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Merge pull request #1289 from FernandoS27/lea_pset 

shader_decompiler: Implemented LEA and PSET
nce_cpp
bunnei 7 years ago
committed by GitHub
parent
48fc06336c 324c65fc60
commit
f0e82e9add
2 changed files with 155 additions and 0 deletions
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  1. 64
      src/video_core/engines/shader_bytecode.h
  2. 91
      src/video_core/renderer_opengl/gl_shader_decompiler.cpp

64
src/video_core/engines/shader_bytecode.h
View File

@ -423,6 +423,45 @@ union Instruction {
}
} bfe;
union {
BitField<48, 3, u64> pred48;
union {
BitField<20, 20, u64> entry_a;
BitField<39, 5, u64> entry_b;
BitField<45, 1, u64> neg;
BitField<46, 1, u64> uses_cc;
} imm;
union {
BitField<20, 14, u64> cb_index;
BitField<34, 5, u64> cb_offset;
BitField<56, 1, u64> neg;
BitField<57, 1, u64> uses_cc;
} hi;
union {
BitField<20, 14, u64> cb_index;
BitField<34, 5, u64> cb_offset;
BitField<39, 5, u64> entry_a;
BitField<45, 1, u64> neg;
BitField<46, 1, u64> uses_cc;
} rz;
union {
BitField<39, 5, u64> entry_a;
BitField<45, 1, u64> neg;
BitField<46, 1, u64> uses_cc;
} r1;
union {
BitField<28, 8, u64> entry_a;
BitField<37, 1, u64> neg;
BitField<38, 1, u64> uses_cc;
} r2;
} lea;
union {
BitField<0, 5, FlowCondition> cond;
} flow;
@ -477,6 +516,18 @@ union Instruction {
BitField<45, 2, PredOperation> op;
} psetp;
union {
BitField<12, 3, u64> pred12;
BitField<15, 1, u64> neg_pred12;
BitField<24, 2, PredOperation> cond;
BitField<29, 3, u64> pred29;
BitField<32, 1, u64> neg_pred29;
BitField<39, 3, u64> pred39;
BitField<42, 1, u64> neg_pred39;
BitField<44, 1, u64> bf;
BitField<45, 2, PredOperation> op;
} pset;
union {
BitField<39, 3, u64> pred39;
BitField<42, 1, u64> neg_pred;
@ -726,6 +777,11 @@ public:
ISCADD_C, // Scale and Add
ISCADD_R,
ISCADD_IMM,
LEA_R1,
LEA_R2,
LEA_RZ,
LEA_IMM,
LEA_HI,
POPC_C,
POPC_R,
POPC_IMM,
@ -784,6 +840,7 @@ public:
ISET_C,
ISET_IMM,
PSETP,
PSET,
XMAD_IMM,
XMAD_CR,
XMAD_RC,
@ -807,6 +864,7 @@ public:
IntegerSet,
IntegerSetPredicate,
PredicateSetPredicate,
PredicateSetRegister,
Conversion,
Xmad,
Unknown,
@ -958,6 +1016,11 @@ private:
INST("0100110010100---", Id::SEL_C, Type::ArithmeticInteger, "SEL_C"),
INST("0101110010100---", Id::SEL_R, Type::ArithmeticInteger, "SEL_R"),
INST("0011100-10100---", Id::SEL_IMM, Type::ArithmeticInteger, "SEL_IMM"),
INST("0101101111011---", Id::LEA_R2, Type::ArithmeticInteger, "LEA_R2"),
INST("0101101111010---", Id::LEA_R1, Type::ArithmeticInteger, "LEA_R1"),
INST("001101101101----", Id::LEA_IMM, Type::ArithmeticInteger, "LEA_IMM"),
INST("010010111101----", Id::LEA_RZ, Type::ArithmeticInteger, "LEA_RZ"),
INST("00011000--------", Id::LEA_HI, Type::ArithmeticInteger, "LEA_HI"),
INST("0101000010000---", Id::MUFU, Type::Arithmetic, "MUFU"),
INST("0100110010010---", Id::RRO_C, Type::Arithmetic, "RRO_C"),
INST("0101110010010---", Id::RRO_R, Type::Arithmetic, "RRO_R"),
@ -1012,6 +1075,7 @@ private:
INST("010110110101----", Id::ISET_R, Type::IntegerSet, "ISET_R"),
INST("010010110101----", Id::ISET_C, Type::IntegerSet, "ISET_C"),
INST("0011011-0101----", Id::ISET_IMM, Type::IntegerSet, "ISET_IMM"),
INST("0101000010001---", Id::PSET, Type::PredicateSetRegister, "PSET"),
INST("0101000010010---", Id::PSETP, Type::PredicateSetPredicate, "PSETP"),
INST("0011011-00------", Id::XMAD_IMM, Type::Xmad, "XMAD_IMM"),
INST("0100111---------", Id::XMAD_CR, Type::Xmad, "XMAD_CR"),

