Added support for (attempting to) suppress alerts that are meaningless if the user has aborted a machine by exiting the page before it was done loading

modules/pc8080/lib/computer.js

@@ -1543,6 +1543,8 @@ class Computer8080 extends Component {
             var computer = /** @type {Computer8080} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                computer.flags.unloading = false;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onShow(" + computer.fInitialized + "," + computer.flags.powered + ")");
                 }
@@ -1597,6 +1599,11 @@ class Computer8080 extends Component {
             var computer = /** @type {Computer8080} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                /*
+                 * Added a new flag that Component functions (eg, notice()) should check before alerting the user.
+                 */
+                computer.flags.unloading = true;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onExit(" + computer.flags.powered + ")");
                 }

modules/pcx86/lib/computer.js

@@ -1571,6 +1571,8 @@ class Computer extends Component {
             var computer = /** @type {Computer} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                computer.flags.unloading = false;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onShow(" + computer.fInitialized + "," + computer.flags.powered + ")");
                 }
@@ -1620,6 +1622,11 @@ class Computer extends Component {
             var computer = /** @type {Computer} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                /*
+                 * Added a new flag that Component functions (eg, notice()) should check before alerting the user.
+                 */
+                computer.flags.unloading = true;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onExit(" + computer.flags.powered + ")");
                 }

modules/pdp10/lib/computer.js

@@ -1539,6 +1539,8 @@ class ComputerPDP10 extends Component {
             var computer = /** @type {ComputerPDP10} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                computer.flags.unloading = false;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onShow(" + computer.fInitialized + "," + computer.flags.powered + ")");
                 }
@@ -1593,6 +1595,11 @@ class ComputerPDP10 extends Component {
             var computer = /** @type {ComputerPDP10} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                /*
+                 * Added a new flag that Component functions (eg, notice()) should check before alerting the user.
+                 */
+                computer.flags.unloading = true;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onExit(" + computer.flags.powered + ")");
                 }

modules/pdp11/lib/computer.js

@@ -1543,6 +1543,8 @@ class ComputerPDP11 extends Component {
             var computer = /** @type {ComputerPDP11} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                computer.flags.unloading = false;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onShow(" + computer.fInitialized + "," + computer.flags.powered + ")");
                 }
@@ -1597,6 +1599,11 @@ class ComputerPDP11 extends Component {
             var computer = /** @type {ComputerPDP11} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                /*
+                 * Added a new flag that Component functions (eg, notice()) should check before alerting the user.
+                 */
+                computer.flags.unloading = true;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onExit(" + computer.flags.powered + ")");
                 }

modules/shared/lib/component.js

@@ -134,6 +134,7 @@ class Component {
             busy:       false,
             busyCancel: false,
             powered:    false,
+            unloading:  false,
             error:      false
         };
 
@@ -852,7 +853,8 @@ class Component {
      * @this {Component}
      * @return {string}
      */
-    toString() {
+    toString()
+    {
         return (this.name? this.name : (this.id || this.type));
     }
 
@@ -862,7 +864,8 @@ class Component {
      * @this {Component}
      * @return {number} unique machine number
      */
-    getMachineNum() {
+    getMachineNum()
+    {
         var nMachine = 1;
         if (this.idMachine) {
             var aDigits = this.idMachine.match(/\d+/);
@@ -884,7 +887,8 @@ class Component {
      * @param {string} [sValue] optional data value
      * @return {boolean} true if binding was successful, false if unrecognized binding request
      */
-    setBinding(sHTMLType, sBinding, control, sValue) {
+    setBinding(sHTMLType, sBinding, control, sValue)
+    {
         switch (sBinding) {
         case "clear":
             if (!this.bindings[sBinding]) {
@@ -957,7 +961,8 @@ class Component {
      * @param {string} [s] is the message text
      * @param {string} [type] is the message type
      */
-    log(s, type) {
+    log(s, type)
+    {
         if (!COMPILED) {
             Component.log(s, type || this.id || this.type);
         }
@@ -978,7 +983,8 @@ class Component {
      * @param {boolean|number} f is the expression asserted to be true
      * @param {string} [s] is a description of the assertion to be displayed or logged on failure
      */
-    assert(f, s) {
+    assert(f, s)
+    {
         if (DEBUG) {
             if (!f) {
                 s = "assertion failure in " + (this.id || this.type) + (s? ": " + s : "");
@@ -1025,7 +1031,8 @@ class Component {
      * @param {string} [type] is the message type
      * @param {string} [id] is the caller's ID, if any
      */
-    println(s, type, id) {
+    println(s, type, id)
+    {
         Component.println(s, type, id || this.id);
     }
 
@@ -1037,7 +1044,8 @@ class Component {
      *
      * @param {string} s is the message text
      */
-    status(s) {
+    status(s)
+    {
         this.println(this.idComponent + ": " + s);
     }
 
@@ -1053,7 +1061,18 @@ class Component {
      * @param {boolean} [fPrintOnly]
      * @param {string} [id] is the caller's ID, if any
      */
-    notice(s, fPrintOnly, id) {
+    notice(s, fPrintOnly, id)
+    {
+        if (!fPrintOnly) {
+            /*
+             * See if the associated computer, if any, is "unloading"....
+             */
+            var computer = Component.getComponentByType("Computer", this.id);
+            if (computer && computer.flags.unloading) {
+                console.log("ignoring notice during unload: " + s);
+                return;
+            }
+        }
         Component.notice(s, fPrintOnly, id || this.type);
     }
 
