Instructions

Instructions are encoded by opcodes. Each opcode is represented by a single byte, and is followed by the instruction’s immediate arguments, where present. The only exception are structured control instructions, which consist of several opcodes bracketing their nested instruction sequences.

Note

Gaps in the byte code ranges for encoding instructions are reserved for future extensions.

Control Instructions

Control instructions have varying encodings. For structured instructions, the instruction sequences forming nested blocks are terminated with explicit opcodes for \(\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}}\) and \(\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{else}}\).

Block types are encoded in special compressed form, by either the byte \(\def\mathdef1551#1{\mathtt{0x#1}}\mathdef1551{40}\) indicating the empty type, as a single value type, or as a type index encoded as a positive signed integer.

\[\begin{split}\begin{array}{@{}llcllll} \def\mathdef1512#1{{}}\mathdef1512{block type} & \href{../binary/instructions.html#binary-blocktype}{\mathtt{blocktype}} &::=& \def\mathdef1552#1{\mathtt{0x#1}}\mathdef1552{40} &\Rightarrow& \epsilon \\ &&|& t{:}\href{../binary/types.html#binary-valtype}{\mathtt{valtype}} &\Rightarrow& t \\ &&|& x{:}\href{../binary/values.html#binary-int}{\def\mathdef1522#1{{\mathtt{s}#1}}\mathdef1522{\mathtt{33}}} &\Rightarrow& x \qquad (\mathrel{\mbox{if}} x \geq 0) \\ \def\mathdef1512#1{{}}\mathdef1512{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \def\mathdef1553#1{\mathtt{0x#1}}\mathdef1553{00} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{unreachable}} \\ &&|& \def\mathdef1554#1{\mathtt{0x#1}}\mathdef1554{01} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{nop}} \\ &&|& \def\mathdef1555#1{\mathtt{0x#1}}\mathdef1555{02}~~\mathit{bt}{:}\href{../binary/instructions.html#binary-blocktype}{\mathtt{blocktype}}~~(\mathit{in}{:}\href{../binary/instructions.html#binary-instr}{\mathtt{instr}})^\ast~~\def\mathdef1556#1{\mathtt{0x#1}}\mathdef1556{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\mathdef1557#1{\mathtt{0x#1}}\mathdef1557{03}~~\mathit{bt}{:}\href{../binary/instructions.html#binary-blocktype}{\mathtt{blocktype}}~~(\mathit{in}{:}\href{../binary/instructions.html#binary-instr}{\mathtt{instr}})^\ast~~\def\mathdef1558#1{\mathtt{0x#1}}\mathdef1558{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\mathdef1559#1{\mathtt{0x#1}}\mathdef1559{04}~~\mathit{bt}{:}\href{../binary/instructions.html#binary-blocktype}{\mathtt{blocktype}}~~(\mathit{in}{:}\href{../binary/instructions.html#binary-instr}{\mathtt{instr}})^\ast~~\def\mathdef1560#1{\mathtt{0x#1}}\mathdef1560{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\mathdef1561#1{\mathtt{0x#1}}\mathdef1561{04}~~\mathit{bt}{:}\href{../binary/instructions.html#binary-blocktype}{\mathtt{blocktype}}~~(\mathit{in}_1{:}\href{../binary/instructions.html#binary-instr}{\mathtt{instr}})^\ast\\&&&~~ \def\mathdef1562#1{\mathtt{0x#1}}\mathdef1562{05}~~(\mathit{in}_2{:}\href{../binary/instructions.html#binary-instr}{\mathtt{instr}})^\ast~~\def\mathdef1563#1{\mathtt{0x#1}}\mathdef1563{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\mathdef1564#1{\mathtt{0x#1}}\mathdef1564{0C}~~l{:}\href{../binary/modules.html#binary-labelidx}{\mathtt{labelidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br}}~l \\ &&|& \def\mathdef1565#1{\mathtt{0x#1}}\mathdef1565{0D}~~l{:}\href{../binary/modules.html#binary-labelidx}{\mathtt{labelidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br\_if}}~l \\ &&|& \def\mathdef1566#1{\mathtt{0x#1}}\mathdef1566{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\mathdef1567#1{\mathtt{0x#1}}\mathdef1567{0F} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{return}} \\ &&|& \def\mathdef1568#1{\mathtt{0x#1}}\mathdef1568{10}~~x{:}\href{../binary/modules.html#binary-funcidx}{\mathtt{funcidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{call}}~x \\ &&|& \def\mathdef1569#1{\mathtt{0x#1}}\mathdef1569{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 \\ &&|& \def\mathdef1570#1{\mathtt{0x#1}}\mathdef1570{12}~~x{:}\href{../binary/modules.html#binary-funcidx}{\mathtt{funcidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{return\_call}}~x \\ &&|& \def\mathdef1571#1{\mathtt{0x#1}}\mathdef1571{13}~~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{return\_call\_indirect}}~x~y \\ &&|& \def\mathdef1572#1{\mathtt{0x#1}}\mathdef1572{14}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{call\_ref}}~x \\ &&|& \def\mathdef1573#1{\mathtt{0x#1}}\mathdef1573{15}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{return\_call\_ref}}~x \\ &&|& \def\mathdef1574#1{\mathtt{0x#1}}\mathdef1574{D5}~~l{:}\href{../binary/modules.html#binary-labelidx}{\mathtt{labelidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br\_on\_null}}~l \\ &&|& \def\mathdef1575#1{\mathtt{0x#1}}\mathdef1575{D6}~~l{:}\href{../binary/modules.html#binary-labelidx}{\mathtt{labelidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br\_on\_non\_null}}~l \\ &&|& \def\mathdef1576#1{\mathtt{0x#1}}\mathdef1576{FB}~~24{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~(\href{../syntax/types.html#syntax-reftype}{\mathsf{null}}_1^?,\href{../syntax/types.html#syntax-reftype}{\mathsf{null}}_2^?){:}\href{../binary/instructions.html#binary-castflags}{\mathtt{castflags}}\\&&&~~~~l{:}\href{../binary/modules.html#binary-labelidx}{\mathtt{labelidx}}~~\mathit{ht}_1{:}\href{../binary/types.html#binary-heaptype}{\mathtt{heaptype}}~~\mathit{ht}_2{:}\href{../binary/types.html#binary-heaptype}{\mathtt{heaptype}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br\_on\_cast}}~l~(\href{../syntax/types.html#syntax-reftype}{\mathsf{ref}}~\href{../syntax/types.html#syntax-reftype}{\mathsf{null}}_1^?~\mathit{ht}_1)~(\href{../syntax/types.html#syntax-reftype}{\mathsf{ref}}~\href{../syntax/types.html#syntax-reftype}{\mathsf{null}}_2^?~\mathit{ht}_2) \\ &&|& \def\mathdef1577#1{\mathtt{0x#1}}\mathdef1577{FB}~~25{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~(\href{../syntax/types.html#syntax-reftype}{\mathsf{null}}_1^?,\href{../syntax/types.html#syntax-reftype}{\mathsf{null}}_2^?){:}\href{../binary/instructions.html#binary-castflags}{\mathtt{castflags}}\\&&&~~~~l{:}\href{../binary/modules.html#binary-labelidx}{\mathtt{labelidx}}~~\mathit{ht}_1{:}\href{../binary/types.html#binary-heaptype}{\mathtt{heaptype}}~~\mathit{ht}_2{:}\href{../binary/types.html#binary-heaptype}{\mathtt{heaptype}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-control}{\mathsf{br\_on\_cast\_fail}}~l~(\href{../syntax/types.html#syntax-reftype}{\mathsf{ref}}~\href{../syntax/types.html#syntax-reftype}{\mathsf{null}}_1^?~\mathit{ht}_1)~(\href{../syntax/types.html#syntax-reftype}{\mathsf{ref}}~\href{../syntax/types.html#syntax-reftype}{\mathsf{null}}_2^?~\mathit{ht}_2) \\ \def\mathdef1512#1{{}}\mathdef1512{cast flags} & \href{../binary/instructions.html#binary-castflags}{\mathtt{castflags}} &::=& 0{:}\href{../binary/values.html#binary-int}{\def\mathdef1515#1{{\mathtt{u}#1}}\mathdef1515{\mathtt{8}}} &\Rightarrow& (\epsilon, \epsilon) \\ &&|& 1{:}\href{../binary/values.html#binary-int}{\def\mathdef1515#1{{\mathtt{u}#1}}\mathdef1515{\mathtt{8}}} &\Rightarrow& (\href{../syntax/types.html#syntax-reftype}{\mathsf{null}}, \epsilon) \\ &&|& 2{:}\href{../binary/values.html#binary-int}{\def\mathdef1515#1{{\mathtt{u}#1}}\mathdef1515{\mathtt{8}}} &\Rightarrow& (\epsilon, \href{../syntax/types.html#syntax-reftype}{\mathsf{null}}) \\ &&|& 3{:}\href{../binary/values.html#binary-int}{\def\mathdef1515#1{{\mathtt{u}#1}}\mathdef1515{\mathtt{8}}} &\Rightarrow& (\href{../syntax/types.html#syntax-reftype}{\mathsf{null}}, \href{../syntax/types.html#syntax-reftype}{\mathsf{null}}) \\ \end{array}\end{split}\]

Note

The \(\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{else}}\) opcode \(\def\mathdef1578#1{\mathtt{0x#1}}\mathdef1578{05}\) in the encoding of an \(\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{if}}\) instruction can be omitted if the following instruction sequence is empty.

