derek.holloway
7502bf64a4
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74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/* mem.h --- interface to memory for M32C simulator.
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Copyright (C) 2005-2024 Free Software Foundation, Inc.
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Contributed by Red Hat, Inc.
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This file is part of the GNU simulators.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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enum mem_content_type {
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MC_UNINIT,
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MC_DATA,
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MC_PUSHED_PC,
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MC_NUM_TYPES
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};
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enum mem_ptr_action
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{
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MPA_WRITING,
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MPA_READING,
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MPA_CONTENT_TYPE,
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MPA_DECODE_CACHE
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};
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void init_mem (void);
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void mem_usage_stats (void);
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unsigned long mem_usage_cycles (void);
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#undef PAGE_SIZE /* Cleanup system headers. */
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/* rx_mem_ptr returns a pointer which is valid as long as the address
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requested remains within the same page. */
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#define PAGE_BITS 12
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#define PAGE_SIZE (1 << PAGE_BITS)
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#define NONPAGE_MASK (~(PAGE_SIZE-1))
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unsigned char *rx_mem_ptr (unsigned long address, enum mem_ptr_action action);
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#ifdef RXC_never
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RX_Opcode_Decoded **rx_mem_decode_cache (unsigned long address);
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#endif
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void mem_put_qi (int address, unsigned char value);
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void mem_put_hi (int address, unsigned short value);
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void mem_put_psi (int address, unsigned long value);
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void mem_put_si (int address, unsigned long value);
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void mem_put_blk (int address, void *bufptr_void, int nbytes);
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unsigned char mem_get_pc (int address);
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unsigned char mem_get_qi (int address);
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unsigned short mem_get_hi (int address);
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unsigned long mem_get_psi (int address);
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unsigned long mem_get_si (int address);
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void mem_get_blk (int address, void *bufptr_void, int nbytes);
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int sign_ext (int v, int bits);
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void mem_set_content_type (int address, enum mem_content_type type);
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void mem_set_content_range (int start_address, int end_address, enum mem_content_type type);
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enum mem_content_type mem_get_content_type (int address);
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