package mtmc.asm.instructions

import java.util.*

enum class ALUOp(val opCode: Int, val isUnary: Boolean) {
  ADD(0x0000, false),
  SUB(0x0001, false),
  MUL(0x0002, false),
  DIV(0x0003, false),
  MOD(0x0004, false),
  AND(0x0005, false),
  OR(0x0006, false),
  XOR(0x0007, false),
  SHL(0x0008, false),
  SHR(0x0009, false),
  MIN(0x000A, false),
  MAX(0x000B, false),
  NOT(0x000C, true),
  LNOT(0x000D, true),
  NEG(0x000E, true),
  IMM(0x000F, true);

  companion object {
    @JvmStatic
    fun toInteger(instruction: String): Int {
      return valueOf(instruction.uppercase(Locale.getDefault())).opCode
    }

    @JvmStatic
    fun fromInt(opCode: Short): String {
      return entries[opCode.toInt()].name.lowercase(Locale.getDefault())
    }

    @JvmStatic
    fun isALUOp(op: String): Boolean {
      try {
        val aluOp = valueOf(op.uppercase(Locale.getDefault()))
        return true
      } catch (e: IllegalArgumentException) {
        return false
      }
    }
  }
}