[comp.sys.ibm.pc] Neat trick to reboot

alanm@cognos.UUCP (Alan Myrvold) (10/04/89)

This neat trick for rebooting a PC was brought to my attention:

$ echo ALT(205)CTRL(Y)> foo.com
$ foo

By ALT(205) I mean "hold down the ALT key while typing 205 on the
numeric keypad."

By CTRL(Y) I (obviously) mean "hold down the CTRL key and press y."

On the screen it will look (almost) like this :
$ echo =^Y> foo.com
except the = will be a bit longer than normal.

Hope this helps someone.

                                          - Alan

---
Alan Myrvold          3755 Riverside Dr.     uunet!mitel!sce!cognos!alanm
Cognos Incorporated   P.O. Box 9707          alanm@cognos.uucp
(613) 738-1440 x5530  Ottawa, Ontario       
                      CANADA  K1G 3Z4       

bill@hpcvlx.cv.hp.com (Bill Frolik) (10/07/89)

| $ echo ALT(205)CTRL(Y)> foo.com
| $ foo

Sure, this reboots all right, if you put a boot floppy in drive A:.
Don't count on it rebooting from your hard disk.  Int 19h all by itself
doesn't always cut it.  This method also doesn't clean up any BIOS
variables that DOS and/or any BIOS extension ROMs might have diddled with
during the previous reboot.  The surest way to reboot, I think, is still
to set 40:72 to 1234 (warmboot flag, causes some of the power-up
self-test code to be skipped) and do a far jump to FFFF:0000.
________________________________________

Bill Frolik	Hewlett-Packard Co.
hp-pcd!bill	Corvallis, Oregon