v_cos_f32 GPU Native ISA AMD Vector

V COS F32 Vector Arithmetic

v_cos_f32

Calculate the trigonometric cosine of a single-precision float value using IEEE rules and store the result into a vector register.

Encoding

Verified bit-level encoding data is not yet available for this instruction. The instruction-format classification below (VOP1) is well-documented and stable; exact per-target opcode/field bit positions have not yet been imported from a verified source.
Format VOP1
Execution Unit

Operands

Operand details have not yet been curated for this instruction.

GFX Target Compatibility

TargetSupport
gfx1100✅ Supported

Denormals are supported. Full range input is supported.

Related PTX Concepts

Cosine ↗
equivalent with restrictions
cos (PTX)

Related

More in Vector Arithmetic

Reference

AMDGPU / GFX ISA

Description

Calculate the trigonometric cosine of a single-precision float value using IEEE rules and store the result into a vector register. The operand is calculated by scaling the vector input by 2 PI.

Semantics

D0.f32 = cos(S0.f32 * 32'F(PI * 2.0))

Example

V_COS_F32(0xff800000) => 0xffc00000     // cos(-INF) = NAN
V_COS_F32(0xff7fffff) => 0x3f800000     // -MaxFloat, finite
V_COS_F32(0x80000000) => 0x3f800000     // cos(-0.0) = 1
V_COS_F32(0x3e800000) => 0x00000000     // cos(0.25) = 0

Reproduced from AMD's official "AMD Instinct MI300" ISA Reference Guide for technical accuracy.

Sources