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Minor regression fix

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This commit is contained in:
Lior Halphon
2024-07-26 02:43:31 +03:00
parent b1ea179513
commit 5eb0e5d605
1 changed files with 4 additions and 10 deletions
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14
Core/display.c
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@@ -1728,15 +1728,6 @@ void GB_display_run(GB_gameboy_t *gb, unsigned cycles, bool force)
goto skip_slow_mode_3;
}
}
if (!gb->wx_triggered && gb->wy_triggered && (gb->io_registers[GB_IO_LCDC] & GB_LCDC_WIN_ENABLE)) {
if (gb->io_registers[GB_IO_WX] == 0) {
fifo_clear(&gb->bg_fifo);
fifo_clear(&gb->oam_fifo);
gb->wx_triggered = true;
gb->window_y++;
gb->window_tile_x = 0;
}
}
while (true) {
/* Handle window */
/* TODO: It appears that WX checks if the window begins *next* pixel, not *this* pixel. For this reason,
@@ -1747,7 +1738,10 @@ void GB_display_run(GB_gameboy_t *gb, unsigned cycles, bool force)
if (!gb->wx_triggered && gb->wy_triggered && (gb->io_registers[GB_IO_LCDC] & GB_LCDC_WIN_ENABLE)) {
bool should_activate_window = false;
if (gb->io_registers[GB_IO_WX] < 166 + GB_is_cgb(gb)) {
if (unlikely(gb->io_registers[GB_IO_WX] == 0)) {
should_activate_window = (gb->position_in_line == (uint8_t)-16 && (gb->io_registers[GB_IO_SCX] & 7)) || (gb->position_in_line == (uint8_t)-7);
}
else if (gb->io_registers[GB_IO_WX] < 166 + GB_is_cgb(gb)) {
if (gb->io_registers[GB_IO_WX] == (uint8_t) (gb->position_in_line + 7)) {
should_activate_window = true;
}