1 /*****************************************************************************/
5 /* Internal include file, do not use directly */
9 /* (C) 2000 Freddy Offenga <taf_offenga@yahoo.com> */
10 /* 24-Jan-2011: Christian Krueger: Added defines for Antic instruction set */
13 /* This software is provided 'as-is', without any expressed or implied */
14 /* warranty. In no event will the authors be held liable for any damages */
15 /* arising from the use of this software. */
17 /* Permission is granted to anyone to use this software for any purpose, */
18 /* including commercial applications, and to alter it and redistribute it */
19 /* freely, subject to the following restrictions: */
21 /* 1. The origin of this software must not be misrepresented; you must not */
22 /* claim that you wrote the original software. If you use this software */
23 /* in a product, an acknowledgment in the product documentation would be */
24 /* appreciated but is not required. */
25 /* 2. Altered source versions must be plainly marked as such, and must not */
26 /* be misrepresented as being the original software. */
27 /* 3. This notice may not be removed or altered from any source */
30 /*****************************************************************************/
36 /* Define a structure with the antic register offsets */
38 unsigned char dmactl; /* direct memory access control */
39 unsigned char chactl; /* character mode control */
40 unsigned char dlistl; /* display list pointer low-byte */
41 unsigned char dlisth; /* display list pointer high-byte */
42 unsigned char hscrol; /* horizontal scroll enable */
43 unsigned char vscrol; /* vertical scroll enable */
44 unsigned char unuse0; /* unused */
45 unsigned char pmbase; /* msb of p/m base address */
46 unsigned char unuse1; /* unused */
47 unsigned char chbase; /* character base address */
48 unsigned char wsync; /* wait for horizontal synchronization */
49 unsigned char vcount; /* vertical line counter */
50 unsigned char penh; /* light pen horizontal position */
51 unsigned char penv; /* light pen vertical position */
52 unsigned char nmien; /* non-maskable interrupt enable */
53 unsigned char nmires; /* nmi reset/status */
57 /* antic instruction set */
59 /* absolute instructions (non mode lines) */
60 #define DL_JMP (unsigned char) 1
61 #define DL_JVB (unsigned char) 65
63 #define DL_BLK1 (unsigned char) 0
64 #define DL_BLK2 (unsigned char) 16
65 #define DL_BLK3 (unsigned char) 32
66 #define DL_BLK4 (unsigned char) 48
67 #define DL_BLK5 (unsigned char) 64
68 #define DL_BLK6 (unsigned char) 80
69 #define DL_BLK7 (unsigned char) 96
70 #define DL_BLK8 (unsigned char) 112
72 /* absolute instructions (mode lines) */
73 #define DL_CHR40x8x1 (unsigned char) 2 /* monochrome, 40 character & 8 scanlines per mode line (GR. 0) */
74 #define DL_CHR40x10x1 (unsigned char) 3 /* monochrome, 40 character & 10 scanlines per mode line */
75 #define DL_CHR40x8x4 (unsigned char) 4 /* colour, 40 character & 8 scanlines per mode line (GR. 12) */
76 #define DL_CHR40x16x4 (unsigned char) 5 /* colour, 40 character & 16 scanlines per mode line (GR. 13) */
77 #define DL_CHR20x8x2 (unsigned char) 6 /* colour (duochrome per character), 20 character & 8 scanlines per mode line (GR. 1) */
78 #define DL_CHR20x16x2 (unsigned char) 7 /* colour (duochrome per character), 20 character & 16 scanlines per mode line (GR. 2) */
80 #define DL_MAP40x8x4 (unsigned char) 8 /* colour, 40 pixel & 8 scanlines per mode line (GR. 3) */
81 #define DL_MAP80x4x2 (unsigned char) 9 /* 'duochrome', 80 pixel & 4 scanlines per mode line (GR.4) */
82 #define DL_MAP80x4x4 (unsigned char) 10 /* colour, 80 pixel & 4 scanlines per mode line (GR.5) */
83 #define DL_MAP160x2x2 (unsigned char) 11 /* 'duochrome', 160 pixel & 2 scanlines per mode line (GR.6) */
84 #define DL_MAP160x1x2 (unsigned char) 12 /* 'duochrome', 160 pixel & 1 scanline per mode line (GR.14) */
85 #define DL_MAP160x2x4 (unsigned char) 13 /* 4 colours, 160 pixel & 2 scanlines per mode line (GR.7) */
86 #define DL_MAP160x1x4 (unsigned char) 14 /* 4 colours, 160 pixel & 1 scanline per mode line (GR.15) */
87 #define DL_MAP320x1x1 (unsigned char) 15 /* monochrome, 320 pixel & 1 scanline per mode line (GR.8) */
89 /* modifiers on mode lines */
90 #define DL_HSCROL(x) (unsigned char)((x) | 16)
91 #define DL_VSCROL(x) (unsigned char)((x) | 32)
92 #define DL_LMS(x) (unsigned char)((x) | 64)
94 /* general modifier */
95 #define DL_DLI(x) (unsigned char)((x) | 128)
98 #endif /* #ifndef __ANTIC_H */