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/* dyn_rec.h -- Recompiler specific definitions

   Copyright (C) 2005 György `nog' Jeney, nog@sdf.lonestar.org

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 2 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, write to the Free Software

Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */

#ifndef DYN_REC_H

#define DYN_REC_H

struct x_ref {

  void *dyn_addr; /* Recompiled address */

  oraddr_t or_addr; /* The or address of the x-ref (physical) */

  unsigned int ref; /* How many times the x-ref is referenced */

  struct x_ref *next;

};

/* Each dynamically recompiled page has one of these */

struct dyn_page {

  oraddr_t or_page;

  void *host_page;

  unsigned int host_len;

  int carrys_delay_slot; /* Is the delay-slot of the last insn on the next page?*/

  int dirty; /* Is recompiled page invalid? */

  struct x_ref *xrefs; /* what's referenced in this page */

  struct x_ref **held_xrefs; /* The xrefs that this page holds */

  int delayr; /* delayr of memory backing this page */

  uint16_t ts[4096]; /* What registers the temporaries back */

  struct dyn_page *next;

};

struct dyn_page *find_dynd_page(oraddr_t addr);

struct x_ref *find_host_x_ref(struct x_ref *x_refs, oraddr_t addr);

struct x_ref *add_to_xrefs(struct dyn_page *dp, oraddr_t addr);

void recompile_page(struct dyn_page *dyn);

struct dyn_page *new_dp(oraddr_t page);

void add_to_held_xrefs(struct dyn_page *dp, struct x_ref *xref);

void add_to_opq(struct op_queue *opq, int end, int op);

void add_to_op_params(struct op_queue *opq, int end, unsigned long param);

void *enough_host_page(struct dyn_page *dp, void *cur, unsigned int *len,

                       unsigned int amount);

void dirtyfy_page(struct dyn_page *dp);

struct x_ref *find_held_x_ref(struct x_ref **held_xrefs, oraddr_t or_addr);

void init_dyn_recomp(void);

void jump_dyn_code(oraddr_t addr);

void dump_xrefs(struct dyn_page *dp, FILE *f);

void run_sched_out_of_line(int add_normal);

void recheck_immu(int got_en_dis);

#define IMMU_GOT_ENABLED 1

#define IMMU_GOT_DISABLED 2

#define NUM_RFE_HELD 100

#endif