Unlike any other occurrence, the type index in a block type is encoded as a positive signed integer, so that its signed LEB128 bit pattern cannot collide with the encoding of value types or the special code \(\def\mathdef1579#1{\mathtt{0x#1}}\mathdef1579{40}\), which correspond to the LEB128 encoding of negative integers. To avoid any loss in the range of allowed indices, it is treated as a 33 bit signed integer.

Reference Instructions

Generic reference instructions are represented by single byte codes, others use prefixes and type operands.

\[\begin{split}\begin{array}{llclll} \def\mathdef1512#1{{}}\mathdef1512{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\ &&|& \def\mathdef1580#1{\mathtt{0x#1}}\mathdef1580{D0}~~t{:}\href{../binary/types.html#binary-heaptype}{\mathtt{heaptype}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref.null}}~t \\ &&|& \def\mathdef1581#1{\mathtt{0x#1}}\mathdef1581{D1} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref.is\_null}} \\ &&|& \def\mathdef1582#1{\mathtt{0x#1}}\mathdef1582{D2}~~x{:}\href{../binary/modules.html#binary-funcidx}{\mathtt{funcidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref.func}}~x \\ &&|& \def\mathdef1583#1{\mathtt{0x#1}}\mathdef1583{D3} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref.eq}} \\ &&|& \def\mathdef1584#1{\mathtt{0x#1}}\mathdef1584{D4} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref.as\_non\_null}} \\ &&|& \def\mathdef1585#1{\mathtt{0x#1}}\mathdef1585{FB}~~0{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-struct}{\mathsf{struct.new}}~x \\ &&|& \def\mathdef1586#1{\mathtt{0x#1}}\mathdef1586{FB}~~1{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-struct}{\mathsf{struct.new\_default}}~x \\ &&|& \def\mathdef1587#1{\mathtt{0x#1}}\mathdef1587{FB}~~2{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}}~~y{:}\href{../binary/modules.html#binary-fieldidx}{\mathtt{fieldidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-struct}{\mathsf{struct.get}}~x~y \\ &&|& \def\mathdef1588#1{\mathtt{0x#1}}\mathdef1588{FB}~~3{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}}~~y{:}\href{../binary/modules.html#binary-fieldidx}{\mathtt{fieldidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-struct}{\mathsf{struct.get\_s}}~x~y \\ &&|& \def\mathdef1589#1{\mathtt{0x#1}}\mathdef1589{FB}~~4{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}}~~y{:}\href{../binary/modules.html#binary-fieldidx}{\mathtt{fieldidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-struct}{\mathsf{struct.get\_u}}~x~y \\ &&|& \def\mathdef1590#1{\mathtt{0x#1}}\mathdef1590{FB}~~5{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}}~~y{:}\href{../binary/modules.html#binary-fieldidx}{\mathtt{fieldidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-struct}{\mathsf{struct.set}}~x~y \\ &&|& \def\mathdef1591#1{\mathtt{0x#1}}\mathdef1591{FB}~~6{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array.new}}~x \\ &&|& \def\mathdef1592#1{\mathtt{0x#1}}\mathdef1592{FB}~~7{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array.new\_default}}~x \\ &&|& \def\mathdef1593#1{\mathtt{0x#1}}\mathdef1593{FB}~~8{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}}~~n{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array.new\_fixed}}~x~n \\ &&|& \def\mathdef1594#1{\mathtt{0x#1}}\mathdef1594{FB}~~9{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}}~~y{:}\href{../binary/modules.html#binary-dataidx}{\mathtt{dataidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array.new\_data}}~x~y \\ &&|& \def\mathdef1595#1{\mathtt{0x#1}}\mathdef1595{FB}~~10{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}}~~y{:}\href{../binary/modules.html#binary-elemidx}{\mathtt{elemidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array.new\_elem}}~x~y \\ &&|& \def\mathdef1596#1{\mathtt{0x#1}}\mathdef1596{FB}~~11{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array.get}}~x \\ &&|& \def\mathdef1597#1{\mathtt{0x#1}}\mathdef1597{FB}~~12{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array.get\_s}}~x \\ &&|& \def\mathdef1598#1{\mathtt{0x#1}}\mathdef1598{FB}~~13{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array.get\_u}}~x \\ &&|& \def\mathdef1599#1{\mathtt{0x#1}}\mathdef1599{FB}~~14{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array.set}}~x \\ &&|& \def\mathdef1600#1{\mathtt{0x#1}}\mathdef1600{FB}~~15{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array.len}} \\ &&|& \def\mathdef1601#1{\mathtt{0x#1}}\mathdef1601{FB}~~16{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array.fill}}~x \\ &&|& \def\mathdef1602#1{\mathtt{0x#1}}\mathdef1602{FB}~~17{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}}~~y{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array.copy}}~x~y \\ &&|& \def\mathdef1603#1{\mathtt{0x#1}}\mathdef1603{FB}~~18{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}}~~y{:}\href{../binary/modules.html#binary-dataidx}{\mathtt{dataidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array.init\_data}}~x~y \\ &&|& \def\mathdef1604#1{\mathtt{0x#1}}\mathdef1604{FB}~~19{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-typeidx}{\mathtt{typeidx}}~~y{:}\href{../binary/modules.html#binary-elemidx}{\mathtt{elemidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-array}{\mathsf{array.init\_elem}}~x~y \\ &&|& \def\mathdef1605#1{\mathtt{0x#1}}\mathdef1605{FB}~~20{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~\mathit{ht}{:}\href{../binary/types.html#binary-heaptype}{\mathtt{heaptype}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref.test}}~(\href{../syntax/types.html#syntax-reftype}{\mathsf{ref}}~\mathit{ht}) \\ &&|& \def\mathdef1606#1{\mathtt{0x#1}}\mathdef1606{FB}~~21{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~\mathit{ht}{:}\href{../binary/types.html#binary-heaptype}{\mathtt{heaptype}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref.test}}~(\href{../syntax/types.html#syntax-reftype}{\mathsf{ref}}~\href{../syntax/types.html#syntax-reftype}{\mathsf{null}}~\mathit{ht}) \\ &&|& \def\mathdef1607#1{\mathtt{0x#1}}\mathdef1607{FB}~~22{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~\mathit{ht}{:}\href{../binary/types.html#binary-heaptype}{\mathtt{heaptype}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref.cast}}~(\href{../syntax/types.html#syntax-reftype}{\mathsf{ref}}~\mathit{ht}) \\ &&|& \def\mathdef1608#1{\mathtt{0x#1}}\mathdef1608{FB}~~23{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~\mathit{ht}{:}\href{../binary/types.html#binary-heaptype}{\mathtt{heaptype}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-ref}{\mathsf{ref.cast}}~(\href{../syntax/types.html#syntax-reftype}{\mathsf{ref}}~\href{../syntax/types.html#syntax-reftype}{\mathsf{null}}~\mathit{ht}) \\ &&|& \def\mathdef1609#1{\mathtt{0x#1}}\mathdef1609{FB}~~26{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-extern}{\mathsf{any.convert\_extern}} \\ &&|& \def\mathdef1610#1{\mathtt{0x#1}}\mathdef1610{FB}~~27{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-extern}{\mathsf{extern.convert\_any}} \\ &&|& \def\mathdef1611#1{\mathtt{0x#1}}\mathdef1611{FB}~~28{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-i31}{\mathsf{ref.i31}} \\ &&|& \def\mathdef1612#1{\mathtt{0x#1}}\mathdef1612{FB}~~29{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-i31}{\mathsf{i31.get\_s}} \\ &&|& \def\mathdef1613#1{\mathtt{0x#1}}\mathdef1613{FB}~~30{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-i31}{\mathsf{i31.get\_u}} \\ \end{array}\end{split}\]

Parametric Instructions

Parametric instructions are represented by single byte codes, possibly followed by a type annotation.

\[\begin{split}\begin{array}{llclll} \def\mathdef1512#1{{}}\mathdef1512{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\ &&|& \def\mathdef1614#1{\mathtt{0x#1}}\mathdef1614{1A} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-parametric}{\mathsf{drop}} \\ &&|& \def\mathdef1615#1{\mathtt{0x#1}}\mathdef1615{1B} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-parametric}{\mathsf{select}} \\ &&|& \def\mathdef1616#1{\mathtt{0x#1}}\mathdef1616{1C}~~t^\ast{:}\href{../binary/conventions.html#binary-vec}{\mathtt{vec}}(\href{../binary/types.html#binary-valtype}{\mathtt{valtype}}) &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-parametric}{\mathsf{select}}~t^\ast \\ \end{array}\end{split}\]

