diff --git a/Gemfile.lock b/Gemfile.lock
index bdab5d6c6..feac380ad 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (4.2.6)
+    activesupport (4.2.7)
       i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
@@ -12,51 +12,56 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.10.0)
-    colorator (0.1)
-    ethon (0.9.0)
+    colorator (1.1.0)
+    ethon (0.9.1)
       ffi (>= 1.3.0)
     execjs (2.7.0)
     faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
-    ffi (1.9.10)
+    ffi (1.9.14)
+    forwardable-extended (2.6.0)
     gemoji (2.1.0)
-    github-pages (80)
-      github-pages-health-check (= 1.1.0)
-      jekyll (= 3.1.6)
+    github-pages (97)
+      activesupport (= 4.2.7)
+      github-pages-health-check (= 1.2.0)
+      jekyll (= 3.2.1)
       jekyll-coffeescript (= 1.0.1)
       jekyll-feed (= 0.5.1)
       jekyll-gist (= 1.4.0)
-      jekyll-github-metadata (= 1.11.1)
-      jekyll-mentions (= 1.1.2)
+      jekyll-github-metadata (= 2.1.0)
+      jekyll-mentions (= 1.2.0)
       jekyll-paginate (= 1.1.0)
-      jekyll-redirect-from (= 0.10.0)
+      jekyll-redirect-from (= 0.11.0)
       jekyll-sass-converter (= 1.3.0)
-      jekyll-seo-tag (= 1.4.0)
+      jekyll-seo-tag (= 2.0.0)
       jekyll-sitemap (= 0.10.0)
-      jemoji (= 0.6.2)
-      kramdown (= 1.10.0)
+      jekyll-swiss (= 0.4.0)
+      jemoji (= 0.7.0)
+      kramdown (= 1.11.1)
       liquid (= 3.0.6)
       listen (= 3.0.6)
       mercenary (~> 0.3)
-      rouge (= 1.10.1)
+      minima (= 1.2.0)
+      rouge (= 1.11.1)
       terminal-table (~> 1.4)
-    github-pages-health-check (1.1.0)
+    github-pages-health-check (1.2.0)
       addressable (~> 2.3)
       net-dns (~> 0.8)
       octokit (~> 4.0)
       public_suffix (~> 1.4)
       typhoeus (~> 0.7)
-    html-pipeline (2.4.1)
-      activesupport (>= 2, < 5)
+    html-pipeline (2.4.2)
+      activesupport (>= 2)
       nokogiri (>= 1.4)
     i18n (0.7.0)
-    jekyll (3.1.6)
-      colorator (~> 0.1)
+    jekyll (3.2.1)
+      colorator (~> 1.0)
       jekyll-sass-converter (~> 1.0)
       jekyll-watch (~> 1.1)
       kramdown (~> 1.3)
       liquid (~> 3.0)
       mercenary (~> 0.3.3)
+      pathutil (~> 0.9)
       rouge (~> 1.7)
       safe_yaml (~> 1.0)
     jekyll-coffeescript (1.0.1)
@@ -64,56 +69,65 @@ GEM
     jekyll-feed (0.5.1)
     jekyll-gist (1.4.0)
       octokit (~> 4.2)
-    jekyll-github-metadata (1.11.1)
+    jekyll-github-metadata (2.1.0)
+      jekyll (~> 3.1)
       octokit (~> 4.0)
-    jekyll-mentions (1.1.2)
+    jekyll-mentions (1.2.0)
+      activesupport (~> 4.0)
       html-pipeline (~> 2.3)
       jekyll (~> 3.0)
     jekyll-paginate (1.1.0)
-    jekyll-redirect-from (0.10.0)
+    jekyll-redirect-from (0.11.0)
       jekyll (>= 2.0)
     jekyll-sass-converter (1.3.0)
       sass (~> 3.2)
-    jekyll-seo-tag (1.4.0)
-      jekyll (~> 3.0)
+    jekyll-seo-tag (2.0.0)
+      jekyll (~> 3.1)
     jekyll-sitemap (0.10.0)
-    jekyll-watch (1.4.0)
+    jekyll-swiss (0.4.0)
+    jekyll-watch (1.5.0)
       listen (~> 3.0, < 3.1)
-    jemoji (0.6.2)
+    jemoji (0.7.0)
+      activesupport (~> 4.0)
       gemoji (~> 2.0)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0)
     json (1.8.3)
-    kramdown (1.10.0)
+    kramdown (1.11.1)
     liquid (3.0.6)
     listen (3.0.6)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
     mercenary (0.3.6)
-    mini_portile2 (2.0.0)
-    minitest (5.9.0)
+    mini_portile2 (2.1.0)
+    minima (1.2.0)
+    minitest (5.9.1)
     multipart-post (2.0.0)
     net-dns (0.8.0)
-    nokogiri (1.6.7.2)
-      mini_portile2 (~> 2.0.0.rc2)
+    nokogiri (1.6.8.1)
+      mini_portile2 (~> 2.1.0)
     octokit (4.3.0)
       sawyer (~> 0.7.0, >= 0.5.3)
+    pathutil (0.14.0)
+      forwardable-extended (~> 2.6)
     public_suffix (1.5.3)
     rb-fsevent (0.9.7)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)
-    rouge (1.10.1)
+    rouge (1.11.1)
     safe_yaml (1.0.4)
     sass (3.4.22)
     sawyer (0.7.0)
       addressable (>= 2.3.5, < 2.5)
       faraday (~> 0.8, < 0.10)
-    terminal-table (1.5.2)
+    terminal-table (1.7.3)
+      unicode-display_width (~> 1.1.1)
     thread_safe (0.3.5)
     typhoeus (0.8.0)
       ethon (>= 0.8.0)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
+    unicode-display_width (1.1.1)
 
 PLATFORMS
   ruby
diff --git a/_config.yml b/_config.yml
index 4b36d20d5..fe5df2c08 100644
--- a/_config.yml
+++ b/_config.yml
@@ -3,10 +3,11 @@
 title: "PCjs Machines"
 email: Jeff@pcjs.org
 description: >
-  PCjs: Home of the original IBM PC emulator in a browser.
-  Classic computer simulations in JavaScript, including the IBM PC and other x86-based machines, 6502-based
-  machines such as the Ohio Scientific Challenger 1P, and 8080-based machines such as Space Invaders and the DEC VT100 Terminal. 
-  Includes an archive of historical PC software and publications.
+  Welcome to PCjs, home of the original IBM PC in a web browser.
+  PCjs provides a variety of computer emulators written in JavaScript, including PCx86 for x86-based machines
+  (up through the 80386), C1Pjs for the 6502-based Ohio Scientific Challenger 1P, PC8080 for 8080-based machines
+  such as Space Invaders and the DEC VT100 Terminal, and PDPjs for PDP-11 machines like the 11/45 and 11/70.
