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66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
/*****************************************************************************/
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/* */
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/* Atari VCS 7800 TIA & RIOT registers addresses */
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/* */
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/* Karri Kaksonen (karri@sipo.fi), 2022 */
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/* */
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/* */
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/*****************************************************************************/
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#ifndef _ATARI7800_H
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#define _ATARI7800_H
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/* Check for errors */
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#if !defined(__ATARI7800__)
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# error This module may only be used when compiling for the Atari 7800!
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#endif
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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/* Color defines */
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#define COLOR_BLACK 0x00
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#define COLOR_GREY 0x01
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#define COLOR_LIGHTGREY 0x02
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#define COLOR_WHITE 0x03
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/* TGI color defines (default palette) */
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#define TGI_COLOR_BLACK COLOR_BLACK
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#define TGI_COLOR_GREY COLOR_GREY
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#define TGI_COLOR_LIGHTGREY COLOR_LIGHTGREY
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#define TGI_COLOR_WHITE COLOR_WHITE
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/* Masks for joy_read */
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#define JOY_RIGHT_MASK 0x80
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#define JOY_LEFT_MASK 0x40
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#define JOY_DOWN_MASK 0x20
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#define JOY_UP_MASK 0x10
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#define JOY_BTN_1_MASK 0x01
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#define JOY_BTN_2_MASK 0x02
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#define JOY_BTN_A_MASK JOY_BTN_1_MASK
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#define JOY_BTN_B_MASK JOY_BTN_2_MASK
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#define JOY_BTN_A(v) ((v) & JOY_BTN_A_MASK)
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#define JOY_BTN_B(v) ((v) & JOY_BTN_B_MASK)
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/* No support for dynamically loadable drivers */
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#define DYN_DRV 0
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#include <_tia.h>
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#define TIA (*(struct __tia*)0x0000)
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#include <_riot.h>
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#define RIOT (*(struct __riot*)0x0280)
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#include <_maria.h>
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#define MARIA (*(struct __maria*)0x0020)
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/* End of atari7800.h */
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#endif
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