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- /* mem.h --- interface to memory for M32C simulator.
- Copyright (C) 2005-2022 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);
- #undef PAGE_SIZE /* Cleanup system headers. */
- /* 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_void, 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_void, 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);
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