Rlca – Zilog Z08470 User Manual
Page 215
UM008007-0715
Z80 Instruction Description
Z80 CPU
User Manual
203
RLCA
Operation
Op Code
RLCA
Operands
None.
Description
The contents of the Accumulator (Register A) are rotated left 1 bit position. The sign bit
(bit 7) is copied to the Carry flag and also to bit 0. 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 7 of Accumulator.
M Cycles
T States
4 MHz E.T.
1
4
1.00
CY
7
0
A
0
0
0
1
1
1
0
0
07