mark@sdencore.UUCP (Mark DiVecchio) (05/19/85)
I have worked out a technique which lets me make calls to DOS interrupt 21 on the IBM PC from within Interrupt Handlers. I don't know if the routine is foolproof but it seems to work. If anyone would like a copy of the assembly language contact me. If I get enough requests, I will post it here otherwise I will just mail it to the requesters. The technique, by the way, was not invented by me but I pulled together 3 or 4 different attempts to make one that seems to work consistently. Of course, without knowing what Microsoft did inside of PC(MS)-DOS, we'll never know what works correctly all of the time. -- Mark C. DiVecchio K3FWT [ihnp4|akgua|decvax|dcdwest|ucbvax]sdcsvax!sdencore!mark
mark@sdencore.UUCP (Mark DiVecchio) (06/03/85)
------- My recent posting of LPTx, a PC-DOS program which showed examples of how to call DOS from within an interrupt handler failed to mention that you must run exe2bin on the .exe file to make it a .com file before you try to load it. -- Mark C. DiVecchio K3FWT [ihnp4|akgua|decvax|dcdwest|ucbvax]sdcsvax!sdencore!mark