--- /dev/null
+package net.mograsim.logic.model.am2900.components.am2904;
+
+import static net.mograsim.logic.core.types.Bit.ONE;
+import static net.mograsim.logic.core.types.Bit.U;
+import static net.mograsim.logic.core.types.Bit.X;
+import static net.mograsim.logic.core.types.Bit.Z;
+import static net.mograsim.logic.core.types.Bit.ZERO;
+
+import java.util.Map;
+
+import net.mograsim.logic.core.types.Bit;
+import net.mograsim.logic.core.types.BitVector;
+import net.mograsim.logic.core.wires.CoreWire.ReadEnd;
+import net.mograsim.logic.core.wires.CoreWire.ReadWriteEnd;
+import net.mograsim.logic.model.model.ViewModelModifiable;
+import net.mograsim.logic.model.model.components.atomic.SimpleRectangularHardcodedModelComponent;
+import net.mograsim.logic.model.model.wires.Pin;
+import net.mograsim.logic.model.model.wires.PinUsage;
+import net.mograsim.logic.model.serializing.IndirectModelComponentCreator;
+import net.mograsim.logic.model.snippets.symbolrenderers.PinNamesSymbolRenderer.PinNamesParams.Position;
+
+public class ModelAm2904ShiftInstrDecode extends SimpleRectangularHardcodedModelComponent
+{
+ public ModelAm2904ShiftInstrDecode(ViewModelModifiable model, String name)
+ {
+ super(model, "Am2904ShiftInstrDecode", name, "Shift \ninstruction\ndecode");
+ setSize(60, 80);
+ addPin(new Pin(this, "I", 5, PinUsage.INPUT, 0, 25), Position.RIGHT);
+ addPin(new Pin(this, "_SE", 1, PinUsage.INPUT, 0, 55), Position.RIGHT);
+ // SIO0 MUX:
+ // 000: 0
+ // 001: 1
+ // 01x: SIOn
+ // 10x: QIOn
+ // 11x: MC
+ addPin(new Pin(this, "SIO0_MUX", 3, PinUsage.OUTPUT, 60, 5), Position.LEFT);
+ // SIOn MUX:
+ // 000: 0
+ // 001: 1
+ // 010: SIO0
+ // 011: QIO0
+ // 100: MC
+ // 101: MN
+ // 110: IC
+ // 111: IN xor IVOR
+ addPin(new Pin(this, "SIOn_MUX", 3, PinUsage.OUTPUT, 60, 15), Position.LEFT);
+ // QIO0 MUX:
+ // 000: 0
+ // 001: 1
+ // 01x: SIOn
+ // 10x: QIOn
+ // 11x: MC
+ addPin(new Pin(this, "QIO0_MUX", 3, PinUsage.OUTPUT, 60, 25), Position.LEFT);
+ // QIOn MUX:
+ // 000: 0
+ // 001: 1
+ // 01x: SIO0
+ // 10x: QIO0
+ // 11x: MN
+ addPin(new Pin(this, "QIOn_MUX", 3, PinUsage.OUTPUT, 60, 35), Position.LEFT);
+ addPin(new Pin(this, "OEn", 1, PinUsage.OUTPUT, 60, 45), Position.LEFT);
+ addPin(new Pin(this, "OE0", 1, PinUsage.OUTPUT, 60, 55), Position.LEFT);
+ // 00: SIO0
+ // 01: QIO0
+ // 1x: SIOn
+ addPin(new Pin(this, "MC_MUX", 2, PinUsage.OUTPUT, 60, 65), Position.LEFT);
+ addPin(new Pin(this, "MC_EN", 1, PinUsage.OUTPUT, 60, 75), Position.LEFT);
+ }
+
+ @Override
+ public Object recalculate(Object lastState, Map<String, ReadEnd> readEnds, Map<String, ReadWriteEnd> readWriteEnds)
+ {
+ Bit _SE = readEnds.get("_SE").getValue();
+ BitVector I = readEnds.get("I").getValues();
+ readWriteEnds.get("OEn").feedSignals(I.getMSBit(0).not().and(_SE.not()));
+ readWriteEnds.get("OE0").feedSignals(I.getMSBit(0).and(_SE.not()));
