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1 /*****************************************************************************/
2 /*                                                                           */
3 /*                               atari5200.h                                 */
4 /*                                                                           */
5 /*                   Atari 5200 system specific definitions                  */
6 /*                                                                           */
7 /*                                                                           */
8 /*                                                                           */
9 /* (C) 2014      Christian Groessler <chris@groessler.org>                   */
10 /*                                                                           */
11 /*                                                                           */
12 /* This software is provided 'as-is', without any expressed or implied       */
13 /* warranty.  In no event will the authors be held liable for any damages    */
14 /* arising from the use of this software.                                    */
15 /*                                                                           */
16 /* Permission is granted to anyone to use this software for any purpose,     */
17 /* including commercial applications, and to alter it and redistribute it    */
18 /* freely, subject to the following restrictions:                            */
19 /*                                                                           */
20 /* 1. The origin of this software must not be misrepresented; you must not   */
21 /*    claim that you wrote the original software. If you use this software   */
22 /*    in a product, an acknowledgment in the product documentation would be  */
23 /*    appreciated but is not required.                                       */
24 /* 2. Altered source versions must be plainly marked as such, and must not   */
25 /*    be misrepresented as being the original software.                      */
26 /* 3. This notice may not be removed or altered from any source              */
27 /*    distribution.                                                          */
28 /*                                                                           */
29 /*****************************************************************************/
30
31
32
33 #ifndef _ATARI5200_H
34 #define _ATARI5200_H
35
36
37
38 /* Check for errors */
39 #if !defined(__ATARI5200__)
40 #  error This module may only be used when compiling for the Atari 5200!
41 #endif
42
43 /* no support for dynamically loadable drivers */
44 #define DYN_DRV 0
45
46 /* the addresses of the static drivers */
47 extern void atr5200std_joy[];        /* referred to by joy_static_stddrv[] */
48
49 /* Masks for joy_read */
50 #define JOY_UP_MASK     0x01
51 #define JOY_DOWN_MASK   0x02
52 #define JOY_LEFT_MASK   0x04
53 #define JOY_RIGHT_MASK  0x08
54 #define JOY_BTN_1_MASK  0x10
55
56 /* get_tv return values */
57 #define AT_NTSC     0
58 #define AT_PAL      1
59
60 /* Define hardware */
61 #include <_gtia.h>
62 #define GTIA_READ  (*(struct __gtia_read*)0xC000)
63 #define GTIA_WRITE (*(struct __gtia_write*)0xC000)
64
65 #include <_pokey.h>
66 #define POKEY_READ  (*(struct __pokey_read*)0xE800)
67 #define POKEY_WRITE (*(struct __pokey_write*)0xE800)
68
69 #include <_antic.h>
70 #define ANTIC (*(struct __antic*)0xD400)
71
72 /* End of atari5200.h */
73 #endif