@@ -1065,7 +1084,8 @@ class Component {
      * @this {Component}
      * @param {string} s describes a fatal error condition
      */
-    setError(s) {
+    setError(s)
+    {
         this.flags.error = true;
         this.notice(s);         // TODO: Any cases where we should still prefix this string with "Fatal error: "?
     }
@@ -1089,7 +1109,8 @@ class Component {
      * @this {Component}
      * @return {boolean} true if a fatal error condition exists, false if not
      */
-    isError() {
+    isError()
+    {
         if (this.flags.error) {
             this.println(this.toString() + " error");
             return true;
@@ -1110,7 +1131,8 @@ class Component {
      * @param {function()} [fnReady]
      * @return {boolean} true if the component is in a "ready" state, false if not
      */
-    isReady(fnReady) {
+    isReady(fnReady)
+    {
         if (fnReady) {
             if (this.flags.ready) {
                 fnReady();
@@ -1130,7 +1152,8 @@ class Component {
      * @this {Component}
      * @param {boolean} [fReady] is assumed to indicate "ready" unless EXPLICITLY set to false
      */
-    setReady(fReady) {
+    setReady(fReady)
+    {
         if (!this.flags.error) {
             this.flags.ready = (fReady !== false);
             if (this.flags.ready) {
@@ -1151,7 +1174,8 @@ class Component {
      * @param {boolean} [fCancel] is set to true to cancel a "busy" state
      * @return {boolean} true if "busy", false if not
      */
-    isBusy(fCancel) {
+    isBusy(fCancel)
+    {
         if (this.flags.busy) {
             if (fCancel) {
                 this.flags.busyCancel = true;
@@ -1171,7 +1195,8 @@ class Component {
      * @param {boolean} fBusy
      * @return {boolean}
      */
-    setBusy(fBusy) {
+    setBusy(fBusy)
+    {
         if (this.flags.busyCancel) {
             this.flags.busy = false;
             this.flags.busyCancel = false;
@@ -1193,7 +1218,8 @@ class Component {
      * @param {boolean} [fRepower] is true if this is "repower" notification
      * @return {boolean} true if successful, false if failure
      */
-    powerUp(data, fRepower) {
+    powerUp(data, fRepower)
+    {
         this.flags.powered = true;
         return true;
     }
@@ -1206,7 +1232,8 @@ class Component {
      * @param {boolean} [fShutdown]
      * @return {Object|boolean} component state if fSave; otherwise, true if successful, false if failure
      */
-    powerDown(fSave, fShutdown) {
+    powerDown(fSave, fShutdown)
+    {
         if (fShutdown) this.flags.powered = false;
         return true;
     }
@@ -1220,7 +1247,8 @@ class Component {
      * @param {number} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      * @return {boolean} true if all specified message enabled, false if not
      */
-    messageEnabled(bitsMessage) {
+    messageEnabled(bitsMessage)
+    {
         if (DEBUGGER && this.dbg) {
             if (this === this.dbg) {
                 bitsMessage |= 0;
@@ -1244,7 +1272,8 @@ class Component {
      * @param {number|boolean} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      * @param {boolean} [fAddress] is true to display the current address
      */
-    printMessage(sMessage, bitsMessage, fAddress) {
+    printMessage(sMessage, bitsMessage, fAddress)
+    {
         if (DEBUGGER && this.dbg) {
             if (bitsMessage === true || this.messageEnabled(bitsMessage | 0)) {
                 this.dbg.message(sMessage, fAddress);
@@ -1266,7 +1295,8 @@ class Component {
      * @param {number|null} [bIn] is the input value, if known, on an input operation
      * @param {number|boolean} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      */
-    printMessageIO(port, bOut, addrFrom, name, bIn, bitsMessage) {
+    printMessageIO(port, bOut, addrFrom, name, bIn, bitsMessage)
+    {
         if (DEBUGGER && this.dbg) {
             if (bitsMessage === true) {
                 bitsMessage = 0;

versions/c1pjs/1.35.1/c1p-uncompiled.js

@@ -2203,6 +2203,7 @@ class Component {
             busy:       false,
             busyCancel: false,
             powered:    false,
+            unloading:  false,
             error:      false
         };
 
@@ -2921,7 +2922,8 @@ class Component {
      * @this {Component}
      * @return {string}
      */
-    toString() {
+    toString()
+    {
         return (this.name? this.name : (this.id || this.type));
     }
 
@@ -2931,7 +2933,8 @@ class Component {
      * @this {Component}
      * @return {number} unique machine number
      */
-    getMachineNum() {
+    getMachineNum()
+    {
         var nMachine = 1;
         if (this.idMachine) {
             var aDigits = this.idMachine.match(/\d+/);
@@ -2953,7 +2956,8 @@ class Component {
      * @param {string} [sValue] optional data value
      * @return {boolean} true if binding was successful, false if unrecognized binding request
      */
-    setBinding(sHTMLType, sBinding, control, sValue) {
+    setBinding(sHTMLType, sBinding, control, sValue)
+    {
         switch (sBinding) {
         case "clear":
             if (!this.bindings[sBinding]) {
@@ -3026,7 +3030,8 @@ class Component {
      * @param {string} [s] is the message text
      * @param {string} [type] is the message type
      */
-    log(s, type) {
+    log(s, type)
+    {
         if (!COMPILED) {
             Component.log(s, type || this.id || this.type);
         }
@@ -3047,7 +3052,8 @@ class Component {
      * @param {boolean|number} f is the expression asserted to be true
      * @param {string} [s] is a description of the assertion to be displayed or logged on failure
      */
-    assert(f, s) {
+    assert(f, s)
+    {
         if (DEBUG) {
             if (!f) {
                 s = "assertion failure in " + (this.id || this.type) + (s? ": " + s : "");
@@ -3094,7 +3100,8 @@ class Component {
      * @param {string} [type] is the message type
      * @param {string} [id] is the caller's ID, if any
      */
-    println(s, type, id) {
+    println(s, type, id)
+    {
         Component.println(s, type, id || this.id);
     }
 
