mirror of
https://github.com/hedge-dev/XenonRecomp.git
synced 2025-10-30 07:11:38 +00:00
590 lines
21 KiB
C++
590 lines
21 KiB
C++
#include <file.h>
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#include <image.h>
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#include <function.h>
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#include <format>
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#include <print>
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#include <disasm.h>
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#include <filesystem>
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#define TEST_FILE "cond.elf"
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int main()
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{
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const auto file = LoadFile(TEST_FILE).value();
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auto image = Image::ParseImage(file.data(), file.size()).value();
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// TODO: Load functions from an existing database
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std::vector<Function> functions;
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for (const auto& section : image.sections)
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{
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if (!(section.flags & SectionFlags_Code))
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{
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continue;
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}
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size_t base = section.base;
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uint8_t* data = section.data;
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uint8_t* dataEnd = section.data + section.size;
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while (data < dataEnd)
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{
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if (*(uint32_t*)data == 0)
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{
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data += 4;
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base += 4;
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continue;
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}
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const auto& fn = functions.emplace_back(Function::Analyze(data, dataEnd - data, base));
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data += fn.size;
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base += fn.size;
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image.symbols.emplace(std::format("sub_{:X}", fn.base), fn.base, fn.size, Symbol_Function);
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}
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}
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std::filesystem::create_directory("out");
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FILE* f = fopen("out/" TEST_FILE ".cpp", "w");
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std::println(f, "#include <ppc_context.h>\n");
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for (const auto& fn : functions)
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{
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auto base = fn.base;
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auto end = base + fn.size;
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auto* data = (uint32_t*)image.Find(base);
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std::string name = "";
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auto symbol = image.symbols.find(base);
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if (symbol != image.symbols.end())
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{
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name = symbol->name;
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}
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else
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{
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name = std::format("sub_{:X}", base);
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}
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std::println(f, "void {}(PPCContext& __restrict ctx, uint8_t* __restrict base) {{", name);
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std::println(f, "\tuint32_t ea;\n");
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ppc_insn insn;
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while (base < end)
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{
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auto block = fn.SearchBlock(base);
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if (block != -1 && (fn.base + fn.blocks[block].base) == base)
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std::println(f, "loc_{:X}:", base);
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ppc::Disassemble(data, 4, base, insn);
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base += 4;
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++data;
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if (insn.opcode == nullptr)
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{
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std::println(f, "\t// {:x} {}", base - 4, insn.op_str);
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}
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else
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{
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// TODO: need to handle instructions that treat r0 as 0
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std::println(f, "\t// {:x} {} {}", base - 4, insn.opcode->name, insn.op_str);
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switch (insn.opcode->id)
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{
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case PPC_INST_ADD:
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// TODO: . variant
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std::println(f, "\tctx.r{}.u64 = ctx.r{}.u64 + ctx.r{}.u64;", insn.operands[0], insn.operands[1], insn.operands[2]);
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break;
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case PPC_INST_ADDI:
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std::println(f, "\tctx.r{}.s64 = ctx.r{}.s64 + {};", insn.operands[0], insn.operands[1], static_cast<int32_t>(insn.operands[2]));
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break;
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case PPC_INST_ADDIC:
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break;
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case PPC_INST_ADDIS:
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// TODO: validate the sign extend
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std::println(f, "\tctx.r{}.s64 = ctx.r{}.s64 + {};", insn.operands[0], insn.operands[1], static_cast<int32_t>(insn.operands[2] << 16));
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break;
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case PPC_INST_ADDZE:
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break;
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case PPC_INST_AND:
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// TODO: . variant
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std::println(f, "\tctx.r{}.u64 = ctx.r{}.u64 & ctx.r{}.u64;", insn.operands[0], insn.operands[1], insn.operands[2]);
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break;
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case PPC_INST_ANDC:
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// TODO: . variant
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std::println(f, "\tctx.r{}.u64 = ctx.r{}.u64 & ~ctx.r{}.u64;", insn.operands[0], insn.operands[1], insn.operands[2]);
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break;
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case PPC_INST_ANDI:
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// TODO: . variant
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std::println(f, "\tctx.r{}.u64 = ctx.r{}.u64 & {};", insn.operands[0], insn.operands[1], insn.operands[2]);
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break;
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case PPC_INST_ANDIS:
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// TODO: . variant
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std::println(f, "\tctx.r{}.u64 = ctx.r{}.u64 & {};", insn.operands[0], insn.operands[1], insn.operands[2] << 16);
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break;
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case PPC_INST_ATTN:
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// undefined instruction
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break;
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case PPC_INST_B:
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case PPC_INST_BCTR:
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case PPC_INST_BCTRL:
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case PPC_INST_BDNZ:
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case PPC_INST_BDNZF:
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case PPC_INST_BEQ:
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case PPC_INST_BEQLR:
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case PPC_INST_BGE:
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case PPC_INST_BGELR:
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case PPC_INST_BGT:
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case PPC_INST_BGTLR:
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break;
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case PPC_INST_BL:
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{
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std::string targetName = "";
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auto targetSymbol = image.symbols.find(insn.operands[0]);
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if (targetSymbol != image.symbols.end() && targetSymbol->type == Symbol_Function)
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{
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targetName = targetSymbol->name;
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}
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else
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{
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targetName = std::format("sub_{:X}", insn.operands[0]);
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}
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std::println(f, "\tctx.lr = 0x{:X};", base);
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std::println(f, "\t{}(ctx, base);", targetName);
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break;
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}
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case PPC_INST_BLE:
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case PPC_INST_BLELR:
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break;
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case PPC_INST_BLR:
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// TODO: do they use this for anything other than a return?
