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Lập trình và mô phỏng mạch máy tính đơn giản sử dụng bàn phím ma trận 4x4
Mo Phong May Tinh Bo Tui Ban Phim 4x4 voi 2 led 7 doan noi vao P0 va P1 dung 89C51 Va 74LS134 .zip để thực hiện 4 phép tính (cộng, trừ, nhân chia) đơn giản của 2 số hạng có 1 chữ số.
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Dưới đây la code chương trình
;-----------------------------------****CHUONG TRINH CHINH****-------------------
ORG 00H
MOV P0,#0FFH
MOV R0,#1 ; BIEN SO HANG 1: SO HANG THU 1 ; 2: SO HANG THU 2
MOV R1,#0 ; BIEN PHEP TOAN 1:+ ; 2:- ; 3:X ; 4:÷
MOV R6,#0 ; SO HANG THU 1
MOV R7,#0 ; SO HANG THU 2
JMP Main
Sw7:
CJNE R0,#1,NH7
MOV R6,#7
MOV R0,#2
MOV 31H,#7
JMP Hienthi
NH7:
MOV R7,#7
MOV R0,#1
MOV 31H,#7
JMP Hienthi
Sw8:
CJNE R0,#1,NH8
MOV R6,#8
MOV R0,#2
MOV 31H,#8
JMP Hienthi
NH8:
MOV R7,#8
MOV R0,#1
MOV 31H,#8
JMP Hienthi
Sw9:
CJNE R0,#1,NH9
MOV R6,#9
MOV R0,#2
MOV 31H,#9
JMP Hienthi
NH9:
MOV R7,#9
MOV R0,#1
MOV 31H,#9
JMP Hienthi
Sw4:
CJNE R0,#1,NH42
MOV R6,#4
MOV R0,#2
MOV 31H,#4
JMP Hienthi
NH42:
MOV R7,#4
MOV R0,#1
MOV 31H,#4
JMP Hienthi
Sw5:
CJNE R0,#1,NH5
MOV R6,#5
MOV R0,#2
MOV 31H,#5
JMP Hienthi
NH5:
MOV R7,#5
MOV R0,#1
MOV 31H,#5
JMP Hienthi
Swcong:
MOV R1,#1
JMP Main
Swtru:
MOV R1,#2
JMP Main
Swnhan:
MOV R1,#3
JMP Main
Swchia:
MOV R1,#4
JMP Main
Main: ; QUET PHIM
MOV P0,#0FEH ; COT CAC PHIM 7,8,9,÷
JNB P0.4,Sw7
JNB P0.5,Sw8
JNB P0.6,Sw9
JNB P0.7,Swchia
MOV P0,#0FDH ; COT CAC PHIM 4,5,6,X
JNB P0.4,Sw4
JNB P0.5,Sw5
JNB P0.6,Sw6
JNB P0.7,Swnhan
MOV P0,#0FBH ; COT CAC PHIM 1,2,3,-
JNB P0.4,Sw1
JNB P0.5,Sw2
JNB P0.6,Sw3
JNB P0.7,Swtru
MOV P0,#0F7H ; COT CAC PHIM ON/C,0,=,+
JNB P0.4,Swon
JNB P0.5,Sw0
JNB P0.6,Swbang
JNB P0.7,Swcong
SJMP Main
Sw6:
CJNE R0,#1,NH6
MOV R6,#6
MOV R0,#2
MOV 31H,#6
JMP Hienthi
NH6:
MOV R7,#6
MOV R0,#1
MOV 31H,#6
JMP Hienthi
Sw1:
CJNE R0,#1,NH1
MOV R6,#1
MOV R0,#2
MOV 31H,#1
JMP Hienthi
NH1:
MOV R7,#1
MOV R0,#1
MOV 31H,#1
JMP Hienthi
Sw2:
CJNE R0,#1,NH2
MOV R6,#2
MOV R0,#2
MOV 31H,#2
JMP Hienthi
NH2:
