libsidplayfp  2.2.2
c64sid.h
1 /*
2  * This file is part of libsidplayfp, a SID player engine.
3  *
4  * Copyright 2013-2021 Leandro Nini <drfiemost@users.sourceforge.net>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19  */
20 
21 #ifndef C64SID_H
22 #define C64SID_H
23 
24 #include "Banks/Bank.h"
25 
26 #include "sidcxx11.h"
27 
28 #include <cstring>
29 #include <stdint.h>
30 
31 namespace libsidplayfp
32 {
33 
37 class c64sid : public Bank
38 {
39 private:
40  uint8_t lastpoke[0x20];
41 
42 protected:
43  virtual ~c64sid() {}
44 
45  virtual uint8_t read(uint_least8_t addr) = 0;
46  virtual void write(uint_least8_t addr, uint8_t data) = 0;
47 
48 public:
49  virtual void reset(uint8_t volume) = 0;
50 
51  void reset() { memset(lastpoke, 0, 0x20); reset(0); }
52 
53  // Bank functions
54  void poke(uint_least16_t address, uint8_t value) override
55  {
56  lastpoke[address & 0x1f] = value;
57  write(address & 0x1f, value);
58  }
59  uint8_t peek(uint_least16_t address) override { return read(address & 0x1f); }
60 
61  void getStatus(uint8_t regs[0x20]) const { memcpy(regs, lastpoke, 0x20); }
62 };
63 
64 }
65 
66 #endif // C64SID_H
Definition: Bank.h:36
Definition: c64sid.h:38
void poke(uint_least16_t address, uint8_t value) override
Definition: c64sid.h:54
uint8_t peek(uint_least16_t address) override
Definition: c64sid.h:59