Yes I know this looks clumsy. This is a cut and paste from a trace using an
ICE with a PCM16XKO module for a PIC16F876

(Line 5 does a rotate left f, and active is a 01)
rlf        active,f
(line  6 calls a function that uses active. which is now 03)

1    042B  0AB2                                              incf
       ---  --  ---      --                              00000011 000CD7ED2C
2    042C  0BB2                                             decfsz 0x32
p_data4     01      p_data4 02   0000011 000CD7ED2D
3    042D  2C33   goto   train_not_zero
p_data4     02      p_data4 01   0000011 000CD7ED2E
4    042E  2C2F   (Forced
     ---  --  ---      --                              0000011 000CD7ED2F
5    0433  0DB4    train_not_zero                 rlf
        ---  --  ---  --                                  00000011
000CD7ED30
6    0434  23FA    call   set_list
ACTIVE     01      ACTIVE 03   00000011 000CD7ED31
7    0435  245A    (Forced
     ---  --  ---  --                                 00000011 000CD7ED32
8    03FA  3004    set_list                             movlw
     ---  --  ---  --                                00000011 000CD7ED33
9    03FB  00AE                                            movwf
      ---  --   W   04  00000011 000CD7ED34
10  03FC  3029                                             movlw  0x29
p_count     05      p_count   04  00000011 000CD7ED35


Later I do the exact same rotate left and it changes to 02 which is what it
is should be.

any ideas?

Gordon Varney