+  PCjs also provides an archive of selected historical PC software, publications, and reference materials.
 baseurl: ""                 # "/pcjs" when using http://jeffpar.github.io or "" when using http://www.pcjs.org 
 url: "http://www.pcjs.org"  # "http://jeffpar.github.io" or "http://www.pcjs.org"
 twitter_username: jeffpar
@@ -18,7 +19,7 @@ encoding: UTF-8
 
 # Build settings
 
-exclude: ["index.html", "**/index.html", "**/archive", "**/c64", "logs", "node_modules", "projects", "**/private", "src", "**/src", "tmp", "**/tmp", "videos", "web", ".git", ".idea"]
+exclude: ["index.html", "**/index.html", "**/archive", "**/ecp", "**/c64", "logs", "node_modules", "projects", "**/private", "**/rt11", "src", "**/src", "tmp", "**/tmp", "videos", "web", ".git", ".idea"]
 markdown: kramdown
 kramdown:
   input: GFM
@@ -32,7 +33,7 @@ gems:
 
 pcjs:
   domain: pcjs.org    # whereas site.url is used for linking purposes, site.pcjs.domain is used for display purposes
-  version: 1.24.1     # IMPORTANT: keep pcjs.version in sync with package.json:version
+  version: 1.30.0     # IMPORTANT: keep pcjs.version in sync with package.json:version
   compiled: true      # by default, the compiled pcjs.version scripts will be used (eg, pcx86.js or pcx86-dbg.js)
   c1p_scripts:        # if pcjs.compiled is false, the following scripts will be included instead, in the order listed
     - /modules/shared/lib/defines.js
@@ -127,3 +128,31 @@ pcjs:
     - /modules/shared/lib/state.js
     - /modules/shared/lib/embed.js
     - /modules/shared/lib/save.js
+  pdp11_scripts:
+    - /modules/shared/lib/defines.js
+    - /modules/shared/lib/dumpapi.js
+    - /modules/shared/lib/reportapi.js
+    - /modules/shared/lib/userapi.js
+    - /modules/shared/lib/keys.js
+    - /modules/shared/lib/strlib.js
+    - /modules/shared/lib/usrlib.js
+    - /modules/shared/lib/weblib.js
+    - /modules/shared/lib/component.js
+    - /modules/pdp11/lib/defines.js
+    - /modules/pdp11/lib/messages.js
+    - /modules/pdp11/lib/panel.js
+    - /modules/pdp11/lib/bus.js
+    - /modules/pdp11/lib/device.js
+    - /modules/pdp11/lib/memory.js
+    - /modules/pdp11/lib/cpu.js
+    - /modules/pdp11/lib/cpustate.js
+    - /modules/pdp11/lib/cpuops.js
+    - /modules/pdp11/lib/rom.js
+    - /modules/pdp11/lib/ram.js
+    - /modules/pdp11/lib/keyboard.js
+    - /modules/pdp11/lib/serialport.js
+    - /modules/shared/lib/debugger.js
+    - /modules/pdp11/lib/debugger.js
+    - /modules/pdp11/lib/computer.js
+    - /modules/shared/lib/state.js
+    - /modules/shared/lib/embed.js
diff --git a/_includes/machine-engines.html b/_includes/machine-engines.html
index 51951229a..1b68099fb 100644
--- a/_includes/machine-engines.html
+++ b/_includes/machine-engines.html
@@ -5,7 +5,7 @@ in the Front Matter of our Markdown documents, for compatibility with the Jekyll
 
     'id' (eg, "ibm5150")
     'name' (eg, "IBM PC (Model 5150) with Monochrome Display")
-    'type' (eg, "c1p", "pcx86", "pc8080")
+    'type' (eg, "c1p", "pcx86", "pc8080", "pdp11")
     'debugger' (default is false)
     'config' (default is "machine.xml")
     'template' (default is "machine.xsl")
@@ -35,10 +35,12 @@ of our Markdown or XML documents.  Examples: 'automount' becomes 'autoMount', 'a
 {% endcomment %}
 {% for machine in page.machines %}
   {% capture machine_type %}{{ machine.type | remove:"-dbg" }}{% endcapture %}
-  {% if machine_type != "c1p" %}
-    {% capture machine_app %}{{ machine_type }}{% endcapture %}
+  {% if machine_type == "c1p" %}
+    {% assign machine_app = "c1pjs" %}
+  {% elsif machine_type == "pdp11" %}
+    {% assign machine_app = "pdpjs" %}
   {% else %}
-    {% capture machine_app %}{{ machine_type }}js{% endcapture %}
+    {% capture machine_app %}{{ machine_type }}{% endcapture %}
   {% endif %}
   {% if machine.debugger %}
     {% capture machine_file %}{{ machine_type }}-dbg{% endcapture %}
@@ -112,6 +114,7 @@ of our Markdown or XML documents.  Examples: 'automount' becomes 'autoMount', 'a
     {% if machine_type == "c1p" %}{% assign array_scripts = site.pcjs.c1p_scripts %}{% endif %}
     {% if machine_type == "pcx86" %}{% assign array_scripts = site.pcjs.pcx86_scripts %}{% endif %}
     {% if machine_type == "pc8080" %}{% assign array_scripts = site.pcjs.pc8080_scripts %}{% endif %}
+    {% if machine_type == "pdp11" %}{% assign array_scripts = site.pcjs.pdp11_scripts %}{% endif %}
     {% for script in array_scripts %}
       {% if script != "/modules/shared/lib/nodebug.js" or machine.debug != true %}
         {% capture machine_script %}<script type="text/javascript" src="{{ site.baseurl }}{{ script }}"></script>{% endcapture %}
diff --git a/_includes/machine-styles.html b/_includes/machine-styles.html
index 1f5ba10e0..a954cefb6 100644
--- a/_includes/machine-styles.html
+++ b/_includes/machine-styles.html
@@ -1,15 +1,17 @@
 {% for machine in page.machines %}
   {% capture machine_type %}{{ machine.type | remove:"-dbg" }}{% endcapture %}
-  {% if machine_type != "c1p" %}
-      {% capture machine_app %}{{ machine_type }}{% endcapture %}
-    {% else %}
-      {% capture machine_app %}{{ machine_type }}js{% endcapture %}
+  {% if machine_type == "c1p" %}
+    {% assign machine_app = "c1pjs" %}
+  {% elsif machine_type == "pdp11" %}
+    {% assign machine_app = "pdpjs" %}
+  {% else %}
+    {% capture machine_app %}{{ machine_type }}{% endcapture %}
   {% endif %}
   {% unless site.pcjs.compiled == true and machine.uncompiled != true %}
-    {% if machine_type != "c1p" %}
-      {% capture machine_style %}{{ site.baseurl }}/modules/shared/templates/components.css{% endcapture %}
+    {% if machine_type == "c1p" %}
+      {% capture machine_style %}{{ site.baseurl }}/modules/c1pjs/templates/components.css{% endcapture %}
     {% else %}
-      {% capture machine_style %}{{ site.baseurl }}/modules/{{ machine_app }}/templates/components.css{% endcapture %}
+      {% capture machine_style %}{{ site.baseurl }}/modules/shared/templates/components.css{% endcapture %}
     {% endif %}
   {% else %}
     {% capture machine_style %}{{ site.baseurl }}/versions/{{ machine_app }}/{{ site.pcjs.version }}/components.css{% endcapture %}
diff --git a/devices/pdp11/machine/1170/machine.xml b/devices/pdp11/machine/1170/machine.xml
index 2dbff9c67..a97be9c25 100644
--- a/devices/pdp11/machine/1170/machine.xml
+++ b/devices/pdp11/machine/1170/machine.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<?xml-stylesheet type="text/xsl" href="/versions/pdp11/1.30.0/machine.xsl"?>
+<?xml-stylesheet type="text/xsl" href="/versions/pdpjs/1.30.0/machine.xsl"?>
 <machine id="test1170" class="pdp11" border="1" pos="center" background="#FAEBD7">
 	<name pos="center">PDP-11/70 Test Machine</name>
 	<computer id="computer" busWidth="22"/>
