106 lines
3.8 KiB
C
106 lines
3.8 KiB
C
/* Simulator header for cgen cpus.
|
|
Copyright (C) 1998, 1999, 2007, 2008, 2009, 2010
|
|
Free Software Foundation, Inc.
|
|
Contributed by Cygnus Support.
|
|
|
|
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 CGEN_CPU_H
|
|
#define CGEN_CPU_H
|
|
|
|
/* Type of function that is ultimately called by sim_resume. */
|
|
typedef void (ENGINE_FN) (SIM_CPU *);
|
|
|
|
/* Type of function to do disassembly. */
|
|
typedef void (CGEN_DISASSEMBLER) (SIM_CPU *, const CGEN_INSN *,
|
|
const ARGBUF *, IADDR pc_, char *buf_);
|
|
|
|
/* Additional non-machine generated per-cpu data to go in SIM_CPU.
|
|
The member's name must be `cgen_cpu'. */
|
|
|
|
typedef struct {
|
|
/* Non-zero while cpu simulation is running. */
|
|
int running_p;
|
|
#define CPU_RUNNING_P(cpu) ((cpu)->cgen_cpu.running_p)
|
|
|
|
/* Instruction count. This is maintained even in fast mode to keep track
|
|
of simulator speed. */
|
|
unsigned long insn_count;
|
|
#define CPU_INSN_COUNT(cpu) ((cpu)->cgen_cpu.insn_count)
|
|
|
|
/* sim_resume handlers */
|
|
ENGINE_FN *fast_engine_fn;
|
|
#define CPU_FAST_ENGINE_FN(cpu) ((cpu)->cgen_cpu.fast_engine_fn)
|
|
ENGINE_FN *full_engine_fn;
|
|
#define CPU_FULL_ENGINE_FN(cpu) ((cpu)->cgen_cpu.full_engine_fn)
|
|
|
|
/* Maximum number of instructions per time slice.
|
|
When single stepping this is 1. If using the pbb model, this can be
|
|
more than 1. 0 means "as long as you want". */
|
|
unsigned int max_slice_insns;
|
|
#define CPU_MAX_SLICE_INSNS(cpu) ((cpu)->cgen_cpu.max_slice_insns)
|
|
|
|
/* Simulator's execution cache.
|
|
Allocate space for this even if not used as some simulators may have
|
|
one machine variant that uses the scache and another that doesn't and
|
|
we don't want members in this struct to move about. */
|
|
CPU_SCACHE scache;
|
|
|
|
/* Instruction descriptor table. */
|
|
IDESC *idesc;
|
|
#define CPU_IDESC(cpu) ((cpu)->cgen_cpu.idesc)
|
|
|
|
/* Whether the read,write,semantic entries (function pointers or computed
|
|
goto labels) have been initialized or not. */
|
|
int idesc_read_init_p;
|
|
#define CPU_IDESC_READ_INIT_P(cpu) ((cpu)->cgen_cpu.idesc_read_init_p)
|
|
int idesc_write_init_p;
|
|
#define CPU_IDESC_WRITE_INIT_P(cpu) ((cpu)->cgen_cpu.idesc_write_init_p)
|
|
int idesc_sem_init_p;
|
|
#define CPU_IDESC_SEM_INIT_P(cpu) ((cpu)->cgen_cpu.idesc_sem_init_p)
|
|
|
|
/* Cpu descriptor table.
|
|
This is a CGEN created entity that contains the description file
|
|
turned into C code and tables for our use. */
|
|
CGEN_CPU_DESC cpu_desc;
|
|
#define CPU_CPU_DESC(cpu) ((cpu)->cgen_cpu.cpu_desc)
|
|
|
|
/* Function to fetch the insn data entry in the IDESC. */
|
|
const CGEN_INSN * (*get_idata) (SIM_CPU *, int);
|
|
#define CPU_GET_IDATA(cpu) ((cpu)->cgen_cpu.get_idata)
|
|
|
|
/* Floating point support. */
|
|
CGEN_FPU fpu;
|
|
#define CGEN_CPU_FPU(cpu) (& (cpu)->cgen_cpu.fpu)
|
|
|
|
/* Disassembler. */
|
|
CGEN_DISASSEMBLER *disassembler;
|
|
#define CPU_DISASSEMBLER(cpu) ((cpu)->cgen_cpu.disassembler)
|
|
|
|
/* Queued writes for parallel write-after support. */
|
|
CGEN_WRITE_QUEUE write_queue;
|
|
#define CPU_WRITE_QUEUE(cpu) (& (cpu)->cgen_cpu.write_queue)
|
|
|
|
/* Allow slop in size calcs for case where multiple cpu types are supported
|
|
and space for the specified cpu is malloc'd at run time. */
|
|
double slop;
|
|
} CGEN_CPU;
|
|
|
|
/* Shorthand macro for fetching registers.
|
|
CPU_CGEN_HW is defined in cpu.h. */
|
|
#define CPU(x) (CPU_CGEN_HW (current_cpu)->x)
|
|
|
|
#endif /* CGEN_CPU_H */
|