diff --git a/docs/pcx86/examples/pcx86-dbg.js b/docs/pcx86/examples/pcx86-dbg.js
index 5aa39dcbc..07557823e 100644
--- a/docs/pcx86/examples/pcx86-dbg.js
+++ b/docs/pcx86/examples/pcx86-dbg.js
@@ -718,7 +718,7 @@ case "^":d=f^e;break;case "|":d=f|e;break;case "&&":d=f&&e?1:0;break;case "||":d
 function Px(a,b,c){var d;if(b){b=Qx(a,b);for(var e=0,f=!1,g=b,h=[],k=[],m=b.split(/(\|\||&&|\||^|&|!=|==|>=|>>>|>>|>|<=|<<|<|-|\+|%|\/|\*)/);e<m.length;){var p=m[e++],w=p.length,p=ra(p);if(!p){f=!0;break}p=Rx(a,p,null,!1===c);if(void 0===p){f=!0;c=!1;break}h.push(p);if(e==m.length)break;var p=m[e++],u=p.length;k.length&&Sx[p]<Sx[k[k.length-1]]&&Ox(h,k,1);k.push(p);b=b.substr(w+u)}Ox(h,k)&&1==h.length||(f=!0);f?c&&a.P("error parsing '"+g+"' at character "+(g.length-b.length)):(d=h.pop(),c&&Tx(a,null,
 d))}return d}function Qx(a,b){for(var c,d=/\{(.*?)\}/;(c=b.match(d))&&!(0<=c[1].indexOf("{"));){var e=Px(a,c[1]);b=b.replace("{"+c[1]+"}",null!=e?Ux(a,e):"undefined")}for(;(c=b.match(/\[(.*?)]/))&&!(0<=c[1].indexOf("["));)b=a.Pk(b,c[1]);for(;c=b.match(/\$([a-z]+)/i);){d=null;switch(c[1].toLowerCase()){case "ops":d=a.W-a.ga}if(null==d)break;b=b.replace(c[0],d.toString())}return b}
 function Rx(a,b,c,d){var e;null!=b?(e=a.gh(b),0<=e?e=a.hh(e):(e=a.da[b],null==e&&(e=ga(b,a.ya))),null!=e||d||a.P("invalid "+(c?c:"value")+": "+b)):d||a.P("missing "+(c||"value"));return e}function Tx(a,b,c){var d,e=!1;void 0!==c&&(e=!0,d=q(c,0,!0)+" "+c+". "+ja(c,0,!0)+" "+ia(c,4,!0),32<=c&&127>c&&(d+=" '"+String.fromCharCode(c)+"'"));a.P((null!=b?b+": ":"")+d);return e}function Vx(a,b){if(b)return Tx(a,b,a.da[b]);var c=0;for(b in a.da)Tx(a,b,a.da[b]),c++;return 0<c}
-function Ux(a,b){var c;c=void 0===c?0:c;switch(a.ya){case 8:a=ja(b,3*c);break;case 10:a=b.toString();break;default:a=q(b,2*c)}return a}var Sx={"||":0,"&&":1,"|":2,"^":3,"&":4,"!=":5,"==":5,">=":6,">":6,"<=":6,"<":6,">>>":7,">>":7,"<<":7,"-":8,"+":8,"%":9,"/":9,"*":9};
+function Ux(a,b){var c;c=void 0===c?0:c;switch(a.ya){case 8:a=ja(b,0<c?(c+2)/3|0:0);break;case 10:a=b;b=0<c?Math.ceil(.3*c):0;var d="";b?10<b&&(b=10):b=a&-65536?10:5;if(null==a||isNaN(a))for(;0<b--;)d="?"+d;else for(;0<b--;)d=String.fromCharCode(a%10+48)+d,a/=10;a=d;break;default:a=q(b,0<c?c+3>>2:0)}0>c?c=a.replace(/^0+([0-9A-F]+)$/i,"$1"):c=a;return c}var Sx={"||":0,"&&":1,"|":2,"^":3,"&":4,"!=":5,"==":5,">=":6,">":6,"<=":6,"<":6,">>>":7,">>":7,"<<":7,"-":8,"+":8,"%":9,"/":9,"*":9};
 function Wx(a){Nx.call(this,a);this.oa=4;this.ha=5;this.wa=1048575;this.K=Xx(this);this.Ga=Xx(this);this.Z=Xx(this);this.D=[];this.B=this.Y=this.M=[];Yx(this);this.ta=0;Zx(this);this.za={};$x(this,a.messages);this.Ca=a.commands;var b=this;window?void 0===window.pcx86&&(window.pcx86=function(a){return ay(b,a)}):void 0===global.pcx86&&(global.pcx86=function(a){return ay(b,a)})}ba(Wx,Nx);l=Wx.prototype;
 l.uc=function(a,b,c,d){this.ka=b;this.H=c;this.pa=a;this.Za=Ob(a,"FDC");this.Ha=Ob(a,"HDC");this.Tc=Ob(a,"FPU");this.G=Ob(a,"Mouse");(a=qd(a,"messages"))&&$x(this,a);this.ha=b.I>>2;this.wa=b.N;this.Ta=new Kd(this.H,7,"DBG");this.ma=by;80186<=this.H.ca&&(this.ma=by.slice(),this.ma[15]=cy,80286<=this.H.ca&&(this.ma[15]=dy,80386<=this.H.ca&&(this.oa=8)));rl(this,64,function(a){ey(d,d.H.sc,a[0])});rl(this,4,function(a){if(a=a[0]){var b=Rx(d,a);if(void 0===b)d.P("invalid selector: "+a);else if(a=fy(d,
 b,gy),d.P("dumpSel("+ka(a?a.U:b)+"): %"+q(a?a.Lb:null,d.ha)),a){var c,b=!1;if(a.type&4096)a.type&2048?(c="code"+(a.type&512?",readable":",execonly"),a.type&1024&&(c+=",conforming")):(c="data"+(a.type&512?",writable":",readonly"),a.type&1024&&(c+=",expdown")),a.type&256&&(c+=",accessed");else{var e=hy[a.type];e&&(c=e[0],b=e[1])}!c||a.jb&32768||(c+=",not present");d.P((b?"seg="+ka(a.ua&65535)+" off="+ka(a.Ka):"base="+q(a.ua,d.ha)+" limit="+iy(a.Ka))+" type="+r(a.type>>8)+" ("+c+") ext="+ka(a.ext&-65296)+
diff --git a/modules/pdp10/lib/debugger.js b/modules/pdp10/lib/debugger.js
index 173457c11..aad5c5e1a 100644
--- a/modules/pdp10/lib/debugger.js
+++ b/modules/pdp10/lib/debugger.js
@@ -549,7 +549,7 @@ class DebuggerPDP10 extends Debugger {
      *
      * @this {DebuggerPDP10}
      * @param {number|null|undefined} [off]
-     * @return {string} the hex representation of off
+     * @return {string} default base representation of off
      */
     toStrOffset(off)
     {
@@ -561,13 +561,29 @@ class DebuggerPDP10 extends Debugger {
      *
      * @this {DebuggerPDP10}
      * @param {DbgAddrPDP10} dbgAddr
-     * @return {string} the hex representation of the address
+     * @return {string} default base representation of the address
      */
     toStrAddr(dbgAddr)
     {
         return this.toStrOffset(dbgAddr.addr);
     }
 
+    /**
+     * toStrWord(w)
+     *
+     * @this {DebuggerPDP10}
+     * @param {number} w (up to, but not including, DATA_LIMIT)
+     * @return {string} octal representation of the 36-bit word, as two 18-bit values
+     */
+    toStrWord(w)
+    {
+        /*
+         * ADDR_LIMIT is not derived from DATA_LIMIT; we're just taking advantage of the fact
+         * that ADDR_LIMIT happens to be exactly half of DATA_LIMIT, and they are both powers of two.
+         */
+        return Str.toOct(w / PDP10.ADDR_LIMIT, 6) + ' ' + Str.toOct(w % PDP10.ADDR_LIMIT, 6);
+    }
+
     /**
      * dumpBlocks(aBlocks, sAddr)
      *
@@ -1759,7 +1775,7 @@ class DebuggerPDP10 extends Debugger {
     {
         var opNames = DebuggerPDP10.OPNAMES;
         var dbgAddrOp = this.newAddr(dbgAddr.addr);
-        var opCode = this.getWord(dbgAddr, 2);
+        var opCode = this.getWord(dbgAddr, 1);
 
         var opDesc;
         for (var mask in this.opTable) {
@@ -1783,7 +1799,7 @@ class DebuggerPDP10 extends Debugger {
         var cOperands = opDesc.length - 1;
 
         if (!opNum && !cOperands) {
-            sOperands = this.toStrBase(opCode);
+            sOperands = this.toStrWord(opCode);
         }
 
         for (var iOperand = 1; iOperand <= cOperands; iOperand++) {
@@ -1815,12 +1831,13 @@ class DebuggerPDP10 extends Debugger {
         var sLine = this.toStrAddr(dbgAddrOp) + ":";
         if (dbgAddrOp.addr !== PDP10.ADDR_INVALID && dbgAddr.addr !== PDP10.ADDR_INVALID) {
             do {
-                sOpCodes += ' ' + this.toStrBase(this.getWord(dbgAddrOp, 2));
+                var w = this.getWord(dbgAddrOp, 1);
+                sOpCodes += ' ' + this.toStrWord(w);
                 if (dbgAddrOp.addr == null) break;
             } while (dbgAddrOp.addr != dbgAddr.addr);
         }
 
