public ChronalInstructionSample(int[] registersBefore, int[] registersAfter, ChronalInstruction instruction)
{
if (registersBefore.Length != 4)
{
throw new ArgumentException("Parameter must be an array of length 4.", nameof(registersBefore));
}
if (registersAfter.Length != 4)
{
throw new ArgumentException("Parameter must be an array of length 4.", nameof(registersAfter));
}
if (instruction == null)
{
throw new ArgumentException("Parameter must not be null.", nameof(instruction));
}
this.registersBefore = registersBefore;
this.registersAfter = registersAfter;
this.instruction = instruction;
}
public (int InstructionPointer, int[] Register) Execute(int[] registersBefore, ChronalInstruction instruction, int instructionPointer = 0)
{
if (IPReg >= 0)
{
registersBefore[IPReg] = instructionPointer;
}
var registersAfter = new int[registersBefore.Length];
registersBefore.CopyTo(registersAfter, 0);
var opCode = Translation[instruction.OpCode];
var a = instruction.A;
var b = instruction.B;
var c = instruction.C;
registersAfter[c] = opCode switch
{
0 => registersBefore[a] + registersBefore[b], // addr
1 => registersBefore[a] + b, // addi
2 => registersBefore[a] * registersBefore[b], // mulr
3 => registersBefore[a] * b, // muli
4 => registersBefore[a] & registersBefore[b], // banr
5 => registersBefore[a] & b, // bani
6 => registersBefore[a] | registersBefore[b], // borr
7 => registersBefore[a] | b, // bori
8 => registersBefore[a], // setr
9 => a, // seti
10 => a > registersBefore[b] ? 1 : 0, // gtir
11 => registersBefore[a] > b ? 1 : 0, // gtri
12 => registersBefore[a] > registersBefore[b] ? 1 : 0, // gtrr
13 => a == registersBefore[b] ? 1 : 0, // eqir
14 => registersBefore[a] == b ? 1 : 0, // eqri
15 => registersBefore[a] == registersBefore[b] ? 1 : 0, // eqrr
_ => registersAfter[c]
};
if (IPReg >= 0)
{
instructionPointer = registersAfter[IPReg];
}
return(instructionPointer + 1, registersAfter);
}