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From: phils@tekigm.UUCP (Phil Staub)
Newsgroups: net.micro.amiga
Subject: Re: C compiler comparison
Message-ID: <958@tekigm.UUCP>
Date: Mon, 6-Oct-86 12:24:12 EDT
Article-I.D.: tekigm.958
Posted: Mon Oct  6 12:24:12 1986
Date-Received: Wed, 8-Oct-86 01:00:45 EDT
References: <8610021606.AA18976@cory.Berkeley.EDU>
Reply-To: phils@tekigm.UUCP (Phil Staub)
Organization: Tektronix, Inc., Beaverton, OR.
Lines: 51

In article <8610021606.AA18976@cory.Berkeley.EDU> dillon@CORY.BERKELEY.EDU (Matt Dillon) writes:
>
>	Manx code is smaller due to the fact that it defaults to 16-bit ints.
>If you use it in a comparable mode (+l option for 32-bit ints), I think
>Lattice wins.  This, by the way, is why Manx code is usually a *little*
>faster.  Lattice bungled their library for 3.03 and below, and thus a lot
>is generally included if you reference even supposedly short routines.
>
>	However, if you do not use Lattice's current library (for instance, 
>my SHELL and the utilities I posted use my own library), the difference in
>executable sizes is negligible.
>
>	Lattice's 3.04 library is supposedly much improved and no longer
>causes these huge executables.
>

I use the Manx compiler with the +l option almost exclusively, and typically
find that (at least on some of the code supplied on the Fish disks) I still
only wind up with about half the amount of code as the Lattice version. I
suspect this is due to the library problems you mentioned. I normally find
only minimal code size increase from 16 to 32 bit ints.

>----
>	What I don't like about Manx is the fact that they decided not to
>use the Amiga's standard for object modules, libraries, etc... which causes
>headaches.  the new linker, BLINK, is quite a bit faster than Manx's
>linker anyway.
>

I agree it would have been nice if the Manx format would have been
compatible, but that would have made things too easy!  8-)

>	Talking to Jay Denebeim (sysop for the BBS w/carries Blink), Lattice's
>3.04 compiler will have PC relative addressing modes for calls and jumps, and
>relative addressing through an address register for static/global variables.
>He pointed out that this would mean that I could make my shell and any other
>program re-entrant without any problem.  This will also, incidently, probably
>make the code more compact than Manx as Lattice already has some great
>optimization hacks in the compiler.
>

Manx 3.20a already uses these optimizations if small code and data models
are used (the default).

Phil Staub
Tektronix, Inc.
ISI Engineering
P.O. Box 3500
Vancouver, Washington 98668
C1-904, (206) 253-5634
..tektronix!tekigm!phils