More robust handling of PDP-10 memory errors (so that when a file is assembled and loaded into non-existent memory, an error is generated); bumped the PDP-10 test machine to 32K words

modules/pdp10/lib/cpustate.js

@@ -832,6 +832,20 @@ class CPUStatePDP10 extends CPUPDP10 {
         return data;
     }
 
+    /**
+     * haltCPU()
+     *
+     * This is a temporary helper function for the Bus component, to force the CPU to stop executing the
+     * current instruction.
+     *
+     * @this {CPUStatePDP10}
+     */
+    haltCPU()
+    {
+        this.stopCPU();
+        throw -1;
+    }
+
     /**
      * stepCPU(nMinCycles)
      *