-/*
- * atari.h
- *
- * Contributing authors:
- * Mark Keates
- * Freddy Offenga
- * Christian Groessler
- */
+/*****************************************************************************/
+/* */
+/* atari.h */
+/* */
+/* Atari system specific definitions */
+/* */
+/* */
+/* */
+/* (C) 2000 Mark Keates <markk@dendrite.co.uk> */
+/* Freddy Offenga <taf_offenga@yahoo.com> */
+/* Christian Groessler <cpg@aladdin.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 _ATARI_H
#define _ATARI_H
-/* Characters codes */
+
+
+/* Check for errors */
+#if !defined(__ATARI__)
+# error This module may only be used when compiling for the Atari!
+#endif
+
+
+
+/* Character codes */
#define CH_DEL 0xFE
#define CH_ESC 0x1B
#define CH_CURS_UP 28
#define CH_CURS_RIGHT 31
#define CH_TAB 0x7F /* tabulator */
-#define CH_EOL 0x0B /* end-of-line marker */
+#define CH_EOL 0x9B /* end-of-line marker */
#define CH_CLR 0x7D /* clear screen */
#define CH_BEL 0xFD /* bell */
#define CH_RUBOUT 0x7E /* back space (rubout) */
#define HUE_GREEN 12
#define HUE_YELLOWGREEN 13
#define HUE_YELLOW 14
-#define HUE_YELLOWRED 15
+#define HUE_YELLOWRED 15
-/* Color defines, similar to c64 colors */
+/* 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)
/* color register functions */
extern void __fastcall__ setcolor (unsigned char color_reg, unsigned char hue, unsigned char luminace);
extern void __fastcall__ setcolor_low (unsigned char color_reg, unsigned char color_value);
-extern unsigned char __fastcall__ getcolor (unsigned char color_reg);
+extern unsigned char __fastcall__ getcolor (unsigned char color_reg);
/* other screen functions */
+extern int __fastcall__ graphics(unsigned char mode); /* mode value same as in BASIC */
extern void __fastcall__ scroll (signed char numlines);
/* numlines > 0 scrolls up */
/* numlines < 0 scrolls down */
/* misc. functions */
-extern void save_vecs(void); /* save system vectors */
-extern void rest_vecs(void); /* restore system vectors */
-
+extern void save_vecs(void); /* save system vectors */
+extern void rest_vecs(void); /* restore system vectors */
+extern unsigned char get_ostype(void); /* get ROM version */
+extern unsigned char get_tv(void); /* get TV system */
+
+/* get_ostype return value defines (for explanation, see ostype.s) */
+/* masks */
+#define AT_OS_TYPE_MAIN 7
+#define AT_OS_TYPE_MINOR (7 << 3)
+/* AT_OS_TYPE_MAIN values */
+#define AT_OS_UNKNOWN 0
+#define AT_OS_400800 1
+#define AT_OS_1200XL 2
+#define AT_OS_XLXE 3
+/* AS_OS_TYPE_MINOR values */
+/* for 400/800 remember this are the ROM versions */
+/* to check whether the hw is PAL or NTSC, use get_tv() */
+#define AT_OS_400800PAL_A 1
+#define AT_OS_400800PAL_B 2
+#define AT_OS_400800NTSC_A 1
+#define AT_OS_400800NTSC_B 2
+#define AT_OS_1200_10 1
+#define AT_OS_1200_11 2
+#define AT_OS_XLXE_1 1
+#define AT_OS_XLXE_2 2
+#define AT_OS_XLXE_3 3
+#define AT_OS_XLXE_4 4
+
+/* get_tv return values */
+#define AT_NTSC 0
+#define AT_PAL 1
/* Define hardware */
#include <_gtia.h>
-#define GTIA (*(struct __gtia_write*)0xD000)
-#define GTIA (*(struct __gtia_read*)0xD000)
+#define GTIA_READ (*(struct __gtia_read*)0xD000)
+#define GTIA_WRITE (*(struct __gtia_write*)0xD000)
#include <_pbi.h>
#include <_pokey.h>
-#define POKEY (*(struct __pokey_write*)0xD200)
-#define POKEY (*(struct __pokey_read*)0xD200)
+#define POKEY_READ (*(struct __pokey_read*)0xD200)
+#define POKEY_WRITE (*(struct __pokey_write*)0xD200)
#include <_pia.h>
#define PIA (*(struct __pia*)0xD300)
#include <_antic.h>
#define ANTIC (*(struct __antic*)0xD400)
+/* device control block */
+struct __dcb {
+ unsigned char device; /* device id */
+ unsigned char unit; /* unit number */
+ unsigned char command; /* command */
+ unsigned char status; /* command type / status return */
+ void *buffer; /* pointer to buffer */
+ unsigned char timeout; /* device timeout in seconds */
+ unsigned char unused;
+ unsigned int xfersize; /* # of bytes to transfer */
+ unsigned char aux1; /* 1st command auxiliary byte */
+ unsigned char aux2; /* 2nd command auxiliary byte */
+};
+#define DCB (*(struct __dcb *)0x300)
+
/* End of atari.h */
-#endif
+#endif /* #ifndef _ATARI_H */
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