8 May
2010
8 May
'10
7:01 p.m.
On 5/8/2010 8:58 PM, Ben wrote:
Argh! :-)
True, 32-bit ops in 16-bit real mode was a PITA. One of the reasons a
colleague of mine wrote his own DOS extender is because he could only
afford a 386sx-16 and was tired of 32-bit operations requiring a 0x66 or
0x67 prefix byte, which slowed things down as it was more data to
transfer across the 16-bit bus. In 32-bit protected mode, you don't
need the prefix bytes...
--
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/
But I reserve
the right to smack anyone with a large salmon caught
describing an 80386sx as a 16-bit processor.
With pre-fix bytes how long was a op-code again?
That makes it a **** x 8 bit computer.
:)
Ben.