2500 in 1
Elements:
Chip signature:
6264A+27F080+16V8+74273+74153+7402+74157+7432+7474+27256
PCB top:
PCB bottom:
Shell top:
No photo
Shell bottom:
No photo
Screenshoots:
Extra info:
Similar:
e:\Pulpit\projekty\elektronika\6502, nes, pegasus\cart-RevEn,Naprawa\FcGamerCarts\fc16\
e:\Pulpit\projekty\elektronika\6502, nes, pegasus\cart-RevEn,Naprawa\208 in 1\
fedcba9876543210
A~[1.....BPXPPPPpMV]
||||||||||
|||||||||+- 0=16K, 1=32K
||||||||+-- 0=V, 1=H
|+|+------- PRG BANK
| +-------- 0=UNROM, 1=NROM (CHR-ROM writes forbidden in NROM mode)
+---------- UNROM bit
X V | $8000 $C000
1 0 | PPPPPp PPPPPp
1 1 | PPPPP0 PPPPP1
0 0 | PPPPPp PPPBBB
0 1 | PPPPP0 PPPBBB
for (int j = 0; j < 1024 / 16; ++j) {
cpuWrite(0x8000 | shi(j, 0, 2) | shi(j, 1, 3) | shi(j, 2, 4) | shi(j, 3, 5) | shi(j, 4, 6) | shi(j, 5, 8), 0);
cpuRead(0x8000, 0xbfff);
}
-------------------------------------------------------
A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
1 R9 R8 R7 R6 R5 R4 R3 R2 M R0
M - MIRRORING: 0=V, 1=H
A19=R8
A18=R6
A17=R5
|$8000-$BFFF|$C000-$FFFF|
-----------------------------------------
R0 = 0, R7 = 0 A16=R4 A16=R9
A15=R3 A15=R9
A14=R2 A14=R9
CTR=R5 CTRL=R9
-----------------------------------------
R0 = 0, R7 = 1 A16=R4
A15=R3
A14=R2
CTR=R5
-----------------------------------------
R0 = 1, R7 = 0 A16=R4 A16=R9
A15=R3 A15=R9
A14=A14 A14=R9
CTR=R5 CTRL=R9
-----------------------------------------
R0 = 1, R7 = 1 A16=R4
A15=R3
A14=A14
CTR=R5
R7 = 0 Writes to CHR_RAM allowed
R7 = 1 -> Writes to CHR_RAM denied
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