
UM008007-0715 Z80 Instruction Description
Z80 CPU
User Manual
209
RRA
Operation
Op Code
RRA
Operands
None.
Description
The contents of the Accumulator (Register A) are rotated right 1 bit position through the
Carry flag. The previous contents of the Carry flag are copied to bit 7. Bit 0 is the least-
significant bit.
Condition Bits Affected
S is not affected.
Z is not affected.
H is reset.
P/V is not affected.
N is reset.
C is data from bit 0 of Accumulator.
M Cycles T States 4 MHz E.T.
141.00
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