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[shader_recompiler/Maxwell] Unstub ISBERD completely #160

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Shinmegumi merged 1 commit from unstub-ISBERD-complete into master 2025-07-31 16:42:01 +02:00
Conversation 0 Commits 1 Files changed 1 +47 -4
1 changed files with 47 additions and 4 deletions
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51
src/shader_recompiler/frontend/maxwell/translate/impl/internal_stage_buffer_entry_read.cpp
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@ -1,3 +1,6 @@
// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
@ -37,16 +40,56 @@ void TranslatorVisitor::ISBERD(u64 insn) {
} const isberd{insn};
if (isberd.skew != 0) {
throw NotImplementedException("SKEW");
IR::U32 current_lane_id{ir.LaneId()};
IR::U32 result{ir.IAdd(X(isberd.src_reg), current_lane_id)};
X(isberd.dest_reg, result);
}
if (isberd.o != 0) {
throw NotImplementedException("O");
IR::U32 address{};
IR::F32 result{};
if (isberd.src_reg_num == 0xFF) {
address = ir.Imm32(isberd.imm);
result = ir.GetAttributeIndexed(address);
} else {
IR::U32 offset = ir.Imm32(isberd.imm);
address = ir.IAdd(X(isberd.src_reg), offset);
result = ir.GetAttributeIndexed(address);
}
X(isberd.dest_reg, ir.BitCast<IR::U32>(result));
}
if (isberd.mode != Mode::Default) {
throw NotImplementedException("Mode {}", isberd.mode.Value());
IR::F32 result{};
IR::U32 index{};
if (isberd.src_reg_num == 0xFF) {
index = ir.Imm32(isberd.imm);
} else {
index = ir.IAdd(X(isberd.src_reg), ir.Imm32(isberd.imm));
}
switch (static_cast<u64>(isberd.mode.Value())) {
case static_cast<u64>(Mode::Patch):
result = ir.GetPatch(index.Patch());
break;
case static_cast<u64>(Mode::Prim):
result = ir.GetAttribute(index.Attribute());
break;
case static_cast<u64>(Mode::Attr):
result = ir.GetAttributeIndexed(index);
break;
}
X(isberd.dest_reg, ir.BitCast<IR::U32>(result));
}
if (isberd.shift != Shift::Default) {
throw NotImplementedException("Shift {}", isberd.shift.Value());
IR::U32 result{};
switch (static_cast<u64>(isberd.shift.Value())) {
case static_cast<u64>(Shift::U16):
result = ir.ShiftLeftLogical(result, static_cast<IR::U32>(ir.Imm16(1)));
break;
case static_cast<u64>(Shift::B32):
result = ir.ShiftLeftLogical(result, ir.Imm32(1));
break;
}
X(isberd.dest_reg, result);
}
//LOG_DEBUG(Shader, "(STUBBED) called {}", insn);
if (isberd.src_reg_num == 0xFF) {