diff --git a/devices/pdp11/machine/1170/test/machine.xml b/devices/pdp11/machine/1170/test/machine.xml
index 040b60897..2c7f044fb 100644
--- a/devices/pdp11/machine/1170/test/machine.xml
+++ b/devices/pdp11/machine/1170/test/machine.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<?xml-stylesheet type="text/xsl" href="/versions/pdp11/1.30.0/machine.xsl"?>
+<?xml-stylesheet type="text/xsl" href="/versions/pdpjs/1.30.0/machine.xsl"?>
 <machine id="test1170" class="pdp11" border="1" pos="center" background="#FAEBD7">
 	<name pos="center">PDP-11/70 Test Machine</name>
 	<computer id="computer" busWidth="22"/>
diff --git a/docs/pcx86/examples/pcx86-dbg.js b/docs/pcx86/examples/pcx86-dbg.js
index 590af5c84..c865f1188 100644
--- a/docs/pcx86/examples/pcx86-dbg.js
+++ b/docs/pcx86/examples/pcx86-dbg.js
@@ -820,4 +820,4 @@ a):f("transformToFragment failed")):f("unable to transform XML: unsupported brow
 function ws(a,b,c,d){if(!c&&b){d.push(b);a=lb[d[0]];b=null;for(var e in a)if(ma(e,"components.xsl")){b=e.replace(".xsl",".css");break}b?Aa(b,null,!0,function(a,b){xs(b,d)}):xs(null,d)}else w("Error ("+c+") requesting "+a)}
 function xs(a,b){var c,d,e,f=b[0],g=b[1];c=b[4];c=c.match(/^(\s*\(function\(\)\{)([\s\S]*)(}\)\(\);\s*)$/);var h=lb[f],k={},m;for(m in h){var n=h[m],t=ka(m);if("xml"==t){for(t=/[ \t]*<disk [^>]*path=(['"])(.*?)\1.*?<\/disk>\n?/g;d=t.exec(h[m]);){var q=d[2];q&&(h[q]||(n=n.replace(d[0],"")))}d=m=ja(m)}else"xsl"==t&&(e=m=ja(m));k[m]=n}a&&(k[m="css"]=a);b[2]&&(k[m="parms"]=b[2]);b[3]&&(k[m="state"]=b[3]);d&&e?(a=JSON.stringify(k),g+=".js",c=c[1]+"var resources="+a+";"+c[2]+c[3],c=c.replace(/\u00A9/g,
 "&#xA9;"),a=Na(c,"javascript",!1,g),a=a+(', copy it to your web server as "'+g+'", and then add the following to your web page:\n\n')+('<div id="'+f+'"></div>\n')+"...\n",a=a+('<script type="text/javascript" src="'+g+'">\x3c/script>\n')+('<script type="text/javascript">embedPC("'+f+'","'+d+'","'+e+'");\x3c/script>\n\n')+"The machine should appear where the <div> is located.",w(a)):w("Missing XML/XSL resources")}
-window.savePC=function(a,b,c){var d=pb("Computer",a),e=pb("Debugger",a);if(d){var f=Qr(d,!0),g=d.U?JSON.stringify(d.U):null;b||(b="/versions/pcjs/1.30.0/pc"+(e?"-dbg":"")+".js");if(c&&c({state:f,Ok:g}))return!0;Aa(b,null,!0,function(c,d,e){ws(c,d,e,[a,ja(b,!0),g,f])});return!0}w("Unable to identify machine '"+a+"'");return!1};})();
+window.savePC=function(a,b,c){var d=pb("Computer",a),e=pb("Debugger",a);if(d){var f=Qr(d,!0),g=d.U?JSON.stringify(d.U):null;b||(b="/versions/pcx86/1.30.0/pcx86"+(e?"-dbg":"")+".js");if(c&&c({state:f,Ok:g}))return!0;Aa(b,null,!0,function(c,d,e){ws(c,d,e,[a,ja(b,!0),g,f])});return!0}w("Unable to identify machine '"+a+"'");return!1};})();
diff --git a/docs/pcx86/examples/pcx86.js b/docs/pcx86/examples/pcx86.js
index b08059b8d..973fbb434 100644
--- a/docs/pcx86/examples/pcx86.js
+++ b/docs/pcx86/examples/pcx86.js
@@ -638,4 +638,4 @@ a):f("transformToFragment failed")):f("unable to transform XML: unsupported brow
 function Jn(a,b,c,d){if(!c&&b){d.push(b);a=Ua[d[0]];b=null;for(var e in a)if(ia(e,"components.xsl")){b=e.replace(".xsl",".css");break}b?sa(b,null,!0,function(a,b){Kn(b,d)}):Kn(null,d)}else r("Error ("+c+") requesting "+a)}
 function Kn(a,b){var c,d,e,f=b[0],g=b[1];c=b[4];c=c.match(/^(\s*\(function\(\)\{)([\s\S]*)(}\)\(\);\s*)$/);var h=Ua[f],k={},m;for(m in h){var q=h[m],y=ha(m);if("xml"==y){for(y=/[ \t]*<disk [^>]*path=(['"])(.*?)\1.*?<\/disk>\n?/g;d=y.exec(h[m]);){var w=d[2];w&&(h[w]||(q=q.replace(d[0],"")))}d=m=ga(m)}else"xsl"==y&&(e=m=ga(m));k[m]=q}a&&(k[m="css"]=a);b[2]&&(k[m="parms"]=b[2]);b[3]&&(k[m="state"]=b[3]);d&&e?(a=JSON.stringify(k),g+=".js",c=c[1]+"var resources="+a+";"+c[2]+c[3],c=c.replace(/\u00A9/g,
 "&#xA9;"),a=Aa(c,"javascript",!1,g),a=a+(', copy it to your web server as "'+g+'", and then add the following to your web page:\n\n')+('<div id="'+f+'"></div>\n')+"...\n",a=a+('<script type="text/javascript" src="'+g+'">\x3c/script>\n')+('<script type="text/javascript">embedPC("'+f+'","'+d+'","'+e+'");\x3c/script>\n\n')+"The machine should appear where the <div> is located.",r(a)):r("Missing XML/XSL resources")}
-window.savePC=function(a,b,c){var d=Ya("Computer",a),e=Ya("Debugger",a);if(d){var f=zn(d,!0),g=d.L?JSON.stringify(d.L):null;b||(b="/versions/pcjs/1.30.0/pc"+(e?"-dbg":"")+".js");if(c&&c({state:f,Gj:g}))return!0;sa(b,null,!0,function(c,d,e){Jn(c,d,e,[a,ga(b,!0),g,f])});return!0}r("Unable to identify machine '"+a+"'");return!1};})();
+window.savePC=function(a,b,c){var d=Ya("Computer",a),e=Ya("Debugger",a);if(d){var f=zn(d,!0),g=d.L?JSON.stringify(d.L):null;b||(b="/versions/pcx86/1.30.0/pcx86"+(e?"-dbg":"")+".js");if(c&&c({state:f,Gj:g}))return!0;sa(b,null,!0,function(c,d,e){Jn(c,d,e,[a,ga(b,!0),g,f])});return!0}r("Unable to identify machine '"+a+"'");return!1};})();
diff --git a/index.md b/index.md
index c77cdee31..5aec3230c 100644
--- a/index.md
+++ b/index.md
@@ -16,8 +16,9 @@ one of several JavaScript Machines in the [PCjs Project](https://github.com/jeff
 includes:
 
 * [PCx86](/docs/pcx86/), an x86-based IBM PC and PC-compatible emulator
-* [PC8080](/modules/pc8080/), an 8080-based machine emulator (e.g., [Space Invaders](/devices/pc8080/machine/invaders/), [VT100 Terminal](/devices/pc8080/machine/vt100/))
-* [C1Pjs](/docs/c1pjs/), a 6502-based emulation of the Ohio Scientific [Challenger 1P](/devices/c1p/)
+* [PC8080](/modules/pc8080/), an 8080 machine emulator (e.g., [Space Invaders](/devices/pc8080/machine/invaders/), [VT100 Terminal](/devices/pc8080/machine/vt100/))
+* [C1Pjs](/docs/c1pjs/), an emulation of the 6502-based Ohio Scientific [Challenger 1P](/devices/c1p/)
+* [PDPjs](/modules/pdp11/), a PDP-11 machine emulator currently in development (e.g., [PDP-11/70](/devices/pdp11/machine/1170/))
 
 All PCjs computer simulations are written entirely in [JavaScript](/modules/).  No Flash, Java or other plugins are
 required.  Supported browsers include modern versions of Chrome, Safari, Firefox, Internet Explorer (v9.0 and up), Edge,
diff --git a/modules/pdp11/lib/computer.js b/modules/pdp11/lib/computer.js
index e2d9b618b..b62519a07 100644
--- a/modules/pdp11/lib/computer.js
+++ b/modules/pdp11/lib/computer.js
@@ -183,7 +183,7 @@ function ComputerPDP11(parmsComputer, parmsMachine, fSuspended) {
         }
     }
 
-    this.println(PDP11.APPNAME + " v" + (XMLVERSION || PDP11.APPVERSION) + "\n" + COPYRIGHT + "\n" + LICENSE);
+    this.println(PDP11.APPNAME + " v" + PDP11.APPVERSION + "\n" + COPYRIGHT + "\n" + LICENSE);
 
     this.println("Portions adapted from the PDP-11/70 Emulator v1.3 by Paul Nankervis <paulnank@hotmail.com>");
 
@@ -1458,7 +1458,7 @@ ComputerPDP11.init = function()
     /*
      * In non-COMPILED builds, embedMachine() may have set XMLVERSION.
