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[工學(xué)]北郵微機(jī)原理硬件實(shí)驗(yàn)報(bào)告及代碼-wenkub

2023-04-29 04:02:26 本頁面
 

【正文】 TPUT DELAY LOOP BLINK JMP MAINSTOP: MOV AL,0FFH OUT DX,AL MOV AH,4CH INT 21HCOD ENDS END START四、實(shí)驗(yàn)總結(jié) 通過本次實(shí)驗(yàn),我了解并熟悉了實(shí)驗(yàn)臺的結(jié)構(gòu)、功能、使用方法;掌握讀寫IO端口的基本方法;學(xué)會使用Debug及編寫匯編程序。IF BIT7=0 THEN STOP MOV AL,AH AND AL,40H CMP AL,40H JNZ BLINK。MOV AL,40H。FOR INPUT MOV AH,AL。FOR OUTER LOOP OUTER: MOV CX,07FF0H。BIT5/BIT4 IS SPEED CTRL ROR AL,1 ROR AL,1 ROR AL,1 ROR AL,1 。2 leds cross S7 db 0FFH, 7EH, 3CH, 18H, 00H, 18H, 3CH, 7EH 。1 led L to R skip 2 S3 db 0FEH,0FEH,0FBH,0FBH,0EFH,0EFH,0BFH,0BFH 。① 16種燈型(紅色點(diǎn)亮/白色熄滅),由SW0~SW3控制(SW3取反)。 2 . 通過實(shí)驗(yàn)掌握直接使用Debug 的I、O 命令來讀寫IO端口。 3 . 學(xué)會Debug 的使用及編寫匯編程序二、實(shí)驗(yàn)內(nèi)容及要求1 .學(xué)習(xí)使用 Debug 命令,并用 I、O 命令直接對端口進(jìn)行讀寫操作, 2 .用匯編語言編寫跑馬燈程序。S0S8S1S9S2S10S3S11S4S12S5S13S6S14S7S15② 4種速度,由SW4~SW5控制SW5 SW4速度計(jì)數(shù)周期0 01倍速1*FFH*7FFH0 11/2倍速2*FFH*7FFH1 01/4倍速4*FFH*7FFH1 11/6倍速6*FFH*7FFH③ 暫停,由SW6控制(執(zhí)行程序前必須置SW6=1)SW6=1 運(yùn)行SW6=0 暫停④ 退出,由SW7控制(執(zhí)行程序前必須置SW7=1)SW7=1 運(yùn)行SW7=0 退出(返回DOS)流程圖源代碼DAT SEGMENT S0 db 7FH,0BFH,0DFH,0EFH,0F7H,0FBH,0FDH,0FEH 。1 led R to L skip 2 S4 db 7FH, 3FH, 1FH, 0FH, 07H, 03H, 01H, 00H 。led curtainDAT ENDSSTA SEGMENT STACK dw 100 dup(?)STA ENDS COD SEGMENTASSUME CS:COD,DS:DAT,SS:STADELAY PROC PUSH CX IN AL,DX。OR AL,0FH。FOR INNER LOOPINNER: NOP LOOP INNER DEC BX JNZ OUTER POP CX RETDELAY ENDPSTART: MOV AX,DAT MOV DS,AX MOV AX,STA MOV SS,AX MOV DX,0E8E0H MAIN: 。AH IS A COPY OF ALSHAPE0: MOV AL,AH AND AL,07H CMP AL,00H JNZ SHAPE1 MOV SI,OFFSET S0 JMP SHAPEOKSHAPE1: MOV AL,AH AND AL,07H CMP AL,01H JNZ SHAPE2 MOV SI,OFFSET S1 JMP SHAPEOKSHAPE2: MOV AL,AH AND AL,07H CMP AL,02H JNZ SHAPE3 MOV SI,OFFSET S2 JMP SHAPEOKSHAPE3: MOV AL,AH AND AL,07H CMP AL,03H JNZ SHAPE4 MOV SI,OFFSET S3 JMP SHAPEOKSHAPE4: MOV AL,AH AND AL,07H CMP AL,04H JNZ SHAPE5 MOV SI,OFFSET S4 JMP SHAPEOKSHAPE5: MOV AL,AH AND AL,07H CMP AL,05H JNZ SHAPE6 MOV SI,OFFSET S5 JMP SHAPEOKSHAPE6: MOV AL,AH AND AL,07H CMP AL,06H JNZ SHAPE7 MOV SI,OFFSET S6 JMP SHAPEOKSHAPE7: MOV SI,OFFSET S7 。