From: Craig Taylor (ctalkobt_at_gmail.com)
Date: 2008-02-09 04:50:32
On Feb 8, 2008 7:55 PM, Cameron Kaiser <firstname.lastname@example.org> wrote: > > MS DOS 1.25 was sent to Commodore for use with their B Series systems > with > > a 8088 co-processor board. It never made it into production. > > I have a very evil idea if anyone is interested. I've long been tempted to > write an 8088 VM emulation for the 6502, just for yuks, and boot some > simple > form of MS-DOS. > > Would there be appropriate glee if I hacked something together to allow > the > 128 to boot and run this DOS, to allow others to play with it? It would be > slow, but at 2MHz, possibly doable. I'm not interested in using the Z80 > for > this purpose as the performance (to do the abstraction) would likely be > worse. > What would you be abstracting? The z80 instruction set is, I believe, a superset of the 8080's. Any hardware abstraction, for compatibility could probably best be handled by setting up a task swap in the bios to the 6502 (eg: similair to what CP/M does on the 64 (I think the 128 does similair operations also)). Message was sent through the cbm-hackers mailing list
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