# PICMicrocontoller Radix MathMethod

## Binary to ASCII, 8 bit to 3 digits

TakeThisOuTa.borowski at spamstudent.qut.edu.au shares this code:

Here's a nice bit of code that turns a 8 bit binary number into it's hundreds, tens and ones in ASCII, suitable for displaying. Simply put your number in 'bin', call BIN2BCD, then use huns, tens and ones for display.
```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
```

Comments:

• Short, but very nice and useful. Thanks.
Jack+
• TakeThisOuTmike.hooper at spampanavision.co.uk
Just what I was looking for. As a hardware engineer trying my hand at using PICS, I've found there are an awful lot of things to learn!

Thanks very much.
+

See also:

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