28 Mar
2008
28 Mar
'08
2:53 a.m.
Eric Smith wrote:
Suppose you're trying to market a PC clone. How
successful will you be
if some piece of popular software for the PC won't run on your clone,
because that software depends on direct calls into the ROM, or direct
access to tables in the ROM (e.g., the character generator)? Back in
those days, *lots* of software did wacky things like that.
Yes, but *why*? I am getting to be what I consider a pretty decent
assembler programmer, specifically on the 5150/5160, and I honestly
can't see *why* I would *ever* want to specifically jump directly into
the middle of the BIOS. I *call* BIOS routines, obviously, but what
possible benefit or purpose could there be to jumping directly into ROM?
--
Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/
Help our electronic games project: http://www.mobygames.com/
Or check out some trippy MindCandy at http://www.mindcandydvd.com/
A child borne of the home computer wars: http://trixter.wordpress.com/