Em 30/9/2010 05:08, David Duffy (AVD) escreveu:
> Philippe Paternotte wrote:
>> Isaac Marino Bavaresco wrote:
>>  =20
>>> Which PIC family? (12-bit, 14-bit, 14-bit enhanced, 16-bit, 16-bit
>>> extended, 24- or 32-bit instructions)
>>>
>>> This code should work for the 5 first families in the list:
>>>
>>>     decf    Var+0,f
>>>     btfss    STATUS,C
>>>     decf    Var+1,f
>>>     btfss    STATUS,C
>>>     decf    Var+2,f
>>>
>>>     movf    Var+0,w
>>>     iorwf    Var+1,w
>>>     iorwf    Var+2,w
>>>     btfsc    STATUS,Z
>>>     goto     IsZero
>>>
>>> Of course there are other options, some more efficient (specially for
>>> the 16-bit instructions family), but this code should work for most
>>> families.
>>>
>>> Best regards,
>>>
>>> Isaac
>>>
>>>    =20
>> Isaac, DECF sets carry/borrow in PIC18 only so that code works only for
>> PIC18.
>>
>>
>> -----
>> Best regards,
>>
>> Philippe.
>>
>> http://www.pmpcomp.fr Pic Micro Pascal for all!=20
>>  =20
> Correct, DECF only affects Z, not C.
> David...

Sorry, too much time using only PIC18...


__________________________________________________
Fale com seus amigos  de gra=E7a com o novo Yahoo! Messenger=20
http://br.messenger.yahoo.com/=20
--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.