[comp.lang.pascal] Hooking DOS interrupt 21 in Turbo Pascal 5.5

pnwillia@slate.mines.colorado.edu (WILLIAMS PETER NEIL) (05/16/91)

Does anyone have a routine that succesfully hooks interrupt 21 in Turbo Pascal
5.5?  I would like to be able to do stuff before and after the original inter-
rupt handler is called.  If anyone has any information, please e-mail it to me
at pnwillia@mines.bitnet, or pnwillia@slate.mines.colorado.edu.  If interested
in this information, send a message stating so, and I will e-mail all useful
info to you.
					Thank you,
					Peter Williams
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