I ve been trying to solve this for like a month. Finally i got here.I am trying to create new hex file from below code but PIC16 Simulator IDE has given these errors.I've looked everywhere couldn't find anything. Pleas help me to solve this problem . Thank you.
Attachment 7788Code:;--------
; mclock8.asm
; "The Propeller" mechanically scanned LED clock
; some changes since last version -
; modified table etc for compatiblility with 8th LED
; watchdog timer used to ensure startup
; Bob Blick February 12, 1997
; Licensed under the terms of the GNU General Public License, www.gnu.org
; No warranties expredded or implied
; Bob Blick February 18, 2002
;--------
list p=16f84a
radix hex
#include <"p1f84a.inc">
;--------
; remember to set blast-time options: OSC=regular xtal, WDT=ON
; timings all based on 4 MHz crystal
; are these equates already in the include file? someday I'll look.
" w equ 0 ;"
" f equ 1 ;"
; Start of available RAM.
cblock
safe_w ;not really temp, used by interrupt svc
safe_s ;not really temp, used by interrupt svc
period_count ;incremented each interrupt
period_dup ;copy of period_count safe from interrupt
period_calc ;stable period after hysteresis calc.
flags ;b2=int b1=minute b4=edge
dot_index ;which column is being displayed
digit_index ;which digit is being displayed
hours ;in display format, not hex(01-12)
minutes ;00 to 59
bigtick_dbl ;incremented each interrupt
bigtick_hi
bigtick_lo
keys ;key value
scratch ;scratch value
tick ;used by delay
endc
;--------
; Start of ROM
;--------
org 0x00 ;Start of code space
goto Start
;--------
; INTERRUPT SERVICE ROUTINE
;--------
org 0x04 ;interrupt vector
Intsvc movwf safe_w ;save w
swapf STATUS,w ;swap status, w
movwf safe_s ;save status(nibble swap, remember)
;--------
; done saving, now start working
;--------
; clear watchdog timer to ensure startup
clrwdt
;
; increment period count
incf period_count,f
btfsc STATUS,Z ;zero set means overflow
decf period_count,f
; 234375 interrupts every minute. Increment the bigtick each time.
incf bigtick_lo,f
btfsc STATUS,Z
incf bigtick_hi,f
btfsc STATUS,Z
incfsz bigtick_dbl,f
goto Bigtick_out
;--------
; here? bigtick has rolled over to zero and one minute has passed.
; reload bigtick and set a flag for the main counter
;--------
movlw 0xFC ;234375 = 0x039387
movwf bigtick_dbl ;0 - 0x039387 = 0xFC6C79
movlw 0x6C
movwf bigtick_hi
movlw 0x79
movwf bigtick_lo
bsf flags,1 ;notify Keep_time
Bigtick_out
;--------
; done working, start restoring
;--------
swapf safe_s,w ;fetch status, reswap nibbles
movwf STATUS ;restore status
swapf safe_w,f ;swap nibbles in preparation
swapf safe_w,w ;for the swap restoration of w
bcf INTCON,2 ;clear interrupt flag before return
retfie ;return from interrupt
;--------
; CHARACTER LOOKUP TABLE
; ignore high bit. set=LED off, clear=LED on, bit0=bottom LED, bit6=top LED
;--------
Char_tbl
addwf PCL,f
"dt 0xC1,0xBE,0xBE,0xBE,0xC1 ; "O" ;
"dt 0xFF,0xDE,0x80,0xFE,0xFF ; "1" ;
" dt 0xDE,0xBC,0xBA,0xB6,0xCE ; "2" ;
" dt 0xBD,0xBE,0xAE,0x96,0xB9 ; "3" ;
" dt 0xF3,0xEB,0xDB,0x80,0xFB ; "4" ;
" dt 0x8D,0xAE,0xAE,0xAE,0xB1 ; "5" ;
"dt 0xE1,0xD6,0xB6,0xB6,0xF9 ; "6" ;
"dt 0xBF,0xB8,0xB7,0xAF,0x9F ; "7" ;
"dt 0xC9,0xB6,0xB6,0xB6,0xC9 ; "8" ;
"dt 0xCF,0xB6,0xB6,0xB5,0xC3 ; "9" ;
"dt 0xFF,0xC9,0xC9,0xFF,0xFF ; ":" ;
Char_tbl_end
;--------
; SUBROUTINES STARTING HERE
;--------
; clear important bits of ram
;--------
Ram_init movlw 0x07
movwf keys
movlw 0x12 ;why do clocks always start
movwf hours ;at 12:00 ?
