Zilog Z8F0130 Manual do Utilizador descarregar pdf (Página 230)

100

101

eZ8

™

CPU Core

User Manual

UM012820-0810 RRC Instruction

215

RRC

Definition

Rotate Right through Carry.

Syntax

RRC dst

Operation

Description

The destination operand contents along with the Carry (C) flag rotate

right by one bit position. The initial value of Bit 0 replaces the Carry flag,

and the initial value of the Carry flag replaces Bit 7.

Flags

C Set if the bit rotated from the least-significant bit position was 1

(that is, Bit 0 was 1)

Z Set if the result is zero; reset otherwise

S Set if Bit 7 of the result is set; reset otherwise

V Set if an arithmetic overflow occurs; reset otherwise

D Unaffected

H Unaffected

D7 D6 D5 D4 D3 D2 D1 D0

dst

1 2 ... 225 226 227 228 229 230 231 232 233 234 235 ... 313 314

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