sbit CS1=P1^0;
sbit SCL=P1^3;
sbit SI=P1^4;
sbit RES=P1^1;
sbit A0=P1^2;

void delay(unsigned int  time)
{while(time--);
}

void s_out(unsigned char cd)
{int i;
 i=0x80;
 CS1=0;
 while(i)
 {
  SCL=0;
  SI=cd&i;
  i>>=1;
  SCL=1;

 }
 CS1=1;
}

void wc(unsigned char c)
{A0=0;
 s_out(c);
}

void wd(unsigned char d)
{A0=1;
 s_out(d);
}

void lcd_init()//液晶初始化
{RES=0;
 delay(1);
 RES=1;//复位
 delay(1);
 wc(0xa2);//lcd bias select  1/9 BIAS
 wc(0xa0);//ADC  select,NORMAL   0-->127
 wc(0xc8);//com  select,REVERSE  63-->0
 wc(255);//B00STER  RATIO  SET
 wc(37);//RESISTOR RATIO
 wc(0x81);//ELECTRONIC VOLUME mode setting 100B 对比度命令
 wc(0);//Set reference voltagel register  59 对比度数值
 wc(0x2c);//power control
 wc(0x2e);//power control
 wc(0x2f);//power control
 wc(0xae);//set display on
 wc(0xf8);//set display on
 wc(0);//set display on
}

void cswc(unsigned char s)//clean the screen with a char "s"
{int i,j;
 unsigned char page;
 page=0xb0;
 wc(page);
 wc(0x10);
 wc(0x00);
 for(i=0;i<8;i++)
 {for(j=0;j<135;j++)
 {wd(s);
 }
 page++;
 wc(page);
 wc(0x10);
 wc(0x00);
 }
 wc(0xaf);
}

void disp(unsigned char x,unsigned char y,unsigned char *p)//显示核心函数
{
 int i,j;
 int hight,width;
 hight=16;
 width=8;
 wc(0xaf);
 for(j=0;j<(hight/8);j++)
 { wc(0xb0+j+y);
   wc((0x0f&(x>>4))|0x10);
   wc(0x0f&x);
   for(i=0;i<width;i++)
    {wd(p[width*j+i]);
    }
 }
}