m5-1.lst

该源码与书本配套

  Wed Jun 15 2005 16:17                                                                                                  Page    1







               2500 A.D. 8051 Macro Assembler  -  Version 4.05a
               ------------------------------------------------

                       Input  Filename : M5-1.asm
                       Output Filename : M5-1.obj


    1          00FF            	LO_TIME	EQU FFH
    2          0001            	HI_TIME EQU 256-LO_TIME
    3                          	
    4   0000                   		ORG 0H
    5   0000   01 30           		AJMP START
    6   001B                   		ORG 1BH
    7   001B   01 40           		AJMP TIME1
    8                          	
    9   0030                   		ORG 30H
   10   0030   D2 90           	START	SETB P1.0
   11   0032   75 89 00        		MOV TMOD,#00000000B
   12   0035   75 8D FF        		MOV TH1,#LO_TIME
   13   0038   D2 AF           		SETB EA
   14   003A   D2 AB           		SETB ET1
   15   003C   D2 8E           		SETB TR1
   16   003E   80 FE           		SJMP $
   17                          	
   18   0040   10 90 06        	TIME1	JBC P1.0,LO_OUT
   19   0043   D2 90           	HI_OUT	SETB P1.0
   20   0045   75 8D FF        		MOV TH1,#LO_TIME
   21   0048   32              		RETI
   22   0049   75 8D 01        	LO_OUT	MOV TH1,#HI_TIME
   23   004C   32              		RETI
   24   004D                   		END 		



           Lines Assembled :  24             Assembly Errors :  0