+ if (_SE == Z || _SE == X)
+ {
+ readWriteEnds.get("SIO0_MUX").feedSignals(X, X, X);
+ readWriteEnds.get("SIOn_MUX").feedSignals(X, X, X);
+ readWriteEnds.get("QIO0_MUX").feedSignals(X, X, X);
+ readWriteEnds.get("QIOn_MUX").feedSignals(X, X, X);
+ readWriteEnds.get("MC_MUX").feedSignals(X, X);
+ readWriteEnds.get("MC_EN").feedSignals(X);
+ return null;
+ } else if (_SE == U)
+ {
+
+ readWriteEnds.get("SIO0_MUX").feedSignals(U, U, U);
+ readWriteEnds.get("SIOn_MUX").feedSignals(U, U, U);
+ readWriteEnds.get("QIO0_MUX").feedSignals(U, U, U);
+ readWriteEnds.get("QIOn_MUX").feedSignals(U, U, U);
+ readWriteEnds.get("MC_MUX").feedSignals(U, U);
+ readWriteEnds.get("MC_EN").feedSignals(U);
+ return null;
+ } else if (_SE == ONE)
+ {
+ readWriteEnds.get("SIO0_MUX").feedSignals(X, X, X);
+ readWriteEnds.get("SIOn_MUX").feedSignals(X, X, X);
+ readWriteEnds.get("QIO0_MUX").feedSignals(X, X, X);
+ readWriteEnds.get("QIOn_MUX").feedSignals(X, X, X);
+ readWriteEnds.get("MC_MUX").feedSignals(X, X);
+ readWriteEnds.get("MC_EN").feedSignals(ZERO);
+ return null;
+ }
+ if (!I.isBinary())
+ {
+ Bit val = null;
+ for (Bit b : I.getBits())
+ if (!b.isBinary())
+ {
+ val = b;
+ break;
+ }
+ readWriteEnds.get("SIO0_MUX").feedSignals(val, val, val);
+ readWriteEnds.get("SIOn_MUX").feedSignals(val, val, val);
+ readWriteEnds.get("QIO0_MUX").feedSignals(val, val, val);
+ readWriteEnds.get("QIOn_MUX").feedSignals(val, val, val);
+ readWriteEnds.get("MC_MUX").feedSignals(val, val);
+ readWriteEnds.get("MC_EN").feedSignals(val);
+ return null;
+ }
+ int IAsInt = I.getUnsignedValue().intValue();
+ if (IAsInt < 16)
+ {
+ readWriteEnds.get("SIO0_MUX").feedSignals(X, X, X);
+ readWriteEnds.get("QIO0_MUX").feedSignals(X, X, X);
+ switch (IAsInt)
+ {
+ case 0:
+ case 2:
+ case 6:
+ case 7:
+ readWriteEnds.get("SIOn_MUX").feedSignals(ZERO, ZERO, ZERO);
+ break;
+ case 1:
+ case 3:
+ readWriteEnds.get("SIOn_MUX").feedSignals(ZERO, ZERO, ONE);
+ break;
+ case 4:
+ case 9:
+ case 12:
+ readWriteEnds.get("SIOn_MUX").feedSignals(ONE, ZERO, ZERO);
+ break;
+ case 5:
+ readWriteEnds.get("SIOn_MUX").feedSignals(ONE, ZERO, ONE);
+ break;
+ case 8:
+ case 10:
+ readWriteEnds.get("SIOn_MUX").feedSignals(ZERO, ONE, ZERO);
+ break;
+ case 11:
+ readWriteEnds.get("SIOn_MUX").feedSignals(ONE, ONE, ZERO);
+ break;
+ case 13:
+ case 15:
+ readWriteEnds.get("SIOn_MUX").feedSignals(ZERO, ONE, ONE);
+ break;
+ case 14:
+ readWriteEnds.get("SIOn_MUX").feedSignals(ONE, ONE, ONE);
+ break;
+ default:
+ throw new IllegalStateException("can't happen");
+ }
+ switch (IAsInt)
+ {
+ case 0:
+ readWriteEnds.get("QIOn_MUX").feedSignals(ZERO, ZERO, ZERO);
+ break;
+ case 1:
+ readWriteEnds.get("QIOn_MUX").feedSignals(ZERO, ZERO, ONE);
+ break;
+ case 2:
+ readWriteEnds.get("QIOn_MUX").feedSignals(ONE, ONE, X);
