net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/am2904/GUIAm2904RegCTInstrDecode.java

   1 package net.mograsim.logic.model.am2900.components.am2904;
   2
   3 import static net.mograsim.logic.core.types.Bit.ONE;
   4 import static net.mograsim.logic.core.types.Bit.U;
   5 import static net.mograsim.logic.core.types.Bit.X;
   6 import static net.mograsim.logic.core.types.Bit.ZERO;
   7
   8 import java.util.Map;
   9
  10 import net.mograsim.logic.core.types.Bit;
  11 import net.mograsim.logic.core.types.BitVector;
  12 import net.mograsim.logic.core.wires.Wire.ReadEnd;
  13 import net.mograsim.logic.core.wires.Wire.ReadWriteEnd;
  14 import net.mograsim.logic.model.model.ViewModelModifiable;
  15 import net.mograsim.logic.model.model.components.atomic.SimpleRectangularHardcodedGUIComponent;
  16 import net.mograsim.logic.model.model.wires.Pin;
  17 import net.mograsim.logic.model.serializing.IndirectGUIComponentCreator;
  18 import net.mograsim.logic.model.snippets.symbolrenderers.PinNamesSymbolRenderer.PinNamesParams.Position;
  19
  20 public class GUIAm2904RegCTInstrDecode extends SimpleRectangularHardcodedGUIComponent
  21 {
  22         public GUIAm2904RegCTInstrDecode(ViewModelModifiable model, String name)
  23         {
  24                 super(model, name, "Instruction\ndecode");
  25                 setSize(80, 80);
  26                 addPin(new Pin(this, "I", 6, 0, 40), Usage.INPUT, Position.RIGHT);
  27                 // muSR MUX:
  28                 // 00: 0
  29                 // 01: 1
  30                 // 10: M
  31                 // 11: I
  32                 addPin(new Pin(this, "muSR_MUX", 2, 80, 10), Usage.OUTPUT, Position.LEFT);
  33                 addPin(new Pin(this, "muSR_OVRRET", 1, 80, 20), Usage.OUTPUT, Position.LEFT);
  34                 addPin(new Pin(this, "muSR_CINV", 1, 80, 30), Usage.OUTPUT, Position.LEFT);
  35                 addPin(new Pin(this, "muSR_WEZ", 1, 80, 40), Usage.OUTPUT, Position.LEFT);
  36                 addPin(new Pin(this, "muSR_WEC", 1, 80, 50), Usage.OUTPUT, Position.LEFT);
  37                 addPin(new Pin(this, "muSR_WEN", 1, 80, 60), Usage.OUTPUT, Position.LEFT);
  38                 addPin(new Pin(this, "muSR_WEOVR", 1, 80, 70), Usage.OUTPUT, Position.LEFT);
  39                 // MSR MUX:
  40                 // 000: 0
  41                 // 001: 1
  42                 // 010: mu
  43                 // 011: Y
  44                 // 100: I
  45                 // 101: I, invert C
  46                 // 110: Swap OVR and C
  47                 // 111: _M
  48                 addPin(new Pin(this, "MSR_MUX", 3, 20, 0), Usage.OUTPUT, Position.BOTTOM);
  49                 // TODO when is this HIGH?
