or GPU Virtual ISA NVIDIA

Bitwise OR Logic and Shift Instructions

or.type d, a, b;

Bitwise OR of two operands.

Encoding

PTX is a virtual instruction set. It has no single, stable native binary encoding - the compiler lowers this instruction to different native machine code depending on the selected NVIDIA target architecture (compute capability). This page intentionally shows no bit-diagram; see the target/version requirements below for what governs how this instruction compiles.
PTX ISA Version Introduced PTX ISA 1.0
Minimum Target sm_10

Syntax Forms

One mnemonic covers many type / state-space / scope / modifier combinations - each row below is an independently valid form.

Syntax Data Types State Space(s) Modifiers Min. Target Description
or.type d, a, b; b16, b32, b64, pred sm_10 Bitwise OR, including a predicate form.

Operands

  • d
    Destination register
  • a
    First operand
  • b
    Second operand

At a Glance

Data Types b16, b32, b64, pred

Related AMDGPU Concepts

Bitwise OR ↗
equivalent with restrictions
v_or_b32 (AMDGPU)
s_or_b32 (AMDGPU)

Related

More in Logic and Shift Instructions

Reference

NVIDIA PTX ISA

Description

Compute the bit-wise or operation for the bits in a and b.

Semantics

d = a | b (bitwise).

Examples

or.b32  mask mask,0x00010001
or.pred  p,q,r;

Reproduced from NVIDIA's official PTX ISA documentation for technical accuracy.

Sources