xref: /netbsd-src/external/gpl3/gdb.old/dist/sim/bpf/cpu.h (revision b2c35e17b976cf7ccd7250c86c6f5e95090ed636)
1 /* CPU family header for bpfbf.
2 
3 THIS FILE IS MACHINE GENERATED WITH CGEN.
4 
5 Copyright (C) 1996-2020 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 */
82