Hallo, I forgot to implement one feature: copying/DMA-ing over the 64K border. I found a quick but maybe dirty solution. The original idea was using a 573 for A16..23. Instead one I'll use two. The idea is activating one 573 when MEMW = (L), the other when MEMW = (L). Quite simple. The "dirty" part is that I'm not familiar enough with any complex card or IC to know if I can expect trouble in some or another way (like IC's needing some setup time). The only idea I have for the moment is to delay these two signals and to OR these with the inverted CLK2. The result is fed to the appropiate lines. Any comment is welcome. Groetjes, Ruud http://Ruud.C64.org - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail firstname.lastname@example.org.
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