Numbers

Wasm has four types of numbers i32, i64, f32, and f64. Each kind has their own operators and can be converted between types.

i32 - 32bit integer i64 - 64bit integer f32 - 32bit float f64 - 64bit float

Define a Const

i32.const 1
i64.const 1
f32.const 1
f64.const 1

Common Arithmetic

	i32	i64	f32	f64
add	i32.add	i64.add	f32.add	f64.add
sub	i32.sub	i64.sub	f32.sub	f64.sub
mul	i32.mul	i64.mul	f32.mul	f64.mul
div	i32.div_s //signed	i64.div_s	f32.div	f64.div
	I32.div_u //unsigned	i64.div_u
modulus	i32.rem_s	i64.rem_s
	i32.rem_u	i64.rem_u
abs			f32.abs	f64.abs
neg			f32.neg	f64.neg
ceiling			f32.ceil	f64.ceil
floor			f32.floor	f64.floor
square root			f32.sqrt	f64.sqrt
min			f32.min	f64.min
max			f64.max	f64.max

Common Logic

	i32	i64	f32	f64
equals one	i32.eqz	i64.eqz
equals	i32.eq	i64.eq	f32.eq	f64.eq
not equal	i32.ne	i64.ne	f32.ne	f64.ne
less than	i32.lt_s //signed	i64.lt_s	f32.lt	f64.lt
	i32.lt_u //unsigned	i64.lt_u
greater than	i32.gt_s	i64.gt_s	f32.gt	f64.gt
	i32.gt_u	i64.gt_u
less then or equal	i32.le_s	i64.le_s	f32.le	f64.le
	i32.le_u	i64.le_u
greater than or equal	i32.ge_s	i64.ge_s	f32.ge	f64.ge
	i32.ge_u	i64.ge_u
and	i32.and	i64.and
or	i32.or	i64.or
xor	i32.xor	i64.xor

Conversions

x to y	i32	i64	f32	f64
i32		i32.wrap_i64	i32.trunc_f32_s	i32.trunc_f64_s
i64	i64.extend_i32_s		i64.trunc_f32_u	i64.trunc_f64_s
f32	f32.convert_i32	f32.convert_i64_s		f32.demote_f64
f64	f64.convert_i32_s	f64.convert_i64_s	f64.promote_f32