-/*
- * _antic.h
- *
- * Freddy Offenga, 4/9/2000
- *
- * Internal include file, do not use directly.
- *
- */
+/*****************************************************************************/
+/* */
+/* _antic.h */
+/* */
+/* Internal include file, do not use directly */
+/* */
+/* */
+/* */
+/* (C) 2000 Freddy Offenga <taf_offenga@yahoo.com> */
+/* 24-Jan-2011: Christian Krueger: Added defines for Antic instruction set */
+/* */
+/* */
+/* 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 __ANTIC_H
#define __ANTIC_H
-
/* Define a structure with the antic register offsets */
struct __antic {
unsigned char dmactl; /* direct memory access control */
unsigned char nmires; /* nmi reset/status */
};
-/* End of _antic.h */
-#endif
+/* antic instruction set */
+
+/* absolute instructions (non mode lines) */
+#define DL_JMP (unsigned char) 1
+#define DL_JVB (unsigned char) 65
+
+#define DL_BLK1 (unsigned char) 0
+#define DL_BLK2 (unsigned char) 16
+#define DL_BLK3 (unsigned char) 32
+#define DL_BLK4 (unsigned char) 48
+#define DL_BLK5 (unsigned char) 64
+#define DL_BLK6 (unsigned char) 80
+#define DL_BLK7 (unsigned char) 96
+#define DL_BLK8 (unsigned char) 112
+
+/* absolute instructions (mode lines) */
+#define DL_CHR40x8x1 (unsigned char) 2 /* monochrome, 40 character & 8 scanlines per mode line (GR. 0) */
+#define DL_CHR40x10x1 (unsigned char) 3 /* monochrome, 40 character & 10 scanlines per mode line */
+#define DL_CHR40x8x4 (unsigned char) 4 /* colour, 40 character & 8 scanlines per mode line (GR. 12) */
+#define DL_CHR40x16x4 (unsigned char) 5 /* colour, 40 character & 16 scanlines per mode line (GR. 13) */
+#define DL_CHR20x8x2 (unsigned char) 6 /* colour (duochrome per character), 20 character & 8 scanlines per mode line (GR. 1) */
+#define DL_CHR20x16x2 (unsigned char) 7 /* colour (duochrome per character), 20 character & 16 scanlines per mode line (GR. 2) */
+
+#define DL_MAP40x8x4 (unsigned char) 8 /* colour, 40 pixel & 8 scanlines per mode line (GR. 3) */
+#define DL_MAP80x4x2 (unsigned char) 9 /* 'duochrome', 80 pixel & 4 scanlines per mode line (GR.4) */
+#define DL_MAP80x4x4 (unsigned char) 10 /* colour, 80 pixel & 4 scanlines per mode line (GR.5) */
+#define DL_MAP160x2x2 (unsigned char) 11 /* 'duochrome', 160 pixel & 2 scanlines per mode line (GR.6) */
+#define DL_MAP160x1x2 (unsigned char) 12 /* 'duochrome', 160 pixel & 1 scanline per mode line (GR.14) */
+#define DL_MAP160x2x4 (unsigned char) 13 /* 4 colours, 160 pixel & 2 scanlines per mode line (GR.7) */
+#define DL_MAP160x1x4 (unsigned char) 14 /* 4 colours, 160 pixel & 1 scanline per mode line (GR.15) */
+#define DL_MAP320x1x1 (unsigned char) 15 /* monochrome, 320 pixel & 1 scanline per mode line (GR.8) */
+
+/* modifiers on mode lines */
+#define DL_HSCROL(x) (unsigned char)((x) | 16)
+#define DL_VSCROL(x) (unsigned char)((x) | 32)
+#define DL_LMS(x) (unsigned char)((x) | 64)
+
+/* general modifier */
+#define DL_DLI(x) (unsigned char)((x) | 128)
+
+/* End of _antic.h */
+#endif /* #ifndef __ANTIC_H */