delay.lst

实现了应急灯的控制

A51 MACRO ASSEMBLER  DELAY                                                                01/17/2008 16:19:15 PAGE     1


MACRO ASSEMBLER A51 V7.07
OBJECT MODULE PLACED IN delay.OBJ
ASSEMBLER INVOKED BY: D:\Keil\C51\BIN\A51.EXE delay.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

                       1     ;$include(c8051f330.inc)
                       2     PUBLIC  _DELAY;
                       3     DE      SEGMENT CODE;
----                   4     RSEG    DE;
0000 C3                5     _DELAY: CLR C;
0001 EF                6             MOV A,R7;
0002 9417              7             SUBB A,#17H;
0004 FF                8             MOV  R7,A;
0005 EE                9             MOV A,R6
0006 9400             10             SUBB A,#00H;
0008 FE               11             MOV R6,A;
0009 4011             12             JC  DELEND;
                      13             
                      14     
000B EE               15             MOV A,R6;
000C 13               16             RRC A;
000D FE               17             MOV R6,A;
                      18     
000E EF               19             MOV A,R7;
000F 13               20             RRC A;
0010 FF               21             MOV R7,A;
0011 DFFE             22     DELSMA: DJNZ R7,DELSMA;
0013 EE               23             MOV  A,R6;
0014 6006             24             JZ   DELEND;
0016 1E               25             DEC  R6;
0017 00               26             NOP
0018 7FFC             27             MOV  R7,#0FCH;
001A 80F5             28             SJMP  DELSMA;
001C 22               29     DELEND: RET
                      30     
                      31             END
A51 MACRO ASSEMBLER  DELAY                                                                01/17/2008 16:19:15 PAGE     2

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


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

DE . . . . . . . .  C SEG    001DH       REL=UNIT
DELEND . . . . . .  C ADDR   001CH   R   SEG=DE
DELSMA . . . . . .  C ADDR   0011H   R   SEG=DE
_DELAY . . . . . .  C ADDR   0000H   R   SEG=DE


REGISTER BANK(S) USED: 0 


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