1 /*****************************************************************************/
5 /* Internal include file, do not use directly */
9 /* (C) 1998-2000 Ullrich von Bassewitz */
11 /* D-70597 Stuttgart */
12 /* EMail: uz@musoftware.de */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
41 /* Define a structure with the sid register offsets */
43 unsigned freq; /* Frequency */
44 unsigned pw; /* Pulse width */
45 unsigned char ctrl; /* Control register */
46 unsigned char ad; /* Attack/decay */
47 unsigned char sr; /* Sustain/release */
50 struct __sid_voice v1; /* Voice 1 */
51 struct __sid_voice v2; /* Voice 2 */
52 struct __sid_voice v3; /* Voice 3 */
53 unsigned flt_freq; /* Filter frequency */
54 unsigned char flt_ctrl; /* Filter control register */
55 unsigned char amp; /* Amplitude */
56 unsigned char ad1; /* A/D converter 1 */
57 unsigned char ad2; /* A/D converter 2 */
58 unsigned char noise; /* Noise generator */
59 unsigned char read3; /* Value of voice 3 */