rec.lst

《单片机原理实用教程——基于Proteus虚拟仿真》一书的配套光盘


ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 1





       MCS-51 Family Cross Assembler   A S E M - 5 1   V 1.2
       =====================================================



	Source File:	REC.ASM
	Object File:	REC.HEX
	List File:	REC.LST



 Line  I  Addr  Code            Source

    1:		N      0000	        ORG 0000H
    2:	  0000	02 00 30	        LJMP REV
    3:		N      0030	        ORG 30H
    4:	  0030	75 98 90	REV: 	MOV SCON, #90H         ;设置串行口工作方式2，允许接收
    5:	  0033	75 87 80	      	MOV PCON, #80H         ;波特率为fosc/32
    6:	  0036	7F 10			MOV R7,#10H
    7:	  0038	10 98 02	LOOP:	JBC RI, READ           ;等待接收数据并清0标志位RI
    8:	  003B	80 FB		     	SJMP LOOP
    9:	  003D	E5 99		READ:	MOV A, SBUF            ;读入一帧数据
   10:	  003F	20 D0 05	     	JB PSW.0, ONE          ;判接收端奇偶位
   11:	  0042	20 9A 05	     	JB RB8, RIGHT          ;判发送端奇偶位
   12:	  0045	80 03		     	SJMP RIGHT
   13:	  0047	20 9A 0D	ONE: 	JB RB8, ERR
   14:	  004A	C4		RIGHT:  SWAP A                 ;接收正确,高低位交换
   15:	  004B	F5 90			MOV P1,A               ;送往P1显示
   16:	  004D	12 00 64		LCALL DELAY            ;延时
   17:	  0050	75 99 00		MOV SBUF,#00H          ;回送正确标志
   18:	  0053	DF E3			DJNZ R7,LOOP           ;接收未完，继续
   19:	  0055	80 FE		L:	SJMP L
   20:	  0057	75 90 FF	ERR:   	MOV P1,#0FFH           ;接收出错，显示FF
   21:	  005A	12 00 64		LCALL DELAY            ;延时
   22:	  005D	75 99 FF	        MOV SBUF,#0FFH         ;回送出错标志
   23:	  0060	DF D6			DJNZ R7,LOOP           ;接收未完，继续
   24:	  0062	80 FE		LL:	SJMP LL
   25:
   26:	  0064	7F 03		DELAY:  MOV R7,#3
   27:	  0066	7E FF		DD1:	MOV R6,#0FFH
   28:	  0068	7D FF		DD2:	MOV R5,#0FFH
   29:	  006A	DD FE			DJNZ R5,$
   30:	  006C	DE FA			DJNZ R6,DD2
   31:	  006E	DF F6			DJNZ R7,DD1
   32:	  0070	22			RET
   33:
   34:					END





                     register banks used:  ---

                     no errors


ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 2






ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 3





	       L I S T   O F   S Y M B O L S
	       =============================


SYMBOL				  TYPE     VALUE	LINE
------------------------------------------------------------
AC				  BIT	      D6
ACC				  DATA	      E0
B				  DATA	      F0
CY				  BIT	      D7
DD1				  CODE	    0066	  27
DD2				  CODE	    0068	  28
DELAY				  CODE	    0064	  26
DPH				  DATA	      83
DPL				  DATA	      82
EA				  BIT	      AF
ERR				  CODE	    0057	  20
ES				  BIT	      AC
ET0				  BIT	      A9
ET1				  BIT	      AB
EX0				  BIT	      A8
EX1				  BIT	      AA
EXTI0				  CODE	    0003
EXTI1				  CODE	    0013
F0				  BIT	      D5
IE				  DATA	      A8
IE0				  BIT	      89
IE1				  BIT	      8B
INT0				  BIT	      B2
INT1				  BIT	      B3
IP				  DATA	      B8
IT0				  BIT	      88
IT1				  BIT	      8A
L				  CODE	    0055	  19
LL				  CODE	    0062	  24
LOOP				  CODE	    0038	   7
ONE				  CODE	    0047	  13
OV				  BIT	      D2
P				  BIT	      D0
P0				  DATA	      80
P1				  DATA	      90
P2				  DATA	      A0
P3				  DATA	      B0
PCON				  DATA	      87
PS				  BIT	      BC
PSW				  DATA	      D0
PT0				  BIT	      B9
PT1				  BIT	      BB
PX0				  BIT	      B8
PX1				  BIT	      BA
RB8				  BIT	      9A
RD				  BIT	      B7
READ				  CODE	    003D	   9
REN				  BIT	      9C
RESET				  CODE	    0000
REV				  CODE	    0030	   4

ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 4



SYMBOL				  TYPE     VALUE	LINE
------------------------------------------------------------
RI				  BIT	      98
RIGHT				  CODE	    004A	  14
RS0				  BIT	      D3
RS1				  BIT	      D4
RXD				  BIT	      B0
SBUF				  DATA	      99
SCON				  DATA	      98
SINT				  CODE	    0023
SM0				  BIT	      9F
SM1				  BIT	      9E
SM2				  BIT	      9D
SP				  DATA	      81
T0				  BIT	      B4
T1				  BIT	      B5
TB8				  BIT	      9B
TCON				  DATA	      88
TF0				  BIT	      8D
TF1				  BIT	      8F
TH0				  DATA	      8C
TH1				  DATA	      8D
TI				  BIT	      99
TIMER0				  CODE	    000B
TIMER1				  CODE	    001B
TL0				  DATA	      8A
TL1				  DATA	      8B
TMOD				  DATA	      89
TR0				  BIT	      8C
TR1				  BIT	      8E
TXD				  BIT	      B1
WR				  BIT	      B6