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Add workaround that further isolates whatever bug Spindizzy reveals.

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This commit is contained in:
Thomas Harte 2022-08-19 16:38:42 -04:00
parent a6b8285d9c
commit bfc77f1606
1 changed files with 21 additions and 6 deletions
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27
Machines/Amiga/Blitter.cpp
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@ -240,12 +240,27 @@ bool Blitter<record_bus>::advance_dma() {
// TODO: eliminate @c complete_immediately and this workaround.
// See commentary in Chipset.cpp.
// if constexpr (complete_immediately) {
// while(get_status() & 0x4000) {
// advance_dma<false>();
// }
// return true;
// }
if constexpr (complete_immediately) {
// HACK! HACK!! HACK!!!
//
// This resolves an issue with loading the particular copy of Spindizzy Worlds
// I am testing against.
//
// TODO: DO NOT PUBLISH THIS.
//
// This is committed solely so that I can continue researching the real, underlying
// issue across machines. It would not be acceptable to me to ship this.
// (and the printf is another reminder-to-self)
if(width_ == 8 && height_ == 32) {
printf("Accelerating %d x %d\n", width_, height_);
while(get_status() & 0x4000) {
advance_dma<false>();
}
return true;
}
}
if(line_mode_) {
not_zero_flag_ = false;