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std::println(f, "\treturn;");
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break;
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case PPC_INST_BLRL:
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case PPC_INST_BLT:
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case PPC_INST_BLTLR:
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case PPC_INST_BNE:
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case PPC_INST_BNECTR:
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case PPC_INST_BNELR:
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case PPC_INST_CCTPL:
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case PPC_INST_CCTPM:
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case PPC_INST_CLRLDI:
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case PPC_INST_CLRLWI:
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case PPC_INST_CMPD:
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case PPC_INST_CMPDI:
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case PPC_INST_CMPLD:
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case PPC_INST_CMPLDI:
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case PPC_INST_CMPLW:
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case PPC_INST_CMPLWI:
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case PPC_INST_CMPW:
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case PPC_INST_CMPWI:
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case PPC_INST_CNTLZD:
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case PPC_INST_CNTLZW:
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case PPC_INST_DB16CYC:
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case PPC_INST_DCBF:
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// no op
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break;
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case PPC_INST_DCBT:
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// no op
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break;
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case PPC_INST_DCBTST:
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case PPC_INST_DCBZ:
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case PPC_INST_DCBZL:
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case PPC_INST_DIVD:
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case PPC_INST_DIVDU:
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case PPC_INST_DIVW:
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case PPC_INST_DIVWU:
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break;
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case PPC_INST_EIEIO:
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// no op
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break;
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case PPC_INST_EXTSB:
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case PPC_INST_EXTSH:
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case PPC_INST_EXTSW:
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case PPC_INST_FABS:
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case PPC_INST_FADD:
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case PPC_INST_FADDS:
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case PPC_INST_FCFID:
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case PPC_INST_FCMPU:
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case PPC_INST_FCTID:
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case PPC_INST_FCTIDZ:
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case PPC_INST_FCTIWZ:
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case PPC_INST_FDIV:
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case PPC_INST_FDIVS:
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case PPC_INST_FMADD:
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case PPC_INST_FMADDS:
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case PPC_INST_FMR:
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case PPC_INST_FMSUB:
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case PPC_INST_FMSUBS:
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case PPC_INST_FMUL:
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case PPC_INST_FMULS:
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case PPC_INST_FNABS:
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case PPC_INST_FNEG:
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case PPC_INST_FNMADDS:
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case PPC_INST_FNMSUB:
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case PPC_INST_FNMSUBS:
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case PPC_INST_FRES:
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case PPC_INST_FRSP:
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case PPC_INST_FSEL:
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case PPC_INST_FSQRT:
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case PPC_INST_FSQRTS:
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case PPC_INST_FSUB:
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case PPC_INST_FSUBS:
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break;
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case PPC_INST_LBZ:
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std::println(f, "\tctx.r{}.u64 = PPC_LOAD_U8({} + ctx.r{}.u32);", insn.operands[0], int32_t(insn.operands[1]), insn.operands[2]);
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break;
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case PPC_INST_LBZU:
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std::println(f, "\tea = {} + ctx.r{}.u32;", int32_t(insn.operands[1]), insn.operands[2]);
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std::println(f, "\tctx.r{}.u64 = PPC_LOAD_U8(ea);", insn.operands[0]);
