public void Run(vm machine)
{
if (machine.A == TERMINATE) {
machine.RN = false;
} else if (machine.A == BREAK) {
machine.BRK = true;
} else if (machine.A == UNLOAD_DEVICE) {
int device = machine.AX;
machine.UnloadDevice(device);
} else if (machine.A == LOAD_PROGRAM) {
int device = machine.AX;
StorageDevice disk = (StorageDevice)machine.GetDevice(device);
machine.LoadProgram(disk.GetData());
} else if (machine.A == GET_ROM_DEVICE) {
for (int i = 0; i < machine.NumberOfDevices(); i++) {
VMDevice device = machine.GetDevice(i);
if(device is VirtualROMDisk) {
machine.EX = i;
if(machine.AX <= 0) {
return;
}
machine.AX--;
}
}
throw new Exception("No ROM devices found!");
}
}
public CPU(vm Machine)
{
this.machine = Machine;
hardwareinterupts = new HardwareInterupt[] {
new CoreInterupt(),
new TerminalInterupt(),
new HDIInterupt(),
};
}
public CallStack(vm Machine, Memory RAM)
{
machine = Machine;
ram = RAM;
}
public void Run(vm machine)
{
if (machine.A == PRINTCH) {
Console.Write ((char)machine.B);
} else if (machine.A == PRINTSTR) {
string str = machine.pager.PopString (machine.CR3);
Console.Write (str);
} else if (machine.A == PRINTINT) {
Console.Write (machine.AX);
} else if (machine.A == PRINTFLT) {
Console.Write (machine.EAX);
} else if (machine.A == READCH) {
machine.E = (byte)Console.Read ();
} else if (machine.A == READSTR) {
string str = Console.ReadLine ();
machine.pager.Push (str, machine.CR3);
} else if (machine.A == READINT) {
machine.AX = Convert.ToInt32 (Console.ReadLine ());
} else if (machine.A == READFLT) {
machine.EAX = (float)Convert.ToInt32 (Console.ReadLine ());
} else if (machine.A == PRINTB) {
Console.Write (machine.B);
} else if (machine.A == READB) {
machine.E = Convert.ToByte (Console.ReadLine ());
} else if (machine.A == CLEAR) {
Console.Clear ();
} else if (machine.A == CHFGCOLOR) {
}
}
public void Run(vm machine)
{
if(machine.A == GETDIR) {
machine.pager.Push(machine.hdi.GetWorkingDirectory(),machine.CR3);
} else if (machine.A == CHANGEDIR) {
string path = machine.pager.PopString(machine.CR3);
machine.hdi.ChangeDirectory(path);
} else if (machine.A == CREATEDIR) {
string dir = machine.pager.PopString(machine.CR3);
machine.hdi.CreateDirectory(dir);
} else if (machine.A == CREATEFILE) {
string filename = machine.pager.PopString(machine.CR3);
machine.hdi.CreateFile(filename);
} else if (machine.A == OPENFILE) {
string filename = machine.pager.PopString(machine.CR3);
machine.hdi.OpenFile(filename);
} else if (machine.A == CLOSEFILE) {
machine.hdi.CloseFile();
} else if (machine.A == READBYTES) {
int len = machine.AX;
uint addr = machine.DA;
byte[] data = machine.hdi.ReadBytes(len);
if(machine.pager.checkVAT(addr,(uint)len,machine.CR3)) {
} else {
}
} else if (machine.A == WRITEBYTES) {
} else if (machine.A == LOADPROGRAM) {
byte[] program = machine.hdi.ReadAllBytes();
machine.LoadProgram(program);
} else if (machine.A == DIREXISTS) {
string name = machine.pager.PopString(machine.CR3);
machine.CP = machine.hdi.DirectoryExists(name);
} else if (machine.A == FILEEXISTS) {
string name = machine.pager.PopString(machine.CR3);
machine.CP = machine.hdi.FileExists(name);
}
}
public static void Main(string[] args)
{
List<VMDevice> extradevices = new List<VMDevice> ();