+ break;
+ case 3:
+ case 4:
+ case 5:
+ case 6:
+ case 7:
+ case 11:
+ case 12:
+ case 13:
+ case 14:
+ case 15:
+ readWriteEnds.get("QIOn_MUX").feedSignals(ZERO, ONE, X);
+ break;
+ case 8:
+ case 9:
+ case 10:
+ readWriteEnds.get("QIOn_MUX").feedSignals(ONE, ZERO, X);
+ break;
+ default:
+ throw new IllegalStateException("can't happen");
+ }
+ } else
+ {
+ readWriteEnds.get("SIOn_MUX").feedSignals(X, X, X);
+ readWriteEnds.get("QIOn_MUX").feedSignals(X, X, X);
+ switch (IAsInt)
+ {
+ case 16:
+ case 18:
+ readWriteEnds.get("SIO0_MUX").feedSignals(ZERO, ZERO, ZERO);
+ break;
+ case 17:
+ case 19:
+ readWriteEnds.get("SIO0_MUX").feedSignals(ZERO, ZERO, ONE);
+ break;
+ case 20:
+ case 21:
+ case 22:
+ case 23:
+ case 28:
+ case 29:
+ case 30:
+ case 31:
+ readWriteEnds.get("SIO0_MUX").feedSignals(ONE, ZERO, X);
+ break;
+ case 24:
+ case 26:
+ readWriteEnds.get("SIO0_MUX").feedSignals(ONE, ONE, X);
+ break;
+ case 25:
+ case 27:
+ readWriteEnds.get("SIO0_MUX").feedSignals(ZERO, ONE, X);
+ break;
+ default:
+ throw new IllegalStateException("can't happen");
+ }
+ switch (IAsInt)
+ {
+ case 16:
+ case 18:
+ case 20:
+ case 22:
+ case 27:
+ readWriteEnds.get("QIO0_MUX").feedSignals(ZERO, ZERO, ZERO);
+ break;
+ case 17:
+ case 19:
+ case 21:
+ case 23:
+ readWriteEnds.get("QIO0_MUX").feedSignals(ZERO, ZERO, ONE);
+ break;
+ case 24:
+ case 25:
+ case 26:
+ readWriteEnds.get("SIO0_MUX").feedSignals(ONE, ZERO, X);
+ break;
+ case 28:
+ case 30:
+ readWriteEnds.get("SIO0_MUX").feedSignals(ONE, ONE, X);
+ break;
+ case 29:
+ case 31:
+ readWriteEnds.get("QIO0_MUX").feedSignals(ZERO, ONE, X);
+ break;
+ default:
+ throw new IllegalStateException("can't happen");
+ }
+ }
+ // MC
+ switch (IAsInt)
+ {
+ case 0:
+ case 1:
+ case 3:
+ case 4:
+ case 5:
+ case 6:
+ case 10:
+ case 11:
+ case 14:
+ case 15:
+ case 18:
+ case 19:
+ case 22:
+ case 23:
+ case 26:
+ case 27:
+ case 30:
+ case 31:
+ readWriteEnds.get("MC_EN").feedSignals(ZERO);
+ readWriteEnds.get("MC_MUX").feedSignals(X, X);
+ break;
+ case 2:
+ case 8:
+ case 9:
+ readWriteEnds.get("MC_EN").feedSignals(ONE);
+ readWriteEnds.get("MC_MUX").feedSignals(ZERO, ZERO);
+ break;
+ case 7:
+ case 12:
+ case 13:
+ readWriteEnds.get("MC_EN").feedSignals(ONE);
+ readWriteEnds.get("MC_MUX").feedSignals(ZERO, ONE);
+ break;
+ case 16:
+ case 17:
+ case 20:
+ case 21:
+ case 24:
+ case 25:
+ case 28:
+ case 29:
+ readWriteEnds.get("MC_EN").feedSignals(ONE);
+ readWriteEnds.get("MC_MUX").feedSignals(ONE, X);
+ break;
+ default:
+ throw new IllegalStateException("can't happen");
+ }
+ return null;
+ }
+
+ static
+ {
+ IndirectModelComponentCreator.setComponentSupplier(ModelAm2904ShiftInstrDecode.class.getCanonicalName(),
+ (m, p, n) -> new ModelAm2904ShiftInstrDecode(m, n));
+ }
+}
\ No newline at end of file
projects / Mograsim.git / blobdiff