Method rename and two new methods added to Bank class.

src/common/bank.js

 
-var Memory = require('src/memory');
+var Memory = require('./memory');
 
 class Bank extends Memory{
   constructor(size, ro){
     this.__listeners[addr].push(fn);
   }
 
-  // This method is intended for the emulator to fill a Read-Only memory module with data prior to
-  // the start of execution. This method should never be used in a running system.
-  sysStore(address, data){
+  load(address, data){
     if (this.__map){
       let dc = data;
       if (address < 0 || address >= this.__map.length)
         throw new RangeError("Memory address out of range.");
       if (this.__map.length - address < dc.length)
         dc = dc.slice(0, this.__map.length - address);
-      this.__map.set(address, dc);
+      this.__map.set(dc, address);
       return dc.length;
     }
   }
+
+  clearPage(page){
+    if (this.__map){
+      let addr = (page << 8) & 0xFF00;
+      if (addr < 0 || addr >= this.__map.length)
+        throw new RangeError("Memory address out of range.");
+      this.__map.fill(0, addr, addr + 256);
+    }
+  }
+
+  clear(){
+    if (this.__map)
+      this.__map.fill(0);
+  }
 }