@@ -3106,7 +3113,8 @@ class Component {
      *
      * @param {string} s is the message text
      */
-    status(s) {
+    status(s)
+    {
         this.println(this.idComponent + ": " + s);
     }
 
@@ -3122,7 +3130,18 @@ class Component {
      * @param {boolean} [fPrintOnly]
      * @param {string} [id] is the caller's ID, if any
      */
-    notice(s, fPrintOnly, id) {
+    notice(s, fPrintOnly, id)
+    {
+        if (!fPrintOnly) {
+            /*
+             * See if the associated computer, if any, is "unloading"....
+             */
+            var computer = Component.getComponentByType("Computer", this.id);
+            if (computer && computer.flags.unloading) {
+                console.log("ignoring notice during unload: " + s);
+                return;
+            }
+        }
         Component.notice(s, fPrintOnly, id || this.type);
     }
 
@@ -3134,7 +3153,8 @@ class Component {
      * @this {Component}
      * @param {string} s describes a fatal error condition
      */
-    setError(s) {
+    setError(s)
+    {
         this.flags.error = true;
         this.notice(s);         // TODO: Any cases where we should still prefix this string with "Fatal error: "?
     }
@@ -3158,7 +3178,8 @@ class Component {
      * @this {Component}
      * @return {boolean} true if a fatal error condition exists, false if not
      */
-    isError() {
+    isError()
+    {
         if (this.flags.error) {
             this.println(this.toString() + " error");
             return true;
@@ -3179,7 +3200,8 @@ class Component {
      * @param {function()} [fnReady]
      * @return {boolean} true if the component is in a "ready" state, false if not
      */
-    isReady(fnReady) {
+    isReady(fnReady)
+    {
         if (fnReady) {
             if (this.flags.ready) {
                 fnReady();
@@ -3199,7 +3221,8 @@ class Component {
      * @this {Component}
      * @param {boolean} [fReady] is assumed to indicate "ready" unless EXPLICITLY set to false
      */
-    setReady(fReady) {
+    setReady(fReady)
+    {
         if (!this.flags.error) {
             this.flags.ready = (fReady !== false);
             if (this.flags.ready) {
@@ -3220,7 +3243,8 @@ class Component {
      * @param {boolean} [fCancel] is set to true to cancel a "busy" state
      * @return {boolean} true if "busy", false if not
      */
-    isBusy(fCancel) {
+    isBusy(fCancel)
+    {
         if (this.flags.busy) {
             if (fCancel) {
                 this.flags.busyCancel = true;
@@ -3240,7 +3264,8 @@ class Component {
      * @param {boolean} fBusy
      * @return {boolean}
      */
-    setBusy(fBusy) {
+    setBusy(fBusy)
+    {
         if (this.flags.busyCancel) {
             this.flags.busy = false;
             this.flags.busyCancel = false;
@@ -3262,7 +3287,8 @@ class Component {
      * @param {boolean} [fRepower] is true if this is "repower" notification
      * @return {boolean} true if successful, false if failure
      */
-    powerUp(data, fRepower) {
+    powerUp(data, fRepower)
+    {
         this.flags.powered = true;
         return true;
     }
@@ -3275,7 +3301,8 @@ class Component {
      * @param {boolean} [fShutdown]
      * @return {Object|boolean} component state if fSave; otherwise, true if successful, false if failure
      */
-    powerDown(fSave, fShutdown) {
+    powerDown(fSave, fShutdown)
+    {
         if (fShutdown) this.flags.powered = false;
         return true;
     }
@@ -3289,7 +3316,8 @@ class Component {
      * @param {number} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      * @return {boolean} true if all specified message enabled, false if not
      */
-    messageEnabled(bitsMessage) {
+    messageEnabled(bitsMessage)
+    {
         if (DEBUGGER && this.dbg) {
             if (this === this.dbg) {
                 bitsMessage |= 0;
@@ -3313,7 +3341,8 @@ class Component {
      * @param {number|boolean} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      * @param {boolean} [fAddress] is true to display the current address
      */
-    printMessage(sMessage, bitsMessage, fAddress) {
+    printMessage(sMessage, bitsMessage, fAddress)
+    {
         if (DEBUGGER && this.dbg) {
             if (bitsMessage === true || this.messageEnabled(bitsMessage | 0)) {
                 this.dbg.message(sMessage, fAddress);
@@ -3335,7 +3364,8 @@ class Component {
      * @param {number|null} [bIn] is the input value, if known, on an input operation
      * @param {number|boolean} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      */
-    printMessageIO(port, bOut, addrFrom, name, bIn, bitsMessage) {
+    printMessageIO(port, bOut, addrFrom, name, bIn, bitsMessage)
+    {
         if (DEBUGGER && this.dbg) {
             if (bitsMessage === true) {
                 bitsMessage = 0;

versions/pc8080/1.35.1/pc8080-uncompiled.js

@@ -2493,6 +2493,7 @@ class Component {
             busy:       false,
             busyCancel: false,
             powered:    false,
+            unloading:  false,
             error:      false
         };
 
@@ -3211,7 +3212,8 @@ class Component {
      * @this {Component}
      * @return {string}
      */
-    toString() {
+    toString()
+    {
         return (this.name? this.name : (this.id || this.type));
     }
 
