ZN wrote: > Well, there are actually all 16 lines, and a ROM select line (high). It's > just that the 14 lower bits are fed directly to the EPROM in a standard > cartridge. A third of a 74LS10 (tripple three input NAND gate) is used to > provide an active low chip select by detecting A14, A15 and ROM select > high. SInce ROM select is high whenever the first 64k (*) is accessed, this > maps the EPROM into $C000 to $FFFF.
Ah well, so my memory didn't fail me after all and my calculation was right. ;-) Cheers, Marcel
