Joe Lerch wrote in a message to All:

 JL> I have read that the following is not supposed to lock up an 
 JL> OS/2 system. However, I have tried it in both window and full 
 JL> screen dos sessions and both times it locks up our system that 
 JL> we have to re-boot to get it back. Could some one explain to me 
 JL> why this locking up our system...

Yup. The motherboard in the computer that you are "testing" lacks
a hardware feature called a "watchdog timer" (there may be a
better technical name for it).

 JL>  and if there is a easy way to fix it.

Yup. Replace the motherboard with something a bit better in quality...

 JL> debug
 JL> -a
 JL> xxxx:0100 cli
 JL> xxxx:0101 jmp 100
 JL> xxxx:0103 
 JL> -g 

By the way, this is a GREAT little bit of code to test prospective
motherboards. Also, this will crash (lockup) WINNT, WIN95 DOS/WINDOWS and
DOS if the motherboard is of inferior quality.

I have two computers, one locks up, the other doesn't, both running os/2.

 JL> Thanks in advance,

Pleasure...

 JL> Joe

Jerry McBride

--- timEd/2 1.01+