clrf minutes
clrf dot_index
clrf digit_index
movlw 0xFC
movwf bigtick_dbl
retlw 0
;--------
; unused pins I am setting to be outputs
;--------
Port_init movlw 0x00 ;all output, b7=unused
tris PORTB ;on port b attached to LEDs
movlw b'00010111' ;port a has 5 pins. I need 4 inputs
;b0=minutes, b1=10mins, b2=hours
;b3=unused, b4=rotation index
tris PORTA ;on port a
retlw 0
;--------
; get timer-based interrupts going
;--------
Timer_init bcf INTCON,2 ;clear TMR0 int flag
bsf INTCON,7 ;enable global interrupts
bsf INTCON,5 ;enable TMR0 int
clrf TMR0 ;clear timer
clrwdt ;why is this needed? just do it..
movlw b'11011000' ;set up timer. prescaler(bit3)bypassed
option ;send w to option. generate warning.
clrf TMR0 ;start timer
retlw 0
;--------
; test for index in rotation and store period in period_dup
;--------
Check_index movf PORTA,w ;get the state of port a
xorwf flags,w ;compare with saved state
andlw b'00010000' ;only interested in bit 4
btfsc STATUS,Z ;test for edge
retlw 0 ;not an edge, same as last
xorwf flags,f ;save for next time
btfsc flags,4 ;test for falling edge
retlw 0 ;must have been a rising edge
movf period_count,w ;make a working copy
movwf period_dup ;called period dup
clrf period_count ;a fresh start for next rotation
clrf digit_index ;set to first digit
clrf dot_index ;first column
; calculate a period that does not dither or jitter
; period will not be changed unless new period is really different
movf period_calc,w
subwf period_dup,w ;find difference
btfss STATUS,C ;carry flag set means no borrow
goto Calc_period_neg ;must be other way
sublw 2 ;allowable deviation = 3
btfss STATUS,C ;borrow won't skip
incf period_calc ;new value much larger than calc
retlw 0
Calc_period_neg addlw 2 ;allowable deviation = 3
btfss STATUS,C ;carry will skip
decf period_calc ;no carry means it must be changed
retlw 0
;--------
; change LED pattern based on state of digit_index and dot_index
;--------
Display_now movlw 0x05
xorwf dot_index,w ;test for end of digit
movlw 0xFF ;pattern for blank column
btfsc STATUS,Z
goto D_lookup_3 ;it needs a blank
bcf STATUS,C ;clear carry before a rotate
rlf digit_index,w ;double the index because each
addwf PCL,f ;takes two instructions
D_10hr swapf hours,w
goto D_lookup ;what a great rush of power
D_1hr movf hours,w ;I feel when modifying
goto D_lookup ;the program counter
D_colon movlw 0x0A
goto D_lookup
D_10min swapf minutes,w
goto D_lookup
D_1min movf minutes,w
goto D_lookup
D_nothing retlw 0
D_lookup andlw b'00001111' ;strip off hi bits
movwf scratch ;multiply this by 5 for lookup
addwf scratch,f ;table base position
addwf scratch,f ;is this cheating?
addwf scratch,f ;I think not.
addwf scratch,f ;I think it is conserving energy!
