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fixing NES mapper 228

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that *should* work
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nsx0r 2022-11-09 10:54:58 +01:00 committed by GitHub
parent ca557ff9bb
commit fdc1911b5e
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1 changed files with 3 additions and 3 deletions
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Cart_Reader/NES.ino
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@ -3153,14 +3153,14 @@ void readPRG(boolean readrom) {
case 228: case 228:
banks = int_pow(2, prgsize); banks = int_pow(2, prgsize);
for (int i = 0; i < banks; i += 2) { for (int i = 0; i < banks; i += 2) { // up to 1024k PRG
write_prg_byte(0x8000 + ((i & 0x3F) << 6), 0); write_prg_byte(0x8000 + ((i & 0x3F) << 6), 0);
for (word address = 0x0; address < 0x8000; address += 512) { for (word address = 0x0; address < 0x8000; address += 512) {
dumpPRG(base, address); dumpPRG(base, address);
} }
} }
if (prgsize > 6) { if (prgsize > 6) { // reading the 3rd 512k PRG chip (Action 52)
for (int i = 0; i < banks; i += 2) { for (int i = 0; i < 32; i += 2) {
write_prg_byte(0x9800 + ((i & 0x1F) << 6), 0); write_prg_byte(0x9800 + ((i & 0x1F) << 6), 0);
for (word address = 0x0; address < 0x8000; address += 512) { for (word address = 0x0; address < 0x8000; address += 512) {
dumpPRG(base, address); dumpPRG(base, address);