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std::println(f, "\tctx.r{}.u64 = ea;", insn.operands[2]);
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break;
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case PPC_INST_LBZX:
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std::println(f, "\tctx.r{}.u64 = PPC_LOAD_U8(ctx.r{}.u32 + ctx.r{}.u32);", insn.operands[0], insn.operands[1], insn.operands[2]);
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break;
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case PPC_INST_LD:
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std::println(f, "\tctx.r{}.u64 = PPC_LOAD_U64({} + ctx.r{}.u32);", insn.operands[0], int32_t(insn.operands[1]), insn.operands[2]);
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break;
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case PPC_INST_LDARX:
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case PPC_INST_LDU:
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case PPC_INST_LDX:
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case PPC_INST_LFD:
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case PPC_INST_LFDX:
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case PPC_INST_LFS:
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case PPC_INST_LFSX:
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case PPC_INST_LHA:
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case PPC_INST_LHAX:
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case PPC_INST_LHZ:
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case PPC_INST_LHZX:
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break;
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case PPC_INST_LI:
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// TODO: validate the sign extend
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std::println(f, "\tctx.r{}.s64 = {};", insn.operands[0], int32_t(insn.operands[1]));
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break;
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case PPC_INST_LIS:
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// TODO: validate the sign extend
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std::println(f, "\tctx.r{}.s64 = {};", insn.operands[0], int32_t(insn.operands[1] << 16));
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break;
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case PPC_INST_LVEWX:
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case PPC_INST_LVEWX128:
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case PPC_INST_LVLX:
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case PPC_INST_LVLX128:
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case PPC_INST_LVRX:
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case PPC_INST_LVRX128:
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case PPC_INST_LVSL:
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case PPC_INST_LVSR:
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case PPC_INST_LVX:
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case PPC_INST_LVX128:
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case PPC_INST_LWA:
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case PPC_INST_LWARX:
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case PPC_INST_LWAX:
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case PPC_INST_LWBRX:
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break;
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case PPC_INST_LWSYNC:
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// no op
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break;
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case PPC_INST_LWZ:
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std::println(f, "\tctx.r{}.u64 = PPC_LOAD_U32({} + ctx.r{}.u32);", insn.operands[0], int32_t(insn.operands[1]), insn.operands[2]);
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break;
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case PPC_INST_LWZU:
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case PPC_INST_LWZX:
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case PPC_INST_MFCR:
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case PPC_INST_MFFS:
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break;
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case PPC_INST_MFLR:
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std::println(f, "\tctx.r{}.u64 = ctx.lr;", insn.operands[0]);
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break;
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case PPC_INST_MFMSR:
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case PPC_INST_MFOCRF:
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case PPC_INST_MFTB:
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break;
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case PPC_INST_MR:
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// TODO: . variant
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std::println(f, "\tctx.r{}.u64 = ctx.r{}.u64;", insn.operands[0], insn.operands[1]);
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break;
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case PPC_INST_MTCR:
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case PPC_INST_MTCTR:
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case PPC_INST_MTFSF:
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break;
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case PPC_INST_MTLR:
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std::println(f, "\tctx.lr = ctx.r{}.u64;", insn.operands[0]);
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break;
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case PPC_INST_MTMSRD:
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case PPC_INST_MTXER:
