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#ifndef CYGONCE_HAL_MIPS_STUB_H

#define CYGONCE_HAL_MIPS_STUB_H

//========================================================================

//

//      mips-stub.h

//

//      MIPS-specific definitions for generic stub

//

//========================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

//

// eCos is free software; you can redistribute it and/or modify it under

// the terms of the GNU General Public License as published by the Free

// Software Foundation; either version 2 or (at your option) any later version.

//

// eCos is distributed in the hope that it will be useful, but WITHOUT ANY

// WARRANTY; without even the implied warranty of MERCHANTABILITY or

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

// for more details.

//

// You should have received a copy of the GNU General Public License along

// with eCos; if not, write to the Free Software Foundation, Inc.,

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

//

// As a special exception, if other files instantiate templates or use macros

// or inline functions from this file, or you compile this file and link it

// with other works to produce a work based on this file, this file does not

// by itself cause the resulting work to be covered by the GNU General Public

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// in accordance with section (3) of the GNU General Public License.

//

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// this file might be covered by the GNU General Public License.

//

// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.

// at http://sources.redhat.com/ecos/ecos-license/

// -------------------------------------------

//####ECOSGPLCOPYRIGHTEND####

//========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):     Red Hat, nickg

// Contributors:  Red Hat, nickg, dmoseley

// Date:          1998-06-08

// Purpose:       

// Description:   MIPS-specific definitions for generic stub

// Usage:         

//

//####DESCRIPTIONEND####

//

//========================================================================

#include <pkgconf/system.h>

#include <pkgconf/hal_mips.h>

#include <cyg/hal/hal_io.h>

#ifdef __cplusplus

extern "C" {

#endif

#if defined(CYGPKG_HAL_MIPS_GDB_REPORT_CP0)

#define NUMREGS   107

#else

#define NUMREGS    90

#endif

#if defined(__mips64)

  // The simple case of 64-bit regs represented to GDB as 64-bit regs.

  #define REGSIZE(X) 8

  typedef unsigned long long target_register_t;

# ifdef CYGINT_HAL_MIPS_STUB_REPRESENT_32BIT_AS_64BIT

#  error __mips64 & CYGINT_HAL_MIPS_STUB_REPRESENT_32BIT_AS_64BIT

# endif

#elif defined(CYGINT_HAL_MIPS_STUB_REPRESENT_32BIT_AS_64BIT)

    // This is a catch-all for the common case:

    // Even though we are only working with 32 bit registers, GDB expects 64 bits

#define REGSIZE(X) 8

typedef unsigned long target_register_t;

    // We need to sign-extend the registers so GDB doesn't get confused.

#define CYGARC_SIGN_EXTEND_REGISTERS

    // The following platform-specific cases can be removed as/when/if they

    // get modified to implement CYGINT_HAL_MIPS_STUB_REPRESENT_32BIT_AS_64BIT

#elif defined(CYGPKG_HAL_MIPS_VR4300)

  // Even though we are only working with 32 bit registers, GDB expects 64 bits

  #define REGSIZE(X) 8

  typedef unsigned long long target_register_t;

  // We need to sign-extend the registers so GDB doesn't get confused.

  #define CYGARC_SIGN_EXTEND_REGISTERS

#elif defined(CYGPKG_HAL_MIPS_TX49)

  // Even though we are only working with 32 bit registers, GDB expects 64 bits

  #define REGSIZE(X) 8

  typedef unsigned long target_register_t;

  // We need to sign-extend the registers so GDB doesn't get confused.

  #define CYGARC_SIGN_EXTEND_REGISTERS

#elif defined(CYGPKG_HAL_MIPS_RM7000)

  // Even though we are only working with 32 bit registers, GDB expects 64 bits

  #define REGSIZE(X) 8

  typedef unsigned long target_register_t;

  // We need to sign-extend the registers so GDB doesn't get confused.

  #define CYGARC_SIGN_EXTEND_REGISTERS

#elif 0 //defined(CYGPKG_HAL_MIPS_MIPS32)

  // Even though we are only working with 32 bit registers, GDB expects 64 bits

  #define REGSIZE(X) 8

  typedef unsigned long target_register_t;

  // We need to sign-extend the registers so GDB doesn't get confused.

  #define CYGARC_SIGN_EXTEND_REGISTERS

#else

  // The simplest case of 32-bit regs represented to GDB as 32-bit regs.

  #define REGSIZE(X) 4

  typedef unsigned long target_register_t;

#endif

enum regnames {

        REG_ZERO,   REG_AT,     REG_V0,     REG_V1,     REG_A0,     REG_A1,     REG_A2,     REG_A3,

        REG_T0,     REG_T1,     REG_T2,     REG_T3,     REG_T4,     REG_T5,     REG_T6,     REG_T7,

        REG_S0,     REG_S1,     REG_S2,     REG_S3,     REG_S4,     REG_S5,     REG_S6,     REG_S7,

        REG_T8,     REG_T9,     REG_K0,     REG_K1,     REG_GP,     REG_SP,     REG_S8,     REG_RA,

        REG_SR,     REG_LO,     REG_HI,     REG_BAD,    REG_CAUSE,  REG_PC,

        REG_CONFIG = 84,    REG_CACHE,  REG_DEBUG,  REG_DEPC,   REG_EPC

};

#define USE_LONG_NAMES_FOR_ENUM_REGNAMES

typedef enum regnames regnames_t;

/* Given a trap value TRAP, return the corresponding signal. */

extern int __computeSignal (unsigned int trap_number);

/* Return the SPARC trap number corresponding to the last-taken trap. */

extern int __get_trap_number (void);

/* Return the currently-saved value corresponding to register REG. */

extern target_register_t get_register (regnames_t reg);

/* Store VALUE in the register corresponding to WHICH. */

extern void put_register (regnames_t which, target_register_t value);

/* Set the currently-saved pc register value to PC. This also updates NPC

   as needed. */

#if !defined(SET_PC_PROTOTYPE_EXISTS) && !defined(set_pc)

#define SET_PC_PROTOTYPE_EXISTS

extern void set_pc (target_register_t pc);

#endif

/* Set things up so that the next user resume will execute one instruction.

   This may be done by setting breakpoints or setting a single step flag

   in the saved user registers, for example. */

#ifndef __single_step

void __single_step (void);

#endif

/* Clear the single-step state. */

void __clear_single_step (void);

extern int __is_bsp_syscall(void);

extern int hal_syscall_handler(void);

/* If the breakpoint we hit is in the breakpoint() instruction, return a

   non-zero value. */

#ifndef __is_breakpoint_function

extern int __is_breakpoint_function (void);

#endif

/* Skip the current instruction. */

extern void __skipinst (void);

extern void __install_breakpoints (void);

extern void __clear_breakpoints (void);

extern void __install_breakpoint_list (void);

extern void __clear_breakpoint_list (void);

#ifdef __cplusplus

}      /* extern "C" */

#endif

#endif // ifndef CYGONCE_HAL_MIPS_STUB_H