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, "I5-0", 6, 0, 30), Usage.INPUT, Position.RIGHT);
  27                 addPin(new Pin(this, "I12-11", 2, 0, 50), Usage.INPUT, Position.RIGHT);
  28                 // muSR MUX:
  29                 // 00: 0
  30                 // 01: 1
  31                 // 10: M
  32                 // 11: I
  33                 addPin(new Pin(this, "muSR_MUX", 2, 80, 10), Usage.OUTPUT, Position.LEFT);
  34                 addPin(new Pin(this, "muSR_OVRRET", 1, 80, 20), Usage.OUTPUT, Position.LEFT);
  35                 addPin(new Pin(this, "muSR_CINV", 1, 80, 30), Usage.OUTPUT, Position.LEFT);
  36                 addPin(new Pin(this, "muSR_WEZ", 1, 80, 40), Usage.OUTPUT, Position.LEFT);
  37                 addPin(new Pin(this, "muSR_WEC", 1, 80, 50), Usage.OUTPUT, Position.LEFT);
  38                 addPin(new Pin(this, "muSR_WEN", 1, 80, 60), Usage.OUTPUT, Position.LEFT);
  39                 addPin(new Pin(this, "muSR_WEOVR", 1, 80, 70), Usage.OUTPUT, Position.LEFT);
  40                 // MSR MUX:
  41                 // 000: 0
  42                 // 001: 1
  43                 // 010: mu
  44                 // 011: Y
  45                 // 100: I
  46                 // 101: I, invert C
  47                 // 110: Swap OVR and C
  48                 // 111: _M
  49                 addPin(new Pin(this, "MSR_MUX", 3, 20, 0), Usage.OUTPUT, Position.BOTTOM);
  50                 addPin(new Pin(this, "OEN", 1, 60, 0), Usage.OUTPUT, Position.BOTTOM);
  51                 // Y 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, 40, 80), Usage.OUTPUT, Position.TOP);
  61                 addPin(new Pin(this, "CT_EXP", 1, 50, 80), Usage.OUTPUT, Position.TOP);
  62                 // C0 MUX:
  63                 // 00xx: 0
  64                 // 01xx: 1
  65                 // 10xx: CX
  66                 // 1100: muC
  67                 // 1101: _muC
  68                 // 1110: MC
  69                 // 1111: _MC
  70                 addPin(new Pin(this, "C0_MUX", 4, 70, 80), Usage.OUTPUT, Position.TOP);
  71         }
  72
  73         @Override
  74         protected Object recalculate(Object lastState, Map<String, ReadEnd> readEnds, Map<String, ReadWriteEnd> readWriteEnds)
  75         {
  76                 Bit[] I5_0Bits = readEnds.get("I5-0").getValues().getBits();
  77                 Bit[] I12_11Bits = readEnds.get("I12-11").getValues().getBits();
  78                 int IAsInt = 0;
  79                 for (int i = 0; i < 6; i++)
  80                         switch (I5_0Bits[5 - i])
  81                         {
  82                         case ONE:
  83                                 IAsInt |= 1 << i;
  84                                 break;
  85                         case U:
  86                                 for (ReadWriteEnd e : readWriteEnds.values())
  87                                         e.feedSignals(BitVector.of(U, e.width()));
  88                                 return null;
  89                         case X:
  90                         case Z:
  91                                 for (ReadWriteEnd e : readWriteEnds.values())
  92                                         e.feedSignals(BitVector.of(X, e.width()));
  93                                 return null;
  94                         case ZERO:
  95                                 break;
  96                         default:
  97                                 throw new IllegalArgumentException("Unknown enum constant: " + I5_0Bits[i]);
  98                         }
  99                 switch (IAsInt)
 100                 {
 101                 case 0:
 102                 case 2:
 103                         readWriteEnds.get("muSR_MUX").feedSignals(ONE, ZERO);
 104                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 105                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 106                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
 107                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
 108                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
 109                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 110                         break;
 111                 case 1:
 112                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ONE);
 113                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 114                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 115                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
 116                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
 117                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
 118                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 119                         break;
 120                 case 3:
 121                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ZERO);
 122                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 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 6:
 130                 case 7:
 131                         readWriteEnds.get("muSR_MUX").feedSignals(ONE, ONE);
 132                         readWriteEnds.get("muSR_OVRRET").feedSignals(ONE);
 133                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 134                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
 135                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
 136                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
 137                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 138                         break;
 139                 case 8:
 140                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ZERO);
 141                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 142                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 143                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
 144                         readWriteEnds.get("muSR_WEC").feedSignals(ZERO);
 145                         readWriteEnds.get("muSR_WEN").feedSignals(ZERO);
 146                         readWriteEnds.get("muSR_WEOVR").feedSignals(ZERO);
 147                         break;
 148                 case 9:
 149                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ONE);
 150                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 151                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 152                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
 153                         readWriteEnds.get("muSR_WEC").feedSignals(ZERO);
 154                         readWriteEnds.get("muSR_WEN").feedSignals(ZERO);
 155                         readWriteEnds.get("muSR_WEOVR").feedSignals(ZERO);
 156                         break;
 157                 case 10:
 158                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ZERO);
 159                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 160                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 161                         readWriteEnds.get("muSR_WEZ").feedSignals(ZERO);
