2 * Adplug - Replayer for many OPL2/OPL3 audio file formats.
3 * Copyright (C) 1999 - 2006 Simon Peter, <dn.tlp@gmx.net>, et al.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This library 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 GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 * analopl.cpp - Spectrum analyzing hardware OPL, by Simon Peter <dn.tlp@gmx.net>
24 CAnalopl::CAnalopl(unsigned short initport)
27 for(int i = 0; i < 9; i++) {
35 void CAnalopl::write(int reg, int val)
39 if(reg >= 0xb0 && reg <= 0xb8) {
40 if(!keyregs[currChip][reg - 0xb0][0] && (val & 32))
41 keyregs[currChip][reg - 0xb0][1] = 1;
43 keyregs[currChip][reg - 0xb0][1] = 0;
44 keyregs[currChip][reg - 0xb0][0] = val & 32;
47 CRealopl::write(reg, val);
50 int CAnalopl::getcarriervol(unsigned int v, unsigned int c)
52 return (hardvols[c][op_table[v]+3][0] & 63);
55 int CAnalopl::getmodulatorvol(unsigned int v, unsigned int c)
57 return (hardvols[c][op_table[v]][0] & 63);
60 bool CAnalopl::getkeyon(unsigned int v, unsigned int c)
62 if(keyregs[c][v][1]) {