Assembly language i realy need somones help with this pic16f84a question question A de-multiplexer has an input line, pinRB0, and four output lines, output0 to output3, which are, respectively, the pins RA0-RA3. the demultiplexer copies the digital signal appearing on the input line on to one of the four output lines. The output line is selected by a two bit selection code input on the pins RB1 and RB2. end of question i have done the code,the following is the code, but its not right please can u help me fix it Code: #DEFINE PAGE0 BCF 0x03,5 #DEFINE PAGE1 BSF 0x03,5 PCL: EQU 0x02 STATUS: EQU 0x03 PORTA: EQU 0x05 TRISA: EQU 0x05 PORTB: EQU 0x06 TRISB: EQU 0x06 W: EQU 0 F: EQU 1 ORG 0x0 goto MAIN org 5 MAIN: clrf PORTA clrf PORTNB PAGE1 movlw B'00000111' iorwf TRISA,F ;RA0-RA2 as input clrf TRISB ;Port B0-B7 as output PAGE0 loop: ;get the output selector movf PORTB,w rrf WREG andlw B'00000011' ;convert 0-3 to bit-mask call table movwf Mask ;switch all zeroes to ones in mask and vice versa xorlw B'11111111',w ;read all the bits of PORTA but the selected one (leave it clear) andwf PORTA,w ;if PORTB.0 is set, set also selected output in PORTA btfsc PORTB,0 orwf Mask,w ;write modified value back to PORTA movwf PORTA goto loop table: addwf PCL,F retlw B'00000001' retlw B'00000010' retlw B'00000100' retlw B'00001000'