Mail Archives: djgpp/1996/02/02/05:02:01
On 1 Feb 1996, Terence Abbott wrote:
> Here's another interesting note. I've got a real-time
> graphics program (~65k lines of source code) that I've
> compiled and executed with the following results:
> DJGPP 1.12m4 with GRX 1.03 : 18 iterations/sec.
> DJGPP 2.0beta4 with GRX 2.0: 8 iterations/sec.
> All on a 486/66.
That's odd. Isn't GCC 2.7.2 supposed to have more optimizations builtin?
I haven't got 2.0beta4; beta3 only has GCC 2.6.3. Does beta4 use the same
compiler? I also read DJ's post about beta5... *is* this the final beta?
does it have GCC 2.7.2? I'm working on a very computational-hungry image
processing application; it does very little I/O so switching to RM
shouldn't be too common. But I haven't compared any speed changes from
1.12m4 and 2.0beta3. Will they be _that_ drastic?
Also, in the GCC 2.7.2 tardist, I see an "ms-dos" directory in there,
plus some instructions for cross-compilation. Will this let me build GCC
2.7.2 on a Linux box with DJGPP output? of course, the libs which come
with DJGPP have to be used... I know there's something in the Massive FAQ
about this, but that was for an older version of GCC. It seems that in
the 2.7.2 distribution the FSF people already put in the hooks for people
using DJGPP. Is this right?
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