/* -*- mode: C++; tab-width: 4 -*- */
/* ===================================================================== *\
	Copyright (c) 1998-2001 Palm, Inc. or its subsidiaries.
	All rights reserved.

	This file is part of the Palm OS Emulator.

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.
\* ===================================================================== */

#ifndef EmBankSRAM_h
#define EmBankSRAM_h

class SessionFile;

extern emuptr	gMemoryStart;

	// These are also accessed by the DRAMBank functions.
extern uint32	gRAMBank_Size;
extern uint32	gRAMBank_Mask;
extern uint8*	gRAM_Memory;
extern uint8*	gRAM_MetaMemory;


class EmBankSRAM
{
	public:
		static void				Initialize			(RAMSizeType ramSize);
		static void				Reset				(Bool hardwareReset);
		static void				Save				(SessionFile&);
		static void				Load				(SessionFile&);
		static void				Dispose				(void);

		static void				SetBankHandlers		(void);

		static uint32			GetLong				(emuptr address);
		static uint32			GetWord				(emuptr address);
		static uint32			GetByte				(emuptr address);
		static void				SetLong				(emuptr address, uint32 value);
		static void				SetWord				(emuptr address, uint32 value);
		static void				SetByte				(emuptr address, uint32 value);
		static int				ValidAddress		(emuptr address, uint32 size);
		static uint8*			GetRealAddress		(emuptr address);
		static uint8*			GetMetaAddress		(emuptr address);
		static void				AddOpcodeCycles		(void);

		static emuptr			GetMemoryStart		(void) { return gMemoryStart; }

	private:
		static void				AddressError		(emuptr address, long size, Bool forRead);
		static void				InvalidAccess		(emuptr address, long size, Bool forRead);
		static void				ProtectedAccess		(emuptr address, long size, Bool forRead);
};

#endif /* EmBankSRAM_h */