index.md

---

title: OR
slug: WebAssembly/Reference/Numeric/OR

---

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The or instructions, are used for performing a bitwise OR, similar to the | operator in other languages.

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Syntax

;; load two numbers onto the stack
i32.const 5   ;; 00000101
i32.const 3   ;; 00000011

;; perform a bitwise OR
i32.or

;; the top item on the stack will now be 7 (00000111)

Instruction	Binary opcode
i32.or	0x72
i64.or	0x84