Re: Why can't I hook INT 21h???

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#876

From: Ross Ridge
Date: Tue, 25 Aug 1992 19:01

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beaurega@ireq.hydro.qc.ca (Denis Beauregard) writes:
>How could you write a self-moving program in C?  Because to be under 300
>bytes, you have to start at 0x5C in the PSP

You're forgetting about the only really decent "feature" of 8086's
segments, that's terribly easy to relocate code that doesn't make any 
absolute segment references.  So it's not too hard to write a C
programme that can relocate part of itself to PSP:0x60 (aka PSP+6:0).

							Ross Ridge

-- 
Ross Ridge - The Great HTMU					     l/	 //
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Path: arc1-ca.pugleaf.net!sparky!uunet!utcsri!torsqnt!geac!alias!imax!beltrix!zooid!ross
From: Ross Ridge <ross@zooid.guild.org>
Newsgroups: comp.os.msdos.programmer
Subject: Re: Why can't I hook INT 21h???
Message-ID: <1992Aug25.190135.25557@zooid.guild.org>
Date: Tue, 25 Aug 1992 19:01:35 GMT
References: <BtCwo7.C1o.2@cs.cmu.edu> <rdippold.714442087@cancun> <BtHnyM.5o7@ireq.hydro.qc.ca>
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