🚀 go-pugleaf

In article <frank.714406708@fam168>, Frank Hoffmann <fh.pad@sni.de> writes:
|> rmathews@zeus.calpoly.edu (Bob Mathews) writes:
|> 
|> >Charlie_Hutchins@mindlink.bc.ca (Charlie Hutchins) writes:
|> >>Okay, maybe someone could help me here.  I am trying to write a TSR
|> >>that hooks interrupt 21h but whenever I try and hook that vector I
|> >>get an invalid command.com error and my system crashes.  I am using
|> >>TC++ 3.0 ....
|> >[code deleted]
|> 
|> >The turbo c interrupt function automatically saves all cpu registers.
|> >The return values from DOS are getting clobbered.  Code like this
|> >absolutely needs to be written in assembly.  You need to have complete
|> >control of what's happening to the machine.
|> 
|> >swehtam bob
|> 
|> Same does MSC 5/6. You must write in ASM as well or add additional ASM-Code
|> to restore the regs and the stack-ptr.

IMUST disagree here.  I have written numerous similar programs in C and hooking 
interrupts is just as reliable in C.  There is NOTHING you can't do in C that you CAN in assembley.

|> 
|> frank
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