@@ -3221,7 +3223,8 @@ class Component {
      * @this {Component}
      * @return {number} unique machine number
      */
-    getMachineNum() {
+    getMachineNum()
+    {
         var nMachine = 1;
         if (this.idMachine) {
             var aDigits = this.idMachine.match(/\d+/);
@@ -3243,7 +3246,8 @@ class Component {
      * @param {string} [sValue] optional data value
      * @return {boolean} true if binding was successful, false if unrecognized binding request
      */
-    setBinding(sHTMLType, sBinding, control, sValue) {
+    setBinding(sHTMLType, sBinding, control, sValue)
+    {
         switch (sBinding) {
         case "clear":
             if (!this.bindings[sBinding]) {
@@ -3316,7 +3320,8 @@ class Component {
      * @param {string} [s] is the message text
      * @param {string} [type] is the message type
      */
-    log(s, type) {
+    log(s, type)
+    {
         if (!COMPILED) {
             Component.log(s, type || this.id || this.type);
         }
@@ -3337,7 +3342,8 @@ class Component {
      * @param {boolean|number} f is the expression asserted to be true
      * @param {string} [s] is a description of the assertion to be displayed or logged on failure
      */
-    assert(f, s) {
+    assert(f, s)
+    {
         if (DEBUG) {
             if (!f) {
                 s = "assertion failure in " + (this.id || this.type) + (s? ": " + s : "");
@@ -3384,7 +3390,8 @@ class Component {
      * @param {string} [type] is the message type
      * @param {string} [id] is the caller's ID, if any
      */
-    println(s, type, id) {
+    println(s, type, id)
+    {
         Component.println(s, type, id || this.id);
     }
 
@@ -3396,7 +3403,8 @@ class Component {
      *
      * @param {string} s is the message text
      */
-    status(s) {
+    status(s)
+    {
         this.println(this.idComponent + ": " + s);
     }
 
@@ -3412,7 +3420,18 @@ class Component {
      * @param {boolean} [fPrintOnly]
      * @param {string} [id] is the caller's ID, if any
      */
-    notice(s, fPrintOnly, id) {
+    notice(s, fPrintOnly, id)
+    {
+        if (!fPrintOnly) {
+            /*
+             * See if the associated computer, if any, is "unloading"....
+             */
+            var computer = Component.getComponentByType("Computer", this.id);
+            if (computer && computer.flags.unloading) {
+                console.log("ignoring notice during unload: " + s);
+                return;
+            }
+        }
         Component.notice(s, fPrintOnly, id || this.type);
     }
 
@@ -3424,7 +3443,8 @@ class Component {
      * @this {Component}
      * @param {string} s describes a fatal error condition
      */
-    setError(s) {
+    setError(s)
+    {
         this.flags.error = true;
         this.notice(s);         // TODO: Any cases where we should still prefix this string with "Fatal error: "?
     }
@@ -3448,7 +3468,8 @@ class Component {
      * @this {Component}
      * @return {boolean} true if a fatal error condition exists, false if not
      */
-    isError() {
+    isError()
+    {
         if (this.flags.error) {
             this.println(this.toString() + " error");
             return true;
@@ -3469,7 +3490,8 @@ class Component {
      * @param {function()} [fnReady]
      * @return {boolean} true if the component is in a "ready" state, false if not
      */
-    isReady(fnReady) {
+    isReady(fnReady)
+    {
         if (fnReady) {
             if (this.flags.ready) {
                 fnReady();
@@ -3489,7 +3511,8 @@ class Component {
      * @this {Component}
      * @param {boolean} [fReady] is assumed to indicate "ready" unless EXPLICITLY set to false
      */
-    setReady(fReady) {
+    setReady(fReady)
+    {
         if (!this.flags.error) {
             this.flags.ready = (fReady !== false);
             if (this.flags.ready) {
@@ -3510,7 +3533,8 @@ class Component {
      * @param {boolean} [fCancel] is set to true to cancel a "busy" state
      * @return {boolean} true if "busy", false if not
      */
-    isBusy(fCancel) {
+    isBusy(fCancel)
+    {
         if (this.flags.busy) {
             if (fCancel) {
                 this.flags.busyCancel = true;
@@ -3530,7 +3554,8 @@ class Component {
      * @param {boolean} fBusy
      * @return {boolean}
      */
-    setBusy(fBusy) {
+    setBusy(fBusy)
+    {
         if (this.flags.busyCancel) {
             this.flags.busy = false;
             this.flags.busyCancel = false;
@@ -3552,7 +3577,8 @@ class Component {
      * @param {boolean} [fRepower] is true if this is "repower" notification
      * @return {boolean} true if successful, false if failure
      */
-    powerUp(data, fRepower) {
+    powerUp(data, fRepower)
+    {
         this.flags.powered = true;
         return true;
     }
@@ -3565,7 +3591,8 @@ class Component {
      * @param {boolean} [fShutdown]
      * @return {Object|boolean} component state if fSave; otherwise, true if successful, false if failure
      */
-    powerDown(fSave, fShutdown) {
+    powerDown(fSave, fShutdown)
+    {
         if (fShutdown) this.flags.powered = false;
         return true;
     }
@@ -3579,7 +3606,8 @@ class Component {
      * @param {number} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      * @return {boolean} true if all specified message enabled, false if not
      */
-    messageEnabled(bitsMessage) {
+    messageEnabled(bitsMessage)
+    {
         if (DEBUGGER && this.dbg) {
             if (this === this.dbg) {
                 bitsMessage |= 0;
@@ -3603,7 +3631,8 @@ class Component {
      * @param {number|boolean} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      * @param {boolean} [fAddress] is true to display the current address
      */
-    printMessage(sMessage, bitsMessage, fAddress) {
+    printMessage(sMessage, bitsMessage, fAddress)
+    {
         if (DEBUGGER && this.dbg) {
             if (bitsMessage === true || this.messageEnabled(bitsMessage | 0)) {
                 this.dbg.message(sMessage, fAddress);
@@ -3625,7 +3654,8 @@ class Component {
      * @param {number|null} [bIn] is the input value, if known, on an input operation
      * @param {number|boolean} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      */
-    printMessageIO(port, bOut, addrFrom, name, bIn, bitsMessage) {
+    printMessageIO(port, bOut, addrFrom, name, bIn, bitsMessage)
+    {
         if (DEBUGGER && this.dbg) {
             if (bitsMessage === true) {
                 bitsMessage = 0;
@@ -24201,6 +24231,8 @@ class Computer8080 extends Component {
             var computer = /** @type {Computer8080} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                computer.flags.unloading = false;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onShow(" + computer.fInitialized + "," + computer.flags.powered + ")");
                 }
@@ -24255,6 +24287,11 @@ class Computer8080 extends Component {
             var computer = /** @type {Computer8080} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                /*
+                 * Added a new flag that Component functions (eg, notice()) should check before alerting the user.
+                 */
+                computer.flags.unloading = true;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onExit(" + computer.flags.powered + ")");
                 }

versions/pcx86/1.35.1/pcx86-uncompiled.js

@@ -2721,6 +2721,7 @@ class Component {
             busy:       false,
             busyCancel: false,
             powered:    false,
+            unloading:  false,
             error:      false
         };
 