  50                 addPin(new Pin(this, "OEN", 1, 60, 0), Usage.OUTPUT, Position.BOTTOM);
  51                 // CT SRC MUX:
  52                 // 00: mu
  53                 // 01: mu
  54                 // 10: M
  55                 // 11: I
  56                 addPin(new Pin(this, "Y_MUX", 2, 10, 80), Usage.OUTPUT, Position.TOP);
  57                 // CT MUX:
  58                 // see Am2900 Family Data Book, Am2904, Table 4 (CT_MUX2-0 = I3-1)
  59                 addPin(new Pin(this, "CT_MUX", 3, 30, 80), Usage.OUTPUT, Position.TOP);
  60                 addPin(new Pin(this, "CT_INV", 1, 50, 80), Usage.OUTPUT, Position.TOP);
  61                 addPin(new Pin(this, "CT_EXP", 1, 70, 80), Usage.OUTPUT, Position.TOP);
  62         }
  63
  64         @Override
  65         protected Object recalculate(Object lastState, Map<String, ReadEnd> readEnds, Map<String, ReadWriteEnd> readWriteEnds)
  66         {
  67                 Bit[] IBits = readEnds.get("I").getValues().getBits();
  68                 int IAsInt = 0;
  69                 for (int i = 0; i < 6; i++)
  70                         switch (IBits[5 - i])
  71                         {
  72                         case ONE:
  73                                 IAsInt |= 1 << i;
  74                                 break;
  75                         case U:
  76                                 for (ReadWriteEnd e : readWriteEnds.values())
  77                                         e.feedSignals(BitVector.of(U, e.length()));
  78                                 return null;
  79                         case X:
  80                         case Z:
  81                                 for (ReadWriteEnd e : readWriteEnds.values())
  82                                         e.feedSignals(BitVector.of(X, e.length()));
  83                                 return null;
  84                         case ZERO:
  85                                 break;
  86                         default:
  87                                 throw new IllegalArgumentException("Unknown enum constant: " + IBits[i]);
  88                         }
  89                 switch (IAsInt)
  90                 {
  91                 case 0:
  92                 case 2:
  93                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ONE);
  94                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
  95                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
  96                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
  97                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
  98                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
  99                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 100                         break;
 101                 case 1:
 102                         readWriteEnds.get("muSR_MUX").feedSignals(ONE, ZERO);
 103                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 104                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 105                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
 106                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
 107                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
 108                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 109                         break;
 110                 case 3:
 111                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ZERO);
 112                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 113                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 114                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
 115                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
 116                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
 117                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 118                         break;
 119                 case 6:
 120                 case 7:
 121                         readWriteEnds.get("muSR_MUX").feedSignals(ONE, ONE);
 122                         readWriteEnds.get("muSR_OVRRET").feedSignals(ONE);
 123                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 124                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
 125                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
 126                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
 127                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 128                         break;
 129                 case 8:
 130                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ZERO);
 131                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 132                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 133                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
 134                         readWriteEnds.get("muSR_WEC").feedSignals(ZERO);
 135                         readWriteEnds.get("muSR_WEN").feedSignals(ZERO);
 136                         readWriteEnds.get("muSR_WEOVR").feedSignals(ZERO);
 137                         break;
 138                 case 9:
 139                         readWriteEnds.get("muSR_MUX").feedSignals(ONE, ZERO);
 140                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 141                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 142                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
 143                         readWriteEnds.get("muSR_WEC").feedSignals(ZERO);
 144                         readWriteEnds.get("muSR_WEN").feedSignals(ZERO);
 145                         readWriteEnds.get("muSR_WEOVR").feedSignals(ZERO);
 146                         break;
 147                 case 10:
 148                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ZERO);
 149                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 150                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 151                         readWriteEnds.get("muSR_WEZ").feedSignals(ZERO);
 152                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
 153                         readWriteEnds.get("muSR_WEN").feedSignals(ZERO);
 154                         readWriteEnds.get("muSR_WEOVR").feedSignals(ZERO);
 155                         break;
 156                 case 11:
