Hallo allemaal, Sory for answering so late. For Andras, Sami amd the others: I did download the disks as well and they worked perfectly. But I also noticed this strange behaviour when resetting my C64. Turning the power off and then on again made the disks function again. BTW, the disks are almost the same; one just contains some more PRGs. My regualr C64 is a "Brotkasten" with ASSY NO 250425. (But writing this I start to think that I used the B-type; the one that did not use the 8701 clock-IC) > For the Commodore Z80 cartridge: didn't Ruud draw the schematics? Maybe > he knows what is wrong with the design. I made a SCH and it is on FUNET. But I have to mention that I have the distinct feeling that there is a error in it. The error is that I somehow mixed up DOT and CLOCK or at least some lines. You'll see that in my SCH DOT drives the enable-gate of the 373 and that does not look good to me. Unfortunally I have no idea where my cartridge is (yes, it is in my room buy in which of the four closets :( ). As I already mentiond it uses the DOT-clock. But I don't know how this signal behaves on a NTSC-machine. The cartridge had one big flaw IMHO: the IRQ- and NMI-line are NOT used. So it must have been a hell for a programmer to program things like reading the keyboard, taskswitching etc. Groetjes, Ruud - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail firstname.lastname@example.org.
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