FOR DEBUG IN AL,DX。IF BIT6=0 THEN PAUSE MOV AL,AH AND AL,08H CMP AL,08H JZ GETNOT。 本次實(shí)驗(yàn)中的代碼,從編寫,到修改,到最后定稿,經(jīng)歷的4個版本,每個版本都較前一次有質(zhì)的飛躍。如果完全使用8個撥碼開關(guān)控制,能在一個程序中實(shí)現(xiàn)256種燈型:只需占用數(shù)據(jù)段的256*8=2k字節(jié),代碼段幾乎不用改動。二、實(shí)驗(yàn)任務(wù)及內(nèi)容在實(shí)驗(yàn)一的基礎(chǔ)上學(xué)習(xí) PIO 芯片(8255 )編程應(yīng)用,熟悉平臺的主要內(nèi)容。AH IS A COPY OF AL AND AH,80H CMP AH,80H JNZ STOP。1 CALL DELAY SHOW 04H,c0 。0 CALL DELAY JMP DISPLAYLZA: SHOW 01H,c2 。7 CALL DELAY SHOW 10H,c7 。①4種速度,由SW4~SW5控制SW5 SW4速度計(jì)數(shù)周期0 01倍速1*1FH0 11/2倍速2*1FH1 01/4倍速4*1FH1 11/6倍速6*1FH②暫停,由SW6控制(執(zhí)行程序前必須置SW6=1)SW6=1 運(yùn)行SW6=0 暫停③退出,由SW7控制(執(zhí)行程序前必須置SW7=1)SW7=1 運(yùn)行SW7=0 退出(返回DOS)流程圖源代碼DAT SEGMENT AddrA DW 0E800H AddrB DW 0E801H AddrC DW 0E802H AddrCTL DW 0E803H MESG DB 0,0,0,0,0,0,3DH,0DCH,8CH,8CH,0EDH,0 POINT DW MESGDAT ENDSSTA SEGMENT STACK DW 100H DUP (?)STA ENDS COD SEGMENT ASSUME CS:COD,DS:DAT,SS:STA SHOW MACRO X,Y MOV AL,X MOV DX,AddrB OUT DX,AL MOV AL,Y MOV DX,AddrA OUT DX,AL ENDM START: MOV AX,DAT MOV DS,AX MOV AX,STA MOV SS,AX MOV AL,80H。AH IS A COPY OF AL AND AL,80H CMP AL,80H JNZ STOP。按鍵鍵盤上,C鍵清除所有輸入,D鍵清除最近一個輸入,E鍵退出程序,返回DOS。STACK SEGMENT STACK 39。 MAIN PROC FAR MOV AX,DATA MOV DS,AX MOV ES,AX MOV DX,0E823H MOV AL,16H OUT DX,ALCLEAR:XOR DX,DX 。Digits number decrease one MOV AL,0 MOV SI,DX MOV ID[SI],AL NEXT: CALL DISP 。No key pressed 。Usually this is not going to 。reserve for future use. CMP DI,12 JE CLEAR 。Key pressed! CMP AL,0FFH 。Yes:begin to judge the key. MOV AL,KEY[DI] MOV SI,DX MOV ID[SI],AL 。READ PROC NEAR 。Keep info in AL for SCASB POP DX RET READ ENDP。Control which LED on DEC DX ROL AH,1 INC SI CALL DELAY 。Outer loopLOP1: MOV CX,00H 。程序設(shè)計(jì)時,采用結(jié)構(gòu)程序化方法自頂向下設(shè)計(jì),使用結(jié)構(gòu)程序化的思路,編寫多個子程序和宏,互相嵌套組合,實(shí)現(xiàn)復(fù)雜的功能。根據(jù)計(jì)數(shù)器的性質(zhì),計(jì)數(shù)值音符與計(jì)數(shù)值對照(PDF中給出表格有誤)1(do)2(re)3(mi)4(fa)5(so)6(la)7(si)低音1221089791817264中音61544845403632高音302724222018162.?dāng)U展部分利用小鍵盤實(shí)現(xiàn)彈琴功能,并顯示彈奏的樂譜。數(shù)碼管第一位顯示當(dāng)前播放的音符(1~7,不區(qū)分高中低音)。SongBooK XiaoBuWuQu BOK
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