lab2-asm-v4

; =---------------------
; this's my task:
; =---------------------
; f = !Y * Z + !X
; =---------------------

        ORG     0H
        AJMP    START
        ORG     30H


; there i'll set up my external memory.
START:
        MOV     DPTR,   #10h
        MOV     A,      #10000000b
        MOVX    @DPTR,  A
        INC     DPTR

        MOV     A,      #00000001b
        MOVX    @DPTR,  A
        INC     DPTR

        MOV     A,      #00000010b
        MOVX    @DPTR,  A
        INC     DPTR

        MOV     A,      #00000011b
        MOVX    @DPTR,  A
        INC     DPTR

        MOV     A,      #00000100b
        MOVX    @DPTR,  A
        INC     DPTR

        MOV     A,      #00000101b
        MOVX    @DPTR,  A
        INC     DPTR

        MOV     A,      #00000110b
        MOVX    @DPTR,  A
        INC     DPTR

        MOV     A,      #00000111b
        MOVX    @DPTR,  A


        MOV     R0,     #10h
        MOV     R1,     #08d
        MOV     DPL,    R0


LOOP:
        MOV     0C0H,   #00110000b
        MOVX    A,      @DPTR

        ORL     0C0H,   A

        ACALL   FFUNC
        ACALL   FSEND

        INC     DPTR
        DJNZ    R1,     LOOP

        AJMP    START


FSEND:
        SETB    0C0H.4
        JNB     0C0H.5, $
        CPL     0C0H.4
        JB      0C0H.5, $

        RET


FFUNC:
        MOV     C,      0C0H.1
        CPL     C
        ANL     C,      0C0H.0
        ORL     C,      /0C0H.2
        MOV     0C0H.3, C

        XRL     A,      0C0H
        MOV     P3,     A
        MOV     C,      P3.3
        MOV     0C0H.7, C

        RET

END