sim/common/cgen-mem.h

   1 /* Memory ops header for CGEN-based simulators.
   2    Copyright (C) 1996-2024 Free Software Foundation, Inc.
   3    Contributed by Cygnus Solutions.
   4
   5 This file is part of the GNU Simulators.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef CGEN_MEM_H
  21 #define CGEN_MEM_H
  22
  23 #include "symcat.h"
  24
  25 /* TODO: This should get moved into sim-inline.h.  */
  26 #ifdef MEMOPS_DEFINE_INLINE
  27 #define MEMOPS_INLINE
  28 #else
  29 #define MEMOPS_INLINE EXTERN_INLINE
  30 #endif
  31
  32 /* Integer memory read support.
  33
  34    There is no floating point support.  In this context there are no
  35    floating point modes, only floating point operations (whose arguments
  36    and results are arrays of bits that we treat as integer modes).  */
  37
  38 #define DECLARE_GETMEM_EXTERN(mode, size) \
  39 extern mode XCONCAT2 (GETMEM,mode) (SIM_CPU *, IADDR, ADDR);
  40
  41 #if defined (__GNUC__) || defined (MEMOPS_DEFINE_INLINE)
  42 #define DECLARE_GETMEM(mode, size) \
  43 DECLARE_GETMEM_EXTERN (mode, size) \
  44 MEMOPS_INLINE mode \
  45 XCONCAT2 (GETMEM,mode) (SIM_CPU *cpu, IADDR pc, ADDR a) \
  46 { \
  47   PROFILE_COUNT_READ (cpu, a, XCONCAT2 (MODE_,mode)); \
  48   /* Don't read anything into "unaligned" here.  Bad name choice.  */\
  49   return XCONCAT2 (sim_core_read_unaligned_,size) (cpu, pc, read_map, a); \
  50 }
  51 #else
  52 #define DECLARE_GETMEM(mode, size) DECLARE_GETMEM_EXTERN (mode, size)
  53 #endif
  54
  55 DECLARE_GETMEM (QI, 1)  /* TAGS: GETMEMQI */
  56 DECLARE_GETMEM (UQI, 1) /* TAGS: GETMEMUQI */
  57 DECLARE_GETMEM (HI, 2)  /* TAGS: GETMEMHI */
  58 DECLARE_GETMEM (UHI, 2) /* TAGS: GETMEMUHI */
  59 DECLARE_GETMEM (SI, 4)  /* TAGS: GETMEMSI */
  60 DECLARE_GETMEM (USI, 4) /* TAGS: GETMEMUSI */
  61 DECLARE_GETMEM (DI, 8)  /* TAGS: GETMEMDI */
  62 DECLARE_GETMEM (UDI, 8) /* TAGS: GETMEMUDI */
  63
  64 #undef DECLARE_GETMEM
  65 #undef DECLARE_GETMEM_EXTERN
  66 \f
  67 /* Integer memory write support.  */
  68
  69 #define DECLARE_SETMEM_EXTERN(mode, size) \
  70 extern void XCONCAT2 (SETMEM,mode) (SIM_CPU *, IADDR, ADDR, mode);
  71
  72 #if defined (__GNUC__) || defined (MEMOPS_DEFINE_INLINE)
  73 #define DECLARE_SETMEM(mode, size) \
  74 DECLARE_SETMEM_EXTERN (mode, size) \
  75 MEMOPS_INLINE void \
  76 XCONCAT2 (SETMEM,mode) (SIM_CPU *cpu, IADDR pc, ADDR a, mode val) \
  77 { \
  78   PROFILE_COUNT_WRITE (cpu, a, XCONCAT2 (MODE_,mode)); \
  79   /* Don't read anything into "unaligned" here.  Bad name choice.  */ \
  80   XCONCAT2 (sim_core_write_unaligned_,size) (cpu, pc, write_map, a, val); \
  81 }
  82 #else
  83 #define DECLARE_SETMEM(mode, size) DECLARE_SETMEM_EXTERN (mode, size)
  84 #endif
  85
  86 DECLARE_SETMEM (QI, 1)  /* TAGS: SETMEMQI */
  87 DECLARE_SETMEM (UQI, 1) /* TAGS: SETMEMUQI */
  88 DECLARE_SETMEM (HI, 2)  /* TAGS: SETMEMHI */
  89 DECLARE_SETMEM (UHI, 2) /* TAGS: SETMEMUHI */
  90 DECLARE_SETMEM (SI, 4)  /* TAGS: SETMEMSI */
  91 DECLARE_SETMEM (USI, 4) /* TAGS: SETMEMUSI */
  92 DECLARE_SETMEM (DI, 8)  /* TAGS: SETMEMDI */
  93 DECLARE_SETMEM (UDI, 8) /* TAGS: SETMEMUDI */
  94
  95 #undef DECLARE_SETMEM
  96 #undef DECLARE_SETMEM_EXTERN
  97 \f
  98 /* Instruction read support.  */
  99
 100 #define DECLARE_GETIMEM_EXTERN(mode, size) \