Variable Instructions

Variable instructions are represented by byte codes followed by the encoding of the respective index.

\[\begin{split}\begin{array}{llclll} \def\mathdef1512#1{{}}\mathdef1512{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\ &&|& \def\mathdef1617#1{\mathtt{0x#1}}\mathdef1617{20}~~x{:}\href{../binary/modules.html#binary-localidx}{\mathtt{localidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{local.get}}~x \\ &&|& \def\mathdef1618#1{\mathtt{0x#1}}\mathdef1618{21}~~x{:}\href{../binary/modules.html#binary-localidx}{\mathtt{localidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{local.set}}~x \\ &&|& \def\mathdef1619#1{\mathtt{0x#1}}\mathdef1619{22}~~x{:}\href{../binary/modules.html#binary-localidx}{\mathtt{localidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{local.tee}}~x \\ &&|& \def\mathdef1620#1{\mathtt{0x#1}}\mathdef1620{23}~~x{:}\href{../binary/modules.html#binary-globalidx}{\mathtt{globalidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{global.get}}~x \\ &&|& \def\mathdef1621#1{\mathtt{0x#1}}\mathdef1621{24}~~x{:}\href{../binary/modules.html#binary-globalidx}{\mathtt{globalidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-variable}{\mathsf{global.set}}~x \\ \end{array}\end{split}\]

Table Instructions

Table instructions are represented either by a single byte or a one byte prefix followed by a variable-length unsigned integer.

\[\begin{split}\begin{array}{llclll} \def\mathdef1512#1{{}}\mathdef1512{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\ &&|& \def\mathdef1622#1{\mathtt{0x#1}}\mathdef1622{25}~~x{:}\href{../binary/modules.html#binary-tableidx}{\mathtt{tableidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table.get}}~x \\ &&|& \def\mathdef1623#1{\mathtt{0x#1}}\mathdef1623{26}~~x{:}\href{../binary/modules.html#binary-tableidx}{\mathtt{tableidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table.set}}~x \\ &&|& \def\mathdef1624#1{\mathtt{0x#1}}\mathdef1624{FC}~~12{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1625#1{\mathtt{0x#1}}\mathdef1625{FC}~~13{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-elemidx}{\mathtt{elemidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{elem.drop}}~x \\ &&|& \def\mathdef1626#1{\mathtt{0x#1}}\mathdef1626{FC}~~14{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1627#1{\mathtt{0x#1}}\mathdef1627{FC}~~15{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-tableidx}{\mathtt{tableidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table.grow}}~x \\ &&|& \def\mathdef1628#1{\mathtt{0x#1}}\mathdef1628{FC}~~16{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-tableidx}{\mathtt{tableidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-table}{\mathsf{table.size}}~x \\ &&|& \def\mathdef1629#1{\mathtt{0x#1}}\mathdef1629{FC}~~17{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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}\]

Memory Instructions

Each variant of memory instruction is encoded with a different byte code. Loads and stores are followed by the encoding of their \(\href{../syntax/instructions.html#syntax-memarg}{\mathit{memarg}}\) immediate.

\[\begin{split}\begin{array}{llclll} \def\mathdef1512#1{{}}\mathdef1512{memory argument} & \href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &::=& a{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~o{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \{ \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{align}}~a,~\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{offset}}~o \} \\ \def\mathdef1512#1{{}}\mathdef1512{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\ &&|& \def\mathdef1630#1{\mathtt{0x#1}}\mathdef1630{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\mathdef1631#1{\mathtt{0x#1}}\mathdef1631{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\mathdef1632#1{\mathtt{0x#1}}\mathdef1632{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\mathdef1633#1{\mathtt{0x#1}}\mathdef1633{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\mathdef1634#1{\mathtt{0x#1}}\mathdef1634{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\mathdef1635#1{\mathtt{0x#1}}\mathdef1635{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\mathdef1636#1{\mathtt{0x#1}}\mathdef1636{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\mathdef1637#1{\mathtt{0x#1}}\mathdef1637{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\mathdef1638#1{\mathtt{0x#1}}\mathdef1638{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\mathdef1639#1{\mathtt{0x#1}}\mathdef1639{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\mathdef1640#1{\mathtt{0x#1}}\mathdef1640{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\mathdef1641#1{\mathtt{0x#1}}\mathdef1641{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\mathdef1642#1{\mathtt{0x#1}}\mathdef1642{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\mathdef1643#1{\mathtt{0x#1}}\mathdef1643{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\mathdef1644#1{\mathtt{0x#1}}\mathdef1644{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\mathdef1645#1{\mathtt{0x#1}}\mathdef1645{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\mathdef1646#1{\mathtt{0x#1}}\mathdef1646{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\mathdef1647#1{\mathtt{0x#1}}\mathdef1647{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\mathdef1648#1{\mathtt{0x#1}}\mathdef1648{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\mathdef1649#1{\mathtt{0x#1}}\mathdef1649{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\mathdef1650#1{\mathtt{0x#1}}\mathdef1650{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\mathdef1651#1{\mathtt{0x#1}}\mathdef1651{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\mathdef1652#1{\mathtt{0x#1}}\mathdef1652{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\mathdef1653#1{\mathtt{0x#1}}\mathdef1653{3F}~~\def\mathdef1654#1{\mathtt{0x#1}}\mathdef1654{00} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.size}} \\ &&|& \def\mathdef1655#1{\mathtt{0x#1}}\mathdef1655{40}~~\def\mathdef1656#1{\mathtt{0x#1}}\mathdef1656{00} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.grow}} \\ &&|& \def\mathdef1657#1{\mathtt{0x#1}}\mathdef1657{FC}~~8{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-dataidx}{\mathtt{dataidx}}~\def\mathdef1658#1{\mathtt{0x#1}}\mathdef1658{00} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.init}}~x \\ &&|& \def\mathdef1659#1{\mathtt{0x#1}}\mathdef1659{FC}~~9{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~x{:}\href{../binary/modules.html#binary-dataidx}{\mathtt{dataidx}} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{data.drop}}~x \\ &&|& \def\mathdef1660#1{\mathtt{0x#1}}\mathdef1660{FC}~~10{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~\def\mathdef1661#1{\mathtt{0x#1}}\mathdef1661{00}~~\def\mathdef1662#1{\mathtt{0x#1}}\mathdef1662{00} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.copy}} \\ &&|& \def\mathdef1663#1{\mathtt{0x#1}}\mathdef1663{FC}~~11{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~\def\mathdef1664#1{\mathtt{0x#1}}\mathdef1664{00} &\Rightarrow& \href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.fill}} \\ \end{array}\end{split}\]

Note

In future versions of WebAssembly, the additional zero bytes occurring in the encoding of the \(\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.size}}\), \(\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.grow}}\), \(\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.copy}}\), and \(\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{memory.fill}}\) instructions may be used to index additional memories.

Numeric Instructions

All variants of numeric instructions are represented by separate byte codes.

The \(\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}\) instructions are followed by the respective literal.

\[\begin{split}\begin{array}{llclll} \def\mathdef1512#1{{}}\mathdef1512{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\&&|& \def\mathdef1665#1{\mathtt{0x#1}}\mathdef1665{41}~~n{:}\href{../binary/values.html#binary-int}{\def\mathdef1525#1{{\mathtt{i}#1}}\mathdef1525{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~n \\ &&|& \def\mathdef1666#1{\mathtt{0x#1}}\mathdef1666{42}~~n{:}\href{../binary/values.html#binary-int}{\def\mathdef1526#1{{\mathtt{i}#1}}\mathdef1526{\mathtt{64}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~n \\ &&|& \def\mathdef1667#1{\mathtt{0x#1}}\mathdef1667{43}~~z{:}\href{../binary/values.html#binary-float}{\def\mathdef1528#1{{\mathtt{f}#1}}\mathdef1528{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~z \\ &&|& \def\mathdef1668#1{\mathtt{0x#1}}\mathdef1668{44}~~z{:}\href{../binary/values.html#binary-float}{\def\mathdef1529#1{{\mathtt{f}#1}}\mathdef1529{\mathtt{64}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{const}}~z \\ \end{array}\end{split}\]

All other numeric instructions are plain opcodes without any immediates.

