Hello_User/XenonRecomp
1
0
Fork 0
mirror of https://github.com/hedge-dev/XenonRecomp.git synced 2025-07-23 05:23:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

Move C emit code to PowerRecomp

Browse Source
This commit is contained in:
Sajid
2024-09-09 23:23:04 +06:00
parent 267e19b854
commit cbfcdc3ebc
6 changed files with 149 additions and 100 deletions
Download Patch File Download Diff File Expand all files Collapse all files

96
PowerAnalyse/main.cpp
View File

@@ -7,7 +7,7 @@
int main()
{
const auto file = LoadFile("cond-fall.elf");
const auto file = LoadFile("cond-fall.elf").value();
auto image = Image::ParseImage(file.data(), file.size()).value();
for (const auto& section : image.sections)
@@ -72,99 +72,5 @@ int main()
}
std::println("");
FILE* f = fopen("add.elf.cpp", "w");
for (const auto& fn : functions)
{
auto base = fn.base;
auto end = base + fn.size;
auto* data = (uint32_t*)image.Find(base);
std::string name = "";
auto symbol = image.symbols.find(base);
if (symbol != image.symbols.end())
{
name = symbol->name;
}
else
{
name = std::format("sub_{:X}", base);
}
std::println(f, "void {}() {{", name);
ppc_insn insn;
while (base < end)
{
ppc::Disassemble(data, 4, base, insn);
base += 4;
++data;
if (insn.opcode == nullptr)
{
std::println(f, "\t// {:x} {}", base - 4, insn.op_str);
}
else
{
std::println(f, "\t// {:x} {} {}", base - 4, insn.opcode->name, insn.op_str);
switch (insn.opcode->id)
{
case PPC_INST_ADD:
std::println(f, "\tr{} = r{} + r{};", insn.operands[0], insn.operands[1], insn.operands[2]);
break;
case PPC_INST_ADDI:
std::println(f, "\tr{} = r{} + {};", insn.operands[0], insn.operands[1], insn.operands[2]);
break;
case PPC_INST_STWU:
std::println(f, "\tea = r{} + {};", insn.operands[2], static_cast<int32_t>(insn.operands[1]));
std::println(f, "\t*ea = byteswap(r{});", insn.operands[0]);
std::println(f, "\tr{} = ea;", insn.operands[2]);
break;
case PPC_INST_STW:
std::println(f, "\t*(r{} + {}) = byteswap(r{});", insn.operands[2], static_cast<int32_t>(insn.operands[1]), insn.operands[0]);
break;
case PPC_INST_MR:
std::println(f, "\tr{} = r{};", insn.operands[0], insn.operands[1]);
break;
case PPC_INST_LWZ:
std::println(f, "\tr{} = *(r{} + {});", insn.operands[0], insn.operands[2], insn.operands[1]);
break;
case PPC_INST_LI:
std::println(f, "\tr{} = {};", insn.operands[0], insn.operands[1]);
break;
case PPC_INST_MFLR:
std::println(f, "\tr{} = lr;", insn.operands[0]);
break;
case PPC_INST_MTLR:
std::println(f, "\tlr = r{};", insn.operands[0]);
break;
case PPC_INST_BLR:
std::println(f, "\treturn;");
break;
case PPC_INST_BL:
{
std::string targetName = "";
auto targetSymbol = image.symbols.find(insn.operands[0]);
if (targetSymbol != image.symbols.end() && targetSymbol->type == Symbol_Function)
{
targetName = targetSymbol->name;
}
else
{
targetName = std::format("sub_{:X}", insn.operands[0]);
}
std::println(f, "\tlr = 0x{:x};", base);
std::println(f, "\t{}();", targetName);
break;
}
}
}
}
std::println(f, "}}\n");
}
fclose(f);
return 0;
}