string codetocompile = "";
bool output = false;
string outputfile = "";
bool compileflag = false;
byte[] biosdata = null;
#if DEBUG
string inpdata = Console.ReadLine();
if(inpdata == "") {
inpdata = "-cd ../../testing -b bios";
}
args = inpdata.Split(' ');
#endif
for (int i = 0; i < args.Length; i++) {
if (args [i] == "-rd") {
i++;
extradevices.Add (new VirtualROMDisk (args [i]));
} else if (args [i] == "-i") {
i++;
codetocompile = File.ReadAllText (args [i]);
} else if (args [i] == "-o") {
output = true;
i++;
outputfile = args [i];
} else if (args [i] == "-cd") {
i++;
Directory.SetCurrentDirectory(args[i]);
} else if (args[i] == "-c") {
compileflag = true;
} else if (args[i] == "-b") {
i++;
biosdata = File.ReadAllBytes(args[i]);
} else if (args[i] == "-h") {
Console.WriteLine("Northcode Virtual Machine 2");
Console.WriteLine("Usage: nvm [options]");
Console.WriteLine("Options:");
Console.WriteLine("-cd <directory>\t\t: change working directory, useful for loading bios from somewhere outside of the nvm2 folder");
Console.WriteLine("-i <file>\t\t: input file, select and inputfile for the Assembler");
Console.WriteLine("-c\t\t\t: compile flag, when selected, code from inputfile will be assembled into nasm");
Console.WriteLine("-o <file>\t\t: output file, file for compiler to write assembly into");
Console.WriteLine("-rd <file>\t\t: assembly file to be loaded as a virtual ROM disk that can be read by the vm");
Console.WriteLine("-h\t\t\t: shows this screen of commands");
Console.WriteLine("-b <file>\t\t: Loads a bios to the virtual machine, this is the first program that is run");
Console.WriteLine();
}
}
if (compileflag) {
if (codetocompile == "") {
StringBuilder stb = new StringBuilder ();
string c = "";
while ((c = Console.ReadLine()) != "q") {
stb.AppendLine (c);
}
codetocompile = stb.ToString ();
}
Assembler asm = new Assembler(codetocompile);
asm.Scan();
asm.Assemble();
byte[] program = asm.GetProgram();
if (output) {
File.WriteAllBytes (outputfile, program);
}
return;
}
/*
for(int i = 0; i < program.Length; i++) {
Console.WriteLine(i + ": " + program[i]);
}
*/
vm machine = new vm();
foreach (VMDevice device in extradevices) {
machine.LoadDevice(device);
}
if(biosdata == null)
{
Console.WriteLine("No bios loaded!");
Console.ReadLine();
return;
}
machine.LoadBios(biosdata);
machine.Start();
/*
* MEMORY TEST INTERPRETER
Console.Write("Size of ram (num. of frames (4k blocks)): ");
int rsize = Convert.ToInt32(Console.ReadLine());
Memory test = new Memory(Frame.FRAME_SIZE * rsize);
Pager pager = new Pager(test, 10);
string cmd = "";
int selected = -1;
while ((cmd = Console.ReadLine()) != "") {
string[] sargs = cmd.Split(' ');
try {
if(sargs[0] == "mkpt") {
Console.WriteLine("Created page table at: " + pager.CreatePageEntry(Pager.PAGE_USER_MODE));
} else if (sargs[0] == "rmpt") {
int pt = selected;
selected = -1;
pager.FreePageEntry(pager.getEntry(pt));
Console.WriteLine("Removed page: " + sargs[1]);
} else if(sargs[0] == "select") {
selected = Convert.ToInt32(sargs[1]);
Console.WriteLine("selected page table " + selected);
} else if (sargs[0] == "addpage") {
int pt = selected;
pager.AddPage(pager.getEntry(pt));
Console.WriteLine("Added page");
} else if (sargs[0] == "setmem") {
int pt = selected;