\[\begin{split}\begin{array}{llclll} \def\mathdef1512#1{{}}\mathdef1512{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots && \phantom{thisshouldbeenough} \\&&|& \def\mathdef1669#1{\mathtt{0x#1}}\mathdef1669{45} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eqz}} \\ &&|& \def\mathdef1670#1{\mathtt{0x#1}}\mathdef1670{46} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef1671#1{\mathtt{0x#1}}\mathdef1671{47} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef1672#1{\mathtt{0x#1}}\mathdef1672{48} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef1673#1{\mathtt{0x#1}}\mathdef1673{49} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_u} \\ &&|& \def\mathdef1674#1{\mathtt{0x#1}}\mathdef1674{4A} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef1675#1{\mathtt{0x#1}}\mathdef1675{4B} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_u} \\ &&|& \def\mathdef1676#1{\mathtt{0x#1}}\mathdef1676{4C} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef1677#1{\mathtt{0x#1}}\mathdef1677{4D} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_u} \\ &&|& \def\mathdef1678#1{\mathtt{0x#1}}\mathdef1678{4E} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}}\mathsf{\_s} \\ &&|& \def\mathdef1679#1{\mathtt{0x#1}}\mathdef1679{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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1680#1{\mathtt{0x#1}}\mathdef1680{50} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eqz}} \\ &&|& \def\mathdef1681#1{\mathtt{0x#1}}\mathdef1681{51} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef1682#1{\mathtt{0x#1}}\mathdef1682{52} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef1683#1{\mathtt{0x#1}}\mathdef1683{53} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef1684#1{\mathtt{0x#1}}\mathdef1684{54} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}}\mathsf{\_u} \\ &&|& \def\mathdef1685#1{\mathtt{0x#1}}\mathdef1685{55} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef1686#1{\mathtt{0x#1}}\mathdef1686{56} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}}\mathsf{\_u} \\ &&|& \def\mathdef1687#1{\mathtt{0x#1}}\mathdef1687{57} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef1688#1{\mathtt{0x#1}}\mathdef1688{58} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}}\mathsf{\_u} \\ &&|& \def\mathdef1689#1{\mathtt{0x#1}}\mathdef1689{59} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}}\mathsf{\_s} \\ &&|& \def\mathdef1690#1{\mathtt{0x#1}}\mathdef1690{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}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1691#1{\mathtt{0x#1}}\mathdef1691{5B} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef1692#1{\mathtt{0x#1}}\mathdef1692{5C} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef1693#1{\mathtt{0x#1}}\mathdef1693{5D} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}} \\ &&|& \def\mathdef1694#1{\mathtt{0x#1}}\mathdef1694{5E} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}} \\ &&|& \def\mathdef1695#1{\mathtt{0x#1}}\mathdef1695{5F} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}} \\ &&|& \def\mathdef1696#1{\mathtt{0x#1}}\mathdef1696{60} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1697#1{\mathtt{0x#1}}\mathdef1697{61} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{eq}} \\ &&|& \def\mathdef1698#1{\mathtt{0x#1}}\mathdef1698{62} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ne}} \\ &&|& \def\mathdef1699#1{\mathtt{0x#1}}\mathdef1699{63} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{lt}} \\ &&|& \def\mathdef1700#1{\mathtt{0x#1}}\mathdef1700{64} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{gt}} \\ &&|& \def\mathdef1701#1{\mathtt{0x#1}}\mathdef1701{65} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{le}} \\ &&|& \def\mathdef1702#1{\mathtt{0x#1}}\mathdef1702{66} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ge}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1703#1{\mathtt{0x#1}}\mathdef1703{67} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{clz}} \\ &&|& \def\mathdef1704#1{\mathtt{0x#1}}\mathdef1704{68} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ctz}} \\ &&|& \def\mathdef1705#1{\mathtt{0x#1}}\mathdef1705{69} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{popcnt}} \\ &&|& \def\mathdef1706#1{\mathtt{0x#1}}\mathdef1706{6A} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef1707#1{\mathtt{0x#1}}\mathdef1707{6B} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef1708#1{\mathtt{0x#1}}\mathdef1708{6C} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef1709#1{\mathtt{0x#1}}\mathdef1709{6D} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_s} \\ &&|& \def\mathdef1710#1{\mathtt{0x#1}}\mathdef1710{6E} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_u} \\ &&|& \def\mathdef1711#1{\mathtt{0x#1}}\mathdef1711{6F} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_s} \\ &&|& \def\mathdef1712#1{\mathtt{0x#1}}\mathdef1712{70} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_u} \\ &&|& \def\mathdef1713#1{\mathtt{0x#1}}\mathdef1713{71} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{and}} \\ &&|& \def\mathdef1714#1{\mathtt{0x#1}}\mathdef1714{72} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{or}} \\ &&|& \def\mathdef1715#1{\mathtt{0x#1}}\mathdef1715{73} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{xor}} \\ &&|& \def\mathdef1716#1{\mathtt{0x#1}}\mathdef1716{74} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shl}} \\ &&|& \def\mathdef1717#1{\mathtt{0x#1}}\mathdef1717{75} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef1718#1{\mathtt{0x#1}}\mathdef1718{76} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef1719#1{\mathtt{0x#1}}\mathdef1719{77} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rotl}} \\ &&|& \def\mathdef1720#1{\mathtt{0x#1}}\mathdef1720{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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1721#1{\mathtt{0x#1}}\mathdef1721{79} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{clz}} \\ &&|& \def\mathdef1722#1{\mathtt{0x#1}}\mathdef1722{7A} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ctz}} \\ &&|& \def\mathdef1723#1{\mathtt{0x#1}}\mathdef1723{7B} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{popcnt}} \\ &&|& \def\mathdef1724#1{\mathtt{0x#1}}\mathdef1724{7C} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef1725#1{\mathtt{0x#1}}\mathdef1725{7D} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef1726#1{\mathtt{0x#1}}\mathdef1726{7E} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef1727#1{\mathtt{0x#1}}\mathdef1727{7F} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_s} \\ &&|& \def\mathdef1728#1{\mathtt{0x#1}}\mathdef1728{80} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}}\mathsf{\_u} \\ &&|& \def\mathdef1729#1{\mathtt{0x#1}}\mathdef1729{81} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_s} \\ &&|& \def\mathdef1730#1{\mathtt{0x#1}}\mathdef1730{82} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rem}}\mathsf{\_u} \\ &&|& \def\mathdef1731#1{\mathtt{0x#1}}\mathdef1731{83} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{and}} \\ &&|& \def\mathdef1732#1{\mathtt{0x#1}}\mathdef1732{84} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{or}} \\ &&|& \def\mathdef1733#1{\mathtt{0x#1}}\mathdef1733{85} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{xor}} \\ &&|& \def\mathdef1734#1{\mathtt{0x#1}}\mathdef1734{86} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shl}} \\ &&|& \def\mathdef1735#1{\mathtt{0x#1}}\mathdef1735{87} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef1736#1{\mathtt{0x#1}}\mathdef1736{88} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef1737#1{\mathtt{0x#1}}\mathdef1737{89} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{rotl}} \\ &&|& \def\mathdef1738#1{\mathtt{0x#1}}\mathdef1738{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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1739#1{\mathtt{0x#1}}\mathdef1739{8B} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{abs}} \\ &&|& \def\mathdef1740#1{\mathtt{0x#1}}\mathdef1740{8C} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{neg}} \\ &&|& \def\mathdef1741#1{\mathtt{0x#1}}\mathdef1741{8D} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ceil}} \\ &&|& \def\mathdef1742#1{\mathtt{0x#1}}\mathdef1742{8E} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{floor}} \\ &&|& \def\mathdef1743#1{\mathtt{0x#1}}\mathdef1743{8F} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}} \\ &&|& \def\mathdef1744#1{\mathtt{0x#1}}\mathdef1744{90} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{nearest}} \\ &&|& \def\mathdef1745#1{\mathtt{0x#1}}\mathdef1745{91} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sqrt}} \\ &&|& \def\mathdef1746#1{\mathtt{0x#1}}\mathdef1746{92} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef1747#1{\mathtt{0x#1}}\mathdef1747{93} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef1748#1{\mathtt{0x#1}}\mathdef1748{94} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef1749#1{\mathtt{0x#1}}\mathdef1749{95} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}} \\ &&|& \def\mathdef1750#1{\mathtt{0x#1}}\mathdef1750{96} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{min}} \\ &&|& \def\mathdef1751#1{\mathtt{0x#1}}\mathdef1751{97} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{max}} \\ &&|& \def\mathdef1752#1{\mathtt{0x#1}}\mathdef1752{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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1753#1{\mathtt{0x#1}}\mathdef1753{99} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{abs}} \\ &&|& \def\mathdef1754#1{\mathtt{0x#1}}\mathdef1754{9A} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{neg}} \\ &&|& \def\mathdef1755#1{\mathtt{0x#1}}\mathdef1755{9B} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{ceil}} \\ &&|& \def\mathdef1756#1{\mathtt{0x#1}}\mathdef1756{9C} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{floor}} \\ &&|& \def\mathdef1757#1{\mathtt{0x#1}}\mathdef1757{9D} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{trunc}} \\ &&|& \def\mathdef1758#1{\mathtt{0x#1}}\mathdef1758{9E} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{nearest}} \\ &&|& \def\mathdef1759#1{\mathtt{0x#1}}\mathdef1759{9F} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sqrt}} \\ &&|& \def\mathdef1760#1{\mathtt{0x#1}}\mathdef1760{A0} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{add}} \\ &&|& \def\mathdef1761#1{\mathtt{0x#1}}\mathdef1761{A1} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{sub}} \\ &&|& \def\mathdef1762#1{\mathtt{0x#1}}\mathdef1762{A2} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{mul}} \\ &&|& \def\mathdef1763#1{\mathtt{0x#1}}\mathdef1763{A3} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{div}} \\ &&|& \def\mathdef1764#1{\mathtt{0x#1}}\mathdef1764{A4} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{min}} \\ &&|& \def\mathdef1765#1{\mathtt{0x#1}}\mathdef1765{A5} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{max}} \\ &&|& \def\mathdef1766#1{\mathtt{0x#1}}\mathdef1766{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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1767#1{\mathtt{0x#1}}\mathdef1767{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\mathdef1768#1{\mathtt{0x#1}}\mathdef1768{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\mathdef1769#1{\mathtt{0x#1}}\mathdef1769{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\mathdef1770#1{\mathtt{0x#1}}\mathdef1770{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\mathdef1771#1{\mathtt{0x#1}}\mathdef1771{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\mathdef1772#1{\mathtt{0x#1}}\mathdef1772{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\mathdef1773#1{\mathtt{0x#1}}\mathdef1773{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\mathdef1774#1{\mathtt{0x#1}}\mathdef1774{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\mathdef1775#1{\mathtt{0x#1}}\mathdef1775{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\mathdef1776#1{\mathtt{0x#1}}\mathdef1776{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\mathdef1777#1{\mathtt{0x#1}}\mathdef1777{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\mathdef1778#1{\mathtt{0x#1}}\mathdef1778{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\mathdef1779#1{\mathtt{0x#1}}\mathdef1779{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\mathdef1780#1{\mathtt{0x#1}}\mathdef1780{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\mathdef1781#1{\mathtt{0x#1}}\mathdef1781{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\mathdef1782#1{\mathtt{0x#1}}\mathdef1782{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\mathdef1783#1{\mathtt{0x#1}}\mathdef1783{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\mathdef1784#1{\mathtt{0x#1}}\mathdef1784{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\mathdef1785#1{\mathtt{0x#1}}\mathdef1785{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\mathdef1786#1{\mathtt{0x#1}}\mathdef1786{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\mathdef1787#1{\mathtt{0x#1}}\mathdef1787{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\mathdef1788#1{\mathtt{0x#1}}\mathdef1788{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\mathdef1789#1{\mathtt{0x#1}}\mathdef1789{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\mathdef1790#1{\mathtt{0x#1}}\mathdef1790{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\mathdef1791#1{\mathtt{0x#1}}\mathdef1791{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}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{thisshouldbeenough} \\[-2ex] &&|& \def\mathdef1792#1{\mathtt{0x#1}}\mathdef1792{C0} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{8\_s} \\ &&|& \def\mathdef1793#1{\mathtt{0x#1}}\mathdef1793{C1} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{16\_s} \\ &&|& \def\mathdef1794#1{\mathtt{0x#1}}\mathdef1794{C2} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{8\_s} \\ &&|& \def\mathdef1795#1{\mathtt{0x#1}}\mathdef1795{C3} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{16\_s} \\ &&|& \def\mathdef1796#1{\mathtt{0x#1}}\mathdef1796{C4} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{extend}}\mathsf{32\_s} \\ \end{array}\end{split}\]

