public static int UInstruction(string[][] programTextArray, ref int i, ref int j, out string label,
Dictionary <uint, ExeCommand> commandsToExe)
{
var commandName = programTextArray[i][j];
int instructionLayout = UInstructionOpcode[commandName];
var args = Healper.GetArgs(programTextArray, ref i, ref j, 2);
commandsToExe[commandsToExe.Last().Key] = new ExeCommand {
Args = args, Instraction = commandName, Line = i
};
label = null;
if (!registersOpcode.ContainsKey(args[0]))
{
throw new SimulatorException {
ErrorMessage = $"'unknown '{args[0]}' register for U type command"
}
}
;
if (int.TryParse(args[1], out int number))
{
instructionLayout |= number << 12 | registersOpcode[args[0]] << 7;
commandsToExe[commandsToExe.Last().Key].Args[1] = number.ToString();
}
else
{
label = args[1];
}
return(instructionLayout);
}
public static int JInstruction(string[][] programTextArray, ref int i, ref int j,
Dictionary <uint, ExeCommand> commandsToExe)
{
var commandName = programTextArray[i][j];
int instructionLayout = JInstructionOpcode[commandName];
var args = Healper.GetArgs(programTextArray, ref i, ref j, commandName == "jal" ? 2 : 1);
commandsToExe[commandsToExe.Last().Key] = new ExeCommand {
Args = args, Instraction = commandName, Line = i
};
if (int.TryParse(args[commandName == "jal" ? 1 : 0], out int number))
{
instructionLayout |= (commandName == "jal" ? registersOpcode[args[0]] << 7 : 0);
commandsToExe[commandsToExe.Last().Key].Args[commandName == "jal" ? 1 : 0] = number.ToString();
}
else
{
throw new SimulatorException {
ErrorMessage = $"'bad offset for j command"
};
}
var bits1to10 = number & Convert.ToInt32("1111111111", 2);
var bits12to19 = (number & Convert.ToInt32("1111111100000000000", 2) >> 11);
var bit11 = (number & Convert.ToInt32("10000000000", 2) >> 10);
var bit20 = (number & Convert.ToInt32("00000000000000000001", 2) >> 18);
instructionLayout |= (bits12to19 << 12) | (bit11 << 20) | (bits1to10 << 21) | (bit20 << 31);
return(instructionLayout);
}
public static int StoreInstruction(string[][] programTextArray, ref int i, ref int j,
Dictionary <uint, ExeCommand> commandsToExe)
{
var commandName = programTextArray[i][j];
int instructionLayout = SInstructionOpcode[commandName];
var args = Healper.GetArgs(programTextArray, ref i, ref j, 2);
if (!Healper.IsComandWithOffset(args[1], out string register, out int offset))
{
throw new SimulatorException {
ErrorMessage = $"'unknown store format command"
}
}
;
if (!registersOpcode.ContainsKey(register))
{
throw new SimulatorException {
ErrorMessage = $"'unknown '{register}' register for load command"
}
}
;
commandsToExe[commandsToExe.Last().Key] = new ExeCommand
{
Args = new List <string> {
args[0], register, offset.ToString()
}, Instraction = commandName, Line = i
};
instructionLayout |= registersOpcode[args[0]] << 20 | registersOpcode[register] << 15;
instructionLayout |= (offset & Convert.ToInt32("111111100000", 2) << 20) |
(offset & Convert.ToInt32("11111", 2) << 7);
return(instructionLayout);
}
public static int ShamtIInstruction(string[][] programTextArray, ref int i, ref int j,
Dictionary <uint, ExeCommand> commandsToExe)
{
var commandName = programTextArray[i][j];
int instructionLayout = IInstructionOpcode[commandName];
var args = Healper.GetArgs(programTextArray, ref i, ref j);
if (!registersOpcode.ContainsKey(args[0]) || !registersOpcode.ContainsKey(args[1]))
{
throw new SimulatorException {
ErrorMessage = $"unknown register"
}
}
;
instructionLayout |= registersOpcode[args[0]] << 7 | registersOpcode[args[1]] << 15;
commandsToExe[commandsToExe.Last().Key] = new ExeCommand {
Args = args, Instraction = commandName, Line = i
};
