> 3.5 inch disks are logically identical to 5.25 inch > disks. The interface is the same and so is the formatting > of the disk. 8 inch disks are different in those both > respects.
The very first 3.5 inch disks drives where made by Sony. They where the eight inch format on 3.5" disk. Held 160K as I recall. My old employer bought out a division of RCA that used many of these. > >Correct. I have no clue what VARSAdos is related to - some CP/M or early > > DOS? I only know that the volume name of the disk can only be 4 > > characters, and that's stored in the beginning of very first sector of > > the disk (that is, the first four bytes of my image file). > > Doesn't sound like an CPM-DOS based filesystem (like MS-DOS) but a kind of > Motorola format. It was a 68000 based system. Try searching for "DACK Grounded". > BTW. I never wrote a 68000 emulator, because it has a very > chaotical instruction set Hun? Chaotic compared to what? I've always found the 68anything parts family easier to program than anything else, nice orthogonal instruction sets. The new MicroChip dsPIC parts are similar to the 68000 in style. -- http://www.softwaresafety.net/ http://www.unusualresearch.com/ http://www.bpaddock.com/ -- Author: Bob Paddock INET: [EMAIL PROTECTED] Fat City Hosting, San Diego, California -- http://www.fatcity.com --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
