----- Original Message ----
>From: Sean Schouten dev.seantech@gmail.com


>Hi guys,

>What seems to be no more than perhaps a simple logical operation seems to
>defy my logic.

>Using the following code in a small loop, I don't seem to be getting the
>desired-output when monitoring the W-Register:

>[code]

>START

>       MOVLW       0xFF
>       MOVWF      TEMP_VAR


>MAIN

>        NOP
>        MOVF         TEMP_VAR, W
>        RRF            TEMP_VAR

>       GOTO         MAIN

>[/code]

[snip]
 
here is what I tested in the simulator
 
TEMP_VAR EQU 0x20  ;for this code must be gp reg in bank 0
START
        MOVLW       0xFF
        MOVWF      TEMP_VAR
        clrc        ;clear the carry or there will be not 0 bir rotating around

MAIN
        NOP    ;not needed
       MOVF         TEMP_VAR, W ;not needed
        RRF            TEMP_VAR  ;going to file as default
        GOTO         MAIN
 end

It works for me
Note the remarks at the equ (bank 0 gp reg= 0x20 to 0x7F)
the line movf temp_var,w does nothing.
 
Peter van Hoof
 
 
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