v_exp_f32 GPU Native ISA AMD Vector

V EXP F32 Vector Arithmetic

v_exp_f32

Calculate 2 raised to the power of the single-precision float input 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

1ULP accuracy, denormals are flushed.

Related PTX Concepts

2^x (Base-2 Exponential) ↗
equivalent with restrictions
ex2 (PTX)

Related

More in Vector Arithmetic

Reference

AMDGPU / GFX ISA

Semantics

D0.f32 = pow(2.0F, S0.f32)

Example

V_EXP_F32(0xff800000) => 0x00000000     // exp(-INF) = 0
V_EXP_F32(0x80000000) => 0x3f800000     // exp(-0.0) = 1
V_EXP_F32(0x7f800000) => 0x7f800000     // exp(+INF) = +INF

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

Sources