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"""Specifies the MemMode enum
"""

from enum import Enum


class MemMode(Enum):
    TIMING = 1
    ATOMIC = 2
    ATOMIC_NONCACHING = 3


def mem_mode_to_string(mem_mode: MemMode) -> str:
    """
    Returns the string form of the mem_mode, compatible with the gem5
    simulator.

    :returns: The string form of the mem_mode
    """
    if mem_mode == MemMode.TIMING:
        return "timing"
    elif mem_mode == MemMode.ATOMIC:
        return "atomic"
    elif mem_mode == MemMode.ATOMIC_NONCACHING:
        return "atomic_noncaching"
    else:
        return NotImplementedError