微機(jī)計算機(jī)原理及接口技術(shù)實驗指導(dǎo)書帶程序(存儲版)
【正文】 inc si loop r3 pop si pop dx pop bx ret printout endp code ends end main 實驗九 8255， 8253 設(shè)計 dseg segment music dw 250,2,330,2,440,16,440,2,494,4,587,2,440,4 dw 440,2,392,2,330,2,294,6,440,8,294,28,330,4 dw 440,16,250,4,330,2,494,8,440,2,440,4,392,2,330,2 dw 294,4 ,330,2,392,2,330,16,250,4,262,4,220,4,262,4 dw 330,4,440,6,392,2,330,4,294,8,250,2,294,2,220,2,195,2 dw 220,16,1 dseg ends cseg segment assume cs:cseg,ds:dseg main proc far 27 start: mov ax,dseg mov ds,ax mov es,ax mov si,offset music circle: mov bx,[si] cmp bx,1 je exit1 call sound call delay jmp circle exit1: in al,61h and al,0fch out 61h,al mov ax,04c00h int 21h main endp sound proc near jishu: mov al,0b6h out 43h,al mov ax,034deh mov dx,12h mov cx,[si] div cx out 42h,al mov al,ah out 42h,al sounding: in al,61h or al,3 out 61h,al return1:inc si inc si ret sound endp delay proc near mov dx,[si] 28 lo1: mov bx,350 lo2: mov cx,0 delay1: loop delay1 dec bx jnz lo2 dec dx jnz lo1 return2: inc si inc si ret delay endp cseg ends end main 實驗十 時鐘設(shè)計 dseg segment oldadd dw 0,0 dseg ends sseg segment db 100 dup(?) sseg ends cseg segment main proc far assume cs:cseg,ds:dseg,ss:sseg s1: push ds sub ax,ax push ax mov ah,035h mov al,01ch int 21h mov oldadd,bx mov [oldadd+2],es mov ah,025h mov dx,seg start mov ds,dx 29 mov dx,offset start mov al,01ch int 21h mov dx,offset s2 int 27h start: cli mov ax,0b800h mov ds,ax mov si,120 mov ah,02ah int 21h mov al,dh call disp mov al,dl call disp mov ah,02ch int 21h mov al,ch call disp mov al,cl call disp mov al,dh call disp mov al,dl call disp sti iret s2: main endp disp proc push bx mov ah,0 mov bl,10 div bl add al,48 30 mov [si],al inc si mov al,07ch mov [si],al inc si add ah,48 mov [si],ah inc si mov ah,07ch mov [si],ah inc si mov ah,33 mov [si],ah inc si mov ah,07ch mov [si],ah inc si pop bx ret disp endp cseg ends end main 。039。139。,39。, 39。,39。print the sorted array next8:lea di,buffer mov bl,20 next9:mov cx,3 mov ax,[di] call printout inc di inc di mov ah,2 mov dl,32 int 21h dec bl jnz next9 mov ax,04c00h int 21h main endp printout proc near 。 15 mov ah,2 int 21h int 21h jmp s5 s4: mov dl,39。 jg s3 mov dl,39。 jl s4 cmp al,39。駐留內(nèi)存：用 DOS 27H 功能調(diào)用，將自己編寫的 顯示時間的程序 駐留內(nèi)存。當(dāng)然要有旋律的聲音，還需加上節(jié)奏，編一個 延時程序，根據(jù)不同節(jié)奏，延時不同的時間。 在屏幕上
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