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96 lines
3.2 KiB
C
96 lines
3.2 KiB
C
/*
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* mem.h - Memory interface.
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*
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* Written by
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* André Fachat <fachat@physik.tu-chemnitz.de>
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* Ettore Perazzoli <ettore@comm2000.it>
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* Andreas Boose <viceteam@t-online.de>
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*
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* This file is part of VICE, the Versatile Commodore Emulator.
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* See README for copyright notice.
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*
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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 2 of the License, or
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* (at your option) any later version.
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*
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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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*
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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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA.
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*
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*/
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#ifndef _MEM_H_
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#define _MEM_H_
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#include "../CommonVICE/types.h"
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typedef BYTE REGPARM1 read_func_t(WORD addr);
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typedef read_func_t *read_func_ptr_t;
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typedef void REGPARM2 store_func_t(WORD addr, BYTE value);
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typedef store_func_t *store_func_ptr_t;
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extern read_func_ptr_t *_mem_read_tab_ptr;
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extern store_func_ptr_t *_mem_write_tab_ptr;
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extern BYTE **_mem_read_base_tab_ptr;
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extern int *mem_read_limit_tab_ptr;
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extern BYTE mem_ram[];
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extern BYTE *mem_page_zero;
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extern BYTE *mem_page_one;
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extern BYTE *mem_color_ram_cpu;
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extern BYTE *mem_color_ram_vicii;
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extern unsigned int mem_old_reg_pc;
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extern BYTE *mem_chargen_rom_ptr;
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extern void mem_initialize_memory(void);
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extern void mem_powerup(void);
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extern int mem_load(void);
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extern void mem_get_basic_text(WORD *start, WORD *end);
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extern void mem_set_basic_text(WORD start, WORD end);
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extern void mem_toggle_watchpoints(int flag, void *context);
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extern int mem_rom_trap_allowed(WORD addr);
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extern void mem_set_bank_pointer(BYTE **base, int *limit);
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extern void mem_color_ram_to_snapshot(BYTE *color_ram);
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extern void mem_color_ram_from_snapshot(BYTE *color_ram);
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extern read_func_t rom_read, rom_trap_read, zero_read;
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extern store_func_t rom_store, rom_trap_store, zero_store;
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extern read_func_t mem_read;
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extern store_func_t mem_store;
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/* ------------------------------------------------------------------------- */
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/* Memory access functions for the monitor. */
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extern const char **mem_bank_list(void);
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extern int mem_bank_from_name(const char *name);
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extern BYTE mem_bank_read(int bank, WORD addr, void *context);
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extern BYTE mem_bank_peek(int bank, WORD addr, void *context);
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extern void mem_bank_write(int bank, WORD addr, BYTE byte, void *context);
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extern void mem_get_screen_parameter(WORD *base, BYTE *rows, BYTE *columns, int *bank);
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typedef struct mem_ioreg_list_s {
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const char *name;
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WORD start;
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WORD end;
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unsigned int next;
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} mem_ioreg_list_t;
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extern mem_ioreg_list_t *mem_ioreg_list_get(void *context);
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/* Snapshots. */
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struct snapshot_s;
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extern int mem_write_snapshot_module(struct snapshot_s *s, int save_roms);
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extern int mem_read_snapshot_module(struct snapshot_s *s);
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#endif
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