显示方式的改变
A>DEBUG CGA.COM<CR>
65CF:0100 31C0 XOR AX,AX
65CF:0102 8ED8 MOV DS,AX
65CF:0104 A01004 MOV AL,
[0 4 1 0 ]
65CF:0107 24CF AND AL,CF
65CF:0109 0C20 OR AL,20
65CF:010B A21004 MOV [0410],AL
65CF:010E B80300 MOV AX,0003
65CF:0111 CD10 INT 10
65CF:0113 CD20 INT 20
A>DEBUG NCGACOM<CR>
65CF:0100 31C0 XOR AX,AX
65CF:0102 8ED8 MOV DS,AX
65CF:0104 A01004 MOV AL,
[0410]
65CF:0107 24CF AND AL,CF
65CF:0109 0C30 OR AL,30
65CF:010B A21004 MOV [0410],AL
65CF:010E B400 MOV AH,00
65CF:0110 B007 MOV AL,07
65CF:0112 CD10 INT 10
65CF:0114 CD20 INT 20
(河北 袁津生)