@@ -3439,7 +3440,8 @@ class Component {
      * @this {Component}
      * @return {string}
      */
-    toString() {
+    toString()
+    {
         return (this.name? this.name : (this.id || this.type));
     }
 
@@ -3449,7 +3451,8 @@ class Component {
      * @this {Component}
      * @return {number} unique machine number
      */
-    getMachineNum() {
+    getMachineNum()
+    {
         var nMachine = 1;
         if (this.idMachine) {
             var aDigits = this.idMachine.match(/\d+/);
@@ -3471,7 +3474,8 @@ class Component {
      * @param {string} [sValue] optional data value
      * @return {boolean} true if binding was successful, false if unrecognized binding request
      */
-    setBinding(sHTMLType, sBinding, control, sValue) {
+    setBinding(sHTMLType, sBinding, control, sValue)
+    {
         switch (sBinding) {
         case "clear":
             if (!this.bindings[sBinding]) {
@@ -3544,7 +3548,8 @@ class Component {
      * @param {string} [s] is the message text
      * @param {string} [type] is the message type
      */
-    log(s, type) {
+    log(s, type)
+    {
         if (!COMPILED) {
             Component.log(s, type || this.id || this.type);
         }
@@ -3565,7 +3570,8 @@ class Component {
      * @param {boolean|number} f is the expression asserted to be true
      * @param {string} [s] is a description of the assertion to be displayed or logged on failure
      */
-    assert(f, s) {
+    assert(f, s)
+    {
         if (DEBUG) {
             if (!f) {
                 s = "assertion failure in " + (this.id || this.type) + (s? ": " + s : "");
@@ -3612,7 +3618,8 @@ class Component {
      * @param {string} [type] is the message type
      * @param {string} [id] is the caller's ID, if any
      */
-    println(s, type, id) {
+    println(s, type, id)
+    {
         Component.println(s, type, id || this.id);
     }
 
@@ -3624,7 +3631,8 @@ class Component {
      *
      * @param {string} s is the message text
      */
-    status(s) {
+    status(s)
+    {
         this.println(this.idComponent + ": " + s);
     }
 
@@ -3640,7 +3648,18 @@ class Component {
      * @param {boolean} [fPrintOnly]
      * @param {string} [id] is the caller's ID, if any
      */
-    notice(s, fPrintOnly, id) {
+    notice(s, fPrintOnly, id)
+    {
+        if (!fPrintOnly) {
+            /*
+             * See if the associated computer, if any, is "unloading"....
+             */
+            var computer = Component.getComponentByType("Computer", this.id);
+            if (computer && computer.flags.unloading) {
+                console.log("ignoring notice during unload: " + s);
+                return;
+            }
+        }
         Component.notice(s, fPrintOnly, id || this.type);
     }
 
@@ -3652,7 +3671,8 @@ class Component {
      * @this {Component}
      * @param {string} s describes a fatal error condition
      */
-    setError(s) {
+    setError(s)
+    {
         this.flags.error = true;
         this.notice(s);         // TODO: Any cases where we should still prefix this string with "Fatal error: "?
     }
@@ -3676,7 +3696,8 @@ class Component {
      * @this {Component}
      * @return {boolean} true if a fatal error condition exists, false if not
      */
-    isError() {
+    isError()
+    {
         if (this.flags.error) {
             this.println(this.toString() + " error");
             return true;
@@ -3697,7 +3718,8 @@ class Component {
      * @param {function()} [fnReady]
      * @return {boolean} true if the component is in a "ready" state, false if not
      */
-    isReady(fnReady) {
+    isReady(fnReady)
+    {
         if (fnReady) {
             if (this.flags.ready) {
                 fnReady();
@@ -3717,7 +3739,8 @@ class Component {
      * @this {Component}
      * @param {boolean} [fReady] is assumed to indicate "ready" unless EXPLICITLY set to false
      */
-    setReady(fReady) {
+    setReady(fReady)
+    {
         if (!this.flags.error) {
             this.flags.ready = (fReady !== false);
             if (this.flags.ready) {
@@ -3738,7 +3761,8 @@ class Component {
      * @param {boolean} [fCancel] is set to true to cancel a "busy" state
      * @return {boolean} true if "busy", false if not
      */
-    isBusy(fCancel) {
+    isBusy(fCancel)
+    {
         if (this.flags.busy) {
             if (fCancel) {
                 this.flags.busyCancel = true;
@@ -3758,7 +3782,8 @@ class Component {
      * @param {boolean} fBusy
      * @return {boolean}
      */
-    setBusy(fBusy) {
+    setBusy(fBusy)
+    {
         if (this.flags.busyCancel) {
             this.flags.busy = false;
             this.flags.busyCancel = false;
@@ -3780,7 +3805,8 @@ class Component {
      * @param {boolean} [fRepower] is true if this is "repower" notification
      * @return {boolean} true if successful, false if failure
      */
-    powerUp(data, fRepower) {
+    powerUp(data, fRepower)
+    {
         this.flags.powered = true;
         return true;
     }
@@ -3793,7 +3819,8 @@ class Component {
      * @param {boolean} [fShutdown]
      * @return {Object|boolean} component state if fSave; otherwise, true if successful, false if failure
      */
-    powerDown(fSave, fShutdown) {
+    powerDown(fSave, fShutdown)
+    {
         if (fShutdown) this.flags.powered = false;
         return true;
     }
@@ -3807,7 +3834,8 @@ class Component {
      * @param {number} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      * @return {boolean} true if all specified message enabled, false if not
      */
-    messageEnabled(bitsMessage) {
+    messageEnabled(bitsMessage)
+    {
         if (DEBUGGER && this.dbg) {
             if (this === this.dbg) {
                 bitsMessage |= 0;
@@ -3831,7 +3859,8 @@ class Component {
      * @param {number|boolean} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      * @param {boolean} [fAddress] is true to display the current address
      */
-    printMessage(sMessage, bitsMessage, fAddress) {
+    printMessage(sMessage, bitsMessage, fAddress)
+    {
         if (DEBUGGER && this.dbg) {
             if (bitsMessage === true || this.messageEnabled(bitsMessage | 0)) {
                 this.dbg.message(sMessage, fAddress);
@@ -3853,7 +3882,8 @@ class Component {
      * @param {number|null} [bIn] is the input value, if known, on an input operation
      * @param {number|boolean} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      */
-    printMessageIO(port, bOut, addrFrom, name, bIn, bitsMessage) {
+    printMessageIO(port, bOut, addrFrom, name, bIn, bitsMessage)
+    {
         if (DEBUGGER && this.dbg) {
             if (bitsMessage === true) {
                 bitsMessage = 0;
@@ -75213,6 +75243,8 @@ class Computer extends Component {
             var computer = /** @type {Computer} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                computer.flags.unloading = false;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onShow(" + computer.fInitialized + "," + computer.flags.powered + ")");
                 }
@@ -75262,6 +75294,11 @@ class Computer extends Component {
             var computer = /** @type {Computer} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                /*
+                 * Added a new flag that Component functions (eg, notice()) should check before alerting the user.
+                 */
+                computer.flags.unloading = true;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onExit(" + computer.flags.powered + ")");
                 }

