From 95a515822519b3297c240942ef5a5454cfd38eb5 Mon Sep 17 00:00:00 2001
From: Jeff Parsons <Jeff@pcjs.org>
Date: Fri, 19 Aug 2016 16:15:21 -0700
Subject: [PATCH] Merge one change from next-release: enabling smooth scrolling
 by default

---
 docs/pcx86/examples/pcx86-dbg.js     |   2 +-
 docs/pcx86/examples/pcx86.js         |   2 +-
 modules/pc8080/lib/chipset.js        |  62 ++++-
 modules/pc8080/lib/computer.js       |   3 -
 modules/pc8080/lib/cpustate.js       |   1 +
 modules/pc8080/lib/debugger.js       |  61 +----
 modules/pc8080/lib/keyboard.js       |   1 +
 modules/pc8080/lib/messages.js       |  43 ++++
 modules/pc8080/lib/panel.js          |   1 +
 modules/pc8080/lib/ram.js            |   1 +
 modules/pc8080/lib/rom.js            |   1 +
 modules/pc8080/lib/serialport.js     |   1 +
 modules/pc8080/lib/video.js          |  11 +
 versions/pc8080/1.24.0/pc8080-dbg.js | 335 ++++++++++++++-------------
 versions/pc8080/1.24.0/pc8080.js     |   2 +-
 versions/pcx86/1.24.0/pcx86-dbg.js   |   2 +-
 versions/pcx86/1.24.0/pcx86.js       |   2 +-
 17 files changed, 299 insertions(+), 232 deletions(-)

diff --git a/docs/pcx86/examples/pcx86-dbg.js b/docs/pcx86/examples/pcx86-dbg.js
index 8a7e82fa6..447696fb1 100644
--- a/docs/pcx86/examples/pcx86-dbg.js
+++ b/docs/pcx86/examples/pcx86-dbg.js
@@ -816,4 +816,4 @@ a):f("transformToFragment failed")):f("unable to transform XML: unsupported brow
 function us(a,b,c,d){if(!c&&b){d.push(b);a=gb[d[0]];b=null;for(var e in a)if(ha(e,"components.xsl")){b=e.replace(".xsl",".css");break}b?xa(b,null,!0,function(a,b){vs(b,d)}):vs(null,d)}else w("Error ("+c+") requesting "+a)}
 function vs(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=gb[f],k={},l;for(l in h){var n=h[l],q=ga(l);if("xml"==q){for(q=/[ \t]*<disk [^>]*path=(['"])(.*?)\1.*?<\/disk>\n?/g;d=q.exec(h[l]);){var p=d[2];p&&(h[p]||(n=n.replace(d[0],"")))}d=l=fa(l)}else"xsl"==q&&(e=l=fa(l));k[l]=n}a&&(k[l="css"]=a);b[2]&&(k[l="parms"]=b[2]);b[3]&&(k[l="state"]=b[3]);d&&e?(l=JSON.stringify(k),g+=".js",c=c[1]+"var resources="+l+";"+c[2]+c[3],c=c.replace(/\u00A9/g,
 "&#xA9;"),c=Ja(c,"javascript",!1,g),c=c+(', copy it to your web server as "'+g+'", and then add the following to your web page:\n\n')+('<div id="'+f+'"></div>\n'),c+="...\n",c+='<script type="text/javascript" src="'+g+'">\x3c/script>\n',c+='<script type="text/javascript">embedPC("'+f+'","'+d+'","'+e+'");\x3c/script>\n\n',c+="The machine should appear where the <div> is located.",w(c)):w("Missing XML/XSL resources")}
-window.savePC=function(a,b,c){var d=kb("Computer",a),e=kb("Debugger",a);if(d){var f=Nr(d,!0),g=d.U?JSON.stringify(d.U):null;b||(b="/versions/pcjs/1.24.0/pc"+(e?"-dbg":"")+".js");if(c&&c({state:f,jk:g}))return!0;xa(b,null,!0,function(c,d,e){us(c,d,e,[a,fa(b,!0),g,f])});return!0}w("Unable to identify machine '"+a+"'");return!1};})();
+window.savePC=function(a,b,c){var d=kb("Computer",a),e=kb("Debugger",a);if(d){var f=Nr(d,!0),g=d.U?JSON.stringify(d.U):null;b||(b="/versions/pcx86/1.24.0/pcx86"+(e?"-dbg":"")+".js");if(c&&c({state:f,jk:g}))return!0;xa(b,null,!0,function(c,d,e){us(c,d,e,[a,fa(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 c7c35d5e0..20f1bd7fe 100644
--- a/docs/pcx86/examples/pcx86.js
+++ b/docs/pcx86/examples/pcx86.js
@@ -636,4 +636,4 @@ a):f("transformToFragment failed")):f("unable to transform XML: unsupported brow
 function In(a,b,c,d){if(!c&&b){d.push(b);a=Ua[d[0]];b=null;for(var e in a)if(ha(e,"components.xsl")){b=e.replace(".xsl",".css");break}b?ra(b,null,!0,function(a,b){Jn(b,d)}):Jn(null,d)}else p("Error ("+c+") requesting "+a)}
 function Jn(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 n=h[m],x=ga(m);if("xml"==x){for(x=/[ \t]*<disk [^>]*path=(['"])(.*?)\1.*?<\/disk>\n?/g;d=x.exec(h[m]);){var r=d[2];r&&(h[r]||(n=n.replace(d[0],"")))}d=m=fa(m)}else"xsl"==x&&(e=m=fa(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?(m=JSON.stringify(k),g+=".js",c=c[1]+"var resources="+m+";"+c[2]+c[3],c=c.replace(/\u00A9/g,
 "&#xA9;"),c=Ba(c,"javascript",!1,g),c=c+(', copy it to your web server as "'+g+'", and then add the following to your web page:\n\n')+('<div id="'+f+'"></div>\n'),c+="...\n",c+='<script type="text/javascript" src="'+g+'">\x3c/script>\n',c+='<script type="text/javascript">embedPC("'+f+'","'+d+'","'+e+'");\x3c/script>\n\n',c+="The machine should appear where the <div> is located.",p(c)):p("Missing XML/XSL resources")}
-window.savePC=function(a,b,c){var d=Ya("Computer",a),e=Ya("Debugger",a);if(d){var f=yn(d,!0),g=d.L?JSON.stringify(d.L):null;b||(b="/versions/pcjs/1.24.0/pc"+(e?"-dbg":"")+".js");if(c&&c({state:f,ij:g}))return!0;ra(b,null,!0,function(c,d,e){In(c,d,e,[a,fa(b,!0),g,f])});return!0}p("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=yn(d,!0),g=d.L?JSON.stringify(d.L):null;b||(b="/versions/pcx86/1.24.0/pcx86"+(e?"-dbg":"")+".js");if(c&&c({state:f,ij:g}))return!0;ra(b,null,!0,function(c,d,e){In(c,d,e,[a,fa(b,!0),g,f])});return!0}p("Unable to identify machine '"+a+"'");return!1};})();
diff --git a/modules/pc8080/lib/chipset.js b/modules/pc8080/lib/chipset.js
index 0e7cfd8b7..5434f990d 100644
--- a/modules/pc8080/lib/chipset.js
+++ b/modules/pc8080/lib/chipset.js
@@ -37,6 +37,7 @@ if (NODE) {
     var web         = require("../../shared/lib/weblib");
     var Component   = require("../../shared/lib/component");
     var State       = require("../../shared/lib/state");
+    var PC8080      = require("./defines");
     var CPUDef8080  = require("./cpudef");
     var Messages8080= require("./messages");
 }
@@ -428,6 +429,15 @@ ChipSet8080.prototype.initBus = function(cmp, bus, cpu, dbg)
     this.video = /** @type {Video8080} */ (cmp.getMachineComponent("Video"));
     bus.addPortInputTable(this, this.config.portsInput);
     bus.addPortOutputTable(this, this.config.portsOutput);
+
+    if (DEBUGGER) {
+        if (dbg) {
+            var chipset = this;
+            dbg.messageDump(Messages8080.NVR, function onDumpNVR() {
+                chipset.dumpNVR();
+            });
+        }
+    }
 };
 
 /**
@@ -490,12 +500,33 @@ ChipSet8080.VT100.INIT = [
     [
         0, 0, 0, 0,
         [
-            0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80,
-            0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80,
-            0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80,
-            0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e80, 0x2e00,
-            0x2e08, 0x2e8e, 0x2e00, 0x2e50, 0x2e30, 0x2e40, 0x2e20, 0x2e00, 0x2ee0, 0x2ee0,
-            0x2e51, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            /*
+             * The following table contains the data we use to initialize all (100) words of NVR (Non-Volatile RAM).