 101 extern mode XCONCAT2 (GETIMEM,mode) (SIM_CPU *, ADDR);
 102
 103 #if defined (__GNUC__) || defined (MEMOPS_DEFINE_INLINE)
 104 #define DECLARE_GETIMEM(mode, size) \
 105 DECLARE_GETIMEM_EXTERN (mode, size) \
 106 MEMOPS_INLINE mode \
 107 XCONCAT2 (GETIMEM,mode) (SIM_CPU *cpu, IADDR a) \
 108 { \
 109   /*PROFILE_COUNT_READ (cpu, a, XCONCAT2 (MODE_,mode));*/ \
 110   /* Don't read anything into "unaligned" here.  Bad name choice.  */\
 111   return XCONCAT2 (sim_core_read_unaligned_,size) (cpu, a, exec_map, a); \
 112 }
 113 #else
 114 #define DECLARE_GETIMEM(mode, size) DECLARE_GETIMEM_EXTERN (mode, size)
 115 #endif
 116
 117 DECLARE_GETIMEM (UQI, 1) /* TAGS: GETIMEMUQI */
 118 DECLARE_GETIMEM (UHI, 2) /* TAGS: GETIMEMUHI */
 119 DECLARE_GETIMEM (USI, 4) /* TAGS: GETIMEMUSI */
 120 DECLARE_GETIMEM (UDI, 8) /* TAGS: GETIMEMUDI */
 121
 122 #undef DECLARE_GETIMEM
 123 #undef DECLARE_GETIMEM_EXTERN
 124 \f
 125 /* Floating point support.
 126
 127    ??? One can specify that the integer memory ops should be used instead,
 128    and treat fp values as just a series of bits.  One might even bubble
 129    that notion up into the description language.  However, that departs from
 130    gcc.  One could cross over from gcc's notion and a "series of bits" notion
 131    between there and here, and thus still not require these routines.  However,
 132    that's a complication of its own (not that having these fns isn't).
 133    But for now, we do things this way.  */
 134
 135 #define DECLARE_GETMEM_EXTERN(mode, size) \
 136 extern mode XCONCAT2 (GETMEM,mode) (SIM_CPU *, IADDR, ADDR);
 137
 138 #if defined (__GNUC__) || defined (MEMOPS_DEFINE_INLINE)
 139 #define DECLARE_GETMEM(mode, size) \
 140 DECLARE_GETMEM_EXTERN (mode, size) \
 141 MEMOPS_INLINE mode \
 142 XCONCAT2 (GETMEM,mode) (SIM_CPU *cpu, IADDR pc, ADDR a) \
 143 { \
 144   PROFILE_COUNT_READ (cpu, a, XCONCAT2 (MODE_,mode)); \
 145   /* Don't read anything into "unaligned" here.  Bad name choice.  */\
 146   return XCONCAT2 (sim_core_read_unaligned_,size) (cpu, pc, read_map, a); \
 147 }
 148 #else
 149 #define DECLARE_GETMEM(mode, size) DECLARE_GETMEM_EXTERN (mode, size)
 150 #endif
 151
 152 DECLARE_GETMEM (SF, 4) /* TAGS: GETMEMSF */
 153 DECLARE_GETMEM (DF, 8) /* TAGS: GETMEMDF */
 154
 155 #undef DECLARE_GETMEM
 156 #undef DECLARE_GETMEM_EXTERN
 157
 158 #define DECLARE_SETMEM_EXTERN(mode, size) \
 159 extern void XCONCAT2 (SETMEM,mode) (SIM_CPU *, IADDR, ADDR, mode);
 160
 161 #if defined (__GNUC__) || defined (MEMOPS_DEFINE_INLINE)
 162 #define DECLARE_SETMEM(mode, size) \
 163 DECLARE_SETMEM_EXTERN (mode, size) \
 164 MEMOPS_INLINE void \
 165 XCONCAT2 (SETMEM,mode) (SIM_CPU *cpu, IADDR pc, ADDR a, mode val) \
 166 { \
 167   PROFILE_COUNT_WRITE (cpu, a, XCONCAT2 (MODE_,mode)); \
 168   /* Don't read anything into "unaligned" here.  Bad name choice.  */ \
 169   XCONCAT2 (sim_core_write_unaligned_,size) (cpu, pc, write_map, a, val); \
 170 }
 171 #else
 172 #define DECLARE_SETMEM(mode, size) DECLARE_SETMEM_EXTERN (mode, size
 173 #endif
 174
 175 DECLARE_SETMEM (SF, 4) /* TAGS: SETMEMSF */
 176 DECLARE_SETMEM (DF, 8) /* TAGS: SETMEMDF */
 177
 178 #undef DECLARE_SETMEM
 179 #undef DECLARE_SETMEM_EXTERN
 180 \f
 181 /* GETT<mode>: translate target value at P to host value.