-        sLine += Str.pad(sOpCodes, 24);
+        sLine += Str.pad(sOpCodes, 16);
         sLine += Str.pad(sOpName, 5);
         if (sOperands) sLine += ' ' + sOperands;
 
@@ -2450,9 +2467,9 @@ class DebuggerPDP10 extends Debugger {
         var nBase = this.nBase;
         if (dbgAddr.nBase) this.nBase = dbgAddr.nBase;
 
-        var nBitsPerWord = 36;
+        var size = (sCmd == "db"? 1 : 2);
         var nWords = len || 32;
-        var nWordsPerLine = 4; // fJSON? 16 : this.nBase;
+        var nWordsPerLine = (size == 1? 2 : 4);
         var nLines = (((nWords + nWordsPerLine - 1) / nWordsPerLine)|0) || 1;
 
         var sDump = "";
@@ -2464,23 +2481,22 @@ class DebuggerPDP10 extends Debugger {
                 var w = this.getWord(dbgAddr, 1);
                 if (fJSON) {
                     if (sData) sData += ",";
-                    sData += "0x"+ Str.toHex(w, nBitsPerWord >> 2);
+                    sData += w;
                 } else {
-                    sData += this.toStrBase(w, nBitsPerWord >> 3);
-                    sData += ' ';
+                    sData += this.toStrWord(w);
+                    sData += '  ';
                 }
-                var nBytesPerWord = nBitsPerWord >> 3;
-                while (nBytesPerWord--) {
-                    var c = w % 256;
-                    sChars += (c >= 32 && c < 128? String.fromCharCode(c) : '.');
-                    w /= 256;
+                for (var i = 0; size == 1 && i < 6; i++) {
+                    var c = ((w % 64)|0) + 33;
+                    sChars += String.fromCharCode(c);
+                    w /= 64;
                 }
             }
             if (sDump) sDump += "\n";
             if (fJSON) {
                 sDump += sData + ",";
             } else {
-                sDump += sAddr + ":  " + sData + ((n == 0)? (' ' + sChars) : "");
+                sDump += sAddr + ":  " + sData + ((n < 0)? (' ' + sChars) : "");
             }
         }
 
@@ -2498,13 +2514,10 @@ class DebuggerPDP10 extends Debugger {
      */
     doEdit(asArgs)
     {
-        var size, mask;
         var fnGet, fnSet;
         var sCmd = asArgs[0];
         var sAddr = asArgs[1];
         if (sCmd == "e" || sCmd == "ew") {
-            size = 2;
-            mask = 0xffff;
             fnGet = this.getWord;
             fnSet = this.setWord;
         } else {
@@ -2523,12 +2536,9 @@ class DebuggerPDP10 extends Debugger {
                 this.println("unrecognized value: " + asArgs[i]);
                 break;
             }
-            if (vNew & ~mask) {
-                this.println("warning: " + Str.toHex(vNew) + " exceeds " + size + "-byte value");
-            }
-            this.println("changing " + this.toStrAddr(dbgAddr) + (this.messageEnabled(MessagesPDP10.BUS)? "" : (" from " + this.toStrBase(fnGet.call(this, dbgAddr), size))) + " to " + this.toStrBase(vNew, size));
+            this.println("changing " + this.toStrAddr(dbgAddr) + " from " + this.toStrWord(fnGet.call(this, dbgAddr)) + " to " + this.toStrWord(vNew));
             //noinspection JSUnresolvedFunction
-            fnSet.call(this, dbgAddr, vNew, size);
+            fnSet.call(this, dbgAddr, vNew, 1);
         }
     }
 
diff --git a/modules/pdp10/lib/defines.js b/modules/pdp10/lib/defines.js
index a44b303a4..cf0bdcec1 100644
--- a/modules/pdp10/lib/defines.js
+++ b/modules/pdp10/lib/defines.js
@@ -97,7 +97,7 @@ var PDP10 = {
      */
     ADDR_INVALID:   -1,
     ADDR_LIMIT:     Math.pow(2, 18),
-    DATA_INVALID:   0,
+    DATA_INVALID:   -1,
     DATA_LIMIT:     Math.pow(2, 36),
     /*
      * Assorted common opcodes
diff --git a/modules/pdp10/lib/memory.js b/modules/pdp10/lib/memory.js
index 6ae06cba9..3c1fcbcd5 100644
--- a/modules/pdp10/lib/memory.js
+++ b/modules/pdp10/lib/memory.js
@@ -406,7 +406,7 @@ class MemoryPDP10 {
             this.dbg.printMessage("attempt to read invalid address " + this.dbg.toStrBase(addr), true);
         }
         this.bus.fault(addr);
-        return 0;
+        return PDP10.DATA_INVALID;
     }
 
     /**
diff --git a/modules/pdp11/lib/cpustate.js b/modules/pdp11/lib/cpustate.js
index a451ed3bb..c85c84953 100644
--- a/modules/pdp11/lib/cpustate.js
+++ b/modules/pdp11/lib/cpustate.js
@@ -1596,7 +1596,7 @@ class CPUStatePDP11 extends CPUPDP11 {
         if (DEBUG && this.dbg) {
             if (this.messageEnabled(MessagesPDP11.TRAP)) {
                 var sReason = reason < 0? PDP11.REASONS[-reason] : this.dbg.toStrBase(reason);
-                this.printMessage("trap to vector " + this.dbg.toStrBase(vector, 1) + " (" + sReason + ")", MessagesPDP11.TRAP, true);
+                this.printMessage("trap to vector " + this.dbg.toStrBase(vector, 8) + " (" + sReason + ")", MessagesPDP11.TRAP, true);
             }
         }
 
diff --git a/modules/pdp11/lib/debugger.js b/modules/pdp11/lib/debugger.js
index 468738cb9..75121475d 100644
--- a/modules/pdp11/lib/debugger.js
+++ b/modules/pdp11/lib/debugger.js
@@ -1212,7 +1212,7 @@ class DebuggerPDP11 extends Debugger {
         if (trapStatus) {
             var reason = trapStatus >> 8;
             var sReason = reason < 0? PDP11.REASONS[-reason] : this.toStrBase(reason);
-            this.println("trapped to " + this.toStrBase(trapStatus & 0xff, 1) + " (" + sReason + ")");
+            this.println("trapped to " + this.toStrBase(trapStatus & 0xff, 8) + " (" + sReason + ")");
         }
 
         this.dbgAddrNextCode = this.newAddr(this.cpu.getPC());
@@ -2073,15 +2073,15 @@ class DebuggerPDP11 extends Debugger {
         }
         else if (opTypeOther == DebuggerPDP11.OP_DSTNUM3) {
             disp = (opCode & 0x07);
-            sOperand = this.toStrBase(disp, 1);
+            sOperand = this.toStrBase(disp, 3);
         }
         else if (opTypeOther == DebuggerPDP11.OP_DSTNUM6) {
             disp = (opCode & 0x3f);
-            sOperand = this.toStrBase(disp, 1);
+            sOperand = this.toStrBase(disp, 6);
         }
         else if (opTypeOther == DebuggerPDP11.OP_DSTNUM8) {
             disp = (opCode & 0xff);
-            sOperand = this.toStrBase(disp, 1);
+            sOperand = this.toStrBase(disp, 8);
         }
         else {
             /*
@@ -2123,7 +2123,7 @@ class DebuggerPDP11 extends Debugger {
                          * When using R7 (aka PC), POST-INCREMENT is known as IMMEDIATE
                          */
                         wIndex = this.getWord(dbgAddr, 2);
-                        sOperand = '#' + this.toStrBase(wIndex, 0, true);
+                        sOperand = '#' + this.toStrBase(wIndex, -1);
                     }
                     break;
 