versions/pdpjs/1.35.1/pdp10-uncompiled.js

@@ -2493,6 +2493,7 @@ class Component {
             busy:       false,
             busyCancel: false,
             powered:    false,
+            unloading:  false,
             error:      false
         };
 
@@ -3211,7 +3212,8 @@ class Component {
      * @this {Component}
      * @return {string}
      */
-    toString() {
+    toString()
+    {
         return (this.name? this.name : (this.id || this.type));
     }
 
@@ -3221,7 +3223,8 @@ class Component {
      * @this {Component}
      * @return {number} unique machine number
      */
-    getMachineNum() {
+    getMachineNum()
+    {
         var nMachine = 1;
         if (this.idMachine) {
             var aDigits = this.idMachine.match(/\d+/);
@@ -3243,7 +3246,8 @@ class Component {
      * @param {string} [sValue] optional data value
      * @return {boolean} true if binding was successful, false if unrecognized binding request
      */
-    setBinding(sHTMLType, sBinding, control, sValue) {
+    setBinding(sHTMLType, sBinding, control, sValue)
+    {
         switch (sBinding) {
         case "clear":
             if (!this.bindings[sBinding]) {
@@ -3316,7 +3320,8 @@ class Component {
      * @param {string} [s] is the message text
      * @param {string} [type] is the message type
      */
-    log(s, type) {
+    log(s, type)
+    {
         if (!COMPILED) {
             Component.log(s, type || this.id || this.type);
         }
@@ -3337,7 +3342,8 @@ class Component {
      * @param {boolean|number} f is the expression asserted to be true
      * @param {string} [s] is a description of the assertion to be displayed or logged on failure
      */
-    assert(f, s) {
+    assert(f, s)
+    {
         if (DEBUG) {
             if (!f) {
                 s = "assertion failure in " + (this.id || this.type) + (s? ": " + s : "");
@@ -3384,7 +3390,8 @@ class Component {
      * @param {string} [type] is the message type
      * @param {string} [id] is the caller's ID, if any
      */
-    println(s, type, id) {
+    println(s, type, id)
+    {
         Component.println(s, type, id || this.id);
     }
 
@@ -3396,7 +3403,8 @@ class Component {
      *
      * @param {string} s is the message text
      */
-    status(s) {
+    status(s)
+    {
         this.println(this.idComponent + ": " + s);
     }
 
@@ -3412,7 +3420,18 @@ class Component {
      * @param {boolean} [fPrintOnly]
      * @param {string} [id] is the caller's ID, if any
      */
-    notice(s, fPrintOnly, id) {
+    notice(s, fPrintOnly, id)
+    {
+        if (!fPrintOnly) {
+            /*
+             * See if the associated computer, if any, is "unloading"....
+             */
+            var computer = Component.getComponentByType("Computer", this.id);
+            if (computer && computer.flags.unloading) {
+                console.log("ignoring notice during unload: " + s);
+                return;
+            }
+        }
         Component.notice(s, fPrintOnly, id || this.type);
     }
 
