Hi John,
excellent comparison write up! Thank you for sharing it :)

Pricing I have so far..
MPLAB C18       AUD $706
HiTech C        AUD $950
IAR EWPIC18 AUD $4760

I am porting code from a Renasas (Mitsubishi) M16C62 16 bit
processor (we are loosing some functions along the way, all in
the name of lower cost..). It is compiled using the Renasas C
compiler at present..

Reading the comparisons makes me a little concerned that it
wont be quite as easy as I hoped... I have used the IAR one
previously and apart from the cost I feel it would be an
easier path to take.

Can anyone using the IAR compiler comment on it Vs the others?
Is it really 4x better?

Regards,
Peter Mcalpine

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of piclist@XARGS.COM
Sent: Friday, 21 May 2004 5:01 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [PIC]: C-compiler PIC18F


On Fri, 21 May 2004, Peter Mcalpine wrote:

> I know of MPLAB C18 and Hi-Tech both similar sort of $.
> Are there other 'better' ones around?
>
> Would like it to be easy to use as I need to port C code
> from another micro

Since you're porting existing code, I'll assume you want an
ANSI-compliant compiler.  Other than the two you mention above, the
only other such compiler is from IAR.  The last time I checked, IAR
was considerably more money without having any obvious additional
benefits.

Which compiler will make your porting effort easier might depend on
the nature of the code you're porting.  If the code is recursive, note
that Hi-Tech doesn't support recursion.  If the code includes string
literals, note that C18 has a non-standard implementation.  C18 also
doesn't support integer promotions by default, which will break some
code.  You can enable them, but at a substantial price in code size.

I've been working with both compilers and have been documenting my
findings:

http://www.xargs.com/pic/picc18-vs-c18.html

--
John W. Temples, III

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