@@ -2135,7 +2135,7 @@ class DebuggerPDP11 extends Debugger {
                          * When using R7 (aka PC), POST-INCREMENT DEFERRED is known as ABSOLUTE
                          */
                         wIndex = this.getWord(dbgAddr, 2);
-                        sOperand = "@#" + this.toStrBase(wIndex, 0, true);
+                        sOperand = "@#" + this.toStrBase(wIndex, -1);
                         sTarget = this.getTarget(wIndex);
                     }
                     break;
@@ -2150,7 +2150,7 @@ class DebuggerPDP11 extends Debugger {
 
                 case PDP11.OPMODE.INDEX:                // 0x6: INDEX
                     wIndex = this.getWord(dbgAddr, 2);
-                    sOperand = this.toStrBase(wIndex, 0, true) + '(' + this.getRegName(reg) + ')';
+                    sOperand = this.toStrBase(wIndex, -1) + '(' + this.getRegName(reg) + ')';
                     if (reg == 7) {
                         /*
                          * When using R7 (aka PC), INDEX is known as RELATIVE.  However, instead of displaying
@@ -2936,9 +2936,9 @@ class DebuggerPDP11 extends Debugger {
                 if (shift == size) {
                     if (fJSON) {
                         if (sData) sData += ",";
-                        sData += "0x"+ Str.toHex(data, size * 2);
+                        sData += "0x"+ Str.toHex(data, size << 1);
                     } else {
-                        sData += this.toStrBase(data, size);
+                        sData += this.toStrBase(data, size << 3);
                         sData += (size == 1? (i == 9? '-' : ' ') : "  ");
                     }
                     data = shift = 0;
@@ -3007,7 +3007,7 @@ class DebuggerPDP11 extends Debugger {
             if (vNew & ~mask) {
                 this.println("warning: " + Str.toHex(vNew) + " exceeds " + size + "-byte value");
             }
-            this.println("changing " + this.toStrAddr(dbgAddr) + (this.messageEnabled(MessagesPDP11.BUS)? "" : (" from " + this.toStrBase(fnGet.call(this, dbgAddr), size))) + " to " + this.toStrBase(vNew, size));
+            this.println("changing " + this.toStrAddr(dbgAddr) + (this.messageEnabled(MessagesPDP11.BUS)? "" : (" from " + this.toStrBase(fnGet.call(this, dbgAddr), size << 3))) + " to " + this.toStrBase(vNew, size << 3));
             //noinspection JSUnresolvedFunction
             fnSet.call(this, dbgAddr, vNew, size);
         }
diff --git a/modules/pdp11/lib/device.js b/modules/pdp11/lib/device.js
index dfb4b796c..bad3412e6 100644
--- a/modules/pdp11/lib/device.js
+++ b/modules/pdp11/lib/device.js
@@ -146,16 +146,16 @@ class DevicePDP11 extends Component {
         if (DEBUGGER) {
             var dbg = this.dbg;
             if (sFilter && sName.indexOf(sFilter.toUpperCase()) < 0) return;
+            var nBits = 0;
             var nRegs = 8;
             var sDump = "";
             var fIndex = false;
-            var nBytes = 0;
             var nWidth = 8;
             if (offset < 0) {
+                nBits = 22;
                 nRegs = aRegs.length;
                 offset = 0;
                 fIndex = true;
-                nBytes = 3;
                 nWidth = 4;
             }
             for (var i = 0; i < nRegs; i++) {
@@ -163,7 +163,7 @@ class DevicePDP11 extends Component {
                     if (sDump) sDump += '\n';
                     sDump += sName + (fIndex? ('[' + Str.toDec(i, 2) + ']') : '') + ':';
                 }
-                sDump += ' ' + dbg.toStrBase(aRegs[offset + i], nBytes);
+                sDump += ' ' + dbg.toStrBase(aRegs[offset + i], nBits);
             }
             dbg.println(sDump + (fBreak? '\n' : ''));
         }
diff --git a/modules/shared/lib/debugger.js b/modules/shared/lib/debugger.js
index 040f86528..5d36aab83 100644
--- a/modules/shared/lib/debugger.js
+++ b/modules/shared/lib/debugger.js
@@ -647,31 +647,42 @@ class Debugger extends Component {
     }
 
     /**
-     * toStrBase(n, nBytes, fStripLeadingZeros)
+     * toStrBase(n, nBits)
      *
-     * Use this instead of Str.toHex() or Str.toOct() to convert bytes/words to the Debugger's default base.
+     * Use this instead of Str's toOct()/toDec()/toHex() to convert numbers to the Debugger's default base.
+     *
+     * TODO: The 32-bit limitation on n is imposed by the Str functions we call, not us.  Consider modifying
+     * those functions to support a higher number of bits (eg, 36), using arithmetic operators instead of bit-wise
+     * operators, and increasing the maximum number of supported bits to at least 52, while still using JavaScript
+     * floating-point numbers as the underlying data type.
+     *
+     * For now, the only component that really cares about supporting more than 32 bits (eg, 36 bits) is the PDP-10
+     * Debugger, which currently uses its own functions (eg, toStrWord()) to divide quantities into smaller (eg, 18-bit)
+     * values.
      *
      * @this {Debugger}
-     * @param {number|null|undefined} n
-     * @param {number} [nBytes] is the number of bytes to display, which we translate into a number of characters
-     * @param {boolean} [fStripLeadingZeros]
+     * @param {number|null|undefined} n (interpreted as a 32-bit value)
+     * @param {number} [nBits] (-1 to strip leading zeros, 0 to allow a variable number of digits)
      * @return {string}
      */
-    toStrBase(n, nBytes = 0, fStripLeadingZeros = false) {
+    toStrBase(n, nBits = 0) {
         var s;
         switch(this.nBase) {
         case 8:
-            s = Str.toOct(n, nBytes * 3 /* - (nBytes > 2? 1 : 0) */);
+            s = Str.toOct(n, nBits > 0? ((nBits + 2)/3)|0 : 0);
             break;
         case 10:
-            s = n.toString();
+            /*
+             * The multiplier is actually Math.log(2)/Math.log(10), but an approximation is more than adequate.
+             */
+            s = Str.toDec(n, nBits > 0? Math.ceil(nBits * 0.3) : 0);
             break;
         case 16:
         default:
-            s = Str.toHex(n, nBytes * 2);
+            s = Str.toHex(n, nBits > 0? ((nBits + 3) >> 2) : 0);
             break;
         }
-        return (fStripLeadingZeros? Str.stripLeadingZeros(s) : s);
+        return (nBits < 0? Str.stripLeadingZeros(s) : s);
     }
 }
 
diff --git a/modules/shared/lib/strlib.js b/modules/shared/lib/strlib.js
index a9dbf0bf8..feabdb7ec 100644
--- a/modules/shared/lib/strlib.js
+++ b/modules/shared/lib/strlib.js
@@ -143,7 +143,7 @@ class Str {
      *
      * Converts an integer to binary, with the specified number of digits (up to the default of 32).
      *
-     * @param {number|null|undefined} n is a 32-bit value
+     * @param {number|null|undefined} n (interpreted as a 32-bit value)
      * @param {number} [cch] is the desired number of binary digits (32 is both the default and the maximum)
      * @param {number} [grouping]
      * @return {string} the binary representation of n
@@ -171,7 +171,7 @@ class Str {
                 s = "," + s;
                 group = grouping;
             }
-            s = (fInvalid ? '?' : ((n & 0x1) ? '1' : '0')) + s;
+            s = (fInvalid? '?' : ((n & 0x1)? '1' : '0')) + s;
             n >>= 1;
             group--;
         }
@@ -183,7 +183,7 @@ class Str {
      *
      * Converts an integer to binary, with the specified number of bytes (up to the default of 4).
      *
-     * @param {number|null|undefined} n is a 32-bit value
+     * @param {number|null|undefined} n (interpreted as a 32-bit value)
      * @param {number} [cb] is the desired number of binary bytes (4 is both the default and the maximum)
      * @param {boolean} [fPrefix]
      * @return {string} the binary representation of n
@@ -197,7 +197,7 @@ class Str {
             s = Str.toBin(n & 0xff, 8) + s;
             n >>= 8;
         }
-        return (fPrefix ? "0b" : "") + s;
+        return (fPrefix? "0b" : "") + s;
     }
 
