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Fixes to safe reads, closes #422

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This commit is contained in:
Lior Halphon 2021-12-18 14:56:33 +02:00
parent 5127cb0022
commit eaccd792ed
1 changed files with 6 additions and 1 deletions
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5
Core/memory.c
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@ -434,7 +434,9 @@ static uint8_t read_high_memory(GB_gameboy_t *gb, uint16_t addr)
if (addr < 0xFF00) { if (addr < 0xFF00) {
if (gb->oam_write_blocked && !GB_is_cgb(gb)) { if (gb->oam_write_blocked && !GB_is_cgb(gb)) {
if (!gb->disable_oam_corruption) {
GB_trigger_oam_bug_read(gb, addr); GB_trigger_oam_bug_read(gb, addr);
}
return 0xff; return 0xff;
} }
@ -705,6 +707,9 @@ uint8_t GB_read_memory(GB_gameboy_t *gb, uint16_t addr)
uint8_t GB_safe_read_memory(GB_gameboy_t *gb, uint16_t addr) uint8_t GB_safe_read_memory(GB_gameboy_t *gb, uint16_t addr)
{ {
if (unlikely(addr == 0xFF00 + GB_IO_JOYP)) {
return gb->io_registers[GB_IO_JOYP];
}
gb->disable_oam_corruption = true; gb->disable_oam_corruption = true;
uint8_t data = read_map[addr >> 12](gb, addr); uint8_t data = read_map[addr >> 12](gb, addr);
gb->disable_oam_corruption = false; gb->disable_oam_corruption = false;