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/*****************************************************************************/
/* */
/* _sid.h */
/* */
/* Internal include file, do not use directly */
/* */
/* */
/* */
/* (C) 1998-2000 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#ifndef __SID_H
#define __SID_H
/* Define a structure with the sid register offsets */
struct __sid_voice {
unsigned freq; /* Frequency */
unsigned pw; /* Pulse width */
unsigned char ctrl; /* Control register */
unsigned char ad; /* Attack/decay */
unsigned char sr; /* Sustain/release */
};
struct __sid {
struct __sid_voice v1; /* Voice 1 */
struct __sid_voice v2; /* Voice 2 */
struct __sid_voice v3; /* Voice 3 */
unsigned flt_freq; /* Filter frequency */
unsigned char flt_ctrl; /* Filter control register */
unsigned char amp; /* Amplitude */
unsigned char ad1; /* A/D converter 1 */
unsigned char ad2; /* A/D converter 2 */
unsigned char noise; /* Noise generator */
unsigned char read3; /* Value of voice 3 */
};
/* End of _sid.h */
#endif
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