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-rw-r--r--sim/common/sim-model.h141
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diff --git a/sim/common/sim-model.h b/sim/common/sim-model.h
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-/* Architecture, machine, and model support.
- Copyright (C) 1997, 1998, 1999 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 2, 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, write to the Free Software Foundation, Inc.,
-59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-/* Nomenclature:
- architecture = one of sparc, mips, sh, etc.
- in the sparc architecture, mach = one of v6, v7, v8, sparclite, etc.
- in the v8 mach, model = one of supersparc, etc.
-*/
-
-/* This file is intended to be included by sim-basics.h. */
-
-#ifndef SIM_MODEL_H
-#define SIM_MODEL_H
-
-/* Function unit and instruction timing support.
- ??? This is obviously insufficiently general.
- It's useful but it needs elaborating upon. */
-
-typedef struct {
- unsigned char name; /* actually a UNIT_TYPE enum */
- unsigned char issue;
- unsigned char done;
-} UNIT;
-
-#ifndef MAX_UNITS
-#define MAX_UNITS 1
-#endif
-
-typedef int (MODEL_FN) (sim_cpu *, void *);
-
-typedef struct {
- /* This is an integer that identifies this insn.
- How this works is up to the target. */
- int num;
-
- /* Function to handle insn-specific profiling. */
- MODEL_FN *model_fn;
-
- /* Array of function units used by this insn. */
- UNIT units[MAX_UNITS];
-} INSN_TIMING;
-
-/* Struct to describe various implementation properties of a cpu.
- When multiple cpu variants are supported, the sizes of some structs
- can vary. */
-
-typedef struct {
- /* The size of the SIM_CPU struct. */
- int sim_cpu_size;
-#define IMP_PROPS_SIM_CPU_SIZE(cpu_props) ((cpu_props)->sim_cpu_size)
- /* An SCACHE element can vary in size, depending on the selected cpu.
- This is zero if the SCACHE isn't in use for this variant. */
- int scache_elm_size;
-#define IMP_PROPS_SCACHE_ELM_SIZE(cpu_props) ((cpu_props)->scache_elm_size)
-} MACH_IMP_PROPERTIES;
-
-/* A machine variant. */
-
-typedef struct {
- const char *name;
-#define MACH_NAME(m) ((m)->name)
- /* This is the argument to bfd_scan_arch. */
- const char *bfd_name;
-#define MACH_BFD_NAME(m) ((m)->bfd_name)
- enum mach_attr num;
-#define MACH_NUM(m) ((m)->num)
-
- int word_bitsize;
-#define MACH_WORD_BITSIZE(m) ((m)->word_bitsize)
- int addr_bitsize;
-#define MACH_ADDR_BITSIZE(m) ((m)->addr_bitsize)
-
- /* Pointer to null-entry terminated table of models of this mach.
- The default is the first one. */
- const struct model *models;
-#define MACH_MODELS(m) ((m)->models)
-
- /* Pointer to the implementation properties of this mach. */
- const MACH_IMP_PROPERTIES *imp_props;
-#define MACH_IMP_PROPS(m) ((m)->imp_props)
-
- /* Called by sim_model_set when the model of a cpu is set. */
- void (* init_cpu) (sim_cpu *);
-#define MACH_INIT_CPU(m) ((m)->init_cpu)
-
- /* Initialize the simulator engine for this cpu.
- Used by cgen simulators to initialize the insn descriptor table. */
- void (* prepare_run) (sim_cpu *);
-#define MACH_PREPARE_RUN(m) ((m)->prepare_run)
-} MACH;
-
-/* A model (implementation) of a machine. */
-
-typedef struct model {
- const char *name;
-#define MODEL_NAME(m) ((m)->name)
- const MACH *mach;
-#define MODEL_MACH(m) ((m)->mach)
- /* An enum that distinguished the model. */
- int num;
-#define MODEL_NUM(m) ((m)->num)
- /* Pointer to timing table for this model. */
- const INSN_TIMING *timing;
-#define MODEL_TIMING(m) ((m)->timing)
- void (* init) (sim_cpu *);
-#define MODEL_INIT(m) ((m)->init)
-} MODEL;
-
-/* Tables of supported machines. */
-/* ??? In a simulator of multiple architectures, will need multiple copies of
- this. Have an `archs' array that contains a pointer to the machs array
- for each (which in turn has a pointer to the models array for each). */
-extern const MACH *sim_machs[];
-
-/* Model module handlers. */
-extern MODULE_INSTALL_FN sim_model_install;
-
-/* Support routines. */
-extern void sim_model_set (SIM_DESC sd_, sim_cpu *cpu_, const MODEL *model_);
-extern const MODEL * sim_model_lookup (const char *name_);
-extern const MACH * sim_mach_lookup (const char *name_);
-extern const MACH * sim_mach_lookup_bfd_name (const char *bfd_name_);
-
-#endif /* SIM_MODEL_H */