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Within these pages, you can find many useful pieces of code mostly in assembly for the Microchip PIC micro controller family. A lot of people have spend many hours trying to put the bits and bytes together. If the code is NOT written by a member of the PCB Heaven community, then a link will be added above the code with the original website that this code was found.
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View code
Binary to ASCII, 8 bit to 3 digits
Unknown author
This code was originally located @ http://www.piclist.com
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BIN2BCD
;---------------------
;in: BIN
;out huns. tens, ones
;uses ADD-3 algoerthm
movlw 8
movwf count
clrf huns
clrf tens
clrf ones
BCDADD3
movlw 5
subwf huns, 0
btfsc STATUS, C
CALL ADD3HUNS
movlw 5
subwf tens, 0
btfsc STATUS, C
CALL ADD3TENS
movlw 5
subwf ones, 0
btfsc STATUS, C
CALL ADD3ONES
decf count, 1
bcf STATUS, C
rlf BIN, 1
rlf ones, 1
btfsc ones,4 ;
CALL CARRYONES
rlf tens, 1
btfsc tens,4 ;
CALL CARRYTENS
rlf huns,1
bcf STATUS, C
movf count, 0
btfss STATUS, Z
GOTO BCDADD3
movf huns, 0 ; add ASCII Offset
addlw h'30'
movwf huns
movf tens, 0 ; add ASCII Offset
addlw h'30'
movwf tens
movf ones, 0 ; add ASCII Offset
addlw h'30'
movwf ones
RETURN
ADD3HUNS
movlw 3
addwf huns,1
RETURN
ADD3TENS
movlw 3
addwf tens,1
RETURN
ADD3ONES
movlw 3
addwf ones,1
RETURN
CARRYONES
bcf ones, 4
bsf STATUS, C
RETURN
CARRYTENS
bcf tens, 4
bsf STATUS, C
RETURN |
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