ex6-1a.lst

《增强型8051单片机实用开发技术》例程代码

A51 MACRO ASSEMBLER  EX6_1A                                                               11/27/2009 21:19:33 PAGE     1


MACRO ASSEMBLER A51 V8.01
OBJECT MODULE PLACED IN ex6-1a.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE ex6-1a.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

                       1     ;$include (STC12C5A.INC) ;包含STC12C5A60S2单片机寄存器定义文件
                +1     2     $nomod51 
                +1     3  +1 $save 
                +1   152  +1 $restore 
0000                 153                     ORG             0000H
0000 020100          154                     LJMP    MAIN
0013                 155                     ORG     0013H
0013 020110          156                     LJMP    INT1_ISR
0100                 157                     ORG     0100H
0100                 158     MAIN:
0100 758160          159                     MOV     SP,#60H
0103 74FE            160                     MOV     A,#0FEH
0105 75A0FF          161                     MOV     P2,#0FFH
0108 D28A            162                     SETB    IT1                     ;设置下降沿触发中断
010A D2AA            163                     SETB    EX1                     ;开放外部中断1
010C D2AF            164                     SETB    EA                      ;开放总中断
010E 80FE            165                     SJMP    $                       ;等矗