sfr P0 = 0x80;
sfr P1 = 0x90;
sfr P2 = 0xA0;
sfr P3 = 0xB0;
sfr P5 = 0xD8;
sfr TCON = 0x88;
sfr IEN0 = 0xA8;

sbit P5_0 = P5^0;
sbit P1_5 = P1^5;
sbit IT0 = TCON^0;
sbit EX0 = IEN0^0;
sbit EA = IEN0^7;

unsigned char temp;
int i = 0;
int A = 1;
int B = 1;


void main ()

{


P1 = 0x63; /*P1 (0-7): -CS0,-CS1,A2,A1,A0,-RESET,-DMARQ,Not connected*/
P5 = 0xF; /*P5 (0-3): -DIOR,-DIOW,Not connected,Not connected*/
P1_5 = 0x00;

for (i; i<40; i++ ) /*Delay (unknown duration) but more than 25us*/
{
A = A+B;
}

P1_5 = 1;

A = 1;
i = 0;

for (i; i<70; i++) /*Delay (unknown duration) but more than 2ms*/
{
B = A+B;
}

/*All previous to setup HDD*/

P1 = 0xFE;
P5_0 = 0;
P5_0 = 1;
temp = P2;
P5_0 = 0;
P0 = temp;

/*The above to read status register of the HDD*/


}