Instructions

Instructions are syntactically distinguished into plain and structured instructions.

\[\begin{split}\begin{array}{llclll} \def\mathdef2678#1{{}}\mathdef2678{instruction} & \href{../text/instructions.html#text-instr}{\mathtt{instr}}_I &::=& \mathit{in}{:}\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &\Rightarrow& \mathit{in} \\ &&|& \mathit{in}{:}\href{../text/instructions.html#text-blockinstr}{\mathtt{blockinstr}}_I &\Rightarrow& \mathit{in} \\ \end{array}\end{split}\]

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.

\[\begin{split}\begin{array}{llcllll} \def\mathdef2678#1{{}}\mathdef2678{label} & \href{../text/instructions.html#text-label}{\mathtt{label}}_I &::=& v{:}\href{../text/values.html#text-id}{\mathtt{id}} &\Rightarrow& \{\href{../text/conventions.html#text-context}{\mathsf{labels}}~v\} \href{../syntax/conventions.html#notation-compose}{\oplus} I & (\mathrel{\mbox{if}} v \notin I.\href{../text/conventions.html#text-context}{\mathsf{labels}}) \\ &&|& \epsilon &\Rightarrow& \{\href{../text/conventions.html#text-context}{\mathsf{labels}}~(\epsilon)\} \href{../syntax/conventions.html#notation-compose}{\oplus} I \\ \end{array}\end{split}\]

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.

Control Instructions

Structured control instructions can bind an optional symbolic label identifier. The same label identifier may optionally be repeated after the corresponding \(\mathtt{end}\) and \(\mathtt{else}\) pseudo instructions, 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\mathdef2678#1{{}}\mathdef2678{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}})^? &\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\mathdef2678#1{{}}\mathdef2678{block instruction} & \href{../text/instructions.html#text-blockinstr}{\mathtt{blockinstr}}_I &::=& \def\mathdef2717#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2717{block}~~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\mathdef2718#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2718{end}~~\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}} \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\mathdef2719#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2719{loop}~~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\mathdef2720#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2720{end}~~\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}} \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\mathdef2721#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2721{if}~~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\mathdef2722#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2722{else}~~\href{../text/values.html#text-id}{\mathtt{id}}_1^?~~(\mathit{in}_2{:}\href{../text/instructions.html#text-instr}{\mathtt{instr}}_{I'})^\ast~~\def\mathdef2723#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2723{end}~~\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}} \href{../text/values.html#text-id}{\mathtt{id}}_1^? = \epsilon \vee \href{../text/values.html#text-id}{\mathtt{id}}_1^? = \href{../text/instructions.html#text-label}{\mathtt{label}}, \href{../text/values.html#text-id}{\mathtt{id}}_2^? = \epsilon \vee \href{../text/values.html#text-id}{\mathtt{id}}_2^? = \href{../text/instructions.html#text-label}{\mathtt{label}}) \\ \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\mathdef2678#1{{}}\mathdef2678{plain instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \def\mathdef2724#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2724{unreachable} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{unreachable}} \\ &&|& \def\mathdef2725#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2725{nop} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{nop}} \\ &&|& \def\mathdef2726#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2726{br}~~l{:}\href{../text/modules.html#text-labelidx}{\mathtt{labelidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br}}~l \\ &&|& \def\mathdef2727#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2727{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\mathdef2728#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2728{br\_table}~~l^\ast{:}\href{../text/conventions.html#text-vec}{\mathtt{vec}}(\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\mathdef2729#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2729{return} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{return}} \\ &&|& \def\mathdef2730#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2730{call}~~x{:}\href{../text/modules.html#text-funcidx}{\mathtt{funcidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{call}}~x \\ &&|& \def\mathdef2731#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2731{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\}) \\ \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 \(\def\mathdef2732#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2732{else}\) keyword of an \(\def\mathdef2733#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2733{if}\) instruction can be omitted if the following instruction sequence is empty.

\[\begin{array}{llclll} \def\mathdef2678#1{{}}\mathdef2678{block instruction} & \def\mathdef2734#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2734{if}~~\href{../text/instructions.html#text-label}{\mathtt{label}}~~\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}^\ast~~\def\mathdef2735#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2735{end} &\equiv& \def\mathdef2736#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2736{if}~~\href{../text/instructions.html#text-label}{\mathtt{label}}~~\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}}~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}^\ast~~\def\mathdef2737#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2737{else}~~\def\mathdef2738#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2738{end} \end{array}\]

Also, for backwards compatibility, the table index to \(\def\mathdef2739#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2739{call\_indirect}\) can be omitted, defaulting to \(0\).

\[\begin{array}{llclll} \def\mathdef2678#1{{}}\mathdef2678{plain instruction} & \def\mathdef2740#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2740{call\_indirect}~~\href{../text/modules.html#text-typeuse}{\mathtt{typeuse}} &\equiv& \def\mathdef2741#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2741{call\_indirect}~~0~~\href{../text/modules.html#text-typeuse}{\mathtt{typeuse}} \end{array}\]

Reference Instructions

\[\begin{split}\begin{array}{llclll} \def\mathdef2678#1{{}}\mathdef2678{instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \dots \\ &&|& \def\mathdef2742#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2742{ref.null}~~t{:}\href{../text/types.html#text-heaptype}{\mathtt{heaptype}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref{.}null}}~t \\ &&|& \def\mathdef2743#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2743{ref.is\_null} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref{.}is\_null}} \\ &&|& \def\mathdef2744#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2744{ref.func}~~x{:}\href{../text/modules.html#text-funcidx}{\mathtt{funcidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref{.}func}}~x \\ &&|& \end{array}\end{split}\]

Parametric Instructions

\[\begin{split}\begin{array}{llclll} \def\mathdef2678#1{{}}\mathdef2678{instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \dots \\ &&|& \def\mathdef2745#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2745{drop} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-parametric}{\mathsf{drop}} \\ &&|& \def\mathdef2746#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2746{select}~((t{:}\href{../text/types.html#text-functype}{\mathtt{result}})^\ast)^? &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-parametric}{\mathsf{select}}~(t^\ast)^? \\ \end{array}\end{split}\]

