#ifndef __flashIntel_h__
#define __flashIntel_h__

struct FlashIntel
{
	volatile U8 base[0];
/*
Read Array                      Write X FFH
Read Identifier       (Note 2)  Write X 90H     Read  IA ID
Read Status Register            Write X 70H     Read   X SRD
Clear Status Register           Write X 50H
Program               (Note 3)  Write X 40H/10H Write PA PD
Block Erase/Confirm             Write X 20H     Write BA D0H
Program/Erase Suspend           Write X B0H
Program/Erase Resume            Write X D0H

2.Following the Intelligent Identifier command,two Read operations access manufacturer and device codes.
A 0 =0 for manufacturer code,A 0 =1 for device code.A 1 –A 21 =0.
3.Either 40H or 10H command is valid although the standard is 40H.
*/
	inline U8 wait()
	{
		U8 read;
		while(1)
		{
			base[0]=0x70U;
			asm volatile("wbinvd");
			asm volatile("invd");
			read=base[0];
			if(read&0x80U)
				break;
		}
		base[0]=0xffU;
		asm volatile("wbinvd");
		return 1;
	}

	inline void reset()
	{
		base[0]=0xffU;
		asm volatile("wbinvd");
	}
	inline U8 manufactorId()
	{
		base[0]=0x90U;
		asm volatile("wbinvd");
		asm volatile("invd");
		return base[0];
	}
	inline U8 deviceId()
	{
		base[1]=0x90U;
		asm volatile("wbinvd");
		asm volatile("invd");
		return base[1];
	}
	inline U8 erase(U32 sector)
	{
		base[sector]=0x20U;
		asm volatile("wbinvd");
		base[sector]=0xd0U;
		asm volatile("wbinvd");
		return wait();
	}
	inline U8 erase()
	{
		return erase(0xffff);
	}
	inline U8 write(U32 address,U8 value)
	{
		base[address]=0x40U;
		asm volatile("wbinvd");
		base[address]=value;
		asm volatile("wbinvd");
		wait();
		return value;
	}
	inline const U8 operator[](U32 address)
	{
		return base[address];
	}
};

#endif /*__flashIntel_h__*/