微機(jī)原理與接口技術(shù)課程設(shè)計(jì)---模擬計(jì)算器設(shè)計(jì)(文件)
【正文】 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 18 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 19 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 20 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+: 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 KEY: CMP BH,00H ；按鍵 號(hào)處理子程序 JNZ KEYB_1 21 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 KEY*: 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 KEY/: 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 KEY=: 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: RET K1: CALL ADD1 JMP STTE K2: CALL SUB1 JMP STTE K3: CALL MUL1
公司管理相關(guān)推薦
鄂ICP備17016276號(hào)-1