写盘保护开关

摘要

＜正＞ mov ah,25hmov al,intnummov dx,offset addr2int 21hendmint 10h macro hummov ah,nummov bh,00hint 10hendmnewlch proc far;扩充键盘硬断服务程序push axpush dspush cspop dsmov ah,02hint 16hand al,Och;ctrl+alt 键jz exitlchin al,60h;esc 扫描码