#include<reg52.h>
	#include<img.h>
	#define uchar unsigned char
	#define uint unsigned int
	
	
//	sbit RST=P2^4;
	sbit PSB=P2^3;
	sbit RS=P2^0;
	sbit RW=P2^1;
	sbit EN=P2^2;

	void delay(uint t)
	{
		uint i;
		for(i=0;i<t;i++);
	}

	void busy()
	{
		uchar flag;
		RS=0;
		RW=1;
		flag=P1;
		while((bit)flag==1);
	}

	void write_command(uchar p)
	{
		P1=p;	
		RS=0;
		RW=0;
		EN=1;
		delay(200);
		EN=0;
	}

	void write_data(uchar p)
	{
		P1=p;
		RS=1;
		RW=0;
		EN=1;
		delay(200);
		EN=0;
	}

	void clr_line(uchar line)
	{
		uchar i;
		if(line==1)
			write_command(0x80);
		else if(line==2)
			write_command(0x90);
		else if(line==3)
			write_command(0x88);
		else if(line==4)
			write_command(0x98);
		for(i=0;i<16;i++)
		{
			write_data(' ');
		}
	}

	void hz_disp(uchar line,uchar add,uchar *p)
	{
		clr_line(line);
		write_command(add);
		while(*p!='/')
		{
			write_data(*(p++));
		}
	}

	void init_lcd()
	{
		PSB=1;
		EN=0;
		write_command(0x0c);
	}

	void init_msg()
	{
		uchar i,j;
		write_command(0x34);
		for(i=0;i<32;i++)
		{
			for(j=0;j<16;j++)
			{
				if(j<8)
				{
					write_command(0x80+j);
					write_command(0x80+i);
					write_data(img[i*16+j*2]);
					write_data(img[i*16+j*2+1]);
				}
				else
				{
					write_command(0x80+j);
					write_command(0x80+i);
					write_data(img[16*32+i*16+(j-8)*2]);
					write_data(img[16*32+i*16+(j-8)*2+1]);
				}
			}
		}
		write_command(0x36);
	}