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Added an attempt, at least, at spotting the Activision titles. Which reduces back to only the one breakage, but this is getting a bit too much like spotting the hard-coded bytes.

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Thomas Harte 2017-03-12 21:14:12 -04:00
parent 2c07cce282
commit 0bcf9c30de
1 changed files with 11 additions and 0 deletions
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11
StaticAnalyser/Atari/StaticAnalyser.cpp
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@ -90,6 +90,17 @@ static void DeterminePagingFor2kCartridge(StaticAnalyser::Target &target, const
static void DeterminePagingFor8kCartridge(StaticAnalyser::Target &target, const Storage::Cartridge::Cartridge::Segment &segment, const StaticAnalyser::MOS6502::Disassembly &disassembly)
{
// Activision stack titles have their vectors at the top of the low 4k, not the top, and
// always list 0xf000 as both vectors; they do not repeat them
if(
segment.data[4095] == 0xf0 && segment.data[4093] == 0xf0 && segment.data[4094] == 0x00 && segment.data[4092] == 0x00 &&
(segment.data[8191] != 0xf0 || segment.data[8189] != 0xf0 || segment.data[8190] != 0x00 || segment.data[8188] != 0x00)
)
{
target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::ActivisionStack;
return;
}
// make an assumption that this is the Atari paging model
target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::Atari8k;