> a working & tested procedure for the 18Fxxx series chips

Variables needed - kzero, cnt1, temp (which I already have defined
for other routines and use them here as scratch), and 5 consecutive
bytes in RAM starting with dg1, which is the MSD

Enter with 16 bit number in hi:lo, ASCII returned in dg1 to dg5

;================================================
;        Convert 16-bit data to ASCII for LCD
;================================================

ascii16 nop

 radix dec

         movf    fsr0l,w      ;save fsr
         movwf   cnt1
         clrf    kzero
         clrf    temp
         movlw   dg1    ;set store address
         movwf   fsr0l

         goto    skpinc1
sub10k   incf    temp,f
skpinc1  movlw   10000 & 255
         subwf   lo,f

 IFNDEF  kzero

         movlw   10000 >> 8
         btfss   carry
         movlw   (10000>>8)+1
         subwf   hi,f
 ELSE
         rlcf    kzero,W
         sublw   (10000>>8)+1
         subwf   hi,F
 ENDIF
         bc      sub10k
         call    out_temp

         movlw   10
         movwf   temp
add1K    decf    temp,f
         movlw   1000 & 255
         addwf   lo,f

 IFNDEF  kzero
         movlw   1000 >> 8
         btfsc   carry
         movlw   (1000>>8)+1
         addwf    hi,f
 ELSE
         rlcf    kzero,w
         addlw   1000 >> 8
         addwf   hi,f
 ENDIF
         bnc     add1k
         call    out_temp

         clrf    temp
         movlw   100
         goto    skpinc2
sub100
         incf    temp,f
skpinc2  subwf   lo,f
         btfsc   carry
         goto    sub100

         decf    hi,f
         btfss   hi,7
         goto    sub100

         call    out_temp

         movlw   10
         movwf   temp
add10    decf    temp,f
         addwf   lo,f
         bnc     add10
         call    out_temp     ;convert and store
         call    out_lo       ;convert and store
         movf    cnt1,w       ;restore fsr
         movwf   fsr0l

 radix hex

        return

;convert to ASCII and store

out_temp movf    temp,w
         addlw   0x30         ;add 0x30 to convert to ASCII
         movwf   indf0
         incf    fsr0l,f      ;store in RAM at dg1+fsr0l
         return

out_lo   movf    lo,w
         addlw   0x30
         movwf   indf0
         return

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