指令¶

指令由 *操作码* 编码。每个操作码由单个字节表示，并在需要的情况下紧跟其指令的立即数参数。唯一的例外是结构化控制指令，它们由几个操作码组成，用于括起它们的嵌套指令序列。

注意

用于编码指令的字节码范围中的间隙保留用于将来的扩展。

控制指令¶

控制指令具有不同的编码。对于结构化指令，形成嵌套块的指令序列以显式操作码 \(\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}}\) 和 \(\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{else}}\) 结束。

块类型以特殊的压缩形式编码，通过字节 \(\def\mathdef1404#1{\mathtt{0x#1}}\mathdef1404{40}\) 表示空类型，或作为单个值类型，或者作为类型索引编码为正有符号整数。

\[\begin{split}\begin{array}{llcllll} \def\mathdef1365#1{{}}\mathdef1365{块类型} & \href{../binary/instructions.html#binary-blocktype}{\mathtt{blocktype}} &::=& \def\mathdef1405#1{\mathtt{0x#1}}\mathdef1405{40} &\Rightarrow& \epsilon \\ &&|& t{:}\href{../binary/types.html#binary-valtype}{\mathtt{valtype}} &\Rightarrow& t \\ &&|& x{:}\href{../binary/values.html#binary-int}{\def\mathdef1375#1{{\mathtt{s}#1}}\mathdef1375{\mathtt{33}}} &\Rightarrow& x & (\mathrel{\mbox{if}} x \geq 0) \\ \def\mathdef1365#1{{}}\mathdef1365{指令} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \def\mathdef1406#1{\mathtt{0x#1}}\mathdef1406{00} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{unreachable}} \\ &&|& \def\mathdef1407#1{\mathtt{0x#1}}\mathdef1407{01} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{nop}} \\ &&|& \def\mathdef1408#1{\mathtt{0x#1}}\mathdef1408{02}~~\mathit{bt}{:}\href{../binary/instructions.html#binary-blocktype}{\mathtt{blocktype}}~~(\mathit{in}{:}\href{../binary/instructions.html#binary-instr}{\mathtt{instr}})^\ast~~\def\mathdef1409#1{\mathtt{0x#1}}\mathdef1409{0B} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{block}}~\mathit{bt}~\mathit{in}^\ast~\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}} \\ &&|& \def\mathdef1410#1{\mathtt{0x#1}}\mathdef1410{03}~~\mathit{bt}{:}\href{../binary/instructions.html#binary-blocktype}{\mathtt{blocktype}}~~(\mathit{in}{:}\href{../binary/instructions.html#binary-instr}{\mathtt{instr}})^\ast~~\def\mathdef1411#1{\mathtt{0x#1}}\mathdef1411{0B} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{loop}}~\mathit{bt}~\mathit{in}^\ast~\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}} \\ &&|& \def\mathdef1412#1{\mathtt{0x#1}}\mathdef1412{04}~~\mathit{bt}{:}\href{../binary/instructions.html#binary-blocktype}{\mathtt{blocktype}}~~(\mathit{in}{:}\href{../binary/instructions.html#binary-instr}{\mathtt{instr}})^\ast~~\def\mathdef1413#1{\mathtt{0x#1}}\mathdef1413{0B} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{if}}~\mathit{bt}~\mathit{in}^\ast~\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{else}}~\epsilon~\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}} \\ &&|& \def\mathdef1414#1{\mathtt{0x#1}}\mathdef1414{04}~~\mathit{bt}{:}\href{../binary/instructions.html#binary-blocktype}{\mathtt{blocktype}}~~(\mathit{in}_1{:}\href{../binary/instructions.html#binary-instr}{\mathtt{instr}})^\ast~~ \def\mathdef1415#1{\mathtt{0x#1}}\mathdef1415{05}~~(\mathit{in}_2{:}\href{../binary/instructions.html#binary-instr}{\mathtt{instr}})^\ast~~\def\mathdef1416#1{\mathtt{0x#1}}\mathdef1416{0B} &\Rightarrow& \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}} \\ &&|& \def\mathdef1417#1{\mathtt{0x#1}}\mathdef1417{0C}~~l{:}\href{../binary/modules.html#binary-labelidx}{\mathtt{labelidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br}}~l \\ &&|& \def\mathdef1418#1{\mathtt{0x#1}}\mathdef1418{0D}~~l{:}\href{../binary/modules.html#binary-labelidx}{\mathtt{labelidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br\_if}}~l \\ &&|& \def\mathdef1419#1{\mathtt{0x#1}}\mathdef1419{0E}~~l^\ast{:}\href{../binary/conventions.html#binary-vec}{\mathtt{vec}}(\href{../binary/modules.html#binary-labelidx}{\mathtt{labelidx}})~~l_N{:}\href{../binary/modules.html#binary-labelidx}{\mathtt{labelidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br\_table}}~l^\ast~l_N \\ &&|& \def\mathdef1420#1{\mathtt{0x#1}}\mathdef1420{0F} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{return}} \\ &&|& \def\mathdef1421#1{\mathtt{0x#1}}\mathdef1421{10}~~x{:}\href{../binary/modules.html#binary-funcidx}{\mathtt{funcidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{call}}~x \\ &&|& \def\mathdef1422#1{\mathtt{0x#1}}\mathdef1422{11}~~y{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}}~~x{:}\href{../binary/modules.html#binary-tableidx}{\mathtt{tableidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{call\_indirect}}~x~y \\ \end{array}\end{split}\]

注意

编码 \(\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{if}}\) 指令中的 \(\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{else}}\) 操作码 \(\def\mathdef1423#1{\mathtt{0x#1}}\mathdef1423{05}\) 可以省略，如果后面的指令序列为空。

与其他出现不同，类型索引在块类型中编码为正有符号整数，因此其有符号 LEB128 位模式不会与值类型或特殊代码 \(\def\mathdef1424#1{\mathtt{0x#1}}\mathdef1424{40}\) 的编码冲突，它们对应于负整数的 LEB128 编码。为了避免允许索引范围的任何损失，它被视为一个 33 位有符号整数。

引用指令¶

引用指令由单个字节代码表示。

\[\begin{split}\begin{array}{llclll} \def\mathdef1365#1{{}}\mathdef1365{指令} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\ &&|& \def\mathdef1425#1{\mathtt{0x#1}}\mathdef1425{D0}~~t{:}\href{../binary/types.html#binary-reftype}{\mathtt{reftype}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref{.}null}}~t \\ &&|& \def\mathdef1426#1{\mathtt{0x#1}}\mathdef1426{D1} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref{.}is\_null}} \\ &&|& \def\mathdef1427#1{\mathtt{0x#1}}\mathdef1427{D2}~~x{:}\href{../binary/modules.html#binary-funcidx}{\mathtt{funcidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref{.}func}}~x \\ \end{array}\end{split}\]

参数指令¶

参数指令由单个字节代码表示，可能后面跟着类型注释。

\[\begin{split}\begin{array}{llclll} \def\mathdef1365#1{{}}\mathdef1365{指令} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\ &&|& \def\mathdef1428#1{\mathtt{0x#1}}\mathdef1428{1A} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-parametric}{\mathsf{drop}} \\ &&|& \def\mathdef1429#1{\mathtt{0x#1}}\mathdef1429{1B} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-parametric}{\mathsf{select}} \\ &&|& \def\mathdef1430#1{\mathtt{0x#1}}\mathdef1430{1C}~~t^\ast{:}\href{../binary/conventions.html#binary-vec}{\mathtt{vec}}(\href{../binary/types.html#binary-valtype}{\mathtt{valtype}}) &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-parametric}{\mathsf{select}}~t^\ast \\ \end{array}\end{split}\]

