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-rw-r--r--src/video_core/engines/shader_bytecode.h8
-rw-r--r--src/video_core/shader/decode/half_set.cpp88
2 files changed, 75 insertions, 21 deletions
diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h
index e7cb87589..d374b73cf 100644
--- a/src/video_core/engines/shader_bytecode.h
+++ b/src/video_core/engines/shader_bytecode.h
@@ -661,6 +661,10 @@ union Instruction {
constexpr Instruction(u64 value) : value{value} {}
constexpr Instruction(const Instruction& instr) : value(instr.value) {}
+ constexpr bool Bit(u64 offset) const {
+ return ((value >> offset) & 1) != 0;
+ }
+
BitField<0, 8, Register> gpr0;
BitField<8, 8, Register> gpr8;
union {
@@ -1874,7 +1878,9 @@ public:
HSETP2_C,
HSETP2_R,
HSETP2_IMM,
+ HSET2_C,
HSET2_R,
+ HSET2_IMM,
POPC_C,
POPC_R,
POPC_IMM,
@@ -2194,7 +2200,9 @@ private:
INST("0111111-1-------", Id::HSETP2_C, Type::HalfSetPredicate, "HSETP2_C"),
INST("0101110100100---", Id::HSETP2_R, Type::HalfSetPredicate, "HSETP2_R"),
INST("0111111-0-------", Id::HSETP2_IMM, Type::HalfSetPredicate, "HSETP2_IMM"),
+ INST("0111110-1-------", Id::HSET2_C, Type::HalfSet, "HSET2_C"),
INST("0101110100011---", Id::HSET2_R, Type::HalfSet, "HSET2_R"),
+ INST("0111110-0-------", Id::HSET2_IMM, Type::HalfSet, "HSET2_IMM"),
INST("010110111010----", Id::FCMP_RR, Type::Arithmetic, "FCMP_RR"),
INST("010010111010----", Id::FCMP_RC, Type::Arithmetic, "FCMP_RC"),
INST("0101000010000---", Id::MUFU, Type::Arithmetic, "MUFU"),
diff --git a/src/video_core/shader/decode/half_set.cpp b/src/video_core/shader/decode/half_set.cpp
index 848e46874..b2e88fa20 100644
--- a/src/video_core/shader/decode/half_set.cpp
+++ b/src/video_core/shader/decode/half_set.cpp
@@ -13,55 +13,101 @@
namespace VideoCommon::Shader {
+using std::move;
using Tegra::Shader::Instruction;
using Tegra::Shader::OpCode;
+using Tegra::Shader::PredCondition;
u32 ShaderIR::DecodeHalfSet(NodeBlock& bb, u32 pc) {
const Instruction instr = {program_code[pc]};
const auto opcode = OpCode::Decode(instr);
- if (instr.hset2.ftz == 0) {
- LOG_DEBUG(HW_GPU, "{} without FTZ is not implemented", opcode->get().GetName());
+ PredCondition cond;
+ bool bf;
+ bool ftz;
+ bool neg_a;
+ bool abs_a;
+ bool neg_b;
+ bool abs_b;
+ switch (opcode->get().GetId()) {
+ case OpCode::Id::HSET2_C:
+ case OpCode::Id::HSET2_IMM:
+ cond = instr.hsetp2.cbuf_and_imm.cond;
+ bf = instr.Bit(53);
+ ftz = instr.Bit(54);
+ neg_a = instr.Bit(43);
+ abs_a = instr.Bit(44);
+ neg_b = instr.Bit(56);
+ abs_b = instr.Bit(54);
+ break;
+ case OpCode::Id::HSET2_R:
+ cond = instr.hsetp2.reg.cond;
+ bf = instr.Bit(49);
+ ftz = instr.Bit(50);
+ neg_a = instr.Bit(43);
+ abs_a = instr.Bit(44);
+ neg_b = instr.Bit(31);
+ abs_b = instr.Bit(30);
+ break;
+ default:
+ UNREACHABLE();
}
- Node op_a = UnpackHalfFloat(GetRegister(instr.gpr8), instr.hset2.type_a);
- op_a = GetOperandAbsNegHalf(op_a, instr.hset2.abs_a, instr.hset2.negate_a);
-
- Node op_b = [&]() {
+ Node op_b = [this, instr, opcode] {
switch (opcode->get().GetId()) {
+ case OpCode::Id::HSET2_C:
+ // Inform as unimplemented as this is not tested.
+ UNIMPLEMENTED_MSG("HSET2_C is not implemented");
+ return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.GetOffset());
case OpCode::Id::HSET2_R:
return GetRegister(instr.gpr20);
+ case OpCode::Id::HSET2_IMM:
+ return UnpackHalfImmediate(instr, true);
default:
UNREACHABLE();
- return Immediate(0);
+ return Node{};
}
}();
- op_b = UnpackHalfFloat(op_b, instr.hset2.type_b);
- op_b = GetOperandAbsNegHalf(op_b, instr.hset2.abs_b, instr.hset2.negate_b);
- const Node second_pred = GetPredicate(instr.hset2.pred39, instr.hset2.neg_pred);
+ if (!ftz) {
+ LOG_DEBUG(HW_GPU, "{} without FTZ is not implemented", opcode->get().GetName());
+ }
+
+ Node op_a = UnpackHalfFloat(GetRegister(instr.gpr8), instr.hset2.type_a);
+ op_a = GetOperandAbsNegHalf(op_a, abs_a, neg_a);
+
+ switch (opcode->get().GetId()) {
+ case OpCode::Id::HSET2_R:
+ op_b = GetOperandAbsNegHalf(move(op_b), abs_b, neg_b);
+ [[fallthrough]];
+ case OpCode::Id::HSET2_C:
+ op_b = UnpackHalfFloat(move(op_b), instr.hset2.type_b);
+ break;
+ default:
+ break;
+ }
- const Node comparison_pair = GetPredicateComparisonHalf(instr.hset2.cond, op_a, op_b);
+ Node second_pred = GetPredicate(instr.hset2.pred39, instr.hset2.neg_pred);
+
+ Node comparison_pair = GetPredicateComparisonHalf(cond, op_a, op_b);
const OperationCode combiner = GetPredicateCombiner(instr.hset2.op);
// HSET2 operates on each half float in the pack.
std::array<Node, 2> values;
for (u32 i = 0; i < 2; ++i) {
- const u32 raw_value = instr.hset2.bf ? 0x3c00 : 0xffff;
- const Node true_value = Immediate(raw_value << (i * 16));
- const Node false_value = Immediate(0);
-
- const Node comparison =
- Operation(OperationCode::LogicalPick2, comparison_pair, Immediate(i));
- const Node predicate = Operation(combiner, comparison, second_pred);
+ const u32 raw_value = bf ? 0x3c00 : 0xffff;
+ Node true_value = Immediate(raw_value << (i * 16));
+ Node false_value = Immediate(0);
+ Node comparison = Operation(OperationCode::LogicalPick2, comparison_pair, Immediate(i));
+ Node predicate = Operation(combiner, comparison, second_pred);
values[i] =
- Operation(OperationCode::Select, NO_PRECISE, predicate, true_value, false_value);
+ Operation(OperationCode::Select, predicate, move(true_value), move(false_value));
}
- const Node value = Operation(OperationCode::UBitwiseOr, NO_PRECISE, values[0], values[1]);
- SetRegister(bb, instr.gpr0, value);
+ Node value = Operation(OperationCode::UBitwiseOr, values[0], values[1]);
+ SetRegister(bb, instr.gpr0, move(value));
return pc;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 14:14:34 +0100