The saturating truncation instructions all have a one byte prefix, whereas the actual opcode is encoded by a variable-length unsigned integer.

\[\begin{split}\begin{array}{llclll} \def\mathdef1512#1{{}}\mathdef1512{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots && \phantom{thisshouldbeenough} \\&&|& \def\mathdef1797#1{\mathtt{0x#1}}\mathdef1797{FC}~~0{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1798#1{\mathtt{0x#1}}\mathdef1798{FC}~~1{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1799#1{\mathtt{0x#1}}\mathdef1799{FC}~~2{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1800#1{\mathtt{0x#1}}\mathdef1800{FC}~~3{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1801#1{\mathtt{0x#1}}\mathdef1801{FC}~~4{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1802#1{\mathtt{0x#1}}\mathdef1802{FC}~~5{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1803#1{\mathtt{0x#1}}\mathdef1803{FC}~~6{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1804#1{\mathtt{0x#1}}\mathdef1804{FC}~~7{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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}\]

Vector Instructions

All variants of vector instructions are represented by separate byte codes. They all have a one byte prefix, whereas the actual opcode is encoded by a variable-length unsigned integer.

Vector loads and stores are followed by the encoding of their \(\href{../syntax/instructions.html#syntax-memarg}{\mathit{memarg}}\) immediate.

\[\begin{split}\begin{array}{llclll} \def\mathdef1512#1{{}}\mathdef1512{lane index} & \href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &::=& l{:}\href{../binary/values.html#binary-byte}{\mathtt{byte}} &\Rightarrow& l \\ \def\mathdef1512#1{{}}\mathdef1512{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\&&|& \def\mathdef1805#1{\mathtt{0x#1}}\mathdef1805{FD}~~0{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}~m \\ &&|& \def\mathdef1806#1{\mathtt{0x#1}}\mathdef1806{FD}~~1{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8x8\_s}~m \\ &&|& \def\mathdef1807#1{\mathtt{0x#1}}\mathdef1807{FD}~~2{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8x8\_u}~m \\ &&|& \def\mathdef1808#1{\mathtt{0x#1}}\mathdef1808{FD}~~3{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16x4\_s}~m \\ &&|& \def\mathdef1809#1{\mathtt{0x#1}}\mathdef1809{FD}~~4{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16x4\_u}~m \\ &&|& \def\mathdef1810#1{\mathtt{0x#1}}\mathdef1810{FD}~~5{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32x2\_s}~m \\ &&|& \def\mathdef1811#1{\mathtt{0x#1}}\mathdef1811{FD}~~6{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32x2\_u}~m \\ &&|& \def\mathdef1812#1{\mathtt{0x#1}}\mathdef1812{FD}~~7{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_splat}~m \\ &&|& \def\mathdef1813#1{\mathtt{0x#1}}\mathdef1813{FD}~~8{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_splat}~m \\ &&|& \def\mathdef1814#1{\mathtt{0x#1}}\mathdef1814{FD}~~9{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_splat}~m \\ &&|& \def\mathdef1815#1{\mathtt{0x#1}}\mathdef1815{FD}~~10{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{64\_splat}~m \\ &&|& \def\mathdef1816#1{\mathtt{0x#1}}\mathdef1816{FD}~~92{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_zero}~m \\ &&|& \def\mathdef1817#1{\mathtt{0x#1}}\mathdef1817{FD}~~93{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{64\_zero}~m \\ &&|& \def\mathdef1818#1{\mathtt{0x#1}}\mathdef1818{FD}~~11{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}~m \\ &&|& \def\mathdef1819#1{\mathtt{0x#1}}\mathdef1819{FD}~~84{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{8\_lane}~m~l \\ &&|& \def\mathdef1820#1{\mathtt{0x#1}}\mathdef1820{FD}~~85{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{16\_lane}~m~l \\ &&|& \def\mathdef1821#1{\mathtt{0x#1}}\mathdef1821{FD}~~86{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{32\_lane}~m~l \\ &&|& \def\mathdef1822#1{\mathtt{0x#1}}\mathdef1822{FD}~~87{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{load}}\mathsf{64\_lane}~m~l \\ &&|& \def\mathdef1823#1{\mathtt{0x#1}}\mathdef1823{FD}~~88{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{8\_lane}~m~l \\ &&|& \def\mathdef1824#1{\mathtt{0x#1}}\mathdef1824{FD}~~89{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{16\_lane}~m~l \\ &&|& \def\mathdef1825#1{\mathtt{0x#1}}\mathdef1825{FD}~~90{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{32\_lane}~m~l \\ &&|& \def\mathdef1826#1{\mathtt{0x#1}}\mathdef1826{FD}~~91{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~m{:}\href{../binary/instructions.html#binary-memarg}{\mathtt{memarg}}~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-memory}{\mathsf{store}}\mathsf{64\_lane}~m~l \\ \end{array}\end{split}\]

The \(\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{const}}\) instruction is followed by 16 immediate bytes, which are converted into a \(\href{../syntax/values.html#syntax-int}{\mathit{i128}}\) in \(\href{../exec/numerics.html#aux-littleendian}{\mathrm{littleendian}}\) byte order:

\[\begin{split}\begin{array}{llclll} \def\mathdef1512#1{{}}\mathdef1512{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\&&|& \def\mathdef1827#1{\mathtt{0x#1}}\mathdef1827{FD}~~12{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~(b{:}\href{../binary/values.html#binary-byte}{\mathtt{byte}})^{16} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{const}}~ \href{../exec/numerics.html#aux-bytes}{\mathrm{bytes}}_{\mathsf{i128}}^{-1}(b_{0}~\dots~b_{15}) \\ \end{array}\end{split}\]

The \(\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shuffle}}\) instruction is also followed by the encoding of 16 \(\href{../syntax/instructions.html#syntax-laneidx}{\mathit{laneidx}}\) immediates.

\[\begin{split}\begin{array}{llclll} \def\mathdef1512#1{{}}\mathdef1512{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\&&|& \def\mathdef1828#1{\mathtt{0x#1}}\mathdef1828{FD}~~13{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~(l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}})^{16} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shuffle}}~l^{16} \\ \end{array}\end{split}\]