     /**
@@ -209,7 +209,7 @@ class Str {
      * doesn't properly convert negative values.  Moreover, if n is undefined, n.toString() will throw
      * an exception, whereas this function will return '?' characters.
      *
-     * @param {number|null|undefined} n is a 32-bit value
+     * @param {number|null|undefined} n (interpreted as a 32-bit value)
      * @param {number} [cch] is the desired number of octal digits (0 or undefined for default of either 6 or 11)
      * @param {boolean} [fPrefix]
      * @return {string} the octal representation of n
@@ -221,7 +221,7 @@ class Str {
         if (cch) {
             if (cch > 11) cch = 11;
         } else {
-            cch = (n & ~0xffffff) ? 11 : ((n & ~0xffff) ? 8 : 6);
+            cch = (n & ~0xffffff)? 11 : ((n & ~0xffff)? 8 : 6);
         }
         /*
          * An initial "falsey" check for null takes care of both null and undefined;
@@ -240,7 +240,7 @@ class Str {
                 n >>= 3;
             }
         }
-        return (fPrefix ? "0o" : "") + s;
+        return (fPrefix? "0o" : "") + s;
     }
 
     /**
@@ -252,7 +252,7 @@ class Str {
      * doesn't properly convert negative values.  Moreover, if n is undefined, n.toString() will throw
      * an exception, whereas this function will return '?' characters.
      *
-     * @param {number|null|undefined} n is a 32-bit value
+     * @param {number|null|undefined} n (interpreted as a 32-bit value)
      * @param {number} [cch] is the desired number of decimal digits (0 or undefined for default of either 5 or 10)
      * @return {string} the octal representation of n
      */
@@ -263,7 +263,7 @@ class Str {
         if (cch) {
             if (cch > 10) cch = 10;
         } else {
-            cch = (n & ~0xffff) ? 10 : 5;
+            cch = (n & ~0xffff)? 10 : 5;
         }
         /*
          * An initial "falsey" check for null takes care of both null and undefined;
@@ -302,7 +302,7 @@ class Str {
      *      s = "00000000".substr(0, 8 - s.length) + s;
      *      s = s.substr(0, cch).toUpperCase();
      *
-     * @param {number|null|undefined} n is a 32-bit value
+     * @param {number|null|undefined} n (interpreted as a 32-bit value)
      * @param {number} [cch] is the desired number of hex digits (0 or undefined for default of either 4 or 8)
      * @param {boolean} [fPrefix]
      * @return {string} the hex representation of n
@@ -314,7 +314,7 @@ class Str {
         if (cch) {
             if (cch > 8) cch = 8;
         } else {
-            cch = (n & ~0xffff) ? 8 : 4;
+            cch = (n & ~0xffff)? 8 : 4;
         }
         /*
          * An initial "falsey" check for null takes care of both null and undefined;
@@ -329,12 +329,12 @@ class Str {
         } else {
             while (cch-- > 0) {
                 var d = n & 0xf;
-                d += (d >= 0 && d <= 9 ? 0x30 : 0x41 - 10);
+                d += (d >= 0 && d <= 9? 0x30 : 0x41 - 10);
                 s = String.fromCharCode(d) + s;
                 n >>= 4;
             }
         }
-        return (fPrefix ? "0x" : "") + s;
+        return (fPrefix? "0x" : "") + s;
     }
 
     /**
@@ -492,7 +492,7 @@ class Str {
              * and the hyphen is last, you can avoid escaping those as well.
              */
             k = k.replace(/([\\[\]*{}().+?])/g, "\\$1");
-            sMatch += (sMatch ? '|' : '') + k;
+            sMatch += (sMatch? '|' : '') + k;
         }
         return s.replace(new RegExp('(' + sMatch + ')', "g"), function(m)
         {
@@ -513,7 +513,7 @@ class Str {
     static pad(s, cch, fPadLeft)
     {
         var sPadding = "                                        ";
-        return fPadLeft ? (sPadding + s).slice(-cch) : (s + sPadding).slice(0, cch);
+        return fPadLeft? (sPadding + s).slice(-cch) : (s + sPadding).slice(0, cch);
     }
 
