mirror of
https://github.com/curioustorvald/tsvm.git
synced 2026-03-14 06:56:05 +09:00
118 lines
2.8 KiB
Plaintext
118 lines
2.8 KiB
Plaintext
/*
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hyve is a hypervisor for tsvm.
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## hyve boot sequence
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0. bios starts up
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1. bootloader calls hyve.js
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2. hyve sets up itself, spawns new context which runs TVDOS.SYS
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3. hands the control over to the TVDOS until SysRq sequence is struck
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*/
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const bios = `
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// probe bootable device
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var _BIOS = {};
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// Syntax: [Port, Drive-number]
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// Port #0-3: Serial port 1-4
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// #4+ : Left for future extension
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// Drive-number always starts at 1
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_BIOS.HYVE = true;
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_BIOS.FIRST_BOOTABLE_PORT = [0,1]; // ah screw it
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Object.freeze(_BIOS);
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// load a bootsector using 'LOADBOOT'
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let portNumber = 0;
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let driveStatus = 0;
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let guestExit = false;
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while (portNumber < 4) {
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if (com.areYouThere(portNumber)) {
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com.sendMessage(portNumber,"DEVRST\x17");
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com.sendMessage(portNumber, 'OPENR"tvdos/TVDOS.SYS",'+_BIOS.FIRST_BOOTABLE_PORT[1]);
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driveStatus = com.getStatusCode(portNumber);
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if (driveStatus == 0) break;
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}
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portNumber += 1;
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}
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if (portNumber < 4) {
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com.sendMessage(portNumber,"READ");
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let r = com.getStatusCode(portNumber);
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if (r == 0) {
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let g = com.pullMessage(portNumber);
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eval(g);
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}
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else {
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println("I/O Error");
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}
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}
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else {
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printerrln("No bootable medium found.");
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}
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`
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let runner = undefined
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function startNewInstance() {
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runner = parallel.attachProgram("TVDOS", parallel.spawnNewContext(), bios)
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serial.println("Starting new instance "+runner)
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parallel.launch(runner)
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sys.sleep(1000)
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}
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const randomkeypusher = `
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while (1) {
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sys.poke(-38, 65 + (Math.random()*26)|0)
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sys.poke(-50, 1)
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sys.sleep(10)
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sys.poke(-50, 0)
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sys.sleep(90)
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}
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`
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function startNewRandomKeyPusher() {
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runner = parallel.attachProgram("TVDOS", parallel.spawnNewContext(), randomkeypusher)
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parallel.launch(runner)
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// initial kickstart
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graphics.setBackground(34,51,68)
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println("== h y v e ============================================== Hypervisor for tsvm ==")
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startNewInstance()
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//startNewRandomKeyPusher()
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while (parallel.isRunning(runner)) {
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if (sys.peek(-49) >>> 7 == 1) {
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sys.poke(-49, 0)
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parallel.kill(runner)
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sys.sleep(50)
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graphics.clearText()
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graphics.clearPixels(255)
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startNewInstance()
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}
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else if (sys.peek(-49) >>> 6 == 1) {
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sys.poke(-49, 0)
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let threads = parallel.getThreadPool()
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serial.println("======================")
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serial.println("Currently running threads:")
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for (let i = 0; i < threads.length; i++) {
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serial.println(`Thread #${i+1}: ${threads[i]}`)
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}
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serial.println("======================")
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sys.sleep(300)
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}
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sys.sleep(0)
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}
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println(" LX4 cya!") |