RESET and SYSRQ is now trapped by a hypervisor

assets/disk0/tvdos/bin/command.js

@@ -37,7 +37,7 @@ function print_prompt_text() {
         con.addch(16);con.curs_right()
         con.color_pair(0,253)
         print(" \\"+shell_pwd.join("\\").substring(1)+" ")
-        if (errorlevel != 0) {
+        if (errorlevel != 0 && errorlevel != "undefined" && errorlevel != undefined) {
             con.color_pair(166,253)
             print("["+errorlevel+"] ")
         }
@@ -48,7 +48,7 @@ function print_prompt_text() {
     }
     else {
 //        con.color_pair(253,255)
-        if (errorlevel != 0)
+        if (errorlevel != 0 && errorlevel != "undefined" && errorlevel != undefined)
             print(CURRENT_DRIVE + ":\\" + shell_pwd.join("\\") + " [" + errorlevel + "]" + PROMPT_TEXT)
         else
             print(CURRENT_DRIVE + ":\\" + shell_pwd.join("\\") + PROMPT_TEXT)

assets/disk0/tvdos/hyve.SYS

@@ -9,8 +9,7 @@ hyve is a hypervisor for tsvm.
 3. hands the control over to the TVDOS until SysRq sequence is struck
 */
 
-let context = parallel.spawnNewContext()
-let bios = `
+const bios = `
 // probe bootable device
 
 var _BIOS = {};
@@ -24,8 +23,6 @@ _BIOS.FIRST_BOOTABLE_PORT = [0,1]; // ah screw it
 
 Object.freeze(_BIOS);
 
-///////////////////////////////////////////////////////////////////////////////
-
 // load a bootsector using 'LOADBOOT'
 let portNumber = 0;
 let driveStatus = 0;
@@ -54,17 +51,46 @@ else {
     printerrln("No bootable medium found.");
 }
 `
-let runner = parallel.attachProgram("TVDOS", context, bios)
-parallel.launch(runner)
 
-sys.sleep(1000);
+let runner = undefined
+
+function startNewInstance() {
+    runner = parallel.attachProgram("TVDOS", parallel.spawnNewContext(), bios)
+    serial.println("Starting new instance "+runner)
+    parallel.launch(runner)
+    sys.sleep(1000)
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+
+// initial kickstart
+startNewInstance()
 
 while (parallel.isRunning(runner)) {
-    graphics.plotPixel( // test fill the framebuffer to prove VM is shared
-        (Math.random() * 560) | 0,
-        (Math.random() * 448) | 0,
-        (Math.random() * 256) | 0
-    )
+    if (sys.peek(-49) >>> 7 == 1) {
+        sys.poke(-49, 0)
+
+        parallel.kill(runner)
+
+        graphics.clearText()
+        graphics.clearPixels(255)
+
+        startNewInstance()
+    }
+    else if (sys.peek(-49) >>> 6 == 1) {
+        sys.poke(-49, 0)
+
+        let threads = parallel.getThreadPool()
+
+        serial.println("======================")
+        for (let i = 0; i < threads.size; i++) {
+            serial.println(`Thread #${i+1}: ${threads[i]}`)
+        }
+        serial.println("======================")
+
+        sys.sleep(300)
+    }
     sys.sleep(0)
 }