+             * According the DEC Technical Manual:
+             *
+             *      If the NVR fails, the bell sounds several times to inform the operator, and then default settings
+             *      stored in the ROM allow the terminal to work.
+             *
+             * However, this behavior may be limited to only certain kinds of "failures", because if I deliberately
+             * stuff an invalid value in the table, there is indeed an attempt to beep (though sound isn't working yet),
+             * an error code (2) is displayed in the top-left corner of the screen, but the NVR still appears to contain
+             * all the same (invalid) data we started with.  Perhaps all they meant to say is that the RAM copy of NVR
+             * settings is reset, not the NVR itself.
+             *
+             * Using a VT100 configuration with the Debugger attached, use the NVR dumper command ("d nvr") to see how
+             * other SET-UP changes affect the NVR (after you've saved your changes using SHIFT-S, of course).
+             *
+             * NVR Notes
+             * ---------
+             * After enabling smooth scrolling, the word in row 5, col 4 changes from 2E50 to 2ED0, and the final word
+             * changes from 2E51 to 2E71 (I'm guessing that the final word is an NVR checksum).
+             */
+            0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80,
+            0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80,
+            0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80,
+            0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E80, 0x2E00,
+            0x2E08, 0x2E8E, 0x2E00, 0x2ED0, 0x2E30, 0x2E40, 0x2E20, 0x2E00, 0x2EE0, 0x2EE0,
+            0x2E71, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
             0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
             0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
             0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
@@ -504,6 +535,25 @@ ChipSet8080.VT100.INIT = [
     ]
 ];
 
+/**
+ * dumpNVR()
+ *
+ * @this {ChipSet8080}
+ */
+ChipSet8080.prototype.dumpNVR = function()
+{
+    if (DEBUGGER) {
+        var sDump = "";
+        for (var iWord = 0; iWord < this.aNVRWords.length; iWord++) {
+            if (sDump) {
+                sDump += (iWord && (iWord % 10)? ", " : ",\n");
+            }
+            sDump += str.toHexWord(this.aNVRWords[iWord]);
+        }
+        this.dbg.println(sDump);
+    }
+};
+
 /**
  * reset()
  *
diff --git a/modules/pc8080/lib/computer.js b/modules/pc8080/lib/computer.js
index 9001d8842..b58f6f744 100644
--- a/modules/pc8080/lib/computer.js
+++ b/modules/pc8080/lib/computer.js
@@ -39,9 +39,6 @@ if (NODE) {
     var ReportAPI   = require("../../shared/lib/reportapi");
     var Component   = require("../../shared/lib/component");
     var State       = require("../../shared/lib/state");
-    /*
-     * TODO: I'm confused why WebStorm complains if the following require() is missing in THIS file but not other files.
-     */
     var PC8080      = require("./defines");
     var Bus8080     = require("./bus");
     var Messages8080= require("./messages");
diff --git a/modules/pc8080/lib/cpustate.js b/modules/pc8080/lib/cpustate.js
index fd176a72d..c842fa6c1 100644
--- a/modules/pc8080/lib/cpustate.js
+++ b/modules/pc8080/lib/cpustate.js
@@ -36,6 +36,7 @@ if (NODE) {
     var web         = require("../../shared/lib/weblib");
     var Component   = require("../../shared/lib/component");
     var State       = require("../../shared/lib/state");
+    var PC8080      = require("./defines");
     var CPUDef8080  = require("./cpudef");
     var CPU8080     = require("./cpu");
     var Messages8080= require("./messages");
diff --git a/modules/pc8080/lib/debugger.js b/modules/pc8080/lib/debugger.js
index 43f6b32bb..3eda63db6 100644
--- a/modules/pc8080/lib/debugger.js
+++ b/modules/pc8080/lib/debugger.js
@@ -665,47 +665,6 @@ if (DEBUGGER) {
     /* 0xFF */  [Debugger8080.INS.RST,   Debugger8080.TYPE_INT]
     ];
 
-    /*
-     * Message categories supported by the messageEnabled() function and other assorted message
-     * functions. Each category has a corresponding bit value that can be combined (ie, OR'ed) as
-     * needed.  The Debugger's message command ("m") is used to turn message categories on and off,
-     * like so:
-     *
-     *      m port on
-     *      m port off
-     *      ...
-     *
-     * NOTE: The order of these categories can be rearranged, alphabetized, etc, as desired; just be
-     * aware that changing the bit values could break saved Debugger states (not a huge concern, just
-     * something to be aware of).
-     */
-    Debugger8080.MESSAGES = {
-        "cpu":      Messages8080.CPU,
-        "bus":      Messages8080.BUS,
-        "mem":      Messages8080.MEM,
-        "port":     Messages8080.PORT,
-        "chipset":  Messages8080.CHIPSET,
-        "keyboard": Messages8080.KEYBOARD,  // "kbd" is also allowed as shorthand for "keyboard"; see doMessages()
-        "key":      Messages8080.KEYS,      // using "key" instead of "keys", since the latter is a method on JavasScript objects
-        "video":    Messages8080.VIDEO,
-        "fdc":      Messages8080.FDC,
-        "disk":     Messages8080.DISK,
-        "serial":   Messages8080.SERIAL,
-        "speaker":  Messages8080.SPEAKER,
-        "computer": Messages8080.COMPUTER,
-        "log":      Messages8080.LOG,
-        "warn":     Messages8080.WARN,
-        /*
-         * Now we turn to message actions rather than message types; for example, setting "halt"
-         * on or off doesn't enable "halt" messages, but rather halts the CPU on any message above.
-         *
-         * Similarly, "m buffer on" turns on message buffering, defering the display of all messages
-         * until "m buffer off" is issued.
