The RLC instruction rotates the eight bits in the accumulator and the one bit in the carry flag left one bit position.
Bit 7 of the accumulator is rotated into the carry flag while the original value of the carry flag is rotated into bit 0 of the accumulator.
Bit 0 of the accumulator is rotated into bit 1, bit 1 into bit 2, and so on.
No other flags are affected by this operation.
RLC A
RLC A ;1 byte 1 cycle