72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/* mem.h --- interface to memory for M32C simulator.
|
|
|
|
Copyright (C) 2005-2015 Free Software Foundation, Inc.
|
|
Contributed by Red Hat, Inc.
|
|
|
|
This file is part of the GNU simulators.
|
|
|
|
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/>. */
|
|
|
|
enum mem_content_type {
|
|
MC_UNINIT,
|
|
MC_DATA,
|
|
MC_PUSHED_PC,
|
|
MC_NUM_TYPES
|
|
};
|
|
|
|
enum mem_ptr_action
|
|
{
|
|
MPA_WRITING,
|
|
MPA_READING,
|
|
MPA_CONTENT_TYPE,
|
|
MPA_DECODE_CACHE
|
|
};
|
|
|
|
void init_mem (void);
|
|
void mem_usage_stats (void);
|
|
unsigned long mem_usage_cycles (void);
|
|
|
|
/* rx_mem_ptr returns a pointer which is valid as long as the address
|
|
requested remains within the same page. */
|
|
#define PAGE_BITS 12
|
|
#define PAGE_SIZE (1 << PAGE_BITS)
|
|
#define NONPAGE_MASK (~(PAGE_SIZE-1))
|
|
|
|
unsigned char *rx_mem_ptr (unsigned long address, enum mem_ptr_action action);
|
|
#ifdef RXC_never
|
|
RX_Opcode_Decoded **rx_mem_decode_cache (unsigned long address);
|
|
#endif
|
|
|
|
void mem_put_qi (int address, unsigned char value);
|
|
void mem_put_hi (int address, unsigned short value);
|
|
void mem_put_psi (int address, unsigned long value);
|
|
void mem_put_si (int address, unsigned long value);
|
|
|
|
void mem_put_blk (int address, void *bufptr, int nbytes);
|
|
|
|
unsigned char mem_get_pc (int address);
|
|
|
|
unsigned char mem_get_qi (int address);
|
|
unsigned short mem_get_hi (int address);
|
|
unsigned long mem_get_psi (int address);
|
|
unsigned long mem_get_si (int address);
|
|
|
|
void mem_get_blk (int address, void *bufptr, int nbytes);
|
|
|
|
int sign_ext (int v, int bits);
|
|
|
|
void mem_set_content_type (int address, enum mem_content_type type);
|
|
void mem_set_content_range (int start_address, int end_address, enum mem_content_type type);
|
|
enum mem_content_type mem_get_content_type (int address);
|