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/*-------------------------------------*/

/* prcb.h                              */

/* Last change :  11. 1.95              */

/*-------------------------------------*/

/*

 *  $Id: prcb.h,v 1.2 2001-09-27 11:59:59 chris Exp $

 */

#ifndef _PRCB_H_

#define _PRCB_H_

#include "flttbl.h"

#include "cntrltbl.h"

#include "intrtbl.h"

#include "systbl.h"

  /* PRocess Control Block

   */

struct PRCB {

  FaultTblEntry * faultTbl;             /* Fault Table Base */

  ControlTblEntry * controlTbl;         /* Control Table Base */

  unsigned int arithConfig;             /* Arithmetic Control Register Image */

  unsigned int faultConfig;             /* Fault Configuration Word Image */

  InterruptTbl * interruptTbl;          /* Interrupt Table Base */

  SystemTbl * systemTbl;                /* System Procedure Table Base */

  unsigned int reserved;                /* Reserved */

  unsigned int * intStackPtr;           /* Interrupt Stack Pointer */

  unsigned int instCacheConfig;         /* Instruction Cache Config */

  unsigned int regCacheConfig;          /* Register Cache Config */

};

  /* Constants for Arithmetic Control Register.

   */

#define INT_OVFL_ENABLE         0

#define INT_OVFL_DISABLE        0x1000

#define PRECISE_FLTS            0x8000 

#define IMPRECISE_FLTS          0 

  /* Constants for Fault Configuration Word.

   */

#define UNLGND_FAULT_ENABLE     0

#define UNLGND_FAULT_DISABLE    0x40000000 

  /* Constants for Instruction Cache Configuration Word.

   */

#define INST_CACHE_ENABLE       0

#define INST_CACHE_DISABLE      0x10000

  /* RAM-based Process Control Block.

   */

extern struct PRCB ram_prcb;

extern struct PRCB rom_prcb;

  /* Supervisor Stack. Is defined directly in rom.ld.

   */

extern unsigned int svrStackPtr[];

  /* Interrupt Stack. Is defined directly in rom.ld.

   */

extern unsigned int intStackPtr[];

#endif

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/* End of file */

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