微機(jī)課程設(shè)計(jì)計(jì)算器

1、 課 程 設(shè) 計(jì) 課程名稱 微機(jī)課程設(shè)計(jì) 題目名稱_ 計(jì)算器（1） 學(xué)生學(xué)院_ _ 自動(dòng)化_ 一、課程設(shè)計(jì)的目的1、鞏固和加深對(duì)微機(jī)原理及應(yīng)用課程內(nèi)容的認(rèn)識(shí)和理解，提高應(yīng)用水平2、掌握匯編語言程序的編程方法3、熟悉鍵盤控制和七段數(shù)碼管的使用二、課程設(shè)計(jì)的內(nèi)容 1.把存儲(chǔ)器單元中的0ah，02h，0fh,09h從四位七段led數(shù)碼管同時(shí)顯示出來，要求做成循環(huán)程序，并使用xlat來譯碼。2編寫程序，實(shí)現(xiàn)以下鍵盤功能，按任意鍵在顯示器上顯示對(duì)應(yīng)鍵值，要求顯示值能夠?qū)崿F(xiàn)左移功能。5a7fb3c0 3.實(shí)現(xiàn)：a)定義鍵盤按鍵，5個(gè)為數(shù)字鍵3、4、5、6、7，7個(gè)功能鍵：減號(hào)，除號(hào)，等號(hào)；b)可進(jìn)行三位8

2、進(jìn)制減法運(yùn)算；c)可進(jìn)行兩位10進(jìn)制除法運(yùn)算。三、課程設(shè)計(jì)應(yīng)完成的工作1.搜集、整理和研究資料，可參考教材后的實(shí)例。2.按電路框圖連接電路，編寫程序完成各個(gè)程序設(shè)計(jì)要求，并完成調(diào)試。3.完成課程設(shè)計(jì)的報(bào)告書一份。四、課程設(shè)計(jì)進(jìn)程安排序號(hào)設(shè)計(jì)各階段內(nèi)容地點(diǎn)起止日期1領(lǐng)取任務(wù)書實(shí)2-20612.222收集，整理資料圖書館、宿舍12.223上機(jī)編寫調(diào)試程序?qū)?-20612.2312.244撰寫課程設(shè)計(jì)報(bào)告宿舍12.25五、應(yīng)收集的資料及主要參考文獻(xiàn)1.微型計(jì)算機(jī)原理及應(yīng)用.許立梓等編.北京：機(jī)械工業(yè)出版社，20032.微型計(jì)算機(jī)原理及應(yīng)用習(xí)題解答、試驗(yàn)指導(dǎo)及課程設(shè)計(jì). 許立梓等編.北京：機(jī)械工業(yè)出版

3、社，2008發(fā)出任務(wù)書日期：2008年 12月 22日 指導(dǎo)教師簽名：計(jì)劃完成日期： 2008 年 12月 25日 基層教學(xué)單位責(zé)任人簽章：主管院長(zhǎng)簽章：目錄一、源程序51程序一51.1 題目51.2 源程序52程序二62.1題目62.2 源程序63程序三103.1題目103.2 源程序10二、心得與體會(huì)19三、參考文獻(xiàn)191.程序一1.1題目：把存儲(chǔ)器單元中的0ah，02h，0fh,09h從四位七段led數(shù)碼管同時(shí)顯示出來，要求做成循環(huán)程序，并使用xlat來譯碼。1.2源程序：stack segment stack dw 64 dup(?)stack endsdata segmenttab1

4、 db 0ah,02h,0fh,09h ；設(shè)置四位查詢位tab2 db 3fh,06h,5bh,4fh,66h,6dh,7dh,07h ；設(shè)置0f的十六位數(shù)碼管段碼 db 7fh,6fh,77h,7ch,39h,5eh,79h,71hdata endscode segment assume cs:code,ds:datastart: mov ax,data mov ds,ax mov al,80h ；8255a初始化 out 63h,all1: mov dl,0feh mov si,offset tab1 mov cx,0004hl2: mov al,dl ；位碼送給al out 60h,al

