If I may add something to the discussion: > You seem to think that Jeri's board and the SCPU will work > together. I've never seen that stated, and some of the > things I've been hearing make me think that they won't work > together. Let's assume that Jeri's board replaces the 6510, seems logical. Using a 6502 means that all other RAM then the original 64 KB is accessed by bankswitching. Inserting the SCPU disables the original 6510. Therefor Jeri's 6502 or 65816 will be disabled as well. So IMHO the board and SCPU work well together on this point. Accessing the extra RAM on the board may be another matter. I'm not familiar enough with the SCPU so some things are gueswork and I hope someone correts me if I'm wrong. The SCPU has its own RAM. You can tell SCPU what area of the RAM has to be copied to the original C64 (and when ??). AFAIK I/O is written and read always. Assuming that Jeri uses some I/O to point to the right page then there is no problem here. But what area does she use as swap page? If she uses one (or more pages) inside the I/O area, again no problem. But if she uses, let's say $C000/CFFF, I have no idea what happens. Another thing: AFAIK the SCPU can only communicate with Jeri's board at 1 MHZ. Groetjes, Ruud http://Ruud.C64.org/ > > So, I guess we'll have to wait and see. > -- > Robin Harbron email@example.com > http://www.tbaytel.net/macbeth > http://www.psw.nu/ > - > This message was sent through the cbm-hackers mailing list. > To unsubscribe: echo unsubscribe | mail firstname.lastname@example.org. - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
Archive generated by hypermail 2.1.1.