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Add support for GB MBC5 8 MiB cartridges

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This commit is contained in:
Lesserkuma 2022-09-25 01:46:46 +02:00
parent 8713b49706
commit ff758768df
2 changed files with 12 additions and 2 deletions
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2
Cart_Reader/Cart_Reader.ino
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@ -40,7 +40,7 @@
And a special Thank You to all coders and contributors on Github and the Arduino forum: And a special Thank You to all coders and contributors on Github and the Arduino forum:
jiyunomegami, splash5, Kreeblah, ramapcsx2, PsyK0p4T, Dakkaron, majorpbx, Pickle, sdhizumi, jiyunomegami, splash5, Kreeblah, ramapcsx2, PsyK0p4T, Dakkaron, majorpbx, Pickle, sdhizumi,
Uzlopak, sakman55, Tombo89, scrap-a, borti4938, vogelfreiheit, CaitSith2, Modman, Uzlopak, sakman55, Tombo89, scrap-a, borti4938, vogelfreiheit, CaitSith2, Modman,
philenotfound, karimhadjsalem, nsx0r, ducky92, niklasweber, lesserkuma philenotfound, karimhadjsalem, nsx0r, ducky92, niklasweber, Lesserkuma
And to nocash for figuring out the secrets of the SFC Nintendo Power cartridge. And to nocash for figuring out the secrets of the SFC Nintendo Power cartridge.

12
Cart_Reader/GB.ino
View File

@ -463,6 +463,10 @@ void showCartInfo_GB() {
case 7: case 7:
print_Msg(F("4MB")); print_Msg(F("4MB"));
break; break;
case 8:
print_Msg(F("8MB"));
break;
} }
println_Msg(F("")); println_Msg(F(""));
@ -751,6 +755,9 @@ void getCartInfo_GB() {
case 0x07: case 0x07:
romBanks = 256; romBanks = 256;
break; break;
case 0x08:
romBanks = 512;
break;
default: default:
romBanks = 2; romBanks = 2;
} }
@ -919,7 +926,10 @@ void readROM_GB() {
} }
} }
else { else {
writeByte_GB(0x2100, currBank); if ((romType >= 0x19 && romType <= 0x1E) && (currBank == 0 || currBank == 256)) {
writeByte_GB(0x3000, (currBank >> 8) & 0xFF);
}
writeByte_GB(0x2100, currBank & 0xFF);
} }
} }
// Set ROM bank for MBC1 // Set ROM bank for MBC1