Some ASM Help Please

[pedja089]

You must dig little dipper in PBP librarys. Look for PBPPICxx.mac and PBPPICxx.LIB files for macro definition.
If I was in your place, I would start from controlling PIN, then LCD basic communication, to display char, then to math involved in digit extraction...
EDIT:
PBP libs are great resource for learning ASM.... Lot of work and testing are organized and described in one place....
I learned ASM from PBP lib, and PIC datasheet. Now all interrupts my are written in ASM.

[mpgmike]

Thanks, predja089. Spent the day fighting with it, but I have something that works. I tried typing it into PBP3 & looking at the ASM, but that didn't get me there. Now I'm able to take an ADC-12 read (0 >> 4095) and convert it into 4 decimal digits:

	MOVF	ADRESH,W
	MOVWF	b0
	MOVF	ADRESL,W
	MOVF	b1
	CALL	DoMath
	MOVLW	0x30
	ADDWF	Dig1,W
	MOVWF	Volts11
	MOVLW	0x30
	ADDWF	Dig2,W
	MOVWF	Volts12
	MOVLW	0x30
	ADDWF	Dig3,W
	MOVWF	Volts13
	MOVLW	0x30
	ADDWF	Dig4,W
	MOVWF	Volts14
	CALL	Display
	RETURN

DoMath:
    BANKSEL Dig1
    CLRF    Dig1
    CLRF    Dig2
    CLRF    Dig3
    CLRF    Dig4
    BCF	    STATUS, C
    BCF	    STATUS, DC
Math2:			    ;Find the 1000,s Digit
    MOVLW   0x03
    SUBWF   b1, W
    BTFSS   STATUS,C
    BRA	    Math3
    MOVLW   0xE8
    SUBWF   b0, W
    BTFSS   STATUS,C
    BRA	    Math2a
    MOVLW   0x03
    SUBWF   b1, F
    MOVLW   0xE8
    SUBWF   b0, F
    INCF    Dig1
    BRA	    Math2
Math2a:
    MOVLW   0x04
    SUBWF   b1,W
    BTFSS   STATUS,C
    GOTO    Math3
    MOVLW   0x04
    SUBWF   b1,F
    MOVLW   0x18
    ADDWF   b0
    INCF    Dig1
    BRA	    Math2
Math3:			    ;Find the 100,s Digit
    MOVLW   0x64
    SUBWF   b0, W
    BTFSS   STATUS,C
    BRA	    Math4
    MOVLW   0x64
    SUBWF   b0, F
    INCF    Dig2
    BRA	    Math3
Math4:			    ;Account for V1H Carry/Borrow
    DECF    b1, W
    BTFSS   STATUS,Z
    GOTO    Math5
    DECF    b1,F
    MOVLW   0x9C
    ADDWF   b0
    INCF    Dig2
    BRA	    Math3
Math5:			    ;Find the 10,s Digit
    MOVLW   0x0A
    SUBWF   b0, W
    BTFSS   STATUS,C
    BRA	    Math6
    MOVLW   0x0A
    SUBWF   b0, F
    INCF    Dig3
    BRA	    Math5
Math6:
    MOVF    b0,W
    MOVWF   Dig4
 RETURN