Re: DRL updated!

Hi!

On Wed, 23 Oct 2002 13:58:53 +0400 (MSD), Arkady V.Belousov wrote:

> 1. INT instruction not allows an non-constant argument, so you can't call
> interrupt with variable number else than through manually prepared code
> (or else you should make 256 times of INT 0, INT 1, etc and then make
> jump by calculated offset).

Or simulate an INT with PUSHF/CALL (may not work if the V86 monitor needs
to trace this interrupt call).

> 2. Selfmodifying code is _not_ incompatible - at least, while you say about
> "real mode".

Self-modifying code may work perfectly in many situations, even allowing
you to reduce noticeably code size.
However (as _you_ know for sure, but I feel it should be stressed):
1. It is not re-entrant. Try to forget about it and find the source
   of all the strange errors that arise ;-)
2. It is not ROMmable.
3. Sometimes it's nice to have a piece of code than can execute in both
   real and 16-bit protected mode. It's hard with self-modifying.

Greetings,

Michal