变量指令¶

变量指令由字节代码表示，后面跟着各自索引的编码。

\[\begin{split}\begin{array}{llclll} \def\mathdef1365#1{{}}\mathdef1365{指令} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\ &&|& \def\mathdef1431#1{\mathtt{0x#1}}\mathdef1431{20}~~x{:}\href{../binary/modules.html#binary-localidx}{\mathtt{localidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{local.get}}~x \\ &&|& \def\mathdef1432#1{\mathtt{0x#1}}\mathdef1432{21}~~x{:}\href{../binary/modules.html#binary-localidx}{\mathtt{localidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{local.set}}~x \\ &&|& \def\mathdef1433#1{\mathtt{0x#1}}\mathdef1433{22}~~x{:}\href{../binary/modules.html#binary-localidx}{\mathtt{localidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{local.tee}}~x \\ &&|& \def\mathdef1434#1{\mathtt{0x#1}}\mathdef1434{23}~~x{:}\href{../binary/modules.html#binary-globalidx}{\mathtt{globalidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{global.get}}~x \\ &&|& \def\mathdef1435#1{\mathtt{0x#1}}\mathdef1435{24}~~x{:}\href{../binary/modules.html#binary-globalidx}{\mathtt{globalidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{global.set}}~x \\ \end{array}\end{split}\]

表指令¶

表指令由单个字节或一个字节前缀后面跟着可变长度无符号整数表示。

\[\begin{split}\begin{array}{llclll} \def\mathdef1365#1{{}}\mathdef1365{指令} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\ &&|& \def\mathdef1436#1{\mathtt{0x#1}}\mathdef1436{25}~~x{:}\href{../binary/modules.html#binary-tableidx}{\mathtt{tableidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table.get}}~x \\ &&|& \def\mathdef1437#1{\mathtt{0x#1}}\mathdef1437{26}~~x{:}\href{../binary/modules.html#binary-tableidx}{\mathtt{tableidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table.set}}~x \\ &&|& \def\mathdef1438#1{\mathtt{0x#1}}\mathdef1438{FC}~~12{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~y{:}\href{../binary/modules.html#binary-elemidx}{\mathtt{elemidx}}~~x{:}\href{../binary/modules.html#binary-tableidx}{\mathtt{tableidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table.init}}~x~y \\ &&|& \def\mathdef1439#1{\mathtt{0x#1}}\mathdef1439{FC}~~13{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-elemidx}{\mathtt{elemidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{elem.drop}}~x \\ &&|& \def\mathdef1440#1{\mathtt{0x#1}}\mathdef1440{FC}~~14{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-tableidx}{\mathtt{tableidx}}~~y{:}\href{../binary/modules.html#binary-tableidx}{\mathtt{tableidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table.copy}}~x~y \\ &&|& \def\mathdef1441#1{\mathtt{0x#1}}\mathdef1441{FC}~~15{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-tableidx}{\mathtt{tableidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table.grow}}~x \\ &&|& \def\mathdef1442#1{\mathtt{0x#1}}\mathdef1442{FC}~~16{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-tableidx}{\mathtt{tableidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table.size}}~x \\ &&|& \def\mathdef1443#1{\mathtt{0x#1}}\mathdef1443{FC}~~17{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-tableidx}{\mathtt{tableidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table.fill}}~x \\ \end{array}\end{split}\]

内存指令¶

每个变体内存指令都使用不同的字节码进行编码。加载和存储后面跟着它们 \(\href{../syntax/instructions.html#syntax-memarg}{\mathit{memarg}}\) 立即数的编码。

\[\begin{split}\begin{array}{llclll} \def\mathdef1365#1{{}}\mathdef1365{内存参数} & \href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &::=& a{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~o{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \{ \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{align}}~a,~\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{offset}}~o \} \\ \def\mathdef1365#1{{}}\mathdef1365{指令} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\ &&|& \def\mathdef1444#1{\mathtt{0x#1}}\mathdef1444{28}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~m \\ &&|& \def\mathdef1445#1{\mathtt{0x#1}}\mathdef1445{29}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~m \\ &&|& \def\mathdef1446#1{\mathtt{0x#1}}\mathdef1446{2A}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~m \\ &&|& \def\mathdef1447#1{\mathtt{0x#1}}\mathdef1447{2B}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~m \\ &&|& \def\mathdef1448#1{\mathtt{0x#1}}\mathdef1448{2C}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_s}~m \\ &&|& \def\mathdef1449#1{\mathtt{0x#1}}\mathdef1449{2D}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_u}~m \\ &&|& \def\mathdef1450#1{\mathtt{0x#1}}\mathdef1450{2E}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_s}~m \\ &&|& \def\mathdef1451#1{\mathtt{0x#1}}\mathdef1451{2F}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_u}~m \\ &&|& \def\mathdef1452#1{\mathtt{0x#1}}\mathdef1452{30}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_s}~m \\ &&|& \def\mathdef1453#1{\mathtt{0x#1}}\mathdef1453{31}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_u}~m \\ &&|& \def\mathdef1454#1{\mathtt{0x#1}}\mathdef1454{32}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_s}~m \\ &&|& \def\mathdef1455#1{\mathtt{0x#1}}\mathdef1455{33}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_u}~m \\ &&|& \def\mathdef1456#1{\mathtt{0x#1}}\mathdef1456{34}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_s}~m \\ &&|& \def\mathdef1457#1{\mathtt{0x#1}}\mathdef1457{35}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_u}~m \\ &&|& \def\mathdef1458#1{\mathtt{0x#1}}\mathdef1458{36}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~m \\ &&|& \def\mathdef1459#1{\mathtt{0x#1}}\mathdef1459{37}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~m \\ &&|& \def\mathdef1460#1{\mathtt{0x#1}}\mathdef1460{38}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~m \\ &&|& \def\mathdef1461#1{\mathtt{0x#1}}\mathdef1461{39}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~m \\ &&|& \def\mathdef1462#1{\mathtt{0x#1}}\mathdef1462{3A}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{8}~m \\ &&|& \def\mathdef1463#1{\mathtt{0x#1}}\mathdef1463{3B}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{16}~m \\ &&|& \def\mathdef1464#1{\mathtt{0x#1}}\mathdef1464{3C}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{8}~m \\ &&|& \def\mathdef1465#1{\mathtt{0x#1}}\mathdef1465{3D}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{16}~m \\ &&|& \def\mathdef1466#1{\mathtt{0x#1}}\mathdef1466{3E}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{32}~m \\ &&|& \def\mathdef1467#1{\mathtt{0x#1}}\mathdef1467{3F}~~\def\mathdef1468#1{\mathtt{0x#1}}\mathdef1468{00} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.size}} \\ &&|& \def\mathdef1469#1{\mathtt{0x#1}}\mathdef1469{40}~~\def\mathdef1470#1{\mathtt{0x#1}}\mathdef1470{00} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.grow}} \\ &&|& \def\mathdef1471#1{\mathtt{0x#1}}\mathdef1471{FC}~~8{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-dataidx}{\mathtt{dataidx}}~\def\mathdef1472#1{\mathtt{0x#1}}\mathdef1472{00} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.init}}~x \\ &&|& \def\mathdef1473#1{\mathtt{0x#1}}\mathdef1473{FC}~~9{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-dataidx}{\mathtt{dataidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{data.drop}}~x \\ &&|& \def\mathdef1474#1{\mathtt{0x#1}}\mathdef1474{FC}~~10{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~\def\mathdef1475#1{\mathtt{0x#1}}\mathdef1475{00}~~\def\mathdef1476#1{\mathtt{0x#1}}\mathdef1476{00} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.copy}} \\ &&|& \def\mathdef1477#1{\mathtt{0x#1}}\mathdef1477{FC}~~11{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~\def\mathdef1478#1{\mathtt{0x#1}}\mathdef1478{00} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.fill}} \\ \end{array}\end{split}\]

注意

在 WebAssembly 的未来版本中，\(\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.size}}\)、\(\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.grow}}\)、\(\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.copy}}\) 和 \(\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.fill}}\) 指令编码中出现的额外零字节可以用于索引其他内存。

