I just tried Michael Rigby-Jones' code and confirmed his results - 10
instructions. (V7.85 with a code generator only a couple of weeks old). I
know I have seen the four instruction sequence in the past, but the test
code certainly doesn't generate it.

Regards,

Jim Ham

At 08:55 PM 3/22/2000 +1000, you wrote:
>On Wed, Mar 22, 2000 at 09:51:16AM -0000, Michael Rigby-Jones wrote:
>> It certainly would make a neat macro if it worked.  However, I've just
tried
>> it on V7.85, compiling for a 16F877 with maximum optimisation and it got
>> it's knickers in a twist:
>
>You didn't show your C code, but here's what I tried:
>
>;x.c: 7: count = (CCPR1H << 8) + CCPR1L;
>        movf    22,w    ;volatile
>        movwf   _count+1
>        movf    21,w    ;volatile
>        movwf   _count
>
>Looks fine to me.
>
>
Jim Ham, Porcine Associates
(650)326-2669 fax(650)326-1071
"http://www.porcine.com"