>>>>> "DG" == Daniele Gratteri <email@example.com> writes: MV> 6264's are 8K Static RAM (SRAM) chips that are almost pin compa- MV> tible with 2364 ROM chips. This enables you to solder the 6264 on MV> top of the ROM chip (aka piggy-backing) and just rewire 6 pins, MV> instead of having to wire all 28. It's a quick and dirty solution, MV> but it works. DG> Just a question: with these chips piggy-backed on the ROMs, is DG> possible to use cartridges or will be some conflicts? It depends on the cartridge -- 8K carts only use block 5 ($a000- $bfff), but bigger ones can use block 1, 2 or 3. This RAM expansion will use blocks 1 and 2, but there's nothing that's keeping you from adding an enable/disable switch. Personally I'll probably have it selectable between block 1+2 or block 3+5 and write protected. -- ___ . . . . . + . . o _|___|_ + . + . + . . Per Olofsson, konstnär o-o . . . o + MagerValp@cling.gu.se - + + . http://www.cling.gu.se/~cl3polof/ - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail firstname.lastname@example.org.
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