串行通信接收.lst

这个是大学的计算机接口实验课上经常用到的原程序

A51 MACRO ASSEMBLER  串行通信接收                                                         04/14/2005 16:14:08 PAGE     1


MACRO ASSEMBLER A51 V1.10
OBJECT MODULE PLACED IN 串行通信接收.OBJ
ASSEMBLER INVOKED BY: H:\239\A51.EXE 串行通信接收.ASM DB

LOC  OBJ            LINE     SOURCE

                       1          ;串行通信接收程序清单 
0100                   2             ORG    0100H
0100 758920            3             MOV    TMOD,  #20H
0103 758DF3            4             MOV    TH1,   #0F3H
0106 758BF3            5             MOV    TL1,   #0F3H
0109 7598D0            6             MOV    SCON,  #0D0H
010C 758780            7             MOV    PCON,  #80H
010F 7830              8             MOV    R0,    #30H
0111 7A0A              9             MOV    R2,    #0AH
0113 D28E             10             SETB   TR1
0115 109802           11     S1:     JBC    RI,    S2
0118 2115             12             AJMP   S1
011A E599             13     S2:     MOV    A,     SBUF
011C C298             14             CLR    RI
011E F599             15             MOV    SBUF,   A
0120 109902           16     S3:     JBC    TI,    S4
0123 80FB             17             SJMP   S3
0125 C299             18     S4:     CLR    TI                                
0127 F6               19             MOV    @R0,    A
0128 08               20             INC    R0
0129 DAEA             21             DJNZ   R2,    S1
012B 80FE             22             SJMP   $
                      23             END                      
A51 MACRO ASSEMBLER  串行通信接收                                                         04/14/2005 16:14:08 PAGE     2

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


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

PCON . . . . . . .  D ADDR   0087H   A   
RI . . . . . . . .  B ADDR   0098H.0 A   
S1 . . . . . . . .  C ADDR   0115H   A   
S2 . . . . . . . .  C ADDR   011AH   A   
S3 . . . . . . . .  C ADDR   0120H   A   
S4 . . . . . . . .  C ADDR   0125H   A   
SBUF . . . . . . .  D ADDR   0099H   A   
SCON . . . . . . .  D ADDR   0098H   A   
TH1. . . . . . . .  D ADDR   008DH   A   
TI . . . . . . . .  B ADDR   0098H.1 A   
TL1. . . . . . . .  D ADDR   008BH   A   
TMOD . . . . . . .  D ADDR   0089H   A   
TR1. . . . . . . .  B ADDR   0088H.6 A   


REGISTER BANK(S) USED: 0 


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