📄 ledls.lst
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C51 COMPILER V7.20 LEDLS 05/23/2008 19:39:53 PAGE 1
C51 COMPILER V7.20, COMPILATION OF MODULE LEDLS
OBJECT MODULE PLACED IN .\LEDLS.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE .\LEDLS.c DEBUG OBJECTEXTEND CODE LISTINCLUDE PREPRINT
line level source
1 #include<reg51.h>
1 =1 /*--------------------------------------------------------------------------
2 =1 REG51.H
3 =1
4 =1 Header file for generic 80C51 and 80C31 microcontroller.
5 =1 Copyright (c) 1988-2002 Keil Elektronik GmbH and Keil Software, Inc.
6 =1 All rights reserved.
7 =1 --------------------------------------------------------------------------*/
8 =1
9 =1 #ifndef __REG51_H__
10 =1 #define __REG51_H__
11 =1
12 =1 /* BYTE Register */
13 =1 sfr P0 = 0x80;
14 =1 sfr P1 = 0x90;
15 =1 sfr P2 = 0xA0;
16 =1 sfr P3 = 0xB0;
17 =1 sfr PSW = 0xD0;
18 =1 sfr ACC = 0xE0;
19 =1 sfr B = 0xF0;
20 =1 sfr SP = 0x81;
21 =1 sfr DPL = 0x82;
22 =1 sfr DPH = 0x83;
23 =1 sfr PCON = 0x87;
24 =1 sfr TCON = 0x88;
25 =1 sfr TMOD = 0x89;
26 =1 sfr TL0 = 0x8A;
27 =1 sfr TL1 = 0x8B;
28 =1 sfr TH0 = 0x8C;
29 =1 sfr TH1 = 0x8D;
30 =1 sfr IE = 0xA8;
31 =1 sfr IP = 0xB8;
32 =1 sfr SCON = 0x98;
33 =1 sfr SBUF = 0x99;
34 =1
35 =1
36 =1 /* BIT Register */
37 =1 /* PSW */
38 =1 sbit CY = 0xD7;
39 =1 sbit AC = 0xD6;
40 =1 sbit F0 = 0xD5;
41 =1 sbit RS1 = 0xD4;
42 =1 sbit RS0 = 0xD3;
43 =1 sbit OV = 0xD2;
44 =1 sbit P = 0xD0;
45 =1
46 =1 /* TCON */
47 =1 sbit TF1 = 0x8F;
48 =1 sbit TR1 = 0x8E;
49 =1 sbit TF0 = 0x8D;
50 =1 sbit TR0 = 0x8C;
51 =1 sbit IE1 = 0x8B;
52 =1 sbit IT1 = 0x8A;
53 =1 sbit IE0 = 0x89;
54 =1 sbit IT0 = 0x88;
C51 COMPILER V7.20 LEDLS 05/23/2008 19:39:53 PAGE 2
55 =1
56 =1 /* IE */
57 =1 sbit EA = 0xAF;
58 =1 sbit ES = 0xAC;
59 =1 sbit ET1 = 0xAB;
60 =1 sbit EX1 = 0xAA;
61 =1 sbit ET0 = 0xA9;
62 =1 sbit EX0 = 0xA8;
63 =1
64 =1 /* IP */
65 =1 sbit PS = 0xBC;
66 =1 sbit PT1 = 0xBB;
67 =1 sbit PX1 = 0xBA;
68 =1 sbit PT0 = 0xB9;
69 =1 sbit PX0 = 0xB8;
70 =1
71 =1 /* P3 */
72 =1 sbit RD = 0xB7;
73 =1 sbit WR = 0xB6;
74 =1 sbit T1 = 0xB5;
75 =1 sbit T0 = 0xB4;
76 =1 sbit INT1 = 0xB3;
77 =1 sbit INT0 = 0xB2;
78 =1 sbit TXD = 0xB1;
79 =1 sbit RXD = 0xB0;
80 =1
81 =1 /* SCON */
82 =1 sbit SM0 = 0x9F;
83 =1 sbit SM1 = 0x9E;
84 =1 sbit SM2 = 0x9D;
85 =1 sbit REN = 0x9C;
86 =1 sbit TB8 = 0x9B;
87 =1 sbit RB8 = 0x9A;
88 =1 sbit TI = 0x99;
89 =1 sbit RI = 0x98;
90 =1
91 =1 #endif
2 #include <intrins.h>
1 =1 /*--------------------------------------------------------------------------
2 =1 INTRINS.H
3 =1
4 =1 Intrinsic functions for C51.
