TIP: Click on subject to list as thread! ANSI
echo: 80xxx
to: MICHAEL MUELLER
from: AUKE REITSMA
date: 1997-05-28 22:35:00
subject: Bosskey.Asm - sysreq.

Hi Michael,
On 26 May 97, 00:00, you wrote to Joe Koss
 JK>> In a case such as:
 JK>>
 JK>> mov ss, ds:[foo]
 JK>> mov sp, ds:[bar]
 JK>>
 JK>> The "stack" is invalid inbetwen the two instructions. Any
 JK>> attempts to use it will result in bad ju-ju.
 MM> But there will be all interrupts disabled beetween does commands.
 MM> It is a  feuture of the 80x86-family chips.
I may be wrong, but that was not true for the earlier 80x86's.
I'd say that the habit of having the interrupts disabled even with 
consecutive ss+sp operations just did not disppear ...
Greetings from
 _____
 /_|__|  Auke Reitsma, Delft, The Netherlands.
/  | \  --------------------------------------
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