微機(jī)原理及接口技術(shù)a模塊實(shí)驗(yàn)指導(dǎo)書-資料下載頁
2024-10-22 08:24本頁面
【導(dǎo)讀】注意：數(shù)碼管為共陰極接發(fā)，段碼為“1”，位碼為“0”時(shí)數(shù)碼管亮。用鍵盤演奏簡單樂曲。
【正文】 bl,9 jle d_proce cmp bl,11 。begin je set_be cmp bl,12 。clear je clear1 cmp bl,10 je stop cmp bl,13 je s_cl 19 jmp again clear1: call clear mov dx,209h in al,dx or al,011h out dx,al jmp again set_be: mov dx,209h in al,dx and al,0feh out dx,al mov be,1 jmp again stop: mov dx,209h in al,dx or al,3 out dx,al mov sto,1 jmp again1 d_proce: call bshift mov t1+5,bl jmp again s_cl: mov clock,1 mov dx,209h in al,dx or al,3 out dx,al jmp again1 key proc mov dx,203h mov al,10001001b 。c_in,b_out out dx,al mov f,0 mov dx,201h mov al,0 out dx,al mov dx,202h in al,dx and al,0fh cmp al,0fh 20 je k_exit mov cx,3000 loop $ 。10ms in al,dx and al,0fh push ax mov dx,203h mov al,10000010b 。b_in,c_out out dx,al pop ax mov bl,al mov dx,202h out dx,al mov dx,201h in al,dx and al,3fh mov bh,al lea si,tablek mov cx,23 mov ah,0 nk: cmp bx,[si] je found inc ah add si,2 loop nk found: mov al,0 mov dx,202h out dx,al mov dx,201h in al,dx and al,3fh cmp al,3fh jne found mov cx,3000 loop $ mov f,1 mov bl,ah k_exit: ret key endp led proc 21 lea si,t1 mov ah,0dfh l_re1: mov al,[si] lea bx,table xlat mov dx,200h out dx,al mov al,ah mov dx,201h out dx,al mov cx,400 。1ms loop $ inc si ror ah,1 jc l_re1 mov al,0 mov dx,200h out dx,al ret led endp bshift proc mov cx,5 lea si,t1 s: mov al,byte ptr[si+1] mov byte ptr[si],al inc si loop s ret bshift endp clear proc lea si,t1 mov al,0 mov cx,count ca: mov [si],al inc si loop ca ret clear endp time_int proc push cx push ax 22 cmp be,1 jne exit_time2 jmp fff exit_time2:jmp exit_time fff: cmp clock,1 jl inc_s0 inc clock1 cmp clock1,100 jl exit_time0 jmp rr exit_time0: jmp exit_time rr: mov clock1,0 inc_s0: inc s0 cmp s0,10 jl exit_time3 jmp ww exit_time3:jmp exit_time ww: mov s0,0 inc s1 cmp clock,1 je tt cmp s1,10 jl exit_time jmp tt1 tt: cmp s1,6 jl exit_time tt1: mov s1,0 inc m0 cmp m0,10 jl exit_time mov m0,0 inc m1 cmp clock,1 je ee cmp m1,10 jl exit_time jmp ee1 ee: cmp m1,6 jl exit_time ee1: mov m1,0 inc t0 cmp t0,10 23 jl exit_time mov t0,0 inc t1 exit_time: pop ax pop cx iret time_int endp code ends end start 常波 計(jì)算機(jī)硬件實(shí)驗(yàn)室 2020913
公司管理相關(guān)推薦
鄂ICP備17016276號(hào)-1