5 =1 Copyright (c) 1988-2004 Keil Elektronik GmbH and Keil Software, Inc.
6 =1 All rights reserved.
7 =1 --------------------------------------------------------------------------*/
8 =1
9 =1 #ifndef __INTRINS_H__
10 =1 #define __INTRINS_H__
11 =1
12 =1 extern void _nop_ (void);
13 =1 extern bit _testbit_ (bit);
14 =1 extern unsigned char _cror_ (unsigned char, unsigned char);
15 =1 extern unsigned int _iror_ (unsigned int, unsigned char);
16 =1 extern unsigned long _lror_ (unsigned long, unsigned char);
17 =1 extern unsigned char _crol_ (unsigned char, unsigned char);
18 =1 extern unsigned int _irol_ (unsigned int, unsigned char);
19 =1 extern unsigned long _lrol_ (unsigned long, unsigned char);
20 =1 extern unsigned char _chkfloat_(float);
21 =1 extern void _push_ (unsigned char _sfr);
22 =1 extern void _pop_ (unsigned char _sfr);
23 =1
24 =1 #endif
C51 COMPILER V7.20 LEDLS 05/23/2008 19:39:53 PAGE 3
25 =1
3
4
5 void delayms(unsigned char ms)
6 // 延时子程序
7 {
8 1 unsigned char i;
9 1 while(ms--)
10 1 {
11 2 for(i = 0; i < 120; i++);
12 2 }
13 1 }
14
15 main()
16 {
17 1 unsigned char LED;
18 1 LED = 0xfe;
19 1 P0 = LED;
20 1
21 1 while(1)
22 1 {
23 2 delayms(250);
24 2 LED = _crol_(LED,1); //循环右移1位，点亮下一个LED
25 2 P0 = LED;
26 2 }
27 1 }
C51 COMPILER V7.20 LEDLS 05/23/2008 19:39:53 PAGE 4
ASSEMBLY LISTING OF GENERATED OBJECT CODE
; FUNCTION _delayms (BEGIN)
; SOURCE LINE # 5
;---- Variable 'i' assigned to Register 'R6' ----
;---- Variable 'ms' assigned to Register 'R7' ----
; SOURCE LINE # 7
0000 ?C0001:
; SOURCE LINE # 9
0000 AD07 MOV R5,AR7
0002 1F DEC R7
0003 ED MOV A,R5
0004 600B JZ ?C0006
; SOURCE LINE # 10
; SOURCE LINE # 11
0006 E4 CLR A
0007 FE MOV R6,A
0008 ?C0003:
0008 EE MOV A,R6
0009 C3 CLR C
000A 9478 SUBB A,#078H
000C 50F2 JNC ?C0001
000E 0E INC R6
000F 80F7 SJMP ?C0003
; SOURCE LINE # 12
; SOURCE LINE # 13
0011 ?C0006:
0011 22 RET
; FUNCTION _delayms (END)
; FUNCTION main (BEGIN)
; SOURCE LINE # 15
; SOURCE LINE # 16
; SOURCE LINE # 18
;---- Variable 'LED' assigned to Register 'R4' ----
0000 7CFE MOV R4,#0FEH
; SOURCE LINE # 19
0002 8C80 MOV P0,R4
0004 ?C0007:
; SOURCE LINE # 21
; SOURCE LINE # 22
; SOURCE LINE # 23
0004 7FFA MOV R7,#0FAH
0006 120000 R LCALL _delayms
; SOURCE LINE # 24
0009 7801 MOV R0,#01H
000B AF04 MOV R7,AR4
000D EF MOV A,R7
000E 08 INC R0
000F 8001 SJMP ?C0011
0011 ?C0010:
0011 23 RL A
0012 ?C0011:
0012 D8FD DJNZ R0,?C0010
0014 FC MOV R4,A
; SOURCE LINE # 25
0015 F580 MOV P0,A
; SOURCE LINE # 26
0017 80EB SJMP ?C0007
; FUNCTION main (END)
C51 COMPILER V7.20 LEDLS 05/23/2008 19:39:53 PAGE 5
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 43 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = ---- ----
IDATA SIZE = ---- ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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