sim/sh/sim-main.h

   1 /* Moxie Simulator definition.
   2    Copyright (C) 2009-2019 Free Software Foundation, Inc.
   3
   4 This file is part of GDB, the GNU debugger.
   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 3 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, see <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef SIM_MAIN_H
  20 #define SIM_MAIN_H
  21
  22 #include "sim-basics.h"
  23 #include "sim-base.h"
  24
  25 typedef struct
  26 {
  27   int regs[20];
  28 } regstacktype;
  29
  30 typedef union
  31 {
  32
  33   struct
  34   {
  35     int regs[16];
  36     int pc;
  37
  38     /* System registers.  For sh-dsp this also includes A0 / X0 / X1 / Y0 / Y1
  39        which are located in fregs, i.e. strictly speaking, these are
  40        out-of-bounds accesses of sregs.i .  This wart of the code could be
  41        fixed by making fregs part of sregs, and including pc too - to avoid
  42        alignment repercussions - but this would cause very onerous union /
  43        structure nesting, which would only be managable with anonymous
  44        unions and structs.  */
  45     union
  46       {
  47         struct
  48           {
  49             int mach;
  50             int macl;
  51             int pr;
  52             int dummy3, dummy4;
  53             int fpul; /* A1 for sh-dsp -  but only for movs etc.  */
  54             int fpscr; /* dsr for sh-dsp */
  55           } named;
  56         int i[7];
  57       } sregs;
  58
  59     /* sh3e / sh-dsp */
  60     union fregs_u
  61       {
  62         float f[16];
  63         double d[8];
  64         int i[16];
  65       }
  66     fregs[2];
  67
  68     /* Control registers; on the SH4, ldc / stc is privileged, except when
  69        accessing gbr.  */
  70     union
  71       {
  72         struct
  73           {
  74             int sr;
  75             int gbr;
  76             int vbr;
  77             int ssr;
  78             int spc;
  79             int mod;
  80             /* sh-dsp */
  81             int rs;
  82             int re;
  83             /* sh3 */
  84             int bank[8];
  85             int dbr;            /* debug base register */
  86             int sgr;            /* saved gr15 */
  87             int ldst;           /* load/store flag (boolean) */
  88             int tbr;
  89             int ibcr;           /* sh2a bank control register */
  90             int ibnr;           /* sh2a bank number register */
  91           } named;
  92         int i[16];
  93       } cregs;
  94
  95     unsigned char *insn_end;
  96
  97     int ticks;
  98     int stalls;
  99     int memstalls;
 100     int cycles;
 101     int insts;
 102
 103     int prevlock;
 104     int thislock;
 105     int exception;
 106
 107     int end_of_registers;
 108
 109     int msize;
 110 #define PROFILE_FREQ 1
 111 #define PROFILE_SHIFT 2
 112     int profile;
 113     unsigned short *profile_hist;
 114     unsigned char *memory;
 115     int xyram_select, xram_start, yram_start;
 116     unsigned char *xmem;
 117     unsigned char *ymem;
 118     unsigned char *xmem_offset;
 119     unsigned char *ymem_offset;
 120     unsigned long bfd_mach;
 121     regstacktype *regstack;
 122   } asregs;
 123   int asints[40];
 124 } saved_state_type;
 125
 126 /* TODO: Move into sim_cpu.  */
 127 extern saved_state_type saved_state;
 128
 129 struct _sim_cpu {
 130
 131   sim_cpu_base base;
 132 };
 133
 134 struct sim_state {
 135
 136   sim_cpu *cpu[MAX_NR_PROCESSORS];
 137
 138   sim_state_base base;
 139 };
 140
 141 #endif