/*****************************************************************************/
/*                                                                           */
/*                                 memory.h                                  */
/*                                                                           */
/*                  Memory subsystem for the 6502 simulator                  */
/*                                                                           */
/*                                                                           */
/*                                                                           */
/* (C) 2002-2012, Ullrich von Bassewitz                                      */
/*                Roemerstrasse 52                                           */
/*                D-70794 Filderstadt                                        */
/* EMail:         uz@cc65.org                                                */
/*                                                                           */
/*                                                                           */
/* This software is provided 'as-is', without any expressed or implied       */
/* warranty.  In no event will the authors be held liable for any damages    */
/* arising from the use of this software.                                    */
/*                                                                           */
/* Permission is granted to anyone to use this software for any purpose,     */
/* including commercial applications, and to alter it and redistribute it    */
/* freely, subject to the following restrictions:                            */
/*                                                                           */
/* 1. The origin of this software must not be misrepresented; you must not   */
/*    claim that you wrote the original software. If you use this software   */
/*    in a product, an acknowledgment in the product documentation would be  */
/*    appreciated but is not required.                                       */
/* 2. Altered source versions must be plainly marked as such, and must not   */
/*    be misrepresented as being the original software.                      */
/* 3. This notice may not be removed or altered from any source              */
/*    distribution.                                                          */
/*                                                                           */
/*****************************************************************************/



#ifndef MEMORY_H
#define MEMORY_H

#include "inline.h"

extern unsigned char Mem[0x10000];

/*****************************************************************************/
/*                                   Code                                    */
/*****************************************************************************/



void MemWriteByte (unsigned Addr, unsigned char Val);
/* Write a byte to a memory location */

void MemWriteWord (unsigned Addr, unsigned Val);
/* Write a word to a memory location */

#if defined(HAVE_INLINE)
INLINE unsigned char MemReadByte (unsigned Addr)
/* Read a byte from a memory location */
{
    return Mem[Addr];
}
#else
#define MemReadByte(Addr) Mem[Addr]
#endif

unsigned MemReadWord (unsigned Addr);
/* Read a word from a memory location */

unsigned MemReadZPWord (unsigned char Addr);
/* Read a word from the zero page. This function differs from MemReadWord in that
** the read will always be in the zero page, even in case of an address
** overflow.
*/

void MemInit (void);
/* Initialize the memory subsystem */



/* End of memory.h */

#endif