piclist 2005\08\15\223313a >
Thread: I say it is spinach and to hell with it!
www.piclist.com/techref/io/serial/spis.htm?key=spi
picon face BY : John Nall email (remove spam text)



Maarten Hofman wrote:

>> Modern ANSI C might be device independent to a certain extent.
>However, the C language was never intended to be such.
>
Well, we will probably just have to agree to disagree about that.

>> In fact, it is
>a glorified version of assembly, originally written for a specific
>type of processor. It has clear shortcuts (++ for "increment register"
>for example) meant to map directly on certain assembly instructions.
>  
>
Irrelevant and immaterial.  The C language is and was defined by the
book "The C Programming Language" by Kernighan and Ritchie.  The only
concession made to architecture was to the size of the word.  Most
certainly I will agree that they developed the language on a machine
which had a specific architecture (actually, I believe they had several
machines, but the architectures were similar -- at any rate, all were
Von Neumann machines).  So what?

>> But even now there are various devices (I think most of the <18F
>PICmicro line falls into that category) that are not entirely suited
>for this purpose, and an implementation of ANSI C on these devices,
>though possible, would be so costly that an application written in
>that language would not run very well on them. A version of C
>specifically designed for such devices might be more suited, and maybe
>a language unlike C might be even more so.
>  
>
You are agreeing with Olin, and I agree with Olin also.  So we all come
to the same point, do we not??  :-)

John

<43015059.5040602@gmail.com> 7bit

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