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

Better hueristics for wrong MBC type

Browse Source
This commit is contained in:
Lior Halphon 2020-04-25 23:18:03 +03:00
parent 0534b091a5
commit d1e3ad7790
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
Core/gb.c
View File

@ -484,13 +484,13 @@ done:;
// Fix a common wrong MBC error // Fix a common wrong MBC error
if (gb->rom[0x147] == 3) { // MBC1 + RAM + Battery if (gb->rom[0x147] == 3) { // MBC1 + RAM + Battery
if (gb->rom_size == 64 * 0x4000) { if (gb->rom_size >= 33 * 0x4000) {
for (unsigned i = 63 * 0x4000; i < 64 * 0x4000; i++) { for (unsigned i = 32 * 0x4000; i < 33 * 0x4000; i++) {
if (gb->rom[i]) { if (gb->rom[i]) {
gb->rom[0x147] = 0x10; // MBC3 + RTC + RAM + Battery gb->rom[0x147] = 0x10; // MBC3 + RTC + RAM + Battery
GB_configure_cart(gb); GB_configure_cart(gb);
gb->rom[0x147] = 0x3; gb->rom[0x147] = 0x3;
GB_log(gb, "ROM uses MBC1 but appears to use all 64 banks, assuming MBC3\n"); GB_log(gb, "ROM claims to use MBC1 but appears to require MBC3 or 5, assuming MBC3.\n");
break; break;
} }
} }