      */
-    if (!COMPILED && PDP11.XMLVERSION) PDP11.APPVERSION = PDP11.XMLVERSION;
+    if (!COMPILED && XMLVERSION) PDP11.APPVERSION = XMLVERSION;
 
     var aeMachines = Component.getElementsByClass(document, PDP11.APPCLASS + "-machine");
 
diff --git a/modules/pdp11/lib/cpustate.js b/modules/pdp11/lib/cpustate.js
index 9089d93d4..5e0ffd2c0 100644
--- a/modules/pdp11/lib/cpustate.js
+++ b/modules/pdp11/lib/cpustate.js
@@ -205,9 +205,7 @@ CPUStatePDP11.prototype.resetRegs = function()
     this.mmuMask = [            // mask to control I&D access for each mode
         0x7, 0x7, 0x7, 0x7
     ];
-    /**
-     * @type {Array.<InterruptEvent>}
-     */
+    /** @type {Array.<InterruptEvent>} */
     this.interruptQueue = [];
     this.opFlags |= PDP11.OPFLAG.INTQ;
     this.initMemoryAccess();
@@ -617,12 +615,30 @@ CPUStatePDP11.prototype.interrupt = function(delay, priority, vector, callback)
             }
             delay -= this.interruptQueue[i].delay;
         }
-        this.interruptQueue.splice(i + 1, 0, {
-            "delay": delay,
-            "priority": (priority << 5) & 0xe0,
-            "vector": vector,
-            "callback": callback
-        });
+        /*
+         * NOTE regarding a Google Closure Compiler "bug": if an InterruptEvent is inserted into the
+         * interruptQueue with the named properties below, they will never be seen by the rest of the
+         * code, because the compiler renames all other property references EXCEPT these.
+         *
+         *      this.interruptQueue.splice(i + 1, 0, {
+         *          "delay": delay,
+         *          "priority": (priority << 5) & 0xe0,
+         *          "vector": vector,
+         *          "callback": callback
+         *      });
+         *
+         * Perhaps if the inlined object had been explicitly @typed, that wouldn't have happened, but
+         * I'm playing it safe now: I've taken the object out-of-line, removed the quoted property names,
+         * and explicitly typed it.  The compiler re-inlines the object with correctly renamed properties.
+         */
+        /** @type {InterruptEvent} */
+        var interruptEvent = {
+            delay: delay,
+            priority: (priority << 5) & 0xe0,
+            vector: vector,
+            callback: callback
+        };
+        this.interruptQueue.splice(i + 1, 0, interruptEvent);
     }
     this.opFlags |= PDP11.OPFLAG.INTQ;
 };
diff --git a/versions/pcx86/1.30.0/pcx86-dbg.js b/versions/pcx86/1.30.0/pcx86-dbg.js
index 590af5c84..c865f1188 100644
--- a/versions/pcx86/1.30.0/pcx86-dbg.js
+++ b/versions/pcx86/1.30.0/pcx86-dbg.js
@@ -820,4 +820,4 @@ a):f("transformToFragment failed")):f("unable to transform XML: unsupported brow
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 function xs(a,b){var c,d,e,f=b[0],g=b[1];c=b[4];c=c.match(/^(\s*\(function\(\)\{)([\s\S]*)(}\)\(\);\s*)$/);var h=lb[f],k={},m;for(m in h){var n=h[m],t=ka(m);if("xml"==t){for(t=/[ \t]*<disk [^>]*path=(['"])(.*?)\1.*?<\/disk>\n?/g;d=t.exec(h[m]);){var q=d[2];q&&(h[q]||(n=n.replace(d[0],"")))}d=m=ja(m)}else"xsl"==t&&(e=m=ja(m));k[m]=n}a&&(k[m="css"]=a);b[2]&&(k[m="parms"]=b[2]);b[3]&&(k[m="state"]=b[3]);d&&e?(a=JSON.stringify(k),g+=".js",c=c[1]+"var resources="+a+";"+c[2]+c[3],c=c.replace(/\u00A9/g,
 "&#xA9;"),a=Na(c,"javascript",!1,g),a=a+(', copy it to your web server as "'+g+'", and then add the following to your web page:\n\n')+('<div id="'+f+'"></div>\n')+"...\n",a=a+('<script type="text/javascript" src="'+g+'">\x3c/script>\n')+('<script type="text/javascript">embedPC("'+f+'","'+d+'","'+e+'");\x3c/script>\n\n')+"The machine should appear where the <div> is located.",w(a)):w("Missing XML/XSL resources")}
-window.savePC=function(a,b,c){var d=pb("Computer",a),e=pb("Debugger",a);if(d){var f=Qr(d,!0),g=d.U?JSON.stringify(d.U):null;b||(b="/versions/pcjs/1.30.0/pc"+(e?"-dbg":"")+".js");if(c&&c({state:f,Ok:g}))return!0;Aa(b,null,!0,function(c,d,e){ws(c,d,e,[a,ja(b,!0),g,f])});return!0}w("Unable to identify machine '"+a+"'");return!1};})();
+window.savePC=function(a,b,c){var d=pb("Computer",a),e=pb("Debugger",a);if(d){var f=Qr(d,!0),g=d.U?JSON.stringify(d.U):null;b||(b="/versions/pcx86/1.30.0/pcx86"+(e?"-dbg":"")+".js");if(c&&c({state:f,Ok:g}))return!0;Aa(b,null,!0,function(c,d,e){ws(c,d,e,[a,ja(b,!0),g,f])});return!0}w("Unable to identify machine '"+a+"'");return!1};})();
diff --git a/versions/pcx86/1.30.0/pcx86.js b/versions/pcx86/1.30.0/pcx86.js
index b08059b8d..973fbb434 100644
--- a/versions/pcx86/1.30.0/pcx86.js
+++ b/versions/pcx86/1.30.0/pcx86.js
@@ -638,4 +638,4 @@ a):f("transformToFragment failed")):f("unable to transform XML: unsupported brow
