12static constexpr std::array<int16_t, 154 + 17> slotsScreenOff = {
13 0, 8, 16, 24, 32, 40, 48, 56, 64, 72,
14 80, 88, 96, 104, 112, 120, 164, 172, 180, 188,
15 196, 204, 212, 220, 228, 236, 244, 252, 260, 268,
16 276, 292, 300, 308, 316, 324, 332, 340, 348, 356,
17 364, 372, 380, 388, 396, 404, 420, 428, 436, 444,
18 452, 460, 468, 476, 484, 492, 500, 508, 516, 524,
19 532, 548, 556, 564, 572, 580, 588, 596, 604, 612,
20 620, 628, 636, 644, 652, 660, 676, 684, 692, 700,
21 708, 716, 724, 732, 740, 748, 756, 764, 772, 780,
22 788, 804, 812, 820, 828, 836, 844, 852, 860, 868,
23 876, 884, 892, 900, 908, 916, 932, 940, 948, 956,
24 964, 972, 980, 988, 996, 1004, 1012, 1020, 1028, 1036,
25 1044, 1060, 1068, 1076, 1084, 1092, 1100, 1108, 1116, 1124,
26 1132, 1140, 1148, 1156, 1164, 1172, 1188, 1196, 1204, 1212,
27 1220, 1228, 1268, 1276, 1284, 1292, 1300, 1308, 1316, 1324,
28 1334, 1344, 1352, 1360,
29 1368+ 0, 1368+ 8, 1368+16, 1368+ 24, 1368+ 32,
30 1368+ 40, 1368+ 48, 1368+56, 1368+ 64, 1368+ 72,
31 1368+ 80, 1368+ 88, 1368+96, 1368+104, 1368+112,
36static constexpr std::array<int16_t, 88 + 16> slotsSpritesOff = {
37 6, 14, 22, 30, 38, 46, 54, 62, 70, 78,
38 86, 94, 102, 110, 118, 162, 170, 182, 188, 214,
39 220, 246, 252, 278, 310, 316, 342, 348, 374, 380,
40 406, 438, 444, 470, 476, 502, 508, 534, 566, 572,
41 598, 604, 630, 636, 662, 694, 700, 726, 732, 758,
42 764, 790, 822, 828, 854, 860, 886, 892, 918, 950,
43 956, 982, 988, 1014, 1020, 1046, 1078, 1084, 1110, 1116,
44 1142, 1148, 1174, 1206, 1212, 1266, 1274, 1282, 1290, 1298,
45 1306, 1314, 1322, 1332, 1342, 1350, 1358, 1366,
46 1368+ 6, 1368+14, 1368+ 22, 1368+ 30, 1368+ 38,
47 1368+ 46, 1368+54, 1368+ 62, 1368+ 70, 1368+ 78,
48 1368+ 86, 1368+94, 1368+102, 1368+110, 1368+118,
57static constexpr std::array<int16_t, 88 + 17> slotsCharSpritesOff = {
58 2, 10, 18, 26, 34, 42, 50, 58, 66, 74,
59 82, 90, 98, 106, 114, 122, 166, 174, 188, 194,
60 220, 226, 252, 258, 290, 316, 322, 348, 354, 380,
61 386, 418, 444, 450, 476, 482, 508, 514, 546, 572,
62 578, 604, 610, 636, 642, 674, 700, 706, 732, 738,
63 764, 770, 802, 828, 834, 860, 866, 892, 898, 930,
64 956, 962, 988, 994, 1020, 1026, 1058, 1084, 1090, 1116,
65 1122, 1148, 1154, 1186, 1212, 1218, 1270, 1278, 1286, 1294,
66 1302, 1310, 1318, 1326, 1336, 1346, 1354, 1362,
67 1368+ 2, 1368+ 10, 1368+18, 1368+ 26, 1368+ 34,
68 1368+ 42, 1368+ 50, 1368+58, 1368+ 66, 1368+ 74,
69 1368+ 82, 1368+ 90, 1368+98, 1368+106, 1368+114,
74static constexpr std::array<int16_t, 31 + 3> slotsSpritesOn = {
75 28, 92, 162, 170, 188, 220, 252, 316, 348, 380,
76 444, 476, 508, 572, 604, 636, 700, 732, 764, 828,
77 860, 892, 956, 988, 1020, 1084, 1116, 1148, 1212, 1264,
79 1368+28, 1368+92, 1368+162,
83static constexpr std::array<int16_t, 31 + 3> slotsCharSpritesOn = {
84 32, 96, 166, 174, 188, 220, 252, 316, 348, 380,
85 444, 476, 508, 572, 604, 636, 700, 732, 764, 828,
86 860, 892, 956, 988, 1020, 1084, 1116, 1148, 1212, 1268,
88 1368+32, 1368+96, 1368+166,
92static constexpr std::array<int16_t, 47 + 10> slotsText = {
