Mirrors/yuzu
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Merge pull request #1763 from ReinUsesLisp/bfi

Browse source 
gl_shader_decompiler: Implement BFI_IMM_R
This commit is contained in:
bunnei 2018-11-25 23:04:57 -05:00 • committed by GitHub
commit f9a211220c
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
2 changed files with 23 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

20
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
View file

@ -1721,6 +1721,26 @@ private:
break;
}
case OpCode::Type::Bfi: {
UNIMPLEMENTED_IF(instr.generates_cc);
const auto [base, packed_shift] = [&]() -> std::tuple<std::string, std::string> {
switch (opcode->get().GetId()) {
case OpCode::Id::BFI_IMM_R:
return {regs.GetRegisterAsInteger(instr.gpr39, 0, false),
std::to_string(instr.alu.GetSignedImm20_20())};
default:
UNREACHABLE();
}
}();
const std::string offset = '(' + packed_shift + " & 0xff)";
const std::string bits = "((" + packed_shift + " >> 8) & 0xff)";
const std::string insert = regs.GetRegisterAsInteger(instr.gpr8, 0, false);
regs.SetRegisterToInteger(
instr.gpr0, false, 0,
"bitfieldInsert(" + base + ", " + insert + ", " + offset + ", " + bits + ')', 1, 1);
break;
}
case OpCode::Type::Shift: {
std::string op_a = regs.GetRegisterAsInteger(instr.gpr8, 0, true);
std::string op_b;