btfss STATUS,Z ;test for zero
goto D_lookup_2 ;not a zero
movf digit_index,f ;this is just to test/set flag
movlw 0xFF ;this makes a blank LED pattern
btfsc STATUS,Z ;test if it is 10 hrs digit
goto D_lookup_3 ;it's a leading zero
D_lookup_2 movf dot_index,w ;get column
addwf scratch,w ;add it to digit base
call Char_tbl ;get the dot pattern for this column
D_lookup_3 movwf PORTB ;send it to the LEDs
movlw 0x0C ;overhead value sub from period
subwf period_calc,w ;compensate for overhead and set
call Delay ;width of digits with this delay
incf dot_index,f ;increment to the next column
movlw 0x06 ;6 columns is a digit plus space
xorwf dot_index,w ;next digit test
btfss STATUS,Z
retlw 0 ;not a new digit
clrf dot_index ;new digit time
incf digit_index,f
retlw 0 ;Display_now done.
;--------
; a short delay routine
;--------
Delay movwf tick
Delay_loop decfsz tick,f
goto Delay_loop ;w is not damaged, so Delay can
return ;be recalled without reloading
;--------
; test for keypress and call time adjust if needed
;--------
Check_keys movf PORTA,w ;get port "a"
xorwf keys,w ;compare with previous
andlw b'00000111' ;only care about button pins
btfsc STATUS,Z ;zero set=no buttons
retlw 0 ;return
xorwf keys,f ;store key value
movlw 0x64 ;a fairly long delay will
movwf scratch ;prevent key bounces
Key_delay movlw 0xFF
call Delay
decfsz scratch
goto Key_delay
btfss keys,2 ;test "minutes" button
goto Inc_mins
btfss keys,1 ;test "tens" button
goto Inc_tens
btfss keys,0 ;test "hours" button
goto Inc_hours
retlw 0 ;must be a glitch. yeah, right!
;--------
; increment ten minutes
;--------
Inc_tens movlw 0x0A
movwf scratch ;scratch has ten
Inc_tens_loop call Inc_mins
decfsz scratch
goto Inc_tens_loop ;another minute added
retlw 0
;--------
; increment one hour
;--------
Inc_hours movlw 0x12
xorwf hours,w
btfsc STATUS,Z
goto Inc_hours_12
movlw 0x07 ;this part gets a little sloppy
addwf hours,w
movlw 0x07
btfss STATUS,DC
movlw 1
addwf hours,f
retlw 0
Inc_hours_12 movlw 0x01
movwf hours
retlw 0
;--------
; increment the time based on flags,1 as sent by interrupt routine
; Inc_mins loop also used by time-setting routine
;--------
Keep_time btfss flags,1 ;the minutes flag
retlw 0 ;not this time
bcf flags,1 ;clear the minutes flag
Inc_mins movlw 0x07 ;start incrementing time
addwf minutes,w ;add 7 minutes into w
btfsc STATUS,DC ;did adding 7 cause digit carry?
goto Sixty_mins ;then test for an hour change
incf minutes ;otherwise add 1 for real
retlw 0 ;and go back
Sixty_mins movwf minutes ;save the minutes
movlw 0x60 ;test for 60
xorwf minutes,w ;are minutes at 60?
btfss STATUS,Z
retlw 0 ;no? go back
clrf minutes ;otherwise zero minutes
goto Inc_hours ;and increment hours
;--------
; End of subroutines
; Program starts here
;--------
Start call Ram_init ;set variables to nice values
call Port_init ;set port directions
call Timer_init ;start timer based interrupt
;--------
; Done initializing, start the endless loop.
;--------
;
Circle ;begin the big loop
;
;--------
; detect falling edge on PORTA,4 to determine rotary index
; calculate rotation period and store in period_dup
; compare with working period(period_calc) and adjust if way different
;--------
call Check_index
;--------
; check display state and change if needed
;--------
call Display_now
;--------
; check keyboard and adjust time
;--------
call Check_keys
;--------
; check minute flag and increment time if a minute has passed
;--------
call Keep_time
;--------
; gentlemen, that's a clock, keep it rolling
;--------
goto Circle ;you heard the man, get going!
end
;--------
; end of file
;--------
Attachment 7790 This is the original of the code.
