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-rw-r--r--sim/ppc/cpu.c382
1 files changed, 0 insertions, 382 deletions
diff --git a/sim/ppc/cpu.c b/sim/ppc/cpu.c
deleted file mode 100644
index 9e9e7e7..0000000
--- a/sim/ppc/cpu.c
+++ /dev/null
@@ -1,382 +0,0 @@
-/* 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_C_
-#define _CPU_C_
-
-#include <setjmp.h>
-
-#include "cpu.h"
-#include "idecode.h"
-
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-
-struct _cpu {
-
- /* the registers */
- registers regs;
-
- /* current instruction address */
- unsigned_word program_counter;
-
- /* the memory maps */
- core *physical; /* all of memory */
- vm *virtual;
- vm_instruction_map *instruction_map; /* instructions */
- vm_data_map *data_map; /* data */
-
- /* current state of interrupt inputs */
- int external_exception_pending;
-
- /* the system this processor is contained within */
- cpu_mon *monitor;
- os_emul *os_emulation;
- psim *system;
- event_queue *events;
- int cpu_nr;
-
- /* Current CPU model information */
- model_data *model_ptr;
-
-#if WITH_IDECODE_CACHE_SIZE
- /* a cache to store cracked instructions */
- idecode_cache icache[WITH_IDECODE_CACHE_SIZE];
-#endif
-
- /* address reservation: keep the physical address and the contents
- of memory at that address */
- memory_reservation reservation;
-
- /* offset from event time to this cpu's idea of the local time */
- signed64 time_base_local_time;
- signed64 decrementer_local_time;
- event_entry_tag decrementer_event;
-
-};
-
-INLINE_CPU\
-(cpu *)
-cpu_create(psim *system,
- core *memory,
- event_queue *events,
- cpu_mon *monitor,
- os_emul *os_emulation,
- int cpu_nr)
-{
- cpu *processor = ZALLOC(cpu);
-
- /* create the virtual memory map from the core */
- processor->physical = memory;
- processor->virtual = vm_create(memory);
- processor->instruction_map = vm_create_instruction_map(processor->virtual);
- processor->data_map = vm_create_data_map(processor->virtual);
-
- if (CURRENT_MODEL_ISSUE > 0)
- processor->model_ptr = model_create (processor);
-
- /* link back to core system */
- processor->system = system;
- processor->events = events;
- processor->cpu_nr = cpu_nr;
- processor->monitor = monitor;
- processor->os_emulation = os_emulation;
-
- return processor;
-}
-
-
-INLINE_CPU\
-(void)
-cpu_init(cpu *processor)
-{
- memset(&processor->regs, 0, sizeof(processor->regs));
- /* vm init is delayed until after the device tree has been init as
- the devices may further init the cpu */
- if (CURRENT_MODEL_ISSUE > 0)
- model_init (processor->model_ptr);
-}
-
-
-/* find ones way home */
-
-INLINE_CPU\
-(psim *)
-cpu_system(cpu *processor)
-{
- return processor->system;
-}
-
-INLINE_CPU\
-(int)
-cpu_nr(cpu *processor)
-{
- return processor->cpu_nr;
-}
-
-INLINE_CPU\
-(event_queue *)
-cpu_event_queue(cpu *processor)
-{
- return processor->events;
-}
-
-INLINE_CPU\
-(cpu_mon *)
-cpu_monitor(cpu *processor)
-{
- return processor->monitor;
-}
-
-INLINE_CPU\
-(os_emul *)
-cpu_os_emulation(cpu *processor)
-{
- return processor->os_emulation;
-}
-
-INLINE_CPU\
-(model_data *)
-cpu_model(cpu *processor)
-{
- return processor->model_ptr;
-}
-
-/* The processors local concept of time */
-
-INLINE_CPU\
-(signed64)
-cpu_get_time_base(cpu *processor)
-{
- return (event_queue_time(processor->events)
- - processor->time_base_local_time);
-}
-
-INLINE_CPU\
-(void)
-cpu_set_time_base(cpu *processor,
- signed64 time_base)
-{
- processor->time_base_local_time = (event_queue_time(processor->events)
- - time_base);
-}
-
-INLINE_CPU\
-(signed32)
-cpu_get_decrementer(cpu *processor)
-{
- return (processor->decrementer_local_time
- - event_queue_time(processor->events));
-}
-
-STATIC_INLINE_CPU\
-(void)
