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From: | Damian Yerrick <Bullcr_pd_yerrick AT hotmail DOT comRemoveBullcr_p> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: Watcom vs djgpp |
Organization: | Pin Eight Software http://pineight.8m.com/ |
Message-ID: | <bjsgnsceubs20n5d6b3rl32hvo4ebea0dj@4ax.com> |
References: | <5337D585DDD3D111996B0008C728F07DA42A4B AT pa00fsr01 DOT pa DOT atitech DOT com> <200007210832 DOT KAA07828 AT mailgw3 DOT netvision DOT net DOT il> |
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NNTP-Posting-Date: | Fri, 21 Jul 2000 16:00:45 GMT |
Distribution: | world |
Date: | Fri, 21 Jul 2000 16:00:45 GMT |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
On Fri, 21 Jul 2000 11:32:16 +0200, "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il> wrote: >> From: Nick DiToro <NDiToro AT ati DOT com> >> Date: Thu, 20 Jul 2000 20:10:30 -0400 >> >> 1) How tough is it to port Watcom code? > >It depends. Some factors that might matter: > > - does the source use inline assembly? Don't the latest GCC and Binutils support Intel syntax? > - how much of the source accesses memory-mapped hardware by using an > absolute address, like this: > > char *video = (char *)0xa00000; In that case, look at the Allegro sources to see an example of how to do it right. > - how much of the code calls real-mode interrupts through int86 or > int386 and their ilk, and expects them to transparently support > buffers in protected-mode memory? __dpmi_int() > - does the code install interrupt handlers? Again, the Allegro sources have useful examples. -- Damian Yerrick "I refuse to listen to those who refuse to listen to reason." See the whole sig: http://www.rose-hulman.edu/~yerricde/sig.html This is McAfee VirusScan. Add these two lines to your signature to prevent the spread of signature viruses. http://www.mcafee.com/
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