题目内容

Questions 41-45
&8226;Read the memo and advertisement below.
&8226;Complete the apartment location information form.
&8226;Write a word or phrase (in CAPITAL LETTERS) or a number on lines 41-45 on your Answer Sheet.
MEMO
To: John
From: Ben
Date: 8.5. 2008
Message:
I came across this advertisement in HOUSING MAGAZINE and thought the apartments might be suitable for our staff. Please fill in the Apartment Location Information Form. and pass it on to Mr Hu, the Purchasing Manager.
Lucky Apartment Building
* Located on Lucky Street, three miles from the city centre, 15 minutes' drive to the airport.
* Equipped with IDD lines.
* Outdoor pool, tennis court.
* Unit size from 120 m2.
CONTACT US TODAY FOR MORE DETAILS
Tel: 8881969
Fax: 8881968
Apartment Location Information Form
STREET: (41) ______
UNIT SIZE: (42) ______
DISTANCE FROM CITY CENTRE: (43) ______
COMMUNICATIONS: (44) ______
LEISURE FACILITIES: Outdoor pool, (45) ______
CONTACT: Tel: 8881969, Fax: 8881968
(41)

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请编制程序,其功能是:内存中连续存放着16个二进制字节数,在原16个数的第4和第5个数之间插入00H,在原16个数的第8和第9个数之间插入55H,在原16个数的第12和第13个数之间插入AAH,在原16个数的最后加入FFH。将按上述方法插入4个字节数后得到的20个字节数存入内存中。
例如:
内存中有:10H,20H,30H,40H,50H,…,8FH(共16个字节)
结果为: 10H,20H,30H,40H,00H,50H,…,8FH,FFH(共20个字节)
部分程序已给出,其中原始数据由过程LOAD从文件INPUT1.DAT中读入SOURCE开始的内存单元中。运算结果要求从 RESULT开始存放,由过程SAVE保存到文件OUTPUT1.DAT中。
请填空BEGIN和END之间已经给出的源程序使其完整,需填空处已经用横线标出,每个空白一般只需一条指令,也可以填入功能相当的多条指令,或删去BEGIN和END之间原有的代码并自行编程来完成所要求的功能。
对程序必须进行汇编,并与IO.OBJ链接产生可执行文件,最终运行程序产生结果。调试中若发现整个程序中存在错误之处,请加以修改。
[试题程序]
EXTRN LOAD:FAR,SAVE:FAR
N EQU 16
STAC SEGMENT STACK
DB 128 DUP ()
STAC ENDS
DATA SEGMENT
SOURCE DB N DUP ()
INDATA DB 0FFH,0AAH,55H,00H
RESULT DB N+4 DUP(0)
NAME0 DB 'INPUT1.DAT',0
NAME1 DB 'OUTPUT1.DAT',0
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA,SS:STAC
START PROC FAR
PUSH DS
XOR AX,AX
PUSH AX
MOV AX,DATA
MOV DS,AX
EA DX,SOURCE ; 数据区起始地址
OV CX,N ; 字节数
ALL LOAD ; 从'INPUT1.DAT'中读取数据
******** BEGIN ********
(1)
OV DI,0
OV CX,4
OV BX,4
CHAN: (2)
OV RESULT[DI],AH
(3)
NC DI
EC CX
Z INSER1
MP CHAN
INSER1: PUSH SI
MOV SI,BX
MOV AX,WORD PTR INDATA[SI-2]
MOV RESULT [DI], (4)
DEC BX
JZ (5)
MOV CX,04H
(6)
INC (7)
JMP CHAN
EXIT: &

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