Olin Lathrop wrote:
> mcd@is-sixsigma.com wrote:
>   
>> Simple, really.  If you have 16F84 code and you aren't terribly
>> familiar with PICs it can be monstrously difficult to port.
>>     
>
> Only if you consider three instructions to disable the analog inputs
> "difficult".
>
>   
I agree, simple to port if you read the datasheet.
>> Most of
>> the 84 code out there is absolute and horribly written.
>>     
some is OK. But that is irrelevant
> Right, so read the datasheet and write your own.  There is little to be
> learned by trying to make someone else's bugware run.  With the simulator to
> help, it's really not hard to get a basic pin toggle loop going.
>   
When I 1st started using PIC in 2003 I had no difficulty in getting '84 
assembler source code to  run  on  '877.  Later  I  had  no difficulty 
porting stuff to '628

I don't bother with assembler or C now on PIC, using JAL v2 on 16F628,  
16F876, 16F877A,  18F2550, 18F4550,  18FxxJxx (44pin &  60pin  tqfp 
3.3v).  I've found porting '84 ASM, C (even PC C for Linux), VB6 test 
code from windows to JAL no problem.

You learn lots porting. If you are simply going to build a "one off "  
100% clone of existing design and learn nothing, then maybe use 16F84.
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