- A1 EQU 0000H
- B1 EQU 0002H
- C1 EQU 0004H
- CTR1 EQU 0006H ;8255各端口地址
- A2 EQU 0200H ;8253計數器0端口地址
- CTR2 EQU 0206H ;8253控制端口地址
- A3 EQU 0100H
- DATA SEGMENT
- KEYNUM DB 0EEH,0DEH,0BEH,7EH,0EDH,0DDH
- DB 0BDH,7DH,0EBH,0DBH,0BBH
- DB 0BH,0E7H,0D7H,0B7H,77H
- TAB DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH,77H,7CH,39H,5EH,79H,71H
- BUF DB 0,0,0,0
- BUF1 DB 0,0,0,0,0,0,0,0
- BUF2 DB 0,0 ;前為第一開關計數
- BUF3 DB 80 DUP (?)
- DATA ENDS
- CODE SEGMENT 'CODE'
- ASSUME DS:DATA,CS:CODE
- START:MOV AX,DATA
- MOV DS,AX
- MOV AX,0
- MOV ES,AX
- MOV DI,08
- MOV AX,OFFSET INTR_KEY
- CLD
- STOSW
- MOV AX,SEG INTR_KEY
- STOSW
- MOV AX,DATA
- MOV ES,AX
- MOV AL,10001001B ;8255寫入控制字,A口、B口輸出顯示,C口高4位低4位輸入
- MOV DX,CTR1
- OUT DX,AL
- N3: CALL JISHU
- JMP N3
- N2: LEA SI,BUF2
- MOV BH,00H
- MOV BL,1H[SI]
- LEA DI,BUF3
- ADD DI,BX
- ADD BL,8
- MOV 1H[SI],BL
- LEA SI,BUF1
- CLD
- MOV CX,8
- REP MOVSB
- N4: CALL DIS
- JMP N4
- N5: LEA SI,BUF2
- MOV BH,00H
- MOV BL,1H[SI]
- CMP BL,0
- JZ N1
- LEA DI,BUF1
- SUB BL,8
- MOV 1H[SI],BL
- LEA SI,BUF3
- ADD SI,BX
- CLD
- MOV CX,8
- REP MOVSB
- N6: CALL DIS
- JMP N6
- N1: CALL QINLIN
- JMP N1
- ;JMP START
- JISHU PROC NEAR
- LEA SI,BUF
- MOV BL,[SI]
- CMP BL,100
- JNZ S6
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