Newsgroups: comp.os.msdos.djgpp,rec.games.programmer Date: Thu, 15 May 1997 16:34:18 -0700 From: gau Reply-To: gau Subject: Re: Allegro In-Reply-To: <3373D6A4.218A@voyageur.ca> Message-ID: References: <3373D6A4 DOT 218A AT voyageur DOT ca> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII NNTP-Posting-Host: shell.pgonline.com Lines: 36 To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Precedence: bulk On Fri, 9 May 1997, J. Ellis wrote: > I just set up Allegro on my system, and now I have a question: Can I go > ahead and delete the directory (and files) that I unzipped allegro into? > The liballeg.a file was copied into my DJGPP dir, but does the lib > recquire any files from the allegro dir (you can tell I'm a newbie;-)? > Also, I'm starting to get sort of confused about this 32-bit stuff. I > read that DJGPP produced great 32-bit executables, but it sucks with > 16-bit exe's. I thought that DJGPP could ONLY produce 32-bit code!! > Was I misinformed? Also, when everyone says that DJGPP's 32-bit exe's > are great, does that mean just great in 32-bit OS's (unix, winNT, etc.)? > Or are they also very fast under DOS with CWSDPMI?? The reason I ask is > this: I own Turbo C++ v3.0, and unless DJGPP is quite a bit faster Most people don't look past their pocketbook when considering DJGPP, unless their name is Bill Gates since commercial compilers tend to be e-x-p-e-n-s-i-v-e. Anyways 32 bit codes runs a lot better no matter what OS you're running under. What slows a 32-bit application down in DOS is if it needs to use a lot of 16-bit routines in the BIOS and DOS or within TSRs loaded before your code got control. However when dealing with graphics and whatnot (ie: using the Allegro library), much less is drawn from BIOS and DOS, except to do file handling. The point, it's very fast under 32-bit. In addition 32-bit code can take full advantage of the recent linear buffer technology in newer video cards. Meaning no more slow bankswitches to draw that 1280x1024 screen in 24-bit truecolor on a 4 megabyte video card. There are definite spped advantages to using 32-bit regardless of the operating system used. ============================================================================== Gau of the Veldt "Draped in monster hides, eyes shining with intelligence. A youth surviving against all odds..." ===== Email: gau AT netbistro DOT com ===== WWW: http://www.netbistro.com/~gau/ =====