main.src

《Proteus在MCS-51&ARM7系统中的应用百例》逆向之 Chapter 4 《Proteus在MCS-51&ARM7系统中的应用百例》MCS-51例子的C语言版本。

; .\main.SRC generated from: main.c
; COMPILER INVOKED BY:
;        D:\Program Files\Keil 8.08\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND SRC(.\main.SRC)

$NOMOD51

NAME	MAIN

P0	DATA	080H
P1	DATA	090H
P2	DATA	0A0H
P3	DATA	0B0H
T0	BIT	0B0H.4
AC	BIT	0D0H.6
T1	BIT	0B0H.5
EA	BIT	0A8H.7
IE	DATA	0A8H
RD	BIT	0B0H.7
ES	BIT	0A8H.4
IP	DATA	0B8H
RI	BIT	098H.0
INT0	BIT	0B0H.2
CY	BIT	0D0H.7
TI	BIT	098H.1
INT1	BIT	0B0H.3
PS	BIT	0B8H.4
SP	DATA	081H
OV	BIT	0D0H.2
WR	BIT	0B0H.6
SBUF	DATA	099H
PCON	DATA	087H
P30	BIT	0B0H.0
P31	BIT	0B0H.1
SCON	DATA	098H
TMOD	DATA	089H
TCON	DATA	088H
IE0	BIT	088H.1
IE1	BIT	088H.3
B	DATA	0F0H
ACC	DATA	0E0H
ET0	BIT	0A8H.1
ET1	BIT	0A8H.3
TF0	BIT	088H.5
TF1	BIT	088H.7
RB8	BIT	098H.2
TH0	DATA	08CH
EX0	BIT	0A8H.0
IT0	BIT	088H.0
TH1	DATA	08DH
TB8	BIT	098H.3
EX1	BIT	0A8H.2
IT1	BIT	088H.2
P	BIT	0D0H.0
SM0	BIT	098H.7
TL0	DATA	08AH
SM1	BIT	098H.6
TL1	DATA	08BH
SM2	BIT	098H.5
PT0	BIT	0B8H.1
PT1	BIT	0B8H.3
RS0	BIT	0D0H.3
TR0	BIT	088H.4
RS1	BIT	0D0H.4
TR1	BIT	088H.6
PX0	BIT	0B8H.0
PX1	BIT	0B8H.2
DPH	DATA	083H
DPL	DATA	082H
REN	BIT	098H.4
RXD	BIT	0B0H.0
TXD	BIT	0B0H.1
F0	BIT	0D0H.5
PSW	DATA	0D0H
?PR?_display?MAIN    SEGMENT CODE 
?PR?delay?MAIN       SEGMENT CODE 
?DT?delay?MAIN       SEGMENT DATA OVERLAYABLE 
?PR?key1?MAIN        SEGMENT CODE 
?PR?main?MAIN        SEGMENT CODE 
?CO?MAIN             SEGMENT CODE 
	EXTRN	CODE (?C_STARTUP)
	PUBLIC	TEMP
	PUBLIC	DBUF
	PUBLIC	K1TAB
	PUBLIC	SEGTAB
	PUBLIC	main
	PUBLIC	key1
	PUBLIC	delay
	PUBLIC	_display

	DSEG  AT  030H
           DBUF:   DS   1

	DSEG  AT  040H
           TEMP:   DS   1

	RSEG  ?DT?delay?MAIN
?delay?BYTE:
          j?142:   DS   1

	RSEG  ?CO?MAIN
SEGTAB:
	DB	03FH
	DB	006H
	DB	05BH
	DB	04FH
	DB	066H
	DB	06DH
	DB	07DH
	DB	007H
	DB	07FH
	DB	06FH
	DB	077H
	DB	07CH
	DB	058H
	DB	05EH
	DB	079H
	DB	071H
	DB	000H
	DB	040H

K1TAB:
	DB	081H
	DB	041H
	DB	021H
	DB	011H
	DB	082H
	DB	042H
	DB	022H
	DB	012H
	DB	084H
	DB	044H
	DB	024H
	DB	014H
	DB	088H
	DB	048H
	DB	028H
	DB	018H

; #include <reg51.h>
; #include <intrins.h>
;  
; typedef unsigned char BYTE;
; 
; BYTE DBUF _at_ 0x30;
; BYTE TEMP _at_ 0x40;
; 
; sbit P30=P3^0;
; sbit P31=P3^1;
; 
; BYTE code SEGTAB[]={ 0x3F,0x06,0x5B,0x4F,0x66,0x6D,       
; 		  	  		 0x7D,0x07,0x7F,0x6F,0x77,0x7C,
; 			  		 0x58,0x5E,0x79,0x71,0x00,0x40};
; 
; BYTE code K1TAB[]={  0x81,0x41,0x21,0x11,	
;      	       		 0x82,0x42,0x22,0x12,
; 			  		 0x84,0x44,0x24,0x14,
; 			  		 0x88,0x48,0x28,0x18};
; 	
; 
; void display(BYTE in)

