d:\asm>type lab4.asm
assume cs:code
code segment
mov ax,0020h
mov ds,ax
mov bx,0
mov cx,64
s: mov [bx],bl
inc bx
loop s
mov ax,4c00h
int 21h
code ends
end
d:\asm>
d:\asm>debug lab4.exe
-d 20:0 3f
0020:0000 00 01 02 03 04 05 06 07-08 09 0A 0B 0C 0D 0E 0F ................
0020:0010 10 11 12 13 14 15 16 17-18 19 1A 1B 1C 1D 1E 1F ................
0020:0020 20 21 22 23 24 25 26 27-28 29 2A 2B 2C 2D 2E 2F !"#$%&'()*+,-./
0020:0030 30 31 32 33 34 35 36 37-38 39 3A 3B 3C 3D 3E 3F 0123456789:;<=>?
-
运行结果：
Program terminated normally
-d 0020:0 3f
0020:0000 00 01 02 03 04 05 06 07-08 09 0A 0B 0C 0D 0E 0F ................
0020:0010 10 11 12 13 14 15 16 17-18 19 1A 1B 1C 1D 1E 1F ................
0020:0020 20 21 22 23 24 25 26 27-28 29 2A 2B 2C 2D 2E 2F !"#$%&'()*+,-./
0020:0030 30 31 32 33 34 35 36 37-38 39 3A 3B 3C 3D 3E 3F 0123456789:;<=>?
-
-
个人认为， bx最好先初始化。 |