     /**
diff --git a/versions/pc8080/1.34.0/pc8080-dbg.js b/versions/pc8080/1.34.0/pc8080-dbg.js
index c1fd40e69..1f1887909 100644
--- a/versions/pc8080/1.34.0/pc8080-dbg.js
+++ b/versions/pc8080/1.34.0/pc8080-dbg.js
@@ -202,8 +202,8 @@ function Vf(a,b,c){var d;if(b){b=Wf(a,b);for(var e=0,f=!1,g=b,h=[],k=[],p=b.spli
 d))}return d}function Wf(a,b){for(var c,d=/\{(.*?)\}/;(c=b.match(d))&&!(0<=c[1].indexOf("{"));){var e=Vf(a,c[1]);b=b.replace("{"+c[1]+"}",null!=e?$f(a,e):"undefined")}for(;(c=b.match(/\[(.*?)]/))&&!(0<=c[1].indexOf("["));)b=b.replace("["+c[1]+"]","unimplemented");for(;c=b.match(/\$([a-z]+)/i);){d=null;switch(c[1].toLowerCase()){case "ops":d=a.N-a.Y}if(null==d)break;b=b.replace(c[0],d.toString())}return b}
 function Xf(a,b,c,d){var e;null!=b?(e=a.Kb(b),0<=e?e=a.Lb(e):(e=a.S[b],null==e&&(e=Ha(b,a.na))),null!=e||d||a.i("invalid "+(c?c:"value")+": "+b)):d||a.i("missing "+(c||"value"));return e}
 function Zf(a,b,c){var d,e=!1;if(void 0!==c){e=!0;d=c;var f=4,g="";if(!f||4<f)f=4;for(var h=0;h<f;h++){g&&(g=","+g);var k=d&255,p=void 0,u=8,v="";u?32<u&&(u=32):u=32;for(var B=null==k||isNaN(k),y=p=p||u;0<u--;)y||(v=","+v,y=p),v=(B?"?":k&1?"1":"0")+v,k>>=1,y--;g=v+g;d>>=8}d=t(c,0,!0)+" "+c+". "+Ia(c,0,!0)+" "+("0b"+g);32<=c&&127>c&&(d+=" '"+String.fromCharCode(c)+"'")}a.i((null!=b?b+": ":"")+d);return e}
-function ag(a,b){if(b)return Zf(a,b,a.S[b]);var c=0;for(b in a.S)Zf(a,b,a.S[b]),c++;return 0<c}function $f(a,b){var c;c=void 0===c?0:c;switch(a.na){case 8:a=Ia(b,3*c);break;case 10:a=b.toString();break;default:a=t(b,2*c)}return a}var Yf={"||":0,"&&":1,"|":2,"^":3,"&":4,"!=":5,"==":5,">=":6,">":6,"<=":6,"<":6,">>>":7,">>":7,"<<":7,"-":8,"+":8,"%":9,"/":9,"*":9};
-function bg(a){Tf.call(this,a);this.style=cg;this.F=dg();this.la=dg();this.O=dg();this.A=[];this.j=this.I=this.w=[];eg(this);this.W=0;fg(this);this.Z={};gg(this,a.messages);this.ea=a.commands;var b=this;window?void 0===window.pc8080&&(window.pc8080=function(a){return Fc(b,a)}):void 0===global.pc8080&&(global.pc8080=function(a){return Fc(b,a)})}aa(bg,Tf);l=bg.prototype;
+function ag(a,b){if(b)return Zf(a,b,a.S[b]);var c=0;for(b in a.S)Zf(a,b,a.S[b]),c++;return 0<c}function $f(a,b){var c;c=void 0===c?0:c;switch(a.na){case 8:a=Ia(b,0<c?(c+2)/3|0:0);break;case 10:a=b;b=0<c?Math.ceil(.3*c):0;var d="";b?10<b&&(b=10):b=a&-65536?10:5;if(null==a||isNaN(a))for(;0<b--;)d="?"+d;else for(;0<b--;)d=String.fromCharCode(a%10+48)+d,a/=10;a=d;break;default:a=t(b,0<c?c+3>>2:0)}0>c?c=a.replace(/^0+([0-9A-F]+)$/i,"$1"):c=a;return c}
+var Yf={"||":0,"&&":1,"|":2,"^":3,"&":4,"!=":5,"==":5,">=":6,">":6,"<=":6,"<":6,">>>":7,">>":7,"<<":7,"-":8,"+":8,"%":9,"/":9,"*":9};function bg(a){Tf.call(this,a);this.style=cg;this.F=dg();this.la=dg();this.O=dg();this.A=[];this.j=this.I=this.w=[];eg(this);this.W=0;fg(this);this.Z={};gg(this,a.messages);this.ea=a.commands;var b=this;window?void 0===window.pc8080&&(window.pc8080=function(a){return Fc(b,a)}):void 0===global.pc8080&&(global.pc8080=function(a){return Fc(b,a)})}aa(bg,Tf);l=bg.prototype;
 l.Ea=function(a,b,c,d){this.H=b;this.u=c;this.R=a;(a=Bc(a,"messages"))&&gg(this,a);this.ga=hg;Sd(this,64,function(a){a:{var b=d.H.b,c=a[0],e=a=0,k=b.length;if(c){a=ig(jg(d,c));if(-1===a){d.i("invalid address: "+c);break a}e=a>>>d.H.g;k=1}d.i("blockid   physical   blockaddr   used    size    type");d.i("--------  ---------  ----------  ------  ------  ----");for(var c=-1,p=0;k--;){var u=b[e];u.type==c?p++||d.i("..."):(c=u.type,p=Ib[c],u&&d.i(t(u.id)+"  %"+t(e<<d.H.g)+"  %%"+t(u.J)+"  "+x(u.pb)+"  "+
 x(u.size)+"  "+p),c!=dc&&(c=-1),p=0);a+=d.H.w;e++}}});Aa(this)};
 l.ca=function(a,b,c){var d=this;switch(b){case "debugInput":return this.U=this.P[b]=c,c.onkeydown=function(a){var b;if(13==a.keyCode)b=c.value,c.value="",Fc(d,b,!0);else if(27==a.keyCode)c.value=b="";else if(38==a.keyCode?(b=null,d.b<d.g.length-1&&(b=d.g[++d.b])):40==a.keyCode&&(0<d.b?b=d.g[--d.b]:(b="",d.b=-1)),null!=b){var e=b.length;c.value=b;c.setSelectionRange(e,e)}null!=b&&a.preventDefault&&a.preventDefault()},!0;case "debugEnter":return this.P[b]=c,lb(c,function(){if(d.U){var a=d.U.value;d.U.value=
diff --git a/versions/pcx86/1.34.0/pcx86-dbg.js b/versions/pcx86/1.34.0/pcx86-dbg.js
index 5aa39dcbc..07557823e 100644
--- a/versions/pcx86/1.34.0/pcx86-dbg.js
+++ b/versions/pcx86/1.34.0/pcx86-dbg.js
@@ -718,7 +718,7 @@ case "^":d=f^e;break;case "|":d=f|e;break;case "&&":d=f&&e?1:0;break;case "||":d
 function Px(a,b,c){var d;if(b){b=Qx(a,b);for(var e=0,f=!1,g=b,h=[],k=[],m=b.split(/(\|\||&&|\||^|&|!=|==|>=|>>>|>>|>|<=|<<|<|-|\+|%|\/|\*)/);e<m.length;){var p=m[e++],w=p.length,p=ra(p);if(!p){f=!0;break}p=Rx(a,p,null,!1===c);if(void 0===p){f=!0;c=!1;break}h.push(p);if(e==m.length)break;var p=m[e++],u=p.length;k.length&&Sx[p]<Sx[k[k.length-1]]&&Ox(h,k,1);k.push(p);b=b.substr(w+u)}Ox(h,k)&&1==h.length||(f=!0);f?c&&a.P("error parsing '"+g+"' at character "+(g.length-b.length)):(d=h.pop(),c&&Tx(a,null,
 d))}return d}function Qx(a,b){for(var c,d=/\{(.*?)\}/;(c=b.match(d))&&!(0<=c[1].indexOf("{"));){var e=Px(a,c[1]);b=b.replace("{"+c[1]+"}",null!=e?Ux(a,e):"undefined")}for(;(c=b.match(/\[(.*?)]/))&&!(0<=c[1].indexOf("["));)b=a.Pk(b,c[1]);for(;c=b.match(/\$([a-z]+)/i);){d=null;switch(c[1].toLowerCase()){case "ops":d=a.W-a.ga}if(null==d)break;b=b.replace(c[0],d.toString())}return b}
 function Rx(a,b,c,d){var e;null!=b?(e=a.gh(b),0<=e?e=a.hh(e):(e=a.da[b],null==e&&(e=ga(b,a.ya))),null!=e||d||a.P("invalid "+(c?c:"value")+": "+b)):d||a.P("missing "+(c||"value"));return e}function Tx(a,b,c){var d,e=!1;void 0!==c&&(e=!0,d=q(c,0,!0)+" "+c+". "+ja(c,0,!0)+" "+ia(c,4,!0),32<=c&&127>c&&(d+=" '"+String.fromCharCode(c)+"'"));a.P((null!=b?b+": ":"")+d);return e}function Vx(a,b){if(b)return Tx(a,b,a.da[b]);var c=0;for(b in a.da)Tx(a,b,a.da[b]),c++;return 0<c}
