sim/bpf/cpu.h

   1 /* CPU family header for bpfbf.
   2
   3 THIS FILE IS MACHINE GENERATED WITH CGEN.
   4
   5 Copyright (C) 1996-2021 Free Software Foundation, Inc.
   6
   7 This file is part of the GNU simulators.
   8
   9    This file is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3, or (at your option)
  12    any later version.
  13
  14    It is distributed in the hope that it will be useful, but WITHOUT
  15    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  16    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  17    License for more details.
  18
  19    You should have received a copy of the GNU General Public License along
  20    with this program; if not, write to the Free Software Foundation, Inc.,
  21    51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
  22
  23 */
  24
  25 #ifndef CPU_BPFBF_H
  26 #define CPU_BPFBF_H
  27
  28 /* Maximum number of instructions that are fetched at a time.
  29    This is for LIW type instructions sets (e.g. m32r).  */
  30 #define MAX_LIW_INSNS 1
  31
  32 /* Maximum number of instructions that can be executed in parallel.  */
  33 #define MAX_PARALLEL_INSNS 1
  34
  35 /* The size of an "int" needed to hold an instruction word.
  36    This is usually 32 bits, but some architectures needs 64 bits.  */
  37 typedef CGEN_INSN_LGUINT CGEN_INSN_WORD;
  38
  39 #include "cgen-engine.h"
  40
  41 /* CPU state information.  */
  42 typedef struct {
  43   /* Hardware elements.  */
  44   struct {
  45   /* General Purpose Registers */
  46   DI h_gpr[16];
  47 #define GET_H_GPR(a1) CPU (h_gpr)[a1]
  48 #define SET_H_GPR(a1, x) (CPU (h_gpr)[a1] = (x))
  49   /* program counter */
  50   UDI h_pc;
  51 #define GET_H_PC() CPU (h_pc)
  52 #define SET_H_PC(x) \
  53 do { \
  54 CPU (h_pc) = (x);\
  55 ;} while (0)
  56   } hardware;
  57 #define CPU_CGEN_HW(cpu) (& (cpu)->cpu_data.hardware)
  58 } BPFBF_CPU_DATA;
  59
  60 /* Cover fns for register access.  */
  61 DI bpfbf_h_gpr_get (SIM_CPU *, UINT);
  62 void bpfbf_h_gpr_set (SIM_CPU *, UINT, DI);
  63 UDI bpfbf_h_pc_get (SIM_CPU *);
  64 void bpfbf_h_pc_set (SIM_CPU *, UDI);
  65
  66 /* These must be hand-written.  */
  67 extern CPUREG_FETCH_FN bpfbf_fetch_register;
  68 extern CPUREG_STORE_FN bpfbf_store_register;
  69
  70 typedef struct {
  71   int empty;
  72 } MODEL_BPF_DEF_DATA;
  73
  74 /* Collection of various things for the trace handler to use.  */
  75
  76 typedef struct trace_record {
  77   IADDR pc;
  78   /* FIXME:wip */
  79 } TRACE_RECORD;
  80
  81 #endif /* CPU_BPFBF_H */