Left rotate
The rotl
instructions, short for rotate-left, are used for performing a bitwise left-rotate.
Try it
Syntax
wasm
;; load two numbers onto the stack
i32.const 3758096384 ;; 11100000_00000000_00000000_00000000
i32.const 1 ;; left rotate one spot
;; perform a bitwise left-rotate
i32.rotl
;; the top item on the stack will now be 3221225473
;; (11000000_00000000_00000000_00000001)
Instruction | Binary opcode |
---|---|
i32.rotl |
0x77 |
i64.rotl |
0x89 |