-cpu_decrement_event(event_queue *queue,
- void *data)
-{
- cpu *processor = (cpu*)data;
- if (!decrementer_interrupt(processor)) {
- processor->decrementer_event = event_queue_schedule(processor->events,
- 1, /* NOW! */
- cpu_decrement_event,
- processor);
- }
-}
-
-INLINE_CPU\
-(void)
-cpu_set_decrementer(cpu *processor,
- signed32 decrementer)
-{
- signed64 old_decrementer = (processor->decrementer_local_time
- - event_queue_time(processor->events));
- event_queue_deschedule(processor->events, processor->decrementer_event);
- processor->decrementer_local_time = (event_queue_time(processor->events)
- + decrementer);
- if (decrementer < 0 && old_decrementer >= 0)
- /* dec interrupt occures if the sign of the decrement reg is
- changed by the load operation */
- processor->decrementer_event = event_queue_schedule(processor->events,
- 1, /* NOW! */
- cpu_decrement_event,
- processor);
- else if (decrementer >= 0)
- processor->decrementer_event = event_queue_schedule(processor->events,
- decrementer,
- cpu_decrement_event,
- processor);
-}
-
-
-/* program counter manipulation */
-
-INLINE_CPU\
-(void)
-cpu_set_program_counter(cpu *processor,
- unsigned_word new_program_counter)
-{
- processor->program_counter = new_program_counter;
-}
-
-INLINE_CPU\
-(unsigned_word)
-cpu_get_program_counter(cpu *processor)
-{
- return processor->program_counter;
-}
-
-INLINE_CPU\
-(void)
-cpu_restart(cpu *processor,
- unsigned_word nia)
-{
- processor->program_counter = nia;
- psim_restart(processor->system, processor->cpu_nr);
-}
-
-INLINE_CPU\
-(void)
-cpu_halt(cpu *processor,
- unsigned_word cia,
- stop_reason reason,
- int signal)
-{
- if (processor == NULL) {
- error("cpu_halt() processor=NULL, cia=0x%x, reason=%d, signal=%d\n",
- cia,
- reason,
- signal);
- }
- else {
- if (CURRENT_MODEL_ISSUE > 0)
- model_halt(processor->model_ptr);
-
- processor->program_counter = cia;
- psim_halt(processor->system, processor->cpu_nr, cia, reason, signal);
- }
-}
-
-
-#if WITH_IDECODE_CACHE_SIZE
-/* allow access to the cpu's instruction cache */
-INLINE_CPU\
-(idecode_cache *)
-cpu_icache_entry(cpu *processor,
- unsigned_word cia)
-{
- return &processor->icache[cia / 4 % WITH_IDECODE_CACHE_SIZE];
-}
-
-
-INLINE_CPU\
-(void)
-cpu_flush_icache(cpu *processor)
-{
- int i;
- /* force all addresses to 0xff... so that they never hit */
- for (i = 0; i < WITH_IDECODE_CACHE_SIZE; i++)
- processor->icache[i].address = MASK(0, 63);
-}
-#endif
-
-
-/* address map revelation */
-
-INLINE_CPU\
-(vm_instruction_map *)
-cpu_instruction_map(cpu *processor)
-{
- return processor->instruction_map;
-}
-
-INLINE_CPU\
-(vm_data_map *)
-cpu_data_map(cpu *processor)
-{
- return processor->data_map;
-}
-
-INLINE_CPU\
-(void)
-cpu_page_tlb_invalidate_entry(cpu *processor,
- unsigned_word ea)
-{
- vm_page_tlb_invalidate_entry(processor->virtual, ea);
-}
-
-INLINE_CPU\
-(void)
-cpu_page_tlb_invalidate_all(cpu *processor)
-{
- vm_page_tlb_invalidate_all(processor->virtual);
-}
-
-
-/* reservation access */
-
-INLINE_CPU\
-(memory_reservation *)
-cpu_reservation(cpu *processor)
-{
- return &processor->reservation;
-}
-
-
-/* register access */
-
-INLINE_CPU\
-(registers *)
-cpu_registers(cpu *processor)
-{
- return &processor->regs;
-}
-
-INLINE_CPU\
-(void)
-cpu_synchronize_context(cpu *processor)
-{
-#if (WITH_IDECODE_CACHE)
- /* kill of the cache */
- cpu_flush_icache(processor);
-#endif
-
- /* update virtual memory */
- vm_synchronize_context(processor->virtual,
- processor->regs.spr,
- processor->regs.sr,
- processor->regs.msr);
-}
-
-
-/* might again be useful one day */
-
-INLINE_CPU\
-(void)
-cpu_print_info(cpu *processor, int verbose)
-{
-}
-
-#endif /* _CPU_C_ */
generated by cgit v1.1 at 2024-12-05 17:36:01 +0000