数值指令¶

所有数值指令的变体都由不同的字节码表示。

\(\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}\) 指令后面是相应的字面量。

\[\begin{split}\begin{array}{llclll} \def\mathdef1365#1{{}}\mathdef1365{指令} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\&&|& \def\mathdef1479#1{\mathtt{0x#1}}\mathdef1479{41}~~n{:}\href{../binary/values.html#binary-int}{\def\mathdef1378#1{{\mathtt{i}#1}}\mathdef1378{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~n \\ &&|& \def\mathdef1480#1{\mathtt{0x#1}}\mathdef1480{42}~~n{:}\href{../binary/values.html#binary-int}{\def\mathdef1379#1{{\mathtt{i}#1}}\mathdef1379{\mathtt{64}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~n \\ &&|& \def\mathdef1481#1{\mathtt{0x#1}}\mathdef1481{43}~~z{:}\href{../binary/values.html#binary-float}{\def\mathdef1381#1{{\mathtt{f}#1}}\mathdef1381{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~z \\ &&|& \def\mathdef1482#1{\mathtt{0x#1}}\mathdef1482{44}~~z{:}\href{../binary/values.html#binary-float}{\def\mathdef1382#1{{\mathtt{f}#1}}\mathdef1382{\mathtt{64}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~z \\ \end{array}\end{split}\]

所有其他数值指令都是没有立即数的纯操作码。

\[\begin{split}\begin{array}{llclll} \def\mathdef1365#1{{}}\mathdef1365{指令} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots && \phantom{thisshouldbeenough} \\&&|& \def\mathdef1483#1{\mathtt{0x#1}}\mathdef1483{45} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eqz}} \\ &&|& \def\mathdef1484#1{\mathtt{0x#1}}\mathdef1484{46} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef1485#1{\mathtt{0x#1}}\mathdef1485{47} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef1486#1{\mathtt{0x#1}}\mathdef1486{48} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef1487#1{\mathtt{0x#1}}\mathdef1487{49} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_u} \\ &&|& \def\mathdef1488#1{\mathtt{0x#1}}\mathdef1488{4A} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef1489#1{\mathtt{0x#1}}\mathdef1489{4B} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_u} \\ &&|& \def\mathdef1490#1{\mathtt{0x#1}}\mathdef1490{4C} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef1491#1{\mathtt{0x#1}}\mathdef1491{4D} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_u} \\ &&|& \def\mathdef1492#1{\mathtt{0x#1}}\mathdef1492{4E} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}}\mathsf{\_s} \\ &&|& \def\mathdef1493#1{\mathtt{0x#1}}\mathdef1493{4F} &\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\mathdef1365#1{{}}\mathdef1365{指令}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1494#1{\mathtt{0x#1}}\mathdef1494{50} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eqz}} \\ &&|& \def\mathdef1495#1{\mathtt{0x#1}}\mathdef1495{51} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef1496#1{\mathtt{0x#1}}\mathdef1496{52} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef1497#1{\mathtt{0x#1}}\mathdef1497{53} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef1498#1{\mathtt{0x#1}}\mathdef1498{54} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_u} \\ &&|& \def\mathdef1499#1{\mathtt{0x#1}}\mathdef1499{55} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef1500#1{\mathtt{0x#1}}\mathdef1500{56} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_u} \\ &&|& \def\mathdef1501#1{\mathtt{0x#1}}\mathdef1501{57} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef1502#1{\mathtt{0x#1}}\mathdef1502{58} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_u} \\ &&|& \def\mathdef1503#1{\mathtt{0x#1}}\mathdef1503{59} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}}\mathsf{\_s} \\ &&|& \def\mathdef1504#1{\mathtt{0x#1}}\mathdef1504{5A} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}}\mathsf{\_u} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1365#1{{}}\mathdef1365{指令}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1505#1{\mathtt{0x#1}}\mathdef1505{5B} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef1506#1{\mathtt{0x#1}}\mathdef1506{5C} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef1507#1{\mathtt{0x#1}}\mathdef1507{5D} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}} \\ &&|& \def\mathdef1508#1{\mathtt{0x#1}}\mathdef1508{5E} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}} \\ &&|& \def\mathdef1509#1{\mathtt{0x#1}}\mathdef1509{5F} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}} \\ &&|& \def\mathdef1510#1{\mathtt{0x#1}}\mathdef1510{60} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1511#1{\mathtt{0x#1}}\mathdef1511{61} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef1512#1{\mathtt{0x#1}}\mathdef1512{62} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef1513#1{\mathtt{0x#1}}\mathdef1513{63} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}} \\ &&|& \def\mathdef1514#1{\mathtt{0x#1}}\mathdef1514{64} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}} \\ &&|& \def\mathdef1515#1{\mathtt{0x#1}}\mathdef1515{65} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}} \\ &&|& \def\mathdef1516#1{\mathtt{0x#1}}\mathdef1516{66} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1517#1{\mathtt{0x#1}}\mathdef1517{67} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{clz}} \\ &&|& \def\mathdef1518#1{\mathtt{0x#1}}\mathdef1518{68} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ctz}} \\ &&|& \def\mathdef1519#1{\mathtt{0x#1}}\mathdef1519{69} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{popcnt}} \\ &&|& \def\mathdef1520#1{\mathtt{0x#1}}\mathdef1520{6A} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef1521#1{\mathtt{0x#1}}\mathdef1521{6B} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef1522#1{\mathtt{0x#1}}\mathdef1522{6C} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef1523#1{\mathtt{0x#1}}\mathdef1523{6D} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_s} \\ &&|& \def\mathdef1524#1{\mathtt{0x#1}}\mathdef1524{6E} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_u} \\ &&|& \def\mathdef1525#1{\mathtt{0x#1}}\mathdef1525{6F} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_s} \\ &&|& \def\mathdef1526#1{\mathtt{0x#1}}\mathdef1526{70} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_u} \\ &&|& \def\mathdef1527#1{\mathtt{0x#1}}\mathdef1527{71} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{and}} \\ &&|& \def\mathdef1528#1{\mathtt{0x#1}}\mathdef1528{72} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{or}} \\ &&|& \def\mathdef1529#1{\mathtt{0x#1}}\mathdef1529{73} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{xor}} \\ &&|& \def\mathdef1530#1{\mathtt{0x#1}}\mathdef1530{74} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shl}} \\ &&|& \def\mathdef1531#1{\mathtt{0x#1}}\mathdef1531{75} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef1532#1{\mathtt{0x#1}}\mathdef1532{76} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef1533#1{\mathtt{0x#1}}\mathdef1533{77} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rotl}} \\ &&|& \def\mathdef1534#1{\mathtt{0x#1}}\mathdef1534{78} &\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\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1535#1{\mathtt{0x#1}}\mathdef1535{79} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{clz}} \\ &&|& \def\mathdef1536#1{\mathtt{0x#1}}\mathdef1536{7A} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ctz}} \\ &&|& \def\mathdef1537#1{\mathtt{0x#1}}\mathdef1537{7B} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{popcnt}} \\ &&|& \def\mathdef1538#1{\mathtt{0x#1}}\mathdef1538{7C} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef1539#1{\mathtt{0x#1}}\mathdef1539{7D} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef1540#1{\mathtt{0x#1}}\mathdef1540{7E} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef1541#1{\mathtt{0x#1}}\mathdef1541{7F} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_s} \\ &&|& \def\mathdef1542#1{\mathtt{0x#1}}\mathdef1542{80} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_u} \\ &&|& \def\mathdef1543#1{\mathtt{0x#1}}\mathdef1543{81} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_s} \\ &&|& \def\mathdef1544#1{\mathtt{0x#1}}\mathdef1544{82} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_u} \\ &&|& \def\mathdef1545#1{\mathtt{0x#1}}\mathdef1545{83} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{and}} \\ &&|& \def\mathdef1546#1{\mathtt{0x#1}}\mathdef1546{84} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{or}} \\ &&|& \def\mathdef1547#1{\mathtt{0x#1}}\mathdef1547{85} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{xor}} \\ &&|& \def\mathdef1548#1{\mathtt{0x#1}}\mathdef1548{86} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shl}} \\ &&|& \def\mathdef1549#1{\mathtt{0x#1}}\mathdef1549{87} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef1550#1{\mathtt{0x#1}}\mathdef1550{88} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef1551#1{\mathtt{0x#1}}\mathdef1551{89} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rotl}} \\ &&|& \def\mathdef1552#1{\mathtt{0x#1}}\mathdef1552{8A} &\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\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1553#1{\mathtt{0x#1}}\mathdef1553{8B} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{abs}} \\ &&|& \def\mathdef1554#1{\mathtt{0x#1}}\mathdef1554{8C} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{neg}} \\ &&|& \def\mathdef1555#1{\mathtt{0x#1}}\mathdef1555{8D} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ceil}} \\ &&|& \def\mathdef1556#1{\mathtt{0x#1}}\mathdef1556{8E} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{floor}} \\ &&|& \def\mathdef1557#1{\mathtt{0x#1}}\mathdef1557{8F} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}} \\ &&|& \def\mathdef1558#1{\mathtt{0x#1}}\mathdef1558{90} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{nearest}} \\ &&|& \def\mathdef1559#1{\mathtt{0x#1}}\mathdef1559{91} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sqrt}} \\ &&|& \def\mathdef1560#1{\mathtt{0x#1}}\mathdef1560{92} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef1561#1{\mathtt{0x#1}}\mathdef1561{93} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef1562#1{\mathtt{0x#1}}\mathdef1562{94} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef1563#1{\mathtt{0x#1}}\mathdef1563{95} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}} \\ &&|& \def\mathdef1564#1{\mathtt{0x#1}}\mathdef1564{96} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{min}} \\ &&|& \def\mathdef1565#1{\mathtt{0x#1}}\mathdef1565{97} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{max}} \\ &&|& \def\mathdef1566#1{\mathtt{0x#1}}\mathdef1566{98} &\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\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1567#1{\mathtt{0x#1}}\mathdef1567{99} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{abs}} \\ &&|& \def\mathdef1568#1{\mathtt{0x#1}}\mathdef1568{9A} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{neg}} \\ &&|& \def\mathdef1569#1{\mathtt{0x#1}}\mathdef1569{9B} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ceil}} \\ &&|& \def\mathdef1570#1{\mathtt{0x#1}}\mathdef1570{9C} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{floor}} \\ &&|& \def\mathdef1571#1{\mathtt{0x#1}}\mathdef1571{9D} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}} \\ &&|& \def\mathdef1572#1{\mathtt{0x#1}}\mathdef1572{9E} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{nearest}} \\ &&|& \def\mathdef1573#1{\mathtt{0x#1}}\mathdef1573{9F} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sqrt}} \\ &&|& \def\mathdef1574#1{\mathtt{0x#1}}\mathdef1574{A0} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef1575#1{\mathtt{0x#1}}\mathdef1575{A1} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef1576#1{\mathtt{0x#1}}\mathdef1576{A2} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef1577#1{\mathtt{0x#1}}\mathdef1577{A3} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}} \\ &&|& \def\mathdef1578#1{\mathtt{0x#1}}\mathdef1578{A4} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{min}} \\ &&|& \def\mathdef1579#1{\mathtt{0x#1}}\mathdef1579{A5} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{max}} \\ &&|& \def\mathdef1580#1{\mathtt{0x#1}}\mathdef1580{A6} &\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\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1581#1{\mathtt{0x#1}}\mathdef1581{A7} &\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\mathdef1582#1{\mathtt{0x#1}}\mathdef1582{A8} &\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\mathdef1583#1{\mathtt{0x#1}}\mathdef1583{A9} &\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\mathdef1584#1{\mathtt{0x#1}}\mathdef1584{AA} &\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\mathdef1585#1{\mathtt{0x#1}}\mathdef1585{AB} &\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\mathdef1586#1{\mathtt{0x#1}}\mathdef1586{AC} &\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\mathdef1587#1{\mathtt{0x#1}}\mathdef1587{AD} &\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\mathdef1588#1{\mathtt{0x#1}}\mathdef1588{AE} &\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\mathdef1589#1{\mathtt{0x#1}}\mathdef1589{AF} &\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\mathdef1590#1{\mathtt{0x#1}}\mathdef1590{B0} &\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\mathdef1591#1{\mathtt{0x#1}}\mathdef1591{B1} &\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\mathdef1592#1{\mathtt{0x#1}}\mathdef1592{B2} &\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\mathdef1593#1{\mathtt{0x#1}}\mathdef1593{B3} &\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\mathdef1594#1{\mathtt{0x#1}}\mathdef1594{B4} &\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\mathdef1595#1{\mathtt{0x#1}}\mathdef1595{B5} &\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\mathdef1596#1{\mathtt{0x#1}}\mathdef1596{B6} &\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\mathdef1597#1{\mathtt{0x#1}}\mathdef1597{B7} &\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\mathdef1598#1{\mathtt{0x#1}}\mathdef1598{B8} &\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\mathdef1599#1{\mathtt{0x#1}}\mathdef1599{B9} &\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\mathdef1600#1{\mathtt{0x#1}}\mathdef1600{BA} &\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\mathdef1601#1{\mathtt{0x#1}}\mathdef1601{BB} &\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\mathdef1602#1{\mathtt{0x#1}}\mathdef1602{BC} &\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\mathdef1603#1{\mathtt{0x#1}}\mathdef1603{BD} &\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\mathdef1604#1{\mathtt{0x#1}}\mathdef1604{BE} &\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\mathdef1605#1{\mathtt{0x#1}}\mathdef1605{BF} &\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}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1606#1{\mathtt{0x#1}}\mathdef1606{C0} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{8\_s} \\ &&|& \def\mathdef1607#1{\mathtt{0x#1}}\mathdef1607{C1} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{16\_s} \\ &&|& \def\mathdef1608#1{\mathtt{0x#1}}\mathdef1608{C2} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{8\_s} \\ &&|& \def\mathdef1609#1{\mathtt{0x#1}}\mathdef1609{C3} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{16\_s} \\ &&|& \def\mathdef1610#1{\mathtt{0x#1}}\mathdef1610{C4} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{32\_s} \\ \end{array}\end{split}\]

