Microprocessor_Lab/LAB 6/TASK 4 at main · Ghaida-jaaisa/Microprocessor_Lab · GitHub

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CODE SEGMENT
           ASSUME CS:CODE,DS:CODE,ES:CODE,SS:CODE

    PPIC_C EQU    1EH
    PPIC   EQU    1CH
    PPIB   EQU    1AH
    PPIA   EQU    18H

           ORG    1000H
           MOV    AL,10000000B
           OUT    PPIC_C,AL

           MOV    AL,11111111B
           OUT    PPIA,AL

    L1:    MOV    SI,OFFSET FONT1
           MOV    BL,8                               ; font No.
    L3:    MOV    BH,30                              ; display time

    L2:    PUSH   SI
           CALL   SCAN
           POP    SI
           DEC    BH
           JNZ    L2
           ADD    SI,8
           DEC    BL
           JNZ    L3
           JMP    L1
           INT    3


           SCAN   PROCNEAR
           MOV    AH,00000001B
    SCAN1: MOV    AL,BYTE PTR CS:[SI]
           OUT    PPIB,AL

           MOV    AL,AH
           OUT    PPIC,AL
           CALL   TIMER
           INC    SI
           CLC
           ROL    AH,1
           JNC    SCAN1
           RET
SCAN ENDP

    TIMER: MOV    CX,300
    TIMER1:NOP
           NOP
           NOP
           NOP
           LOOP   TIMER1
           RET

    FONT1: DB     11111111B
           DB     11111111B
           DB     11111110B
           DB     11111101B
           DB     11111011B
           DB     11111101B
           DB     11111110B
           DB     11111111B

    FONT2: DB     11111111B
           DB     11111111B
           DB     11111101B
           DB     11111011B
           DB     11110111B
           DB     11111011B
           DB     11111101B
           DB     11111111B

    FONT3: DB     11111111B
           DB     11111111B
           DB     11111011B
           DB     11110111B
           DB     11101111B
           DB     11110111B
           DB     11111011B
           DB     11111111B

    FONT4: DB     11111111B
           DB     11111111B
           DB     11110111B
           DB     11101111B
           DB     11011111B
           DB     11101111B
           DB     11110111B
           DB     11111111B

    FONT5: DB     11111111B
           DB     11111111B
           DB     11101111B
           DB     11011111B
           DB     10111111B
           DB     11011111B
           DB     11101111B
           DB     11111111B

    FONT6: DB     11111111B
           DB     11111111B
           DB     11011111B
           DB     10111111B
           DB     01111111B
           DB     10111111B
           DB     11011111B
           DB     11111111B

    FONT7: DB     11111111B
           DB     11111111B
           DB     10111111B
           DB     01111111B
           DB     11111110B
           DB     01111111B
           DB     10111111B
           DB     11111111B

    FONT8: DB     11111111B
           DB     11111111B
           DB     01111111B
           DB     11111110B
           DB     11111101B
           DB     11111110B
           DB     01111111B
           DB     11111111B

CODE ENDS
END