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fix rom boot read for cgb

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This commit is contained in:
Tobias Gunkel
2025-08-24 09:01:36 +02:00
parent e14faf7df7
commit 7e7bc68519
1 changed files with 4 additions and 3 deletions
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lib/peanut_gb.h
+4 -3
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@@ -827,9 +827,10 @@ uint8_t __gb_read(struct gb_s *gb, uint16_t addr)
case 0x0: case 0x0:
/* IO_BOOT is only set to 1 if gb->gb_bootrom_read was not NULL /* IO_BOOT is only set to 1 if gb->gb_bootrom_read was not NULL
* on reset. */ * on reset. */
if(gb->hram_io[IO_BOOT] == 0 && addr < 0x0100) if(gb->hram_io[IO_BOOT] == 0) {
{ if ((gb->cgb.cgbMode && addr < 0x0900) || (!gb->cgb.cgbMode && addr < 0x0100)) {
return gb->gb_bootrom_read(gb, addr); return gb->gb_bootrom_read(gb, addr);
}
} }
/* Fallthrough */ /* Fallthrough */