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DXIL Debugger Implement DXOp::USubb

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This commit is contained in:
Jake Turner
2024-12-15 12:03:00 +00:00
parent c569e5255e
commit 887b8022b4
2 changed files with 29 additions and 2 deletions
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renderdoc/driver/shaders/dxil/dxil_debug.cpp
+29 -1
View File
@@ -3254,8 +3254,36 @@ bool ThreadState::ExecuteInstruction(DebugAPIWrapper *apiWrapper,
result.value.u32v[1] = sum > 0xffffffff ? 1 : 0;
break;
}
// Likely to implement when required
case DXOp::USubb:
{
// a-b, borrow : USubb(a,b)
RDCASSERTEQUAL(inst.args[1]->type->type, Type::TypeKind::Scalar);
RDCASSERTEQUAL(inst.args[1]->type->scalarType, Type::Int);
RDCASSERTEQUAL(inst.args[2]->type->type, Type::TypeKind::Scalar);
RDCASSERTEQUAL(inst.args[2]->type->scalarType, Type::Int);
ShaderVariable a;
ShaderVariable b;
RDCASSERT(GetShaderVariable(inst.args[1], opCode, dxOpCode, a));
RDCASSERT(GetShaderVariable(inst.args[2], opCode, dxOpCode, b));
RDCASSERTEQUAL(a.type, b.type);
uint64_t src0;
uint64_t src1;
// add on a 'borrow' bit
src0 = 0x100000000 | (uint64_t)a.value.u32v[0];
src1 = (uint64_t)b.value.u32v[0];
// do the subtract
uint64_t sub = src0 - src1;
// a-b : 32-bits
result.value.u32v[0] = (sub & 0xffffffff);
// mark where the borrow bits was used
result.value.u32v[1] = (sub <= 0xffffffff) ? 1U : 0U;
break;
}
// Likely to implement when required
case DXOp::Msad:
case DXOp::Ibfe:
case DXOp::Ubfe:
renderdoc/driver/shaders/dxil/dxil_reflect.cpp
-1
View File
@@ -1816,7 +1816,6 @@ rdcstr Program::GetDebugStatus()
case DXOp::TempRegStore:
case DXOp::MinPrecXRegLoad:
case DXOp::MinPrecXRegStore:
case DXOp::USubb:
case DXOp::Msad:
case DXOp::Ibfe:
case DXOp::Ubfe: