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shader: Partial implementation of LDC

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This commit is contained in:
ReinUsesLisp
2021-03-09 17:14:57 -03:00
committed by ameerj
parent ab46371247
commit 3a63fa0477
16 changed files with 405 additions and 50 deletions
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16
src/shader_recompiler/frontend/maxwell/translate/impl/impl.cpp
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@ -56,25 +56,32 @@ IR::F32 TranslatorVisitor::GetFloatReg39(u64 insn) {
return ir.BitCast<IR::F32>(GetReg39(insn));
}
IR::U32 TranslatorVisitor::GetCbuf(u64 insn) {
static std::pair<IR::U32, IR::U32> CbufAddr(u64 insn) {
union {
u64 raw;
BitField<20, 14, s64> offset;
BitField<34, 5, u64> binding;
} const cbuf{insn};
if (cbuf.binding >= 18) {
throw NotImplementedException("Out of bounds constant buffer binding {}", cbuf.binding);
}
if (cbuf.offset >= 0x10'000 || cbuf.offset < 0) {
throw NotImplementedException("Out of bounds constant buffer offset {}", cbuf.offset);
}
const IR::U32 binding{ir.Imm32(static_cast<u32>(cbuf.binding))};
const IR::U32 byte_offset{ir.Imm32(static_cast<u32>(cbuf.offset) * 4)};
const IR::Value binding{static_cast<u32>(cbuf.binding)};
const IR::Value byte_offset{static_cast<u32>(cbuf.offset) * 4};
return {IR::U32{binding}, IR::U32{byte_offset}};
}
IR::U32 TranslatorVisitor::GetCbuf(u64 insn) {
const auto[binding, byte_offset]{CbufAddr(insn)};
return ir.GetCbuf(binding, byte_offset);
}
IR::F32 TranslatorVisitor::GetFloatCbuf(u64 insn) {
return ir.BitCast<IR::F32>(GetCbuf(insn));
const auto[binding, byte_offset]{CbufAddr(insn)};
return ir.GetFloatCbuf(binding, byte_offset);
}
IR::U32 TranslatorVisitor::GetImm20(u64 insn) {
@ -83,6 +90,7 @@ IR::U32 TranslatorVisitor::GetImm20(u64 insn) {
BitField<20, 19, u64> value;
BitField<56, 1, u64> is_negative;
} const imm{insn};
if (imm.is_negative != 0) {
const s64 raw{static_cast<s64>(imm.value)};
return ir.Imm32(static_cast<s32>(-(1LL << 19) + raw));