Subversion Repositories openrisc_2011-10-31

/* MemoryLoad.h -- Header file for parse.c
 
   Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
   Copyright (C) 2008 Embecosm Limited
   Copyright (C) 2009 Julius Baxter, julius@orsoc.se
 
   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
 
   This file is part of Or1ksim, the 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/>.  */
 
/* Here we define some often used caharcters in assembly files.  This wil
   probably go into architecture dependent directory. */
 
 
#ifndef MEMORYLOAD__H
#define MEMORYLOAD__H
 
/* Package includes */
//#include "sim-config.h"
#include <stdint.h>
 
#include "coff.h"
#include "elf.h"
 
#include "OrpsocAccess.h"
 
//#define PRINTF(x...) fprintf(stdout,x)
#define PRINTF(x...)
 
/* Basic types for openrisc */
typedef uint32_t  oraddr_t;	/*!< Address as addressed by openrisc */
typedef uint32_t  uorreg_t;	/*!< An unsigned register of openrisc */
typedef int32_t   orreg_t;	/*!< A signed register of openrisc */
 
/* From abstract.h */
#define DEFAULT_MEMORY_START         0
//#define DEFAULT_MEMORY_LEN    0x800000
#define STACK_SIZE                  20
#define LABELNAME_LEN               50
#define INSNAME_LEN                 15
#define OPERANDNAME_LEN             50
#define MAX_OPERANDS                 5
 
#define OP_MEM_ACCESS       0x80000000
 
/* Cache tag types.  */
#define CT_NONE                      0
#define CT_VIRTUAL                   1
#define CT_PHYSICAL                  2
 
/* History of execution */
#define HISTEXEC_LEN               200
 
/* Added by MM */
#ifndef LONGEST
#define LONGEST long long
#endif /* LONGEST */
 
#ifndef ULONGEST
#define ULONGEST unsigned long long
#endif /* ULONGEST */
 
 
 
#define PRIx32 "x"
#define PRIx16 "hx"
#define PRIx8 "hhx"
#define PRId32 "d"
 
/* Strings for printing OpenRISC types */
#define PRIxADDR  "08" PRIx32	/*!< print an openrisc address in hex */
#define PRIxREG   "08" PRIx32	/*!< print an openrisc register in hex */
#define PRIdREG   PRId32	/*!< print an openrisc register in decimals */
 
/* Endianness convenience macros */
#define LE16(x) bswap_16(x)
 
/*! Instruction queue */
struct iqueue_entry
{
  int       insn_index;
  uint32_t  insn;
  oraddr_t  insn_addr;
};
 
/*! Structure for holding one label per particular memory location */
struct label_entry
{
  char               *name;
  oraddr_t            addr;
  struct label_entry *next;
};
 
/* from arch sim cpu/or1k/opcode/or32.h */
#define MAX_GPRS 32
#define PAGE_SIZE 8192
 
 
 
class MemoryLoad
{
 public:
 
  // Constructor
  MemoryLoad(OrpsocAccess            *_accessor);
 
  // Label access function
  struct label_entry* get_label (oraddr_t addr);
 
  uint32_t  loadcode (char     *filename,
		      oraddr_t  startaddr,
		      oraddr_t  virtphy_transl);
 
 
 private:
 
  //! The accessor for the Orpsoc instance
  OrpsocAccess *accessor;
 
#define MEMORY_LEN  0x100000000ULL
 
  /*!Whether to do immediate statistics. This seems to be for local debugging
  of parse.c */
#define IMM_STATS 0
 
  /*!Unused mem memory marker. It is used when allocating program and data
  memory during parsing */
  unsigned int  freemem;
 
   /*!Translation table provided by microkernel. Only used if simulating
   microkernel. */
  oraddr_t  transl_table;
 
  /*!Used to signal whether during loading of programs a translation fault
  occured. */
  uint32_t  transl_error;
 
#if IMM_STATS
  int       bcnt[33][3] = { 0 };
  int       bsum[3]     = { 0 };
  uint32_t  movhi       = 0;
#endif  /* IMM_STATS */
 
  // A large number, for the Linux kernel (~8000 functions)
#define LABELS_HASH_SIZE 10000
  /* Local list of labels (symbols) */
  struct label_entry *label_hash[LABELS_HASH_SIZE];
 
 
  /* Function prototypes for external use */
  char     *strstrip (char       *dst,
		      const char *src,
		      int         n);
 
  oraddr_t translate (oraddr_t  laddr,
		      int      *breakpoint);
 
 
  int bits (uint32_t val);
 
  void check_insn (uint32_t insn);
 
  void addprogram (oraddr_t  address,
		   uint32_t  insn,
		   int      *breakpoint);
 
  void readfile_coff (char  *filename,
		      short  sections);
 
  void readsyms_coff (char *filename, 
		      uint32_t symptr, 
		      uint32_t syms);
 
  void readfile_elf (char *filename);
 
  void identifyfile (char *filename);
 
  void init_labels ();
 
  void add_label (oraddr_t addr, char *name);
 
  struct label_entry* find_label (char *name);
  oraddr_t eval_label (char *name);
 
 
 
 
};
 
#endif	/* MEMORYLOAD__H */