-         */
-        "buffer":   Messages8080.BUFFER,
-        "halt":     Messages8080.HALT
-    };
-
     Debugger8080.HISTORY_LIMIT = DEBUG? 100000 : 1000;
 
     /**
@@ -1315,9 +1274,9 @@ if (DEBUGGER) {
          */
         var aEnable = this.parseCommand(sEnable.replace("keys","key").replace("kbd","keyboard"), false, '|');
         if (aEnable.length) {
-            for (var m in Debugger8080.MESSAGES) {
+            for (var m in Messages8080.CATEGORIES) {
                 if (usr.indexOf(aEnable, m) >= 0) {
-                    this.bitsMessage |= Debugger8080.MESSAGES[m];
+                    this.bitsMessage |= Messages8080.CATEGORIES[m];
                     this.println(m + " messages enabled");
                 }
             }
@@ -1334,8 +1293,8 @@ if (DEBUGGER) {
      */
     Debugger8080.prototype.messageDump = function(bitMessage, fnDumper)
     {
-        for (var m in Debugger8080.MESSAGES) {
-            if (bitMessage == Debugger8080.MESSAGES[m]) {
+        for (var m in Messages8080.CATEGORIES) {
+            if (bitMessage == Messages8080.CATEGORIES[m]) {
                 this.afnDumpers[m] = fnDumper;
                 return true;
             }
@@ -3504,7 +3463,7 @@ if (DEBUGGER) {
 
         if (sAddr == '?') {
             var sDumpers = "";
-            for (m in Debugger8080.MESSAGES) {
+            for (m in Messages8080.CATEGORIES) {
                 if (this.afnDumpers[m]) {
                     if (sDumpers) sDumpers += ',';
                     sDumpers = sDumpers + m;
@@ -3549,7 +3508,7 @@ if (DEBUGGER) {
         }
 
         if (sCmd == "d") {
-            for (m in Debugger8080.MESSAGES) {
+            for (m in Messages8080.CATEGORIES) {
                 if (asArgs[1] == m) {
                     var fnDumper = this.afnDumpers[m];
                     if (fnDumper) {
@@ -3933,9 +3892,9 @@ if (DEBUGGER) {
                  */
                 if (sCategory == "keys") sCategory = "key";
                 if (sCategory == "kbd") sCategory = "keyboard";
-                for (m in Debugger8080.MESSAGES) {
+                for (m in Messages8080.CATEGORIES) {
                     if (sCategory == m) {
-                        bitsMessage = Debugger8080.MESSAGES[m];
+                        bitsMessage = Messages8080.CATEGORIES[m];
                         fCriteria = !!(this.bitsMessage & bitsMessage);
                         break;
                     }
@@ -3968,9 +3927,9 @@ if (DEBUGGER) {
          */
         var n = 0;
         var sCategories = "";
-        for (m in Debugger8080.MESSAGES) {
+        for (m in Messages8080.CATEGORIES) {
             if (!sCategory || sCategory == m) {
-                var bitMessage = Debugger8080.MESSAGES[m];
+                var bitMessage = Messages8080.CATEGORIES[m];
                 var fEnabled = !!(this.bitsMessage & bitMessage);
                 if (fCriteria !== null && fCriteria != fEnabled) continue;
                 if (sCategories) sCategories += ',';
diff --git a/modules/pc8080/lib/keyboard.js b/modules/pc8080/lib/keyboard.js
index b93e200c7..dd1bab1a7 100644
--- a/modules/pc8080/lib/keyboard.js
+++ b/modules/pc8080/lib/keyboard.js
@@ -35,6 +35,7 @@ if (NODE) {
     var str         = require("../../shared/lib/strlib");
     var web         = require("../../shared/lib/weblib");
     var Component   = require("../../shared/lib/component");
+    var PC8080      = require("./defines");
     var ChipSet8080 = require("./chipset");
     var Messages8080= require("./messages");
 }
diff --git a/modules/pc8080/lib/messages.js b/modules/pc8080/lib/messages.js
index 4130adba5..12db148ee 100644
--- a/modules/pc8080/lib/messages.js
+++ b/modules/pc8080/lib/messages.js
@@ -36,6 +36,7 @@ var Messages8080 = {
     BUS:        0x00000040,
     MEM:        0x00000080,
     PORT:       0x00000100,
+    NVR:        0x00004000,
     CHIPSET:    0x00008000,
     KEYBOARD:   0x00010000,
     KEYS:       0x00020000,
@@ -51,4 +52,46 @@ var Messages8080 = {
     HALT:       0x80000000|0
 };
 
+/*
+ * Message categories supported by the messageEnabled() function and other assorted message
+ * functions. Each category has a corresponding bit value that can be combined (ie, OR'ed) as
+ * needed.  The Debugger's message command ("m") is used to turn message categories on and off,
+ * like so:
+ *
+ *      m port on
+ *      m port off
+ *      ...
+ *
+ * NOTE: The order of these categories can be rearranged, alphabetized, etc, as desired; just be
+ * aware that changing the bit values could break saved Debugger states (not a huge concern, just
+ * something to be aware of).
+ */
+Messages8080.CATEGORIES = {
+    "cpu":      Messages8080.CPU,
+    "bus":      Messages8080.BUS,
+    "mem":      Messages8080.MEM,
+    "port":     Messages8080.PORT,
+    "nvr":      Messages8080.NVR,
+    "chipset":  Messages8080.CHIPSET,
+    "keyboard": Messages8080.KEYBOARD,  // "kbd" is also allowed as shorthand for "keyboard"; see doMessages()
+    "key":      Messages8080.KEYS,      // using "key" instead of "keys", since the latter is a method on JavasScript objects
+    "video":    Messages8080.VIDEO,
+    "fdc":      Messages8080.FDC,
+    "disk":     Messages8080.DISK,
+    "serial":   Messages8080.SERIAL,
+    "speaker":  Messages8080.SPEAKER,
+    "computer": Messages8080.COMPUTER,
+    "log":      Messages8080.LOG,
+    "warn":     Messages8080.WARN,
+    /*
+     * Now we turn to message actions rather than message types; for example, setting "halt"
+     * on or off doesn't enable "halt" messages, but rather halts the CPU on any message above.
+     *
+     * Similarly, "m buffer on" turns on message buffering, deferring the display of all messages
+     * until "m buffer off" is issued.
+     */
+    "buffer":   Messages8080.BUFFER,
+    "halt":     Messages8080.HALT
+};
+
 if (NODE) module.exports = Messages8080;
diff --git a/modules/pc8080/lib/panel.js b/modules/pc8080/lib/panel.js
index d8b07b075..fd780a0df 100644
--- a/modules/pc8080/lib/panel.js
+++ b/modules/pc8080/lib/panel.js
@@ -36,6 +36,7 @@ if (NODE) {
     var usr         = require("../../shared/lib/usrlib");
     var web         = require("../../shared/lib/weblib");
     var Component   = require("../../shared/lib/component");
+    var PC8080      = require("./defines");
     var Bus8080     = require("./bus");
     var CPUDef8080  = require("./cpudef");
     var Memory8080  = require("./memory");
diff --git a/modules/pc8080/lib/ram.js b/modules/pc8080/lib/ram.js
index d1e58321f..37238ffc6 100644
--- a/modules/pc8080/lib/ram.js
+++ b/modules/pc8080/lib/ram.js
@@ -36,6 +36,7 @@ if (NODE) {
     var web         = require("../../shared/lib/weblib");
     var Component   = require("../../shared/lib/component");
     var State       = require("../../shared/lib/state");
+    var PC8080      = require("./defines");
     var Memory8080  = require("./memory");
     var ROM8080     = require("./rom");
 }
diff --git a/modules/pc8080/lib/rom.js b/modules/pc8080/lib/rom.js
index be964552d..b8a6e1ae6 100644
--- a/modules/pc8080/lib/rom.js
+++ b/modules/pc8080/lib/rom.js
@@ -36,6 +36,7 @@ if (NODE) {
     var web         = require("../../shared/lib/weblib");
     var DumpAPI     = require("../../shared/lib/dumpapi");
     var Component   = require("../../shared/lib/component");
+    var PC8080      = require("./defines");
     var CPUDef8080  = require("./cpudef");
     var Memory8080  = require("./memory");
 }
diff --git a/modules/pc8080/lib/serialport.js b/modules/pc8080/lib/serialport.js
index ea055dfd1..a56817772 100644
--- a/modules/pc8080/lib/serialport.js
+++ b/modules/pc8080/lib/serialport.js
@@ -36,6 +36,7 @@ if (NODE) {
     var web         = require("../../shared/lib/weblib");
     var Component   = require("../../shared/lib/component");
     var State       = require("../../shared/lib/state");
+    var PC8080      = require("./defines");
     var Messages8080= require("./messages");
 }
 
diff --git a/modules/pc8080/lib/video.js b/modules/pc8080/lib/video.js
index b2d5132ae..581c9aef5 100644
--- a/modules/pc8080/lib/video.js
+++ b/modules/pc8080/lib/video.js
@@ -37,6 +37,7 @@ if (NODE) {
     var DumpAPI     = require("../../shared/lib/dumpapi");
     var Component   = require("../../shared/lib/component");
     var State       = require("../../shared/lib/state");
+    var PC8080      = require("./defines");
     var ChipSet8080 = require("./chipset");
     var Memory8080  = require("./memory");
     var Messages8080= require("./messages");
@@ -1153,6 +1154,16 @@ Video8080.prototype.updateVT100 = function(fForced)
          * cache entry, to guarantee that it's redrawn on the next update.
          */
         this.assert(iCellUpdated >= 0);
+        /*
+         * TODO: If I change the RECV rate to 19200 and enable smooth scrolling, I sometimes see a spurious
+         * "H" on the bottom line after a long series of "HELLO WORLD!\r\n" tests.  Dumping video memory shows
+         * "HELLO WORLD!" on 23 lines and an "H" on the 24th line, so it's really there.  But strangely, if
+         * I then press SET-UP two times, the restored screen does NOT have the spurious "H".  So somehow the
+         * firmware knows what should and shouldn't be on-screen.
+         *
+         * Possible VT100 firmware bug?  I'm not sure.  Anyway, this DEBUG-only code is here to help trap
+         * that scenario, until I figure it out.
