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authorReinUsesLisp <reinuseslisp@airmail.cc>2020-01-25 06:18:14 +0100
committerReinUsesLisp <reinuseslisp@airmail.cc>2020-01-25 07:16:10 +0100
commit531f25a03789dbdd3242edbe00d07dabc85847eb (patch)
treecd11d0ca1d984375b572d1928a0dbfcf955e2560 /src
parentshader/memory: Implement LDL.S16 and LDS.S16 (diff)
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Diffstat (limited to 'src')
-rw-r--r--src/video_core/shader/decode/memory.cpp45
1 files changed, 27 insertions, 18 deletions
diff --git a/src/video_core/shader/decode/memory.cpp b/src/video_core/shader/decode/memory.cpp
index 3f3ef6e7c..2f5ca5de5 100644
--- a/src/video_core/shader/decode/memory.cpp
+++ b/src/video_core/shader/decode/memory.cpp
@@ -62,6 +62,20 @@ u32 GetMemorySize(Tegra::Shader::UniformType uniform_type) {
}
}
+Node ExtractUnaligned(Node value, Node address, u32 mask, u32 size) {
+ Node offset = Operation(OperationCode::UBitwiseAnd, address, Immediate(mask));
+ offset = Operation(OperationCode::ULogicalShiftLeft, std::move(offset), Immediate(3));
+ return Operation(OperationCode::UBitfieldExtract, std::move(value), std::move(offset),
+ Immediate(size));
+}
+
+Node InsertUnaligned(Node dest, Node value, Node address, u32 mask, u32 size) {
+ Node offset = Operation(OperationCode::UBitwiseAnd, std::move(address), Immediate(mask));
+ offset = Operation(OperationCode::ULogicalShiftLeft, std::move(offset), Immediate(3));
+ return Operation(OperationCode::UBitfieldInsert, std::move(dest), std::move(value),
+ std::move(offset), Immediate(size));
+}
+
Node Sign16Extend(Node value) {
Node sign = Operation(OperationCode::UBitwiseAnd, value, Immediate(1U << 15));
Node is_sign = Operation(OperationCode::LogicalUEqual, std::move(sign), Immediate(1U << 15));
@@ -144,19 +158,23 @@ u32 ShaderIR::DecodeMemory(NodeBlock& bb, u32 pc) {
LOG_DEBUG(HW_GPU, "LD_L cache management mode: {}", static_cast<u64>(instr.ld_l.unknown));
[[fallthrough]];
case OpCode::Id::LD_S: {
- const auto GetMemory = [&](s32 offset) {
+ const auto GetAddress = [&](s32 offset) {
ASSERT(offset % 4 == 0);
const Node immediate_offset = Immediate(static_cast<s32>(instr.smem_imm) + offset);
- const Node address =
- Operation(OperationCode::IAdd, GetRegister(instr.gpr8), immediate_offset);
- return opcode->get().GetId() == OpCode::Id::LD_S ? GetSharedMemory(address)
- : GetLocalMemory(address);
+ return Operation(OperationCode::IAdd, GetRegister(instr.gpr8), immediate_offset);
+ };
+ const auto GetMemory = [&](s32 offset) {
+ return opcode->get().GetId() == OpCode::Id::LD_S ? GetSharedMemory(GetAddress(offset))
+ : GetLocalMemory(GetAddress(offset));
};
switch (instr.ldst_sl.type.Value()) {
- case StoreType::Signed16:
+ case StoreType::Signed16: {
+ Node address = GetAddress(0);
+
SetRegister(bb, instr.gpr0, Sign16Extend(GetMemory(0)));
break;
+ }
case StoreType::Bits32:
case StoreType::Bits64:
case StoreType::Bits128: {
@@ -223,12 +241,7 @@ u32 ShaderIR::DecodeMemory(NodeBlock& bb, u32 pc) {
// To handle unaligned loads get the bytes used to dereference global memory and extract
// those bytes from the loaded u32.
if (IsUnaligned(type)) {
- Node mask = Immediate(GetUnalignedMask(type));
- Node offset = Operation(OperationCode::UBitwiseAnd, real_address, std::move(mask));
- offset = Operation(OperationCode::ULogicalShiftLeft, offset, Immediate(3));
-
- gmem = Operation(OperationCode::UBitfieldExtract, std::move(gmem),
- std::move(offset), Immediate(size));
+ gmem = ExtractUnaligned(gmem, real_address, GetUnalignedMask(type), size);
}
SetTemporary(bb, i, gmem);
@@ -334,12 +347,8 @@ u32 ShaderIR::DecodeMemory(NodeBlock& bb, u32 pc) {
Node value = GetRegister(instr.gpr0.Value() + i);
if (IsUnaligned(type)) {
- Node mask = Immediate(GetUnalignedMask(type));
- Node offset = Operation(OperationCode::UBitwiseAnd, real_address, std::move(mask));
- offset = Operation(OperationCode::ULogicalShiftLeft, offset, Immediate(3));
-
- value = Operation(OperationCode::UBitfieldInsert, gmem, std::move(value), offset,
- Immediate(size));
+ const u32 mask = GetUnalignedMask(type);
+ value = InsertUnaligned(gmem, std::move(value), real_address, mask, size);
}
bb.push_back(Operation(OperationCode::Assign, gmem, value));