 162                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
 163                         readWriteEnds.get("muSR_WEN").feedSignals(ZERO);
 164                         readWriteEnds.get("muSR_WEOVR").feedSignals(ZERO);
 165                         break;
 166                 case 11:
 167                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ONE);
 168                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 169                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 170                         readWriteEnds.get("muSR_WEZ").feedSignals(ZERO);
 171                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
 172                         readWriteEnds.get("muSR_WEN").feedSignals(ZERO);
 173                         readWriteEnds.get("muSR_WEOVR").feedSignals(ZERO);
 174                         break;
 175                 case 12:
 176                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ZERO);
 177                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 178                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 179                         readWriteEnds.get("muSR_WEZ").feedSignals(ZERO);
 180                         readWriteEnds.get("muSR_WEC").feedSignals(ZERO);
 181                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
 182                         readWriteEnds.get("muSR_WEOVR").feedSignals(ZERO);
 183                         break;
 184                 case 13:
 185                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ONE);
 186                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 187                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 188                         readWriteEnds.get("muSR_WEZ").feedSignals(ZERO);
 189                         readWriteEnds.get("muSR_WEC").feedSignals(ZERO);
 190                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
 191                         readWriteEnds.get("muSR_WEOVR").feedSignals(ZERO);
 192                         break;
 193                 case 14:
 194                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ZERO);
 195                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 196                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 197                         readWriteEnds.get("muSR_WEZ").feedSignals(ZERO);
 198                         readWriteEnds.get("muSR_WEC").feedSignals(ZERO);
 199                         readWriteEnds.get("muSR_WEN").feedSignals(ZERO);
 200                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 201                         break;
 202                 case 15:
 203                         readWriteEnds.get("muSR_MUX").feedSignals(ZERO, ONE);
 204                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 205                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 206                         readWriteEnds.get("muSR_WEZ").feedSignals(ZERO);
 207                         readWriteEnds.get("muSR_WEC").feedSignals(ZERO);
 208                         readWriteEnds.get("muSR_WEN").feedSignals(ZERO);
 209                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 210                         break;
 211                 case 24:
 212                 case 25:
 213                 case 40:
 214                 case 41:
 215                 case 56:
 216                 case 57:
 217                         readWriteEnds.get("muSR_MUX").feedSignals(ONE, ONE);
 218                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 219                         readWriteEnds.get("muSR_CINV").feedSignals(ONE);
 220                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
 221                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
 222                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
 223                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 224                         break;
 225                 default:
 226                         readWriteEnds.get("muSR_MUX").feedSignals(ONE, ONE);
 227                         readWriteEnds.get("muSR_OVRRET").feedSignals(ZERO);
 228                         readWriteEnds.get("muSR_CINV").feedSignals(ZERO);
 229                         readWriteEnds.get("muSR_WEZ").feedSignals(ONE);
 230                         readWriteEnds.get("muSR_WEC").feedSignals(ONE);
 231                         readWriteEnds.get("muSR_WEN").feedSignals(ONE);
 232                         readWriteEnds.get("muSR_WEOVR").feedSignals(ONE);
 233                 }
 234                 switch (IAsInt)
 235                 {
 236                 case 0:
 237                         readWriteEnds.get("MSR_MUX").feedSignals(ZERO, ONE, ONE);
 238                         break;
 239                 case 1:
 240                         readWriteEnds.get("MSR_MUX").feedSignals(ZERO, ZERO, ONE);
 241                         break;
 242                 case 2:
 243                         readWriteEnds.get("MSR_MUX").feedSignals(ZERO, ONE, ZERO);
 244                         break;
 245                 case 3:
 246                         readWriteEnds.get("MSR_MUX").feedSignals(ZERO, ZERO, ZERO);
 247                         break;
 248                 case 4:
 249                         readWriteEnds.get("MSR_MUX").feedSignals(ONE, ONE, ZERO);
 250                         break;
 251                 case 5:
 252                         readWriteEnds.get("MSR_MUX").feedSignals(ONE, ONE, ONE);
 253                         break;
 254                 case 8:
 255                 case 9:
 256                 case 24:
 257                 case 25:
 258                 case 40:
 259                 case 41:
 260                 case 56:
 261                 case 57:
 262                         readWriteEnds.get("MSR_MUX").feedSignals(ONE, ZERO, ONE);
 263                         break;
 264                 default:
 265                         readWriteEnds.get("MSR_MUX").feedSignals(ONE, ZERO, ZERO);
 266                         break;
 267                 }
 268                 readWriteEnds.get("OEN").feedSignals(I5_0Bits[0].or(I5_0Bits[1]).or(I5_0Bits[2]).or(I5_0Bits[3]).or(I5_0Bits[4]).or(I5_0Bits[5]));
 269                 readWriteEnds.get("Y_MUX").feedSignals(I5_0Bits[0], I5_0Bits[1]);
 270                 readWriteEnds.get("CT_INV").feedSignals(I5_0Bits[5]);
 271                 readWriteEnds.get("CT_MUX").feedSignals(I5_0Bits[2], I5_0Bits[3], I5_0Bits[4]);
 272                 readWriteEnds.get("CT_EXP").feedSignals((IAsInt & 0b1110) == 0b1110 ? ONE : ZERO);
 273                 readWriteEnds.get("C0_MUX").feedSignals(I12_11Bits[0], I12_11Bits[1], I5_0Bits[0],
 274                                 I5_0Bits[2].and(I5_0Bits[3].not()).and(I5_0Bits[4].not()));
 275                 return null;
 276         }
 277
 278         static
 279         {
 280                 IndirectGUIComponentCreator.setComponentSupplier(GUIAm2904RegCTInstrDecode.class.getCanonicalName(),
 281                                 (m, p, n) -> new GUIAm2904RegCTInstrDecode(m, n));
 282         }
 283 }