1 /*
2 * ted-timing.c - Timing related settings for the TED emulation.
3 *
4 * Written by
5 * Andreas Boose <viceteam@t-online.de>
6 * Tibor Biczo <crown@axelero.hu>
7 *
8 * This file is part of VICE, the Versatile Commodore Emulator.
9 * See README for copyright notice.
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
24 * 02111-1307 USA.
25 *
26 */
27
28 #include "vice.h"
29
30 #include "machine.h"
31 #include "plus4.h"
32 #include "resources.h"
33 #include "ted-timing.h"
34 #include "ted.h"
35 #include "tedtypes.h"
36
37 /* Number of cycles per line. */
38 #define TED_PAL_CYCLES_PER_LINE PLUS4_PAL_CYCLES_PER_LINE
39 #define TED_NTSC_CYCLES_PER_LINE PLUS4_NTSC_CYCLES_PER_LINE
40
41 /* Cycle # at which the current raster line is re-drawn. It is set to
42 `TED_CYCLES_PER_LINE', so this actually happens at the very beginning
43 (i.e. cycle 0) of the next line. */
44 #define TED_PAL_DRAW_CYCLE TED_PAL_CYCLES_PER_LINE
45 #define TED_NTSC_DRAW_CYCLE TED_NTSC_CYCLES_PER_LINE
46
ted_timing_set(machine_timing_t * machine_timing,int border_mode)47 void ted_timing_set(machine_timing_t *machine_timing, int border_mode)
48 {
49 int mode;
50
51 resources_get_int("MachineVideoStandard", &mode);
52
53 switch (mode) {
54 case MACHINE_SYNC_NTSC:
55 ted.screen_height = TED_NTSC_SCREEN_HEIGHT;
56 switch (border_mode) {
57 default:
58 case TED_NORMAL_BORDERS:
59 ted.first_displayed_line = TED_NTSC_NORMAL_FIRST_DISPLAYED_LINE;
60 ted.last_displayed_line = TED_NTSC_NORMAL_LAST_DISPLAYED_LINE;
61 ted.screen_rightborderwidth = TED_SCREEN_NTSC_NORMAL_LEFTBORDERWIDTH;
62 ted.screen_leftborderwidth = TED_SCREEN_NTSC_NORMAL_RIGHTBORDERWIDTH;
63 break;
64 case TED_FULL_BORDERS:
65 ted.first_displayed_line = TED_NTSC_FULL_FIRST_DISPLAYED_LINE;
66 ted.last_displayed_line = TED_NTSC_FULL_LAST_DISPLAYED_LINE;
67 ted.screen_rightborderwidth = TED_SCREEN_NTSC_FULL_LEFTBORDERWIDTH;
68 ted.screen_leftborderwidth = TED_SCREEN_NTSC_FULL_RIGHTBORDERWIDTH;
69 break;
70 case TED_DEBUG_BORDERS:
71 ted.first_displayed_line = TED_NTSC_DEBUG_FIRST_DISPLAYED_LINE;
72 ted.last_displayed_line = TED_NTSC_DEBUG_LAST_DISPLAYED_LINE;
73 ted.screen_rightborderwidth = TED_SCREEN_NTSC_DEBUG_LEFTBORDERWIDTH;
74 ted.screen_leftborderwidth = TED_SCREEN_NTSC_DEBUG_RIGHTBORDERWIDTH;
75 break;
76 case TED_NO_BORDERS:
77 ted.first_displayed_line = TED_NTSC_NO_BORDER_FIRST_DISPLAYED_LINE;
78 ted.last_displayed_line = TED_NTSC_NO_BORDER_LAST_DISPLAYED_LINE;
79 ted.screen_rightborderwidth = 0;
80 ted.screen_leftborderwidth = 0;
81 break;
82 }
83 ted.row_25_start_line = TED_NTSC_25ROW_START_LINE;
84 ted.row_25_stop_line = TED_NTSC_25ROW_STOP_LINE;
85 ted.row_24_start_line = TED_NTSC_24ROW_START_LINE;
86 ted.row_24_stop_line = TED_NTSC_24ROW_STOP_LINE;
87 ted.cycles_per_line = TED_NTSC_CYCLES_PER_LINE;
88 ted.draw_cycle = TED_NTSC_DRAW_CYCLE;
89 ted.first_dma_line = TED_NTSC_FIRST_DMA_LINE;
90 ted.last_dma_line = TED_NTSC_LAST_DMA_LINE;
91 ted.offset = TED_NTSC_OFFSET;
92 ted.vsync_line = TED_NTSC_VSYNC_LINE;
93 break;
94 case MACHINE_SYNC_PAL:
95 default:
96 ted.screen_height = TED_PAL_SCREEN_HEIGHT;
97 switch (border_mode) {
98 default:
99 case TED_NORMAL_BORDERS:
100 ted.first_displayed_line = TED_PAL_NORMAL_FIRST_DISPLAYED_LINE;
101 ted.last_displayed_line = TED_PAL_NORMAL_LAST_DISPLAYED_LINE;
102 ted.screen_rightborderwidth = TED_SCREEN_PAL_NORMAL_LEFTBORDERWIDTH;
103 ted.screen_leftborderwidth = TED_SCREEN_PAL_NORMAL_RIGHTBORDERWIDTH;
104 break;
105 case TED_FULL_BORDERS:
106 ted.first_displayed_line = TED_PAL_FULL_FIRST_DISPLAYED_LINE;
107 ted.last_displayed_line = TED_PAL_FULL_LAST_DISPLAYED_LINE;
108 ted.screen_rightborderwidth = TED_SCREEN_PAL_FULL_LEFTBORDERWIDTH;
109 ted.screen_leftborderwidth = TED_SCREEN_PAL_FULL_RIGHTBORDERWIDTH;
110 break;
111 case TED_DEBUG_BORDERS:
112 ted.first_displayed_line = TED_PAL_DEBUG_FIRST_DISPLAYED_LINE;
113 ted.last_displayed_line = TED_PAL_DEBUG_LAST_DISPLAYED_LINE;
114 ted.screen_rightborderwidth = TED_SCREEN_PAL_DEBUG_LEFTBORDERWIDTH;
115 ted.screen_leftborderwidth = TED_SCREEN_PAL_DEBUG_RIGHTBORDERWIDTH;
116 break;
117 case TED_NO_BORDERS:
118 ted.first_displayed_line = TED_PAL_NO_BORDER_FIRST_DISPLAYED_LINE;
119 ted.last_displayed_line = TED_PAL_NO_BORDER_LAST_DISPLAYED_LINE;
120 ted.screen_rightborderwidth = 0;
121 ted.screen_leftborderwidth = 0;
122 break;
123 }
124 ted.row_25_start_line = TED_PAL_25ROW_START_LINE;
125 ted.row_25_stop_line = TED_PAL_25ROW_STOP_LINE;
126 ted.row_24_start_line = TED_PAL_24ROW_START_LINE;
127 ted.row_24_stop_line = TED_PAL_24ROW_STOP_LINE;
128 ted.cycles_per_line = TED_PAL_CYCLES_PER_LINE;
129 ted.draw_cycle = TED_PAL_DRAW_CYCLE;
130 ted.first_dma_line = TED_PAL_FIRST_DMA_LINE;
131 ted.last_dma_line = TED_PAL_LAST_DMA_LINE;
132 ted.offset = TED_PAL_OFFSET;
133 ted.vsync_line = TED_PAL_VSYNC_LINE;
134 break;
135 }
136 }
137