5、 mov al,si mov bx,offset tab2 ；查表取出數(shù)碼管的段碼 xlat tab2 out 61h,al ；查表的段碼送a口顯示 inc si rol dl,01h ；下個(gè)要顯示的數(shù)碼管位碼 call time loop l2 jmp l1time: push ax ；延時(shí)程序 push cx mov cx,0002htime1: mov ax,0300htime2: dec ax jnz time2 loop time1 pop cx pop ax retcode ends end start2.程序一2.1題目：2編寫程序，實(shí)現(xiàn)以下鍵盤功能，按任意鍵在顯示器上顯示對(duì)應(yīng)鍵

6、值，要求顯示值能夠?qū)崿F(xiàn)左移功能。5a7fb3c02.2源程序：stack segment stack dw 64 dup (?)stack endsdata segmentvar1 db 07h,0bh,0dh,0ehvar2 db 3fh,3fh,3fh,3fh,3fhvar3 db 00h,00h,00h,00h,00htabl db 3fh,06h,5bh,4fh,66h,6dh,7dh,07h db 7fh,6fh,77h,7ch,39h,5eh,79h,71hdata endscode segment assume cs:code,ds:datastart: mov ax,data

7、mov ds,ax mov al,88h out 63h,al ；8255a初始化stt: mov al,00h ；鍵盤測(cè)試 out 60h,alnext: in al,62h and al,60h cmp al,60h jnz keyabc call disp ；調(diào)用顯示程序 jmp stt；-keyabc: call time ；延時(shí)，去抖動(dòng) in al,62h and al,60h cmp al,60h jnz key jmp sttkey: mov al,0feh ；鍵盤掃描識(shí)別 out 60h,al in al,62h test al,40h jnz key_b call key5

8、jmp sttkkey_b: test al,20h jnz key_a call keyb jmp sttkkey_a: mov al,0fdh out 60h,al in al,62h test al,40h jnz key_3 call keya jmp sttkkey_3: test al,20h jnz key_7 call key3 jmp sttkkey_7: mov al,0fbh out 60h,al in al,62h test al,40h jnz key_c call key7 jmp sttkkey_c: test al,20h jnz key_f call keyc

9、 jmp sttkkey_f: mov al,0f7h out 60h,al in al,62h test al,40h jnz key_0 call keyf jmp sttkkey_0: test al,20h jnz key_01 call key0key_01: jmp sttk；- ；按鍵5處理子程序key5: call lp1 ；低4位字節(jié)前移 mov al,05h mov di+4,al lea bx,tabl ；查表取出要顯示數(shù)字的數(shù)碼管段碼 xlat tabl mov si+4,al call disp ；顯示 ret ；返回；-keyb: call lp1 ；按鍵b處理子程

10、序 mov al,0bh mov di+4,al lea bx,tabl xlat tabl mov si+4,al call disp ret；-keya: call lp1 ；按鍵a處理子程序 mov al,0ah mov di+4,al lea bx,tabl xlat tabl mov si+4,al call disp ret；-key3: call lp1 ；按鍵3處理子程序 mov al,03h mov di+4,al lea bx,tabl xlat tabl mov si+4,al call disp ret；-key7: call lp1 ；按鍵7處理子程序 mov al,

11、07h mov di+4,al lea bx,tabl xlat tabl mov si+4,al call disp ret；-keyc: call lp1 ；按鍵c處理子程序 mov al,0ch mov di+4,al lea bx,tabl xlat tabl mov si+4,al call disp ret；-keyf: call lp1 ；按鍵f處理子程序 mov al,0fh mov di+4,al lea bx,tabl xlat tabl mov si+4,al call disp ret；-key0: call lp1 ；按鍵0處理子程序 mov al,00h mov d