if (int.TryParse(args[2], out int number))
{
instructionLayout = instructionLayout | ((number << 25) >> 5);
}
else
{
throw new SimulatorException {
ErrorMessage = $"unknown shamit"
}
};
return(instructionLayout);
}
public static int BInstruction(string[][] programTextArray, ref int i, ref int j,
Dictionary <uint, ExeCommand> commandsToExe)
{
var commandName = programTextArray[i][j];
int instructionLayout = BInstructionOpcode[commandName];
var args = Healper.GetArgs(programTextArray, ref i, ref j);
commandsToExe[commandsToExe.Last().Key] = new ExeCommand {
Args = args, Instraction = commandName, Line = i
};
if (!registersOpcode.ContainsKey(args[0]) || !registersOpcode.ContainsKey(args[1]))
{
throw new SimulatorException {
ErrorMessage = $"unknown register"
}
}
;
instructionLayout |= registersOpcode[args[0]] << 15 | registersOpcode[args[1]] << 20;
if (int.TryParse(args[2], out int number))
{
instructionLayout = instructionLayout | ((number << 25) >> 5);
}
else
{
throw new SimulatorException {
ErrorMessage = $"unknown shamit"
}
};
var bits1to4 = number & Convert.ToInt32("1111", 2);
var bits5to11 = (number & Convert.ToInt32("1111110000", 2) >> 4);
var bit11 = (number & Convert.ToInt32("10000000000", 2) >> 10);
var bit12 = (number & Convert.ToInt32("100000000000", 2) >> 11);
instructionLayout |= (bits1to4 << 8) | (bit11 << 7) | (bits5to11 << 25) | (bit12 << 30);
return(instructionLayout);
}
public static int RInstruction(string[][] programTextArray, ref int i, ref int j,
Dictionary <uint, ExeCommand> commandsToExe)
{
var commandName = programTextArray[i][j];
int instructionLayout = RInstructionOpcode[commandName];
var args = Healper.GetArgs(programTextArray, ref i, ref j);
commandsToExe[commandsToExe.Last().Key] = new ExeCommand {
Args = args, Instraction = commandName, Line = i
};
if (!registersOpcode.ContainsKey(args[0]) || !registersOpcode.ContainsKey(args[1]) ||
!registersOpcode.ContainsKey(args[2]))
{
throw new SimulatorException {
ErrorMessage = $"unknown register"
}
}
;
instructionLayout = instructionLayout | registersOpcode[args[0]] << 7 |
registersOpcode[args[1]] << 15 | registersOpcode[args[2]] << 20;
return(instructionLayout);
}
public static int IInstruction(string[][] programTextArray, ref int i, ref int j, out string label,
Dictionary <uint, ExeCommand> commandsToExe)
{
var commandName = programTextArray[i][j];
int instructionLayout = IInstructionOpcode[commandName];
if (commandName == "jalr")
{
label = null;
var args = Healper.ParseJalr(programTextArray, ref i, ref j);
commandsToExe[commandsToExe.Last().Key] = new ExeCommand
{
Args = args, Instraction = commandName, Line = i
};
if (!Healper.IsComandWithOffset(args[1], out string register, out int offset))
{
throw new SimulatorException {
ErrorMessage = $"unknown load format command"
}
}
;
if (!registersOpcode.ContainsKey(register))
{
throw new SimulatorException {
ErrorMessage = $"unknown '{register}' register for load command"
}
}
;
instructionLayout |= registersOpcode[args[0]] << 7 | registersOpcode[register] << 15 | offset << 20;
return(instructionLayout);
}
else
{
var args = Healper.GetArgs(programTextArray, ref i, ref j);
if (!registersOpcode.ContainsKey(args[0]) || !registersOpcode.ContainsKey(args[1]))
{
throw new SimulatorException {
ErrorMessage = $"unknown register"
}
}
;
instructionLayout |= registersOpcode[args[0]] << 7 | registersOpcode[args[1]] << 15;
commandsToExe[commandsToExe.Last().Key] = new ExeCommand
{
Args = args, Instraction = commandName, Line = i
};
if (int.TryParse(args[2], out int number))
{
instructionLayout = instructionLayout | number << 20;
label = null;
}
else
{
label = args[2];
}
return(instructionLayout);
}
}