微機(jī)原理與接口技術(shù)課程設(shè)計(jì)-文庫(kù)吧資料
2025-06-06 18:02本頁(yè)面
【正文】 KEY_4: TEST AL,40H JNZ KEY_D CALL KEY4 JMP STTK KEY_D: MOV AL,0DFH OUT 61H,AL IN AL,62H TEST AL,80H JNZ KEY_5 CALL KEYD JMP STTK KEY_5: TEST AL,40H JNZ KEY_D CALL KEY5 JMP STTK KEY_E: MOV AL,0BFH OUT 61H,AL IN AL,62H TEST AL,80H JNZ KEY_6 CALL KEYE JMP STTK KEY_6: TEST AL,40H JNZ KEY_F CALL KEY6 JMP STTK KEY_F: MOV AL,07FH OUT 61H,AL IN AL,62H TEST AL,80H JNZ KEY_7 CALL KEYF JMP STTK KEY_7: TEST AL,40H JNZ KEY_71 CALL KEY7 JMP STTK KEY_71:JMP STTK KEY9: CMP BH,00H ；按鍵9處理子程序 JZ KEY9_1 ；未按過(guò)符號(hào)鍵，不清零 CALL CLEAR ；已按過(guò)符號(hào)鍵，清零 KEY9_1:CALL LP1 ；低4位字節(jié)前移 MOV AL,6FH ；最低字節(jié)輸入一個(gè)數(shù)據(jù) MOV [SI+4],AL MOV AL,09H MOV [DI+4],AL CALL DISP ；顯示 RET ；返回 KEY8: CMP BH,00H ；按鍵8處理子程序 JZ KEY8_1 CALL CLEAR KEY8_1:CALL LP1 MOV AL,7FH MOV [SI+4],AL MOV AL,08H MOV [DI+4],AL CALL DISP RET KEY7: CMP BH,00H ；按鍵7處理子程序 JZ KEY7_1 CALL CLEAR KEY7_1:CALL LP1 MOV AL,07H MOV [SI+4],AL MOV AL,07H MOV [DI+4],AL CALL DISP RET KEY6: CMP BH,00H ；按鍵6處理子程序 JZ KEY6_1 CALL CLEAR KEY6_1:CALL LP1 MOV AL,7DH MOV [SI+4],AL MOV AL,06H MOV [DI+4],AL CALL DISP RET KEY5: CMP BH,00H ；按鍵5處理子程序 JZ KEY5_1 CALL CLEAR KEY5_1:CALL LP1 MOV AL,6DH MOV [SI+4],AL MOV AL,05H MOV [DI+4],AL CALL DISP RET KEY4: CMP BH,00H ；按鍵4處理子程序 JZ KEY4_1 CALL CLEAR KEY4_1:CALL LP1 MOV AL,66H MOV [SI+4],AL MOV AL,04H MOV [DI+4],AL CALL DISP RET KEY3: CMP BH,00H ；按鍵3處理子程序 JZ KEY3_1 CALL CLEAR KEY3_1:CALL LP1 MOV AL,4FH MOV [SI+4],AL MOV AL,03H MOV [DI+4],AL CALL DISP RET KEY2: CMP BH,00H ；按鍵2處理子程序 JZ KEY2_1 CALL CLEAR KEY2_1:CALL LP1 MOV AL,5BH MOV [SI+4],AL MOV AL,02H MOV [DI+4],AL CALL DISP RET KEY1: CMP BH,00H ；按鍵1處理子程序 JZ KEY1_1 CALL CLEAR KEY1_1:CALL LP1 MOV AL,06H MOV [SI+4],AL MOV AL,01H MOV [DI+4],AL CALL DISP RET KEY0: CMP BH,00H ；按鍵0處理子程序 JZ KEY0_1 CALL CLEAR KEY0_1:CALL LP1 MOV AL,3FH MOV [SI+4],AL MOV AL,00H MOV [DI+4],AL CALL DISP RET KEY+:
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