饱和截断指令都有一个字节前缀，而实际的操作码由一个可变长度的无符号整数编码。

\[\begin{split}\begin{array}{llclll} \def\mathdef1365#1{{}}\mathdef1365{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots && \phantom{thisshouldbeenough} \\&&|& \def\mathdef1611#1{\mathtt{0x#1}}\mathdef1611{FC}~~0{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1612#1{\mathtt{0x#1}}\mathdef1612{FC}~~1{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1613#1{\mathtt{0x#1}}\mathdef1613{FC}~~2{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1614#1{\mathtt{0x#1}}\mathdef1614{FC}~~3{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1615#1{\mathtt{0x#1}}\mathdef1615{FC}~~4{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1616#1{\mathtt{0x#1}}\mathdef1616{FC}~~5{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1617#1{\mathtt{0x#1}}\mathdef1617{FC}~~6{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1618#1{\mathtt{0x#1}}\mathdef1618{FC}~~7{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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} \\ \end{array}\end{split}\]

向量指令¶

所有变体向量指令由单独的字节码表示。它们都具有一个字节前缀，而实际的操作码由可变长度的无符号整数编码。

向量加载和存储之后是其 \(\href{../syntax/instructions.html#syntax-memarg}{\mathit{memarg}}\) 立即值的编码。

\[\begin{split}\begin{array}{llclll} \def\mathdef1365#1{{}}\mathdef1365{车道索引} & \href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &::=& l{:}\href{../binary/values.html#binary-byte}{\mathtt{字节}} &\Rightarrow& l \\ \def\mathdef1365#1{{}}\mathdef1365{指令} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\&&|& \def\mathdef1619#1{\mathtt{0x#1}}\mathdef1619{FD}~~0{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}~m \\ &&|& \def\mathdef1620#1{\mathtt{0x#1}}\mathdef1620{FD}~~1{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{8x8\_s}~m \\ &&|& \def\mathdef1621#1{\mathtt{0x#1}}\mathdef1621{FD}~~2{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{8x8\_u}~m \\ &&|& \def\mathdef1622#1{\mathtt{0x#1}}\mathdef1622{FD}~~3{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{16x4\_s}~m \\ &&|& \def\mathdef1623#1{\mathtt{0x#1}}\mathdef1623{FD}~~4{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{16x4\_u}~m \\ &&|& \def\mathdef1624#1{\mathtt{0x#1}}\mathdef1624{FD}~~5{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{32x2\_s}~m \\ &&|& \def\mathdef1625#1{\mathtt{0x#1}}\mathdef1625{FD}~~6{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{32x2\_u}~m \\ &&|& \def\mathdef1626#1{\mathtt{0x#1}}\mathdef1626{FD}~~7{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{8\_splat}~m \\ &&|& \def\mathdef1627#1{\mathtt{0x#1}}\mathdef1627{FD}~~8{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{16\_splat}~m \\ &&|& \def\mathdef1628#1{\mathtt{0x#1}}\mathdef1628{FD}~~9{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{32\_splat}~m \\ &&|& \def\mathdef1629#1{\mathtt{0x#1}}\mathdef1629{FD}~~10{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{64\_splat}~m \\ &&|& \def\mathdef1630#1{\mathtt{0x#1}}\mathdef1630{FD}~~92{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{32\_zero}~m \\ &&|& \def\mathdef1631#1{\mathtt{0x#1}}\mathdef1631{FD}~~93{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{64\_zero}~m \\ &&|& \def\mathdef1632#1{\mathtt{0x#1}}\mathdef1632{FD}~~11{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{存储}}~m \\ &&|& \def\mathdef1633#1{\mathtt{0x#1}}\mathdef1633{FD}~~84{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{8\_lane}~m~l \\ &&|& \def\mathdef1634#1{\mathtt{0x#1}}\mathdef1634{FD}~~85{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{16\_lane}~m~l \\ &&|& \def\mathdef1635#1{\mathtt{0x#1}}\mathdef1635{FD}~~86{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{32\_lane}~m~l \\ &&|& \def\mathdef1636#1{\mathtt{0x#1}}\mathdef1636{FD}~~87{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{加载}}\mathsf{64\_lane}~m~l \\ &&|& \def\mathdef1637#1{\mathtt{0x#1}}\mathdef1637{FD}~~88{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{存储}}\mathsf{8\_lane}~m~l \\ &&|& \def\mathdef1638#1{\mathtt{0x#1}}\mathdef1638{FD}~~89{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{存储}}\mathsf{16\_lane}~m~l \\ &&|& \def\mathdef1639#1{\mathtt{0x#1}}\mathdef1639{FD}~~90{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{存储}}\mathsf{32\_lane}~m~l \\ &&|& \def\mathdef1640#1{\mathtt{0x#1}}\mathdef1640{FD}~~91{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{内存地址}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{存储}}\mathsf{64\_lane}~m~l \\ \end{array}\end{split}\]

指令\(\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{const}}\) 后面跟着 16 个立即字节，这些字节被转换为 \(\href{../syntax/values.html#syntax-int}{\mathit{i128}}\)，以 \(\href{../exec/numerics.html#aux-littleendian}{\mathrm{小端序}}\) 字节序。

\[\begin{split}\begin{array}{llclll} \def\mathdef1365#1{{}}\mathdef1365{指令} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\&&|& \def\mathdef1641#1{\mathtt{0x#1}}\mathdef1641{FD}~~12{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~(b{:}\href{../binary/values.html#binary-byte}{\mathtt{字节}})^{16} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{const}}~ \href{../exec/numerics.html#aux-bytes}{\mathrm{字节}}_{\mathsf{i128}}^{-1}(b_{0}~\dots~b_{15}) \\ \end{array}\end{split}\]

指令\(\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shuffle}}\) 后面也跟着 16 个\(\href{../syntax/instructions.html#syntax-laneidx}{\mathit{车道索引}}\) 立即值的编码。

\[\begin{split}\begin{array}{llclll} \def\mathdef1365#1{{}}\mathdef1365{指令} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\&&|& \def\mathdef1642#1{\mathtt{0x#1}}\mathdef1642{FD}~~13{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~(l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}})^{16} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shuffle}}~l^{16} \\ \end{array}\end{split}\]

指令\(\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\) 和 \(\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}\) 后面跟着一个\(\href{../syntax/instructions.html#syntax-laneidx}{\mathit{车道索引}}\) 立即值的编码。

\[\begin{split}\begin{array}{llclll} \def\mathdef1365#1{{}}\mathdef1365{指令} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\&&|& \def\mathdef1643#1{\mathtt{0x#1}}\mathdef1643{FD}~~21{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_s}~l \\ &&|& \def\mathdef1644#1{\mathtt{0x#1}}\mathdef1644{FD}~~22{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_u}~l \\ &&|& \def\mathdef1645#1{\mathtt{0x#1}}\mathdef1645{FD}~~23{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~l \\ &&|& \def\mathdef1646#1{\mathtt{0x#1}}\mathdef1646{FD}~~24{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_s}~l \\ &&|& \def\mathdef1647#1{\mathtt{0x#1}}\mathdef1647{FD}~~25{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_u}~l \\ &&|& \def\mathdef1648#1{\mathtt{0x#1}}\mathdef1648{FD}~~26{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~l \\ &&|& \def\mathdef1649#1{\mathtt{0x#1}}\mathdef1649{FD}~~27{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~l \\ &&|& \def\mathdef1650#1{\mathtt{0x#1}}\mathdef1650{FD}~~28{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~l \\ &&|& \def\mathdef1651#1{\mathtt{0x#1}}\mathdef1651{FD}~~29{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~l \\ &&|& \def\mathdef1652#1{\mathtt{0x#1}}\mathdef1652{FD}~~30{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~l \\ &&|& \def\mathdef1653#1{\mathtt{0x#1}}\mathdef1653{FD}~~31{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~l \\ &&|& \def\mathdef1654#1{\mathtt{0x#1}}\mathdef1654{FD}~~32{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~l \\ &&|& \def\mathdef1655#1{\mathtt{0x#1}}\mathdef1655{FD}~~33{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~l \\ &&|& \def\mathdef1656#1{\mathtt{0x#1}}\mathdef1656{FD}~~34{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{车道索引}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~l \\ \end{array}\end{split}\]

