Registers and releases, respectively, a callback handler for an IRQ line. The registration can be exclusive or Shared.
Based on the nature of exclusive or operation, deduce the forming procedure for Grey one and analyze the application of exclusive or operation on the check code.
Exclusive or means that if the two operand bits are different the result is 1, otherwise the result is 0. The following table shows the results of an exclusive or operation.
Take the first (unchanged) block and exclusive or each of its bits with the corresponding bits of the second (reversed) block.
None, one, or all of these files can exist, and it's up to the application to treat the files as mutually exclusive or incremental.
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