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added NES mapper 28

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added NES mapper 28, tested working with 2x Action 53 cartridges
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nsx0r 2022-11-19 09:04:06 +01:00 committed by GitHub
parent 46dd333bd4
commit 36fa976b53
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1 changed files with 20 additions and 0 deletions
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Cart_Reader/NES.ino
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@ -51,6 +51,7 @@ static const byte PROGMEM mapsize[] = {
24, 4, 4, 5, 5, 0, 0, // vrc6a (akumajou densetsu)
25, 3, 4, 5, 6, 0, 1, // vrc2c/vrc4b/vrc4d [sram r/w]
26, 4, 4, 5, 6, 1, 1, // vrc6b [sram r/w]
28, 5, 7, 0, 0, 0, 0, // Action 53 [UNLICENSED]
30, 4, 5, 0, 0, 0, 0, // unrom 512 (NESmaker) [UNLICENSED]
32, 3, 4, 5, 5, 0, 0, // irem g-101
33, 3, 4, 5, 6, 0, 0, // taito tc0190
@ -2696,6 +2697,25 @@ void readPRG(boolean readrom) {
}
}
break;
case 28: // using 32k mode for inner and outer banks, switching only with outer
banks = int_pow(2, prgsize) / 2;
write_prg_byte(0x5000, 0x81);
write_prg_byte(0x8000, 0);
write_prg_byte(0x5000, 0x80);
write_prg_byte(0x8000, 0);
write_prg_byte(0x5000, 0x01);
write_prg_byte(0x8000, 0);
write_prg_byte(0x5000, 0x00);
write_prg_byte(0x8000, 0);
for (int i = 0; i < banks; i++) {
write_prg_byte(0x5000, 0x81);
write_prg_byte(0x8000, i);
for (word address = 0x0; address < 0x8000; address += 512) {
dumpPRG(base, address);
}
}
break;
case 30: // 256K/512K
banks = int_pow(2, prgsize);