所有其他向量指令都是不带任何立即值的纯操作码。

\[\begin{split}\begin{array}{llclll} \def\mathdef1365#1{{}}\mathdef1365{指令} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots && \phantom{vechaslongerinstructionnames} \\&&|& \def\mathdef1657#1{\mathtt{0x#1}}\mathdef1657{FD}~~14{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{swizzle}} \\ &&|& \def\mathdef1658#1{\mathtt{0x#1}}\mathdef1658{FD}~~15{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}} \\ &&|& \def\mathdef1659#1{\mathtt{0x#1}}\mathdef1659{FD}~~16{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}} \\ &&|& \def\mathdef1660#1{\mathtt{0x#1}}\mathdef1660{FD}~~17{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}} \\ &&|& \def\mathdef1661#1{\mathtt{0x#1}}\mathdef1661{FD}~~18{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1664#1{\mathtt{0x#1}}\mathdef1664{FD}~~35{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}} \\ &&|& \def\mathdef1665#1{\mathtt{0x#1}}\mathdef1665{FD}~~36{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}} \\ &&|& \def\mathdef1666#1{\mathtt{0x#1}}\mathdef1666{FD}~~37{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef1667#1{\mathtt{0x#1}}\mathdef1667{FD}~~38{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_u} \\ &&|& \def\mathdef1668#1{\mathtt{0x#1}}\mathdef1668{FD}~~39{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef1669#1{\mathtt{0x#1}}\mathdef1669{FD}~~40{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_u} \\ &&|& \def\mathdef1670#1{\mathtt{0x#1}}\mathdef1670{FD}~~41{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef1671#1{\mathtt{0x#1}}\mathdef1671{FD}~~42{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_u} \\ &&|& \def\mathdef1672#1{\mathtt{0x#1}}\mathdef1672{FD}~~43{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_s} \\ &&|& \def\mathdef1673#1{\mathtt{0x#1}}\mathdef1673{FD}~~44{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1674#1{\mathtt{0x#1}}\mathdef1674{FD}~~45{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}} \\ &&|& \def\mathdef1675#1{\mathtt{0x#1}}\mathdef1675{FD}~~46{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}} \\ &&|& \def\mathdef1676#1{\mathtt{0x#1}}\mathdef1676{FD}~~47{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef1677#1{\mathtt{0x#1}}\mathdef1677{FD}~~48{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_u} \\ &&|& \def\mathdef1678#1{\mathtt{0x#1}}\mathdef1678{FD}~~49{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef1679#1{\mathtt{0x#1}}\mathdef1679{FD}~~50{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_u} \\ &&|& \def\mathdef1680#1{\mathtt{0x#1}}\mathdef1680{FD}~~51{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef1681#1{\mathtt{0x#1}}\mathdef1681{FD}~~52{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_u} \\ &&|& \def\mathdef1682#1{\mathtt{0x#1}}\mathdef1682{FD}~~53{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_s} \\ &&|& \def\mathdef1683#1{\mathtt{0x#1}}\mathdef1683{FD}~~54{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1684#1{\mathtt{0x#1}}\mathdef1684{FD}~~55{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}} \\ &&|& \def\mathdef1685#1{\mathtt{0x#1}}\mathdef1685{FD}~~56{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}} \\ &&|& \def\mathdef1686#1{\mathtt{0x#1}}\mathdef1686{FD}~~57{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef1687#1{\mathtt{0x#1}}\mathdef1687{FD}~~58{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_u} \\ &&|& \def\mathdef1688#1{\mathtt{0x#1}}\mathdef1688{FD}~~59{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef1689#1{\mathtt{0x#1}}\mathdef1689{FD}~~60{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_u} \\ &&|& \def\mathdef1690#1{\mathtt{0x#1}}\mathdef1690{FD}~~61{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef1691#1{\mathtt{0x#1}}\mathdef1691{FD}~~62{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_u} \\ &&|& \def\mathdef1692#1{\mathtt{0x#1}}\mathdef1692{FD}~~63{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_s} \\ &&|& \def\mathdef1693#1{\mathtt{0x#1}}\mathdef1693{FD}~~64{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1694#1{\mathtt{0x#1}}\mathdef1694{FD}~~214{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}} \\ &&|& \def\mathdef1695#1{\mathtt{0x#1}}\mathdef1695{FD}~~215{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}} \\ &&|& \def\mathdef1696#1{\mathtt{0x#1}}\mathdef1696{FD}~~216{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef1697#1{\mathtt{0x#1}}\mathdef1697{FD}~~217{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef1698#1{\mathtt{0x#1}}\mathdef1698{FD}~~218{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef1699#1{\mathtt{0x#1}}\mathdef1699{FD}~~219{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1700#1{\mathtt{0x#1}}\mathdef1700{FD}~~65{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}} \\ &&|& \def\mathdef1701#1{\mathtt{0x#1}}\mathdef1701{FD}~~66{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}} \\ &&|& \def\mathdef1702#1{\mathtt{0x#1}}\mathdef1702{FD}~~67{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}} \\ &&|& \def\mathdef1703#1{\mathtt{0x#1}}\mathdef1703{FD}~~68{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}} \\ &&|& \def\mathdef1704#1{\mathtt{0x#1}}\mathdef1704{FD}~~69{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}} \\ &&|& \def\mathdef1705#1{\mathtt{0x#1}}\mathdef1705{FD}~~70{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1706#1{\mathtt{0x#1}}\mathdef1706{FD}~~71{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}} \\ &&|& \def\mathdef1707#1{\mathtt{0x#1}}\mathdef1707{FD}~~72{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}} \\ &&|& \def\mathdef1708#1{\mathtt{0x#1}}\mathdef1708{FD}~~73{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}} \\ &&|& \def\mathdef1709#1{\mathtt{0x#1}}\mathdef1709{FD}~~74{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}} \\ &&|& \def\mathdef1710#1{\mathtt{0x#1}}\mathdef1710{FD}~~75{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}} \\ &&|& \def\mathdef1711#1{\mathtt{0x#1}}\mathdef1711{FD}~~76{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1712#1{\mathtt{0x#1}}\mathdef1712{FD}~~77{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{not}} \\ &&|& \def\mathdef1713#1{\mathtt{0x#1}}\mathdef1713{FD}~~78{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{and}} \\ &&|& \def\mathdef1714#1{\mathtt{0x#1}}\mathdef1714{FD}~~79{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{andnot}} \\ &&|& \def\mathdef1715#1{\mathtt{0x#1}}\mathdef1715{FD}~~80{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{or}} \\ &&|& \def\mathdef1716#1{\mathtt{0x#1}}\mathdef1716{FD}~~81{:}\href{../binary/values.html#binary-int}{\def\mathdef1370