Variable Instructions

\[\begin{split}\begin{array}{llclll} \def\mathdef2678#1{{}}\mathdef2678{instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \dots \\ &&|& \def\mathdef2747#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2747{local.get}~~x{:}\href{../text/modules.html#text-localidx}{\mathtt{localidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{local.get}}~x \\ &&|& \def\mathdef2748#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2748{local.set}~~x{:}\href{../text/modules.html#text-localidx}{\mathtt{localidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{local.set}}~x \\ &&|& \def\mathdef2749#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2749{local.tee}~~x{:}\href{../text/modules.html#text-localidx}{\mathtt{localidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{local.tee}}~x \\ &&|& \def\mathdef2750#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2750{global.get}~~x{:}\href{../text/modules.html#text-globalidx}{\mathtt{globalidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{global.get}}~x \\ &&|& \def\mathdef2751#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2751{global.set}~~x{:}\href{../text/modules.html#text-globalidx}{\mathtt{globalidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{global.set}}~x \\ \end{array}\end{split}\]

Table Instructions

\[\begin{split}\begin{array}{llclll} \def\mathdef2678#1{{}}\mathdef2678{instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \dots \\ &&|& \def\mathdef2752#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2752{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\mathdef2753#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2753{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\mathdef2754#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2754{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\mathdef2755#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2755{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\mathdef2756#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2756{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\mathdef2757#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2757{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\mathdef2758#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2758{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\mathdef2759#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2759{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 \(table indices <syntax-tableidx>\) may be omitted from table instructions, defaulting to \(0\).

\[\begin{split}\begin{array}{llclll} \def\mathdef2678#1{{}}\mathdef2678{instruction} & \def\mathdef2760#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2760{table.get} &\equiv& \def\mathdef2761#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2761{table.get}~~\def\mathdef2762#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2762{0} \\ &&|& \def\mathdef2763#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2763{table.set} &\equiv& \def\mathdef2764#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2764{table.set}~~\def\mathdef2765#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2765{0} \\ &&|& \def\mathdef2766#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2766{table.size} &\equiv& \def\mathdef2767#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2767{table.size}~~\def\mathdef2768#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2768{0} \\ &&|& \def\mathdef2769#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2769{table.grow} &\equiv& \def\mathdef2770#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2770{table.grow}~~\def\mathdef2771#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2771{0} \\ &&|& \def\mathdef2772#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2772{table.fill} &\equiv& \def\mathdef2773#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2773{table.fill}~~\def\mathdef2774#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2774{0} \\ &&|& \def\mathdef2775#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2775{table.copy} &\equiv& \def\mathdef2776#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2776{table.copy}~~\def\mathdef2777#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2777{0}~~\def\mathdef2778#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2778{0} \\ &&|& \def\mathdef2779#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2779{table.init}~~x{:}\href{../text/modules.html#text-elemidx}{\mathtt{elemidx}}_I &\equiv& \def\mathdef2780#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2780{table.init}~~\def\mathdef2781#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2781{0}~~x{:}\href{../text/modules.html#text-elemidx}{\mathtt{elemidx}}_I \\ &&|& \end{array}\end{split}\]

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 \(\def\mathdef2782#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2782{=}\).

\[\begin{split}\begin{array}{llcllll} \def\mathdef2678#1{{}}\mathdef2678{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\mathdef2678#1{{}}\mathdef2678{memory offset} & \href{../text/instructions.html#text-memarg}{\mathtt{offset}} &::=& \def\mathdef2783#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2783{offset{=}}o{:}\href{../text/values.html#text-int}{\def\mathdef2703#1{{\mathtt{u}#1}}\mathdef2703{\mathtt{32}}} &\Rightarrow& o \\ &&|& \epsilon &\Rightarrow& 0 \\ \def\mathdef2678#1{{}}\mathdef2678{memory alignment} & \href{../text/instructions.html#text-memarg}{\mathtt{align}}_N &::=& \def\mathdef2784#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2784{align{=}}a{:}\href{../text/values.html#text-int}{\def\mathdef2703#1{{\mathtt{u}#1}}\mathdef2703{\mathtt{32}}} &\Rightarrow& a \\ &&|& \epsilon &\Rightarrow& N \\ \def\mathdef2678#1{{}}\mathdef2678{instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \dots \\ &&|& \def\mathdef2785#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2785{i32.load}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~m \\ &&|& \def\mathdef2786#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2786{i64.load}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~m \\ &&|& \def\mathdef2787#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2787{f32.load}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~m \\ &&|& \def\mathdef2788#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2788{f64.load}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~m \\ &&|& \def\mathdef2789#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2789{i32.load8\_s}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_s}~m \\ &&|& \def\mathdef2790#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2790{i32.load8\_u}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_u}~m \\ &&|& \def\mathdef2791#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2791{i32.load16\_s}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_s}~m \\ &&|& \def\mathdef2792#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2792{i32.load16\_u}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_u}~m \\ &&|& \def\mathdef2793#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2793{i64.load8\_s}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_s}~m \\ &&|& \def\mathdef2794#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2794{i64.load8\_u}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_u}~m \\ &&|& \def\mathdef2795#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2795{i64.load16\_s}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_s}~m \\ &&|& \def\mathdef2796#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2796{i64.load16\_u}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_u}~m \\ &&|& \def\mathdef2797#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2797{i64.load32\_s}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_s}~m \\ &&|& \def\mathdef2798#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2798{i64.load32\_u}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_u}~m \\ &&|& \def\mathdef2799#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2799{i32.store}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~m \\ &&|& \def\mathdef2800#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2800{i64.store}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~m \\ &&|& \def\mathdef2801#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2801{f32.store}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~m \\ &&|& \def\mathdef2802#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2802{f64.store}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~m \\ &&|& \def\mathdef2803#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2803{i32.store8}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{8}~m \\ &&|& \def\mathdef2804#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2804{i32.store16}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{16}~m \\ &&|& \def\mathdef2805#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2805{i64.store8}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{8}~m \\ &&|& \def\mathdef2806#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2806{i64.store16}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{16}~m \\ &&|& \def\mathdef2807#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2807{i64.store32}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{32}~m \\ &&|& \def\mathdef2808#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2808{memory.size} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.size}} \\ &&|& \def\mathdef2809#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2809{memory.grow} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.grow}} \\ &&|& \def\mathdef2810#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2810{memory.fill} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.fill}} \\ &&|& \def\mathdef2811#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2811{memory.copy} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.copy}} \\ &&|& \def\mathdef2812#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2812{memory.init}~~x{:}\href{../text/modules.html#text-dataidx}{\mathtt{dataidx}}_I &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.init}}~x \\ &&|& \def\mathdef2813#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2813{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}\]

