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Made an attempt to spot Tigervision paging requests.

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This commit is contained in:
Thomas Harte 2017-03-11 13:12:23 -05:00
parent 3f36eeb071
commit bce5abd33b
1 changed files with 11 additions and 12 deletions
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23
StaticAnalyser/Atari/StaticAnalyser.cpp
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@ -93,11 +93,13 @@ static void DeterminePagingFor2kCartridge(StaticAnalyser::Target &target, const
static void DeterminePagingFor8kCartridge(StaticAnalyser::Target &target, const Storage::Cartridge::Cartridge::Segment &segment, const std::vector<StaticAnalyser::MOS6502::Disassembly> &disassemblies)
{
std::set<uint16_t> internal_accesses;
std::set<uint16_t> external_stores;
for(const StaticAnalyser::MOS6502::Disassembly &disassembly : disassemblies)
{
internal_accesses.insert(disassembly.internal_stores.begin(), disassembly.internal_stores.end());
internal_accesses.insert(disassembly.internal_modifies.begin(), disassembly.internal_modifies.end());
internal_accesses.insert(disassembly.internal_loads.begin(), disassembly.internal_loads.end());
external_stores.insert(disassembly.external_stores.begin(), disassembly.external_stores.end());
}
bool looks_like_atari = false;
@ -132,11 +134,13 @@ static void DeterminePagingForCartridge(StaticAnalyser::Target &target, const St
std::vector<StaticAnalyser::MOS6502::Disassembly> disassemblies;
std::set<uint16_t> internal_stores;
std::set<uint16_t> external_stores;
for(std::vector<uint8_t>::difference_type base = 0; base < segment.data.size(); base += 4096)
{
std::vector<uint8_t> sub_data(segment.data.begin() + base, segment.data.begin() + base + 4096);
disassemblies.push_back(StaticAnalyser::MOS6502::Disassemble(sub_data, address_mapper, {entry_address, break_address}));
internal_stores.insert(disassemblies.back().internal_stores.begin(), disassemblies.back().internal_stores.end());
external_stores.insert(disassemblies.back().external_stores.begin(), disassemblies.back().external_stores.end());
}
if(segment.data.size() == 8192)
@ -159,18 +163,13 @@ static void DeterminePagingForCartridge(StaticAnalyser::Target &target, const St
}
target.atari.uses_superchip = has_superchip;
if(is_ram_plus) target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::CBSRamPlus;
// if(internal_stores.size() > 4)
// {
// bool writes_above_128 = false;
// for(uint16_t address : internal_stores)
// {
// writes_above_128 |= ((address & 0x1fff) > 0x10ff) && ((address & 0x1fff) < 0x1200);
// }
// if(writes_above_128)
// target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::CBSRamPlus;
// else
// target.atari.uses_superchip = true;
// }
// check for a Tigervision or Tigervision-esque scheme
if(target.atari.paging_model == StaticAnalyser::Atari2600PagingModel::None)
{
bool looks_like_tigervision = external_stores.find(0x3f) != external_stores.end();
if(looks_like_tigervision) target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::Tigervision;
}
}
void StaticAnalyser::Atari::AddTargets(