 157                         readWriteEnds.get("muSR_MUX").feedSignals(ONE, ZERO);
 158                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 159                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 160                         readWriteEnds.get("muSR_WEZ").feedSignals(ZERO);
 161                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
 162                         readWriteEnds.get("muSR_WEN").feedSignals(ZERO);
 163                         readWriteEnds.get("muSR_WEOVR").feedSignals(ZERO);
 164                         break;
 165                 case 12:
 166                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ZERO);
 167                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 168                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 169                         readWriteEnds.get("muSR_WEZ").feedSignals(ZERO);
 170                         readWriteEnds.get("muSR_WEC").feedSignals(ZERO);
 171                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
 172                         readWriteEnds.get("muSR_WEOVR").feedSignals(ZERO);
 173                         break;
 174                 case 13:
 175                         readWriteEnds.get("muSR_MUX").feedSignals(ONE, ZERO);
 176                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 177                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 178                         readWriteEnds.get("muSR_WEZ").feedSignals(ZERO);
 179                         readWriteEnds.get("muSR_WEC").feedSignals(ZERO);
 180                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
 181                         readWriteEnds.get("muSR_WEOVR").feedSignals(ZERO);
 182                         break;
 183                 case 14:
 184                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ZERO);
 185                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 186                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 187                         readWriteEnds.get("muSR_WEZ").feedSignals(ZERO);
 188                         readWriteEnds.get("muSR_WEC").feedSignals(ZERO);
 189                         readWriteEnds.get("muSR_WEN").feedSignals(ZERO);
 190                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 191                         break;
 192                 case 15:
 193                         readWriteEnds.get("muSR_MUX").feedSignals(ONE, ZERO);
 194                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 195                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 196                         readWriteEnds.get("muSR_WEZ").feedSignals(ZERO);
 197                         readWriteEnds.get("muSR_WEC").feedSignals(ZERO);
 198                         readWriteEnds.get("muSR_WEN").feedSignals(ZERO);
 199                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 200                         break;
 201                 case 24:
 202                 case 25:
 203                 case 40:
 204                 case 41:
 205                 case 56:
 206                 case 57:
 207                         readWriteEnds.get("muSR_MUX").feedSignals(ONE, ONE);
 208                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 209                         readWriteEnds.get("muSR_CINV").feedSignals(ONE);
 210                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
 211                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
 212                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
 213                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 214                         break;
 215                 default:
 216                         readWriteEnds.get("muSR_MUX").feedSignals(ONE, ONE);
 217                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 218                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 219                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
 220                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
 221                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
 222                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 223                 }
 224                 switch (IAsInt)
 225                 {
 226                 case 0:
 227                         readWriteEnds.get("MSR_MUX").feedSignals(ONE, ONE, ZERO);
 228                         break;
 229                 case 1:
 230                         readWriteEnds.get("MSR_MUX").feedSignals(ONE, ZERO, ZERO);
 231                         break;
 232                 case 2:
 233                         readWriteEnds.get("MSR_MUX").feedSignals(ZERO, ONE, ZERO);
 234                         break;
 235                 case 3:
 236                         readWriteEnds.get("MSR_MUX").feedSignals(ZERO, ZERO, ZERO);
 237                         break;
 238                 case 4:
 239                         readWriteEnds.get("MSR_MUX").feedSignals(ZERO, ONE, ONE);
 240                         break;
 241                 case 5:
 242                         readWriteEnds.get("MSR_MUX").feedSignals(ONE, ONE, ONE);
 243                         break;
 244                 case 8:
 245                 case 9:
 246                 case 24:
 247                 case 25:
 248                 case 40:
 249                 case 41:
 250                 case 56:
 251                 case 57:
 252                         readWriteEnds.get("MSR_MUX").feedSignals(ONE, ZERO, ONE);
 253                         break;
 254                 default:
 255                         readWriteEnds.get("MSR_MUX").feedSignals(ZERO, ZERO, ONE);
 256                         break;
 257                 }
 258                 readWriteEnds.get("Y_MUX").feedSignals(IBits[0], IBits[1]);
 259                 readWriteEnds.get("CT_INV").feedSignals(IBits[5]);
 260                 readWriteEnds.get("CT_MUX").feedSignals(IBits[2], IBits[3], IBits[4]);
 261                 readWriteEnds.get("CT_EXP").feedSignals((IAsInt & 0b1110) == 0b1110 ? ONE : ZERO);
 262                 return null;
 263         }
 264
 265         static
 266         {
 267                 IndirectGUIComponentCreator.setComponentSupplier(GUIAm2904RegCTInstrDecode.class.getCanonicalName(),
 268                                 (m, p, n) -> new GUIAm2904RegCTInstrDecode(m, n));
 269         }
 270 }