\(\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\) and \(\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}\) instructions are followed by the encoding of a \(\href{../syntax/instructions.html#syntax-laneidx}{\mathit{laneidx}}\) immediate.

\[\begin{split}\begin{array}{llclll} \def\mathdef1512#1{{}}\mathdef1512{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots \\&&|& \def\mathdef1829#1{\mathtt{0x#1}}\mathdef1829{FD}~~21{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_s}~l \\ &&|& \def\mathdef1830#1{\mathtt{0x#1}}\mathdef1830{FD}~~22{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_u}~l \\ &&|& \def\mathdef1831#1{\mathtt{0x#1}}\mathdef1831{FD}~~23{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~l \\ &&|& \def\mathdef1832#1{\mathtt{0x#1}}\mathdef1832{FD}~~24{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_s}~l \\ &&|& \def\mathdef1833#1{\mathtt{0x#1}}\mathdef1833{FD}~~25{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}\mathsf{\_u}~l \\ &&|& \def\mathdef1834#1{\mathtt{0x#1}}\mathdef1834{FD}~~26{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~l \\ &&|& \def\mathdef1835#1{\mathtt{0x#1}}\mathdef1835{FD}~~27{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~l \\ &&|& \def\mathdef1836#1{\mathtt{0x#1}}\mathdef1836{FD}~~28{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~l \\ &&|& \def\mathdef1837#1{\mathtt{0x#1}}\mathdef1837{FD}~~29{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~l \\ &&|& \def\mathdef1838#1{\mathtt{0x#1}}\mathdef1838{FD}~~30{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~l \\ &&|& \def\mathdef1839#1{\mathtt{0x#1}}\mathdef1839{FD}~~31{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~l \\ &&|& \def\mathdef1840#1{\mathtt{0x#1}}\mathdef1840{FD}~~32{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~l \\ &&|& \def\mathdef1841#1{\mathtt{0x#1}}\mathdef1841{FD}~~33{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{extract\_lane}}~l \\ &&|& \def\mathdef1842#1{\mathtt{0x#1}}\mathdef1842{FD}~~34{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}}~~l{:}\href{../binary/instructions.html#binary-laneidx}{\mathtt{laneidx}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{replace\_lane}}~l \\ \end{array}\end{split}\]

All other vector instructions are plain opcodes without any immediates.