MOV R7,#2
MOV R0,#1
MOV 31H,#2
JMP Hienthi
Sw3:
CJNE R0,#1,NH3
MOV R6,#3
MOV R0,#2
MOV 31H,#3
JMP Hienthi
NH3:
MOV R7,#3
MOV R0,#1
MOV 31H,#3
JMP Hienthi
Swon:
MOV 31H,#0
MOV R0,#1
MOV R1,#0
MOV R6,#0
MOV R7,#0
JMP Hienthi
Sw0:
CJNE R0,#1,NH0
MOV R6,#0
MOV R0,#2
MOV 50H,#0
JMP Hienthi
NH0:
MOV R7,#0
MOV R0,#1
MOV 31H,#0
JMP Hienthi
Swbang:
CJNE R1,#1,KT02
MOV A,R6
ADD A,R7
JMP KTHUC
KT02:
CJNE R1,#2,KT03
MOV A,R6
SUBB A,R7
SJMP KTHUC
KT03:
CJNE R1,#3,KT04
MOV A,R6
MOV B,R7
MUL AB
SJMP KTHUC
KT04:
CJNE R1,#4,KTHUC
MOV A,R6
MOV B,R7
DIV AB
KTHUC:
MOV 31H,A
Hienthi:
MOV A,31H
MOV B,#10
DIV AB ;HANG CHUC
MOV DPTR,#MALED7
MOVC A,@A+DPTR
MOV P1,A ;XUAT MA RA LED 7 DOAN
CLR P2.1
SETB P2.1 ;TAO XUNG CANH LEN IC2
MOV A,B ;HANG DON VI
MOV DPTR,#MALED7
MOVC A,@A+DPTR
MOV P1,A ;XUAT MA RA LED 7 DOAN
CLR P2.0
SETB P2.0 ;TAO XUNG CANH LEN IC1
CALL Delay
JMP Main ;QUAY LAI TIEP TUC QUET PHIM
MALED7: ; MA LED 7 DOAN
DB 0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H,90H
Delay: ; TAO THOI GIAN TRE(205X20MS)
PUSH 07
MOV R2,#205
SETB TR0
Delay1:
MOV TH0,#HIGH(-20000)
MOV TL0,#LOW(-20000)
JNB TF0,$
CLR TF0
DJNZ R2,Delay1
CLR TR0
POP 07
RET
END
Nhấp đúp vào hình để xem hình lớn hơn
Dưới đây la code chương trình
;-----------------------------------****CHUONG TRINH CHINH****-------------------
ORG 00H
MOV P0,#0FFH
MOV R0,#1 ; BIEN SO HANG 1: SO HANG THU 1 ; 2: SO HANG THU 2
MOV R1,#0 ; BIEN PHEP TOAN 1:+ ; 2:- ; 3:X ; 4:÷
MOV R6,#0 ; SO HANG THU 1
MOV R7,#0 ; SO HANG THU 2
JMP Main
Sw7:
CJNE R0,#1,NH7
MOV R6,#7
MOV R0,#2
MOV 31H,#7
JMP Hienthi
NH7:
MOV R7,#7
MOV R0,#1
MOV 31H,#7
JMP Hienthi
Sw8:
CJNE R0,#1,NH8
MOV R6,#8
MOV R0,#2
MOV 31H,#8
JMP Hienthi
NH8:
MOV R7,#8
MOV R0,#1
MOV 31H,#8
JMP Hienthi
Sw9:
CJNE R0,#1,NH9
MOV R6,#9
MOV R0,#2
MOV 31H,#9
JMP Hienthi
NH9:
MOV R7,#9
MOV R0,#1
MOV 31H,#9
JMP Hienthi
Sw4:
CJNE R0,#1,NH42
MOV R6,#4
MOV R0,#2
MOV 31H,#4
JMP Hienthi
NH42:
MOV R7,#4
MOV R0,#1
MOV 31H,#4
JMP Hienthi
Sw5:
CJNE R0,#1,NH5
MOV R6,#5
MOV R0,#2
MOV 31H,#5
JMP Hienthi
NH5:
MOV R7,#5
MOV R0,#1