@@ -3424,7 +3443,8 @@ class Component {
      * @this {Component}
      * @param {string} s describes a fatal error condition
      */
-    setError(s) {
+    setError(s)
+    {
         this.flags.error = true;
         this.notice(s);         // TODO: Any cases where we should still prefix this string with "Fatal error: "?
     }
@@ -3448,7 +3468,8 @@ class Component {
      * @this {Component}
      * @return {boolean} true if a fatal error condition exists, false if not
      */
-    isError() {
+    isError()
+    {
         if (this.flags.error) {
             this.println(this.toString() + " error");
             return true;
@@ -3469,7 +3490,8 @@ class Component {
      * @param {function()} [fnReady]
      * @return {boolean} true if the component is in a "ready" state, false if not
      */
-    isReady(fnReady) {
+    isReady(fnReady)
+    {
         if (fnReady) {
             if (this.flags.ready) {
                 fnReady();
@@ -3489,7 +3511,8 @@ class Component {
      * @this {Component}
      * @param {boolean} [fReady] is assumed to indicate "ready" unless EXPLICITLY set to false
      */
-    setReady(fReady) {
+    setReady(fReady)
+    {
         if (!this.flags.error) {
             this.flags.ready = (fReady !== false);
             if (this.flags.ready) {
@@ -3510,7 +3533,8 @@ class Component {
      * @param {boolean} [fCancel] is set to true to cancel a "busy" state
      * @return {boolean} true if "busy", false if not
      */
-    isBusy(fCancel) {
+    isBusy(fCancel)
+    {
         if (this.flags.busy) {
             if (fCancel) {
                 this.flags.busyCancel = true;
@@ -3530,7 +3554,8 @@ class Component {
      * @param {boolean} fBusy
      * @return {boolean}
      */
-    setBusy(fBusy) {
+    setBusy(fBusy)
+    {
         if (this.flags.busyCancel) {
             this.flags.busy = false;
             this.flags.busyCancel = false;
@@ -3552,7 +3577,8 @@ class Component {
      * @param {boolean} [fRepower] is true if this is "repower" notification
      * @return {boolean} true if successful, false if failure
      */
-    powerUp(data, fRepower) {
+    powerUp(data, fRepower)
+    {
         this.flags.powered = true;
         return true;
     }
@@ -3565,7 +3591,8 @@ class Component {
      * @param {boolean} [fShutdown]
      * @return {Object|boolean} component state if fSave; otherwise, true if successful, false if failure
      */
-    powerDown(fSave, fShutdown) {
+    powerDown(fSave, fShutdown)
+    {
         if (fShutdown) this.flags.powered = false;
         return true;
     }
@@ -3579,7 +3606,8 @@ class Component {
      * @param {number} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      * @return {boolean} true if all specified message enabled, false if not
      */
-    messageEnabled(bitsMessage) {
+    messageEnabled(bitsMessage)
+    {
         if (DEBUGGER && this.dbg) {
             if (this === this.dbg) {
                 bitsMessage |= 0;
@@ -3603,7 +3631,8 @@ class Component {
      * @param {number|boolean} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      * @param {boolean} [fAddress] is true to display the current address
      */
-    printMessage(sMessage, bitsMessage, fAddress) {
+    printMessage(sMessage, bitsMessage, fAddress)
+    {
         if (DEBUGGER && this.dbg) {
             if (bitsMessage === true || this.messageEnabled(bitsMessage | 0)) {
                 this.dbg.message(sMessage, fAddress);
@@ -3625,7 +3654,8 @@ class Component {
      * @param {number|null} [bIn] is the input value, if known, on an input operation
      * @param {number|boolean} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      */
-    printMessageIO(port, bOut, addrFrom, name, bIn, bitsMessage) {
+    printMessageIO(port, bOut, addrFrom, name, bIn, bitsMessage)
+    {
         if (DEBUGGER && this.dbg) {
             if (bitsMessage === true) {
                 bitsMessage = 0;
@@ -26900,6 +26930,8 @@ class ComputerPDP10 extends Component {
             var computer = /** @type {ComputerPDP10} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                computer.flags.unloading = false;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onShow(" + computer.fInitialized + "," + computer.flags.powered + ")");
                 }
@@ -26954,6 +26986,11 @@ class ComputerPDP10 extends Component {
             var computer = /** @type {ComputerPDP10} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                /*
+                 * Added a new flag that Component functions (eg, notice()) should check before alerting the user.
+                 */
+                computer.flags.unloading = true;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onExit(" + computer.flags.powered + ")");
                 }

versions/pdpjs/1.35.1/pdp11-uncompiled.js

@@ -2721,6 +2721,7 @@ class Component {
             busy:       false,
             busyCancel: false,
             powered:    false,
+            unloading:  false,
             error:      false
         };
 
@@ -3439,7 +3440,8 @@ class Component {
      * @this {Component}
      * @return {string}
      */
-    toString() {
+    toString()
+    {
         return (this.name? this.name : (this.id || this.type));
     }
 
@@ -3449,7 +3451,8 @@ class Component {
      * @this {Component}
      * @return {number} unique machine number
      */
-    getMachineNum() {
+    getMachineNum()
+    {
         var nMachine = 1;
         if (this.idMachine) {
             var aDigits = this.idMachine.match(/\d+/);
@@ -3471,7 +3474,8 @@ class Component {
      * @param {string} [sValue] optional data value
      * @return {boolean} true if binding was successful, false if unrecognized binding request
      */
-    setBinding(sHTMLType, sBinding, control, sValue) {
+    setBinding(sHTMLType, sBinding, control, sValue)
+    {
         switch (sBinding) {
         case "clear":
             if (!this.bindings[sBinding]) {
@@ -3544,7 +3548,8 @@ class Component {
      * @param {string} [s] is the message text
      * @param {string} [type] is the message type
      */
-    log(s, type) {
+    log(s, type)
+    {
         if (!COMPILED) {
             Component.log(s, type || this.id || this.type);
         }
@@ -3565,7 +3570,8 @@ class Component {
      * @param {boolean|number} f is the expression asserted to be true
      * @param {string} [s] is a description of the assertion to be displayed or logged on failure
      */
-    assert(f, s) {
+    assert(f, s)
+    {
         if (DEBUG) {
             if (!f) {
                 s = "assertion failure in " + (this.id || this.type) + (s? ": " + s : "");
@@ -3612,7 +3618,8 @@ class Component {
      * @param {string} [type] is the message type
      * @param {string} [id] is the caller's ID, if any
      */
-    println(s, type, id) {
+    println(s, type, id)
+    {
         Component.println(s, type, id || this.id);
     }
 