\[\begin{split}\begin{array}{llclll} \def\mathdef1512#1{{}}\mathdef1512{instruction} & \href{../binary/instructions.html#binary-instr}{\mathtt{instr}} &::=& \dots && \phantom{vechaslongerinstructionnames} \\&&|& \def\mathdef1843#1{\mathtt{0x#1}}\mathdef1843{FD}~~14{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{swizzle}} \\ &&|& \def\mathdef1844#1{\mathtt{0x#1}}\mathdef1844{FD}~~15{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}} \\ &&|& \def\mathdef1845#1{\mathtt{0x#1}}\mathdef1845{FD}~~16{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}} \\ &&|& \def\mathdef1846#1{\mathtt{0x#1}}\mathdef1846{FD}~~17{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}} \\ &&|& \def\mathdef1847#1{\mathtt{0x#1}}\mathdef1847{FD}~~18{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}} \\ &&|& \def\mathdef1848#1{\mathtt{0x#1}}\mathdef1848{FD}~~19{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}} \\ &&|& \def\mathdef1849#1{\mathtt{0x#1}}\mathdef1849{FD}~~20{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{splat}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1850#1{\mathtt{0x#1}}\mathdef1850{FD}~~35{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}} \\ &&|& \def\mathdef1851#1{\mathtt{0x#1}}\mathdef1851{FD}~~36{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}} \\ &&|& \def\mathdef1852#1{\mathtt{0x#1}}\mathdef1852{FD}~~37{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef1853#1{\mathtt{0x#1}}\mathdef1853{FD}~~38{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_u} \\ &&|& \def\mathdef1854#1{\mathtt{0x#1}}\mathdef1854{FD}~~39{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef1855#1{\mathtt{0x#1}}\mathdef1855{FD}~~40{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_u} \\ &&|& \def\mathdef1856#1{\mathtt{0x#1}}\mathdef1856{FD}~~41{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef1857#1{\mathtt{0x#1}}\mathdef1857{FD}~~42{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_u} \\ &&|& \def\mathdef1858#1{\mathtt{0x#1}}\mathdef1858{FD}~~43{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_s} \\ &&|& \def\mathdef1859#1{\mathtt{0x#1}}\mathdef1859{FD}~~44{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1860#1{\mathtt{0x#1}}\mathdef1860{FD}~~45{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}} \\ &&|& \def\mathdef1861#1{\mathtt{0x#1}}\mathdef1861{FD}~~46{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}} \\ &&|& \def\mathdef1862#1{\mathtt{0x#1}}\mathdef1862{FD}~~47{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef1863#1{\mathtt{0x#1}}\mathdef1863{FD}~~48{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_u} \\ &&|& \def\mathdef1864#1{\mathtt{0x#1}}\mathdef1864{FD}~~49{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef1865#1{\mathtt{0x#1}}\mathdef1865{FD}~~50{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_u} \\ &&|& \def\mathdef1866#1{\mathtt{0x#1}}\mathdef1866{FD}~~51{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef1867#1{\mathtt{0x#1}}\mathdef1867{FD}~~52{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_u} \\ &&|& \def\mathdef1868#1{\mathtt{0x#1}}\mathdef1868{FD}~~53{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_s} \\ &&|& \def\mathdef1869#1{\mathtt{0x#1}}\mathdef1869{FD}~~54{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1870#1{\mathtt{0x#1}}\mathdef1870{FD}~~55{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}} \\ &&|& \def\mathdef1871#1{\mathtt{0x#1}}\mathdef1871{FD}~~56{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}} \\ &&|& \def\mathdef1872#1{\mathtt{0x#1}}\mathdef1872{FD}~~57{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef1873#1{\mathtt{0x#1}}\mathdef1873{FD}~~58{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_u} \\ &&|& \def\mathdef1874#1{\mathtt{0x#1}}\mathdef1874{FD}~~59{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef1875#1{\mathtt{0x#1}}\mathdef1875{FD}~~60{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_u} \\ &&|& \def\mathdef1876#1{\mathtt{0x#1}}\mathdef1876{FD}~~61{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef1877#1{\mathtt{0x#1}}\mathdef1877{FD}~~62{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_u} \\ &&|& \def\mathdef1878#1{\mathtt{0x#1}}\mathdef1878{FD}~~63{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ge}}\mathsf{\_s} \\ &&|& \def\mathdef1879#1{\mathtt{0x#1}}\mathdef1879{FD}~~64{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1880#1{\mathtt{0x#1}}\mathdef1880{FD}~~214{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}} \\ &&|& \def\mathdef1881#1{\mathtt{0x#1}}\mathdef1881{FD}~~215{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}} \\ &&|& \def\mathdef1882#1{\mathtt{0x#1}}\mathdef1882{FD}~~216{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}}\mathsf{\_s} \\ &&|& \def\mathdef1883#1{\mathtt{0x#1}}\mathdef1883{FD}~~217{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}}\mathsf{\_s} \\ &&|& \def\mathdef1884#1{\mathtt{0x#1}}\mathdef1884{FD}~~218{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}}\mathsf{\_s} \\ &&|& \def\mathdef1885#1{\mathtt{0x#1}}\mathdef1885{FD}~~219{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1886#1{\mathtt{0x#1}}\mathdef1886{FD}~~65{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}} \\ &&|& \def\mathdef1887#1{\mathtt{0x#1}}\mathdef1887{FD}~~66{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}} \\ &&|& \def\mathdef1888#1{\mathtt{0x#1}}\mathdef1888{FD}~~67{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}} \\ &&|& \def\mathdef1889#1{\mathtt{0x#1}}\mathdef1889{FD}~~68{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}} \\ &&|& \def\mathdef1890#1{\mathtt{0x#1}}\mathdef1890{FD}~~69{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}} \\ &&|& \def\mathdef1891#1{\mathtt{0x#1}}\mathdef1891{FD}~~70{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1892#1{\mathtt{0x#1}}\mathdef1892{FD}~~71{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{eq}} \\ &&|& \def\mathdef1893#1{\mathtt{0x#1}}\mathdef1893{FD}~~72{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ne}} \\ &&|& \def\mathdef1894#1{\mathtt{0x#1}}\mathdef1894{FD}~~73{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{lt}} \\ &&|& \def\mathdef1895#1{\mathtt{0x#1}}\mathdef1895{FD}~~74{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{gt}} \\ &&|& \def\mathdef1896#1{\mathtt{0x#1}}\mathdef1896{FD}~~75{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{le}} \\ &&|& \def\mathdef1897#1{\mathtt{0x#1}}\mathdef1897{FD}~~76{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1898#1{\mathtt{0x#1}}\mathdef1898{FD}~~77{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{not}} \\ &&|& \def\mathdef1899#1{\mathtt{0x#1}}\mathdef1899{FD}~~78{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{and}} \\ &&|& \def\mathdef1900#1{\mathtt{0x#1}}\mathdef1900{FD}~~79{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{andnot}} \\ &&|& \def\mathdef1901#1{\mathtt{0x#1}}\mathdef1901{FD}~~80{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{or}} \\ &&|& \def\mathdef1902#1{\mathtt{0x#1}}\mathdef1902{FD}~~81{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{xor}} \\ &&|& \def\mathdef1903#1{\mathtt{0x#1}}\mathdef1903{FD}~~82{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitselect}} \\ &&|& \def\mathdef1904#1{\mathtt{0x#1}}\mathdef1904{FD}~~83{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{v128}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{any\_true}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1905#1{\mathtt{0x#1}}\mathdef1905{FD}~~96{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}} \\ &&|& \def\mathdef1906#1{\mathtt{0x#1}}\mathdef1906{FD}~~97{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}} \\ &&|& \def\mathdef1907#1{\mathtt{0x#1}}\mathdef1907{FD}~~98{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{popcnt}} \\ &&|& \def\mathdef1908#1{\mathtt{0x#1}}\mathdef1908{FD}~~99{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}} \\ &&|& \def\mathdef1909#1{\mathtt{0x#1}}\mathdef1909{FD}~~100{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}} \\ &&|& \def\mathdef1910#1{\mathtt{0x#1}}\mathdef1910{FD}~~101{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i16x8\_s} \\ &&|& \def\mathdef1911#1{\mathtt{0x#1}}\mathdef1911{FD}~~102{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i16x8\_u} \\ &&|& \def\mathdef1912#1{\mathtt{0x#1}}\mathdef1912{FD}~~107{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}} \\ &&|& \def\mathdef1913#1{\mathtt{0x#1}}\mathdef1913{FD}~~108{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef1914#1{\mathtt{0x#1}}\mathdef1914{FD}~~109{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef1915#1{\mathtt{0x#1}}\mathdef1915{FD}~~110{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}} \\ &&|& \def\mathdef1916#1{\mathtt{0x#1}}\mathdef1916{FD}~~111{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\mathsf{\_sat\_s} \\ &&|& \def\mathdef1917#1{\mathtt{0x#1}}\mathdef1917{FD}~~112{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\mathsf{\_sat\_u} \\ &&|& \def\mathdef1918#1{\mathtt{0x#1}}\mathdef1918{FD}~~113{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}} \\ &&|& \def\mathdef1919#1{\mathtt{0x#1}}\mathdef1919{FD}~~114{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\mathsf{\_sat\_s} \\ &&|& \def\mathdef1920#1{\mathtt{0x#1}}\mathdef1920{FD}~~115{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\mathsf{\_sat\_u} \\ &&|& \def\mathdef1921#1{\mathtt{0x#1}}\mathdef1921{FD}~~118{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_s} \\ &&|& \def\mathdef1922#1{\mathtt{0x#1}}\mathdef1922{FD}~~119{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_u} \\ &&|& \def\mathdef1923#1{\mathtt{0x#1}}\mathdef1923{FD}~~120{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_s} \\ &&|& \def\mathdef1924#1{\mathtt{0x#1}}\mathdef1924{FD}~~121{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i8x16}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_u} \\ &&|& \def\mathdef1925#1{\mathtt{0x#1}}\mathdef1925{FD}~~123{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1926#1{\mathtt{0x#1}}\mathdef1926{FD}~~124{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1927#1{\mathtt{0x#1}}\mathdef1927{FD}~~125{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1928#1{\mathtt{0x#1}}\mathdef1928{FD}~~128{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}} \\ &&|& \def\mathdef1929#1{\mathtt{0x#1}}\mathdef1929{FD}~~129{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}} \\ &&|& \def\mathdef1930#1{\mathtt{0x#1}}\mathdef1930{FD}~~130{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{q15mulr\_sat}}\mathsf{\_s} \\ &&|& \def\mathdef1931#1{\mathtt{0x#1}}\mathdef1931{FD}~~131{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}} \\ &&|& \def\mathdef1932#1{\mathtt{0x#1}}\mathdef1932{FD}~~132{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}} \\ &&|& \def\mathdef1933#1{\mathtt{0x#1}}\mathdef1933{FD}~~133{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i32x4\_s} \\ &&|& \def\mathdef1934#1{\mathtt{0x#1}}\mathdef1934{FD}~~134{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{narrow}}\mathsf{\_i32x4\_u} \\ &&|& \def\mathdef1935#1{\mathtt{0x#1}}\mathdef1935{FD}~~135{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1936#1{\mathtt{0x#1}}\mathdef1936{FD}~~136{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1937#1{\mathtt{0x#1}}\mathdef1937{FD}~~137{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1938#1{\mathtt{0x#1}}\mathdef1938{FD}~~138{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1939#1{\mathtt{0x#1}}\mathdef1939{FD}~~139{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}} \\ &&|& \def\mathdef1940#1{\mathtt{0x#1}}\mathdef1940{FD}~~140{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef1941#1{\mathtt{0x#1}}\mathdef1941{FD}~~141{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef1942#1{\mathtt{0x#1}}\mathdef1942{FD}~~142{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}} \\ &&|& \def\mathdef1943#1{\mathtt{0x#1}}\mathdef1943{FD}~~143{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\mathsf{\_sat\_s} \\ &&|& \def\mathdef1944#1{\mathtt{0x#1}}\mathdef1944{FD}~~144{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}}\mathsf{\_sat\_u} \\ &&|& \def\mathdef1945#1{\mathtt{0x#1}}\mathdef1945{FD}~~145{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}} \\ &&|& \def\mathdef1946#1{\mathtt{0x#1}}\mathdef1946{FD}~~146{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\mathsf{\_sat\_s} \\ &&|& \def\mathdef1947#1{\mathtt{0x#1}}\mathdef1947{FD}~~147{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}}\mathsf{\_sat\_u} \\ &&|& \def\mathdef1948#1{\mathtt{0x#1}}\mathdef1948{FD}~~149{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}} \\ &&|& \def\mathdef1949#1{\mathtt{0x#1}}\mathdef1949{FD}~~150{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_s} \\ &&|& \def\mathdef1950#1{\mathtt{0x#1}}\mathdef1950{FD}~~151{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_u} \\ &&|& \def\mathdef1951#1{\mathtt{0x#1}}\mathdef1951{FD}~~152{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_s} \\ &&|& \def\mathdef1952#1{\mathtt{0x#1}}\mathdef1952{FD}~~153{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_u} \\ &&|& \def\mathdef1953#1{\mathtt{0x#1}}\mathdef1953{FD}~~155{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i16x8}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{avgr}}\mathsf{\_u} \\ &&|& \def\mathdef1954#1{\mathtt{0x#1}}\mathdef1954{FD}~~156{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1955#1{\mathtt{0x#1}}\mathdef1955{FD}~~157{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1956#1{\mathtt{0x#1}}\mathdef1956{FD}~~158{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1957#1{\mathtt{0x#1}}\mathdef1957{FD}~~159{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1958#1{\mathtt{0x#1}}\mathdef1958{FD}~~126{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1959#1{\mathtt{0x#1}}\mathdef1959{FD}~~127{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1960#1{\mathtt{0x#1}}\mathdef1960{FD}~~160{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}} \\ &&|& \def\mathdef1961#1{\mathtt{0x#1}}\mathdef1961{FD}~~161{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}} \\ &&|& \def\mathdef1962#1{\mathtt{0x#1}}\mathdef1962{FD}~~163{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}} \\ &&|& \def\mathdef1963#1{\mathtt{0x#1}}\mathdef1963{FD}~~164{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}} \\ &&|& \def\mathdef1964#1{\mathtt{0x#1}}\mathdef1964{FD}~~167{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1965#1{\mathtt{0x#1}}\mathdef1965{FD}~~168{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1966#1{\mathtt{0x#1}}\mathdef1966{FD}~~169{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1967#1{\mathtt{0x#1}}\mathdef1967{FD}~~170{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1968#1{\mathtt{0x#1}}\mathdef1968{FD}~~171{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}} \\ &&|& \def\mathdef1969#1{\mathtt{0x#1}}\mathdef1969{FD}~~172{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef1970#1{\mathtt{0x#1}}\mathdef1970{FD}~~173{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef1971#1{\mathtt{0x#1}}\mathdef1971{FD}~~174{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}} \\ &&|& \def\mathdef1972#1{\mathtt{0x#1}}\mathdef1972{FD}~~177{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}} \\ &&|& \def\mathdef1973#1{\mathtt{0x#1}}\mathdef1973{FD}~~181{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}} \\ &&|& \def\mathdef1974#1{\mathtt{0x#1}}\mathdef1974{FD}~~182{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_s} \\ &&|& \def\mathdef1975#1{\mathtt{0x#1}}\mathdef1975{FD}~~183{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}}\mathsf{\_u} \\ &&|& \def\mathdef1976#1{\mathtt{0x#1}}\mathdef1976{FD}~~184{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_s} \\ &&|& \def\mathdef1977#1{\mathtt{0x#1}}\mathdef1977{FD}~~185{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}}\mathsf{\_u} \\ &&|& \def\mathdef1978#1{\mathtt{0x#1}}\mathdef1978{FD}~~186{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{dot}}\mathsf{\_i16x8\_s}\\ &&|& \def\mathdef1979#1{\mathtt{0x#1}}\mathdef1979{FD}~~188{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1980#1{\mathtt{0x#1}}\mathdef1980{FD}~~189{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1981#1{\mathtt{0x#1}}\mathdef1981{FD}~~190{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1982#1{\mathtt{0x#1}}\mathdef1982{FD}~~191{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef1983#1{\mathtt{0x#1}}\mathdef1983{FD}~~192{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}} \\ &&|& \def\mathdef1984#1{\mathtt{0x#1}}\mathdef1984{FD}~~193{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}} \\ &&|& \def\mathdef1985#1{\mathtt{0x#1}}\mathdef1985{FD}~~195{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{all\_true}} \\ &&|& \def\mathdef1986#1{\mathtt{0x#1}}\mathdef1986{FD}~~196{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{bitmask}} \\ &&|& \def\mathdef1987#1{\mathtt{0x#1}}\mathdef1987{FD}~~199{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1988#1{\mathtt{0x#1}}\mathdef1988{FD}~~200{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1989#1{\mathtt{0x#1}}\mathdef1989{FD}~~201{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1990#1{\mathtt{0x#1}}\mathdef1990{FD}~~202{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1991#1{\mathtt{0x#1}}\mathdef1991{FD}~~203{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shl}} \\ &&|& \def\mathdef1992#1{\mathtt{0x#1}}\mathdef1992{FD}~~204{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_s} \\ &&|& \def\mathdef1993#1{\mathtt{0x#1}}\mathdef1993{FD}~~205{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{shr}}\mathsf{\_u} \\ &&|& \def\mathdef1994#1{\mathtt{0x#1}}\mathdef1994{FD}~~206{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}} \\ &&|& \def\mathdef1995#1{\mathtt{0x#1}}\mathdef1995{FD}~~209{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}} \\ &&|& \def\mathdef1996#1{\mathtt{0x#1}}\mathdef1996{FD}~~213{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{i64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}} \\ &&|& \def\mathdef1997#1{\mathtt{0x#1}}\mathdef1997{FD}~~220{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1998#1{\mathtt{0x#1}}\mathdef1998{FD}~~221{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1999#1{\mathtt{0x#1}}\mathdef1999{FD}~~222{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef2000#1{\mathtt{0x#1}}\mathdef2000{FD}~~223{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef2001#1{\mathtt{0x#1}}\mathdef2001{FD}~~103{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ceil}} \\ &&|& \def\mathdef2002#1{\mathtt{0x#1}}\mathdef2002{FD}~~104{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{floor}} \\ &&|& \def\mathdef2003#1{\mathtt{0x#1}}\mathdef2003{FD}~~105{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc}} \\ &&|& \def\mathdef2004#1{\mathtt{0x#1}}\mathdef2004{FD}~~106{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{nearest}} \\ &&|& \def\mathdef2005#1{\mathtt{0x#1}}\mathdef2005{FD}~~224{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}} \\ &&|& \def\mathdef2006#1{\mathtt{0x#1}}\mathdef2006{FD}~~225{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}} \\ &&|& \def\mathdef2007#1{\mathtt{0x#1}}\mathdef2007{FD}~~227{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sqrt}} \\ &&|& \def\mathdef2008#1{\mathtt{0x#1}}\mathdef2008{FD}~~228{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}} \\ &&|& \def\mathdef2009#1{\mathtt{0x#1}}\mathdef2009{FD}~~229{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}} \\ &&|& \def\mathdef2010#1{\mathtt{0x#1}}\mathdef2010{FD}~~230{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}} \\ &&|& \def\mathdef2011#1{\mathtt{0x#1}}\mathdef2011{FD}~~231{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{div}} \\ &&|& \def\mathdef2012#1{\mathtt{0x#1}}\mathdef2012{FD}~~232{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}} \\ &&|& \def\mathdef2013#1{\mathtt{0x#1}}\mathdef2013{FD}~~233{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}} \\ &&|& \def\mathdef2014#1{\mathtt{0x#1}}\mathdef2014{FD}~~234{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{pmin}} \\ &&|& \def\mathdef2015#1{\mathtt{0x#1}}\mathdef2015{FD}~~235{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{pmax}} \\ \end{array}\end{split}\]