+         */
         if (DEBUG && (this.aCellCache[iCellUpdated] & 0x7f) == 0x48) {
             console.log("spurious character?");
         }
diff --git a/versions/pc8080/1.24.0/pc8080-dbg.js b/versions/pc8080/1.24.0/pc8080-dbg.js
index 949b31f96..8f1184da7 100644
--- a/versions/pc8080/1.24.0/pc8080-dbg.js
+++ b/versions/pc8080/1.24.0/pc8080-dbg.js
@@ -5,7 +5,7 @@ var na={0:"NUL",1:"SOH",2:"STX",3:"ETX",4:"EOT",5:"ENQ",6:"ACK",7:"BEL",8:"BS",9
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-function ta(){return window?window.navigator.userAgent:""}function u(a){window&&window.alert(a)}function va(a){var b=!1;window&&(b=window.confirm(a));return b}var wa=null;function xa(){if(null==wa){var a=!1;if(window)try{window.localStorage.setItem("PCjs.localStorage","PCjs.localStorage"),a="PCjs.localStorage"==window.localStorage.getItem("PCjs.localStorage"),window.localStorage.removeItem("PCjs.localStorage")}catch(b){a=!1}wa=a}return wa}
+function ta(){return window?window.navigator.userAgent:""}function u(a){window&&window.alert(a)}function ua(a){var b=!1;window&&(b=window.confirm(a));return b}var wa=null;function xa(){if(null==wa){var a=!1;if(window)try{window.localStorage.setItem("PCjs.localStorage","PCjs.localStorage"),a="PCjs.localStorage"==window.localStorage.getItem("PCjs.localStorage"),window.localStorage.removeItem("PCjs.localStorage")}catch(b){a=!1}wa=a}return wa}
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+function(){dd(this)||(G(this,O(this)),this.b-=6);this.b-=5},function(){var a=O(this);Rc(this,a&255|this.wa&-256);this.j=a>>8;this.b-=10},function(){var a=M(this);dd(this)||G(this,a);this.b-=10},function(){this.wa&=-513;this.b-=4},function(){var a=M(this);dd(this)||(P(this,this.P),G(this,a),this.b-=6);this.b-=11},function(){P(this,Tc(this)&255|this.j<<8);this.b-=11},function(){this.j=Cd(this,L(this));this.b-=7},function(){P(this,this.P);G(this,48);this.b-=11},function(){dd(this)&&(G(this,O(this)),
+this.b-=6);this.b-=5},function(){this.ka=J(this)&65535;this.b-=5},function(){var a=M(this);dd(this)&&G(this,a);this.b-=10},function(){this.wa|=512;this.b-=4},function(){var a=M(this);dd(this)&&(P(this,this.P),G(this,a),this.b-=6);this.b-=11},Ld,function(){K(this,L(this));this.b-=7},function(){P(this,this.P);G(this,56);this.b-=11}];
+function S(a){w.call(this,"ChipSet",a,S,32768);var b=a.model;b&&!Md[b]&&Oa("Unrecognized ChipSet model: "+b);this.B=Md[b]||{};a.sound&&(this.ga=null,window&&(this.ga=window.AudioContext||window.webkitAudioContext),this.ga&&new this.ga);E(this)}bb(S);
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-Kb:16383}},Ld={SI1978:T,VT100:U};S.prototype.la=function(){return!1};S.prototype.Pa=function(a,b,c,d){this.w=b;this.b=c;this.I=d;this.A=a;this.K=ub(a,"Keyboard");this.Ma=ub(a,"SerialPort");this.video=ub(a,"Video");Gb(b,this,this.B.Rb);Sb(b,this,this.B.Sb)};S.prototype.Da=function(a,b){if(!b)if(!a)this.reset();else if(!this.restore(a))return!1;return!0};S.prototype.Ga=function(a){return a?this.save():!0};T.INIT=[[T.rd.vb,T.Xa.vb,T.sd.vb,0,0,0,0]];
-U.INIT=[[U.Rc.INIT,U.Ia.mc|U.Ia.fd],[U.Va.Wc,U.Va.Xc],[U.Jb.Zc,U.Jb.Vc,U.Jb.Yc,U.Jb.Uc],[0,0,0,0,[11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11776,11784,11918,11776,11856,11824,11840,11808,11776,12E3,12E3,11857,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]]];
-m=S.prototype;m.reset=function(){this.B.INIT&&!this.restore(this.B.INIT)&&this.ia("reset error")};m.save=function(){var a=new H(this);switch(this.B.za){case T.za:I(a,0,[this.Ba,this.J,this.Ca,this.aa,this.fa,this.ta,this.ua]);break;case U.za:I(a,0,[this.ha,this.H]),I(a,1,[this.M,this.O]),I(a,2,[this.F,this.ca,this.qa,this.na]),I(a,3,[this.S,this.u,this.R,this.da,this.L])}return a.data()};
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-m.Nd=function(a,b,c){D(this,a,b,c,"SOUND2",null,!0);this.ua=b};m.Od=function(a,b,c){D(this,a,b,c,"WATCHDOG",null,!0)};function Md(a){var b=0,c=0,d=~a.S;for(a=0;10>a;a++)d&1&&(b=9-a),d>>=1;for(a=0;10>a;a++)d&1&&(c=9-a),d>>=1;return 10*b+c}
-m.Dd=function(a,b){var c=this.H,c=c&~U.Ia.nc;if((Fc(this.b)&64)<<1&&(c|=U.Ia.nc,c!=this.H)){var d,e;d=this.R&1;e=this.R>>1&7;switch(e){case U.Ja.Ua.pd:break;case U.Ja.Ua.Oc:this.S=this.S<<1|d;break;case U.Ja.Ua.Tc:d=Md(this);this.L[d]=U.Ja.Kb;jb(this,"doNVRCommand(): erase data at addr "+t(d));break;case U.Ja.Ua.Pc:this.u=this.u<<1|d;break;case U.Ja.Ua.td:d=Md(this);e=this.u&U.Ja.Kb;this.L[d]=e;jb(this,"doNVRCommand(): write data "+t(e)+" to addr "+t(d));break;case U.Ja.Ua.nd:d=Md(this);e=this.L[d];
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-m.Sd=function(a,b,c){D(this,a,b,c,"NVR.LATCH");this.R=b};m.Rd=function(a,b,c){D(this,a,b,c,"DC012");a=b&3;switch(b>>2&3){case 0:this.F=this.F&-4|a;break;case 1:this.F=this.F&-13|a<<2;this.video&&(b=this.video,a=this.F,jb(b,"updateScrollOffset("+a+")"),b.hb!==a&&((b.hb=a)?Nd(b,-1):b.xb=!0));break;case 2:switch(a){case 0:this.ca=~this.ca;break;case 2:case 3:this.qa=3-a}break;case 3:this.na=a}};
-m.Qd=function(a,b,c){D(this,a,b,c,"DC011");b&U.Va.md?(b&=U.Va.pc,this.O!=b&&(this.O=b,this.video&&(a=this.video,b=this.O==U.Va.pc?50:60,jb(a,"updateRate("+b+")"),a.Yb=b))):(b&=U.Va.ic,this.M!=b&&(this.M=b,this.video&&(a=this.M==U.Va.ic?132:80,b=this.video,jb(b,"updateDimensions("+a+","+(80<a&&this.H&U.Ia.mc?14:24)+")"),b.da=a,b.oa=b.zc,80<a&&b.oa--,Od(b)&&Pd(b))))};T.Rb={0:S.prototype.Ad,1:S.prototype.Bd,2:S.prototype.Cd,3:S.prototype.zd};