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 function Kn(a,b){var c,d,e,f=b[0],g=b[1];c=b[4];c=c.match(/^(\s*\(function\(\)\{)([\s\S]*)(}\)\(\);\s*)$/);var h=Ua[f],k={},m;for(m in h){var q=h[m],y=ha(m);if("xml"==y){for(y=/[ \t]*<disk [^>]*path=(['"])(.*?)\1.*?<\/disk>\n?/g;d=y.exec(h[m]);){var w=d[2];w&&(h[w]||(q=q.replace(d[0],"")))}d=m=ga(m)}else"xsl"==y&&(e=m=ga(m));k[m]=q}a&&(k[m="css"]=a);b[2]&&(k[m="parms"]=b[2]);b[3]&&(k[m="state"]=b[3]);d&&e?(a=JSON.stringify(k),g+=".js",c=c[1]+"var resources="+a+";"+c[2]+c[3],c=c.replace(/\u00A9/g,
 "&#xA9;"),a=Aa(c,"javascript",!1,g),a=a+(', copy it to your web server as "'+g+'", and then add the following to your web page:\n\n')+('<div id="'+f+'"></div>\n')+"...\n",a=a+('<script type="text/javascript" src="'+g+'">\x3c/script>\n')+('<script type="text/javascript">embedPC("'+f+'","'+d+'","'+e+'");\x3c/script>\n\n')+"The machine should appear where the <div> is located.",r(a)):r("Missing XML/XSL resources")}
-window.savePC=function(a,b,c){var d=Ya("Computer",a),e=Ya("Debugger",a);if(d){var f=zn(d,!0),g=d.L?JSON.stringify(d.L):null;b||(b="/versions/pcjs/1.30.0/pc"+(e?"-dbg":"")+".js");if(c&&c({state:f,Gj:g}))return!0;sa(b,null,!0,function(c,d,e){Jn(c,d,e,[a,ga(b,!0),g,f])});return!0}r("Unable to identify machine '"+a+"'");return!1};})();
+window.savePC=function(a,b,c){var d=Ya("Computer",a),e=Ya("Debugger",a);if(d){var f=zn(d,!0),g=d.L?JSON.stringify(d.L):null;b||(b="/versions/pcx86/1.30.0/pcx86"+(e?"-dbg":"")+".js");if(c&&c({state:f,Gj:g}))return!0;sa(b,null,!0,function(c,d,e){Jn(c,d,e,[a,ga(b,!0),g,f])});return!0}r("Unable to identify machine '"+a+"'");return!1};})();
diff --git a/versions/pdpjs/1.30.0/pdp11-dbg.js b/versions/pdpjs/1.30.0/pdp11-dbg.js
index 69a789abe..1e39dabd3 100644
--- a/versions/pdpjs/1.30.0/pdp11-dbg.js
+++ b/versions/pdpjs/1.30.0/pdp11-dbg.js
@@ -1,223 +1,230 @@
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 d.match(/^[01]+$/):d.match(/^[0-9]+$/))&&!isNaN(f=parseInt(a,b))&&(c=f|0)}return c}function ca(a,b,c){var d="";b?11<b&&(b=11):b=a&-65536?11:6;if(null==a||isNaN(a))for(;0<b--;)d="?"+d;else for(;0<b--;)d=String.fromCharCode((a&7)+48)+d,a>>=3;return(c?"0o":"")+d}function p(a,b,c){var d="";b?8<b&&(b=8):b=a&-65536?8:4;if(null==a||isNaN(a))for(;0<b--;)d="?"+d;else for(;0<b--;){var e=a&15,e=e+(0<=e&&9>=e?48:55),d=String.fromCharCode(e)+d;a>>=4}return(c?"0x":"")+d}
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-(d=(d<<8|d>>8)&65535);break;case 4194168:0>b?d=this.g.nd&65535:(d=M(this,this.g.data,a,b,c),0<=d&&(this.g.data=d));break;default:return f.J|=16,f.L(4,126)}break;case 4194048:e=this.C;switch(a&-2){case 4194048:d=M(this,e.Pb,a,b,c);0<=d&&(e.Pb=d);break;case 4194050:d=M(this,e.oa,a,b,c);0<=d&&(e.oa=d);break;case 4194052:d=M(this,e.R,a,b,c);0<=b&&0<=d&&(e.R=d&-36993|e.R&36992,e.R&1&&Sb(this));break;case 4194054:d=M(this,e.Qb,a,b,c);0<=d&&(e.Qb=d);break;case 4194056:d=M(this,e.Ob,a,b,c);0<=d&&(e.Ob=d);
-break;case 4194058:d=M(this,e.va,a,b,c);0<=d&&(e.va=d);break;case 4194060:break;case 4194062:d=M(this,e.Bc,a,b,c);0<=d&&(e.Bc=d);break;default:return f.J|=16,f.L(4,128)}break;case 4193728:var g=this.B;e=g.Da&7;switch(a&-2){case 4193728:d=M(this,g.T,a,b,c);0<=b&&0<=d&&(g.$a=g.$a&60|d>>8&3,g.T=d&17279|g.T&34944|2048,d&1&&g.T&128?Wb(this,e):192==(d&192)&&L(f,0,5,172));break;case 4193730:d=M(this,g.xb,a,b,c);0<=d&&(g.xb=d);break;case 4193732:d=M(this,g.vb,a,b,c);0<=d&&(g.vb=d&65534);break;case 4193734:d=
-M(this,g.Ea[e],a,b,c);0<=d&&(g.Ea[e]=d&7967);break;case 4193736:d=M(this,g.Da,a,b,c);0<=d&&(g.Da=d&63|g.Da&65472,d&128&&Vb(this));break;case 4193738:d=g.ta[e];break;case 4193740:d=g.wb[e];break;case 4193742:d=M(this,g.mb,a,b,c);0<=d&&(g.mb=d&255);break;case 4193744:d=g.kd[e];break;case 4193746:d=M(this,g.Cc,a,b,c);0<=d&&(g.Cc=d);break;case 4193748:d=M(this,g.Dc[e],a,b,c);0<=d&&(g.Dc[e]=d&1023);break;case 4193750:d=8210;break;case 4193752:d=g.ld[e];break;case 4193754:d=M(this,g.Ec[e],a,b,c);0<=d&&
-(g.Ec[e]=d);break;case 4193756:d=M(this,g.Pa[e],a,b,c);0<=d&&(g.Pa[e]=d&511);break;case 4193758:g.bc[e]=g.Pa[e];d=g.bc[e];break;case 4193760:d=g.hd[e];break;case 4193762:d=g.jd[e];break;case 4193764:d=g.fd[e];break;case 4193766:d=g.gd[e];break;case 4193768:d=M(this,g.$a,a,b,c);0<=d&&(g.$a=d&63,g.T=g.T&-769|(d&3)<<8);break;case 4193770:d=M(this,g.mc,a,b,c);0<=d&&(g.mc=d);break;default:return f.J|=16,f.L(4,132)}break;case 4192512:e=this.w;switch(a&-2){case 4192512:d=M(this,e.M,a,b,c);0<=b&&0<=d&&(e.Ra=
-e.Ra&60|d>>4&3,e.M=e.M&-1023|d&1022,e.M&128||Ub(this));break;case 4192514:d=M(this,e.Gb,a,b,c);0<=d&&(e.Gb=d&65534);break;case 4192516:d=M(this,e.fa,a,b,c);0<=d&&(e.fa=d);break;case 4192518:d=M(this,e.Wa,a,b,c);0<=d&&(e.Wa=d);break;case 4192520:d=M(this,e.Ra,a,b,c);0<=d&&(e.Ra=d&63,e.M=e.M&-49|(e.Ra&3)<<4);break;default:return f.J|=16,f.L(4,134)}break;case 4191552:switch(a&-2){case 4191566:0>b?d=f.lb:(d=M(this,f.lb,a,b,c),0<=d&&(70!==f.ib&&(d&=-49),f.lb=d,f.Zb[0]=d&4?15:7,f.Zb[1]=d&2?15:7,f.Zb[3]=
