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- Path: sparky!uunet!cs.utexas.edu!ut-emx!ccwf.cc.utexas.edu
- From: baylor@ccwf.cc.utexas.edu (Baylor)
- Newsgroups: comp.lang.pascal
- Subject: What can i do in a TSR?
- Summary: yet another FAQ TSR question
- Keywords: TSR
- Message-ID: <76468@ut-emx.uucp>
- Date: 23 Jul 92 22:19:26 GMT
- Sender: news@ut-emx.uucp
- Organization: The University of Texas at Austin, Austin TX
- Lines: 36
-
-
- Someone wants me to write a TSR for him and i need to do
- a little checking.
- What can i NOT do in a TSR. I actually understand the theory
- of tsrs ok and believe i can write one easily enough, but i am
- quite aware i can't use dos. I think i can use int 10 to write
- to the screen (writeln is bad in a tsr isn't it?).
- What this person needs is something that checks a port
- (he does alot of networking/modem stuff) and have it written
- to the hard drive. Can i do background disk-writes in a TSR
- (oh yeah, i constantly poll the port to see if i need to write)?
- I'm not sure if writing to the hard drive uses int $13 or dos
- or both (or neither :)? ).
- Also, i've downloaded several (4? 5?) tsr programs from
- wuarchive but haven't extensively tested them. Has anyone used
- any of those programs? Any problems? I have sometimes experienced
- problems with hot keys accidenta;;y starting my screen saver rather
- than the program but my tsr laden environment (through norton no less)
- is probably less than great.
- And if anyone wonders, i've done this before some time ago
- and have books around here (on just about anything) that i plan to
- dive into shortly, but i wanted the initial observations from others
- on whether or not i want to disk-writes in a tsr or not ( i have
- never done modem programming before - this seems all ibm to ibm
- modem netting).
- Any helpful hints appreciatted.
-
- Oh yes, i heard turbo's keep procedure clobbers the dos
- stack/frame/something. That true? I can write (have written) this
- in assembler if turbo's functions have bugs.
-
- --
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- Baylor Wetzel baylor@cc.utexas.edu Hang Tyson
- Free Leonard Peltier
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