
/*====================================================================
 * os_exception.h
 *
 * Copyright 1995, Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,
 * Inc.; the contents of this file may not be disclosed to third
 * parties, copied or duplicated in any form, in whole or in part,
 * without the prior written permission of Silicon Graphics, Inc.
 *
 * RESTRICTED RIGHTS LEGEND:
 * Use, duplication or disclosure by the Government is subject to
 * restrictions as set forth in subdivision (c)(1)(ii) of the Rights
 * in Technical Data and Computer Software clause at DFARS
 * 252.227-7013, and/or in similar or successor clauses in the FAR,
 * DOD or NASA FAR Supplement. Unpublished - rights reserved under the
 * Copyright Laws of the United States.
 *====================================================================*/

/*---------------------------------------------------------------------*
        Copyright (C) 1998 Nintendo. (Originated by SGI)
        
        $RCSfile: os_exception.h,v $
        $Revision: 1.1 $
        $Date: 1998/10/09 08:01:07 $
 *---------------------------------------------------------------------*/

#ifndef _OS_EXCEPTION_H_
#define _OS_EXCEPTION_H_

#ifdef _LANGUAGE_C_PLUS_PLUS
extern "C" {
#endif

#include "ultratypes.h"

#if defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS)

typedef u32 OSIntMask;
typedef u32 OSHWIntr;

#endif /* defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS) */

/* Flags for debugging purpose */

#define OS_FLAG_CPU_BREAK   1   /* Break exception has occurred */
#define OS_FLAG_FAULT       2   /* CPU fault has occurred */

/* Interrupt masks */

#define OS_IM_NONE      0x00000001
#define OS_IM_RCP       0x00000401
#define OS_IM_SW1       0x00000501
#define OS_IM_SW2       0x00000601
#define OS_IM_CART      0x00000c01
#define OS_IM_PRENMI    0x00001401
#define OS_IM_RDBWRITE  0x00002401
#define OS_IM_RDBREAD   0x00004401
#define OS_IM_COUNTER   0x00008401
#define OS_IM_CPU       0x0000ff01
#define OS_IM_SP        0x00010401
#define OS_IM_SI        0x00020401
#define OS_IM_AI        0x00040401
#define OS_IM_VI        0x00080401
#define OS_IM_PI        0x00100401
#define OS_IM_DP        0x00200401
#define OS_IM_ALL       0x003fff01
#define RCP_IMASK       0x003f0000
#define RCP_IMASKSHIFT  16

#if defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS)

/* Interrupt operations */

extern OSIntMask    osGetIntMask(void);
extern OSIntMask    osSetIntMask(OSIntMask);

#endif  /* defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS) */

#ifdef _LANGUAGE_C_PLUS_PLUS
}
#endif

#endif /* !_OS_EXCEPTION_H_ */
