David:

CVASM16 uses true BIT VARIABLES.  MPASM uses REG#,BIT# notation.  You are
mixing the two.

Under CVASM16, RP0 is a completly specified variable reference......no need
to tell us which bit of which register.

Bottom line:
  replace  bcf STATUS, RP0      with    bcf  RP0

and so on....

Sorry no body back to you by end of business Friday; we usually try to
answer email no later than the next day.


At 07:56 AM 10/11/99 , you 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
>               bcf STATUS, 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
>               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
>
Jerry Merrill

jerrym@tech-tools.com
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