\[\begin{split}\begin{array}{llclll} \phantom{\def\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef2016#1{\mathtt{0x#1}}\mathdef2016{FD}~~116{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{ceil}} \\ &&|& \def\mathdef2017#1{\mathtt{0x#1}}\mathdef2017{FD}~~117{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{floor}} \\ &&|& \def\mathdef2018#1{\mathtt{0x#1}}\mathdef2018{FD}~~122{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{trunc}} \\ &&|& \def\mathdef2019#1{\mathtt{0x#1}}\mathdef2019{FD}~~148{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{nearest}} \\ &&|& \def\mathdef2020#1{\mathtt{0x#1}}\mathdef2020{FD}~~236{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{abs}} \\ &&|& \def\mathdef2021#1{\mathtt{0x#1}}\mathdef2021{FD}~~237{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{neg}} \\ &&|& \def\mathdef2022#1{\mathtt{0x#1}}\mathdef2022{FD}~~239{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sqrt}} \\ &&|& \def\mathdef2023#1{\mathtt{0x#1}}\mathdef2023{FD}~~240{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{add}} \\ &&|& \def\mathdef2024#1{\mathtt{0x#1}}\mathdef2024{FD}~~241{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{sub}} \\ &&|& \def\mathdef2025#1{\mathtt{0x#1}}\mathdef2025{FD}~~242{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{mul}} \\ &&|& \def\mathdef2026#1{\mathtt{0x#1}}\mathdef2026{FD}~~243{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{div}} \\ &&|& \def\mathdef2027#1{\mathtt{0x#1}}\mathdef2027{FD}~~244{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{min}} \\ &&|& \def\mathdef2028#1{\mathtt{0x#1}}\mathdef2028{FD}~~245{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{max}} \\ &&|& \def\mathdef2029#1{\mathtt{0x#1}}\mathdef2029{FD}~~246{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f64x2}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{pmin}} \\ &&|& \def\mathdef2030#1{\mathtt{0x#1}}\mathdef2030{FD}~~247{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef1512#1{{}}\mathdef1512{instruction}} & \phantom{\href{../binary/instructions.html#binary-instr}{\mathtt{instr}}} &\phantom{::=}& \phantom{\dots} && \phantom{vechaslongerinstructionnames} \\[-2ex] &&|& \def\mathdef2031#1{\mathtt{0x#1}}\mathdef2031{FD}~~248{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef2032#1{\mathtt{0x#1}}\mathdef2032{FD}~~249{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef2033#1{\mathtt{0x#1}}\mathdef2033{FD}~~250{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_i32x4\_s} \\ &&|& \def\mathdef2034#1{\mathtt{0x#1}}\mathdef2034{FD}~~251{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-numeric}{\mathsf{convert}}\mathsf{\_i32x4\_u} \\ &&|& \def\mathdef2035#1{\mathtt{0x#1}}\mathdef2035{FD}~~252{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef2036#1{\mathtt{0x#1}}\mathdef2036{FD}~~253{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef2037#1{\mathtt{0x#1}}\mathdef2037{FD}~~254{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef2038#1{\mathtt{0x#1}}\mathdef2038{FD}~~255{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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\mathdef2039#1{\mathtt{0x#1}}\mathdef2039{FD}~~94{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\mathtt{32}}} &\Rightarrow& \href{../syntax/types.html#syntax-valtype}{\mathsf{f32x4}}.\href{../syntax/instructions.html#syntax-instr-vec}{\mathsf{demote}}\mathsf{\_f64x2\_zero}\\ &&|& \def\mathdef2040#1{\mathtt{0x#1}}\mathdef2040{FD}~~95{:}\href{../binary/values.html#binary-int}{\def\mathdef1517#1{{\mathtt{u}#1}}\mathdef1517{\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}\]

Expressions

Expressions are encoded by their instruction sequence terminated with an explicit \(\def\mathdef2041#1{\mathtt{0x#1}}\mathdef2041{0B}\) opcode for \(\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}}\).

\[\begin{split}\begin{array}{llclll} \def\mathdef1512#1{{}}\mathdef1512{expression} & \href{../binary/instructions.html#binary-expr}{\mathtt{expr}} &::=& (\mathit{in}{:}\href{../binary/instructions.html#binary-instr}{\mathtt{instr}})^\ast~~\def\mathdef2042#1{\mathtt{0x#1}}\mathdef2042{0B} &\Rightarrow& \mathit{in}^\ast~\href{../syntax/instructions.html#syntax-instr-control}{\mathsf{end}} \\ \end{array}\end{split}\]