北京交通大学微机原理与接口技术上机作业.docx

1、北京交通大学微机原理与接口技术上机作业微机原理与接口技术上机作业4-18Microsoft (R) Macro Assembler Version 6.11 10/23/12 16:33:54M18.ASM Page 1 - 1 0000 DATA SEGMENT 0000 05 0A 0F 14 19 MBUF DB 5,10,15,20,25 0005 = 0005 COUNT EQU $-MBUF ORG 0020H 0020 0005 NBUF DB COUNT DUP(0) 00 0025 DATA ENDS 0000 STACK1 SEGMENT STACK 0000 0014 D

2、W 20 DUP(?) 0000 0028 STACK1 ENDS 0000 CODE SEGMENT ASSUME CS:CODE,DS:DATA,SS:STACK1 0000 B8 - R START: MOV AX,DATA 0003 8E D8 MOV DS,AX 0005 BB 0000 R MOV BX,OFFSET MBUF 0008 81 C3 0004 ADD BX,COUNT-1 000C BE 0020 R MOV SI,OFFSET NBUF 000F B9 0005 MOV CX,COUNT 0012 8A 07 SAVE: MOV AL,BX 0014 88 04

3、MOV SI,AL 0016 4B DEC BX 0017 46 INC SI 0018 49 DEC CX 0019 75 F7 JNZ SAVE 001B B4 4C MOV AH,4CH 001D CD 21 INT 21H 001F CODE ENDS END START Microsoft (R) Macro Assembler Version 6.11 10/23/12 16:33:54M18.ASM Symbols 2 - 1Segments and Groups: N a m e Size Length Align Combine ClassCODE . . . . . . .

4、 . . . . . . . 16 Bit 001F Para Private DATA . . . . . . . . . . . . . . 16 Bit 0025 Para Private STACK1 . . . . . . . . . . . . . 16 Bit 0028 Para Stack Symbols: N a m e Type Value AttrCOUNT . . . . . . . . . . . . . Number 0005h MBUF . . . . . . . . . . . . . . Byte 0000 DATA NBUF . . . . . . . .

5、. . . . . . Byte 0020 DATA SAVE . . . . . . . . . . . . . . L Near 0012 CODE START . . . . . . . . . . . . . L Near 0000 CODE 0 Warnings 0 Errors4-20Microsoft (R) Macro Assembler Version 6.11 10/23/12 16:38:04M20.ASM Page 1 - 1 0000 DATA SEGMENT 0000 F7 F8 F9 FA FB 01 RAMDATA DB -9,-8,-7,-6,-5,1,2,3

6、,4,5,6,7,8,9 02 03 04 05 06 07 08 09 000E = 000E COUNT EQU $-RAMDATA 000E 000E POSBUF DB COUNT DUP(0) 00 001C 000E NEGBUF DB COUNT DUP(0) 00 002A 00 POSNUM DB 0 002B 00 NEGNUM DB 0 002C DATA ENDS 0000 STACK1 SEGMENT STACK 0000 0014 DW 20 DUP(?) 0000 0028 STACK1 ENDS 0000 CODE SEGMENT ASSUME CS:CODE,

7、DS:DATA,SS:STACK1 0000 B8 - R START:MOV AX,DATA 0003 8E D8 MOV DS,AX 0005 8D 1E 0000 R LEA BX,RAMDATA 0009 BE 000E R MOV SI,OFFSET POSBUF 000C BF 001C R MOV DI,OFFSET NEGBUF 000F B9 000E MOV CX,COUNT 0012 8A 07 LOP: MOV AL,BX 0014 A8 80 TEST AL,80H 0016 78 06 JS NEGATIVE 0018 3C 00 CMP AL,0 001A 7F

8、0B JG POSITIVE 001C EB 12 JMP GOLOP 001E 88 05 NEGATIVE:MOV DI,AL 0020 47 INC DI 0021 FE 06 002B R INC NEGNUM 0025 EB 09 JMP GOLOP 0027 88 04 POSITIVE:MOV SI,AL 0029 46 INC SI 002A FE 06 002A R INC POSNUM 002E EB 00 JMP GOLOP 0030 43 GOLOP:INC BX 0031 49 DEC CX 0032 75 DE JNZ LOP 0034 B4 4C MOV AH,4

9、CH 0036 CD 21 INT 21H 0038 CODE ENDS END START Microsoft (R) Macro Assembler Version 6.11 10/23/12 16:38:04M20.ASM Symbols 2 - 1Segments and Groups: N a m e Size Length Align Combine ClassCODE . . . . . . . . . . . . . . 16 Bit 0038 Para Private DATA . . . . . . . . . . . . . . 16 Bit 002C Para Priv

10、ate STACK1 . . . . . . . . . . . . . 16 Bit 0028 Para Stack Symbols: N a m e Type Value AttrCOUNT . . . . . . . . . . . . . Number 000Eh GOLOP . . . . . . . . . . . . . L Near 0030 CODE LOP . . . . . . . . . . . . . . L Near 0012 CODE NEGATIVE . . . . . . . . . . . . L Near 001E CODE NEGBUF . . . .

