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Re-revokes fine scroll on the top two lines when requested.

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Thomas Harte 2018-10-04 19:18:15 -04:00
parent ca26dfcd61
commit aac97a8983
1 changed files with 10 additions and 8 deletions
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18
Components/9918/9918.cpp
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@ -650,15 +650,17 @@ void Base::draw_sms(int start, int end) {
// Shift the output window by the fine scroll amount, and fill in
// any border pixels that leaves on the left-hand side.
start -= master_system_.horizontal_scroll & 7;
end -= master_system_.horizontal_scroll & 7;
if(start < 0) {
while(start < end && start < 0) {
*pixel_target_ = master_system_.colour_ram[16 + background_colour_];
++pixel_target_;
++start;
if(row_ >= 16 || !master_system_.horizontal_scroll_lock) {
start -= master_system_.horizontal_scroll & 7;
end -= master_system_.horizontal_scroll & 7;
if(start < 0) {
while(start < end && start < 0) {
*pixel_target_ = master_system_.colour_ram[16 + background_colour_];
++pixel_target_;
++start;
}
if(start == end) return;
}
if(start == end) return;
}
const int shift = start & 7;