最新微機(jī)原理模擬計(jì)算器設(shè)計(jì)課程設(shè)計(jì)(完整版)
【正文】 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 KEY0_1 CALL CLEARKEY0_1:CALL LP1 MOV AL,3FH MOV [SI+4],AL MOV AL,00H MOV [DI+4],AL CALL DISP RETKEYA: CMP BH,00H ；按鍵+號(hào)處理子程序 JNZ KEYA_1 CALL LP3 ；保存輸入的數(shù)據(jù)KEYA_1:MOV BX,0101H ；設(shè)置符號(hào)標(biāo)志 RET ；返回KEYB: CMP BH,00H ；按鍵號(hào)處理子程序 JNZ KEYB_1 CALL LP3 ；保存輸入的數(shù)據(jù)KEYB_1:MOV BX,0102H ；設(shè)置符號(hào)標(biāo)志 RET ；返回KEYC: CMP BH,00H ；按鍵*號(hào)處理子程序 JNZ KEYC_1 CALL LP3 ；保存輸入的數(shù)據(jù)KEYC_1:MOV BX,0103H ；設(shè)置符號(hào)標(biāo)志 RET ；返回KEYD: CMP BH,00H ；按鍵/號(hào)處理子程序 JNZ KEYD_1 CALL LP3 ；保存輸入的數(shù)據(jù)KEYD_1:MOV BX,0104H ；設(shè)置符號(hào)標(biāo)志 RET ；返回KEYE: MOV BH,01H ；按鍵=號(hào)處理子程序 CMP BL,01H ；是+號(hào)？ JZ K1 ；進(jìn)行加法運(yùn)算 CMP BL,02H ；是號(hào)？ JZ K2 ；進(jìn)行減法運(yùn)算 CMP BL,03H ；時(shí)*號(hào)？ JZ K3 ；進(jìn)行乘法運(yùn)算 CMP BL,04H ；是/號(hào)？ JZ K4 ；進(jìn)行除法運(yùn)算STTE: RETK1: CALL ADD1 JMP STTEK2: CALL SUB1 JMP STTEK3: CALL MUL1 JMP STTEK4: CALL DIV1 JMP STTEKEYF: CALL CLEAR ；按鍵C（清零）處理子序 RETCLEAR: MOV SI,OFFSET VAR2 ；數(shù)據(jù)清零子程序 MOV DI,OFFSET VAR3 MOV CX,000AHCLEAR1:MOV AL,3FH MOV [SI],AL MOV AL,00H MOV [DI],AL INC SI INC DI LOOP CLEAR1 MOV BH,00H RETADD1: MOV SI,OFFSET VAR3； ；加法子程序 MOV DI,OFFSET VAR4 CLC MOV CX,0005HADD_1: MOV AL,[DI] ADC AL,[SI] AAA MOV [DI],AL INC SI INC DI LOOP ADD_1 CALL CHANGE CALL DISP RETSUB1: MOV SI,OFFSET VAR3 ；減法子程序 MOV DI,OFFSET VAR4 CLC MOV CX,0005HSUB_1: MOV AL,[DI] MOV CL,[SI] AAS MOV [DI],AL INC SI INC DI LOOP SUB_1 CALL CHANGE CALL DISP RETMUL1: MOV SI,OFFSET VAR3 ；乘法子程序 MOV DI,OFFSET VAR4MOV AL,[DI]
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