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/* OpenRISC simulator support code header
Copyright (C) 2017-2024 Free Software Foundation, Inc.
This file is part of GDB, the GNU debugger.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef OR1K_SIM_H
#define OR1K_SIM_H
#include "symcat.h"
/* GDB register numbers. */
#define PPC_REGNUM 32
#define PC_REGNUM 33
#define SR_REGNUM 34
/* Misc. profile data. */
typedef struct
{
} OR1K_MISC_PROFILE;
/* Nop codes used in nop simulation. */
#define NOP_NOP 0x0
#define NOP_EXIT 0x1
#define NOP_REPORT 0x2
#define NOP_PUTC 0x4
#define NOP_CNT_RESET 0x5
#define NOP_GET_TICKS 0x6
#define NOP_GET_PS 0x7
#define NOP_TRACE_ON 0x8
#define NOP_TRACE_OFF 0x9
#define NOP_RANDOM 0xa
#define NOP_OR1KSIM 0xb
#define NOP_EXIT_SILENT 0xc
#define NUM_SPR 0x20000
#define SPR_GROUP_SHIFT 11
#define SPR_GROUP_FIRST(group) (((UWI) SPR_GROUP_##group) << SPR_GROUP_SHIFT)
#define SPR_ADDR(group,index) \
(SPR_GROUP_FIRST(group) | ((UWI) SPR_INDEX_##group##_##index))
/* Define word getters and setter helpers based on those from
sim/common/cgen-mem.h. */
#define GETTWI GETTSI
#define SETTWI SETTSI
void or1k_cpu_init (SIM_DESC sd, sim_cpu *current_cpu, const USI or1k_vr,
const USI or1k_upr, const USI or1k_cpucfgr);
void or1k32bf_insn_before (sim_cpu* current_cpu, SEM_PC vpc, const IDESC *idesc);
void or1k32bf_insn_after (sim_cpu* current_cpu, SEM_PC vpc, const IDESC *idesc);
void or1k32bf_fpu_error (CGEN_FPU* fpu, int status);
void or1k32bf_exception (sim_cpu *current_cpu, USI pc, USI exnum);
void or1k32bf_rfe (sim_cpu *current_cpu);
void or1k32bf_nop (sim_cpu *current_cpu, USI uimm16);
USI or1k32bf_mfspr (sim_cpu *current_cpu, USI addr);
void or1k32bf_mtspr (sim_cpu *current_cpu, USI addr, USI val);
int or1k32bf_fetch_register (sim_cpu *current_cpu, int rn, void *buf, int len);
int or1k32bf_store_register (sim_cpu *current_cpu, int rn, const void *buf,
int len);
int or1k32bf_model_or1200_u_exec (sim_cpu *current_cpu, const IDESC *idesc,
int unit_num, int referenced);
int or1k32bf_model_or1200nd_u_exec (sim_cpu *current_cpu, const IDESC *idesc,
int unit_num, int referenced);
void or1k32bf_model_insn_before (sim_cpu *current_cpu, int first_p);
void or1k32bf_model_insn_after (sim_cpu *current_cpu, int last_p, int cycles);
USI or1k32bf_h_spr_get_raw (sim_cpu *current_cpu, USI addr);
void or1k32bf_h_spr_set_raw (sim_cpu *current_cpu, USI addr, USI val);
USI or1k32bf_h_spr_field_get_raw (sim_cpu *current_cpu, USI addr, int msb,
int lsb);
void or1k32bf_h_spr_field_set_raw (sim_cpu *current_cpu, USI addr, int msb,
int lsb, USI val);
USI or1k32bf_make_load_store_addr (sim_cpu *current_cpu, USI base, SI offset,
int size);
USI or1k32bf_ff1 (sim_cpu *current_cpu, USI val);
USI or1k32bf_fl1 (sim_cpu *current_cpu, USI val);
#define OR1K_DEFAULT_MEM_SIZE 0x800000 /* 8M */
struct or1k_sim_cpu
{
OR1K_MISC_PROFILE or1k_misc_profile;
#define CPU_OR1K_MISC_PROFILE(cpu) (& OR1K_SIM_CPU (cpu)->or1k_misc_profile)
/* CPU specific parts go here.
Note that in files that don't need to access these pieces WANT_CPU_FOO
won't be defined and thus these parts won't appear. This is ok in the
sense that things work. It is a source of bugs though.
One has to of course be careful to not take the size of this
struct and no structure members accessed in non-cpu specific files can
go after here. Oh for a better language. */
UWI spr[NUM_SPR];
/* Next instruction will be in delay slot. */
BI next_delay_slot;
/* Currently in delay slot. */
BI delay_slot;
#ifdef WANT_CPU_OR1K32BF
OR1K32BF_CPU_DATA cpu_data;
#endif
};
#define OR1K_SIM_CPU(cpu) ((struct or1k_sim_cpu *) CPU_ARCH_DATA (cpu))
#endif /* OR1K_SIM_H */
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