Numeric Instructions

\[\begin{split}\begin{array}{llclll} \def\mathdef2678#1{{}}\mathdef2678{instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \dots \\&&|& \def\mathdef2814#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2814{i32.const}~~n{:}\href{../text/values.html#text-int}{\def\mathdef2711#1{{\mathtt{i}#1}}\mathdef2711{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~n \\ &&|& \def\mathdef2815#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2815{i64.const}~~n{:}\href{../text/values.html#text-int}{\def\mathdef2712#1{{\mathtt{i}#1}}\mathdef2712{\mathtt{64}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~n \\ &&|& \def\mathdef2816#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2816{f32.const}~~z{:}\href{../text/values.html#text-float}{\def\mathdef2715#1{{\mathtt{f}#1}}\mathdef2715{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~z \\ &&|& \def\mathdef2817#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2817{f64.const}~~z{:}\href{../text/values.html#text-float}{\def\mathdef2716#1{{\mathtt{f}#1}}\mathdef2716{\mathtt{64}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~z \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef2818#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2818{i32.clz} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{clz}} \\ &&|& \def\mathdef2819#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2819{i32.ctz} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ctz}} \\ &&|& \def\mathdef2820#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2820{i32.popcnt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{popcnt}} \\ &&|& \def\mathdef2821#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2821{i32.add} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef2822#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2822{i32.sub} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef2823#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2823{i32.mul} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef2824#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2824{i32.div\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_s} \\ &&|& \def\mathdef2825#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2825{i32.div\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_u} \\ &&|& \def\mathdef2826#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2826{i32.rem\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_s} \\ &&|& \def\mathdef2827#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2827{i32.rem\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_u} \\ &&|& \def\mathdef2828#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2828{i32.and} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{and}} \\ &&|& \def\mathdef2829#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2829{i32.or} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{or}} \\ &&|& \def\mathdef2830#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2830{i32.xor} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{xor}} \\ &&|& \def\mathdef2831#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2831{i32.shl} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shl}} \\ &&|& \def\mathdef2832#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2832{i32.shr\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef2833#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2833{i32.shr\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef2834#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2834{i32.rotl} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rotl}} \\ &&|& \def\mathdef2835#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2835{i32.rotr} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rotr}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef2836#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2836{i64.clz} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{clz}} \\ &&|& \def\mathdef2837#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2837{i64.ctz} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ctz}} \\ &&|& \def\mathdef2838#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2838{i64.popcnt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{popcnt}} \\ &&|& \def\mathdef2839#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2839{i64.add} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef2840#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2840{i64.sub} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef2841#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2841{i64.mul} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef2842#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2842{i64.div\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_s} \\ &&|& \def\mathdef2843#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2843{i64.div\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_u} \\ &&|& \def\mathdef2844#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2844{i64.rem\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_s} \\ &&|& \def\mathdef2845#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2845{i64.rem\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_u} \\ &&|& \def\mathdef2846#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2846{i64.and} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{and}} \\ &&|& \def\mathdef2847#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2847{i64.or} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{or}} \\ &&|& \def\mathdef2848#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2848{i64.xor} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{xor}} \\ &&|& \def\mathdef2849#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2849{i64.shl} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shl}} \\ &&|& \def\mathdef2850#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2850{i64.shr\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef2851#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2851{i64.shr\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef2852#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2852{i64.rotl} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rotl}} \\ &&|& \def\mathdef2853#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2853{i64.rotr} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rotr}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef2854#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2854{f32.abs} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{abs}} \\ &&|& \def\mathdef2855#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2855{f32.neg} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{neg}} \\ &&|& \def\mathdef2856#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2856{f32.ceil} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ceil}} \\ &&|& \def\mathdef2857#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2857{f32.floor} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{floor}} \\ &&|& \def\mathdef2858#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2858{f32.trunc} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}} \\ &&|& \def\mathdef2859#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2859{f32.nearest} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{nearest}} \\ &&|& \def\mathdef2860#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2860{f32.sqrt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sqrt}} \\ &&|& \def\mathdef2861#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2861{f32.add} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef2862#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2862{f32.sub} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef2863#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2863{f32.mul} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef2864#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2864{f32.div} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}} \\ &&|& \def\mathdef2865#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2865{f32.min} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{min}} \\ &&|& \def\mathdef2866#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2866{f32.max} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{max}} \\ &&|& \def\mathdef2867#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2867{f32.copysign} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{copysign}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef2868#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2868{f64.abs} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{abs}} \\ &&|& \def\mathdef2869#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2869{f64.neg} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{neg}} \\ &&|& \def\mathdef2870#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2870{f64.ceil} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ceil}} \\ &&|& \def\mathdef2871#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2871{f64.floor} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{floor}} \\ &&|& \def\mathdef2872#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2872{f64.trunc} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}} \\ &&|& \def\mathdef2873#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2873{f64.nearest} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{nearest}} \\ &&|& \def\mathdef2874#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2874{f64.sqrt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sqrt}} \\ &&|& \def\mathdef2875#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2875{f64.add} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef2876#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2876{f64.sub} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef2877#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2877{f64.mul} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef2878#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2878{f64.div} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}} \\ &&|& \def\mathdef2879#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2879{f64.min} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{min}} \\ &&|& \def\mathdef2880#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2880{f64.max} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{max}} \\ &&|& \def\mathdef2881#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2881{f64.copysign} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{copysign}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef2882#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2882{i32.eqz} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eqz}} \\ &&|& \def\mathdef2883#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2883{i32.eq} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef2884#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2884{i32.ne} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef2885#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2885{i32.lt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef2886#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2886{i32.lt\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_u} \\ &&|& \def\mathdef2887#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2887{i32.gt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef2888#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2888{i32.gt\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_u} \\ &&|& \def\mathdef2889#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2889{i32.le\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef2890#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2890{i32.le\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_u} \\ &&|& \def\mathdef2891#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2891{i32.ge\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}}\mathsf{\_s} \\ &&|& \def\mathdef2892#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2892{i32.ge\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}}\mathsf{\_u} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef2893#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2893{i64.eqz} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eqz}} \\ &&|& \def\mathdef2894#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2894{i64.eq} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef2895#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2895{i64.ne} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef2896#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2896{i64.lt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef2897#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2897{i64.lt\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_u} \\ &&|& \def\mathdef2898#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2898{i64.gt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef2899#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2899{i64.gt\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_u} \\ &&|& \def\mathdef2900#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2900{i64.le\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef2901#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2901{i64.le\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_u} \\ &&|& \def\mathdef2902#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2902{i64.ge\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}}\mathsf{\_s} \\ &&|& \def\mathdef2903#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2903{i64.ge\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}}\mathsf{\_u} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef2904#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2904{f32.eq} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef2905#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2905{f32.ne} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef2906#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2906{f32.lt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}} \\ &&|& \def\mathdef2907#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2907{f32.gt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}} \\ &&|& \def\mathdef2908#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2908{f32.le} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}} \\ &&|& \def\mathdef2909#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2909{f32.ge} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef2910#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2910{f64.eq} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef2911#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2911{f64.ne} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef2912#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2912{f64.lt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}} \\ &&|& \def\mathdef2913#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2913{f64.gt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}} \\ &&|& \def\mathdef2914#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2914{f64.le} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}} \\ &&|& \def\mathdef2915#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2915{f64.ge} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef2916#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2916{i32.wrap\_i64} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{wrap}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{i64}} \\ &&|& \def\mathdef2917#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2917{i32.trunc\_f32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}\mathsf{\_s} \\ &&|& \def\mathdef2918#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2918{i32.trunc\_f32\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}\mathsf{\_u} \\ &&|& \def\mathdef2919#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2919{i32.trunc\_f64\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}\mathsf{\_s} \\ &&|& \def\mathdef2920#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2920{i32.trunc\_f64\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}\mathsf{\_u} \\ &&|& \def\mathdef2921#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2921{i32.trunc\_sat\_f32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}\mathsf{\_s} \\ &&|& \def\mathdef2922#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2922{i32.trunc\_sat\_f32\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}\mathsf{\_u} \\ &&|& \def\mathdef2923#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2923{i32.trunc\_sat\_f64\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}\mathsf{\_s} \\ &&|& \def\mathdef2924#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2924{i32.trunc\_sat\_f64\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}\mathsf{\_u} \\ &&|& \def\mathdef2925#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2925{i64.extend\_i32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}\mathsf{\_s} \\ &&|& \def\mathdef2926#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2926{i64.extend\_i32\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}\mathsf{\_u} \\ &&|& \def\mathdef2927#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2927{i64.trunc\_f32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}\mathsf{\_s} \\ &&|& \def\mathdef2928#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2928{i64.trunc\_f32\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}\mathsf{\_u} \\ &&|& \def\mathdef2929#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2929{i64.trunc\_f64\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}\mathsf{\_s} \\ &&|& \def\mathdef2930#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2930{i64.trunc\_f64\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}\mathsf{\_u} \\ &&|& \def\mathdef2931#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2931{i64.trunc\_sat\_f32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}\mathsf{\_s} \\ &&|& \def\mathdef2932#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2932{i64.trunc\_sat\_f32\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}\mathsf{\_u} \\ &&|& \def\mathdef2933#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2933{i64.trunc\_sat\_f64\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}\mathsf{\_s} \\ &&|& \def\mathdef2934#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2934{i64.trunc\_sat\_f64\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}\mathsf{\_u} \\ &&|& \def\mathdef2935#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2935{f32.convert\_i32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}\mathsf{\_s} \\ &&|& \def\mathdef2936#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2936{f32.convert\_i32\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}\mathsf{\_u} \\ &&|& \def\mathdef2937#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2937{f32.convert\_i64\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}\mathsf{\_s} \\ &&|& \def\mathdef2938#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2938{f32.convert\_i64\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}\mathsf{\_u} \\ &&|& \def\mathdef2939#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2939{f32.demote\_f64} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{demote}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f64}} \\ &&|& \def\mathdef2940#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2940{f64.convert\_i32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}\mathsf{\_s} \\ &&|& \def\mathdef2941#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2941{f64.convert\_i32\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}\mathsf{\_u} \\ &&|& \def\mathdef2942#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2942{f64.convert\_i64\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}\mathsf{\_s} \\ &&|& \def\mathdef2943#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2943{f64.convert\_i64\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}\mathsf{\_u} \\ &&|& \def\mathdef2944#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2944{f64.promote\_f32} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{promote}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f32}} \\ &&|& \def\mathdef2945#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2945{i32.reinterpret\_f32} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{reinterpret}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f32}} \\ &&|& \def\mathdef2946#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2946{i64.reinterpret\_f64} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{reinterpret}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{f64}} \\ &&|& \def\mathdef2947#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2947{f32.reinterpret\_i32} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{reinterpret}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{i32}} \\ &&|& \def\mathdef2948#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2948{f64.reinterpret\_i64} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{reinterpret}}\mathsf{\_}\href{../syntax/types.html#syntax-valtype}{\mathsf{i64}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{thisisenough} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef2949#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2949{i32.extend8\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{8\_s} \\ &&|& \def\mathdef2950#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2950{i32.extend16\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{16\_s} \\ &&|& \def\mathdef2951#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2951{i64.extend8\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{8\_s} \\ &&|& \def\mathdef2952#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2952{i64.extend16\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{16\_s} \\ &&|& \def\mathdef2953#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2953{i64.extend32\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{32\_s} \\ \end{array}\end{split}\]