+0,3024,3103,65514,34562,0,264,8197,33779,5003,2574,32337,260,0,258,5579,12,6080,448,6081,450,6084,452,116,2,6084,65400,17860,65024,21956,62976,38848,65401,3200,161,76,0,16944,10797];k=K.prototype;k.Oa=function(a,b,c,d){this.H=b;this.b=c;this.j=d;var e=this;this.f.pc=Pb(this.b,function(){e.f.Va|=128;e.f.Va&64&&(L(e.b,0,6,64),Qb(e.b,e.f.pc,1E3/60))});Mb(b,this,Rb);Nb(b,this.reset.bind(this),this.Kc.bind(this));G(this)};k.Xc=function(){var a=this.f.Va;this.f.Va&=-129;return a};
+k.pd=function(a){this.f.Va=a;a&64&&Qb(this.b,this.f.pc,1E3/60);this.f.Va=a&-129};k.Yc=function(){var a=this.b;return a.F&62337|a.wa<<5|a.xa<<1};k.qd=function(a){var b=4,c=this.b;c.F=a&=62337;c.wa=a>>5&3;c.xa=a>>1&15;c.Yb=a&257?a&1?6:4:0;Sb(c);a=c.F;a&1|256&&(b=this.b.lb&16?1:2);this.g.rb=this.g.rb&-8|b};k.Zc=function(){return Tb(this.b)};k.rd=function(a){Ub(this.b,a&-1809|Tb(this.b)&1808);this.b.D|=128};
+function Vb(a){var b=a.C,c,d,e,f=b.va>>13&7;"undefined"===typeof b.ra[f]&&(b.ra[f]={cache:[],postProcess:a.dd,drive:f,blocksize:256,mapped:0,maxblock:b.cb[f]*b.da[f],url:"rk"+f+".dsk"});b.R&=-129;switch(b.R>>1&7){case 0:b.Pb=2496;b.oa=0;b.R=128;b.va=0;break;case 1:if((b.va>>4&511)>=b.cb[f]){b.oa|=32832;b.R|=49152;break}if((b.va&15)>=b.da[f]){b.oa|=32800;b.R|=49152;break}c=(b.va>>4&511)*b.da[f]+(b.va&15);d=(b.R&48)<<12|b.Ob;e=65536-b.Qb&65535;Wb(a,b.ra[f],c,d,e);return;case 2:if((b.va>>4&511)>=b.cb[f])b.oa|=
+32832,b.R|=49152;else if((b.va&15)>=b.da[f])b.oa|=32800,b.R|=49152;else{c=(b.va>>4&511)*b.da[f]+(b.va&15);d=(b.R&48)<<12|b.Ob;e=65536-b.Qb&65535;a.$b(b.ra[f],c,d,e);return}}b.Pb=f<<13|b.Pb&8176|b.va%9&15;L(a.b,20,5,144,function(){b.R=b.R&65534|128;return!!(b.R&64)})}k.dd=function(a,b,c,d,e){var f=this.C;f.Ob=d&65535;f.R=f.R&-49|d>>12&48;f.Qb=65536-e&65535;switch(a){case 1:f.oa|=33024;f.R|=49152;break;case 2:f.oa|=33792,f.R|=49152}L(this.b,20,5,144,function(){f.R=f.R&65534|128;return!!(f.R&64)})};
+function Xb(a){var b=a.w,c,d,e,f=b.M>>8&3;b.M&=-2;"undefined"===typeof b.ra[f]&&(b.ra[f]={cache:[],postProcess:a.ed,drive:f,blocksize:128,mapped:1,maxblock:b.cb[f]*b.da[f],url:"rl"+f+".dsk"});switch(b.M>>1&7){case 2:b.Wa&8&&(b.M&=63);b.Wa=b.Lc[f]|b.ab&64;break;case 3:1==(b.fa&3)&&(b.ab=b.fa&4?b.ab+(b.fa&65408)&65408|b.fa<<2&64:b.ab-(b.fa&65408)&65408|b.fa<<2&64,b.fa=b.ab);break;case 4:b.Wa=b.ab;break;case 5:if(b.fa>>6>=b.cb[f]){b.M|=37888;break}if((b.fa&63)>=b.da[f]){b.M|=37888;break}c=(b.fa>>6)*
+b.da[f]+(b.fa&63);d=(b.Sa&63)<<16|b.Gb;e=65536-b.Wa&65535;Wb(a,b.ra[f],c,d,e);return;case 6:if(b.fa>>6>=b.cb[f])b.M|=37888;else if((b.fa&63)>=b.da[f])b.M|=37888;else{c=(b.fa>>6)*b.da[f]+(b.fa&63);d=(b.Sa&63)<<16|b.Gb;e=65536-b.Wa&65535;a.$b(b.ra[f],c,d,e);return}}L(a.b,20,5,112,function(){b.M|=129;return!!(b.M&64)})}
+k.ed=function(a,b,c,d,e){var f=this.w;f.Gb=d&65535;f.M=f.M&-49|d>>12&48;f.Sa=d>>16&63;f.fa=~~(c/f.da[b.Ma])<<6|c%f.da[b.Ma];f.ab=f.fa;f.Wa=65536-e&65535;switch(a){case 1:f.M|=33792;break;case 2:f.M|=40960}L(this.b,20,5,112,function(){f.M|=129;return!!(f.M&64)})};function Yb(a){a=a.B;a.T=2176;a.Da=0;a.ta=[4544,4544,4544,4544,4544,4544,4544,4544];a.wb=[0,0,0,0,0,0,0,0];a.mb=a.xb=a.vb=a.$a=a.nc=0}
+function gc(a,b){var c=a.B,d,e,f;c.T&=-16513;c.Da&=-2049;c.ta[b]&=-1153;L(a.b,-1,0,172);"undefined"===typeof c.ra[b]&&(c.ra[b]={cache:[],postProcess:a.fd,drive:b,blocksize:256,mapped:0,maxblock:c.cc[0]*c.bb[0]*c.da[0],url:"rp"+b+".dsk"});switch(c.T&63){case 5:c.bc[b]=c.Qa[b];c.T|=32896;c.ta[b]|=32896;c.mb|=1<<b;break;case 9:Yb(a);break;case 19:c.ta[b]|=64;break;case 49:if(c.Qa[b]>=c.cc[0]||c.Ea[b]>>8>=c.bb[0]||(c.Ea[b]&255)>=c.da[0]){c.wb[b]|=1024;c.T|=49152;break}d=(c.Qa[b]*c.bb[0]+(c.Ea[b]>>8))*
+c.da[0]+(c.Ea[b]&255);e=(c.$a&63)<<16|c.vb;f=65536-c.xb&65535;Wb(a,c.ra[b],d,e,f);return;case 57:if(c.Qa[b]>=c.cc[0]||c.Ea[b]>>8>=c.bb[0]||(c.Ea[b]&255)>=c.da[0])c.wb[b]|=1024,c.T|=49152;else{d=(c.Qa[b]*c.bb[0]+(c.Ea[b]>>8))*c.da[0]+(c.Ea[b]&255);e=(c.$a&63)<<16|c.vb;f=65536-c.xb&65535;a.$b(c.ra[b],d,e,f);return}}L(a.b,3,5,172,function(){c.T=c.T&65534|128;c.ta[b]|=128;return!!(c.T&64)})}
+k.fd=function(a,b,c,d,e){var f=this.B;f.xb=65536-e&65535;f.vb=d&65535;f.T=f.T&-769|d>>8&768;f.$a=d>>16&63;e=~~(c/f.da[0]);d=~~(e/f.bb[0]);f.Ea[b.Ma]=e%f.bb[0]<<8|c%f.da[0];f.bc[b.Ma]=f.Qa[b.Ma]=d;f.mb|=1<<b.Ma;c>=b.Vc-1&&(f.ta[b.Ma]|=1024);switch(a){case 1:f.Da|=512;f.T|=49152;break;case 2:f.Da|=2048,f.T|=49152}L(this.b,20,5,172,function(){f.ta[b.Ma]|=128;f.T=f.T&65534|128;return!!(f.T&64)})};
+function hc(a,b,c,d,e,f){var g=~~((f+c.Ta-1)/c.Ta),h=new XMLHttpRequest;2048>g&&d+2048<c.Vc&&(g=2048);h.open("GET",c.url,!0);h.setRequestHeader("Range","bytes="+(d*c.Ta<<1)+"-"+(((d+g)*c.Ta<<1)-1));h.responseType="arraybuffer";h.onreadystatechange=function(){if(4==h.readyState){var g=b.bind(a),m,n,r,q;m=h.response;if(h.status&&206!=h.status||!m)c.jc(1,c,d,e,f);else{m=new Uint8Array(m);n=d;for(q=0;q<m.length;){if("undefined"===typeof c.cache[n])for(c.cache[n]=[],r=0;r<c.Ta;r++)c.cache[n][r]=q<m.length?
