Absolute
The abs instructions, short for absolute, are used to get the absolute value of a number. That is, it returns x if x is positive, and the negation of x if x is negative.
Try it
Syntax
wasm
;; load a number onto the stack
f32.const -2
;; absolute
f32.abs
;; the top item on the stack will now be 2
| Instruction | Binary opcode |
|---|---|
f32.abs |
0x8b |
f64.abs |
0x99 |