what's better?
LOADALL or v86? loadall takes 105 clock ticks.
Thank you,
LOADALL vs. v86
-
Pype.Clicker
- Member
- Posts: 5964
- Joined: Wed Oct 18, 2006 2:31 am
- Location: In a galaxy, far, far away
- Contact:
Re:LOADALL vs. v86
a.f.a.i.k. the loadall instruction (which is undocumented) was only available on the 80286 and maybe on some 80386...
http://x86.ddj.com/articles/loadall/tspec_a3_doc.htm
On hardware from 486, pentium, etc. it seems (according to the above article) that the LOADALL instruction is emulated by the bios, so i don't think it would be easier to reuse as you'll probably have to rewrite that emulator as well once you've re-programmed exceptions table (IDT)
http://x86.ddj.com/articles/loadall/tspec_a3_doc.htm
On hardware from 486, pentium, etc. it seems (according to the above article) that the LOADALL instruction is emulated by the bios, so i don't think it would be easier to reuse as you'll probably have to rewrite that emulator as well once you've re-programmed exceptions table (IDT)