delay.lst

小车上用的电脑锁方案（射频卡当钥匙）：包括原理图

A51 MACRO ASSEMBLER  DELAY                                                                06/02/2005 11:16:08 PAGE     1


MACRO ASSEMBLER A51 V7.10
OBJECT MODULE PLACED IN delay.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE delay.asm DB NOMOD51

LOC  OBJ            LINE     SOURCE

                       1     delaycode segment code
                       2     public delay1ms
                       3     public delay20ms
                       4     public delay200ms
                       5     public delay1s
----                   6     rseg delaycode
                       7     ;---------------------- delay1ms
0000 C0E0              8     delay1ms:  push acc
0002 75E0F8            9               mov acc,#0f8h
0005 00               10     delay1ms1: nop
0006 00               11               nop
0007 D5E0FB           12               djnz acc,delay1ms1
000A D0E0             13               pop acc
000C 22               14               ret
                      15     ;----------------------- delay20ms
000D C0E0             16     delay20ms:   push acc
000F 75E014           17                 mov acc,#20
0012 120000   F       18     delay20ms1:  lcall delay1ms
0015 D5E0FA           19                 djnz acc,delay20ms1
0018 D0E0             20                 pop acc
001A 22               21                 ret
                      22     ;-----------------------delay200ms
001B C0E0             23     delay200ms:   push acc
001D 75E0C8           24                  mov acc,#200
0020 120000   F       25     delay200ms1:  lcall delay1ms
0023 D5E0FA           26                  djnz acc,delay200ms1
0026 D0E0             27                  pop acc
0028 22               28                  ret
                      29     ;------------------------delay1s
0029 C0E0             30     delay1s:   push acc
002B 75E005           31               mov acc,#5
002E 120000   F       32     delay1s1:  lcall delay200ms
0031 D5E0FA           33               djnz acc,delay1s1
0034 D0E0             34               pop acc
0036 22               35               ret
                      36                
                      37     end           
A51 MACRO ASSEMBLER  DELAY                                                                06/02/2005 11:16:08 PAGE     2

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


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

ACC. . . . . . . .  D ADDR   00E0H   A   
DELAY1MS . . . . .  C ADDR   0000H   R   SEG=DELAYCODE
DELAY1MS1. . . . .  C ADDR   0005H   R   SEG=DELAYCODE
DELAY1S. . . . . .  C ADDR   0029H   R   SEG=DELAYCODE
DELAY1S1 . . . . .  C ADDR   002EH   R   SEG=DELAYCODE
DELAY200MS . . . .  C ADDR   001BH   R   SEG=DELAYCODE
DELAY200MS1. . . .  C ADDR   0020H   R   SEG=DELAYCODE
DELAY20MS. . . . .  C ADDR   000DH   R   SEG=DELAYCODE
DELAY20MS1 . . . .  C ADDR   0012H   R   SEG=DELAYCODE
DELAYCODE. . . . .  C SEG    0037H       REL=UNIT


REGISTER BANK(S) USED: 0 


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