Vector Instructions

Vector memory instructions have optional offset and alignment immediates, like the memory instructions.

\[\begin{split}\begin{array}{llclll} \def\mathdef2678#1{{}}\mathdef2678{instruction} & \href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I &::=& \dots \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\ &&|& \def\mathdef2954#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2954{v128.load}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_{16} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~m \\ &&|& \def\mathdef2955#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2955{v128.load8x8\_s}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8x8\_s}~m \\ &&|& \def\mathdef2956#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2956{v128.load8x8\_u}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8x8\_u}~m \\ &&|& \def\mathdef2957#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2957{v128.load16x4\_s}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16x4\_s}~m \\ &&|& \def\mathdef2958#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2958{v128.load16x4\_u}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16x4\_u}~m \\ &&|& \def\mathdef2959#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2959{v128.load32x2\_s}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32x2\_s}~m \\ &&|& \def\mathdef2960#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2960{v128.load32x2\_u}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32x2\_u}~m \\ &&|& \def\mathdef2961#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2961{v128.load8\_splat}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_splat}~m \\ &&|& \def\mathdef2962#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2962{v128.load16\_splat}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_splat}~m \\ &&|& \def\mathdef2963#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2963{v128.load32\_splat}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_splat}~m \\ &&|& \def\mathdef2964#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2964{v128.load64\_splat}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{64\_splat}~m \\ &&|& \def\mathdef2965#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2965{v128.load32\_zero}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_zero}~m \\ &&|& \def\mathdef2966#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2966{v128.load64\_zero}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8 &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{64\_zero}~m \\ &&|& \def\mathdef2967#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2967{v128.store}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_{16} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~m \\ &&|& \def\mathdef2968#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2968{v128.load8\_lane}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_lane}~m~laneidx \\ &&|& \def\mathdef2969#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2969{v128.load16\_lane}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_lane}~m~laneidx \\ &&|& \def\mathdef2970#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2970{v128.load32\_lane}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_lane}~m~laneidx \\ &&|& \def\mathdef2971#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2971{v128.load64\_lane}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{64\_lane}~m~laneidx \\ &&|& \def\mathdef2972#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2972{v128.store8\_lane}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_1~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{8\_lane}~m~laneidx \\ &&|& \def\mathdef2973#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2973{v128.store16\_lane}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_2~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{16\_lane}~m~laneidx \\ &&|& \def\mathdef2974#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2974{v128.store32\_lane}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_4~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{32\_lane}~m~laneidx \\ &&|& \def\mathdef2975#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2975{v128.store64\_lane}~~m{:}\href{../text/instructions.html#text-memarg}{\mathtt{memarg}}_8~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{64\_lane}~m~laneidx \\ \end{array}\end{split}\]

