Max
/
SameBoy
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Fixed several issues involving LY change timing, as well as an LYC issue in models prior to CGB-D

This commit is contained in:
Lior Halphon 2021-12-14 20:27:38 +02:00
parent 7e5e672988
commit f78fac12c2
1 changed files with 7 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
Core/display.c
View File

@ -890,7 +890,7 @@ void GB_display_run(GB_gameboy_t *gb, uint8_t cycles)
GB_STATE(gb, display, 15);
GB_STATE(gb, display, 16);
GB_STATE(gb, display, 17);
// GB_STATE(gb, display, 19);
GB_STATE(gb, display, 19);
GB_STATE(gb, display, 20);
GB_STATE(gb, display, 21);
GB_STATE(gb, display, 22);
@ -1348,12 +1348,13 @@ abort_fetching_object:
gb->wx166_glitch = false;
/* Lines 144 - 152 */
for (; gb->current_line < VIRTUAL_LINES - 1; gb->current_line++) {
gb->io_registers[GB_IO_LY] = gb->current_line;
gb->ly_for_comparison = -1;
if (unlikely(gb->lcd_line_callback)) {
gb->lcd_line_callback(gb, gb->current_line);
}
GB_STAT_update(gb);
GB_SLEEP(gb, display, 26, 2);
gb->io_registers[GB_IO_LY] = gb->current_line;
if (gb->current_line == LINES && !gb->stat_interrupt_line && (gb->io_registers[GB_IO_STAT] & 0x20)) {
gb->io_registers[GB_IO_IF] |= 2;
}
@ -1406,12 +1407,13 @@ abort_fetching_object:
/* TODO: Verified on SGB2 and CGB-E. Actual interrupt timings not tested. */
/* Lines 153 */
gb->io_registers[GB_IO_LY] = 153;
gb->ly_for_comparison = -1;
GB_STAT_update(gb);
GB_SLEEP(gb, display, 14, (gb->model > GB_MODEL_CGB_C)? 4: 6);
GB_SLEEP(gb, display, 19, 2);
gb->io_registers[GB_IO_LY] = 153;
GB_SLEEP(gb, display, 14, (gb->model > GB_MODEL_CGB_C)? 2: 4);
if (!GB_is_cgb(gb)) {
if (gb->model <= GB_MODEL_CGB_C && !gb->cgb_double_speed) {
gb->io_registers[GB_IO_LY] = 0;
}
gb->ly_for_comparison = 153;