+Kb:16383}},Md={SI1978:T,VT100:U};S.prototype.la=function(){return!1};S.prototype.Pa=function(a,b,c,d){this.w=b;this.b=c;this.I=d;this.A=a;this.K=vb(a,"Keyboard");this.Ma=vb(a,"SerialPort");this.video=vb(a,"Video");Hb(b,this,this.B.Rb);Tb(b,this,this.B.Sb);if(d){var e=this;Nd(d,16384,function(){for(var a="",b=0;b<e.F.length;b++)a&&(a+=b&&b%10?", ":",\n"),a+=t(e.F[b]);e.I.g(a)})}};S.prototype.Da=function(a,b){if(!b)if(!a)this.reset();else if(!this.restore(a))return!1;return!0};
+S.prototype.Ga=function(a){return a?this.save():!0};T.INIT=[[T.rd.vb,T.Xa.vb,T.sd.vb,0,0,0,0]];
+U.INIT=[[U.Rc.INIT,U.Ia.mc|U.Ia.fd],[U.Va.Wc,U.Va.Xc],[U.Jb.Zc,U.Jb.Vc,U.Jb.Yc,U.Jb.Uc],[0,0,0,0,[11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11904,11776,11784,11918,11776,11984,11824,11840,11808,11776,12E3,12E3,11889,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]]];
+m=S.prototype;m.reset=function(){this.B.INIT&&!this.restore(this.B.INIT)&&this.ia("reset error")};m.save=function(){var a=new H(this);switch(this.B.za){case T.za:I(a,0,[this.Ba,this.H,this.Ca,this.aa,this.fa,this.ta,this.ua]);break;case U.za:I(a,0,[this.ha,this.L]),I(a,1,[this.M,this.O]),I(a,2,[this.J,this.ca,this.qa,this.na]),I(a,3,[this.S,this.u,this.R,this.da,this.F])}return a.data()};
+m.restore=function(a){var b;if(a&&(b=a[0])&&b.length)switch(this.B.za){case T.za:return this.Ba=b[0],this.H=b[1],this.Ca=b[2],this.aa=b[3],this.fa=b[4],this.ta=b[5],this.ua=b[6],!0;case U.za:return this.ha=b[0],this.L=b[1],b=a[1],this.M=b[0],this.O=b[1],b=a[2],this.J=b[0],this.ca=b[1],this.qa=b[2],this.na=b[3],b=a[3],this.S=b[0],this.u=b[1],this.R=b[2],this.da=b[3],this.F=b[4],!0}return!1};m.start=function(){};m.stop=function(){};m.Ad=function(a,b){var c=this.Ba;D(this,a,null,b,"STATUS0",c,!0);return c};
+m.Bd=function(a,b){var c=this.H;D(this,a,null,b,"STATUS1",c,!0);return c};m.Cd=function(a,b){var c=this.Ca;D(this,a,null,b,"STATUS2",c,!0);return c};m.zd=function(a,b){var c=this.aa>>8-this.fa&255;D(this,a,null,b,"SHIFT.RESULT",c,!0);return c};m.Kd=function(a,b,c){D(this,a,b,c,"SHIFT.COUNT",null,!0);this.fa=b};m.Md=function(a,b,c){D(this,a,b,c,"SOUND1",null,!0);this.ta=b};m.Ld=function(a,b,c){D(this,a,b,c,"SHIFT.DATA",null,!0);this.aa=b<<8|this.aa>>8};
+m.Nd=function(a,b,c){D(this,a,b,c,"SOUND2",null,!0);this.ua=b};m.Od=function(a,b,c){D(this,a,b,c,"WATCHDOG",null,!0)};function Od(a){var b=0,c=0,d=~a.S;for(a=0;10>a;a++)d&1&&(b=9-a),d>>=1;for(a=0;10>a;a++)d&1&&(c=9-a),d>>=1;return 10*b+c}
+m.Dd=function(a,b){var c=this.L,c=c&~U.Ia.nc;if((Gc(this.b)&64)<<1&&(c|=U.Ia.nc,c!=this.L)){var d,e;d=this.R&1;e=this.R>>1&7;switch(e){case U.Ja.Ua.pd:break;case U.Ja.Ua.Oc:this.S=this.S<<1|d;break;case U.Ja.Ua.Tc:d=Od(this);this.F[d]=U.Ja.Kb;jb(this,"doNVRCommand(): erase data at addr "+t(d));break;case U.Ja.Ua.Pc:this.u=this.u<<1|d;break;case U.Ja.Ua.td:d=Od(this);e=this.u&U.Ja.Kb;this.F[d]=e;jb(this,"doNVRCommand(): write data "+t(e)+" to addr "+t(d));break;case U.Ja.Ua.nd:d=Od(this);e=this.F[d];
+null==e&&(e=U.Ja.Kb);this.u=e;jb(this,"doNVRCommand():  read data "+t(e)+" from addr "+t(d));break;case U.Ja.Ua.od:this.u<<=1;this.da=this.u&U.Ja.Kb+1;break;default:jb(this,"doNVRCommand(): unrecognized command "+da(e))}}c&=~U.Ia.oc;this.da&&(c|=U.Ia.oc);c&=~U.Ia.jc;this.K&&this.K.Zb()&&(c|=U.Ia.jc);c&=~U.Ia.qc;this.Ma&&this.Ma.Zb()&&(c|=U.Ia.qc);this.L=c;D(this,a,null,b,"FLAGS",c);return c};m.Pd=function(a,b,c){D(this,a,b,c,"BRIGHTNESS");this.ha=b};
+m.Sd=function(a,b,c){D(this,a,b,c,"NVR.LATCH");this.R=b};m.Rd=function(a,b,c){D(this,a,b,c,"DC012");a=b&3;switch(b>>2&3){case 0:this.J=this.J&-4|a;break;case 1:this.J=this.J&-13|a<<2;this.video&&(b=this.video,a=this.J,jb(b,"updateScrollOffset("+a+")"),b.hb!==a&&((b.hb=a)?Pd(b,-1):b.xb=!0));break;case 2:switch(a){case 0:this.ca=~this.ca;break;case 2:case 3:this.qa=3-a}break;case 3:this.na=a}};
+m.Qd=function(a,b,c){D(this,a,b,c,"DC011");b&U.Va.md?(b&=U.Va.pc,this.O!=b&&(this.O=b,this.video&&(a=this.video,b=this.O==U.Va.pc?50:60,jb(a,"updateRate("+b+")"),a.Yb=b))):(b&=U.Va.ic,this.M!=b&&(this.M=b,this.video&&(a=this.M==U.Va.ic?132:80,b=this.video,jb(b,"updateDimensions("+a+","+(80<a&&this.L&U.Ia.mc?14:24)+")"),b.da=a,b.oa=b.zc,80<a&&b.oa--,Qd(b)&&Rd(b))))};T.Rb={0:S.prototype.Ad,1:S.prototype.Bd,2:S.prototype.Cd,3:S.prototype.zd};
 T.Sb={2:S.prototype.Kd,3:S.prototype.Md,4:S.prototype.Ld,5:S.prototype.Nd,6:S.prototype.Od};U.Rb={66:S.prototype.Dd};U.Sb={66:S.prototype.Pd,98:S.prototype.Sd,162:S.prototype.Rd,194:S.prototype.Qd};Ma(function(){for(var a=B(document,"pc8080","chipset"),b=0;b<a.length;b++){var c=a[b],d=z(c),d=new S(d);hb(d,c)}});
-function Qd(a){w.call(this,"ROM",a,Qd);this.A=null;this.J=a.addr;this.u=a.size;this.H=a.writable;this.B=a.alias;this.F=a.file;this.K=ea(this.F);if(this.F){a=this.F;var b=fa(this.K);"json"!=b&&"hex"!=b&&(a=ha()+"/api/v1/dump?file="+this.F+"&format=bytes&decimal=true");var c=this;sa(a,null,!0,function(a,b,f){Rd(c,a,b,f)})}}bb(Qd);var Sd=[0,5];Qd.prototype.Pa=function(a,b,c,d){this.w=b;this.b=c;this.I=d;Td(this)};
-Qd.prototype.Da=function(){if(this.Qa){if(this.I){var a=this.I,b=this.id,c=this.J,d=this.u,e=this.Qa,f=[],h;for(h in e){var g=e[h];"number"==typeof g&&(e[h]=g={o:g});var k=g.o,l=g.a;if(void 0!==k){var p=f,k=[k>>>0,h],q=oa(p,k,a.Ta);0>q&&p.splice(-(q+1),0,k)}l&&(g.a=l.replace(/''/g,'"'))}a.H.push({Je:b,G:c,Fd:d,Qa:e,rc:f})}delete this.Qa}return!0};Qd.prototype.Ga=function(){return!0};
