1
0
mirror of https://github.com/cc65/cc65.git synced 2024-10-31 04:04:49 +00:00
cc65/include/_6551.h

56 lines
2.9 KiB
C

/*****************************************************************************/
/* */
/* _6551.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 __6551_H
#define __6551_H
/* Define a structure with the 6551 register offsets */
struct __6551 {
unsigned char data; /* Data register */
unsigned char status; /* Status register */
unsigned char cmd; /* Command register */
unsigned char ctrl; /* Control register */
};
/* End of _6551.h */
#endif