-function Ux(a,b){var c;c=void 0===c?0:c;switch(a.ya){case 8:a=ja(b,3*c);break;case 10:a=b.toString();break;default:a=q(b,2*c)}return a}var Sx={"||":0,"&&":1,"|":2,"^":3,"&":4,"!=":5,"==":5,">=":6,">":6,"<=":6,"<":6,">>>":7,">>":7,"<<":7,"-":8,"+":8,"%":9,"/":9,"*":9};
+function Ux(a,b){var c;c=void 0===c?0:c;switch(a.ya){case 8:a=ja(b,0<c?(c+2)/3|0:0);break;case 10:a=b;b=0<c?Math.ceil(.3*c):0;var d="";b?10<b&&(b=10):b=a&-65536?10:5;if(null==a||isNaN(a))for(;0<b--;)d="?"+d;else for(;0<b--;)d=String.fromCharCode(a%10+48)+d,a/=10;a=d;break;default:a=q(b,0<c?c+3>>2:0)}0>c?c=a.replace(/^0+([0-9A-F]+)$/i,"$1"):c=a;return c}var Sx={"||":0,"&&":1,"|":2,"^":3,"&":4,"!=":5,"==":5,">=":6,">":6,"<=":6,"<":6,">>>":7,">>":7,"<<":7,"-":8,"+":8,"%":9,"/":9,"*":9};
 function Wx(a){Nx.call(this,a);this.oa=4;this.ha=5;this.wa=1048575;this.K=Xx(this);this.Ga=Xx(this);this.Z=Xx(this);this.D=[];this.B=this.Y=this.M=[];Yx(this);this.ta=0;Zx(this);this.za={};$x(this,a.messages);this.Ca=a.commands;var b=this;window?void 0===window.pcx86&&(window.pcx86=function(a){return ay(b,a)}):void 0===global.pcx86&&(global.pcx86=function(a){return ay(b,a)})}ba(Wx,Nx);l=Wx.prototype;
 l.uc=function(a,b,c,d){this.ka=b;this.H=c;this.pa=a;this.Za=Ob(a,"FDC");this.Ha=Ob(a,"HDC");this.Tc=Ob(a,"FPU");this.G=Ob(a,"Mouse");(a=qd(a,"messages"))&&$x(this,a);this.ha=b.I>>2;this.wa=b.N;this.Ta=new Kd(this.H,7,"DBG");this.ma=by;80186<=this.H.ca&&(this.ma=by.slice(),this.ma[15]=cy,80286<=this.H.ca&&(this.ma[15]=dy,80386<=this.H.ca&&(this.oa=8)));rl(this,64,function(a){ey(d,d.H.sc,a[0])});rl(this,4,function(a){if(a=a[0]){var b=Rx(d,a);if(void 0===b)d.P("invalid selector: "+a);else if(a=fy(d,
 b,gy),d.P("dumpSel("+ka(a?a.U:b)+"): %"+q(a?a.Lb:null,d.ha)),a){var c,b=!1;if(a.type&4096)a.type&2048?(c="code"+(a.type&512?",readable":",execonly"),a.type&1024&&(c+=",conforming")):(c="data"+(a.type&512?",writable":",readonly"),a.type&1024&&(c+=",expdown")),a.type&256&&(c+=",accessed");else{var e=hy[a.type];e&&(c=e[0],b=e[1])}!c||a.jb&32768||(c+=",not present");d.P((b?"seg="+ka(a.ua&65535)+" off="+ka(a.Ka):"base="+q(a.ua,d.ha)+" limit="+iy(a.Ka))+" type="+r(a.type>>8)+" ("+c+") ext="+ka(a.ext&-65296)+
diff --git a/versions/pdpjs/1.34.0/pdp10-dbg.js b/versions/pdpjs/1.34.0/pdp10-dbg.js
index 465ffc82a..3eaf02134 100644
--- a/versions/pdpjs/1.34.0/pdp10-dbg.js
+++ b/versions/pdpjs/1.34.0/pdp10-dbg.js
@@ -28,8 +28,8 @@
  http://pcjs.org/modules/pdp10/lib/debugger.js (C) Jeff Parsons 2012-2017
 */
 var l,aa="function"==typeof Object.defineProperties?Object.defineProperty:function(a,b,c){if(c.get||c.set)throw new TypeError("ES3 does not support getters and setters.");a!=Array.prototype&&a!=Object.prototype&&(a[b]=c.value)},ba="undefined"!=typeof window&&window===this?this:"undefined"!=typeof global?global:this;function ea(){ea=function(){};ba.Symbol||(ba.Symbol=fa)}var ga=0;function fa(a){return"jscomp_symbol_"+(a||"")+ga++}
-function ha(){ea();var a=ba.Symbol.iterator;a||(a=ba.Symbol.iterator=ba.Symbol("iterator"));"function"!=typeof Array.prototype[a]&&aa(Array.prototype,a,{configurable:!0,writable:!0,value:function(){return oa(this)}});ha=function(){}}function oa(a){var b=0;return pa(function(){return b<a.length?{done:!1,value:a[b++]}:{done:!0}})}function pa(a){ha();a={next:a};a[ba.Symbol.iterator]=function(){return this};return a}
-function q(a,b){function c(){}c.prototype=b.prototype;a.prototype=new c;a.prototype.constructor=a;for(var d in b)if(Object.defineProperties){var e=Object.getOwnPropertyDescriptor(b,d);e&&Object.defineProperty(a,d,e)}else a[d]=b[d]}function qa(a,b){if(b){var c=ba;a=a.split(".");for(var d=0;d<a.length-1;d++){var e=a[d];e in c||(c[e]={});c=c[e]}a=a[a.length-1];d=c[a];b=b(d);b!=d&&null!=b&&aa(c,a,{configurable:!0,writable:!0,value:b})}}
+function ha(){ea();var a=ba.Symbol.iterator;a||(a=ba.Symbol.iterator=ba.Symbol("iterator"));"function"!=typeof Array.prototype[a]&&aa(Array.prototype,a,{configurable:!0,writable:!0,value:function(){return ia(this)}});ha=function(){}}function ia(a){var b=0;return pa(function(){return b<a.length?{done:!1,value:a[b++]}:{done:!0}})}function pa(a){ha();a={next:a};a[ba.Symbol.iterator]=function(){return this};return a}
+function r(a,b){function c(){}c.prototype=b.prototype;a.prototype=new c;a.prototype.constructor=a;for(var d in b)if(Object.defineProperties){var e=Object.getOwnPropertyDescriptor(b,d);e&&Object.defineProperty(a,d,e)}else a[d]=b[d]}function qa(a,b){if(b){var c=ba;a=a.split(".");for(var d=0;d<a.length-1;d++){var e=a[d];e in c||(c[e]={});c=c[e]}a=a[a.length-1];d=c[a];b=b(d);b!=d&&null!=b&&aa(c,a,{configurable:!0,writable:!0,value:b})}}
 qa("Math.trunc",function(a){return a?a:function(a){a=Number(a);if(isNaN(a)||Infinity===a||-Infinity===a||!a)return a;var b=Math.floor(Math.abs(a));return 0>a?-b:b}});qa("Math.log2",function(a){return a?a:function(a){return Math.log(a)/Math.LN2}});
 var ra=Math.pow(2,36),sa=-Math.pow(2,35),t={Vb:0,jb:1,Xb:2,Yb:3,Zb:4,$b:5,ac:6,bc:7,Wa:8,cc:9,kb:10,dc:11,ec:12,lb:13,fc:14,gc:15,hc:16,ic:17,jc:18,kc:19,lc:20,mc:21,nc:22,oc:23,pc:24,qc:25,rc:26," ":32,"!":33,'"':34,"#":35,$:36,"%":37,"&":38,"'":39,"(":40,")":41,"*":42,"+":43,",":44,"-":45,".":46,"/":47,0:48,1:49,2:50,3:51,4:52,5:53,6:54,7:55,8:56,9:57,":":58,";":59,"<":60,"=":61,">":62,"?":63,"@":64,Va:65,Ub:66,Wb:67,sc:68,E:69,tc:70,uc:71,vc:72,wc:73,xc:74,yc:75,zc:76,Ac:77,Bc:78,Cc:79,Dc:80,Q:81,
 Ec:82,Fc:83,Gc:84,Hc:85,Ic:86,Jc:87,Kc:88,Lc:89,ob:90,"[":91,"\\":92,"]":93,"^":94,_:95,"`":96,Mc:97,Nc:98,Oc:99,d:100,e:101,Pc:102,Qc:103,Rc:104,Sc:105,Tc:106,k:107,Uc:108,Vc:109,n:110,Wc:111,p:112,q:113,r:114,Xc:115,t:116,Zc:117,$c:118,ad:119,x:120,y:121,z:122,"{":123,"|":124,"}":125,"~":126,mb:127};
@@ -38,167 +38,167 @@ function x(a){window&&window.alert(a)}function wa(a){var b=!1;window&&(b=window.
