Tweaks from concurrent project

app/windows/CPUWindow.js

@@ -218,13 +218,17 @@
 
     // Update the display with current emulation data
     refresh(clientHeight, lineHeight, registers) {
-        if (!registers) {
-            this.debug.core.postMessage({
-                command: "GetRegisters",
-                debug  : "CPU",
-                sim    : this.debug.sim
-            });
+        if (!this.isVisible())
+            return;
+        if (registers) {
+            this.getRegisters({ registers });
+            return;
         }
+        this.debug.core.postMessage({
+            command: "GetRegisters",
+            debug  : "CPU",
+            sim    : this.debug.sim
+        });
     }
 
 

app/windows/MemoryWindow.js

@@ -106,7 +106,7 @@ globalThis.MemoryWindow = class MemoryWindow extends Toolkit.Window {
         for (
             let x = 0, address = this.address, offset = 0;
             x < this.rows.length && offset < bytes.length;
-            x++, address = (address + 16 & 0xFFFFFFFF) >>> 0, offset += 16
+            x++, address = (address + 16 & 0xFFFFFFF0) >>> 0, offset += 16
         ) this.rows[x].update(address, bytes, offset);
     }
 
@@ -155,21 +155,21 @@ globalThis.MemoryWindow = class MemoryWindow extends Toolkit.Window {
         // Processing by key
         else switch (e.key) {
             case "ArrowDown":
-                this.address = (this.address + 16 & 0xFFFFFFFF) >>> 0;
+                this.address = (this.address + 16 & 0xFFFFFFF0) >>> 0;
                 this.refresh();
                 break;
             case "ArrowUp":
-                this.address = (this.address - 16 & 0xFFFFFFFF) >>> 0;
+                this.address = (this.address - 16 & 0xFFFFFFF0) >>> 0;
                 this.refresh();
                 break;
             case "PageUp":
                 this.address = (this.address - 16 * this.lines(true) &
-                    0xFFFFFFFF) >>> 0;
+                    0xFFFFFFF0) >>> 0;
                 this.refresh();
                 break;
             case "PageDown":
                 this.address = (this.address + 16 * this.lines(true) &
-                    0xFFFFFFFF) >>> 0;
+                    0xFFFFFFF0) >>> 0;
                 this.refresh();
                 break;
             default: return super.onkeydown(e);
@@ -193,13 +193,13 @@ globalThis.MemoryWindow = class MemoryWindow extends Toolkit.Window {
         e.stopPropagation();
 
         // Specify the new address
-        this.address = (this.address + sign * mag * 16 & 0xFFFFFFFF) >>> 0;
+        this.address = (this.address + sign * mag * 16 & 0xFFFFFFF0) >>> 0;
         this.refresh(null, lineHeight);
     }
     
     // Move to a new address positioned at a particular row of output
     seek(address, index) {
-        this.address = (address - (index || 0) * 16 & 0xFFFFFFFF) >>> 0;
+        this.address = (address - (index || 0) * 16 & 0xFFFFFFF0) >>> 0;
     }
 
 };

app/windows/Register.js

@@ -312,8 +312,7 @@
             localized: true,
             text     : "{cpu.pcFrom}"
         }));
-        lbl.element.setAttribute("name", "indent");
-        this.txtFrom = this.expansion.add(this.newTextBox());
+        this.txtFrom = this.expansion.add(this.newTextBox({ enabled: false }));
         this.txtFrom.element.setAttribute("name", "value");
 
         // To text box
@@ -321,8 +320,7 @@
             localized: true,
             text     : "{cpu.pcTo}"
         }));
-        lbl.element.setAttribute("name", "indent");
-        this.txtTo = this.expansion.add(this.newTextBox());
+        this.txtTo = this.expansion.add(this.newTextBox({ enabled: false }));
         this.txtTo.element.setAttribute("name", "value");
     }