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

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef2976#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2976{v128.const}~~\def\mathdef2977#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2977{i8x16}~~(n{:}\href{../text/values.html#text-int}{\def\mathdef2709#1{{\mathtt{i}#1}}\mathdef2709{\mathtt{8}}})^{16} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\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\mathdef2978#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2978{v128.const}~~\def\mathdef2979#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2979{i16x8}~~(n{:}\href{../text/values.html#text-int}{\def\mathdef2710#1{{\mathtt{i}#1}}\mathdef2710{\mathtt{16}}})^{8} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\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\mathdef2980#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2980{v128.const}~~\def\mathdef2981#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2981{i32x4}~~(n{:}\href{../text/values.html#text-int}{\def\mathdef2711#1{{\mathtt{i}#1}}\mathdef2711{\mathtt{32}}})^{4} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\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\mathdef2982#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2982{v128.const}~~\def\mathdef2983#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2983{i64x2}~~(n{:}\href{../text/values.html#text-int}{\def\mathdef2712#1{{\mathtt{i}#1}}\mathdef2712{\mathtt{64}}})^{2} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\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\mathdef2984#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2984{v128.const}~~\def\mathdef2985#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2985{f32x4}~~(z{:}\href{../text/values.html#text-float}{\def\mathdef2715#1{{\mathtt{f}#1}}\mathdef2715{\mathtt{32}}})^{4} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\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\mathdef2986#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2986{v128.const}~~\def\mathdef2987#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2987{f64x2}~~(z{:}\href{../text/values.html#text-float}{\def\mathdef2716#1{{\mathtt{f}#1}}\mathdef2716{\mathtt{64}}})^{2} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\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}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef2988#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2988{i8x16.shuffle}~~(laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}})^{16} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shuffle}}~laneidx^{16} \\ &&|& \def\mathdef2989#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2989{i8x16.swizzle} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{swizzle}} \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef2990#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2990{i8x16.splat} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}}\\ &&|& \def\mathdef2991#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2991{i16x8.splat} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}}\\ &&|& \def\mathdef2992#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2992{i32x4.splat} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}}\\ &&|& \def\mathdef2993#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2993{i64x2.splat} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}}\\ &&|& \def\mathdef2994#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2994{f32x4.splat} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}}\\ &&|& \def\mathdef2995#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2995{f64x2.splat} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef2996#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2996{i8x16.extract\_lane\_s}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_s}~laneidx \\ &&|& \def\mathdef2997#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2997{i8x16.extract\_lane\_u}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_u}~laneidx \\ &&|& \def\mathdef2998#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2998{i8x16.replace\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~laneidx \\ &&|& \def\mathdef2999#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef2999{i16x8.extract\_lane\_s}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_s}~laneidx \\ &&|& \def\mathdef3000#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3000{i16x8.extract\_lane\_u}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_u}~laneidx \\ &&|& \def\mathdef3001#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3001{i16x8.replace\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~laneidx \\ &&|& \def\mathdef3002#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3002{i32x4.extract\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~laneidx \\ &&|& \def\mathdef3003#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3003{i32x4.replace\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~laneidx \\ &&|& \def\mathdef3004#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3004{i64x2.extract\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~laneidx \\ &&|& \def\mathdef3005#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3005{i64x2.replace\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~laneidx \\ &&|& \def\mathdef3006#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3006{f32x4.extract\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~laneidx \\ &&|& \def\mathdef3007#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3007{f32x4.replace\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~laneidx \\ &&|& \def\mathdef3008#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3008{f64x2.extract\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~laneidx \\ &&|& \def\mathdef3009#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3009{f64x2.replace\_lane}~~laneidx{:}\href{../text/values.html#text-int}{\def\mathdef2701#1{{\mathtt{u}#1}}\mathdef2701{\mathtt{8}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~laneidx \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3010#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3010{i8x16.eq} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}}\\ &&|& \def\mathdef3011#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3011{i8x16.ne} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}}\\ &&|& \def\mathdef3012#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3012{i8x16.lt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s}\\ &&|& \def\mathdef3013#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3013{i8x16.lt\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_u}\\ &&|& \def\mathdef3014#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3014{i8x16.gt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s}\\ &&|& \def\mathdef3015#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3015{i8x16.gt\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_u}\\ &&|& \def\mathdef3016#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3016{i8x16.le\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s}\\ &&|& \def\mathdef3017#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3017{i8x16.le\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_u}\\ &&|& \def\mathdef3018#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3018{i8x16.ge\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_s}\\ &&|& \def\mathdef3019#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3019{i8x16.ge\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_u}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3020#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3020{i16x8.eq} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}}\\ &&|& \def\mathdef3021#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3021{i16x8.ne} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}}\\ &&|& \def\mathdef3022#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3022{i16x8.lt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s}\\ &&|& \def\mathdef3023#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3023{i16x8.lt\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_u}\\ &&|& \def\mathdef3024#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3024{i16x8.gt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s}\\ &&|& \def\mathdef3025#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3025{i16x8.gt\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_u}\\ &&|& \def\mathdef3026#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3026{i16x8.le\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s}\\ &&|& \def\mathdef3027#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3027{i16x8.le\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_u}\\ &&|& \def\mathdef3028#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3028{i16x8.ge\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_s}\\ &&|& \def\mathdef3029#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3029{i16x8.ge\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_u}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3030#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3030{i32x4.eq} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}}\\ &&|& \def\mathdef3031#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3031{i32x4.ne} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}}\\ &&|& \def\mathdef3032#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3032{i32x4.lt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s}\\ &&|& \def\mathdef3033#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3033{i32x4.lt\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_u}\\ &&|& \def\mathdef3034#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3034{i32x4.gt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s}\\ &&|& \def\mathdef3035#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3035{i32x4.gt\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_u}\\ &&|& \def\mathdef3036#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3036{i32x4.le\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s}\\ &&|& \def\mathdef3037#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3037{i32x4.le\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_u}\\ &&|& \def\mathdef3038#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3038{i32x4.ge\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_s}\\ &&|& \def\mathdef3039#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3039{i32x4.ge\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_u}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3040#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3040{i64x2.eq} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}}\\ &&|& \def\mathdef3041#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3041{i64x2.ne} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}}\\ &&|& \def\mathdef3042#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3042{i64x2.lt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s}\\ &&|& \def\mathdef3043#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3043{i64x2.gt\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s}\\ &&|& \def\mathdef3044#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3044{i64x2.le\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s}\\ &&|& \def\mathdef3045#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3045{i64x2.ge\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_s}\\ &&|& \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3046#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3046{f32x4.eq} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}}\\ &&|& \def\mathdef3047#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3047{f32x4.ne} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}}\\ &&|& \def\mathdef3048#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3048{f32x4.lt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\\ &&|& \def\mathdef3049#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3049{f32x4.gt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\\ &&|& \def\mathdef3050#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3050{f32x4.le} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\\ &&|& \def\mathdef3051#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3051{f32x4.ge} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3052#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3052{f64x2.eq} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}}\\ &&|& \def\mathdef3053#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3053{f64x2.ne} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}}\\ &&|& \def\mathdef3054#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3054{f64x2.lt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\\ &&|& \def\mathdef3055#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3055{f64x2.gt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\\ &&|& \def\mathdef3056#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3056{f64x2.le} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\\ &&|& \def\mathdef3057#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3057{f64x2.ge} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3058#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3058{v128.not} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{not}}\\ &&|& \def\mathdef3059#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3059{v128.and} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{and}}\\ &&|& \def\mathdef3060#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3060{v128.andnot} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{andnot}}\\ &&|& \def\mathdef3061#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3061{v128.or} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{or}}\\ &&|& \def\mathdef3062#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3062{v128.xor} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{xor}}\\ &&|& \def\mathdef3063#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3063{v128.bitselect} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitselect}}\\ &&|& \def\mathdef3064#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3064{v128.any\_true} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{any\_true}} \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3065#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3065{i8x16.abs} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}}\\ &&|& \def\mathdef3066#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3066{i8x16.neg} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}}\\ &&|& \def\mathdef3067#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3067{i8x16.all\_true} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}}\\ &&|& \def\mathdef3068#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3068{i8x16.bitmask} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}}\\ &&|& \def\mathdef3069#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3069{i8x16.narrow\_i16x8\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i16x8\_s}\\ &&|& \def\mathdef3070#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3070{i8x16.narrow\_i16x8\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i16x8\_u}\\ &&|& \def\mathdef3071#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3071{i8x16.shl} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}}\\ &&|& \def\mathdef3072#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3072{i8x16.shr\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s}\\ &&|& \def\mathdef3073#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3073{i8x16.shr\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u}\\ &&|& \def\mathdef3074#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3074{i8x16.add} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\\ &&|& \def\mathdef3075#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3075{i8x16.add\_sat\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\mathsf{\_sat\_s}\\ &&|& \def\mathdef3076#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3076{i8x16.add\_sat\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\mathsf{\_sat\_u}\\ &&|& \def\mathdef3077#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3077{i8x16.sub} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\\ &&|& \def\mathdef3078#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3078{i8x16.sub\_sat\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\mathsf{\_sat\_s}\\ &&|& \def\mathdef3079#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3079{i8x16.sub\_sat\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\mathsf{\_sat\_u}\\ &&|& \def\mathdef3080#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3080{i8x16.min\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_s}\\ &&|& \def\mathdef3081#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3081{i8x16.min\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_u}\\ &&|& \def\mathdef3082#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3082{i8x16.max\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_s}\\ &&|& \def\mathdef3083#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3083{i8x16.max\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_u}\\ &&|& \def\mathdef3084#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3084{i8x16.avgr\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{avgr}}\mathsf{\_u}\\ &&|& \def\mathdef3085#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3085{i8x16.popcnt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{popcnt}}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3086#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3086{i16x8.abs} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}}\\ &&|& \def\mathdef3087#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3087{i16x8.neg} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}}\\ &&|& \def\mathdef3088#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3088{i16x8.all\_true} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}}\\ &&|& \def\mathdef3089#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3089{i16x8.bitmask} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}}\\ &&|& \def\mathdef3090#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3090{i16x8.narrow\_i32x4\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i32x4\_s}\\ &&|& \def\mathdef3091#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3091{i16x8.narrow\_i32x4\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i32x4\_u}\\ &&|& \def\mathdef3092#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3092{i16x8.extend\_low\_i8x16\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i8x16\_s}\\ &&|& \def\mathdef3093#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3093{i16x8.extend\_high\_i8x16\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i8x16\_s}\\ &&|& \def\mathdef3094#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3094{i16x8.extend\_low\_i8x16\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i8x16\_u}\\ &&|& \def\mathdef3095#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3095{i16x8.extend\_high\_i8x16\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i8x16\_u}\\ &&|& \def\mathdef3096#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3096{i16x8.shl} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}}\\ &&|& \def\mathdef3097#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3097{i16x8.shr\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s}\\ &&|& \def\mathdef3098#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3098{i16x8.shr\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u}\\ &&|& \def\mathdef3099#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3099{i16x8.add} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\\ &&|& \def\mathdef3100#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3100{i16x8.add\_sat\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\mathsf{\_sat\_s}\\ &&|& \def\mathdef3101#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3101{i16x8.add\_sat\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\mathsf{\_sat\_u}\\ &&|& \def\mathdef3102#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3102{i16x8.sub} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\\ &&|& \def\mathdef3103#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3103{i16x8.sub\_sat\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\mathsf{\_sat\_s}\\ &&|& \def\mathdef3104#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3104{i16x8.sub\_sat\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\mathsf{\_sat\_u}\\ &&|& \def\mathdef3105#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3105{i16x8.mul} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}}\\ &&|& \def\mathdef3106#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3106{i16x8.min\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_s}\\ &&|& \def\mathdef3107#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3107{i16x8.min\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_u}\\ &&|& \def\mathdef3108#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3108{i16x8.max\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_s}\\ &&|& \def\mathdef3109#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3109{i16x8.max\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_u}\\ &&|& \def\mathdef3110#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3110{i16x8.avgr\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{avgr}}\mathsf{\_u}\\ &&|& \def\mathdef3111#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3111{i16x8.q15mulr\_sat\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{q15mulr\_sat}}\mathsf{\_s}\\ &&|& \def\mathdef3112#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3112{i16x8.extmul\_low\_i8x16\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i8x16\_s}\\ &&|& \def\mathdef3113#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3113{i16x8.extmul\_high\_i8x16\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i8x16\_s}\\ &&|& \def\mathdef3114#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3114{i16x8.extmul\_low\_i8x16\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i8x16\_u}\\ &&|& \def\mathdef3115#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3115{i16x8.extmul\_high\_i8x16\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i8x16\_u}\\ &&|& \def\mathdef3116#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3116{i16x8.extadd\_pairwise\_i8x16\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extadd\_pairwise}}\mathsf{\_i8x16\_s}\\ &&|& \def\mathdef3117#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3117{i16x8.extadd\_pairwise\_i8x16\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extadd\_pairwise}}\mathsf{\_i8x16\_u}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3118#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3118{i32x4.abs} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}}\\ &&|& \def\mathdef3119#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3119{i32x4.neg} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}}\\ &&|& \def\mathdef3120#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3120{i32x4.all\_true} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}}\\ &&|& \def\mathdef3121#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3121{i32x4.bitmask} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}}\\ &&|& \def\mathdef3122#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3122{i32x4.extadd\_pairwise\_i16x8\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extadd\_pairwise}}\mathsf{\_i16x8\_s}\\ &&|& \def\mathdef3123#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3123{i32x4.extend\_low\_i16x8\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i16x8\_s}\\ &&|& \def\mathdef3124#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3124{i32x4.extend\_high\_i16x8\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i16x8\_s}\\ &&|& \def\mathdef3125#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3125{i32x4.extend\_low\_i16x8\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i16x8\_u}\\ &&|& \def\mathdef3126#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3126{i32x4.extend\_high\_i16x8\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i16x8\_u}\\ &&|& \def\mathdef3127#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3127{i32x4.shl} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}}\\ &&|& \def\mathdef3128#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3128{i32x4.shr\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s}\\ &&|& \def\mathdef3129#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3129{i32x4.shr\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u}\\ &&|& \def\mathdef3130#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3130{i32x4.add} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\\ &&|& \def\mathdef3131#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3131{i32x4.sub} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\\ &&|& \def\mathdef3132#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3132{i32x4.mul} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}}\\ &&|& \def\mathdef3133#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3133{i32x4.min\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_s}\\ &&|& \def\mathdef3134#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3134{i32x4.min\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_u}\\ &&|& \def\mathdef3135#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3135{i32x4.max\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_s}\\ &&|& \def\mathdef3136#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3136{i32x4.max\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_u}\\ &&|& \def\mathdef3137#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3137{i32x4.dot\_i16x8\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{dot}}\mathsf{\_i16x8\_s}\\ &&|& \def\mathdef3138#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3138{i32x4.extmul\_low\_i16x8\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i16x8\_s}\\ &&|& \def\mathdef3139#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3139{i32x4.extmul\_high\_i16x8\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i16x8\_s}\\ &&|& \def\mathdef3140#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3140{i32x4.extmul\_low\_i16x8\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i16x8\_u}\\ &&|& \def\mathdef3141#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3141{i32x4.extmul\_high\_i16x8\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i16x8\_u}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3142#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3142{i64x2.abs} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}}\\ &&|& \def\mathdef3143#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3143{i64x2.neg} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}}\\ &&|& \def\mathdef3144#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3144{i64x2.all\_true} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}}\\ &&|& \def\mathdef3145#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3145{i64x2.bitmask} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}}\\ &&|& \def\mathdef3146#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3146{i64x2.extend\_low\_i32x4\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i32x4\_s} \\ &&|& \def\mathdef3147#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3147{i64x2.extend\_high\_i32x4\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i32x4\_s} \\ &&|& \def\mathdef3148#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3148{i64x2.extend\_low\_i32x4\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i32x4\_u} \\ &&|& \def\mathdef3149#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3149{i64x2.extend\_high\_i32x4\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i32x4\_u} \\ &&|& \def\mathdef3150#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3150{i64x2.shl} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}}\\ &&|& \def\mathdef3151#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3151{i64x2.shr\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s}\\ &&|& \def\mathdef3152#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3152{i64x2.shr\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u}\\ &&|& \def\mathdef3153#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3153{i64x2.add} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\\ &&|& \def\mathdef3154#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3154{i64x2.sub} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\\ &&|& \def\mathdef3155#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3155{i64x2.mul} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}}\\ &&|& \def\mathdef3156#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3156{i64x2.extmul\_low\_i32x4\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i32x4\_s}\\ &&|& \def\mathdef3157#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3157{i64x2.extmul\_high\_i32x4\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i32x4\_s}\\ &&|& \def\mathdef3158#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3158{i64x2.extmul\_low\_i32x4\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i32x4\_u}\\ &&|& \def\mathdef3159#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3159{i64x2.extmul\_high\_i32x4\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i32x4\_u}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3160#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3160{f32x4.abs} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}}\\ &&|& \def\mathdef3161#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3161{f32x4.neg} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}}\\ &&|& \def\mathdef3162#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3162{f32x4.sqrt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sqrt}}\\ &&|& \def\mathdef3163#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3163{f32x4.add} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\\ &&|& \def\mathdef3164#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3164{f32x4.sub} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\\ &&|& \def\mathdef3165#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3165{f32x4.mul} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}}\\ &&|& \def\mathdef3166#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3166{f32x4.div} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{div}}\\ &&|& \def\mathdef3167#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3167{f32x4.min} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\\ &&|& \def\mathdef3168#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3168{f32x4.max} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\\ &&|& \def\mathdef3169#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3169{f32x4.pmin} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{pmin}}\\ &&|& \def\mathdef3170#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3170{f32x4.pmax} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{pmax}}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3171#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3171{f64x2.abs} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}}\\ &&|& \def\mathdef3172#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3172{f64x2.neg} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}}\\ &&|& \def\mathdef3173#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3173{f64x2.sqrt} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sqrt}}\\ &&|& \def\mathdef3174#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3174{f64x2.add} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\\ &&|& \def\mathdef3175#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3175{f64x2.sub} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\\ &&|& \def\mathdef3176#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3176{f64x2.mul} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}}\\ &&|& \def\mathdef3177#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3177{f64x2.div} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{div}}\\ &&|& \def\mathdef3178#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3178{f64x2.min} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\\ &&|& \def\mathdef3179#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3179{f64x2.max} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\\ &&|& \def\mathdef3180#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3180{f64x2.pmin} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{pmin}}\\ &&|& \def\mathdef3181#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3181{f64x2.pmax} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{pmax}}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef2678#1{{}}\mathdef2678{instruction}} & \phantom{\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}_I} &\phantom{::=}& \phantom{averylonginstructionnameforvectext} && \phantom{vechasreallylonginstructionnames} \\[-2ex] &&|& \def\mathdef3182#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3182{i32x4.trunc\_sat\_f32x4\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc}}\mathsf{\_sat\_f32x4\_s}\\ &&|& \def\mathdef3183#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3183{i32x4.trunc\_sat\_f32x4\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc}}\mathsf{\_sat\_f32x4\_u}\\ &&|& \def\mathdef3184#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3184{i32x4.trunc\_sat\_f64x2\_s\_zero} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc}}\mathsf{\_sat\_f64x2\_s\_zero}\\ &&|& \def\mathdef3185#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3185{i32x4.trunc\_sat\_f64x2\_u\_zero} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc}}\mathsf{\_sat\_f64x2\_u\_zero}\\ &&|& \def\mathdef3186#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3186{f32x4.convert\_i32x4\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_i32x4\_s}\\ &&|& \def\mathdef3187#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3187{f32x4.convert\_i32x4\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_i32x4\_u}\\ &&|& \def\mathdef3188#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3188{f64x2.convert\_low\_i32x4\_s} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{convert}}\mathsf{\_low\_i32x4\_s}\\ &&|& \def\mathdef3189#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3189{f64x2.convert\_low\_i32x4\_u} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{convert}}\mathsf{\_low\_i32x4\_u}\\ &&|& \def\mathdef3190#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3190{f32x4.demote\_f64x2\_zero} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{demote}}\mathsf{\_f64x2\_zero}\\ &&|& \def\mathdef3191#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3191{f64x2.promote\_low\_f32x4} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{promote}}\mathsf{\_low\_f32x4}\\ &&|& \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 \(\def\mathdef3192#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3192{end}\) 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 \(\def\mathdef3193#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3193{then}\) and \(\def\mathdef3194#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3194{else}\).

