ex7-1a.lst

《增强型8051单片机实用开发技术》例程代码

A51 MACRO ASSEMBLER  EX7_1A                                                               11/27/2009 21:32:53 PAGE     1


MACRO ASSEMBLER A51 V8.01
OBJECT MODULE PLACED IN ex7-1a.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE ex7-1a.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

                       1     ;$include (STC12C5A.INC) ;包含STC12C5A60S2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                    ;转主程序
000B                 155             ORG             000BH                   ;T0中断服务程序入口地址
000B 020116          156             LJMP    T0_ISR
0100                 157             ORG             0100H
0100 758160          158     MAIN:MOV    SP,#60H         ;设置堆栈指针
0103 758901          159             MOV     TMOD,#01H       ;T0初始化
0106 758A58          160             MOV     TL0,#58H
0109 758C9E          161             MOV     TH0,#9EH
010C 7414            162             MOV     A,#20                   ;累加器A置20
010E D28C            163             SETB    TR0                     ;启动T0计