+m[q]&255|m[q+1]<<8&65280:0,q+=2;else q+=c.Ta<<1;n++}g(c,d,e,f)}}};h.send(null)}function M(a,b,c,d,e){c&1?e?d=0<=d?d<<8&65280|b&255:b:a.b.L(4,122):0<=d?e&&(d=b&65280|d&255):d=b;return d}k.$b=function(a,b,c,d){for(var e;0<d;){if("undefined"===typeof a.cache[b]){hc(this,this.$b,a,b,c,d);return}for(e=0;e<a.Ta&&0<d;e++){var f=a.Uc?ic(this.b,c):c;this.b.H.nb(f,a.cache[b][e]&65535);c+=2;--d}b++}a.jc(0,a,b,c,d)};
+function Wb(a,b,c,d,e){for(var f,g;0<e;){if("undefined"===typeof b.cache[c])for(b.cache[c]=[],f=0;f<b.Ta;f++)b.cache[c][f]=0;for(f=0;f<b.Ta&&0<e;f++){g=jc(a.b,b.Uc?ic(a.b,d):d);if(0>g){b.jc(2,b,c,d,e);return}b.cache[c][f]=g;d+=2;--e}c++}b.jc(0,b,c,d,e)}k.reset=function(){this.g.rb=this.g.rb&-120|20;this.f.Va=0;this.C.R=128;this.w.M=128;Yb(this)};
+k.Kc=function(a,b,c){var d,e,f=this.b;switch(a&-64){case 4194240:switch(a&-2){case 4194300:0>b?d=f.Za&65280:(a&1&&(b<<=8),f.Za=b|255,d=0);break;case 4194298:if(0>b)d=f.mc;else{a&1&&(b<<=8);if(d=b&65024){e=d>>9;do d+=34;while(e>>=1)}f.mc=d;f.D|=2}break;case 4194294:if(70!==f.ib)return f.L(4,222);0>b?d=f.J:d=f.J=0;break;case 4194292:if(70!==f.ib)return f.L(4,224);d=1;break;case 4194290:if(70!==f.ib)return f.L(4,226);d=0;break;case 4194288:if(70!==f.ib)return f.L(4,228);d=61183;break;case 4194296:0<=
+b&&!(a&1)&&(b&=255);case 4194286:case 4194284:case 4194282:case 4194280:case 4194278:case 4194276:case 4194274:case 4194272:if(70!==f.ib)return f.L(4,232);e=a-4194272>>1;0>b?d=f.hc[e]:(d=M(this,f.hc[e],a,b,c),0<=d&&(f.hc[e]=d));break;case 4194254:return a&1?f.P>>14&1?(0<=b&&(f.u[6]=b),d=f.u[6]):(0<=b&&(f.ya[3]=b),d=f.ya[3]):f.P>>14&0?(0<=b&&(f.u[6]=b),d=f.u[6]):(0<=b&&(f.ya[1]=b),d=f.ya[1]),d;case 4194252:case 4194250:case 4194248:return e=a&7,f.P&2048?(0<=b&&(f.u[e]=b),d=f.u[e]):(0<=b&&(f.Pa[e]=
+b),d=f.Pa[e]),d;case 4194246:return a&1?(0<=b&&(f.u[7]=b),d=f.u[7]):f.P>>14&0?(0<=b&&(f.u[6]=b),d=f.u[6]):(0<=b&&(f.ya[0]=b),d=f.ya[0]),d;case 4194244:case 4194242:case 4194240:return e=a&7,f.P&2048?(0<=b&&(f.Pa[e]=b),d=f.Pa[e]):(0<=b&&(f.u[e]=b),d=f.u[e]),d;default:return f.J|=16,f.L(4,124)}break;case 4194176:e=a>>1&31;d=M(this,f.na[3][e],a,b,c);0<=d&&(f.na[3][e]=d,f.na[3][e&15]&=65295);break;case 4194112:switch(a&-2){case 4194174:d=M(this,f.ac,a,b,c);0<=d&&(f.ac=d);break;case 4194172:d=f.Ya;d&65280&&
+(d=(d<<8|d>>8)&65535);break;case 4194168:0>b?d=this.g.od&65535:(d=M(this,this.g.data,a,b,c),0<=d&&(this.g.data=d));break;default:return f.J|=16,f.L(4,126)}break;case 4194048:e=this.C;switch(a&-2){case 4194048:d=M(this,e.Pb,a,b,c);0<=d&&(e.Pb=d);break;case 4194050:d=M(this,e.oa,a,b,c);0<=d&&(e.oa=d);break;case 4194052:d=M(this,e.R,a,b,c);0<=b&&0<=d&&(e.R=d&-36993|e.R&36992,e.R&1&&Vb(this));break;case 4194054:d=M(this,e.Qb,a,b,c);0<=d&&(e.Qb=d);break;case 4194056:d=M(this,e.Ob,a,b,c);0<=d&&(e.Ob=d);
+break;case 4194058:d=M(this,e.va,a,b,c);0<=d&&(e.va=d);break;case 4194060:break;case 4194062:d=M(this,e.Cc,a,b,c);0<=d&&(e.Cc=d);break;default:return f.J|=16,f.L(4,128)}break;case 4193728:var g=this.B;e=g.Da&7;switch(a&-2){case 4193728:d=M(this,g.T,a,b,c);0<=b&&0<=d&&(g.$a=g.$a&60|d>>8&3,g.T=d&17279|g.T&34944|2048,d&1&&g.T&128?gc(this,e):192==(d&192)&&L(f,0,5,172));break;case 4193730:d=M(this,g.xb,a,b,c);0<=d&&(g.xb=d);break;case 4193732:d=M(this,g.vb,a,b,c);0<=d&&(g.vb=d&65534);break;case 4193734:d=
+M(this,g.Ea[e],a,b,c);0<=d&&(g.Ea[e]=d&7967);break;case 4193736:d=M(this,g.Da,a,b,c);0<=d&&(g.Da=d&63|g.Da&65472,d&128&&Yb(this));break;case 4193738:d=g.ta[e];break;case 4193740:d=g.wb[e];break;case 4193742:d=M(this,g.mb,a,b,c);0<=d&&(g.mb=d&255);break;case 4193744:d=g.ld[e];break;case 4193746:d=M(this,g.Dc,a,b,c);0<=d&&(g.Dc=d);break;case 4193748:d=M(this,g.Ec[e],a,b,c);0<=d&&(g.Ec[e]=d&1023);break;case 4193750:d=8210;break;case 4193752:d=g.md[e];break;case 4193754:d=M(this,g.Fc[e],a,b,c);0<=d&&
+(g.Fc[e]=d);break;case 4193756:d=M(this,g.Qa[e],a,b,c);0<=d&&(g.Qa[e]=d&511);break;case 4193758:g.bc[e]=g.Qa[e];d=g.bc[e];break;case 4193760:d=g.jd[e];break;case 4193762:d=g.kd[e];break;case 4193764:d=g.gd[e];break;case 4193766:d=g.hd[e];break;case 4193768:d=M(this,g.$a,a,b,c);0<=d&&(g.$a=d&63,g.T=g.T&-769|(d&3)<<8);break;case 4193770:d=M(this,g.nc,a,b,c);0<=d&&(g.nc=d);break;default:return f.J|=16,f.L(4,132)}break;case 4192512:e=this.w;switch(a&-2){case 4192512:d=M(this,e.M,a,b,c);0<=b&&0<=d&&(e.Sa=
+e.Sa&60|d>>4&3,e.M=e.M&-1023|d&1022,e.M&128||Xb(this));break;case 4192514:d=M(this,e.Gb,a,b,c);0<=d&&(e.Gb=d&65534);break;case 4192516:d=M(this,e.fa,a,b,c);0<=d&&(e.fa=d);break;case 4192518:d=M(this,e.Wa,a,b,c);0<=d&&(e.Wa=d);break;case 4192520:d=M(this,e.Sa,a,b,c);0<=d&&(e.Sa=d&63,e.M=e.M&-49|(e.Sa&3)<<4);break;default:return f.J|=16,f.L(4,134)}break;case 4191552:switch(a&-2){case 4191566:0>b?d=f.lb:(d=M(this,f.lb,a,b,c),0<=d&&(70!==f.ib&&(d&=-49),f.lb=d,f.Zb[0]=d&4?15:7,f.Zb[1]=d&2?15:7,f.Zb[3]=
 d&1?15:7,f.Yb&&(e=2,f.lb&16&&(e=1),this.g.rb=this.g.rb&-8|e)));break;default:return f.J|=16,f.L(4,136)}break;case 4191424:e=a>>1&31;d=M(this,f.na[0][e],a,b,c);0<=d&&(f.na[0][e]=d,f.na[0][e&15]&=65295);break;case 4191360:e=a>>1&31;d=M(this,f.na[1][e],a,b,c);0<=d&&(f.na[1][e]=d,f.na[1][e&15]&=65295);break;case 4190400:case 4190336:if(70!==f.ib)return f.L(4,234);e=a>>2&31;d=f.Sb[e];a&2&&(d>>=16);d&=65535;0<=b&&(d=M(this,d,a,b,c),0<=d&&(f.Sb[e]=a&2?d<<16|f.Sb[e]&65535:f.Sb[e]&4294901760|d&65534));break;
