Hi,

I will mark below the errors and a suggestion for the correction.

Regards,
Imre

On Mon, 11 Oct 1999, Fansler, David wrote:

> I sent this plea for help to Tech-Tools on Oct. 7, 1999 - but have not heard
> back from them.  Anyone (left) on the pic list got any ideas?  I am using
> ver 4.02 of their TDE and their CVASM16
>
> ____________________________________________________________________________
> ________
> I am in the process of writing my first true PIC assembler program, and hate
> to bother you but I seem to have a problem.  The code so far is:
>
> device  pic16c74A,xt_osc,wdt_off,protect_off
>         org 00
>         goto Start
>         org 05h
> Start
>                 ;* Set Up Ports
>                 bcf STATUS, RP0         ;set to bank 0
;Instead:
                  bcf RP0
>                 bcf STATUS, RP1         ;
                  bcf RP1
>                 clrf PORTA                      ;clear all ouput latches
>                 clrf PORTB                      ;clear all output latches
>                 clrf PORTC                      ;clear all output latches
>                 clrf PORTD                      ;clear all output latches
>                 clrf PORTE                      ;clear all output latches
>                 bsf STATUS, STATUS.5    ;set to bank 1
; Uugh! It shows you misunterstand! Status.5 also contains the status
;address, such way it is completely confused. There are two good variants:
; either:
                  bsf  STATUS.5
;or (I prefer the former)
                  bsf  STATUS,5

>                 movlw 00000111b         ;data to set PA0-PA2 as inputs
>                 movwf TRISA                     ;set up port A
>                 movlw 11111100b         ;data to set PB0-PB1 to inputs
>                 movwf TRISB                     ;set up Port B
>                 movlw 10010111b         ;data to set PC0-PC2, PC5, PC7 to
> inputs
>                 movwf TRISC                     ;set up Port C
>                 movlw   11111111b               ;data to set PD0-PD7 to
> inputs
>                 movwf TRISD                     ;set up Port D
>                 movlw 00000000b         ;data to set PE0-PE2 as outputs
>                 movwf TRISE                     ;set up Port E
>                 end
>
> Actually there are comments before the code and a bunch of retlw between the
> movwf TRISE and the end statement.  The code built cleanly before adding the
> code to set up the ports.  The problem is that the assembler is not
> recognizing the RP0 and RP1 symbols.  I tried a couple of others and they
> failed also.  The error messages are:
>
> ERROR TSAIL.SRC 188 : bit number must bee from 0 to 7
> ERROR TSAIL.SRC 189 : bit number must bee from 0 to 7
> ERROR TSAIL.SRC 195 : bit number must bee from 0 to 7
>
> Where   "bcf STATUS, RP0                ;set to bank 0 " is line 188
>
> I did an assembly with the /D option and the symbol table listed :
> STATUS=0003, RP0=5003 & RP1=6003  so the symbols seem to be there, but
> contain more bits than needed.  The listing notes that subsets of a label
> include the primary label value.  So where RP0 is bit 5 of the STATUS
> register, it has a value of 5003.
>
> Any help would be appreciated.
>
> David V. Fansler
> Network Administrator
> TriPath Imaging, Inc. (Formerly AutoCyte, Inc)
> 336-222-9707 Ext. 261
> dfansler@autocyte.com <mailto:dfansler@autocyte.com>
> Now Showing! www.mindspring.com/~dfansler
> <http://www.mindspring.com/~dfansler>   Updated September 23, 1999
>
>