93 2, 10, 18, 26, 34, 42, 50, 58, 66, 166,
94 174, 182, 190, 198, 206, 214, 222, 312, 408, 504,
95 600, 696, 792, 888, 984, 1080, 1176, 1206, 1214, 1222,
96 1230, 1238, 1246, 1254, 1262, 1270, 1278, 1286, 1294, 1302,
97 1310, 1318, 1326, 1336, 1346, 1354, 1362,
98 1368+ 2, 1368+10, 1368+18, 1368+26, 1368+ 34,
99 1368+42, 1368+50, 1368+58, 1368+66, 1368+166,
105static constexpr std::array<int16_t, 107 + 18> slotsMsx1ScreenOff = {
106 4, 12, 20, 28, 36, 44, 52, 60, 68, 76,
107 84, 92, 100, 108, 116, 124, 132, 140, 148, 156,
108 164, 172, 180, 188, 196, 204, 220, 236, 252, 268,
109 284, 300, 316, 332, 348, 364, 380, 396, 412, 428,
110 444, 460, 476, 492, 508, 524, 540, 556, 572, 588,
111 604, 620, 636, 652, 668, 684, 700, 716, 732, 748,
112 764, 780, 796, 812, 828, 844, 860, 876, 892, 908,
113 924, 940, 956, 972, 988, 1004, 1020, 1036, 1052, 1068,
114 1084, 1100, 1116, 1132, 1148, 1164, 1180, 1196, 1212, 1228,
115 1236, 1244, 1252, 1260, 1268, 1276, 1284, 1292, 1300, 1308,
116 1316, 1324, 1332, 1340, 1348, 1356, 1364,
117 1368+ 4, 1368+ 12, 1368+ 20, 1368+ 28, 1368+ 36,
118 1368+ 44, 1368+ 52, 1368+ 60, 1368+ 68, 1368+ 76,
119 1368+ 84, 1368+ 92, 1368+100, 1368+108, 1368+116,
120 1368+124, 1368+132, 1368+140,
124static constexpr std::array<int16_t, 19 + 8> slotsMsx1Gfx12 = {
125 4, 12, 20, 28, 116, 124, 132, 140, 220, 348,
126 476, 604, 732, 860, 988, 1116, 1236, 1244, 1364,
127 1368+ 4, 1368+ 12, 1368+ 20, 1368+ 28, 1368+116,
128 1368+124, 1368+132, 1368+140,
132static constexpr std::array<int16_t, 51 + 8> slotsMsx1Gfx3 = {
133 4, 12, 20, 28, 116, 124, 132, 140, 220, 228,
134 260, 292, 324, 348, 356, 388, 420, 452, 476, 484,
135 516, 548, 580, 604, 612, 644, 676, 708, 732, 740,
136 772, 804, 836, 860, 868, 900, 932, 964, 988, 996,
137 1028, 1060, 1092, 1116, 1124, 1156, 1188, 1220, 1236, 1244,
139 1368+ 4, 1368+ 12, 1368+ 20, 1368+ 28, 1368+116,
140 1368+124, 1368+132, 1368+140,
145static constexpr std::array<int16_t, 91 + 18> slotsMsx1Text = {
146 4, 12, 20, 28, 36, 44, 52, 60, 68, 76,
147 84, 92, 100, 108, 116, 124, 132, 140, 148, 156,
148 164, 172, 180, 188, 196, 204, 212, 220, 228, 244,
149 268, 292, 316, 340, 364, 388, 412, 436, 460, 484,
150 508, 532, 556, 580, 604, 628, 652, 676, 700, 724,
151 748, 772, 796, 820, 844, 868, 892, 916, 940, 964,
152 988, 1012, 1036, 1060, 1084, 1108, 1132, 1156, 1180, 1196,
153 1204, 1212, 1220, 1228, 1236, 1244, 1252, 1260, 1268, 1276,
154 1284, 1292, 1300, 1308, 1316, 1324, 1332, 1340, 1348, 1356,
156 1368+ 4, 1368+ 12, 1368+ 20, 1368+ 28, 1368+ 36,
157 1368+ 44, 1368+ 52, 1368+ 60, 1368+ 68, 1368+ 76,
158 1368+ 84, 1368+ 92, 1368+100, 1368+108, 1368+116,
159 1368+124, 1368+132, 1368+140,
167 operator std::span<const uint8_t, NUM_DELTAS * TICKS>()
const {
return values; }
170 std::array<uint8_t, NUM_DELTAS * TICKS>
values = {};
175 constexpr CycleTable(
bool msx1, std::span<const int16_t> slots)
178 constexpr std::array<int, NUM_DELTAS> delta = {
179 0, 1, 16, 24, 28, 32, 40, 48, 64, 72, 88, 104, 120, 128, 136
183 for (
auto step : delta) {
185 while (slots[p] < step) ++p;
187 if ((slots[p] - i) < step) ++p;