12、i+4,al lea bx,tabl xlat tabl mov si+4,al call disp ret ；-lp1: mov cx,0004h ；數(shù)據(jù)移位保存子程序（前移四位） mov si,offset var2 mov di,offset var3lp2: mov al,si+3 mov si+4,al mov al,di+3 mov di+4,al dec si dec di loop lp2 ret；-disp: mov si,offset var1 ；顯示子程序 mov di,offset var2 mov cx,0004hdir: mov al,si out 60h,al m

13、ov al,di out 61h,al call time inc si inc di loop dir ret；-time: push ax ；延時(shí)程序 push cx mov cx,0002htime1: mov ax,0300htime2: dec ax jnz time2 loop time1 pop cx pop ax ret；-sttk: call disp ；放鍵測(cè)試程序 mov al,00h out 60h,al in al,62h and al,60h cmp al,60h jnz sttk jmp sttcode ends end start 3.程序一3.1題目：實(shí)現(xiàn)：a

14、)定義鍵盤按鍵，5個(gè)為數(shù)字鍵3、4、5、6、7，7個(gè)功能鍵：減號(hào)，除號(hào)，等號(hào)；b)可進(jìn)行三位8進(jìn)制減法運(yùn)算；c)可進(jìn)行兩位10進(jìn)制除法運(yùn)算。3.2源程序：stack segment stack dw 64 dup (?)stack endsdata segmentvar1 db 07h,0bh,0dh,0eh ；數(shù)碼管位碼var2 db 3fh,3fh,3fh,3fh,3fhvar3 db 00h,00h,00h,00h,00h ；當(dāng)前值var4 db 00h,00h,00h,00h,00h ；保存值tabl db 3fh,06h,5bh,4fh,66h,6dh,7dh,07h db 7fh,

15、6fh,77h,7ch,39h,5eh,79h,71hdata endscode segment assume cs:code,ds:datastart: mov ax,data mov ds,ax mov al,88h out 63h,al ；8255a初始化 mov bx,0000h ；bx清零stt: mov al,00h ；鍵盤測(cè)試 out 60h,alnext: in al,62h and al,60h cmp al,60h jnz keyabc call disp ；調(diào)用顯示程序 jmp stt；-keyabc: call time ；延時(shí),去抖動(dòng) in al,62h and al

16、,60h cmp al,60h jnz key jmp sttkey: mov al,0feh ；鍵盤掃描識(shí)別 out 60h,al in al,62h test al,40h jnz key_4 call keyden jmp sttkkey_4: test al,20h jnz key_jian call key4 jmp sttkkey_jian:mov al,0fdh out 60h,al in al,62h test al,40h jnz key_5 call keyjian jmp sttkkey_5: test al,20h jnz key_chu call key5 jmp s

17、ttkkey_chu: mov al,0fbh out 60h,al in al,62h test al,40h jnz key_6 call keychu jmp sttkkey_6: test al,20h jnz key_3 call key6 jmp sttkkey_3: mov al,0f7h out 60h,al in al,62h test al,40h jnz key_7 call key3 jmp sttkkey_7: test al,20h jnz key_71 call key7key_71: jmp sttk；-key3: cmp bh,00h ；按鍵3處理子程序 jz

18、 key3_1 ；未按過符號(hào)鍵,不清零 call clear ；已按過符號(hào)鍵,清零key3_1: call lp1 ；低4位字節(jié)前移 mov al,03h mov di+4,al push bx ；保護(hù)bx lea bx,tabl xlat tabl mov si+4,al call disp ；顯示 pop bx ret ；返回；-key4: cmp bh,00h ；按鍵4處理子程序 jz key4_1 call clearkey4_1: call lp1 mov al,04h mov di+4,al push bx lea bx,tabl xlat tabl mov si+4,al cal

19、l disp pop bx ret；-key5: cmp bh,00h ；按鍵5處理子程序 jz key5_1 call clearkey5_1: call lp1 mov al,05h mov di+4,al push bx lea bx,tabl xlat tabl mov si+4,al call disp pop bx ret；-key6: cmp bh,00h ；按鍵6處理子程序 jz key6_1 call clearkey6_1: call lp1 mov al,06h mov di+4,al push bx lea bx,tabl xlat tabl mov si+4,al c

