At 6:16 PM +0100 11-21-03, Jan-Erik Soderholm XA (TN/PAC) wrote:
>Did they ?
>I just remember the CLRF, and that isn't non-standard...
>
>>  and my initial conversions don't give me correct answers.
>
>Did you correct the code ? The f/w parameters ?



I would say the "CLRF   register, w" is non standard because the
Microchip data sheets show no options on CLRF. The square root code
in the archive uses both:

      CLRF    register, f
      CLRF    register, w

As I said, I think I have converted these correctly to plain CLRF and
CLRF with an extra CLRW.

I was thrown by the use of "btfsc   ALUSTA,c" until I learned that
the ALUSTA register is used in 17 family parts. I substituted the
Parallax "snc" (skip no carry). Just to be cautious, I also tried
"skip if carry".

After my conversions of the posted routines to compile under the
Tech-Tools assembler still failed to give me the square root of 25, I
was offered an alternate routine by Scott Datallo. But his has a new
assortment opcodes not listed in the Microchip data sheets. These
include "setff" and "rcall".

I've always used the Parallax extensions, but I had no idea there
were so many other variations.

--

Bryan Mumford
Santa Barbara, California
http://www.bmumford.com

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