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| author | ReinUsesLisp <reinuseslisp@airmail.cc> | 2020-04-26 03:53:54 +0200 |
|---|---|---|
| committer | ReinUsesLisp <reinuseslisp@airmail.cc> | 2020-04-26 03:58:33 +0200 |
| commit | e895a4e2d7ebf29fbafda7d950301cd7d03efdbb (patch) | |
| tree | 57dc090aaf66908e213b10cd64fc184b286b4c8a /src/video_core | |
| parent | shader/arithmetic_integer: Change IAdd to UAdd to avoid signed overflow (diff) | |
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Diffstat (limited to 'src/video_core')
| -rw-r--r-- | src/video_core/shader/decode/arithmetic_integer.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/video_core/shader/decode/arithmetic_integer.cpp b/src/video_core/shader/decode/arithmetic_integer.cpp index addd7f533..ced5c3dc1 100644 --- a/src/video_core/shader/decode/arithmetic_integer.cpp +++ b/src/video_core/shader/decode/arithmetic_integer.cpp @@ -35,7 +35,8 @@ u32 ShaderIR::DecodeArithmeticInteger(NodeBlock& bb, u32 pc) { case OpCode::Id::IADD_C: case OpCode::Id::IADD_R: case OpCode::Id::IADD_IMM: { - UNIMPLEMENTED_IF_MSG(instr.alu.saturate_d, "IADD saturation not implemented"); + UNIMPLEMENTED_IF_MSG(instr.alu.saturate_d, "IADD.SAT"); + UNIMPLEMENTED_IF_MSG(instr.iadd.x && instr.generates_cc, "IADD.X Rd.CC"); op_a = GetOperandAbsNegInteger(op_a, false, instr.alu_integer.negate_a, true); op_b = GetOperandAbsNegInteger(op_b, false, instr.alu_integer.negate_b, true); @@ -49,6 +50,10 @@ u32 ShaderIR::DecodeArithmeticInteger(NodeBlock& bb, u32 pc) { } if (instr.generates_cc) { + // Avoid changing result's carry flag + SetTemporary(bb, 0, std::move(value)); + value = GetTemporary(0); + const Node i0 = Immediate(0); Node zero = Operation(OperationCode::LogicalIEqual, value, i0); |