@@ -3624,7 +3631,8 @@ class Component {
      *
      * @param {string} s is the message text
      */
-    status(s) {
+    status(s)
+    {
         this.println(this.idComponent + ": " + s);
     }
 
@@ -3640,7 +3648,18 @@ class Component {
      * @param {boolean} [fPrintOnly]
      * @param {string} [id] is the caller's ID, if any
      */
-    notice(s, fPrintOnly, id) {
+    notice(s, fPrintOnly, id)
+    {
+        if (!fPrintOnly) {
+            /*
+             * See if the associated computer, if any, is "unloading"....
+             */
+            var computer = Component.getComponentByType("Computer", this.id);
+            if (computer && computer.flags.unloading) {
+                console.log("ignoring notice during unload: " + s);
+                return;
+            }
+        }
         Component.notice(s, fPrintOnly, id || this.type);
     }
 
@@ -3652,7 +3671,8 @@ class Component {
      * @this {Component}
      * @param {string} s describes a fatal error condition
      */
-    setError(s) {
+    setError(s)
+    {
         this.flags.error = true;
         this.notice(s);         // TODO: Any cases where we should still prefix this string with "Fatal error: "?
     }
@@ -3676,7 +3696,8 @@ class Component {
      * @this {Component}
      * @return {boolean} true if a fatal error condition exists, false if not
      */
-    isError() {
+    isError()
+    {
         if (this.flags.error) {
             this.println(this.toString() + " error");
             return true;
@@ -3697,7 +3718,8 @@ class Component {
      * @param {function()} [fnReady]
      * @return {boolean} true if the component is in a "ready" state, false if not
      */
-    isReady(fnReady) {
+    isReady(fnReady)
+    {
         if (fnReady) {
             if (this.flags.ready) {
                 fnReady();
@@ -3717,7 +3739,8 @@ class Component {
      * @this {Component}
      * @param {boolean} [fReady] is assumed to indicate "ready" unless EXPLICITLY set to false
      */
-    setReady(fReady) {
+    setReady(fReady)
+    {
         if (!this.flags.error) {
             this.flags.ready = (fReady !== false);
             if (this.flags.ready) {
@@ -3738,7 +3761,8 @@ class Component {
      * @param {boolean} [fCancel] is set to true to cancel a "busy" state
      * @return {boolean} true if "busy", false if not
      */
-    isBusy(fCancel) {
+    isBusy(fCancel)
+    {
         if (this.flags.busy) {
             if (fCancel) {
                 this.flags.busyCancel = true;
@@ -3758,7 +3782,8 @@ class Component {
      * @param {boolean} fBusy
      * @return {boolean}
      */
-    setBusy(fBusy) {
+    setBusy(fBusy)
+    {
         if (this.flags.busyCancel) {
             this.flags.busy = false;
             this.flags.busyCancel = false;
@@ -3780,7 +3805,8 @@ class Component {
      * @param {boolean} [fRepower] is true if this is "repower" notification
      * @return {boolean} true if successful, false if failure
      */
-    powerUp(data, fRepower) {
+    powerUp(data, fRepower)
+    {
         this.flags.powered = true;
         return true;
     }
@@ -3793,7 +3819,8 @@ class Component {
      * @param {boolean} [fShutdown]
      * @return {Object|boolean} component state if fSave; otherwise, true if successful, false if failure
      */
-    powerDown(fSave, fShutdown) {
+    powerDown(fSave, fShutdown)
+    {
         if (fShutdown) this.flags.powered = false;
         return true;
     }
@@ -3807,7 +3834,8 @@ class Component {
      * @param {number} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      * @return {boolean} true if all specified message enabled, false if not
      */
-    messageEnabled(bitsMessage) {
+    messageEnabled(bitsMessage)
+    {
         if (DEBUGGER && this.dbg) {
             if (this === this.dbg) {
                 bitsMessage |= 0;
@@ -3831,7 +3859,8 @@ class Component {
      * @param {number|boolean} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      * @param {boolean} [fAddress] is true to display the current address
      */
-    printMessage(sMessage, bitsMessage, fAddress) {
+    printMessage(sMessage, bitsMessage, fAddress)
+    {
         if (DEBUGGER && this.dbg) {
             if (bitsMessage === true || this.messageEnabled(bitsMessage | 0)) {
                 this.dbg.message(sMessage, fAddress);
@@ -3853,7 +3882,8 @@ class Component {
      * @param {number|null} [bIn] is the input value, if known, on an input operation
      * @param {number|boolean} [bitsMessage] is zero or more MESSAGE_* category flag(s)
      */
-    printMessageIO(port, bOut, addrFrom, name, bIn, bitsMessage) {
+    printMessageIO(port, bOut, addrFrom, name, bIn, bitsMessage)
+    {
         if (DEBUGGER && this.dbg) {
             if (bitsMessage === true) {
                 bitsMessage = 0;
@@ -30777,6 +30807,8 @@ class ComputerPDP11 extends Component {
             var computer = /** @type {ComputerPDP11} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                computer.flags.unloading = false;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onShow(" + computer.fInitialized + "," + computer.flags.powered + ")");
                 }
@@ -30831,6 +30863,11 @@ class ComputerPDP11 extends Component {
             var computer = /** @type {ComputerPDP11} */ (Component.getComponentByType("Computer", parmsComputer['id']));
             if (computer) {
 
+                /*
+                 * Added a new flag that Component functions (eg, notice()) should check before alerting the user.
+                 */
+                computer.flags.unloading = true;
+
                 if (DEBUG && computer.messageEnabled()) {
                     computer.printMessage("onExit(" + computer.flags.powered + ")");
                 }