rem: Wasm text instruction
Therem instructions, short forremainder, are used to calculate the remainder left over when one integer is divided by another integer, similar to the% operator in other languages. Therem instructions are only available for the integer types and not for the floating point types.
Try it
(module (import "console" "log" (func $log (param i32))) (func $main ;; load `10` and `3` onto the stack i32.const 10 i32.const 3 i32.rem_u ;; calculate the remainder call $log ;; log the result ) (start $main))const url = "{%wasm-url%}";await WebAssembly.instantiateStreaming(fetch(url), { console });Syntax
wat
;; load two numbers onto the stacki32.const 10i32.const 3;; calculate the remainder of dividing one number by the otheri32.rem;; the top item on the stack will now be 1 (10 % 3 = 1)| Instruction | Binary opcode |
|---|---|
i32.rem_s | 0x6f |
i32.rem_u | 0x70 |
i64.rem_s | 0x81 |
i64.rem_u | 0x82 |