1.44M floppy on Color Computer (was Re: Ebay reaches new low)

From: Dwight Elvey <elvey_at_hal.com>
Date: Fri Nov 12 12:16:57 1999

Roger Merchberger <zmerch_at_30below.com> wrote:
> 512 byte MS-DOS sectors shouldn't be too hard to implement in software...
> if, of course, you had the nitty-gritties to programming the FDC (which the
> disk Basic unravelled would provide) and MS-DOS's track format layout...
> (anybody got that handy?)

 I have code and stuff I did for 360K DOS disk. It would need a little
modifications for the larger FAT used on the 1.44M's but the
basics are there. I didn't do subdirectories but they could be added
with a minimum of effort. The code is all done in Forth and
even then, a strange Forth called CMForth that was for the NC4000
chip. Still the flow is what one needs.
 It is on my web page at:


 scroll down and select:

Forth and DSP related files
  disk.txt DOS disk read write code
  disk.art Story goes with above
  floppy.txt Floppy interface ( 765 type, not 1793 )
  floppy.art Story goes with above

 I expect to be doing modifications to the code to read/write
to DOS disk in the near future because I want to read/write
1.44M disk in DOS file structures. I am already reading and writing
sectors on this disk, just not files yet.
 Let me know if you find it useful or if you have questions.
Received on Fri Nov 12 1999 - 12:16:57 GMT

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