CPU corrections

app/windows/CPUWindow.js

@@ -520,7 +520,7 @@
             line    : line,
             lines   : lines,
             target  : address,
-            seekToPC: seekToPC,
+            seekToPC: !!seekToPC,
             size    : (end - start + 1) * 4
         });
     }

app/windows/Disassembler.js

@@ -366,9 +366,9 @@
         let bits      = this.bits(inst);
         let reg2      = this.PROREGNAMES[bits >> 21 & 31];
         let reg1      = this.PROREGNAMES[bits >> 16 & 31];
-        let subop     = this.signExtend(bits & 0xFFFF, 16);
+        let subop     = bits >> 10 & 63;
         inst.mnemonic = this.FLOATENDO[subop];
-        if (inst.mnemonic = null)
+        if (inst.mnemonic == null)
             return;
         switch (subop) {
             case 0b001000: // XB

app/windows/MemoryWindow.js

@@ -149,6 +149,7 @@ globalThis.MemoryWindow = class MemoryWindow extends Toolkit.Window {
             command: "Write",
             sim    : this.debug.sim,
             dbgwnd : "Memory",
+            debug  : true,
             address: this.selected,
             type   : 0,
             value  : value

app/windows/Register.js

@@ -483,7 +483,7 @@
     setRegister(value) {
         this.debug.core.postMessage({
             command: "SetRegister",
-            debug  : "CPU",
+            dbgwnd : "CPU",
             id     : this.id,
             sim    : this.debug.sim,
             type   : this.system ? this.id == -1 ? "pc" : "system" : "program",