CP/M computer on Arduino Nano 3.0

petersieg:
Where is the source? :wink:
Would like to give it a try..
Very interesting to use a 64kb area on sd card to mimick ram memory.
I assume the 4 floppy images are dd-ed on 4 partitions of the sd card?

Please keep this code as a separate (version 1) project, before you introduce ps/2 kb und display.

thx,

Peter

  1. I will uploaded source in my GitHub repository - I believe, by the beginning of next week.
  2. I use 4 GB SDHC Card, so i trade free space for simplifying - i write one line cache at the beginning of each sector (64 bytes of 512 bytes) (cache has 8 lines of 64 bytes) -> 65536/64 sectors to all RAM.
  3. No, i dont use partitions on SD Card - raw read/write only.