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\mathdef2678#1{{}}\mathdef2678{instruction} & \def\mathdef3195#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3195{(}~\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}}~~\href{../text/instructions.html#text-foldedinstr}{\mathtt{foldedinstr}}^\ast~\def\mathdef3196#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3196{)} &\equiv\quad \href{../text/instructions.html#text-foldedinstr}{\mathtt{foldedinstr}}^\ast~~\href{../text/instructions.html#text-plaininstr}{\mathtt{plaininstr}} \\ & \def\mathdef3197#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3197{(}~\def\mathdef3198#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3198{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\mathdef3199#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3199{)} &\equiv\quad \def\mathdef3200#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3200{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\mathdef3201#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3201{end} \\ & \def\mathdef3202#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3202{(}~\def\mathdef3203#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3203{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\mathdef3204#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3204{)} &\equiv\quad \def\mathdef3205#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3205{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\mathdef3206#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3206{end} \\ & \def\mathdef3207#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3207{(}~\def\mathdef3208#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3208{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\mathdef3209#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3209{(}~\def\mathdef3210#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3210{then}~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}_1^\ast~\def\mathdef3211#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3211{)}~~\def\mathdef3212#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3212{(}~\def\mathdef3213#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3213{else}~~\href{../text/instructions.html#text-instr}{\mathtt{instr}}_2^\ast~\def\mathdef3214#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3214{)}^?~~\def\mathdef3215#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3215{)} \quad\equiv \\ &\qquad \href{../text/instructions.html#text-foldedinstr}{\mathtt{foldedinstr}}^\ast~~\def\mathdef3216#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3216{if}~~\href{../text/instructions.html#text-label}{\mathtt{label}}~~\href{../text/instructions.html#text-blocktype}{\mathtt{blocktype}} &\hspace{-1ex} \href{../text/instructions.html#text-instr}{\mathtt{instr}}_1^\ast~~\def\mathdef3217#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3217{else}~~(\href{../text/instructions.html#text-instr}{\mathtt{instr}}_2^\ast)^?~\def\mathdef3218#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3218{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 \(\def\mathdef3219#1{\mbox{‘}\mathtt{#1}\mbox{’}}\mathdef3219{end}\) keyword is included, since they only occur in bracketed positions.

\[\begin{split}\begin{array}{llclll} \def\mathdef2678#1{{}}\mathdef2678{expression} & \href{../text/instructions.html#text-expr}{\mathtt{expr}}_I &::=& (\mathit{in}{:}\href{../text/instructions.html#text-instr}{\mathtt{instr}}_I)^\ast &\Rightarrow& \mathit{in}^\ast~\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}} \\ \end{array}\end{split}\]