20、all disp pop bx ret；-key7: cmp bh,00h ；按鍵7處理子程序 jz key7_1 call clearkey7_1: call lp1 mov al,07h mov di+4,al push bx lea bx,tabl xlat tabl mov si+4,al call disp pop bx ret；.keyjian: cmp bh,00h ；按鍵-處理子程序 jnz keyjian_1 call lp3keyjian_1: cmp bx,0101h ret；-keychu: cmp bh,00h ；按鍵/處理子程序 jnz keychu_1 call

21、lp3keychu_1: cmp bx,0102h ret；-keyden: cmp bl,00h ；按鍵=處理子程序 jnz keyden_1 call clear call dispkeyden_1: mov bh,01h cmp bl,01h ；是-號(hào)？ jz k1 ；進(jìn)行減法運(yùn)算 cmp bl,02h ；是/號(hào)？ jz k2 ；進(jìn)行除法運(yùn)算stte: retk1: call jian jmp sttek2: call chu jmp stte ；-jian: mov si,offset var3 ；三位8進(jìn)制減法子程序 mov di,offset var4 clc mov cx,000

22、4h jian_1: mov al,di sbb al,si cmp al,08h jb b1 and al,07h stc jmp b2b1: clcb2: mov di,al inc si inc di loop jian_1 call change call disp mov bl,00h ；運(yùn)算完畢符號(hào)位清零 ret；-chu: mov si,offset var3 ；兩位10進(jìn)制除法子程序 mov di,offset var4 clc mov dl,di ；調(diào)整var4，10進(jìn)制轉(zhuǎn)換成16進(jìn)制，保存在dx mov dh,00h mov bx,10 mov al,di+1 and ax

23、,000fh push dx mul bx pop dx add dx,ax mov bx,100 mov al,di+2 and ax,000fh push dx mul bx pop dx add dx,ax mov bx,1000 mov al,di+3 and ax,000fh push dx mul bx pop dx add dx,ax push dx mov cl,si ；調(diào)整var3，10進(jìn)制轉(zhuǎn)換成16進(jìn)制，保存在cx mov ch,00h mov al,si+1 and ax,000fh mov bx,10 mul bx add cx,ax mov al,si+2 and a

24、x,000fh mov bx,100 mul bx add cx,ax mov al,si+3 and ax,000fh mov bx,1000 mul bx add cx,ax pop ax ；以16進(jìn)制進(jìn)行除法運(yùn)算 mov dx,0000h mov ch,00h div cx ；調(diào)整結(jié)果為10進(jìn)制 mov cx,10 mov dx,0000h div cx mov di,dl mov dx,0000h div cx mov di+1, dl mov dx,0000h div cx mov di+2,dl mov dx,0000h div cx mov di+3,dl call change

25、 call disp mov bl, 00h ret；-lp1: mov cx,0004h ；數(shù)據(jù)移位保存子程序（前移四位） mov si,offset var2 mov di,offset var3lp2: mov al,si+3 mov si+4,al mov al,di+3 mov di+4,al dec si dec di loop lp2 ret；-lp3: mov cx,0004h ；保存上一次數(shù)據(jù)子程序 mov si,offset var3 mov di,offset var4lp4: mov al,si mov di,al inc si inc di loop lp4 ret；

26、.change: mov si,offset var2 mov di,offset var4 mov bx,offset tabl mov cx,0004hcomp0: mov al,di xlat tabl mov si,al inc si inc di loop comp0 ret；-disp: mov si,offset var1 ；顯示子程序 mov di,offset var2 mov dl,di+3 cmp dl,3fh jnz dir3 mov dl,di+2 cmp dl,3fh jnz dir2 mov dl,di+1 cmp dl,3fh jnz dir1 jmp dir0dir3: mov cx,0004h jmp dirdir2: mov cx,0003h jmp dirdir1: mov cx,0002h jmp dirdir0: mov cx,0001hdir: mov al,si