the btfss Port_B,pulse_ip instruction takes 2 cycles if set and 1 if not
set. the processor replaces the goto statement with a NOP to create the
skip.

michael


-----Original Message-----
From: PHXSYS <PHXSYS@AOL.COM>
To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Date: Tuesday, January 13, 1998 9:29 AM
Subject: Re: HELP! R/C Servo Code problems-(Ken)


>Ken,
>Sorry, I accidently sent the previous message before it was finished. I am
a
>beginner and don't understand a portion of a timing loop in the sample code
>you sent me (which I greatly appreciate). I have been taught that all
commands
>execute in one instruction except for goto, call, return, which execute in
2,
>or a incfsz (or other command) which results in 0. I understood all of your
>timing loops except for one, which stated it was a 5us long timing loop.
>
>Time_ip
>          btfss    Port_B,pulse_ip      ;(1 instruction)
>          goto     end_ip                   ; only executed if 0
>          incfsz   ip_pulse,1              ;(1 instruction)
>          goto     Time_ip                  ;(2 instruction)
>           goto     max_pulse             ; only executed if 0
>
>It seems that the ip_pulse is incremented every 4us. What am I missing?
>
>
>Jon
>