public void RefreshSimulation(SimulatorComms comms)
{
if (this.simulated_program != null)
{
long ticks = DateTime.Now.Ticks - this.start_time;
long milliseconds = ticks / TimeSpan.TicksPerMillisecond;
int sim_time = (int)milliseconds;
int size = this.simulated_program.contents.Count();
if ((this.program_time + 120000) < sim_time)
{
// clock skew - reset the program
this.program_time = 0;
this.start_time = DateTime.Now.Ticks;
this.program_counter = 0;
}
while (this.program_time < sim_time)
{
// run forwards until the program time matches the simulator time
if (this.program_counter >= size)
{
this.program_counter = 0; // loop at end of program
}
Instruction inst = this.simulated_program.contents[this.program_counter];
int end_time = inst.getTime() + this.program_time;
bool commit = true;
switch (inst.t)
{
case InstructionType.InstructionSetDisplay:
this.setDisplay(inst.value);
break;
case InstructionType.InstructionTransition:
if (end_time < sim_time)
{
// Running behind. Apply this instruction immediately.
this.r = inst.r;
this.g = inst.g;
this.b = inst.b;
this.setColour(this.r, this.g, this.b);
}
else
{
// Transition
int rS = this.r, gS = this.g, bS = this.b;
int rT = inst.r, gT = inst.g, bT = inst.b;
int tD = (int)(sim_time - this.program_time);
int tI = (int)(end_time - this.program_time);
byte r = linear(rS, rT, tD, tI);
byte g = linear(gS, gT, tD, tI);
byte b = linear(bS, bT, tD, tI);
this.setColour(r, g, b);
commit = false;
}
break;
default:
break;
}
if (commit)
{
// Go to next instruction
this.program_counter++;
this.program_time = end_time;
}
else
{
// Need to wait for this instruction to complete
this.programState.Text = "Inst " + (this.program_counter + 1) + " of " + size + ": "
+ inst.ToString();
break;
}
}
}
while (true)
{
Command c = comms.SimulatorGetCommand();
Reply r;
switch (c.t)
{
case CommandType.CommandNone:
return;
case CommandType.CommandConnect:
r = new Reply();
r.red = r.green = r.blue = 0x20;
r.t = ReplyType.ReplyConnected;
comms.SimulatorSendReply(r);
for (int i = 0; i < Comms.num_programs; i++)
{
r = new Reply();
r.program_number = i;
r.program_bytes = readProgram(i);
r.t = ReplyType.ReplyProgram;
comms.SimulatorSendReply(r);
}
r = new Reply();
r.errorCode = "Simulated mode";
r.t = ReplyType.ReplyMsg;
comms.SimulatorSendReply(r);
this.display.Text = "C";
this.Show();
break;
case CommandType.CommandSetColour:
this.simulated_program = null;
this.setColour(c.red, c.green, c.blue);
this.r = c.red;
this.g = c.green;
this.b = c.blue;
this.programState.Text = "";
break;
case CommandType.CommandGetColour:
this.simulated_program = null;
r = new Reply();
r.red = this.r; r.green = this.g; r.blue = this.b;
r.t = ReplyType.ReplyGotColour;
comms.SimulatorSendReply(r);
break;
case CommandType.CommandSetDisplay:
this.simulated_program = null;
setDisplay(c.value);
this.programState.Text = "";
break;
case CommandType.CommandExit:
this.simulated_program = null;
break;
case CommandType.CommandRunEEPROMProgram:
this.simulated_program = new InstructionList(readProgram(c.value));
startProgram(comms, "" + c.value);
break;
case CommandType.CommandRunTemporaryProgram:
this.simulated_program = new InstructionList(c.program_bytes);
startProgram(comms, "(temporary)");
break;
case CommandType.CommandSaveEEPROMProgram:
writeProgram(c.program_number, c.program_bytes);
r = new Reply();
r.t = ReplyType.ReplyProgram;
r.program_number = c.program_number;
r.program_bytes = readProgram(c.program_number);
comms.SimulatorSendReply(r);
r = new Reply();
r.errorCode = "Written to simulated EEPROM";
r.t = ReplyType.ReplyMsg;
comms.SimulatorSendReply(r);
break;
}
}
}
private void startProgram(SimulatorComms comms, string name)
{
Reply r;
this.start_time = DateTime.Now.Ticks;
this.program_time = 0;
this.program_counter = 0;
if (this.simulated_program.contents.Count() == 0)
{
r = new Reply();
r.errorCode = "Program " + name + " contains no instructions.";
r.t = ReplyType.ReplyMsg;
comms.SimulatorSendReply(r);
this.simulated_program = null;
}
else if (this.simulated_program.end_time <= 0)
{
r = new Reply();
r.errorCode = "Program " + name + " has no running time.";
r.t = ReplyType.ReplyMsg;
comms.SimulatorSendReply(r);
this.simulated_program = null;
}
else
{
r = new Reply();
r.errorCode = "Program " + name + " simulating...";
r.t = ReplyType.ReplyMsg;
comms.SimulatorSendReply(r);
}
this.programState.Text = r.errorCode;
}