-function Rd(a,b,c,d){if(d)a.ia("Unable to load system ROM (error "+d+": "+b+")");else{db(a.Lb,b,c);if("["==c.charAt(0)||"{"==c.charAt(0))try{var e=eval("("+c+")"),f=e.bytes,h=e.data;if(f)a.A=f;else if(h)for(a.A=Array(4*h.length),d=c=0;c<h.length;c++)a.A[d++]=h[c]&255,a.A[d++]=h[c]>>8&255,a.A[d++]=h[c]>>16&255,a.A[d++]=h[c]>>24&255;else a.A=e;a.Qa=e.symbols;if(!a.A.length){u("Empty ROM: "+b);return}if(1==a.A.length){u(a.A[0]);return}}catch(g){a.ia("ROM data error: "+g.message);return}else for(b=c.replace(/\n/gm,
-" ").replace(/ +$/,"").split(" "),a.A=Array(b.length),e=0;e<b.length;e++)a.A[e]=ca(b[e],16);Td(a)}}
-function Td(a){if(!nb(a))if(!a.F)E(a);else if(a.A&&a.w){a.u||(a.u=a.A.length);if(a.A.length!=a.u)qb(a,"ROM size (0x"+n(a.A.length)+") does not match specified size ("+("0x"+n(a.u))+")");else if(Ud(a,a.J)){var b=[];"number"==typeof a.B?b.push(a.B):null!=a.B&&a.B.length&&(b=a.B);for(var c=0;c<b.length;c++){for(var d=a,e=b[c],f=d.w,h=d.u,g=[],k=d.J>>>f.pa;0<h&&k<f.Y.length;)g.push(f.Y[k++]),h-=f.Fa;f=d.w;d=d.u;h=0;for(e>>>=f.pa;0<d&&e<f.Y.length;){k=g[h++];if(!k)break;f.Y[e++]=k;d-=f.Fa}}delete a.A}E(a)}}
-function Ud(a,b){if(yb(a.w,b,a.u,a.H?1:$b)){var c;for(c=0;c<a.A.length;c++)Db(a.w,b+c,a.A[c]);if(a.H&&256==b){for(c=0;c<Sd.length;c++)Db(a.w,Sd[c],118);Pc(a.b,function(a){return function(b){if(0<=Sd.indexOf(b)){var c=!1,h=a.b,g=a.I;if(5==b)switch(c=!0,h.U){case 2:Vd(a,String.fromCharCode(h.W));break;case 9:for(var k=Vc(h),l="",p=255;p--;){var q=a.b.$(k++);if(36==q)break;l+=String.fromCharCode(q)}Vd(a,l);break;default:c=!1}c?Jd.call(h):g&&(a.g("\nCP/M vector "+t(b)),G(h,b),g.ma());b=!0}else b=!1;return b}}(a));
-Rc(a.b,b)}return!0}return!1}function Vd(a,b){b=b.replace(/\r/g,"");a.Ea&&(a.Ea.value+=b,a.Ea.scrollTop=a.Ea.scrollHeight)}Ma(function(){for(var a=B(document,"pc8080","rom"),b=0;b<a.length;b++){var c=a[b],d=z(c),d=new Qd(d);hb(d,c)}});function Wd(a){w.call(this,"RAM",a,Wd);this.B=a.addr;this.u=a.size;this.A=!1}bb(Wd);m=Wd.prototype;m.Pa=function(a,b,c,d){this.w=b;this.b=c;this.I=d;E(this)};m.Da=function(a,b){b||this.reset();return!0};m.Ga=function(a){return a?this.save():!0};
-m.reset=function(){!this.A&&this.u&&yb(this.w,this.B,this.u,1)&&(this.A=!0);this.A||u("No RAM allocated")};m.save=function(){return null};m.restore=function(){return!0};Ma(function(){for(var a=B(document,"pc8080","ram"),b=0;b<a.length;b++){var c=a[b],d=z(c),d=new Wd(d);hb(d,c)}});function Xd(a){w.call(this,"Keyboard",a,Xd,65536);(a=a.model)&&!Yd[a]&&Oa("Unrecognized Keyboard8080 model: "+a);this.w=Yd[a]||{};this.reset();E(this)}bb(Xd);
-var Zd={za:1978.1,C:{},hc:{65:37,68:39,76:32},wb:{},Wa:{"1p":49,"2p":50,coin:51,left:37,right:39,fire:32}},V={za:100,C:{},hc:{},wb:{},Wa:{setup:120},Qc:{Aa:130,INIT:127},Ka:{Aa:130,dd:1,cd:2,bd:4,ad:8,ed:16,lc:32,kc:63,qd:64,be:128,INIT:0},$c:127};V.C[46]=3;V.C[80]=5;V.C[79]=6;V.C[89]=7;V.C[84]=8;V.C[87]=9;V.C[81]=10;V.C[39]=16;V.C[221]=20;V.C[219]=21;V.C[73]=22;V.C[85]=23;V.C[82]=24;V.C[69]=25;V.C[49]=26;V.C[37]=32;V.C[40]=34;V.C[117]=35;V.C[19]=35;V.C[192]=36;V.C[189]=37;V.C[57]=38;V.C[55]=39;
+function Sd(a){w.call(this,"ROM",a,Sd);this.A=null;this.J=a.addr;this.u=a.size;this.H=a.writable;this.B=a.alias;this.F=a.file;this.K=ea(this.F);if(this.F){a=this.F;var b=fa(this.K);"json"!=b&&"hex"!=b&&(a=ha()+"/api/v1/dump?file="+this.F+"&format=bytes&decimal=true");var c=this;sa(a,null,!0,function(a,b,f){Td(c,a,b,f)})}}bb(Sd);var Ud=[0,5];Sd.prototype.Pa=function(a,b,c,d){this.w=b;this.b=c;this.I=d;Vd(this)};
+Sd.prototype.Da=function(){if(this.Qa){if(this.I){var a=this.I,b=this.id,c=this.J,d=this.u,e=this.Qa,f=[],h;for(h in e){var g=e[h];"number"==typeof g&&(e[h]=g={o:g});var k=g.o,l=g.a;if(void 0!==k){var p=f,k=[k>>>0,h],q=oa(p,k,a.Ta);0>q&&p.splice(-(q+1),0,k)}l&&(g.a=l.replace(/''/g,'"'))}a.H.push({Je:b,G:c,Fd:d,Qa:e,rc:f})}delete this.Qa}return!0};Sd.prototype.Ga=function(){return!0};
+function Td(a,b,c,d){if(d)a.ia("Unable to load system ROM (error "+d+": "+b+")");else{db(a.Lb,b,c);if("["==c.charAt(0)||"{"==c.charAt(0))try{var e=eval("("+c+")"),f=e.bytes,h=e.data;if(f)a.A=f;else if(h)for(a.A=Array(4*h.length),d=c=0;c<h.length;c++)a.A[d++]=h[c]&255,a.A[d++]=h[c]>>8&255,a.A[d++]=h[c]>>16&255,a.A[d++]=h[c]>>24&255;else a.A=e;a.Qa=e.symbols;if(!a.A.length){u("Empty ROM: "+b);return}if(1==a.A.length){u(a.A[0]);return}}catch(g){a.ia("ROM data error: "+g.message);return}else for(b=c.replace(/\n/gm,
+" ").replace(/ +$/,"").split(" "),a.A=Array(b.length),e=0;e<b.length;e++)a.A[e]=ca(b[e],16);Vd(a)}}
+function Vd(a){if(!nb(a))if(!a.F)E(a);else if(a.A&&a.w){a.u||(a.u=a.A.length);if(a.A.length!=a.u)qb(a,"ROM size (0x"+n(a.A.length)+") does not match specified size ("+("0x"+n(a.u))+")");else if(Wd(a,a.J)){var b=[];"number"==typeof a.B?b.push(a.B):null!=a.B&&a.B.length&&(b=a.B);for(var c=0;c<b.length;c++){for(var d=a,e=b[c],f=d.w,h=d.u,g=[],k=d.J>>>f.pa;0<h&&k<f.Y.length;)g.push(f.Y[k++]),h-=f.Fa;f=d.w;d=d.u;h=0;for(e>>>=f.pa;0<d&&e<f.Y.length;){k=g[h++];if(!k)break;f.Y[e++]=k;d-=f.Fa}}delete a.A}E(a)}}
+function Wd(a,b){if(zb(a.w,b,a.u,a.H?1:ac)){var c;for(c=0;c<a.A.length;c++)Eb(a.w,b+c,a.A[c]);if(a.H&&256==b){for(c=0;c<Ud.length;c++)Eb(a.w,Ud[c],118);Qc(a.b,function(a){return function(b){if(0<=Ud.indexOf(b)){var c=!1,h=a.b,g=a.I;if(5==b)switch(c=!0,h.U){case 2:Xd(a,String.fromCharCode(h.W));break;case 9:for(var k=Wc(h),l="",p=255;p--;){var q=a.b.$(k++);if(36==q)break;l+=String.fromCharCode(q)}Xd(a,l);break;default:c=!1}c?Kd.call(h):g&&(a.g("\nCP/M vector "+t(b)),G(h,b),g.ma());b=!0}else b=!1;return b}}(a));
