Equal
The eq
instructions, short for equal, check if two numbers are equal. If both numbers are equal 1
will be pushed on to the stack, otherwise 0
will be pushed on to the stack.
Similarly, the eqz
instructions check if a number is equal to zero, the eqz
instructions are only available for the integer types and not for the floating point types.
Try it
Syntax
wasm
;; load 2 numbers on to the stack
local.get $num
i32.const 2
;; check if $num is equal to '2'
i32.eq
;; if $num is equal to `2`, `1` will be pushed on to the stack,
;; otherwise `0` will be pushed on to the stack.
Instruction | Binary opcode |
---|---|
i32.eqz |
0x45 |
i32.eq |
0x46 |
i64.eqz |
0x50 |
i64.eq |
0x51 |
f32.eq |
0x5b |
f64.eq |
0x61 |