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#ifndef CYGONCE_HAL_SH_STUB_H

#define CYGONCE_HAL_SH_STUB_H

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

//

//      sh_stub.h

//

//      SH stub defines

//

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

//####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

// License. However the source code for this file must still be made available

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

//

// This exception does not invalidate any other reasons why a work based on

// 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):    jskov

// Contributors: jskov,

// Date:         1999-05-18

// Purpose:      Define SH stub stuff

//

//####DESCRIPTIONEND####

//

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

#include <cyg/hal/hal_intr.h>           // CYGNUM_HAL_EXCEPTION_TRAP

#ifdef __cplusplus

extern "C" {

#endif

#define NUMREGS    59

#define REGSIZE( _x_ ) (4)

typedef unsigned long target_register_t;

enum regnames {

    R0, R1, R2, R3, R4, R5, R6, R7,

    R8, R9, R10, R11, R12, R13, R14, R15,

    PC, PR, GBR, VBR, MACH, MACL, SR,

    FPUL, FPSCR,

    FP0, FP1, FP2, FP3, FP4, FP5, FP6, FP7,

    FP8, FP9, FP10, FP11, FP12, FP13, FP14, FP15,

    SSR, SPC, ROB0, ROB1

};

// For convenience

#define SP              R15

#define FP              R14

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. */

extern void set_pc (target_register_t pc);

/* 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. */

void __single_step (void);

/* Clear the single-step state. */

void __clear_single_step (void);

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

   non-zero value. */

extern int __is_breakpoint_function (void);

/* Skip the current instruction. */

extern void __skipinst (void);

extern void __install_breakpoints (void);

extern void __clear_breakpoints (void);

// We have to rewind the PC in case of a breakpoint.

#define HAL_STUB_PLATFORM_STUBS_FIXUP()                         \

    CYG_MACRO_START                                             \

    if (CYGNUM_HAL_EXCEPTION_TRAP == __get_trap_number())       \

        put_register(PC, get_register(PC) - 2);                 \

    CYG_MACRO_END

#ifdef __cplusplus

}   /* extern "C" */

#endif

#endif // ifndef CYGONCE_HAL_PPC_STUB_H