include/sim-d10v.h

   1 /* This file defines the interface between the d10v simulator and gdb.
   2    Copyright 1999 Free Software Foundation, Inc.
   3
   4 This file is part of GDB.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 #if !defined (SIM_D10V_H)
  21 #define SIM_D10V_H
  22
  23 #ifdef __cplusplus
  24 extern "C" { // }
  25 #endif
  26
  27 /* GDB interprets addresses as:
  28
  29    0x00xxxxxx: Physical unified memory segment     (Unified memory)
  30    0x01xxxxxx: Physical instruction memory segment (On-chip insn memory)
  31    0x02xxxxxx: Physical data memory segment        (On-chip data memory)
  32    0x10xxxxxx: Logical data address segment        (DMAP translated memory)
  33    0x11xxxxxx: Logical instruction address segment (IMAP translated memory)
  34
  35    The remote d10v board interprets addresses as:
  36
  37    0x00xxxxxx: Physical unified memory segment     (Unified memory)
  38    0x01xxxxxx: Physical instruction memory segment (On-chip insn memory)
  39    0x02xxxxxx: Physical data memory segment        (On-chip data memory)
  40
  41    The following translate a virtual DMAP/IMAP offset into a physical
  42    memory segment assigning the translated address to PHYS.  Since a
  43    memory access may cross a page boundrary the number of bytes for
  44    which the translation is applicable (or 0 for an invalid virtual
  45    offset) is returned. */
  46
  47 enum
  48   {
  49     SIM_D10V_MEMORY_UNIFIED = 0x00000000,
  50     SIM_D10V_MEMORY_INSN = 0x01000000,
  51     SIM_D10V_MEMORY_DATA = 0x02000000,
  52     SIM_D10V_MEMORY_DMAP = 0x10000000,
  53     SIM_D10V_MEMORY_IMAP = 0x11000000
  54   };
  55
  56 extern unsigned long sim_d10v_translate_dmap_addr
  57   (unsigned long offset,
  58    int nr_bytes,
  59    unsigned long *phys,
  60    unsigned long (*dmap_register) (int reg_nr));
  61
  62 extern unsigned long sim_d10v_translate_imap_addr
  63   (unsigned long offset,
  64    int nr_bytes,
  65    unsigned long *phys,
  66    unsigned long (*imap_register) (int reg_nr));
  67
  68 extern unsigned long sim_d10v_translate_addr
  69   (unsigned long vaddr,
  70    int nr_bytes,
  71    unsigned long *phys,
  72    unsigned long (*dmap_register) (int reg_nr),
  73    unsigned long (*imap_register) (int reg_nr));
  74
  75
  76 /* The simulator makes use of the following register information. */
  77
  78 enum
  79   {
  80     SIM_D10V_R0_REGNUM = 0,
  81     SIM_D10V_CR0_REGNUM = 16,
  82     SIM_D10V_A0_REGNUM = 32,
  83     SIM_D10V_SPI_REGNUM = 34,
  84     SIM_D10V_SPU_REGNUM = 35,
  85     SIM_D10V_IMAP0_REGNUM = 36,
  86     SIM_D10V_DMAP0_REGNUM = 38,
  87     SIM_D10V_TS2_DMAP_REGNUM = 40
  88   };
  89
  90 enum
  91   {
  92     SIM_D10V_NR_R_REGS = 16,
  93     SIM_D10V_NR_A_REGS = 2,
  94     SIM_D10V_NR_IMAP_REGS = 2,
  95     SIM_D10V_NR_DMAP_REGS = 4,
  96     SIM_D10V_NR_CR_REGS = 16
  97   };
  98
  99 #ifdef __cplusplus
 100 }
 101 #endif
 102
 103 #endif