188 assert((slots[p] - i) >= step);
189 unsigned t = slots[p] - i;
191 if (step <= 40) assert(
t < 256);
195 values[out++] = narrow_cast<uint8_t>(
t);
205static constexpr CycleTable tabSpritesOn (
false, slotsSpritesOn);
206static constexpr CycleTable tabSpritesOff (
false, slotsSpritesOff);
207static constexpr CycleTable tabCharSpritesOn (
false, slotsCharSpritesOn);
208static constexpr CycleTable tabCharSpritesOff(
false, slotsCharSpritesOff);
209static constexpr CycleTable tabText (
false, slotsText);
210static constexpr CycleTable tabScreenOff (
false, slotsScreenOff);
211static constexpr CycleTable tabMsx1Gfx12 (
true, slotsMsx1Gfx12);
212static constexpr CycleTable tabMsx1Gfx3 (
true, slotsMsx1Gfx3);
213static constexpr CycleTable tabMsx1Text (
true, slotsMsx1Text);
214static constexpr CycleTable tabMsx1ScreenOff (
true, slotsMsx1ScreenOff);
218[[nodiscard]]
static inline std::span<const uint8_t, NUM_DELTAS * TICKS> getTab(
const VDP& vdp)
225 bool text = mode.isTextMode();
229 if (!enabled)
return tabMsx1ScreenOff;
230 return text ? tabMsx1Text
231 : (gfx3 ? tabMsx1Gfx3
235 if (!enabled)
return tabScreenOff;
236 return bitmap ? (sprites ? tabSpritesOn
239 : (sprites ? tabCharSpritesOn
240 : tabCharSpritesOff));
245 EmuTime::param frame_, EmuTime::param time,
Delta delta,
250 auto tab = getTab(vdp);
255 EmuTime::param frame, EmuTime::param time, EmuTime::param limit,
258 auto tab = getTab(vdp);
259 return {frame, time, limit, tab};
static constexpr EmuDuration duration(unsigned ticks)
Calculates the duration of the given number of ticks at this clock's frequency.
constexpr unsigned getTicksTill_fast(EmuTime::param e) const
Same as above, only faster, Though the time interval may not be too large.
static constexpr uint8_t GRAPHIC3
constexpr bool isBitmapMode() const
Is the current mode a bitmap mode? Graphic4 and higher are bitmap modes.
VDP-VRAM access slot calculator, meant to be used in the inner loops of the VDPCmdEngine commands.
Unified implementation of MSX Video Display Processors (VDPs).
bool getBrokenCmdTiming() const
Value of the cmdTiming setting, true means commands have infinite speed.
bool spritesEnabledRegister() const
Still faster variant (just looks at the sprite-enabled-bit).
DisplayMode getDisplayMode() const
Get the display mode the VDP is in.
bool isMSX1VDP() const
Is this an MSX1 VDP?
bool isDisplayEnabled() const
Is the display enabled? Both the regular border and forced blanking by clearing the display enable bi...
EmuTime getAccessSlot(EmuTime::param frame_, EmuTime::param time, Delta delta, const VDP &vdp)
Return the time of the next available access slot that is at least 'delta' cycles later than 'time'.
Calculator getCalculator(EmuTime::param frame, EmuTime::param time, EmuTime::param limit, const VDP &vdp)
When many calls to getAccessSlot() are needed, it's more efficient to instead use this function.
constexpr auto to_underlying(E e) noexcept
std::array< uint8_t, NUM_DELTAS *TICKS > values
constexpr CycleTable(bool msx1, std::span< const int16_t > slots)
constexpr auto xrange(T e)