H SI ；程式开始
3: CHECK:
4: LODSB ；取资料,AH永远为０
5: MOV BX,AX ；利用BX间接定址
6: INC WORD PTR RECORD[BX]
7: LOOP CHECK
8: STORE:
9: MOV SI,OFFSET RECORD+512；指向最
；后记录
10: MOV BP,OFFSET RECORD ；供检查
11: POP DI ；资料贮存处
12: STORE1:
13: CMP SI,BP ；查是否完毕？
14: JE RECEND ；完成
15: DEC SI ；向上取
16: DEC SI
17: MOV CX,[SI] ；取记录值
18: JCXZ STORE1 ；无记录，重取
19: MOV AX,SI ；当前之位址
20: SUB AX,BP ；差值
21: SHR AX,1 ；原有值
22: STORE2:
23: REP STOSW ；重新载入
24: JMP
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