+Sc(a.b,b)}return!0}return!1}function Xd(a,b){b=b.replace(/\r/g,"");a.Ea&&(a.Ea.value+=b,a.Ea.scrollTop=a.Ea.scrollHeight)}Ma(function(){for(var a=B(document,"pc8080","rom"),b=0;b<a.length;b++){var c=a[b],d=z(c),d=new Sd(d);hb(d,c)}});function Yd(a){w.call(this,"RAM",a,Yd);this.B=a.addr;this.u=a.size;this.A=!1}bb(Yd);m=Yd.prototype;m.Pa=function(a,b,c,d){this.w=b;this.b=c;this.I=d;E(this)};m.Da=function(a,b){b||this.reset();return!0};m.Ga=function(a){return a?this.save():!0};
+m.reset=function(){!this.A&&this.u&&zb(this.w,this.B,this.u,1)&&(this.A=!0);this.A||u("No RAM allocated")};m.save=function(){return null};m.restore=function(){return!0};Ma(function(){for(var a=B(document,"pc8080","ram"),b=0;b<a.length;b++){var c=a[b],d=z(c),d=new Yd(d);hb(d,c)}});function Zd(a){w.call(this,"Keyboard",a,Zd,65536);(a=a.model)&&!$d[a]&&Oa("Unrecognized Keyboard8080 model: "+a);this.w=$d[a]||{};this.reset();E(this)}bb(Zd);
+var ae={za:1978.1,C:{},hc:{65:37,68:39,76:32},wb:{},Wa:{"1p":49,"2p":50,coin:51,left:37,right:39,fire:32}},V={za:100,C:{},hc:{},wb:{},Wa:{setup:120},Qc:{Aa:130,INIT:127},Ka:{Aa:130,dd:1,cd:2,bd:4,ad:8,ed:16,lc:32,kc:63,qd:64,be:128,INIT:0},$c:127};V.C[46]=3;V.C[80]=5;V.C[79]=6;V.C[89]=7;V.C[84]=8;V.C[87]=9;V.C[81]=10;V.C[39]=16;V.C[221]=20;V.C[219]=21;V.C[73]=22;V.C[85]=23;V.C[82]=24;V.C[69]=25;V.C[49]=26;V.C[37]=32;V.C[40]=34;V.C[117]=35;V.C[19]=35;V.C[192]=36;V.C[189]=37;V.C[57]=38;V.C[55]=39;
 V.C[52]=40;V.C[51]=41;V.C[27]=42;V.C[38]=48;V.C[114]=49;V.C[112]=50;V.C[8]=51;V.C[187]=52;V.C[48]=53;V.C[56]=54;V.C[54]=55;V.C[53]=56;V.C[50]=57;V.C[9]=58;V.C[103]=64;V.C[115]=65;V.C[113]=66;V.C[96]=67;V.C[118]=68;V.C[220]=69;V.C[76]=70;V.C[75]=71;V.C[71]=72;V.C[70]=73;V.C[65]=74;V.C[104]=80;V.C[2013]=81;V.C[98]=82;V.C[97]=83;V.C[222]=85;V.C[186]=86;V.C[74]=87;V.C[72]=88;V.C[68]=89;V.C[83]=90;V.C[110]=96;V.C[116]=97;V.C[101]=98;V.C[100]=99;V.C[13]=100;V.C[190]=101;V.C[188]=102;V.C[78]=103;
-V.C[66]=104;V.C[88]=105;V.C[119]=106;V.C[105]=112;V.C[99]=113;V.C[102]=114;V.C[109]=115;V.C[191]=117;V.C[77]=118;V.C[32]=119;V.C[86]=120;V.C[67]=121;V.C[90]=122;V.C[120]=123;V.C[17]=124;V.C[16]=125;V.C[20]=126;V.wb={l4:V.Ka.dd,l3:V.Ka.cd,l2:V.Ka.bd,l1:V.Ka.ad,locked:V.Ka.ed,local:V.Ka.lc,online:~V.Ka.lc};var Yd={SI1978:Zd,VT100:V};
-Xd.prototype.la=function(a,b,c){var d=this,e=a+"-"+b;if(void 0===this.N[e]){if("led"==a&&this.w.wb[b])return this.N[e]=c,!0;switch(b){case "kbd":return c.onkeydown=function(a){return $d(d,a,!0)},c.onkeyup=function(a){return $d(d,a,!1)},!0;default:if(this.w.Wa&&void 0!==this.w.Wa[b])return this.N[e]=c,a=function(a,b){return function(){ae(a,b,!0)}}(this,this.w.Wa[b]),b=function(a,b){return function(){ae(a,b,!1);a.A&&a.A.gb()}}(this,this.w.Wa[b]),"ontouchstart"in window?(c.ontouchstart=a,c.ontouchend=
-b):(c.onmousedown=a,c.onmouseup=c.onmouseout=b),!0}}return!1};Xd.prototype.Pa=function(a,b,c,d){this.A=a;this.b=c;this.I=d;this.J=ub(a,"ChipSet");Gb(b,this,this.w.Rb);Sb(b,this,this.w.Sb)};Xd.prototype.Da=function(a,b){if(!b)if(!a)this.reset();else if(!this.restore(a))return!1;return!0};Xd.prototype.Ga=function(a){return a?this.save():!0};V.INIT=[[V.Ka.INIT,V.Qc.INIT,-1]];m=Xd.prototype;m.reset=function(){this.u=[];this.w.INIT&&!this.restore(this.w.INIT)&&this.ia("reset error")};
-m.save=function(){var a=new H(this);switch(this.w.za){case V.za:I(a,0,[this.H,this.F,-1])}return a.data()};m.restore=function(a){var b;if(a&&(b=a[0])&&b.length)switch(this.w.za){case Zd.za:return!0;case V.za:return this.H=b[0],be(this,this.H&V.Ka.kc),this.F=b[1],this.B=b[2],!0}return!1};function be(a,b){for(var c in a.w.wb){var d=a.N["led-"+c];if(d){var e=a.w.wb[c],f=!!(b&e);e&e-1&&(f=!(b&~e));d.style.backgroundColor=f?"#ff0000":"#000000"}}}
-function $d(a,b,c){var d=!0,e;a:if(e=b.keyCode,e=a.w.hc[e]||e,!a.w.C[e]){for(var f in a.w.Wa)if(a.w.Wa[f]===e){e=f;break a}e=null}e&&(d=ae(a,e,c),b.preventDefault());return d}
-function ae(a,b,c){var d;a:{for(d=0;d<a.u.length;d++)if(a.u[d].fc==b)break a;d=-1}if(c)0>d?a.u.push({fc:b,ac:Date.now(),Mb:!1}):(a.u[d].ac=Date.now(),a.u[d].Mb=!1);else if(0<=d){if(!a.u[d].Mb){var e=a.u[d].ac;if(e&&100>Date.now()-e)return a.u[d].Mb=!0,ce(a),!0}a.u.splice(d,1)}if(a.J){d=0;switch(b){case "1p":d=T.Xa.gd;break;case "2p":d=T.Xa.ld;break;case "coin":d=T.Xa.Sc;break;case "left":d=T.Xa.jd;break;case "right":d=T.Xa.kd;break;case "fire":d=T.Xa.hd}d&&(a=a.J,b=d,a.J&=~b,c&&(a.J|=b))}return!0}
-function ce(a){for(var b=0,c=-1;b<a.u.length;){if(a.u[b].Mb){var d=a.u[b].fc,e=100-(Date.now()-a.u[b].ac);if(0<e){if(0>c||c>e)c=e}else{ae(a,d,!1);b=0;continue}}b++}0<=c&&setTimeout(function(){ce(a)},c)}m.Zb=function(){return!0};m.Ed=function(a,b){var c=this.F;0<=this.B&&(this.B<this.u.length?(c=this.u[this.B],this.B++,c=V.C[c.fc],c&128&&(c&=127)):(this.B=-1,c=V.$c),this.F=c,Ed(this.b,1));D(this,a,null,b,"KBDUART.ADDRESS",c);return c};
-m.Td=function(a,b,c){D(this,a,b,c,"KBDUART.STATUS");this.H=b;be(this,b&V.Ka.kc);b&V.Ka.qd&&(this.B=0,Ed(this.b,1))};V.Rb={130:Xd.prototype.Ed};V.Sb={130:Xd.prototype.Td};Ma(function(){for(var a=B(document,"pc8080","keyboard"),b=0;b<a.length;b++){var c=a[b],d=z(c),d=new Xd(d);hb(d,c)}});
