add atari5200.h

diff --git a/include/atari5200.h b/include/atari5200.h
new file mode 100644 (file)
index 0000000..7790952
--- /dev/null
+++ b/include/atari5200.h
@@ -0,0 +1,102 @@
+/*****************************************************************************/
+/*                                                                           */
+/*                               atari5200.h                                 */
+/*                                                                           */
+/*                   Atari 5200 system specific definitions                  */
+/*                                                                           */
+/*                                                                           */
+/*                                                                           */
+/* (C) 2014      Christian Groessler <chris@groessler.org>                   */
+/*                                                                           */
+/*                                                                           */
+/* 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 _ATARI5200_H
+#define _ATARI5200_H
+
+
+
+/* Check for errors */
+#if !defined(__ATARI5200__)
+#  error This module may only be used when compiling for the Atari 5200!
+#endif
+
+
+/* make GTIA color value */
+#define _gtia_mkcolor(hue,lum) (((hue) << 4) | ((lum) << 1))
+
+/* luminance values go from 0 (black) to 7 (white) */
+
+/* hue values */
+#define HUE_GREY        0
+#define HUE_GOLD        1
+#define HUE_GOLDORANGE  2
+#define HUE_REDORANGE   3
+#define HUE_ORANGE      4
+#define HUE_MAGENTA     5
+#define HUE_PURPLE      6
+#define HUE_BLUE        7
+#define HUE_BLUE2       8
+#define HUE_CYAN        9
+#define HUE_BLUEGREEN   10
+#define HUE_BLUEGREEN2  11
+#define HUE_GREEN       12
+#define HUE_YELLOWGREEN 13
+#define HUE_YELLOW      14
+#define HUE_YELLOWRED   15
+
+/* Color defines, similar to c64 colors (untested) */
+#define COLOR_BLACK             _gtia_mkcolor(HUE_GREY,0)
+#define COLOR_WHITE             _gtia_mkcolor(HUE_GREY,7)
+#define COLOR_RED               _gtia_mkcolor(HUE_REDORANGE,1)
+#define COLOR_CYAN              _gtia_mkcolor(HUE_CYAN,3)
+#define COLOR_VIOLET            _gtia_mkcolor(HUE_PURPLE,4)
+#define COLOR_GREEN             _gtia_mkcolor(HUE_GREEN,2)
+#define COLOR_BLUE              _gtia_mkcolor(HUE_BLUE,2)
+#define COLOR_YELLOW            _gtia_mkcolor(HUE_YELLOW,7)
+#define COLOR_ORANGE            _gtia_mkcolor(HUE_ORANGE,5)
+#define COLOR_BROWN             _gtia_mkcolor(HUE_YELLOW,2)
+#define COLOR_LIGHTRED          _gtia_mkcolor(HUE_REDORANGE,6)
+#define COLOR_GRAY1             _gtia_mkcolor(HUE_GREY,2)
+#define COLOR_GRAY2             _gtia_mkcolor(HUE_GREY,3)
+#define COLOR_LIGHTGREEN        _gtia_mkcolor(HUE_GREEN,6)
+#define COLOR_LIGHTBLUE         _gtia_mkcolor(HUE_BLUE,6)
+#define COLOR_GRAY3             _gtia_mkcolor(HUE_GREY,5)
+
+/* get_tv return values */
+#define AT_NTSC     0
+#define AT_PAL      1
+
+/* Define hardware */
+#include <_gtia.h>
+#define GTIA_READ  (*(struct __gtia_read*)0xC000)
+#define GTIA_WRITE (*(struct __gtia_write*)0xC000)
+
+#include <_pokey.h>
+#define POKEY_READ  (*(struct __pokey_read*)0xE800)
+#define POKEY_WRITE (*(struct __pokey_write*)0xE800)
+
+#include <_antic.h>
+#define ANTIC (*(struct __antic*)0xD400)
+
+/* End of atari5200.h */
+#endif /* #ifndef _ATARI5200_H */