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Merge pull request #396 from Subv/shader_ops
Shaders: Implemented the FSET instruction.
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commit
f81b915fd8
@ -214,6 +214,20 @@ union Instruction {
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BitField<56, 1, u64> neg_b;
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} fsetp;
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union {
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BitField<39, 3, u64> pred39;
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BitField<42, 1, u64> neg_pred;
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BitField<43, 1, u64> neg_a;
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BitField<44, 1, u64> abs_b;
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BitField<45, 2, PredOperation> op;
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BitField<48, 4, PredCondition> cond;
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BitField<53, 1, u64> neg_b;
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BitField<54, 1, u64> abs_a;
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BitField<52, 1, u64> bf;
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BitField<55, 1, u64> ftz;
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BitField<56, 1, u64> neg_imm;
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} fset;
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BitField<61, 1, u64> is_b_imm;
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BitField<60, 1, u64> is_b_gpr;
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BitField<59, 1, u64> is_c_gpr;
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@ -261,6 +275,9 @@ public:
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I2F_C,
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I2F_R,
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I2F_IMM,
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I2I_C,
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I2I_R,
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I2I_IMM,
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LOP32I,
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MOV_C,
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MOV_R,
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@ -272,6 +289,9 @@ public:
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FSETP_C, // Set Predicate
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FSETP_R,
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FSETP_IMM,
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FSET_C,
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FSET_R,
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FSET_IMM,
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ISETP_C,
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ISETP_IMM,
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ISETP_R,
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@ -283,8 +303,9 @@ public:
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Ffma,
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Flow,
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Memory,
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FloatPredicate,
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IntegerPredicate,
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FloatSet,
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FloatSetPredicate,
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IntegerSetPredicate,
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Unknown,
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};
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@ -409,6 +430,9 @@ private:
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INST("0100110010111---", Id::I2F_C, Type::Arithmetic, "I2F_C"),
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INST("0101110010111---", Id::I2F_R, Type::Arithmetic, "I2F_R"),
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INST("0011100-10111---", Id::I2F_IMM, Type::Arithmetic, "I2F_IMM"),
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INST("0100110011100---", Id::I2I_C, Type::Arithmetic, "I2I_C"),
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INST("0101110011100---", Id::I2I_R, Type::Arithmetic, "I2I_R"),
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INST("01110001-1000---", Id::I2I_IMM, Type::Arithmetic, "I2I_IMM"),
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INST("000001----------", Id::LOP32I, Type::Arithmetic, "LOP32I"),
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INST("0100110010011---", Id::MOV_C, Type::Arithmetic, "MOV_C"),
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INST("0101110010011---", Id::MOV_R, Type::Arithmetic, "MOV_R"),
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@ -417,12 +441,15 @@ private:
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INST("0100110000101---", Id::SHR_C, Type::Arithmetic, "SHR_C"),
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INST("0101110000101---", Id::SHR_R, Type::Arithmetic, "SHR_R"),
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INST("0011100-00101---", Id::SHR_IMM, Type::Arithmetic, "SHR_IMM"),
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INST("010010111011----", Id::FSETP_C, Type::FloatPredicate, "FSETP_C"),
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INST("010110111011----", Id::FSETP_R, Type::FloatPredicate, "FSETP_R"),
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INST("0011011-1011----", Id::FSETP_IMM, Type::FloatPredicate, "FSETP_IMM"),
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INST("010010110110----", Id::ISETP_C, Type::IntegerPredicate, "ISETP_C"),
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INST("010110110110----", Id::ISETP_R, Type::IntegerPredicate, "ISETP_R"),
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INST("0011011-0110----", Id::ISETP_IMM, Type::IntegerPredicate, "ISETP_IMM"),
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INST("01011000--------", Id::FSET_R, Type::FloatSet, "FSET_R"),
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INST("0100100---------", Id::FSET_C, Type::FloatSet, "FSET_C"),
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INST("0011000---------", Id::FSET_IMM, Type::FloatSet, "FSET_IMM"),
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INST("010010111011----", Id::FSETP_C, Type::FloatSetPredicate, "FSETP_C"),
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INST("010110111011----", Id::FSETP_R, Type::FloatSetPredicate, "FSETP_R"),
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INST("0011011-1011----", Id::FSETP_IMM, Type::FloatSetPredicate, "FSETP_IMM"),
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INST("010010110110----", Id::ISETP_C, Type::IntegerSetPredicate, "ISETP_C"),
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INST("010110110110----", Id::ISETP_R, Type::IntegerSetPredicate, "ISETP_R"),
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INST("0011011-0110----", Id::ISETP_IMM, Type::IntegerSetPredicate, "ISETP_IMM"),
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};
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#undef INST
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std::stable_sort(table.begin(), table.end(), [](const auto& a, const auto& b) {
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@ -519,7 +519,7 @@ private:
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}
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break;
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}
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case OpCode::Type::FloatPredicate: {
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case OpCode::Type::FloatSetPredicate: {
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std::string op_a = instr.fsetp.neg_a ? "-" : "";
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op_a += GetRegister(instr.gpr8);
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@ -570,6 +570,59 @@ private:
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}
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break;
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}
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case OpCode::Type::FloatSet: {
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std::string dest = GetRegister(instr.gpr0);
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std::string op_a = instr.fset.neg_a ? "-" : "";
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op_a += GetRegister(instr.gpr8);
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if (instr.fset.abs_a) {
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op_a = "abs(" + op_a + ')';
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}
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std::string op_b = instr.fset.neg_b ? "-" : "";
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if (instr.is_b_imm) {
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std::string imm = GetImmediate19(instr);
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if (instr.fset.neg_imm)
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op_b += "(-" + imm + ')';
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else
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op_b += imm;
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} else {
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if (instr.is_b_gpr) {
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op_b += GetRegister(instr.gpr20);
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} else {
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op_b += GetUniform(instr.uniform);
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}
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}
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if (instr.fset.abs_b) {
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op_b = "abs(" + op_b + ")";
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}
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using Tegra::Shader::Pred;
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ASSERT_MSG(instr.fset.pred39 == static_cast<u64>(Pred::UnusedIndex),
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"Compound predicates are not implemented");
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// The fset instruction sets a register to 1.0 if the condition is true, and to 0
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// otherwise.
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using Tegra::Shader::PredCondition;
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switch (instr.fset.cond) {
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case PredCondition::LessThan:
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SetDest(0, dest, "((" + op_a + ") < (" + op_b + ")) ? 1.0 : 0", 1, 1);
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break;
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case PredCondition::Equal:
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SetDest(0, dest, "((" + op_a + ") == (" + op_b + ")) ? 1.0 : 0", 1, 1);
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break;
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case PredCondition::GreaterThan:
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SetDest(0, dest, "((" + op_a + ") > (" + op_b + ")) ? 1.0 : 0", 1, 1);
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break;
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default:
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NGLOG_CRITICAL(HW_GPU, "Unhandled predicate condition: {} (a: {}, b: {})",
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static_cast<unsigned>(instr.fset.cond.Value()), op_a, op_b);
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UNREACHABLE();
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}
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break;
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}
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default: {
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switch (opcode->GetId()) {
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case OpCode::Id::EXIT: {
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