main.c

来自「《Proteus在MCS-51&ARM7系统中的应用百例》逆向之 Chapter」· C语言 代码 · 共 45 行

#include <reg51.h>
typedef unsigned char BYTE;

BYTE data array[7] _at_ 0x30;

main()
{
	BYTE num=0x03;
	BYTE data *point_1=0x30;
	BYTE data *point_2=0x34;
	BYTE temp;

	array[0]=0x68;
	array[1]=0x55;
	array[2]=0x98;
	
	array[4]=0x55;
	array[5]=0x23;
	array[6]=0x64;

	

	point_1+=num;
	point_2+=num;
	CY=0;

	do
	{
		point_1--;
		point_2--;

		ACC=*point_1;
		temp=*point_2; 

		#pragma asm
			ADDC 	A,temp?043	
			DA 		A		
		#pragma endasm

		*point_1=ACC;	
	}while(--num);
   	
	while(1);
		
}