saulteafarmer/XenonRecomp
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Prettify main.cpp

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Dennis Stanistan 2025-03-04 03:38:40 +02:00 committed by GitHub
parent c7d9e1e1b2
commit 914b61d986
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1 changed files with 47 additions and 47 deletions
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94
XenonAnalyse/main.cpp
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@ -26,11 +26,11 @@ void ReadTable(Image& image, SwitchTable& table)
uint32_t pOffset;
ppc_insn insn;
auto* code = (uint32_t*)image.Find(table.base);
ppc::Disassemble(code, table.base, insn); // lis
pOffset = insn.operands[1] << 16; // Upper 16 bits
ppc::Disassemble(code, table.base, insn); // lis
pOffset = insn.operands[1] << 16; // Upper 16 bits
ppc::Disassemble(code + 2, table.base + 8, insn); // addi (skip rlwinm at +4)
pOffset += insn.operands[2]; // Lower 16 bits
ppc::Disassemble(code + 2, table.base + 8, insn); // addi (skip rlwinm at +4)
pOffset += insn.operands[2]; // Lower 16 bits
if (table.type == SWITCH_ABSOLUTE)
{
@ -213,53 +213,53 @@ int main(int argc, char** argv)
println("# Generated by XenonAnalyse");
auto scanPattern = [&](uint32_t* pattern, size_t count, size_t type)
{
for (const auto& section : image.sections)
{
for (const auto& section : image.sections)
if (!(section.flags & SectionFlags_Code))
{
if (!(section.flags & SectionFlags_Code))
{
continue;
}
size_t base = section.base;
uint8_t* data = section.data;
uint8_t* dataStart = section.data;
uint8_t* dataEnd = section.data + section.size;
while (data < dataEnd && data != nullptr)
{
data = (uint8_t*)SearchMask(data, pattern, count, dataEnd - data);
if (data != nullptr)
{
SwitchTable table{};
table.type = type;
ScanTable((uint32_t*)data, base + (data - dataStart), table);
// fmt::println("{:X} ; jmptable - {}", base + (data - dataStart), table.labels.size());
if (table.base != 0)
{
ReadTable(image, table);
printTable(table);
switches.emplace_back(std::move(table));
}
data += 4;
}
continue;
}
continue;
}
};
// adjusted for tag 2
uint32_t absoluteSwitch[] =
{
PPC_INST_LIS,
PPC_INST_RLWINM, // (slwi alias)
PPC_INST_ADDI,
PPC_INST_LWZX,
PPC_INST_MTCTR,
PPC_INST_BCTR
};
size_t base = section.base;
uint8_t* data = section.data;
uint8_t* dataStart = section.data;
uint8_t* dataEnd = section.data + section.size;
while (data < dataEnd && data != nullptr)
{
data = (uint8_t*)SearchMask(data, pattern, count, dataEnd - data);
if (data != nullptr)
{
SwitchTable table{};
table.type = type;
ScanTable((uint32_t*)data, base + (data - dataStart), table);
// fmt::println("{:X} ; jmptable - {}", base + (data - dataStart), table.labels.size());
if (table.base != 0)
{
ReadTable(image, table);
printTable(table);
switches.emplace_back(std::move(table));
}
data += 4;
}
continue;
}
}
};
// adjusted for tag 2
uint32_t absoluteSwitch[] =
{
PPC_INST_LIS,
PPC_INST_RLWINM, // (slwi alias)
PPC_INST_ADDI,
PPC_INST_LWZX,
PPC_INST_MTCTR,
PPC_INST_BCTR
};
uint32_t computedSwitch[] =
{