2000-07-22 19:03:03 +00:00
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/*****************************************************************************/
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/* */
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/* _6525.h */
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/* */
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/* Internal include file, do not use directly */
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/* */
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/* */
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/* */
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/* (C) 1998-2000 Ullrich von Bassewitz */
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/* Wacholderweg 14 */
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/* D-70597 Stuttgart */
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/* EMail: uz@musoftware.de */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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2000-05-28 13:40:48 +00:00
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#ifndef __6525_H
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#define __6525_H
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/* Define a structure with the 6525 register offsets. The shadow registers
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* (if port C is unused) are currently not implemented, we would need a
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* union to do that, however that would introduce an additional name.
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*/
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struct __6525 {
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unsigned char pra; /* Port register A */
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unsigned char prb; /* Port register B */
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unsigned char prc; /* Port register C */
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unsigned char ddra; /* Data direction register A */
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unsigned char ddrb; /* Data direction register B */
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unsigned char ddrc; /* Data direction register C */
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unsigned char cr; /* Control register */
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unsigned char air; /* Active interrupt register */
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};
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/* End of _6525.h */
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#endif
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