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case PPC_INST_MULCHWU:
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case PPC_INST_MULHHW:
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case PPC_INST_MULHW:
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case PPC_INST_MULHWU:
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case PPC_INST_MULLD:
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break;
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case PPC_INST_MULLI:
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std::println(f, "\tctx.r{}.s64 = ctx.r{}.s64 * {};", insn.operands[0], insn.operands[1], static_cast<int32_t>(insn.operands[2]));
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break;
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case PPC_INST_MULLW:
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break;
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case PPC_INST_NAND:
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std::println(f, "\tctx.r{}.u64 = ~(ctx.r{}.u64 & ctx.r{}.u64);", insn.operands[0], insn.operands[1], insn.operands[2]);
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break;
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case PPC_INST_NEG:
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// TODO: . variant
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std::println(f, "\tctx.r{}.s64 = -ctx.r{}.s64;", insn.operands[0], insn.operands[1]);
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break;
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case PPC_INST_NOP:
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// no op
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break;
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case PPC_INST_NOR:
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std::println(f, "\tctx.r{}.u64 = ~(ctx.r{}.u64 | ctx.r{}.u64);", insn.operands[0], insn.operands[1], insn.operands[2]);
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break;
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case PPC_INST_NOT:
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// TODO: . variant
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std::println(f, "\tctx.r{}.u64 = ~ctx.r{}.u64;", insn.operands[0], insn.operands[1]);
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break;
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case PPC_INST_OR:
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// TODO: . variant
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std::println(f, "\tctx.r{}.u64 = ctx.r{}.u64 | ctx.r{}.u64;", insn.operands[0], insn.operands[1], insn.operands[2]);
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break;
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case PPC_INST_ORC:
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std::println(f, "\tctx.r{}.u64 = ctx.r{}.u64 | ~ctx.r{}.u64;", insn.operands[0], insn.operands[1], insn.operands[2]);
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break;
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case PPC_INST_ORI:
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std::println(f, "\tctx.r{}.u64 = ctx.r{}.u64 | {};", insn.operands[0], insn.operands[1], insn.operands[2]);
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break;
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case PPC_INST_ORIS:
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std::println(f, "\tctx.r{}.u64 = ctx.r{}.u64 | {}", insn.operands[0], insn.operands[1], insn.operands[2] << 16);
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break;
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case PPC_INST_RLDICL:
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case PPC_INST_RLDICR:
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case PPC_INST_RLDIMI:
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case PPC_INST_RLWIMI:
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case PPC_INST_RLWINM:
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case PPC_INST_ROTLDI:
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case PPC_INST_ROTLW:
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case PPC_INST_ROTLWI:
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case PPC_INST_SLD:
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case PPC_INST_SLW:
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case PPC_INST_SRAD:
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case PPC_INST_SRADI:
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case PPC_INST_SRAW:
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case PPC_INST_SRAWI:
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case PPC_INST_SRD:
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case PPC_INST_SRW:
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case PPC_INST_STB:
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case PPC_INST_STBU:
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case PPC_INST_STBX:
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case PPC_INST_STD:
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case PPC_INST_STDCX:
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case PPC_INST_STDU:
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case PPC_INST_STDX:
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case PPC_INST_STFD:
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case PPC_INST_STFDX:
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case PPC_INST_STFIWX:
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case PPC_INST_STFS:
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case PPC_INST_STFSX:
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case PPC_INST_STH:
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case PPC_INST_STHBRX:
