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[NES] Fixed mapper 228

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[NES] Fixed mapper 228
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nsx0r 2023-05-11 21:01:12 +02:00 committed by GitHub
parent 4c2a42de86
commit 7f40da5595
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 2 deletions
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6
Cart_Reader/NES.ino
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@ -3593,13 +3593,14 @@ void readPRG(bool readrom) {
case 228: case 228:
banks = int_pow(2, prgsize); banks = int_pow(2, prgsize);
write_prg_byte(0x8000, 0);
for (int i = 0; i < banks; i += 2) { // up to 1024k PRG 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) { // reading the 3rd 512k PRG chip (Action 52) if (prgsize > 5) { // reading the 3rd 512k PRG chip (Action 52)
for (int i = 0; i < 32; 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) {
@ -4665,8 +4666,9 @@ void readCHR(bool readrom) {
case 228: case 228:
banks = int_pow(2, chrsize) / 2; banks = int_pow(2, chrsize) / 2;
write_prg_byte(0x8000, 0);
for (int i = 0; i < banks; i++) { for (int i = 0; i < banks; i++) {
write_prg_byte((0x8000 + (i & 0x3C)) >> 2, (i & 0x03)); write_prg_byte(0x8000 + ((i & 0x3C) >> 2), i & 0x03);
for (word address = 0x0; address < 0x2000; address += 512) { for (word address = 0x0; address < 0x2000; address += 512) {
dumpCHR(address); dumpCHR(address);
} }