uint stk = Convert.ToUInt32(sargs[1]);
uint hep = Convert.ToUInt32(sargs[2]);
pager.SetupMemory(pager.getEntry(pt),stk,hep);
pager.SetupMemoryAllocation(pager.getEntry(pt));
} else if (sargs[0] == "malloc") {
int pt = selected;
uint size = Convert.ToUInt32(sargs[1]);
uint addr = pager.Malloc(size,pager.getEntry(pt));
Console.WriteLine("Allocated memory at: " + addr);
} else if (sargs[0] == "free") {
int pt = selected;
uint addr = Convert.ToUInt32(sargs[1]);
uint size = Convert.ToUInt32(sargs[2]);
pager.free(addr,size,pager.getEntry(pt));
Console.WriteLine("Freed up space");
} else if (sargs[0] == "dmppt") {
int pt = selected;
Console.WriteLine("Page table " + pt + " at: " + pager.getEntry(pt).PTAddress);
pager.DumpPageTable(pager.getEntry(pt));
} else if (sargs[0] == "dmpfl") {
int pt = selected;
pager.DumpFreeList(pager.getEntry(pt));
} else if (sargs[0] == "pushb") {
int pt = selected;
byte val = Convert.ToByte(sargs[1]);
pager.Push(val,pager.getEntry(pt));
} else if (sargs[0] == "pushi") {
int pt = selected;
int val = Convert.ToInt32(sargs[1]);
pager.Push(val,pager.getEntry(pt));
} else if (sargs[0] == "pushui") {
int pt = selected;
uint val = Convert.ToUInt32(sargs[1]);
pager.Push(val,pager.getEntry(pt));
} else if (sargs[0] == "pushf") {
int pt = selected;
float val = (float)Convert.ToDecimal(sargs[1]);
pager.Push(val,pager.getEntry(pt));
} else if (sargs[0] == "pushs") {
int pt = selected;
string val = String.Join(" ",sargs);
val = val.Substring(val.IndexOf('\'') + 1,val.LastIndexOf('\'') - (val.IndexOf('\'') + 1));
pager.Push(val,pager.getEntry(pt));
} else if (sargs[0] == "popb") {
int pt = selected;
Console.WriteLine(pager.PopByte(pager.getEntry(pt)));
} else if (sargs[0] == "popi") {
int pt = selected;
Console.WriteLine(pager.PopInt(pager.getEntry(pt)));
} else if (sargs[0] == "popui") {
int pt = selected;
Console.WriteLine(pager.PopUInt(pager.getEntry(pt)));
} else if (sargs[0] == "popf") {
int pt = selected;
Console.WriteLine(pager.PopFloat(pager.getEntry(pt)));
} else if (sargs[0] == "pops") {
int pt = selected;
Console.WriteLine(pager.PopString(pager.getEntry(pt)));
} else if(sargs[0] == "vat") {
uint val = Convert.ToUInt32(sargs[1]);
Console.WriteLine(pager.getVAT(val,pager.getEntry(selected)));
} else if(sargs[0] == "rvat") {
uint val = Convert.ToUInt32(sargs[1]);
Console.WriteLine(pager.reverseVAT(val));
} else if (sargs[0] == "writeb") {
uint addr = Convert.ToUInt32(sargs[1]);
byte val = Convert.ToByte(sargs[2]);
test.Write(addr,val);
} else if (sargs[0] == "writei") {
uint addr = Convert.ToUInt32(sargs[1]);
int val = Convert.ToInt32(sargs[2]);
test.Write(addr,val);
} else if (sargs[0] == "writeui") {
uint addr = Convert.ToUInt32(sargs[1]);
uint val = Convert.ToUInt32(sargs[2]);
test.Write(addr,val);
} else if (sargs[0] == "writef") {
uint addr = Convert.ToUInt32(sargs[1]);
float val = (float)Convert.ToDecimal(sargs[2]);
test.Write(addr,val);
} else if (sargs[0] == "writes") {
uint addr = Convert.ToUInt32(sargs[1]);
string val = sargs[2];
test.Write(addr,val);
} else if (sargs[0] == "exit") {
break;
}
} catch (IndexOutOfRangeException) {
Console.WriteLine("Please select a page table!");
} catch (Exception ex) {
Console.WriteLine("Error: " + ex.Message);
}
}
*/
}
