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class ErrorLog:
    """
    Class that automatically addresses an error in the error log.
    """

    def __init__(self, ptr_val=None):
        if ptr_val == None:
            self.base_addr = ((readCfgSpaceInt(0x506) - 1)*0x10 + 0x20000)
        elif ptr_val < 0: # a negative pointer value is a relative offset to the tail of the log
                        self.base_addr = ((readCfgSpaceInt(0x506) - 1 + ptr_val) * 0x10 + 0x20000)
        else:
            self.base_addr = (ptr_val*0x10 + 0x20000)

        self.error_code_cache = None
        self.error_data_cache = None