微機(jī)原理課程設(shè)計(jì)報(bào)告書(shū)(編輯修改稿)
2024-08-30 12:43 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 ,0ff21h out dx,al rol al,01h mov ah,al nop nop nop nop nop nop mov dx,0ff23h in al,dx not al nop nop and al,0fh jnz key2 inc bl loop key1 jmp nkeykey2 : test al,01h je key3 mov al,00h jmp key6key3: test al,02h je key4 mov al,08h jmp key6key4: test al,04h je key5 mov al,10h jmp key6key5: test al,08h je nkey mov al,18hkey6: add al,bl cmp al,10h jnc fkey mov bl,al mov bh,0h mov si,offset data2 mov al,[bx+si] retCODE SEGMENT 。 ASSUME CS:CODEfor8251: call t8253 mov al,65h out dx,al mov dx,03f9h mov al,25h out dx,al mov dx,03f9h mov al,65h out dx,al mov dx,03f9h mov al,4eh160
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