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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
commit071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch)
tree5deda65b8d7b04d1f4cbc534c3206d328e1267ec /sim/ppc/cpu.h
parent1730ec6b1848f0f32154277f788fb29f88d8475b (diff)
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Initial creation of sourceware repository
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diff --git a/sim/ppc/cpu.h b/sim/ppc/cpu.h
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--- a/sim/ppc/cpu.h
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-/* This file is part of the program psim.
-
- Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
-
- 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 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, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- */
-
-
-#ifndef _CPU_H_
-#define _CPU_H_
-
-#ifndef INLINE_CPU
-#define INLINE_CPU
-#endif
-
-#include "basics.h"
-#include "registers.h"
-#include "device_tree.h"
-#include "corefile.h"
-#include "vm.h"
-#include "events.h"
-#include "interrupts.h"
-#include "psim.h"
-#include "icache.h"
-#include "itable.h"
-#include "mon.h"
-#include "model.h"
-
-#ifndef CONST_ATTRIBUTE
-#define CONST_ATTRIBUTE __attribute__((__const__))
-#endif
-
-/* typedef struct _cpu cpu;
-
- Declared in basics.h because it is used opaquely throughout the
- code */
-
-
-/* Create a cpu object */
-
-INLINE_CPU cpu *cpu_create
-(psim *system,
- core *memory,
- event_queue *events,
- cpu_mon *monitor,
- int cpu_nr);
-
-INLINE_CPU void cpu_init
-(cpu *processor);
-
-/* Find our way home */
-
-INLINE_CPU psim *cpu_system
-(cpu *processor) CONST_ATTRIBUTE;
-
-INLINE_CPU cpu_mon *cpu_monitor
-(cpu *processor) CONST_ATTRIBUTE;
-
-INLINE_CPU int cpu_nr
-(cpu *processor) CONST_ATTRIBUTE;
-
-INLINE_CPU event_queue *cpu_event_queue
-(cpu *processor);
-
-
-/* The processors local concept of time */
-
-INLINE_CPU signed64 cpu_get_time_base
-(cpu *processor);
-
-INLINE_CPU void cpu_set_time_base
-(cpu *processor,
- signed64 time_base);
-
-INLINE_CPU signed32 cpu_get_decrementer
-(cpu *processor);
-
-INLINE_CPU void cpu_set_decrementer
-(cpu *processor,
- signed32 decrementer);
-
-
-/* manipulate the program counter
-
- The program counter is not included in the register file. Instead
- it is extracted and then later restored (set, reset, halt). This
- is to give the user of the cpu (and the compiler) the chance to
- minimize the need to load/store the cpu's PC value. (Especially in
- the case of a single processor) */
-
-INLINE_CPU void cpu_set_program_counter
-(cpu *processor,
- unsigned_word new_program_counter);
-
-INLINE_CPU unsigned_word cpu_get_program_counter
-(cpu *processor);
-
-INLINE_CPU void cpu_restart
-(cpu *processor,
- unsigned_word nia);
-
-INLINE_CPU void cpu_halt
-(cpu *processor,
- unsigned_word nia,
- stop_reason reason,
- int signal);
-
-
-#if WITH_IDECODE_CACHE_SIZE
-/* Return the cache entry that matches the given CIA. No guarentee
- that the cache entry actually contains the instruction for that
- address */
-
-INLINE_CPU idecode_cache *cpu_icache_entry
-(cpu *processor,
- unsigned_word cia);
-
-INLINE_CPU void cpu_flush_icache
-(cpu *processor);
-#endif
-
-
-/* reveal the processors VM:
-
- At first sight it may seem better to, instead of exposing the cpu's
- inner vm maps, to have the cpu its self provide memory manipulation
- functions. (eg cpu_instruction_fetch() cpu_data_read_4())
-
- Unfortunatly in addition to these functions is the need (for the
- debugger) to be able to read/write to memory in ways that violate
- the vm protection (eg store breakpoint instruction in the
- instruction map). */
-
-INLINE_CPU vm_data_map *cpu_data_map
-(cpu *processor);
-
-INLINE_CPU vm_instruction_map *cpu_instruction_map
-(cpu *processor);
-
-
-/* grant access to the reservation information */
-typedef struct _memory_reservation {
- int valid;
- unsigned_word addr;
- unsigned_word data;
-} memory_reservation;
-
-INLINE_CPU memory_reservation *cpu_reservation
-(cpu *processor);
-
-
-INLINE_CPU void cpu_print_info
-(cpu *processor,
- int verbose);
-
-
-/* Registers:
-
- This model exploits the PowerPC's requirement for a synchronization
- to occure after (or before) the update of any context controlling
- register. All context sync points must call the sync function
- below to when ever a synchronization point is reached */
-
-INLINE_CPU registers *cpu_registers
-(cpu *processor) CONST_ATTRIBUTE;
-
-INLINE_CPU void cpu_synchronize_context
-(cpu *processor);
-
-INLINE_CPU model_data *cpu_model
-(cpu *processor) CONST_ATTRIBUTE;
-
-#define IS_PROBLEM_STATE(PROCESSOR) \
-(CURRENT_ENVIRONMENT == OPERATING_ENVIRONMENT \
- ? (cpu_registers(PROCESSOR)->msr & msr_problem_state) \
- : 1)
-
-#define IS_64BIT_MODE(PROCESSOR) \
-(WITH_TARGET_WORD_BITSIZE == 64 \
- ? (CURRENT_ENVIRONMENT == OPERATING_ENVIRONMENT \
- ? (cpu_registers(PROCESSOR)->msr & msr_64bit_mode) \
- : 1) \
- : 0)
-
-#define IS_FP_AVAILABLE(PROCESSOR) \
-(CURRENT_ENVIRONMENT == OPERATING_ENVIRONMENT \
- ? (cpu_registers(PROCESSOR)->msr & msr_floating_point_available) \
- : 1)
-
-#endif