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1365#1{{}}\mathdef1365{指令}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1719#1{\mathtt{0x#1}}\mathdef1719{FD}~~96{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}} \\ &&|& \def\mathdef1720#1{\mathtt{0x#1}}\mathdef1720{FD}~~97{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}} \\ &&|& \def\mathdef1721#1{\mathtt{0x#1}}\mathdef1721{FD}~~98{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{popcnt}} \\ &&|& \def\mathdef1722#1{\mathtt{0x#1}}\mathdef1722{FD}~~99{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}} \\ &&|& \def\mathdef1723#1{\mathtt{0x#1}}\mathdef1723{FD}~~100{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}} \\ &&|& \def\mathdef1724#1{\mathtt{0x#1}}\mathdef1724{FD}~~101{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i16x8\_s} \\ &&|& \def\mathdef1725#1{\mathtt{0x#1}}\mathdef1725{FD}~~102{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i16x8\_u} \\ &&|& \def\mathdef1726#1{\mathtt{0x#1}}\mathdef1726{FD}~~107{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}} \\ &&|& \def\mathdef1727#1{\mathtt{0x#1}}\mathdef1727{FD}~~108{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef1728#1{\mathtt{0x#1}}\mathdef1728{FD}~~109{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef1729#1{\mathtt{0x#1}}\mathdef1729{FD}~~110{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}} \\ &&|& \def\mathdef1730#1{\mathtt{0x#1}}\mathdef1730{FD}~~111{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\mathsf{\_sat\_s} \\ &&|& \def\mathdef1731#1{\mathtt{0x#1}}\mathdef1731{FD}~~112{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\mathsf{\_sat\_u} \\ &&|& \def\mathdef1732#1{\mathtt{0x#1}}\mathdef1732{FD}~~113{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}} \\ &&|& \def\mathdef1733#1{\mathtt{0x#1}}\mathdef1733{FD}~~114{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\mathsf{\_sat\_s} \\ &&|& \def\mathdef1734#1{\mathtt{0x#1}}\mathdef1734{FD}~~115{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\mathsf{\_sat\_u} \\ &&|& \def\mathdef1735#1{\mathtt{0x#1}}\mathdef1735{FD}~~118{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_s} \\ &&|& \def\mathdef1736#1{\mathtt{0x#1}}\mathdef1736{FD}~~119{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_u} \\ &&|& \def\mathdef1737#1{\mathtt{0x#1}}\mathdef1737{FD}~~120{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_s} \\ &&|& \def\mathdef1738#1{\mathtt{0x#1}}\mathdef1738{FD}~~121{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_u} \\ &&|& \def\mathdef1739#1{\mathtt{0x#1}}\mathdef1739{FD}~~123{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{avgr}}\mathsf{\_u} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1365#1{{}}\mathdef1365{指令}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1740#1{\mathtt{0x#1}}\mathdef1740{FD}~~124{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extadd\_pairwise}}\mathsf{\_i8x16\_s}\\ &&|& \def\mathdef1741#1{\mathtt{0x#1}}\mathdef1741{FD}~~125{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extadd\_pairwise}}\mathsf{\_i8x16\_u}\\ &&|& \def\mathdef1742#1{\mathtt{0x#1}}\mathdef1742{FD}~~128{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}} \\ &&|& \def\mathdef1743#1{\mathtt{0x#1}}\mathdef1743{FD}~~129{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}} \\ &&|& \def\mathdef1744#1{\mathtt{0x#1}}\mathdef1744{FD}~~130{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{q15mulr\_sat}}\mathsf{\_s} \\ &&|& \def\mathdef1745#1{\mathtt{0x#1}}\mathdef1745{FD}~~131{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}} \\ &&|& \def\mathdef1746#1{\mathtt{0x#1}}\mathdef1746{FD}~~132{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}} \\ &&|& \def\mathdef1747#1{\mathtt{0x#1}}\mathdef1747{FD}~~133{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i32x4\_s} \\ &&|& \def\mathdef1748#1{\mathtt{0x#1}}\mathdef1748{FD}~~134{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i32x4\_u} \\ &&|& \def\mathdef1749#1{\mathtt{0x#1}}\mathdef1749{FD}~~135{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i8x16\_s} \\ &&|& \def\mathdef1750#1{\mathtt{0x#1}}\mathdef1750{FD}~~136{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i8x16\_s} \\ &&|& \def\mathdef1751#1{\mathtt{0x#1}}\mathdef1751{FD}~~137{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i8x16\_u} \\ &&|& \def\mathdef1752#1{\mathtt{0x#1}}\mathdef1752{FD}~~138{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i8x16\_u} \\ &&|& \def\mathdef1753#1{\mathtt{0x#1}}\mathdef1753{FD}~~139{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}} \\ &&|& \def\mathdef1754#1{\mathtt{0x#1}}\mathdef1754{FD}~~140{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef1755#1{\mathtt{0x#1}}\mathdef1755{FD}~~141{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef1756#1{\mathtt{0x#1}}\mathdef1756{FD}~~142{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}} \\ &&|& \def\mathdef1757#1{\mathtt{0x#1}}\mathdef1757{FD}~~143{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\mathsf{\_sat\_s} \\ &&|& \def\mathdef1758#1{\mathtt{0x#1}}\mathdef1758{FD}~~144{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\mathsf{\_sat\_u} \\ &&|& \def\mathdef1759#1{\mathtt{0x#1}}\mathdef1759{FD}~~145{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}} \\ &&|& \def\mathdef1760#1{\mathtt{0x#1}}\mathdef1760{FD}~~146{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\mathsf{\_sat\_s} \\ &&|& \def\mathdef1761#1{\mathtt{0x#1}}\mathdef1761{FD}~~147{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\mathsf{\_sat\_u} \\ &&|& \def\mathdef1762#1{\mathtt{0x#1}}\mathdef1762{FD}~~149{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}} \\ &&|& \def\mathdef1763#1{\mathtt{0x#1}}\mathdef1763{FD}~~150{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_s} \\ &&|& \def\mathdef1764#1{\mathtt{0x#1}}\mathdef1764{FD}~~151{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_u} \\ &&|& \def\mathdef1765#1{\mathtt{0x#1}}\mathdef1765{FD}~~152{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_s} \\ &&|& \def\mathdef1766#1{\mathtt{0x#1}}\mathdef1766{FD}~~153{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_u} \\ &&|& \def\mathdef1767#1{\mathtt{0x#1}}\mathdef1767{FD}~~155{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{avgr}}\mathsf{\_u} \\ &&|& \def\mathdef1768#1{\mathtt{0x#1}}\mathdef1768{FD}~~156{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i8x16\_s}\\ &&|& \def\mathdef1769#1{\mathtt{0x#1}}\mathdef1769{FD}~~157{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i8x16\_s}\\ &&|& \def\mathdef1770#1{\mathtt{0x#1}}\mathdef1770{FD}~~158{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i8x16\_u}\\ &&|& \def\mathdef1771#1{\mathtt{0x#1}}\mathdef1771{FD}~~159{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i8x16\_u}\\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1772#1{\mathtt{0x#1}}\mathdef1772{FD}~~126{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extadd\_pairwise}}\mathsf{\_i16x8\_s}\\ &&|& \def\mathdef1773#1{\mathtt{0x#1}}\mathdef1773{FD}~~127{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extadd\_pairwise}}\mathsf{\_i16x8\_u}\\ &&|& \def\mathdef1774#1{\mathtt{0x#1}}\mathdef1774{FD}~~160{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}} \\ &&|& \def\mathdef1775#1{\mathtt{0x#1}}\mathdef1775{FD}~~161{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}} \\ &&|& \def\mathdef1776#1{\mathtt{0x#1}}\mathdef1776{FD}~~163{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}} \\ &&|& \def\mathdef1777#1{\mathtt{0x#1}}\mathdef1777{FD}~~164{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}} \\ &&|& \def\mathdef1778#1{\mathtt{0x#1}}\mathdef1778{FD}~~167{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i16x8\_s} \\ &&|& \def\mathdef1779#1{\mathtt{0x#1}}\mathdef1779{FD}~~168{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i16x8\_s} \\ &&|& \def\mathdef1780#1{\mathtt{0x#1}}\mathdef1780{FD}~~169{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i16x8\_u} \\ &&|& \def\mathdef1781#1{\mathtt{0x#1}}\mathdef1781{FD}~~170{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i16x8\_u} \\ &&|& \def\mathdef1782#1{\mathtt{0x#1}}\mathdef1782{FD}~~171{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}} \\ &&|& \def\mathdef1783#1{\mathtt{0x#1}}\mathdef1783{FD}~~172{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef1784#1{\mathtt{0x#1}}\mathdef1784{FD}~~173{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef1785#1{\mathtt{0x#1}}\mathdef1785{FD}~~174{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}} \\ &&|& \def\mathdef1786#1{\mathtt{0x#1}}\mathdef1786{FD}~~177{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}} \\ &&|& \def\mathdef1787#1{\mathtt{0x#1}}\mathdef1787{FD}~~181{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}} \\ &&|& \def\mathdef1788#1{\mathtt{0x#1}}\mathdef1788{FD}~~182{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_s} \\ &&|& \def\mathdef1789#1{\mathtt{0x#1}}\mathdef1789{FD}~~183{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_u} \\ &&|& \def\mathdef1790#1{\mathtt{0x#1}}\mathdef1790{FD}~~184{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_s} \\ &&|& \def\mathdef1791#1{\mathtt{0x#1}}\mathdef1791{FD}~~185{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_u} \\ &&|& \def\mathdef1792#1{\mathtt{0x#1}}\mathdef1792{FD}~~186{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{dot}}\mathsf{\_i16x8\_s}\\ &&|& \def\mathdef1793#1{\mathtt{0x#1}}\mathdef1793{FD}~~188{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i16x8\_s}\\ &&|& \def\mathdef1794#1{\mathtt{0x#1}}\mathdef1794{FD}~~189{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i16x8\_s}\\ &&|& \def\mathdef1795#1{\mathtt{0x#1}}\mathdef1795{FD}~~190{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i16x8\_u}\\ &&|& \def\mathdef1796#1{\mathtt{0x#1}}\mathdef1796{FD}~~191{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1797#1{\mathtt{0x#1}}\mathdef1797{FD}~~192{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}} \\ &&|& \def\mathdef1798#1{\mathtt{0x#1}}\mathdef1798{FD}~~193{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}} \\ &&|& \def\mathdef1799#1{\mathtt{0x#1}}\mathdef1799{FD}~~195{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}} \\ &&|& \def\mathdef1800#1{\mathtt{0x#1}}\mathdef1800{FD}~~196{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}} \\ &&|& \def\mathdef1801#1{\mathtt{0x#1}}\mathdef1801{FD}~~199{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i32x4\_s} \\ &&|& \def\mathdef1802#1{\mathtt{0x#1}}\mathdef1802{FD}~~200{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i32x4\_s} \\ &&|& \def\mathdef1803#1{\mathtt{0x#1}}\mathdef1803{FD}~~201{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_low\_i32x4\_u} \\ &&|& \def\mathdef1804#1{\mathtt{0x#1}}\mathdef1804{FD}~~202{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extend}}\mathsf{\_high\_i32x4\_u} \\ &&|& \def\mathdef1805#1{\mathtt{0x#1}}\mathdef1805{FD}~~203{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}} \\ &&|& \def\mathdef1806#1{\mathtt{0x#1}}\mathdef1806{FD}~~204{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef1807#1{\mathtt{0x#1}}\mathdef1807{FD}~~205{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef1808#1{\mathtt{0x#1}}\mathdef1808{FD}~~206{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}} \\ &&|& \def\mathdef1809#1{\mathtt{0x#1}}\mathdef1809{FD}~~209{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}} \\ &&|& \def\mathdef1810#1{\mathtt{0x#1}}\mathdef1810{FD}~~213{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}} \\ &&|& \def\mathdef1811#1{\mathtt{0x#1}}\mathdef1811{FD}~~220{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i32x4\_s}\\ &&|& \def\mathdef1812#1{\mathtt{0x#1}}\mathdef1812{FD}~~221{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_high\_i32x4\_s}\\ &&|& \def\mathdef1813#1{\mathtt{0x#1}}\mathdef1813{FD}~~222{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extmul}}\mathsf{\_low\_i32x4\_u}\\ &&|& \def\mathdef1814#1{\mathtt{0x#1}}\mathdef1814{FD}~~223{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1365#1{{}}\mathdef1365{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1815#1{\mathtt{0x#1}}\mathdef1815{FD}~~103{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ceil}} \\ &&|& \def\mathdef1816#1{\mathtt{0x#1}}\mathdef1816{FD}~~104{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{floor}} \\ &&|& \def\mathdef1817#1{\mathtt{0x#1}}\mathdef1817{FD}~~105{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc}} \\ &&|& \def\mathdef1818#1{\mathtt{0x#1}}\mathdef1818{FD}~~106{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{nearest}} \\ &&|& \def\mathdef1819#1{\mathtt{0x#1}}\mathdef1819{FD}~~224{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}} \\ &&|& \def\mathdef1820#1{\mathtt{0x#1}}\mathdef1820{FD}~~225{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}} \\ &&|& \def\mathdef1821#1{\mathtt{0x#1}}\mathdef1821{FD}~~227{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sqrt}} \\ &&|& \def\mathdef1822#1{\mathtt{0x#1}}\mathdef1822{FD}~~228{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}} \\ &&|& \def\mathdef1823#1{\mathtt{0x#1}}\mathdef1823{FD}~~229{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}} \\ &&|& \def\mathdef1824#1{\mathtt{0x#1}}\mathdef1824{FD}~~230{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}} \\ &&|& \def\mathdef1825#1{\mathtt{0x#1}}\mathdef1825{FD}~~231{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{div}} \\ &&|& \def\mathdef1826#1{\mathtt{0x#1}}\mathdef1826{FD}~~232{:}\href{../binary/values

