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[shader_recompiler/Maxwell] ISBERD add size reads

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This commit is contained in:
SDK Chan 2025-08-04 20:48:22 +00:00
parent 51b170b470
commit 92c6e92558
6 changed files with 492 additions and 436 deletions
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36
src/shader_recompiler/frontend/maxwell/translate/impl/impl.cpp
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@ -268,4 +268,40 @@ void TranslatorVisitor::ResetOFlag() {
SetOFlag(ir.Imm1(false));
}
IR::U32 TranslatorVisitor::apply_ISBERD_shift(IR::U32 result, isberd::Shift shift_value) {
if (shift_value != isberd::Shift::Default) {
return ir.ShiftLeftLogical(result, ir.Imm32(1));
}
return result;
}
IR::U32 TranslatorVisitor::apply_ISBERD_size_read(IR::U32 address, isberd::SZ sz) {
switch (sz) {
case isberd::SZ::U8:
return ir.LoadGlobalU8(ir.UConvert(64, address));
case isberd::SZ::U16:
return ir.LoadGlobalU16(ir.UConvert(64, address));
case isberd::SZ::U32:
case isberd::SZ::F32:
return ir.LoadGlobal32(ir.UConvert(64, address));
default:
UNREACHABLE();
}
}
IR::U32 TranslatorVisitor::compute_ISBERD_address(IR::Reg src_reg, u32 src_reg_num, u32 imm, u64 skew_value) {
IR::U32 address{};
if (src_reg_num == 0xFF) {
address = ir.Imm32(imm);
} else {
auto offset = ir.Imm32(imm);
address = ir.IAdd(X(src_reg), offset);
if (skew_value != 0) {
address = ir.IAdd(address, ir.LaneId());
}
}
return address;
};
} // namespace Shader::Maxwell