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correct code address is returned to assembler if a von Neumann cpu is simulated.

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hneemann 2017-03-20 17:39:10 +01:00
parent b46f71f01b
commit a90052b2d3
1 changed files with 5 additions and 3 deletions
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8
src/main/java/de/neemann/digital/core/memory/ROM.java
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@ -81,9 +81,6 @@ public class ROM extends Node implements Element {
public void readInputs() throws NodeException { public void readInputs() throws NodeException {
addr = (int) addrIn.getValue(); addr = (int) addrIn.getValue();
sel = selIn.getBool(); sel = selIn.getBool();
if (sel) {
romAddr = addr;
}
} }
@Override @Override
@ -107,6 +104,11 @@ public class ROM extends Node implements Element {
throw new NodeException(e.getMessage(), this, null); throw new NodeException(e.getMessage(), this, null);
} }
} }
if (isProgramMemory)
model.addObserver(event -> {
if (event == ModelEvent.STEP && sel)
romAddr = addr;
});
} }
/** /**