 function z(a,b){var c;if(void 0!==a){var d;b&&(b=0<(d=b.indexOf("."))?b.substr(0,d+1):"");for(d=0;d<v.length;d++)if(c)c==v[d]&&(c=null);else if(!(a!=v[d].type||b&&v[d].id.indexOf(b)))return v[d]}return null}function A(a){var b=null;if(a=a.getAttribute("data-value"))try{b=eval("("+a+")")}catch(c){x(c.message+" ("+a+")")}return b}
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 h.stop=function(a,b){if(this.A.V){this.A.V=!1;this.w=b-this.Ia;if(!this.I){b="stopped";if(this.w){a-=this.Ha;var c=0<a?Math.round(1E3*this.w/a):0;b+=" (";af(this)&&(b+=this.X+" instructions, ",this.X=0);b+=this.w+" cycles, "+a+" ms, "+c+" hz)"}else z(this,-2147483648)&&(b+=" (use the 't' command to execute blocked faults)");this.v(b)}ie(this,!0);je(this);nk(this,this.f.g[7]);this.R=null}};function af(a){return 1<a.b.length||!!a.Y}
@@ -318,9 +318,9 @@ h.Bb=function(a,b,c){var d=!0;c||pk(this,a,b,!1,!0);if(a!=this.b){var e=Kj(b);if
 function pk(a,b,c,d,e){var f=!1;c=Kj(c);for(var g=1;g<b.length;g++){var k=b[g];if(c==Kj(k)&&(!d||k.Ua)){f=!0;k.Ua||e||qk(a,b,g,"cleared");b.splice(g,1);b!=a.b&&(b=b==a.C,k.Ma?(d=a.D,Zd(d.b[c>>>d.g],b)):Qe(a.f,b));k.Ua||Hj(a);break}}return f}function rk(a,b){for(var c=1;c<b.length;c++)qk(a,b,c);return b.length-1}function qk(a,b,c,d){c=b[c];a.v(b[0]+" "+Sj(a,c)+(d?" "+d:c.Pc?' "'+c.Pc+'"':""))}
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+function tk(a,b,c,d){var e=X(b.K),f=a.Ra(b,2),g,k;for(k in a.Ja)if(g=a.Ja[k][f&k])break;g||(g=uk);var l=g[0];0<=a.W.indexOf(l)&&(g=uk,l=g[0]);var m=k="",n=vk[l],q=g.length-1;l||q||(k=K(a,f));for(l=1;l<=q;l++){var t=g[l];if(void 0!==t){var r;r=a;var D=t,t=b,A="",B=D&wk;if(B==Y)t=t.K+((f&255)<<24>>23)&65535,A=K(r,t);else if(B==xk)t=t.K-((f&63)<<1)&65535,A=K(r,t);else if(B==yk)A=K(r,f&7,3);else if(B==zk)A=K(r,f&63,6);else if(B==Ak)A=K(r,f&255,8);else if(B=f&D,D&Bk&&(B>>=6,D>>=6),D&Z){var D=null,J=B&
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 function Hk(a,b){var c,d="";for(c=0;6>c;c++)d+=Gk(a,c);d=d+"\n"+(Gk(a,6)+Gk(a,7));d+=Gk(a,Xj)+Gk(a,Yj)+Gk(a,ak);d+=Fk(a,"T")+Fk(a,"N")+Fk(a,"Z")+Fk(a,"V")+Fk(a,"C");b&&(b=d,c=""+(Gk(a,bk)+Gk(a,ck)),c+=Gk(a,dk)+Gk(a,ek)+Gk(a,Zj),c=c+"\n"+(Gk(a,gk)+Gk(a,Vj)+Gk(a,fk)),d=b+("\n"+c));return d}h.me=function(a,b){return a[0]>b[0]?1:a[0]<b[0]?-1:0};
 function Ch(a,b,c,d,e){var f=[],g;for(g in e){var k=e[g];"number"==typeof k&&(e[g]=k={o:k});var l=k.o,m=k.a;if(void 0!==l){var n=f,l=[l>>>0,g],q=$a(n,l,a.me);0>q&&n.splice(-(q+1),0,l)}m&&(k.a=m.replace(/''/g,'"'))}a.B.push({Gk:b,K:c,Lf:d,ga:e,ie:f})}function Ik(a,b,c){var d=[],e=Kj(b)>>>0;for(b=0;b<a.B.length;b++){var f=a.B[b],g=f.K>>>0,k=f.Lf;if(e>=g&&e<g+k){e=$a(f.ie,[e-g],a.me);0<=e?Jk(a,b,e,d):c&&(e=~e,Jk(a,b,e-1,d),Jk(a,b,e,d));break}}return d}
@@ -335,20 +335,20 @@ function sk(a,b,c){var d=!0;try{b.length&&"end"!=b?c||a.v(kk+b):(a.O&&(a.v("ende
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-"":" from "+K(a,nf.call(a,Od),bc))+" to "+K(a,Pc,bc));of.call(a,Od,Pc,bc)}}break;case "g":a:{var Ei=g[1],rl=b;if(void 0!==Ei){var rf=Pj(a,Ei,!0);if(!rf)break a;Rj(a,rf,rl);a.Bb(a.b,rf,!0)}ik(a,!0,c)}break;case "h":a.A.V?(c||a.v("halting"),a.ba()):Ha(a,!0)||c||a.v("already halted");break;case "i":if("if"==g[0]){var sf;var Qc=b.substr(2),Qc=Ya(Qc);zj(a,Qc)?(c||a.v("true: "+Qc),sf=!0):(c||a.v("false: "+Qc),sf=!1);sf||(d=!1);break}f=!0;break;case "k":var sl=g[0];if("?"==g[1])a.v("stack trace commands:"),
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-null;if("ks"==sl){var Ji=Bb.match(/[0-9A-F]+$/);Ji&&(Ii=Lk(a,Ji[0]))}Bb=Xa(Bb,50)+"  ;"+(Ii||"stack="+Sj(a,Rc));a.v(Bb);tf++}tf||a.v("no return addresses found")}break;case "l":if("ln"==g[0]){Lk(a,g[1],!0);break}f=!0;break;case "m":a:{var Va,Wa=null,T=g[1];"?"==T&&(T=void 0);if(void 0!==T){var lb=0;if("all"==T)lb=1879046143,T=null;else if("on"==T)Wa=!0,T=null;else if("off"==T)Wa=!1,T=null;else{"keys"==T&&(T="key");"kbd"==T&&(T="keyboard");for(Va in Qb)if(T==Va){lb=Qb[Va];Wa=!!(a.ha&lb);break}if(!lb){a.v("unknown message category: "+
+a.v("\tdh [p] [n]    dump n instructions from history position p");Zb.length&&a.v("dump extension commands:\n\t"+Zb)}else if("state"==Ta){var df=Ok(a.J,!0);"console"==kb?console.log(df):(a.Ta&&(a.Ta.value=""),df&&a.v(df))}else if("symbols"==Ta)for(var ef=0;ef<a.B.length;ef++){var ff=a.B[ef],$b;for($b in ff.ga)if("."!=$b.charAt(0)){var ui=ff.ga[$b].o;if(void 0!==ui){var vi=ff.ga[$b].l;vi&&($b=vi);a.v(K(a,ui)+" "+$b)}}}else{if("d"==jb){for(Yb in Qb)if(g[1]==Yb){var wi=a.ka[Yb];wi?(g.shift(),g.shift(),
+wi(g)):a.v("no dump registered for "+Ta);break a}Ta||(jb=a.Ka||"dw")}else a.Ka=jb;if("dh"==jb){var xi=Ta,yi=kb,zi="",Ai=0,Ia=a.P,Ua=a.i;if(Ua.length){var Ca=+xi||a.pa,Lc=+yi||10;isNaN(Ca)?Ca=Lc:zi="more ";Ca>Ua.length&&(a.v("note: only "+Ua.length+" available"),Ca=Ua.length);Ia-=Ca;0>Ia&&(null==Ua[Ua.length-1].K?(Ca=Ia+Ca,Ia=0):Ia+=Ua.length);var gf=[];"call"==yi&&(Lc=1E5,gf=["CALL"]);for(void 0!==xi&&a.v(Ca+" instructions earlier:");0<Lc&&Ia!=a.P;){var Bi=Ua[Ia++];if(null==Bi.K)break;var Mc=X(Bi.K),
+nl=Ca--,Ci=tk(a,Mc,"history",nl);(!gf.length||0<=Ci.indexOf(gf[0]))&&a.v(Ci);Mc.xd&&(Ia+=Mc.xd,Lc-=Mc.xd,Ca-=Mc.xd);Ia>=Ua.length&&(Ia=0);a.pa=Ca;Ai++;Lc--}}Ai||(a.v("no "+zi+"history available"),a.pa=void 0)}else{var oa=Pj(a,Ta);if(oa)if("da"==jb){var hf=oa.Ma||65535<oa.K,O=Oe(a.f,oa.K||0,hf);a.v(Xa("",hf?12:19)+La(oa.K,hf?22:17,3)+"  "+E(oa.K,8));6>O.length?(2<O.length&&(a.v("    OFFSET:             "+La(O[3],13,3)+"  "+E(O[3],8)),a.v("UNIMAP["+Ma(O[1],2)+"]: "+La(O[2],22,3)+"  "+E(O[2],8))),a.v("  PHYSICAL: "+
+La(O[0],22,3)+"  "+E(O[0],8))):(a.v("    OFFSET:             "+La(O[1],13,3)+"  "+E(O[1],8)),a.v("+   "+Pk[O[2]]+"PAR"+O[3]+": "+La(O[4],22,3)+"  "+E(O[4],8)),a.v("&  MMUMASK: "+La(O[5],22,3)+"  "+E(O[5],8)),a.v("= PHYSICAL: "+La(O[0],22,3)+"  "+E(O[0],8)))}else{var xb=0,jf="ds"==jb;if(kb){if("l"==kb.charAt(0))kb=kb.substr(1)||ml,xb=Bj(a,kb);else{var Di=Pj(a,kb);Di&&(xb=Di.K-oa.K)}0>xb&&(xb=0);65536<xb&&(xb=65536)}var pl=a.Aa;oa.Aa&&(a.Aa=oa.Aa);for(var yb="dd"==jb?4:"db"==jb?1:2,Ld=yb*xb||128,kf=