	RSEG  ?PR?_display?MAIN
_display:
	USING	0
			; SOURCE LINE # 22
;---- Variable 'in?040' assigned to Register 'R7' ----
; {
			; SOURCE LINE # 23
; 	BYTE num;
; 	DBUF=in;
			; SOURCE LINE # 25
	MOV  	DBUF,R7
; 	TEMP=SEGTAB[DBUF];
			; SOURCE LINE # 26
	MOV  	A,R7
	MOV  	DPTR,#SEGTAB
	MOVC 	A,@A+DPTR
	MOV  	TEMP,A
; 	
; 	num=8;
			; SOURCE LINE # 28
;---- Variable 'num?041' assigned to Register 'R7' ----
	MOV  	R7,#08H
; 	ACC=TEMP;
			; SOURCE LINE # 29
?C0003:
; 
; 	do
; 	{
			; SOURCE LINE # 32
; 		#pragma asm
; 			RLC A	
	  RLC A	
; 		#pragma endasm
; 
; 		P30=CY;
			; SOURCE LINE # 37
	MOV  	P30,C
; 		P31=0;
			; SOURCE LINE # 38
	CLR  	P31
; 		P31=1;
			; SOURCE LINE # 39
	SETB 	P31
; 	}while(--num);		
			; SOURCE LINE # 40
	DJNZ 	R7,?C0003
; }
			; SOURCE LINE # 41
	RET  	
; END OF _display

; 
; 
; 
; void delay()

	RSEG  ?PR?delay?MAIN
delay:
	USING	0
			; SOURCE LINE # 45
; {
			; SOURCE LINE # 46
; 	BYTE i=0x01;
			; SOURCE LINE # 47
;---- Variable 'i?143' assigned to Register 'R7' ----
	MOV  	R7,#01H
?C0007:
; 	
; 	do
; 	{	
			; SOURCE LINE # 50
; 		BYTE j=0x88;
			; SOURCE LINE # 51
	MOV  	j?142,#088H
?C0010:
; 		do
; 		{
			; SOURCE LINE # 53
; 			_nop_();
			; SOURCE LINE # 54
	NOP  	
; 		}while(--j);
			; SOURCE LINE # 55
	DJNZ 	j?142,?C0010
; 	}while(--i);
			; SOURCE LINE # 56
	DJNZ 	R7,?C0007
; } 
			; SOURCE LINE # 57
	RET  	
; END OF delay

; 
; 
; 
; BYTE key1()

	RSEG  ?PR?key1?MAIN
key1:
	USING	0
			; SOURCE LINE # 61
; {
			; SOURCE LINE # 62
?C0012:
; 	BYTE temp;
; 	BYTE num;
; 	BYTE key;
; 
; 	while(1)
			; SOURCE LINE # 67
; 	{
			; SOURCE LINE # 68
; 		P1=0xF0;
			; SOURCE LINE # 69
	MOV  	P1,#0F0H
; 		if(P1==0xF0)
			; SOURCE LINE # 70
	MOV  	A,P1
	XRL  	A,#0F0H
	JZ   	?C0012
; 			continue;
			; SOURCE LINE # 71
?C0014:
; 
; 		delay();		
			; SOURCE LINE # 73
	LCALL	delay
; 		P1=0xF0;
			; SOURCE LINE # 74
	MOV  	P1,#0F0H
; 		temp=P1;
			; SOURCE LINE # 75
;---- Variable 'temp?244' assigned to Register 'R7' ----
	MOV  	R7,P1
; 		if(temp==0xF0)
			; SOURCE LINE # 76
	MOV  	A,R7
	XRL  	A,#0F0H
	JZ   	?C0012
; 			continue;
			; SOURCE LINE # 77
?C0015:
; 		
; 		P1=0x0F;
			; SOURCE LINE # 79
	MOV  	P1,#0FH
; 		temp=P1&temp;
			; SOURCE LINE # 80
	MOV  	A,P1
	ANL  	AR7,A
; 
; 		num=0x10;
			; SOURCE LINE # 82
;---- Variable 'num?245' assigned to Register 'R6' ----
	MOV  	R6,#010H
; 		key=0;
			; SOURCE LINE # 83
;---- Variable 'key?246' assigned to Register 'R5' ----
	CLR  	A
	MOV  	R5,A
?C0018:
; 
; 		do
; 		{
			; SOURCE LINE # 86
; 			if(temp==K1TAB[key])
			; SOURCE LINE # 87
	MOV  	A,R5
	MOV  	DPTR,#K1TAB
	MOVC 	A,@A+DPTR
	CJNE 	A,AR7,?C0019
; 			{
			; SOURCE LINE # 88
; 				P1=0x0F;
			; SOURCE LINE # 89
	MOV  	P1,#0FH
?C0020:
; 				while(P1!=0x0F);
			; SOURCE LINE # 90
	MOV  	A,P1
	CJNE 	A,#0FH,?C0020
?C0021:
; 				return key;
			; SOURCE LINE # 91
	MOV  	R7,AR5
	RET  	
; 			}
			; SOURCE LINE # 92
?C0019:
; 			key++;
			; SOURCE LINE # 93
	INC  	R5
; 		}while(--num);
			; SOURCE LINE # 94
	DJNZ 	R6,?C0018
; 	}			   
			; SOURCE LINE # 95
	SJMP 	?C0012
; END OF key1

; }
; 
; 
; main()

	RSEG  ?PR?main?MAIN
main:
	USING	0
			; SOURCE LINE # 99
; {
			; SOURCE LINE # 100
?C0023:
; 	while(1)
			; SOURCE LINE # 101
; 	{
			; SOURCE LINE # 102
; 		display(key1());
			; SOURCE LINE # 103
	LCALL	key1
	LCALL	_display
; 	}
			; SOURCE LINE # 104
	SJMP 	?C0023
; END OF main

	END