[Simh] C64 and C128

[Bill Cunningham]

I remember those floppy drives where big and heavy. I never had cp/m or a c128. I am reading that an 8502 and Z80A (which I can't find anything on) was inside. The Z80A was about 4 MHz. The Z80A word size I do not know. It was of course an 8 bit with a 16 bit address bus I believe. Now which is "memory word" size?

  ----- Original Message ----- 
  From: Kevin Handy 
  To: Bill Cunningham 
  Cc: simh at trailing-edge.com 
  Sent: Tuesday, June 30, 2015 7:46 PM
  Subject: Re: [Simh] C64 and C128


  The C64 did not run cp/m out of the box, because it did not have any kind of Intel 8080 based processor. You could buy a cartridge (iirc) that would allow you to run cp/m, but it was basically bolting a cp/m machine onto the side of the C64. 


  The C128 had both the C64 processor, and a Z80 processor built in, and it could run cp/m. The floppy drive speed was really lousy though (300 baud serial bus iirc).



  On Tue, Jun 30, 2015 at 5:21 PM, Bill Cunningham <billcun at suddenlink.net> wrote:

        Did the C64 not run CP/M? I know the 128 did. It had a 8502 processor and Z80A processor I believe. One was for CP/M. What good is a commodore machine without CP/M ;)

    Bill


    _______________________________________________
    Simh mailing list
    Simh at trailing-edge.com
    http://mailman.trailing-edge.com/mailman/listinfo/simh


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.trailing-edge.com/pipermail/simh/attachments/20150630/9c7bd262/attachment.html>