delay.lst

基于UCM40的超声波测距函数,可测0.08---2.5米距离,数值精确

A51 MACRO ASSEMBLER  DELAY                                                                08/17/2007 10:25:40 PAGE     1


MACRO ASSEMBLER A51 V8.00
OBJECT MODULE PLACED IN delay.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE delay.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

                       1                        NAME DELAY
                       2     ?PR?_DELAY?DELAY   SEGMENT   CODE
                       3                        PUBLIC    _DELAY
----                   4                        RSEG      ?PR?_DELAY?DELAY
0000 C0E0              5     _DELAY:         PUSH    ACC
0002 EF                6                     MOV     A,R7
0003 6001              7                     JZ      DELA1
0005 0E                8                     INC     R6
0006 7D32              9     DELA1:          MOV     R5,#50D
0008 DDFE             10                     DJNZ    R5,$
000A DFFA             11                     DJNZ    R7,DELA1
000C DEF8             12                     DJNZ    R6,DELA1
000E D0E0             13                     POP     ACC
0010 22               14                     RET
                      15     
                      16                     END     
A51 MACRO ASSEMBLER  DELAY                                                                08/17/2007 10:25:40 PAGE     2

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


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

?PR?_DELAY?DELAY .  C SEG    0011H       REL=UNIT
ACC. . . . . . . .  D ADDR   00E0H   A   
DELA1. . . . . . .  C ADDR   0006H   R   SEG=?PR?_DELAY?DELAY
DELAY. . . . . . .  N NUMB   -----       
_DELAY . . . . . .  C ADDR   0000H   R   SEG=?PR?_DELAY?DELAY


REGISTER BANK(S) USED: 0 


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