 182    This needn't be very efficient (i.e. can call memcpy) as this is
 183    only used when interfacing with the outside world (e.g. gdb).  */
 184
 185 #define DECLARE_GETT_EXTERN(mode, size) \
 186 extern mode XCONCAT2 (GETT,mode) (const unsigned char *);
 187
 188 #if defined (MEMOPS_DEFINE_INLINE)
 189 #define DECLARE_GETT(mode, size) \
 190 DECLARE_GETT_EXTERN (mode, size) \
 191 mode \
 192 XCONCAT2 (GETT,mode) (const unsigned char *p) \
 193 { \
 194   mode tmp; \
 195   memcpy (&tmp, p, sizeof (mode)); \
 196   return XCONCAT2 (T2H_,size) (tmp); \
 197 }
 198 #else
 199 #define DECLARE_GETT(mode, size) DECLARE_GETT_EXTERN (mode, size)
 200 #endif
 201
 202 DECLARE_GETT (QI, 1)  /* TAGS: GETTQI */
 203 DECLARE_GETT (UQI, 1) /* TAGS: GETTUQI */
 204 DECLARE_GETT (HI, 2)  /* TAGS: GETTHI */
 205 DECLARE_GETT (UHI, 2) /* TAGS: GETTUHI */
 206 DECLARE_GETT (SI, 4)  /* TAGS: GETTSI */
 207 DECLARE_GETT (USI, 4) /* TAGS: GETTUSI */
 208 DECLARE_GETT (DI, 8)  /* TAGS: GETTDI */
 209 DECLARE_GETT (UDI, 8) /* TAGS: GETTUDI */
 210
 211 #if 0 /* ??? defered until necessary */
 212 DECLARE_GETT (SF, 4)  /* TAGS: GETTSF */
 213 DECLARE_GETT (DF, 8)  /* TAGS: GETTDF */
 214 DECLARE_GETT (TF, 16) /* TAGS: GETTTF */
 215 #endif
 216
 217 #undef DECLARE_GETT
 218 #undef DECLARE_GETT_EXTERN
 219 \f
 220 /* SETT<mode>: translate host value to target value and store at P.
 221    This needn't be very efficient (i.e. can call memcpy) as this is
 222    only used when interfacing with the outside world (e.g. gdb).  */
 223
 224 #define DECLARE_SETT_EXTERN(mode, size) \
 225 extern void XCONCAT2 (SETT,mode) (unsigned char *, mode);
 226
 227 #if defined (MEMOPS_DEFINE_INLINE)
 228 #define DECLARE_SETT(mode, size) \
 229 DECLARE_SETT_EXTERN (mode, size) \
 230 void \
 231 XCONCAT2 (SETT,mode) (unsigned char *buf, mode val) \
 232 { \
 233   mode tmp; \
 234   tmp = XCONCAT2 (H2T_,size) (val); \
 235   memcpy (buf, &tmp, sizeof (mode)); \
 236 }
 237 #else
 238 #define DECLARE_SETT(mode, size) DECLARE_SETT_EXTERN (mode, size)
 239 #endif
 240
 241 DECLARE_SETT (QI, 1)  /* TAGS: SETTQI */
 242 DECLARE_SETT (UQI, 1) /* TAGS: SETTUQI */
 243 DECLARE_SETT (HI, 2)  /* TAGS: SETTHI */
 244 DECLARE_SETT (UHI, 2) /* TAGS: SETTUHI */
 245 DECLARE_SETT (SI, 4)  /* TAGS: SETTSI */
 246 DECLARE_SETT (USI, 4) /* TAGS: SETTUSI */
 247 DECLARE_SETT (DI, 8)  /* TAGS: SETTDI */
 248 DECLARE_SETT (UDI, 8) /* TAGS: SETTUDI */
 249
 250 #if 0 /* ??? defered until necessary */
 251 DECLARE_SETT (SF, 4)  /* TAGS: SETTSF */
 252 DECLARE_SETT (DF, 8)  /* TAGS: SETTDF */
 253 DECLARE_SETT (TF, 16) /* TAGS: SETTTF */
 254 #endif
 255
 256 #undef DECLARE_SETT
 257 #undef DECLARE_SETT_EXTERN
 258
 259 #endif /* CGEN_MEM_H */