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Merge pull request #542 from bunnei/bfe_imm

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gl_shader_decompiler: Implement BFE_IMM instruction.
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bunnei 2018-06-07 01:49:45 -04:00 • committed by GitHub
commit 0639e03055
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2 changed files with 44 additions and 7 deletions
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33
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -888,8 +888,33 @@ private:
}
break;
}
case OpCode::Type::Bfe: {
ASSERT_MSG(!instr.bfe.negate_b, "Unimplemented");
std::string op_a = instr.bfe.negate_a ? "-" : "";
op_a += regs.GetRegisterAsInteger(instr.gpr8);
switch (opcode->GetId()) {
case OpCode::Id::BFE_IMM: {
std::string inner_shift =
'(' + op_a + " << " + std::to_string(instr.bfe.GetLeftShiftValue()) + ')';
std::string outer_shift =
'(' + inner_shift + " >> " +
std::to_string(instr.bfe.GetLeftShiftValue() + instr.bfe.shift_position) + ')';
regs.SetRegisterToInteger(instr.gpr0, true, 0, outer_shift, 1, 1);
break;
}
default: {
NGLOG_CRITICAL(HW_GPU, "Unhandled BFE instruction: {}", opcode->GetName());
UNREACHABLE();
}
}
break;
}
case OpCode::Type::Logic: {
std::string op_a = regs.GetRegisterAsInteger(instr.gpr8, 0, false);
std::string op_a = regs.GetRegisterAsInteger(instr.gpr8, 0, true);
if (instr.alu.lop.invert_a)
op_a = "~(" + op_a + ')';
@ -903,17 +928,17 @@ private:
switch (instr.alu.lop.operation) {
case Tegra::Shader::LogicOperation::And: {
regs.SetRegisterToInteger(instr.gpr0, false, 0,
regs.SetRegisterToInteger(instr.gpr0, true, 0,
'(' + op_a + " & " + std::to_string(imm) + ')', 1, 1);
break;
}
case Tegra::Shader::LogicOperation::Or: {
regs.SetRegisterToInteger(instr.gpr0, false, 0,
regs.SetRegisterToInteger(instr.gpr0, true, 0,
'(' + op_a + " | " + std::to_string(imm) + ')', 1, 1);
break;
}
case Tegra::Shader::LogicOperation::Xor: {
regs.SetRegisterToInteger(instr.gpr0, false, 0,
regs.SetRegisterToInteger(instr.gpr0, true, 0,
'(' + op_a + " ^ " + std::to_string(imm) + ')', 1, 1);
break;
}