91
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
View File

@ -1505,6 +1505,73 @@ private:
1, 1);
break;
}
case OpCode::Id::LEA_R2:
case OpCode::Id::LEA_R1:
case OpCode::Id::LEA_IMM:
case OpCode::Id::LEA_RZ:
case OpCode::Id::LEA_HI: {
std::string op_a;
std::string op_b;
std::string op_c;
switch (opcode->GetId()) {
case OpCode::Id::LEA_R2: {
op_a = regs.GetRegisterAsInteger(instr.gpr20);
op_b = regs.GetRegisterAsInteger(instr.gpr39);
op_c = std::to_string(instr.lea.r2.entry_a);
break;
}
case OpCode::Id::LEA_R1: {
const bool neg = instr.lea.r1.neg != 0;
op_a = regs.GetRegisterAsInteger(instr.gpr8);
if (neg)
op_a = "-(" + op_a + ')';
op_b = regs.GetRegisterAsInteger(instr.gpr20);
op_c = std::to_string(instr.lea.r1.entry_a);
break;
}
case OpCode::Id::LEA_IMM: {
const bool neg = instr.lea.imm.neg != 0;
op_b = regs.GetRegisterAsInteger(instr.gpr8);
if (neg)
op_b = "-(" + op_b + ')';
op_a = std::to_string(instr.lea.imm.entry_a);
op_c = std::to_string(instr.lea.imm.entry_b);
break;
}
case OpCode::Id::LEA_RZ: {
const bool neg = instr.lea.rz.neg != 0;
op_b = regs.GetRegisterAsInteger(instr.gpr8);
if (neg)
op_b = "-(" + op_b + ')';
op_a = regs.GetUniform(instr.lea.rz.cb_index, instr.lea.rz.cb_offset,
GLSLRegister::Type::Integer);
op_c = std::to_string(instr.lea.rz.entry_a);
break;
}
case OpCode::Id::LEA_HI:
default: {
op_b = regs.GetRegisterAsInteger(instr.gpr8);
op_a = std::to_string(instr.lea.imm.entry_a);
op_c = std::to_string(instr.lea.imm.entry_b);
LOG_CRITICAL(HW_GPU, "Unhandled LEA subinstruction: {}", opcode->GetName());
UNREACHABLE();
}
}
if (instr.lea.pred48 != static_cast<u64>(Pred::UnusedIndex)) {
LOG_ERROR(HW_GPU, "Unhandled LEA Predicate");
UNREACHABLE();
}
const std::string value = '(' + op_a + " + (" + op_b + "*(1 << " + op_c + ")))";
regs.SetRegisterToInteger(instr.gpr0, true, 0, value, 1, 1);
break;
}
default: {
LOG_CRITICAL(HW_GPU, "Unhandled ArithmeticInteger instruction: {}",
opcode->GetName());
@ -2087,6 +2154,30 @@ private:
}
break;
}
case OpCode::Type::PredicateSetRegister: {
const std::string op_a =
GetPredicateCondition(instr.pset.pred12, instr.pset.neg_pred12 != 0);
const std::string op_b =
GetPredicateCondition(instr.pset.pred29, instr.pset.neg_pred29 != 0);
const std::string second_pred =
GetPredicateCondition(instr.pset.pred39, instr.pset.neg_pred39 != 0);
const std::string combiner = GetPredicateCombiner(instr.pset.op);
const std::string predicate =
'(' + op_a + ") " + GetPredicateCombiner(instr.pset.cond) + " (" + op_b + ')';
const std::string result = '(' + predicate + ") " + combiner + " (" + second_pred + ')';
if (instr.pset.bf == 0) {
const std::string value = '(' + result + ") ? 0xFFFFFFFF : 0";
regs.SetRegisterToInteger(instr.gpr0, false, 0, value, 1, 1);
} else {
const std::string value = '(' + result + ") ? 1.0 : 0.0";
regs.SetRegisterToFloat(instr.gpr0, 0, value, 1, 1);
}
break;
}
case OpCode::Type::PredicateSetPredicate: {
const std::string op_a =
GetPredicateCondition(instr.psetp.pred12, instr.psetp.neg_pred12 != 0);

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