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Support a fetch window start on line 0.

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This commit is contained in:
Thomas Harte 2021-11-28 05:37:49 -05:00
parent 373847e2b7
commit 8584ee609f
1 changed files with 3 additions and 3 deletions
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6
Machines/Amiga/Chipset.cpp
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@ -634,9 +634,6 @@ template <bool stop_on_cpu> Chipset::Changes Chipset::run(HalfCycles length) {
line_cycle_ = 0;
++y_;
fetch_vertical_ |= y_ == display_window_start_[1];
fetch_vertical_ &= y_ != display_window_stop_[1];
if(did_fetch_) {
bitplanes_.do_end_of_line();
previous_bitplanes_.clear();
@ -662,6 +659,9 @@ template <bool stop_on_cpu> Chipset::Changes Chipset::run(HalfCycles length) {
for(auto &sprite: sprites_) {
sprite.advance_line(y_, y_ == vertical_blank_height_);
}
fetch_vertical_ |= y_ == display_window_start_[1];
fetch_vertical_ &= y_ != display_window_stop_[1];
}
assert(line_cycle_ < line_length_ * 4);
}