int GetType(unsigned int ins)
{
	struct ins_format instruction;
	memset(&instruction, 0, 4);
	memcpy(&instruction, &ins, 4);

	if(instruction.b26 == 0 && instruction.b27 == 0)
	{
		if(instruction.b25 == 1)
		{
			puts("Data processing, immediate value");

			return INS_DATA_PROCESSING;
		}
		else if(instruction.b25 == 0)
		{
			if(instruction.b4 == 1 && instruction.b5 == 0 && instruction.b6 == 0 && instruction.b7 == 1)
			{
				if(instruction.b24 == 0)
				{
					// multiply
					if(instruction.b23 == 1)
					{
						puts("Long multiply");

						return INS_MULTIPLY_LONG;
					}
					else
					{
						puts("Multiply");

						return INS_MULTIPLY;
					}
				}
				else
				{
					 puts("Swap");

					 return INS_SWAP;
				}
			}
			else
			{
				if(instruction.b22 == 0 && instruction.b7 == 1 && instruction.b4 == 1)
				{
					puts("Halfword Transfer Reg Off");

					return INS_HALFWORD_XFER_REG;
				}
				else if(instruction.b22 == 1 && instruction.b7 == 1 && instruction.b4 == 1)
				{
					puts("Halfword Transfer Imm Off");

					return INS_HALFWORD_XFER_IMM;
				}
				else
				{
					puts("Data processing, register");

					return INS_DATA_PROCESSING;
				}

			}
		}

		if(instruction.b24 == 1)
		{
			if(instruction.b23 == 0 && instruction.b22 == 0 && instruction.b21 == 1 && instruction.b20 == 0)
			{
				puts("Branch exchange");

				return INS_BRANCH_EXCHANGE;
			}
		}

		return 0;
	}
	else if(instruction.b26 == 1 && instruction.b27 == 1)
	{
		if(instruction.b25 == 0)
		{
			puts("Coprocessor data transfer");

			return INS_COPROCESSOR_DATA_XFER;
		}
		else
		{
			if(instruction.b4 == 0)
			{
				puts("Coprocessor data operation");

				return INS_COPROCESSOR_DATA_OP;
			}
			else
			{
				puts("Coprocessor register transfer");

				return INS_COPROCESSOR_REG_XFER;
			}
		}

		if(instruction.b24 == 1 && instruction.b25 == 1)
		{
			puts("Software interrupt");

			return INS_SOFTWARE_INTERRUPT;
		}

		return 0;

	}
	else if(instruction.b26 == 0 && instruction.b27 == 1)
	{
		if(instruction.b25 == 1)
		{
			puts("Branch");

			return INS_BRANCH;
		}
		else
		{
			puts("Load/Store multiple");

			return INS_STORELOAD_MULT;
		}
	}
	else if(instruction.b26 == 1 && instruction.b27 == 0)
	{
		if(instruction.b25 == 1)
		{
			puts("Load/Store immediate value");

			return INS_STORELOAD_BYTEWORD;
		}
		else
		{
			puts("Load/Store register");

			return INS_STORELOAD_BYTEWORD;
		}
	}
	else
	{
		puts("Unknown");

		return INS_UNKNOWN;
	}

	return INS_UNKNOWN;
}