s15-4.lst

键盘控制程序,很适合初学者学习,代码内有详细的中文注示

A51 MACRO ASSEMBLER  S15_4                                                                12/22/2003 17:41:02 PAGE     1


MACRO ASSEMBLER A51 V7.07
OBJECT MODULE PLACED IN .\S15-4.OBJ
ASSEMBLER INVOKED BY: C:\KEIL\C51\BIN\A51.EXE .\S15-4.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

0000                   1             ORG 0000H
0000 0130              2             AJMP MAIN
000B                   3             ORG 000BH
000B 014B              4             AJMP CTC0
0030                   5             ORG 0030H
0030 758900            6     MAIN:   MOV TMOD,#00H
0033 758AFF            7             MOV TL0,#0FFH
0036 758CFF            8             MOV TH0,#0FFH
0039 D2AF              9             SETB EA
003B D2A9             10             SETB ET0
003D D28C             11             SETB TR0
003F 758000           12     GOON:   MOV P0,#00H
0042 116F             13             ACALL DEL25S
0044 7580FF           14             MOV P0,#0FFH
0047 116F             15             ACALL DEL25S
0049 013F             16             AJMP GOON
004B 758AFF           17     CTC0:   MOV TL0,#0FFH
004E 758CFF           18             MOV TH0,#0FFH
0051 20B011           19             JB P3.0,RE
0054 C28C             20             CLR TR0
0056 B3               21             CPL C
0057 4005             22             JC NEXT
0059 759000           23             MOV P1,#00H
005C 0161             24             AJMP NEXT1
005E 7590FF           25     NEXT:   MOV P1,#0FFH
0061 1166             26     NEXT1:  ACALL DEL1S
0063 D28C             27             SETB TR0
0065 32               28     RE:     RETI
0066 7DFF             29     DEL1S:  MOV R5,#0FFH
0068 7EFF             30     F1:     MOV R6,#0FFH
006A DEFE             31     F2:     DJNZ R6,F2
006C DDFA             32             DJNZ R5,F1
006E 22               33             RET
006F A80A             34     DEL25S: MOV R0,0AH
0071 1166             35     LOOP:   ACALL DEL1S
0073 D8FC             36             DJNZ R0,LOOP
0075 22               37             RET
                      38             END
                             
A51 MACRO ASSEMBLER  S15_4                                                                12/22/2003 17:41:02 PAGE     2

SYMBOL TABLE LISTING
------ ----- -------


N A M E             T Y P E  V A L U E   ATTRIBUTES

CTC0 . . . . . . .  C ADDR   004BH   A   
DEL1S. . . . . . .  C ADDR   0066H   A   
DEL25S . . . . . .  C ADDR   006FH   A   
EA . . . . . . . .  B ADDR   00A8H.7 A   
ET0. . . . . . . .  B ADDR   00A8H.1 A   
F1 . . . . . . . .  C ADDR   0068H   A   
F2 . . . . . . . .  C ADDR   006AH   A   
GOON . . . . . . .  C ADDR   003FH   A   
LOOP . . . . . . .  C ADDR   0071H   A   
MAIN . . . . . . .  C ADDR   0030H   A   
NEXT . . . . . . .  C ADDR   005EH   A   
NEXT1. . . . . . .  C ADDR   0061H   A   
P0 . . . . . . . .  D ADDR   0080H   A   
P1 . . . . . . . .  D ADDR   0090H   A   
P3 . . . . . . . .  D ADDR   00B0H   A   
RE . . . . . . . .  C ADDR   0065H   A   
TH0. . . . . . . .  D ADDR   008CH   A   
TL0. . . . . . . .  D ADDR   008AH   A   
TMOD . . . . . . .  D ADDR   0089H   A   
TR0. . . . . . . .  B ADDR   0088H.4 A   


REGISTER BANK(S) USED: 0 


ASSEMBLY COMPLETE.  0 WARNING(S), 0 ERROR(S)