led2.src

例子C版

; led2.SRC generated from: led2.c
; COMPILER INVOKED BY:
;        C:\Keil\C51\BIN\C51.EXE led2.c BROWSE DEBUG OBJECTEXTEND

$NOMOD51

NAME	LED2

P0	DATA	080H
P1	DATA	090H
P2	DATA	0A0H
P3	DATA	0B0H
T0	BIT	0B0H.4
AC	BIT	0D0H.6
T1	BIT	0B0H.5
LED0	BIT	0A0H.0
EA	BIT	0A8H.7
LED1	BIT	0A0H.1
LED2	BIT	0A0H.2
LED3	BIT	0A0H.3
LED4	BIT	0A0H.4
LED5	BIT	0A0H.5
LED6	BIT	0A0H.6
LED7	BIT	0A0H.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
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?main?LED2        SEGMENT CODE 
?DT?main?LED2        SEGMENT DATA OVERLAYABLE 
?PR?_delay?LED2      SEGMENT CODE 
	EXTRN	CODE (?C_STARTUP)
	PUBLIC	_delay
	PUBLIC	main

	RSEG  ?DT?main?LED2
?main?BYTE:
          i?040:   DS   2
; /**************************************************************************************
; *		              LED闪烁的简单试验												  *
; *																					  *
; *																					  *
; ***************************************************************************************/
; #pragma SRC
; #include <reg51.h>	   //此文件中定义了51的一些特殊功能寄存器
; 
; sbit LED0 = P2^0  ;	   //定义P2.0的管脚为LED0
; sbit LED1 = P2^1  ;	   //定义P2.1的管脚为LED1
; sbit LED2 = P2^2  ;	   //定义P2.2的管脚为LED2
; sbit LED3 = P2^3  ;
; sbit LED4 = P2^4  ;
; sbit LED5 = P2^5  ;
; sbit LED6 = P2^6  ;
; sbit LED7 = P2^7  ;
; 
; void delay(unsigned int i);  //声明延时函数
; 
; main()

	RSEG  ?PR?main?LED2
main:
	USING	0
			; SOURCE LINE # 20
; { int  i;
			; SOURCE LINE # 21
;    
;    LED0  = 0;
			; SOURCE LINE # 23
	CLR  	LED0
; 
;   delay(10000);
			; SOURCE LINE # 25
	MOV  	R7,#010H
	MOV  	R6,#027H
	LCALL	_delay
; 
;   LED0 = 1;
			; SOURCE LINE # 27
	SETB 	LED0
; 
;   delay(10000);
			; SOURCE LINE # 29
	MOV  	R7,#010H
	MOV  	R6,#027H
	LJMP 	_delay
; END OF main

; 
; 
; 
; 
; }
; 
; /*******延时函数*************/
; void delay(unsigned int i)

	RSEG  ?PR?_delay?LED2
_delay:
	USING	0
			; SOURCE LINE # 37
;---- Variable 'i?141' assigned to Register 'R6/R7' ----
; {
			; SOURCE LINE # 38
;     char j;
;     for(i; i > 0; i--)
			; SOURCE LINE # 40
?C0002:
	SETB 	C
	MOV  	A,R7
	SUBB 	A,#00H
	MOV  	A,R6
	SUBB 	A,#00H
	JC   	?C0008
;         for(j = 255; j > 0; j--);
			; SOURCE LINE # 41
;---- Variable 'j?142' assigned to Register 'R5' ----
	MOV  	R5,#0FFH
?C0005:
	SETB 	C
	MOV  	A,R5
	XRL  	A,#080H
	SUBB 	A,#080H
	JC   	?C0004
	DEC  	R5
	SJMP 	?C0005
?C0004:
	MOV  	A,R7
	DEC  	R7
	JNZ  	?C0002
	DEC  	R6
?C0009:
	SJMP 	?C0002
; }
			; SOURCE LINE # 42
?C0008:
	RET  	
; END OF _delay

	END