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- /* Hey EMACS -*- linux-c -*- */
- /* $Id: mem.c 2268 2006-11-06 17:18:51Z roms $ */
- /* TiEmu - Tiemu Is an EMUlator
- *
- * Copyright (c) 2000-2001, Thomas Corvazier, Romain Liévin
- * Copyright (c) 2001-2003, Romain Liévin
- * Copyright (c) 2003, Julien Blache
- * Copyright (c) 2004, Romain Liévin
- * Copyright (c) 2005, Romain Liévin, Kevin Kofler
- * Copyright (c) 2007, Kevin Kofler
- *
- * 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
- */
- /*
- Memory management: RAM, PROM/FLASH, I/O ports and bkpts
- */
- #include <stdlib.h>
- #include <stdio.h>
- #include <string.h>
- #include <math.h>
- #include "main.h"
- #include "mem.h"
- #include "ti68k_def.h"
- #include "mem89.h"
- #include "mem92.h"
- #include "mem92p.h"
- #include "mem89tm.h"
- #include "memv2.h"
- // 000000-0fffff : RAM (128 or 256 KB)
- // 100000-1fffff :
- // 200000-2fffff : internal ROM (TI92, TI89, V200) or unused
- // 300000-3fffff : idem
- // 400000-4fffff : external ROM (TI92, TI92-II, TI92+) or unused
- // 500000-5fffff : idem
- // 600000-6fffff : memory mapped I/O (all HW)
- // 700000-7fffff : memory mapped I/O (HW2, HW3)
- // 800000-8fffff : ROM (TI89 Titanium) or unused
- // 900000-9fffff : idem
- // a00000-afffff : idem
- // b00000-bfffff : idem
- // c00000-cfffff : unused
- // d00000-dfffff : ...
- // e00000-efffff : ...
- // d00000-ffffff : unused
- static GETBYTE_FUNC get_byte_ptr; // set on memXX.c or hwprot.c
- static GETWORD_FUNC get_word_ptr;
- static GETLONG_FUNC get_long_ptr;
- GETBYTE_FUNC mem_get_byte_ptr; // set by memXX.c:tiXX_mem_init
- GETWORD_FUNC mem_get_word_ptr;
- GETLONG_FUNC mem_get_long_ptr;
- REALADR_FUNC mem_get_real_addr_ptr;
- /* Mem init/exit */
- int hw_mem_init(void)
- {
- // set banks and mappers on per calc basis
- switch(calc_type)
- {
- case TI92: ti92_mem_init(); break;
- case TI92p: ti92p_mem_init(); break;
- case TI89: ti89_mem_init(); break;
- case V200: v200_mem_init(); break;
- case TI89t: ti89t_mem_init(); break;
- default: break;
- }
- get_byte_ptr = mem_get_byte_ptr;
- get_word_ptr = mem_get_word_ptr;
- get_long_ptr = mem_get_long_ptr;
- return 0;
- }
- uint8_t* hw_get_real_address(uint32_t adr)
- {
- return mem_get_real_addr_ptr(adr);
- }
- uint32_t hw_get_long(uint32_t adr)
- {
- adr &= 0xFFFFFF;
- return get_long_ptr(adr);
- }
- uint16_t hw_get_word(uint32_t adr)
- {
- adr &= 0xFFFFFF;
- return get_word_ptr(adr);
- }
- uint8_t hw_get_byte(uint32_t adr)
- {
- adr &= 0xFFFFFF;
- return get_byte_ptr(adr);
- }
- uint8_t hw_get_byte_noexcept(uint32_t adr)
- {
- adr &= 0xFFFFFF;
- return get_byte_ptr(adr);
- }
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