WebAssembly numeric instructions.

Constants

const

Declare a constant numbers.

Comparison

eq

Check if two numbers are equal.

ne

Check if two numbers are not equal.

gt

Check if a number is greater than another number.

lt

Check if a number is less than another number.

ge

Check if a number is greater than or equal to another number.

le

Check if a number is less than or equal to another number.

Arithmetic

add

Add up two numbers.

sub

Subtract one number from another number.

mul

Multiply one number by another number.

div

Divide one number by another number.

rem

Calculate the remainder left over when one integer is divided by another integer.

Conversion

extend

Convert (extend)i32 toi64.

wrap

Convert (wrap)i64 toi32.

promote

Convert (promote)f32 tof64.

demote

Convert (demote)f64 tof32.

convert

Convert integers to floating points.

trunc (to int)

Convert (truncate fractional part) floating points to integers.

reinterpret

Reinterpret the bytes of integers as floating points and vice versa.

Floating point specific instructions

min

Get the lower of two numbers.

max

Get the higher of two numbers.

nearest

Round a number to the nearest integer.

ceil

Round up a number.

floor

Round down a number.

trunc (to float)

Discard the fractional part of a number.

abs

Get the absolute value of a number.

neg

Negate a number.

sqrt

Get the square root of a number.

copysign

Copy just the sign bit from one number to another.

Bitwise

and

Used for performing a bitwise AND.

or

Used for performing a bitwise OR.

xor

Used for performing a bitwise XOR.

shl

Used for performing a bitwise left-shift.

shr

Used for performing a bitwise right-shift.

rotl

Used for performing a bitwise left-rotate.

rotr

Used for performing a bitwise right-rotate.

clz

Count the amount of leading zeros in a numbers binary representation.

ctz

Count the amount of trailing zeros in a numbers binary representation.

popcnt

Count the total amount of 1s in a numbers binary representation.