image_atomic_fcmpswap GPU Native ISA AMD Vector

IMAGE ATOMIC FCMPSWAP Image / Texture Memory

image_atomic_fcmpswap

Compare two single-precision float values stored in the data comparison register and a location in an image surface.

Encoding

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

Operands

Operand details have not yet been curated for this instruction.

GFX Target Compatibility

Per-target GFX compatibility has not yet been verified for this instruction.

Related

More in Image / Texture Memory

Reference

AMDGPU / GFX ISA

Description

Compare two single-precision float values stored in the data comparison register and a location in an image surface. Modify the memory location with a value in the data source register iff the comparison is equal. Store the original value from image surface into a vector register iff the GLC bit is set.

Sources