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case PPC_INST_STHX:
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case PPC_INST_STVEHX:
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case PPC_INST_STVEWX:
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case PPC_INST_STVEWX128:
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case PPC_INST_STVLX:
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case PPC_INST_STVLX128:
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case PPC_INST_STVRX:
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case PPC_INST_STVRX128:
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case PPC_INST_STVX:
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case PPC_INST_STVX128:
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break;
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case PPC_INST_STW:
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std::println(f, "\tPPC_STORE_U32({} + ctx.r{}.u32, ctx.r{}.u32);", int32_t(insn.operands[1]), insn.operands[2], insn.operands[0]);
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break;
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case PPC_INST_STWBRX:
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case PPC_INST_STWCX:
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break;
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case PPC_INST_STWU:
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std::println(f, "\tea = {} + ctx.r{}.u32;", int32_t(insn.operands[1]), insn.operands[2]);
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std::println(f, "\tPPC_STORE_U32(ea, ctx.r{}.u32);", insn.operands[0]);
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std::println(f, "\tctx.r{}.u64 = ea;", insn.operands[0]);
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break;
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case PPC_INST_STWUX:
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case PPC_INST_STWX:
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case PPC_INST_SUBF:
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case PPC_INST_SUBFC:
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case PPC_INST_SUBFE:
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case PPC_INST_SUBFIC:
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case PPC_INST_SYNC:
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case PPC_INST_TDLGEI:
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|
case PPC_INST_TDLLEI:
|
|
case PPC_INST_TWI:
|
|
case PPC_INST_TWLGEI:
|
|
case PPC_INST_TWLLEI:
|
|
case PPC_INST_VADDFP:
|
|
case PPC_INST_VADDFP128:
|
|
case PPC_INST_VADDSHS:
|
|
case PPC_INST_VADDUBM:
|
|
case PPC_INST_VADDUBS:
|
|
case PPC_INST_VADDUHM:
|
|
case PPC_INST_VADDUWM:
|
|
case PPC_INST_VADDUWS:
|
|
case PPC_INST_VAND:
|
|
case PPC_INST_VAND128:
|
|
case PPC_INST_VANDC128:
|
|
case PPC_INST_VAVGSB:
|
|
case PPC_INST_VAVGSH:
|
|
case PPC_INST_VAVGUB:
|
|
case PPC_INST_VCFPSXWS128:
|
|
case PPC_INST_VCFSX:
|
|
case PPC_INST_VCFUX:
|
|
case PPC_INST_VCMPBFP128:
|
|
case PPC_INST_VCMPEQFP:
|
|
case PPC_INST_VCMPEQFP128:
|
|
case PPC_INST_VCMPEQUB:
|
|
case PPC_INST_VCMPEQUW:
|
|
case PPC_INST_VCMPEQUW128:
|
|
case PPC_INST_VCMPGEFP:
|
|
case PPC_INST_VCMPGEFP128:
|
|
case PPC_INST_VCMPGTFP:
|
|
case PPC_INST_VCMPGTFP128:
|
|
case PPC_INST_VCMPGTUB:
|
|
case PPC_INST_VCMPGTUH:
|
|
case PPC_INST_VCSXWFP128:
|
|
case PPC_INST_VCTSXS:
|
|
case PPC_INST_VCUXWFP128:
|
|
case PPC_INST_VEXPTEFP128:
|
|
case PPC_INST_VLOGEFP128:
|
|
case PPC_INST_VMADDCFP128:
|
|
case PPC_INST_VMADDFP:
|
|
case PPC_INST_VMADDFP128:
|
|
case PPC_INST_VMAXFP:
|
|
case PPC_INST_VMAXFP128:
|
|
case PPC_INST_VMAXSW:
|
|
case PPC_INST_VMINFP:
|
|
case PPC_INST_VMINFP128:
|
|
case PPC_INST_VMRGHB:
|
|
case PPC_INST_VMRGHH:
|
|
case PPC_INST_VMRGHW:
|
|
case PPC_INST_VMRGHW128:
|
|
case PPC_INST_VMRGLB:
|
|
case PPC_INST_VMRGLH:
|
|
case PPC_INST_VMRGLW:
|
|
case PPC_INST_VMRGLW128:
|
|
case PPC_INST_VMSUM3FP128:
|
|
case PPC_INST_VMSUM4FP128:
|
|
case PPC_INST_VMULFP128:
|
|
case PPC_INST_VNMSUBFP:
|
|
case PPC_INST_VNMSUBFP128:
|
|
case PPC_INST_VOR:
|
|
case PPC_INST_VOR128:
|
|
case PPC_INST_VPERM:
|
|
case PPC_INST_VPERM128:
|
|
case PPC_INST_VPERMWI128:
|
|
case PPC_INST_VPKD3D128:
|
|
case PPC_INST_VPKSHUS:
|
|
case PPC_INST_VREFP:
|
|
case PPC_INST_VREFP128:
|
|
case PPC_INST_VRFIM128:
|
|
case PPC_INST_VRFIN:
|
|
case PPC_INST_VRFIN128:
|
|
case PPC_INST_VRFIZ128:
|
|
case PPC_INST_VRLIMI128:
|
|
case PPC_INST_VRSQRTEFP:
|
|
case PPC_INST_VRSQRTEFP128:
|
|
case PPC_INST_VSEL:
|
|
case PPC_INST_VSLB:
|
|
case PPC_INST_VSLDOI:
|
|
case PPC_INST_VSLDOI128:
|
|
case PPC_INST_VSLW128:
|
|
case PPC_INST_VSPLTH:
|
|
case PPC_INST_VSPLTISB:
|
|
case PPC_INST_VSPLTISW:
|
|
case PPC_INST_VSPLTISW128:
|
|
case PPC_INST_VSPLTW:
|
|
case PPC_INST_VSPLTW128:
|
|
case PPC_INST_VSR:
|
|
case PPC_INST_VSRAW128:
|
|
case PPC_INST_VSRW:
|
|
case PPC_INST_VSRW128:
|
|
case PPC_INST_VSUBFP:
|
|
case PPC_INST_VSUBFP128:
|
|
case PPC_INST_VSUBSWS:
|
|
case PPC_INST_VSUBUBS:
|
|
case PPC_INST_VSUBUHM:
|
|
case PPC_INST_VUPKD3D128:
|
|
case PPC_INST_VUPKHSB128:
|
|
case PPC_INST_VUPKHSH:
|
|
case PPC_INST_VUPKLSB128:
|
|
case PPC_INST_VUPKLSH:
|
|
case PPC_INST_VXOR:
|
|
case PPC_INST_VXOR128:
|
|
break;
|
|
|
|
case PPC_INST_XOR:
|
|
// TODO: . variant
|
|
std::println(f, "\tctx.r{}.u64 = ctx.r{}.u64 ^ ctx.r{}.u64;", insn.operands[0], insn.operands[1], insn.operands[2]);
|
|
break;
|
|
|
|
case PPC_INST_XORI:
|
|
std::println(f, "\tctx.r{}.u64 = ctx.r{}.u64 ^ {};", insn.operands[0], insn.operands[1], insn.operands[2]);
|
|
break;
|
|
|
|
case PPC_INST_XORIS:
|
|
std::println(f, "\tctx.r{}.u64 = ctx.r{}.u64 ^ {};", insn.operands[0], insn.operands[1], insn.operands[2] << 16);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
std::println(f, "}}\n");
|
|
}
|
|
|
|
fclose(f);
|
|
|
|
return 0;
|
|
}
|