/*
	File       : VMA.H
	Description: VMA for MEpix
	Author     : Peter H. Michalicka
	Environment: HP-UX 8.05
*/

typedef struct {
	WORD blkno;		/* block number */
	WORD asu;		/* accesses since used */
} mem_bd;

typedef struct {
	WORD blkno;		/* block number */
	WORD offset;		/* offset in Block */
} RLCofs;

typedef struct {
	char *fn;			/* file name */
	FILE *fp;			/* file descriptor */
	int nblocks;			/* total number of blocks */
	int rblocks;			/* no of blocks resident in memory */
	int blocksize;			/* bytes per block */
	RLCofs *ofs;			/* Offset info for run access */
	mem_bd *mbd;			/* ptr to memory block data list */
	char **bl;			/* ptr to memory block pointer list */
	int ImageLength;		/* image length */
	int ImageWidth;		/* image width */
	int LineNo;			/* actual line number */
} vma;

#define VM_DIRTY 1
#define VM_INUSE 2