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Corrects occasional TMS sprite glitching.

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This commit is contained in:
Thomas Harte 2017-12-12 22:19:33 -05:00
parent 7bc1bcd493
commit 5d0c33d545
1 changed files with 7 additions and 6 deletions
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3
Components/9918/9918.cpp
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@ -204,7 +204,7 @@ void TMS9918::run_for(const HalfCycles cycles) {
}
// Four more access windows: no collection.
if(access_pointer_ >= 15 && access_pointer_ < 19)
if(access_pointer_ >= 15 && access_pointer_ < 19) {
access_pointer_ = std::min(19, access_slot);
// Start new sprite set if this is location 19.
@ -213,6 +213,7 @@ void TMS9918::run_for(const HalfCycles cycles) {
sprite_sets_[active_sprite_set_].active_sprite_slot = 0;
sprites_stopped_ = false;
}
}
// Then eight access windows fetch the y position for the first eight sprites.
while(access_pointer_ < 27 && access_pointer_ < access_slot) {