aliamus@hpcc01.HP.COM (Steve Aliamus) (10/04/90)
Here is the one I use: C:\> debug -a XXXX:0100 jmp ffff:0000 XXXX:0105 -rcx CX 0000 :5 -n reboot.com -w Writing 0005 bytes -q That's it. I believe this code generates a "cold" reboot.
stever@Octopus.COM (Steve Resnick ) (10/04/90)
In article <68@beep.UUCP> kris@beep.UUCP (Port'naybl) writes: >[Auctioneers talk at 9600 baud.] > > We've been having some problems here at "beep" recently, mostly users >that aren't "root" or "news" not having their articles leaving this site. >Please bear with me if this is a repeat... > > A few weeks ago, someone posted a 5 byte program that could be entered >into memory with the debugger, and then be saved as a runnable program. >Could someone please send me a copy? > Use this: DEBUG <enter> a<enter> jmp FFFF:0 <enter> <enter> r cx<enter> 5 <enter> nboot.com<enter> w<enter> q<enter> That will do a cold re boot. To do a warm boot, you need to change the word at 0:472H to 1234H before doing the jmp to ffff:0 Cheers! Steve -- ---------------------------------------------------------------------------- steve.resnick@f105.n143.z1.FIDONET.ORG - or - apple!camphq!105!steve.resnick Flames, grammar errors, spelling errrors >/dev/nul ----------------------------------------------------------------------------
rcollins@altos86.Altos.COM (Robert Collins) (10/04/90)
WARMBOOT: xor ax,ax mov ds,ax mov ds:[472],1234h jmp f000:fff0 COLDBOOT: xor ax,ax mov ds,ax mov ds:[472],0 jmp f000:fff0 -- "Worship the Lord your God, and serve him only." Mat. 4:10 Robert Collins UUCP: ...!sun!altos86!rcollins HOME: (408) 225-8002 WORK: (408) 432-6200 x4356