nec-stub.h

eCos操作系统源码

#ifndef CYGONCE_HAL_NEC_STUB_H
#define CYGONCE_HAL_NEC_STUB_H
//========================================================================
//
//      nec-stub.h
//
//      NEC-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
// 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):     Red Hat, nickg
// Contributors:  Red Hat, nickg
// Date:          1998-06-08
// Purpose:       
// Description:   NEC-specific definitions for generic stub
// Usage:         
//
//####DESCRIPTIONEND####
//
//========================================================================


#ifdef __cplusplus
extern "C" {
#endif

#define NUMREGS    66
#define REGSIZE(X) 4
typedef unsigned long target_register_t;

enum regnames {
    R0,  R1,  SP,  R3,  R4,  R5,  R6,  R7,
    R8,  R9 , R10, R11, R12, R13, R14, R15,
    R16, R17, R18, R19, R20, R21, R22, R23,
    R24, R25, R26, R27, R28, R29, R30, R31,
    EIPC, EIPSW, FEPC, FEPSW, ECR, PSW, SR6, SR7,
    SR8,  SR9 , SR10, SR11, SR12, SR13, SR14, SR15,
    SR16, SR17, SR18, SR19, SR20, SR21, SR22, SR23,
    SR24, SR25, SR26, SR27, SR28, SR29, SR30, SR31,
    PC, FP
};

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);

#ifdef __cplusplus
} /* extern "C" */
#endif

#endif // ifndef CYGONCE_HAL_NEC_STUB_H