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+a.i("target speed: "+(a.b.kb.toFixed(2)+"Mhz")+" ("+a.b.Xa+"x)");break;default:if(g[1]){a.i("unknown option: "+g[1]);break}case "?":a.i("debugger options:"),a.i("\tbase #\t\tset default base to #"),a.i("\tcs int #\tset checksum cycle interval to #"),a.i("\tcs start #\tset checksum cycle start count to #"),a.i("\tcs stop #\tset checksum cycle stop count to #"),a.i("\tsp #\t\tset speed multiplier to #")}break;case "t":dg(a,g[0],g[1]);break;case "u":Pf(a,g[1],g[2],8);break;case "v":if("var"==g[0]){ag(a,
+b.substr(3))||(d=!1);break}if("ver"==g[0]){a.i("PDPjs version 1.30.0 ("+a.b.Wc+",RELEASE"+(xb?",TYPEDARRAYS":",LONGARRAYS")+")");a.i(window?window.navigator.userAgent:"");break}f=!0;break;case "?":if(g[1]){cg(a,b.substr(1));break}var dd="commands:",ed;for(ed in Df)dd+="\n"+na(ed,9)+Df[ed];Jd(a)||(dd+="\nnote: history disabled if no exec breakpoints");a.i(dd);break;default:f=!0}f&&(a.i("unknown command: "+b),d=!1)}}catch(Oe){a.i("debugger error: "+(Oe.stack||Oe.message)),d=!1}return d}
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+function fg(a,b,c){w.call(this,"Computer",a,fg,67108864);this.v.ia=!1;gg(this,b);this.S=Dc(this,"autoPower",a);this.C=0;this.ea=a.busWidth||a.buswidth;this.f=hg;this.I=null;this.F=this.Z=!1;this.url=Dc(this,"url")||"";(Math.random()+.1).toString(36);this.g=ig(this);if(this.b=eb("CPU",this.id)){this.j=eb("Debugger",this.id);this.H=new Ab({id:this.dc+".bus",busWidth:this.ea},this.b,this.j);var d,e=cb(this.id);if((this.w=eb("Panel",this.id))&&this.w.hb)for(b=0;b<e.length;b++)d=e[b],d.sa=this.w.sa,d.i=
+this.w.i,d.hb=this.w.hb;this.i("PDPjs v1.30.0\nCopyright \u00a9 2012-2016 Jeff Parsons <Jeff@pcjs.org>\nLicense: GPL version 3 or later <http://gnu.org/licenses/gpl.html>");this.i("Portions adapted from the PDP-11/70 Emulator v1.3 by Paul Nankervis <paulnank@hotmail.com>");for(b=0;b<e.length;b++)d=e[b],d.Oa&&d.Oa(this,this.H,this.b,this.j);b=null;d=a.resume;void 0!==d&&(1<d.length?b=this.G=d:this.f=parseInt(d,10));var f;if(a=Dc(this,"state")||(f=!0,a.state))b=this.U=a,f||(this.F=!0,this.f=hg),this.f&&
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+function mg(a,b){var c=new O(a,"1.30.0","validate");if(jg(c)&&ng(c)){var d=c.get("timestamp"),e=b?b.get("timestamp"):"unknown";d!=e&&(a.sa("Machine state may be out-of-date\n("+d+" vs. "+e+")\nCheck your browser's local storage limits"),b||c.clear())}}k=fg.prototype;
+k.Mb=function(a){void 0===a&&(a=this.f||(this.I?1:hg));if(!this.C){this.C++;var b=!1,c=!1;this.Y=!1;var d=this.N||new O(this,"1.30.0");if(-1==a)b=!0;else if(a>hg){if(jg(d,this.I)){this.B=new O(this,"1.30.0","failsafe");jg(this.B)&&(og(this,d),a=2,pg(this.B));this.B.set("timestamp",sa());qg(this.B);var e=this.f&&!this.F;if(1==a||va("Click OK to restore the previous PDPjs machine state, or CANCEL to reset the machine.")){if(c=ng(d)){var f=d.get("code"),g=d.get("data");f&&("ok"==f?jg(d,g):("error"==
+f&&"no machine state"!=g?(this.sa("Error: "+g),"unable to verify user"==g&&(Ca("user",""),this.g=null)):this.i(f+": "+g),pg(d),jg(d)?(c=ng(d),e=!0):c=!1))}e&&mg(this,c?d:null)}else 2==a&&d.clear()}else mg(this);delete this.I;delete this.N}e=cb(this.id);for(f=0;f<e.length;f++)g=e[f],g!==this&&g!=this.b&&(c=rg(this,g,d,b,c));b=[d,a,c];-1!=a?lg(this,this.vc,b):this.vc(b)}};
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+function og(a,b){if(va("There may be a problem with your PDPjs machine.\n\nTo help us diagnose it, click OK to send this PDPjs machine state to http://www.pcjs.org.")){var c=a.g||"";b=b.toString();var d={app:"PDPjs",ver:"1.30.0"};d.url=a.url;d.user=c;d.type="bug";d.data=b;ua("http://www.pcjs.org/api/v1/report",d,!0)}}
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+c,c.onclick=function(){var a=ig(d,!0);if(a){var b=!!(d.f&&!d.G||d.U),c=eg(d,b);b?sg(d,a,c):d.sa("Resume disabled, machine state not saved")}},!0}return!1};
+function ig(a,b){var c=a.g;c||((c=Ba("user"),void 0!==c)?!c&&b&&(b=null,window&&(b=window.prompt("Saving machine states on the pcjs.org server is currently unsupported.\n\nIf you're running your own server, enter your user ID below.","")),c=b)&&((c=tg(a,c))||a.sa("The user ID is invalid.")):b&&a.sa("Browser local storage is not available"));return c}
+function tg(a,b){a.g=null;b=ua(ga()+"/api/v1/user?req=verify&user="+b);var c=b[1];if(!b[0]&&c)try{b=eval("("+c+")"),b.code&&"ok"==b.code&&(Ca("user",b.data),a.g=b.data)}catch(d){t(d.message+" ("+c+")")}return a.g}function kg(a){var b=null;a.g&&(b=ga()+"/api/v1/user?req=load&user="+a.g+"&state="+ug(a,"1.30.0"));return b}
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+k.Fa=function(a){this.b&&this.b.Fa(a);this.w&&this.w.Fa(a)};La(function(){for(var a=D(document,"pdp11-machine"),b=0;b<a.length;b++)for(var c=a[b],d=B(c),c=D(c,"pdp11","computer"),e=0;e<c.length;e++){var f=c[e],g=B(f),g=new fg(g,d,!0);fb(g,f);g.S&&lg(g,g.Mb)}});Ga.show.push(function(){for(var a=D(document,"pdp11","computer"),b=0;b<a.length;b++){var c=B(a[b]);(c=eb("Computer",c.id))&&c.ha&&!c.v.ia&&c.Mb(-1)}});
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