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1365#1{{}}\mathdef1365{指令}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{指令}}} &\phantom{::=}& \phantom{\dots} && \phantom{向量指令名称} \\[-2ex] &&|& \def\mathdef1830#1{\mathtt{0x#1}}\mathdef1830{FD}~~116{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ceil}} \\ &&|& \def\mathdef1831#1{\mathtt{0x#1}}\mathdef1831{FD}~~117{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{floor}} \\ &&|& \def\mathdef1832#1{\mathtt{0x#1}}\mathdef1832{FD}~~122{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc}} \\ &&|& \def\mathdef1833#1{\mathtt{0x#1}}\mathdef1833{FD}~~148{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{nearest}} \\ &&|& \def\mathdef1834#1{\mathtt{0x#1}}\mathdef1834{FD}~~236{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}} \\ &&|& \def\mathdef1835#1{\mathtt{0x#1}}\mathdef1835{FD}~~237{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}} \\ &&|& \def\mathdef1836#1{\mathtt{0x#1}}\mathdef1836{FD}~~239{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sqrt}} \\ &&|& \def\mathdef1837#1{\mathtt{0x#1}}\mathdef1837{FD}~~240{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}} \\ &&|& \def\mathdef1838#1{\mathtt{0x#1}}\mathdef1838{FD}~~241{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}} \\ &&|& \def\mathdef1839#1{\mathtt{0x#1}}\mathdef1839{FD}~~242{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}} \\ &&|& \def\mathdef1840#1{\mathtt{0x#1}}\mathdef1840{FD}~~243{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{div}} \\ &&|& \def\mathdef1841#1{\mathtt{0x#1}}\mathdef1841{FD}~~244{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}} \\ &&|& \def\mathdef1842#1{\mathtt{0x#1}}\mathdef1842{FD}~~245{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}} \\ &&|& \def\mathdef1843#1{\mathtt{0x#1}}\mathdef1843{FD}~~246{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{pmin}} \\ &&|& \def\mathdef1844#1{\mathtt{0x#1}}\mathdef1844{FD}~~247{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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\mathdef1365#1{{}}\mathdef1365{指令}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{指令}}} &\phantom{::=}& \phantom{\dots} && \phantom{向量指令名称} \\[-2ex] &&|& \def\mathdef1845#1{\mathtt{0x#1}}\mathdef1845{FD}~~248{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_f32x4\_s} \\ &&|& \def\mathdef1846#1{\mathtt{0x#1}}\mathdef1846{FD}~~249{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}}\mathsf{\_sat\_f32x4\_u} \\ &&|& \def\mathdef1847#1{\mathtt{0x#1}}\mathdef1847{FD}~~250{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_i32x4\_s} \\ &&|& \def\mathdef1848#1{\mathtt{0x#1}}\mathdef1848{FD}~~251{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_i32x4\_u} \\ &&|& \def\mathdef1849#1{\mathtt{0x#1}}\mathdef1849{FD}~~252{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc}}\mathsf{\_sat\_f64x2\_s\_zero}\\ &&|& \def\mathdef1850#1{\mathtt{0x#1}}\mathdef1850{FD}~~253{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc}}\mathsf{\_sat\_f64x2\_u\_zero}\\ &&|& \def\mathdef1851#1{\mathtt{0x#1}}\mathdef1851{FD}~~254{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{convert}}\mathsf{\_low\_i32x4\_s}\\ &&|& \def\mathdef1852#1{\mathtt{0x#1}}\mathdef1852{FD}~~255{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{convert}}\mathsf{\_low\_i32x4\_u}\\ &&|& \def\mathdef1853#1{\mathtt{0x#1}}\mathdef1853{FD}~~94{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{demote}}\mathsf{\_f64x2\_zero}\\ &&|& \def\mathdef1854#1{\mathtt{0x#1}}\mathdef1854{FD}~~95{:}\href{../binary/values.html#binary-int}{\def\mathdef1370#1{{\mathtt{u}#1}}\mathdef1370{\mathtt{32}}} &\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}\]

表达式¶

表达式由它们的指令序列编码，以一个显式的 \(\def\mathdef1855#1{\mathtt{0x#1}}\mathdef1855{0B}\) 操作码（表示 \(\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}}\)）终止。

\[\begin{split}\begin{array}{llclll} \def\mathdef1365#1{{}}\mathdef1365{表达式} & \href{../binary/instructions.html#binary-expr}{\mathtt{expr}} &::=& (\mathit{指令}{:}\href{../binary/instructions.html#binary-instr}{\mathtt{指令}})^\ast~~\def\mathdef1856#1{\mathtt{0x#1}}\mathdef1856{0B} &\Rightarrow& \mathit{指令}^\ast~\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}} \\ \end{array}\end{split}\]