-function de(a,b,c,d,e){var f=this;this.Hc=Aa("Gecko/");var h=["","moz","ms","webkit"];w.call(this,"Video",a,de,262144);this.aa=a.screenWidth;this.R=a.screenHeight;this.ta=a.bufferAddr;this.Wd=a.bufferRAM;var g=a.bufferFormat;this.fa=g&&ee[g.toUpperCase()]||fe;this.da=a.bufferCols;this.ga=a.bufferRows;this.zc=this.oa=a.cellWidth||1;this.ja=a.cellHeight||1;this.Ma=null;this.Gc=!1;this.$a=a.bufferBits||1;this.Xd=a.bufferLeft||0;if(this.B=a.bufferRotate)this.B=this.B%360,0<this.B&&(this.B-=360),-90!=
+V.C[66]=104;V.C[88]=105;V.C[119]=106;V.C[105]=112;V.C[99]=113;V.C[102]=114;V.C[109]=115;V.C[191]=117;V.C[77]=118;V.C[32]=119;V.C[86]=120;V.C[67]=121;V.C[90]=122;V.C[120]=123;V.C[17]=124;V.C[16]=125;V.C[20]=126;V.wb={l4:V.Ka.dd,l3:V.Ka.cd,l2:V.Ka.bd,l1:V.Ka.ad,locked:V.Ka.ed,local:V.Ka.lc,online:~V.Ka.lc};var $d={SI1978:ae,VT100:V};
+Zd.prototype.la=function(a,b,c){var d=this,e=a+"-"+b;if(void 0===this.N[e]){if("led"==a&&this.w.wb[b])return this.N[e]=c,!0;switch(b){case "kbd":return c.onkeydown=function(a){return be(d,a,!0)},c.onkeyup=function(a){return be(d,a,!1)},!0;default:if(this.w.Wa&&void 0!==this.w.Wa[b])return this.N[e]=c,a=function(a,b){return function(){ce(a,b,!0)}}(this,this.w.Wa[b]),b=function(a,b){return function(){ce(a,b,!1);a.A&&a.A.gb()}}(this,this.w.Wa[b]),"ontouchstart"in window?(c.ontouchstart=a,c.ontouchend=
+b):(c.onmousedown=a,c.onmouseup=c.onmouseout=b),!0}}return!1};Zd.prototype.Pa=function(a,b,c,d){this.A=a;this.b=c;this.I=d;this.J=vb(a,"ChipSet");Hb(b,this,this.w.Rb);Tb(b,this,this.w.Sb)};Zd.prototype.Da=function(a,b){if(!b)if(!a)this.reset();else if(!this.restore(a))return!1;return!0};Zd.prototype.Ga=function(a){return a?this.save():!0};V.INIT=[[V.Ka.INIT,V.Qc.INIT,-1]];m=Zd.prototype;m.reset=function(){this.u=[];this.w.INIT&&!this.restore(this.w.INIT)&&this.ia("reset error")};
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 function Af(a,b,c){var d=!0;try{b.length&&"end"!=b?c||a.g(">> "+b):(a.da&&(a.g("ended assemble at "+Z(a.ca.G)),a.O=a.ca,a.da=!1),b="");var e=b.charAt(0);if('"'==e||"'"==e)return!0;a.qa=null;if(nb(a)&&0<b.length){a.da&&(b="a "+Z(a.ca.G)+" "+b);var f=b.replace(/ +/g," ").split(" ");if(f&&f.length)for(var h=f[0],g=h.charAt(0),k=1;k<h.length;k++){var l=h.charAt(k);if("?"==g||"r"==g||"a">l||"z"<l){f[0]=h.substr(k);f.unshift(h.substr(0,k));break}}switch(f[0].charAt(0)){case "a":var p=Ie(a,f[1],!0);if(p)if(a.ca=
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-this.F.Ea)for(b=0;b<e.length;b++)d=e[b],d.ia=this.F.ia,d.g=this.F.g,d.Ea=this.F.Ea;this.g("PC8080 v1.24.0\nCopyright \u00a9 2012-2016 Jeff Parsons <Jeff@pcjs.org>\nLicense: GPL version 3 or later <http://gnu.org/licenses/gpl.html>");for(b=0;b<e.length;b++)d=e[b],d.Pa&&d.Pa(this,this.w,this.b,this.I);b=null;d=a.resume;void 0!==d&&(1<d.length?b=this.L=d:this.A=parseInt(d,10));var f;if(a=mc(this,"state")||(f=!0,a.state))b=this.S=a,f||(this.K=!0,this.A=Vf),this.A&&(this.O=new H(this,"1.24.0"),Xf(this.O)?
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+Ma(function(){for(var a=B(document,"pc8080","debugger"),b=0;b<a.length;b++){var c=a[b],d=z(c),d=new xe(d);hb(d,c)}});
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+m.Fb=function(a){void 0===a&&(a=this.A||(this.M?1:Vf));if(!this.B){this.B++;var b=!1,c=!1;this.aa=!1;var d=this.O||new H(this,"1.24.0");if(-1==a)b=!0;else if(a>Vf){if(Xf(d,this.M)){this.J=new H(this,"1.24.0","failsafe");Xf(this.J)&&(cg(this,d),a=2,dg(this.J));I(this.J,"timestamp",qa());eg(this.J);var e=this.A&&!this.K;if(1==a||ua("Click OK to restore the previous PC8080 machine state, or CANCEL to reset the machine.")){if(c=ag(d)){var f=bg(d,"code"),h=bg(d,"data");f&&("ok"==f?Xf(d,h):("error"==f&&
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+m.sc=function(a){var b=a[0],c=0>a[1];a=a[2];this.ha=!0;this.D.va=!0;var d=this.N.power;d&&(d.textContent="Shutdown");this.b&&(fg(this,this.b,b,c,a),Ec(this.b));this.aa&&(cg(this,b),b.clear());!c&&this.J&&(this.J.clear(),delete this.J);this.B=0};
+function cg(a,b){if(ua("There may be a problem with your PC8080 machine.\n\nTo help us diagnose it, click OK to send this PC8080 machine state to http://www.pcjs.org.")){var c=a.u||"",d=b.toString(),e={app:"PC8080",ver:"1.24.0"};e.url=a.ga;e.user=c;e.type="bug";e.data=d;sa("http://www.pcjs.org/api/v1/report",e,!0)}}
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 (c?(g=d=!1,b?(a.u&&gg(a,a.u,f.toString()),eg(h)&&eg(f)||(e=null,d=g=!0)):a.A&&(d=!0,g=3==a.A),d&&f.clear(g)):e=f.toString());c&&(a.D.va=!1,b=a.N.power)&&(b.textContent="Power");a.B=0;return e}m.reset=function(){this.w&&this.w.reset&&(jb(this,"Resetting "+this.w.type),this.w.reset());for(var a=eb(this.id),b=0;b<a.length;b++){var c=a[b];c!==this&&c!==this.w&&c.reset&&(jb(this,"Resetting "+c.type),c.reset())}};
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-m.la=function(a,b,c){var d=this;switch(b){case "power":return this.N[b]=c,c.onclick=function(){d.B||(d.D.va?Sf(d,!1,!0):Zf(d,d.Fb))},!0;case "reset":return this.N[b]=c,c.onclick=function(){if(d.D.va&&!d.B)if(d.A&&!d.L){var a=va("Click OK to save changes to this PC8080 machine.\n\nWARNING: If you CANCEL, all disk changes will be discarded.");Sf(d,a,!0);!a&&d.S?window&&window.location.reload():d.Fb(Vf)}else d.reset(),d.b&&Dc(d.b)},!0;case "save":if(ga()){c.parentNode.removeChild(c);break}this.N[b]=
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index 69fb47513..ab38f8dcc 100644
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index 8a7e82fa6..447696fb1 100644
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