1 /*
2 * KCemu -- The emulator for the KC85 homecomputer series and much more.
3 * Copyright (C) 1997-2010 Torsten Paul
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
19
20 #include "kc/system.h"
21
22 #include "kc/mod_r16.h"
23
ModuleSegmentedROM16k(ModuleSegmentedROM16k & tmpl)24 ModuleSegmentedROM16k::ModuleSegmentedROM16k(ModuleSegmentedROM16k &tmpl) :
25 ModuleSegmentedMemory(tmpl)
26 {
27 }
28
ModuleSegmentedROM16k(const char * filename,const char * name,byte_t id)29 ModuleSegmentedROM16k::ModuleSegmentedROM16k(const char *filename, const char *name, byte_t id) :
30 ModuleSegmentedMemory(name, id, 2, 0x2000, filename)
31 {
32 }
33
~ModuleSegmentedROM16k(void)34 ModuleSegmentedROM16k::~ModuleSegmentedROM16k(void)
35 {
36 }
37
38 int
get_segment_index(word_t addr,byte_t val)39 ModuleSegmentedROM16k::get_segment_index(word_t addr, byte_t val)
40 {
41 return (val >> 4) & 0x01;
42 }
43
44 word_t
get_base_address(word_t addr,byte_t val)45 ModuleSegmentedROM16k::get_base_address(word_t addr, byte_t val)
46 {
47 return ((val >> 6) & 3) * 0x4000;
48 }
49
50 ModuleInterface *
clone(void)51 ModuleSegmentedROM16k::clone(void)
52 {
53 return new ModuleSegmentedROM16k(*this);
54 }
55