Floor

The floor instructions, are used for getting the value of a number rounded down to the next integer.

floor differs from trunc when used on negative numbers, floor will round down in those cases while trunc will round up.

Try it

Syntax

wasm

;; load a number onto the stack
f32.const -2.7

;; round down
f32.floor

;; the top item on the stack will now be -3
Instruction Binary opcode
f32.floor 0x8e
f64.floor 0x9c