1 ; multi-segment executable file template.
2
3 data segment
4 STRING DB 'SPACE EXPLORERS INC'
5 PRLINE DB 'SPACE EXPLORERS INCE'
6 LAST DB ' '
7 same DB 'MATCH$'
8 nsame DB 'NO MATCH$'
9 ends
10
11 stack segment
12 dw 128 dup(0)
13 ends
14
15 code segment
16 start:
17 ; set segment registers:
18 mov ax, data
19 mov ds, ax
20 mov es, ax
21
22 ; add your code here
23 mov cx,PRLINE-STRING ;先判断长度，长度不相等直接不匹配
24 cmp cx,LAST-PRLINE
25 jnz NEQUAL
26
27 lea si,STRING ;长度相等则逐个匹配
28 mov di,offset PRLINE
29 cld
30 rep cmpsb
31 jz EQUAL
32 jnz NEQUAL
33
34 EQUAL: ;输出结果
35 lea dx,same
36 jmp NEXT
37 NEQUAL:
38 lea dx,nsame
39 NEXT:
40 mov ah, 9
41 int 21h ; output string at ds:dx
42
43 ; wait for any key....
44 mov ah, 1
45 int 21h
46
47 mov ax, 4c00h ; exit to operating system.
48 int 21h
49 ends
50
51 end start ; set entry point and stop the assembler.
