s_cbranch_scc1 GPU Native ISA AMD Scalar

S CBRANCH SCC1 Branch & Control

s_cbranch_scc1 offset

Conditional relative branch, taken when the SCC (scalar condition code) flag is set.

Encoding

Verified bit-level encoding data is not yet available for this instruction. The instruction-format classification below (SOPP) is well-documented and stable; exact per-target opcode/field bit positions have not yet been imported from a verified source.
Format SOPP
Width 32 bits
Execution Unit Scalar ALU

Operands

  • offset
    Signed word-granularity branch offset

GFX Target Compatibility

TargetSupport
gfx942✅ Supported
gfx1100✅ Supported

Related PTX Concepts

Branch ↗
equivalent with restrictions
bra (PTX)

Related

More in Branch & Control

Reference

AMDGPU / GFX ISA

Description

If SCC is 1 then jump to a constant offset relative to the current PC.

Semantics

if (SCC == 1) PC = PC + 4 + signed_offset * 4.

Example

s_cbranch_scc1  label   // jump to label if SCC == 1

Original illustrative example, written for this site (not reproduced from a specific AMD document).

Sources