11、. . . . . . . . . Byte 001C DATA NEGNUM . . . . . . . . . . . . . Byte 002B DATA POSBUF . . . . . . . . . . . . . Byte 000E DATA POSITIVE . . . . . . . . . . . . L Near 0027 CODE POSNUM . . . . . . . . . . . . . Byte 002A DATA RAMDATA . . . . . . . . . . . . Byte 0000 DATA START . . . . . . . . . .

12、. . . L Near 0000 CODE 0 Warnings 0 Errors 4-21Microsoft (R) Macro Assembler Version 6.11 10/23/12 16:49:58M21.ASM Page 1 - 1 0000 DATA SEGMENT 0000 EE 05 E7 0A F9 1E BLOCK DB -18,5,-25,10,-7,30,29,-41,22,14 1D D7 16 0E 000A = 000A COUNT EQU $-BLOCK 000A 00 MAX DB 0 000B DATA ENDS 0000 STACK1 SEGMEN

13、T STACK 0000 0014 DW 20 DUP(?) 0000 0028 STACK1 ENDS 0000 CODE SEGMENT ASSUME CS:CODE,DS:DATA,SS:STACK1 0000 B8 - R START:MOV AX,DATA 0003 8E D8 MOV DS,AX ;- 0005 8D 1E 0000 R LEA BX,BLOCK 0009 B9 000A MOV CX,COUNT 000C 8A 07 LOP: MOV AL,BX 000E A8 80 TEST AL,80H 0010 78 02 JS LOP1 0012 EB 06 JMP LO

14、P2 0014 2C 01 LOP1:SUB AL,1 0016 F6 D0 NOT AL 0018 24 7F AND AL,7FH 001A 3A 06 000A R LOP2:CMP AL,MAX 001E 7F 02 JG LOP3 0020 EB 04 JMP LOP4 0022 86 06 000A R LOP3: XCHG MAX,AL 0026 43 LOP4:INC BX 0027 49 DEC CX 0028 75 E2 JNZ LOP ;- 002A B4 4C MOV AH,4CH 002C CD 21 INT 21H 002E CODE ENDS END START

15、Microsoft (R) Macro Assembler Version 6.11 10/23/12 16:49:58M21.ASM Symbols 2 - 1Segments and Groups: N a m e Size Length Align Combine ClassCODE . . . . . . . . . . . . . . 16 Bit 002E Para Private DATA . . . . . . . . . . . . . . 16 Bit 000B Para Private STACK1 . . . . . . . . . . . . . 16 Bit 002

16、8 Para Stack Symbols: N a m e Type Value AttrBLOCK . . . . . . . . . . . . . Byte 0000 DATA COUNT . . . . . . . . . . . . . Number 000Ah LOP1 . . . . . . . . . . . . . . L Near 0014 CODE LOP2 . . . . . . . . . . . . . . L Near 001A CODE LOP3 . . . . . . . . . . . . . . L Near 0022 CODE LOP4 . . . .

17、. . . . . . . . . . L Near 0026 CODE LOP . . . . . . . . . . . . . . L Near 000C CODE MAX . . . . . . . . . . . . . . Byte 000A DATA START . . . . . . . . . . . . . L Near 0000 CODE 0 Warnings 0 Errors4-26Microsoft (R) Macro Assembler Version 6.11 10/23/12 16:21:27m26.asm Page 1 - 1 0000 DATA SEGMEN

18、T 0000 1F 06 19 30 38 0A BUF DB 31,6,25,48,56,10,17,85,59,28 11 55 3B 1C 000A = 000A NUM EQU $-BUF 000A DATA ENDS 0000 CODE SEGMENT ASSUME CS:CODE,DS:DATA 0000 B8 - R START: MOV AX,DATA 0003 8E D8 MOV DS,AX 0005 B9 000A MOV CX,NUM 0008 49 DEC CX 0009 8B F1 LOP1: MOV SI,CX 000B BB 0000 MOV BX,0 000E

19、8A 87 0000 R LOP2: MOV AL,BUFBX 0012 3A 87 0001 R CMP AL,BUFBX+1 0016 73 08 JAE LOP3 0018 86 87 0001 R XCHG AL,BUFBX+1 001C 88 87 0000 R MOV BUFBX,AL 0020 43 LOP3: INC BX 0021 E2 EB LOOP LOP2 0023 8B CE MOV CX,SI 0025 E2 E2 LOOP LOP1 0027 B4 4C MOV AH,4CH 0029 CD 21 INT 21H 002B CODE ENDS END STARTM

20、icrosoft (R) Macro Assembler Version 6.11 10/23/12 16:21:27m26.asm Symbols 2 - 1Segments and Groups: N a m e Size Length Align Combine ClassCODE . . . . . . . . . . . . . . 16 Bit 002B Para Private DATA . . . . . . . . . . . . . . 16 Bit 000A Para Private Symbols: N a m e Type Value AttrBUF . . . . . . . . . . . . . . Byte 0000 DATA LOP1 . . . . . . . . . . . . . . L Near 0009 CODE LOP2 . . . . . . . . . . . . . . L Near 000E CODE LOP3 . . . . . . . . . . . . . . L Near 0020 CODE NUM . . . . . . . . . . . . . . Number 000Ah START . . . . . . . . . . . . . L Near 0000 CODE 0 Warnings 0 Errors