index.md

---

title: Right rotate
slug: WebAssembly/Reference/Numeric/Right_rotate

---

{{WebAssemblySidebar}}

The rotr instructions, short for rotate-right, are used for performing a bitwise right-rotate.

{{EmbedInteractiveExample("pages/wat/rotr.html", "tabbed-taller")}}

Syntax

;; load two numbers onto the stack
i32.const 7   ;; 00000000_00000000_00000000_00000111
i32.const 1   ;; right rotate one spot

;; perform a bitwise right-rotate
i32.rotr

;; the top item on the stack will now be 2147483651
;; (10000000_00000000_00000000_00000011)

Instruction	Binary opcode
i32.rotr	0x78
i64.rotr	0x8a