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/* or1ksim.h -- Simulator library header file

   Copyright (C) 2008 Embecosm Limited

   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>

   This file is part of OpenRISC 1000 Architectural Simulator.

   This program 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 3 of the License, or (at your option)

   any later version.

   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>. */

/* Header file definining the interface to the Or1ksim library. */

#ifndef OR1KSIM__H

#define OR1KSIM__H

/* The bus width */

/* #define BUSWIDTH  32 */

/* The return codes */

enum  or1ksim_rc {

  OR1KSIM_RC_OK,                /* No error */

  OR1KSIM_RC_BADINIT,           /* Couldn't initialize */

  OR1KSIM_RC_BRKPT,             /* Hit a breakpoint */

  OR1KSIM_RC_HALTED             /* Hit NOP_EXIT */

};

/* The interface methods */

#ifdef __cplusplus

extern "C" {

#endif

int  or1ksim_init (int         argc,

                   char       *argv[],

                   void       *class_ptr,

                   int       (*upr) (void              *class_ptr,

                                     unsigned long int  addr,

                                     unsigned char      mask[],

                                     unsigned char      rdata[],

                                     int                data_len),

                   int       (*upw) (void              *class_ptr,

                                     unsigned long int  addr,

                                     unsigned char      mask[],

                                     unsigned char      wdata[],

                                     int                data_len));

int  or1ksim_run (double  duration);

void  or1ksim_reset_duration (double duration);

void  or1ksim_set_time_point ();

double  or1ksim_get_time_period ();

int  or1ksim_is_le ();

unsigned long int  or1ksim_clock_rate();

/* Interrupt handling interface */

void  or1ksim_interrupt (int  i);

void or1ksim_interrupt_set (int  i);

void  or1ksim_interrupt_clear (int  i);

/* JTAG interface */

double  or1ksim_jtag_reset ();

double  or1ksim_jtag_shift_ir (unsigned char *jreg,

                               int            num_bits);

double  or1ksim_jtag_shift_dr (unsigned char *jreg,

                               int            num_bits);

/* Access to simulator state */

int  or1ksim_read_mem (unsigned long int  addr,

                       unsigned char     *buf,

                       int                len);

int  or1ksim_write_mem (unsigned long int  addr,

                        unsigned char     *buf,

                        int                len);

int  or1ksim_read_spr (int                 sprnum,

                       unsigned long int  *sprval_ptr);

int  or1ksim_write_spr (int                sprnum,

                        unsigned long int  sprval);

int  or1ksim_read_reg (int                regnum,

                       unsigned long int *regval_ptr);

int  or1ksim_write_reg (int                regnum,

                        unsigned long int  regval);

void  or1ksim_set_stall_state (int  state);

#ifdef __cplusplus

}

#endif

#endif  /* OR1KSIM__H */