diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/shader_recompiler/frontend/maxwell/translate/impl/integer_scaled_add.cpp | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/integer_scaled_add.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/integer_scaled_add.cpp index 7aef37f54..93cc2c0b1 100644 --- a/src/shader_recompiler/frontend/maxwell/translate/impl/integer_scaled_add.cpp +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/integer_scaled_add.cpp @@ -30,23 +30,24 @@ void ISCADD(TranslatorVisitor& v, u64 insn, IR::U32 op_b) { if (iscadd.neg_b != 0) { op_b = v.ir.INeg(op_b); } + } else { + // When PO is present, add one + op_b = v.ir.IAdd(op_b, v.ir.Imm32(1)); } // With the operands already processed, scale A const IR::U32 scale{v.ir.Imm32(static_cast<u32>(iscadd.scale))}; const IR::U32 scaled_a{v.ir.ShiftLeftLogical(op_a, scale)}; - IR::U32 result{v.ir.IAdd(scaled_a, op_b)}; - if (po) { - // .PO adds one to the final result - result = v.ir.IAdd(result, v.ir.Imm32(1)); - } + const IR::U32 result{v.ir.IAdd(scaled_a, op_b)}; v.X(iscadd.dest_reg, result); if (iscadd.cc != 0) { v.SetZFlag(v.ir.GetZeroFromOp(result)); v.SetSFlag(v.ir.GetSignFromOp(result)); - v.SetCFlag(v.ir.GetCarryFromOp(result)); - v.SetOFlag(v.ir.GetOverflowFromOp(result)); + const IR::U1 carry{v.ir.GetCarryFromOp(result)}; + const IR::U1 overflow{v.ir.GetOverflowFromOp(result)}; + v.SetCFlag(po ? v.ir.LogicalOr(carry, v.ir.GetCarryFromOp(op_b)) : carry); + v.SetOFlag(po ? v.ir.LogicalOr(overflow, v.ir.GetOverflowFromOp(op_b)) : overflow); } } |