#ifndef EXEC_MEMORY_H
#define EXEC_MEMORY_H
/*********************************************************************
*
*   Commodore Amiga -- ROM Operating System Executive Include File
*
**********************************************************************
*
*   Source Control:
*
*       $Header: memory.h,v 1.0 85/08/28 15:11:49 carl Exp $
*
*       $Locker:  $
*
*********************************************************************/

#ifndef EXEC_NODES_H
#include "exec/nodes.h"
#endif !EXEC_NODES_H


/****** MemChunk ****************************************************/

struct  MemChunk {
    struct  MemChunk *mc_Next;  /* pointer to next chunk */
    ULONG   mc_Bytes;           /* chunk byte size      */
};


/****** MemHeader ***************************************************/

struct  MemHeader {
    struct  Node mh_Node;
    UWORD   mh_Attributes;      /* characteristics of this region */
    struct  MemChunk *mh_First; /* first free region            */
    APTR    mh_Lower;           /* lower memory bound           */
    APTR    mh_Upper;           /* upper memory bound+1         */
    ULONG   mh_Free;            /* total number of free bytes   */ 
};


/****** MemEntry ****************************************************/

struct  MemEntry {
union {
    ULONG   meu_Reqs;           /* the AllocMem requirements */
    APTR    meu_Addr;           /* the address of this memory region */
    } me_Un;
    ULONG   me_Length;          /* the length of this memory region */
};

#define me_un       me_Un       /* compatability */
#define me_Reqs     me_Un.meu_Reqs
#define me_Addr     me_Un.meu_Addr


/****** MemList *****************************************************/

struct  MemList {
    struct  Node ml_Node;
    UWORD   ml_NumEntries;      /* number of entries in this struct */
    struct  MemEntry ml_ME[1];  /* the first entry      */
};

#define ml_me   ml_ME           /* compatability */


/*----- Memory Requirement Types ---------------------------*/

#define MEMF_PUBLIC (1<<0)
#define MEMF_CHIP   (1<<1)
#define MEMF_FAST   (1<<2)

#define MEMF_CLEAR  (1L<<16)
#define MEMF_LARGEST (1L<<17)

#define MEM_BLOCKSIZE   8
#define MEM_BLOCKMASK   7

#endif