_I)^\ast &\Rightarrow& \mathit{in}^\ast~\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}} \\ \end{array}\end{split}\]