1993 super hik 4 in 1
Type | multi | Mapper | 918 | Original mapper | 4 | PCB marks | 820733C 4373-T | Tags: | | Uploaded: | 2019-08-28 02:47:52 |
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Elements:
Chip signature:
K005A(27F080)+K005B(27F080)+AX5202P(MMC3)+74161+74157
PCB top:
PCB bottom:
Shell top:
Shell bottom:
Screenshoots:
Extra info:
PRG A16..A13, CHR A16..A10, MIRRORING - controlled by MMC3
additional register at $6000-$7fff
fedcba9876543210
A~[011..........cba]
|||
||+- CHR mode
|+-- PRG A17/CHR A17
+--- PRG A18
| PRG PRG | CHR CHR |
a | A18 A17 | A18 A17 |
--+---------+---------|
0 | c b | 0 MC3 |
1 | c b | 1 b |
--
dumping:
cpuWrite(0xa001, 0x80);
for (int b = 0; b < 4; ++b) {
cpuWrite(0x6000 | (b << 1), 0);
for (int a = 0; a < 128 / 8; ++a) {
cpuWrite(0x8000, 6);
cpuWrite(0x8001, a);
cpuRead(0x8000, 0x9fff);
}
}
cpuWrite(0x6000, 0);
cpuWrite(0x8000, 2);
for (int a = 0; a < 256 / 1; ++a) {
cpuWrite(0x8001, a);
ppuRead(0x1000, 0x13ff);
}
for (int b = 0; b < 2; ++b) {
cpuWrite(0x6001 | (b << 1), 0);
for (int a = 0; a < 128 / 1; ++a) {
cpuWrite(0x8001, a);
ppuRead(0x1000, 0x13ff);
}
}
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