最新微機原理模擬計算器設(shè)計課程設(shè)計(編輯修改稿)
2025-07-22 22:29 本頁面
【文章內(nèi)容簡介】 LL KEY3 JMP STTKKEY_C: MOV AL,0EFH OUT 61H,AL IN AL,62H TEST AL,80H JNZ KEY_4 CALL KEYC JMP STTKKEY_4: TEST AL,40H JNZ KEY_D CALL KEY4 JMP STTKKEY_D: MOV AL,0DFH OUT 61H,AL IN AL,62H TEST AL,80H JNZ KEY_5 CALL KEYD JMP STTKKEY_5: TEST AL,40H JNZ KEY_D CALL KEY5 JMP STTKKEY_E: MOV AL,0BFH OUT 61H,AL IN AL,62H TEST AL,80H JNZ KEY_6 CALL KEYE JMP STTKKEY_6: TEST AL,40H JNZ KEY_F CALL KEY6 JMP STTKKEY_F: MOV AL,07FH OUT 61H,AL IN AL,62H TEST AL,80H JNZ KEY_7 CALL KEYF JMP STTKKEY_7: TEST AL,40H JNZ KEY_71 CALL KEY7 JMP STTKKEY_71:JMP STTKKEY9: CMP BH,00H ；按鍵9處理子程序 JZ KEY9_1 ；未按過符號鍵，不清零 CALL CLEAR ；已按過符號鍵，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 CLEARKEY8_1:CALL LP1 MOV AL,7FH MOV [SI+4],AL MOV AL,08H MOV [DI+4],AL CALL DISP RETKEY7: CMP BH,00H ；按鍵7處理子程序 JZ KEY7_1 CALL CLEARKEY7_1:CALL LP1 MOV AL,07H MOV [SI+4],AL MOV AL,07H MOV [DI+4],AL CALL DISP RETKEY6: CMP BH,00H ；按鍵6處理子程序 JZ KEY6_1 CALL CLEARKEY6_1:CALL LP1 MOV AL,7DH MOV [SI+4],AL MOV AL,06H MOV [DI+4],AL CALL DISP RETKEY5: CMP BH,00H ；按鍵5處理子程序 JZ KEY5_1 CALL CLEARKEY5_1:CALL LP1 MOV AL,6DH MOV [SI+4],AL MOV AL,05H MOV [DI+4],AL CALL DISP RETKEY4: CMP BH,00H ；按鍵4處理子程序 JZ KEY4_1 CALL CLEARKEY4_1:CALL LP1 MOV AL,66H MOV [SI+4],AL MOV AL,04H MOV [DI+4],AL CALL DISP RETKEY3: CMP BH,00H ；按鍵3處理子程序 JZ KEY3_1 CALL CLEARKEY3_1:CALL LP1 MOV AL,4FH MOV [SI+4],AL MOV AL,03H MOV [DI+4],AL CALL DISP RETKEY2: CMP BH,00H ；按鍵2處理子程序 JZ KEY2_1 CALL CLEARKEY2_1:CALL LP1 MOV AL,5BH MOV [SI+4],AL MOV AL,02H MOV [DI+4],AL CALL DISP RETKEY1: CMP BH,00H ；按鍵1處理子程序 JZ KEY1_1 CALL CLEARKEY1_1:CALL LP1 MOV AL,06H MOV [SI+4],AL MOV AL,01H MOV [DI+4],AL CALL DISP RETKEY0: CMP BH,00H ；按鍵0處理子程序 JZ K
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