+jf?16:a.Aa,ql=(Ld+kf-1)/kf|0||1,zb="";ql--&&0<Ld;){for(var Ab="",lf="",Ta=Sj(a,oa),Md=kf,Nc=0,Oc=0;0<Md&&0<Ld;){var ac=1,Nd=1==yb?a.Od(oa,ac):a.Ra(oa,ac=2),Nc=Nc|Nd<<(Oc<<3),Oc=Oc+ac;Oc==yb&&(jf?(Ab&&(Ab+=","),Ab+="0x"+F(Nc,yb<<1)):(Ab+=K(a,Nc,yb<<3),Ab+=1==yb?9==Md?"-":" ":"  "),Nc=Oc=0);Md-=ac;for(Ld-=ac;1==yb&&ac--;)var mf=Nd&255,lf=lf+(32<=mf&&128>mf?String.fromCharCode(mf):"."),Nd=Nd>>8}zb&&(zb+="\n");zb=jf?zb+(Ab+","):zb+(Ta+":  "+Ab+(Md?"":" "+lf))}zb&&a.v(zb);a.Fa=oa;a.Aa=pl}}}}break;case "e":if("else"==
+g[0])break;var bc,nf,of,pf,qf=g[0],rf=g[1];"eb"==qf?(bc=1,nf=255,of=a.Od,pf=a.Pd):"e"==qf||"ew"==qf?(bc=2,nf=65535,of=a.Ra,pf=a.Le):rf=null;if(null==rf)a.v("edit memory commands:"),a.v("\teb [a] [...]  edit bytes at address a"),a.v("\tew [a] [...]  edit words at address a");else{var Od=Pj(a,rf);if(Od)for(var Pd=2;Pd<g.length;Pd++){var Pc=zj(a,g[Pd]);if(void 0===Pc){a.v("unrecognized value: "+g[Pd]);break}Pc&~nf&&a.v("warning: "+F(Pc)+" exceeds "+bc+"-byte value");a.v("changing "+Sj(a,Od)+(z(a,16)?
+"":" from "+K(a,of.call(a,Od),bc<<3))+" to "+K(a,Pc,bc<<3));pf.call(a,Od,Pc,bc)}}break;case "g":a:{var Ei=g[1],rl=b;if(void 0!==Ei){var sf=Pj(a,Ei,!0);if(!sf)break a;Rj(a,sf,rl);a.Bb(a.b,sf,!0)}ik(a,!0,c)}break;case "h":a.A.V?(c||a.v("halting"),a.ba()):Ha(a,!0)||c||a.v("already halted");break;case "i":if("if"==g[0]){var tf;var Qc=b.substr(2),Qc=Ya(Qc);zj(a,Qc)?(c||a.v("true: "+Qc),tf=!0):(c||a.v("false: "+Qc),tf=!1);tf||(d=!1);break}f=!0;break;case "k":var sl=g[0];if("?"==g[1])a.v("stack trace commands:"),
+a.v("\tk\tshow frame addresses"),a.v("\tks\tshow symbol information");else{var uf=0,vf=X(),Rc=X(a.f.g[6]);for(a.v("stack trace for "+Sj(a,Rc));10>uf;){for(var Bb=null,tl=256;65536>Rc.K>>>0;){vf.K=a.Ra(Rc,2);if(null==Rc.K||!tl--)break;if(!(vf.K&1)){for(var ul=a,Qd=vf,Fi=null,Sc=Qd.K,Gi=Sc,wf=1;6>=wf&&Sc;wf++){if(2<wf){Qd.K=Sc;var Rd=tk(ul,Qd);if(0<=Rd.indexOf("JSR")){var Hi=Rd.indexOf(" ");if(Sc+(Rd.indexOf(" ",Hi+1)-Hi-1)/2==Gi){Fi=Rd;break}}}Sc-=2}Qd.K=Gi;if(Bb=Fi)break}}if(!Bb||null==Bb)break;var Ii=
+null;if("ks"==sl){var Ji=Bb.match(/[0-9A-F]+$/);Ji&&(Ii=Lk(a,Ji[0]))}Bb=Xa(Bb,50)+"  ;"+(Ii||"stack="+Sj(a,Rc));a.v(Bb);uf++}uf||a.v("no return addresses found")}break;case "l":if("ln"==g[0]){Lk(a,g[1],!0);break}f=!0;break;case "m":a:{var Va,Wa=null,T=g[1];"?"==T&&(T=void 0);if(void 0!==T){var lb=0;if("all"==T)lb=1879046143,T=null;else if("on"==T)Wa=!0,T=null;else if("off"==T)Wa=!1,T=null;else{"keys"==T&&(T="key");"kbd"==T&&(T="keyboard");for(Va in Qb)if(T==Va){lb=Qb[Va];Wa=!!(a.ha&lb);break}if(!lb){a.v("unknown message category: "+
 T);break a}}if(lb)if("on"==g[2])a.ha|=lb,Wa=!0;else if("off"==g[2]&&(a.ha&=~lb,Wa=!1,1073741824==lb)){for(var Ki=1E3<=a.M.length?a.M.length-1E3:0;Ki<a.M.length;)a.v(a.M[Ki++]);a.M=[]}}var vl=0,Tc="";for(Va in Qb)if(!T||T==Va){var wl=!!(a.ha&Qb[Va]);if(null===Wa||Wa==wl)Tc&&(Tc+=","),++vl%10||(Tc+="\n\t"),"key"==Va&&(Va="keys"),Tc+=Va}void 0===T&&a.v("message commands:\n\tm [category] [on|off]\tturn categories on/off");a.v((null!==Wa?Wa?"messages on:  ":"messages off: ":"message categories:\n\t")+
 (Tc||"none"));Hj(a)}break;case "p":if("print"==g[0]){Mk(a,b.substr(5));break}var xl=g[0];if("?"==g[1])a.v("step commands:"),a.v("\tp\tstep over instruction"),a.v("\tpr\tstep over instruction with register update");else{var Li="pr"==xl?1:0,Mi=1+Li;if(a.I)a.v("step in progress");else{var Sd=X(a.f.g[7]),cc=a.Ra(Sd);3==cc||4==cc||34816==(cc&65280)||32256==(cc&65024)||35072==(cc&65280)?(a.I=Mi,Qj(Sd,2)):2048==(cc&65024)&&(tk(a,Sd),a.I=Mi);a.I?(a.Bb(a.b,Sd,!0),ik(a)||(a.J&&pe(a.J),a.I=0)):Nk(a,Li?"tr":
 "t")}}break;case "r":if("reset"==b){a.J&&a.J.reset();break}lk(a,g);break;case "s":a:switch(g[1]){case "base":if(g[2]){var Uc=+g[2];if(8==Uc||10==Uc||16==Uc)a.Aa=Uc;else{a.v("invalid base: "+Uc);break}}a.v("default base: "+a.Aa);break;case "cs":var Vc;void 0!==g[3]&&(Vc=+g[3]);switch(g[2]){case "int":a.f.Ob=Vc;break;case "start":a.f.pc=Vc;break;case "stop":a.f.Rb=Vc;break;default:a.v("unknown cs option");break a}void 0!==Vc&&he(a.f);a.v("checksums "+(a.f.A.Nb?"enabled":"disabled"));break;case "sp":void 0!==
 g[2]&&(me(a.f,+g[2])||a.v("warning: using 1x multiplier, previous target not reached"));a.v("target speed: "+(a.f.xb.toFixed(2)+"Mhz")+" ("+a.f.mb+"x)");break;default:if(g[1]){a.v("unknown option: "+g[1]);break}case "?":a.v("debugger options:"),a.v("\tbase #\t\tset default base to #"),a.v("\tcs int #\tset checksum cycle interval to #"),a.v("\tcs start #\tset checksum cycle start count to #"),a.v("\tcs stop #\tset checksum cycle stop count to #"),a.v("\tsp #\t\tset speed multiplier to #")}break;case "t":Nk(a,
-g[0],g[1]);break;case "u":mk(a,g[1],g[2],8);break;case "v":if("var"==g[0]){Kk(a,b.substr(3))||(d=!1);break}if("ver"==g[0]){a.v((Gb||"PDP11")+" version 1.34.0 ("+a.f.ka+",RELEASE"+(Ib?",TYPEDARRAYS":Hb?",BYTEARRAYS":",LONGARRAYS")+")");a.v(window?window.navigator.userAgent:"");break}f=!0;break;case "?":if(g[1]){Mk(a,b.substr(1));break}var wf="commands:",xf;for(xf in Qk)wf+="\n"+Xa(xf,9)+Qk[xf];af(a)||(wf+="\nnote: history disabled if no exec breakpoints");a.v(wf);break;default:f=!0}f&&(a.v("unknown command: "+
+g[0],g[1]);break;case "u":mk(a,g[1],g[2],8);break;case "v":if("var"==g[0]){Kk(a,b.substr(3))||(d=!1);break}if("ver"==g[0]){a.v((Gb||"PDP11")+" version 1.34.0 ("+a.f.ka+",RELEASE"+(Ib?",TYPEDARRAYS":Hb?",BYTEARRAYS":",LONGARRAYS")+")");a.v(window?window.navigator.userAgent:"");break}f=!0;break;case "?":if(g[1]){Mk(a,b.substr(1));break}var xf="commands:",yf;for(yf in Qk)xf+="\n"+Xa(yf,9)+Qk[yf];af(a)||(xf+="\nnote: history disabled if no exec breakpoints");a.v(xf);break;default:f=!0}f&&(a.v("unknown command: "+
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