MOV 31H,#5
JMP Hienthi
Swcong:
MOV R1,#1
JMP Main
Swtru:
MOV R1,#2
JMP Main
Swnhan:
MOV R1,#3
JMP Main
Swchia:
MOV R1,#4
JMP Main
Main: ; QUET PHIM
MOV P0,#0FEH ; COT CAC PHIM 7,8,9,÷
JNB P0.4,Sw7
JNB P0.5,Sw8
JNB P0.6,Sw9
JNB P0.7,Swchia
MOV P0,#0FDH ; COT CAC PHIM 4,5,6,X
JNB P0.4,Sw4
JNB P0.5,Sw5
JNB P0.6,Sw6
JNB P0.7,Swnhan
MOV P0,#0FBH ; COT CAC PHIM 1,2,3,-
JNB P0.4,Sw1
JNB P0.5,Sw2
JNB P0.6,Sw3
JNB P0.7,Swtru
MOV P0,#0F7H ; COT CAC PHIM ON/C,0,=,+
JNB P0.4,Swon
JNB P0.5,Sw0
JNB P0.6,Swbang
JNB P0.7,Swcong
SJMP Main
Sw6:
CJNE R0,#1,NH6
MOV R6,#6
MOV R0,#2
MOV 31H,#6
JMP Hienthi
NH6:
MOV R7,#6
MOV R0,#1
MOV 31H,#6
JMP Hienthi
Sw1:
CJNE R0,#1,NH1
MOV R6,#1
MOV R0,#2
MOV 31H,#1
JMP Hienthi
NH1:
MOV R7,#1
MOV R0,#1
MOV 31H,#1
JMP Hienthi
Sw2:
CJNE R0,#1,NH2
MOV R6,#2
MOV R0,#2
MOV 31H,#2
JMP Hienthi
NH2:
MOV R7,#2
MOV R0,#1
MOV 31H,#2
JMP Hienthi
Sw3:
CJNE R0,#1,NH3
MOV R6,#3
MOV R0,#2
MOV 31H,#3
JMP Hienthi
NH3:
MOV R7,#3
MOV R0,#1
MOV 31H,#3
JMP Hienthi
Swon:
MOV 31H,#0
MOV R0,#1
MOV R1,#0
MOV R6,#0
MOV R7,#0
JMP Hienthi
Sw0:
CJNE R0,#1,NH0
MOV R6,#0
MOV R0,#2
MOV 50H,#0
JMP Hienthi
NH0:
MOV R7,#0
MOV R0,#1
MOV 31H,#0
JMP Hienthi
Swbang:
CJNE R1,#1,KT02
MOV A,R6
ADD A,R7
JMP KTHUC
KT02:
CJNE R1,#2,KT03
MOV A,R6
SUBB A,R7
SJMP KTHUC
KT03:
CJNE R1,#3,KT04
MOV A,R6
MOV B,R7
MUL AB
SJMP KTHUC
KT04:
CJNE R1,#4,KTHUC
MOV A,R6
MOV B,R7
DIV AB
KTHUC:
MOV 31H,A
Hienthi:
MOV A,31H
MOV B,#10
DIV AB ;HANG CHUC
MOV DPTR,#MALED7
MOVC A,@A+DPTR
MOV P1,A ;XUAT MA RA LED 7 DOAN
CLR P2.1
SETB P2.1 ;TAO XUNG CANH LEN IC2
MOV A,B ;HANG DON VI
MOV DPTR,#MALED7
MOVC A,@A+DPTR
MOV P1,A ;XUAT MA RA LED 7 DOAN
CLR P2.0
SETB P2.0 ;TAO XUNG CANH LEN IC1
CALL Delay
JMP Main ;QUAY LAI TIEP TUC QUET PHIM
MALED7: ; MA LED 7 DOAN
DB 0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H,90H
Delay: ; TAO THOI GIAN TRE(205X20MS)
PUSH 07
MOV R2,#205
SETB TR0
Delay1:
MOV TH0,#HIGH(-20000)
MOV TL0,#LOW(-20000)
JNB TF0,$
CLR TF0
DJNZ R2,Delay1
CLR TR0
POP 07
RET
END
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