On Thu, 6 Feb 2003 09:23:44 -0800, you wrote:

>Andy,
>
>I disagree you use C because you are good at C.
>
>Andre
>
>
>
>-----Original Message-----
>
>
>For real optimization use C, for speed of development use C.
>
>I think Walter Banks (of BYTECRAFT fame) pretty clearly summed up why C
>compilers can out-optimize a lot of assembly.

This may be true of an 'ideal' compiler, but my experience of the Hitech =
Pic16 C is that although
very reliable, it is not great at optimising for code space, making poor =
use of the possibilities of
skip instructions. Integration with MPLAB is also not great for =
debugging.

C also has some inherent inefficiencies with RAM, although the compiler =
will usually compensate by
cleverer overlaying of locals.=20

I use assembly and C, depending on the nature of the project. A lot of =
bit-twiddly hardware bashing
type stuff is often easier, quicker and clearer in assembly. C easily =
wins when there's lots of
maths or complex control flows. A mixture is often the optimal solution.=20


>Andy
>
>At 01:38 PM 1/6/03 +1100, you wrote:
>>The PIC maths libraries are not difficult to incorporate and use - for
>real
>>optomization - use assembly, for speed of development, use C, but
>assembly
>>is still the choice.
>>Just my opinion ...
>>
>>-----Original Message-----
>>From: pic microcontroller discussion list
>>+AFs-mailto:PICLIST+AEA-MITVMA.MIT.EDU+AF0-On Behalf Of Christopher
>Gill
>>Sent: Thursday, 6 February 2003 3:54 am
>>To: PICLIST+AEA-MITVMA.MIT.EDU
>>Subject: +AFs-PIC+AF0-: C Language V's Assembler
>>
>>
>>Hi there
>>I have been using PICs since last June programming in assembler, I am
>now
>>looking a using the C language. What are the advantages/disadvantages
>of C
>>over the assembly language. Am I right in thinking that there are built
>in
>>'modules' for division, multiplication etc.  Are there any good online
>>tutorials on programming in C for complete beginers?
>>
>>Cheers
>>chris
>>
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