PM Opc RORC

RORC = Rotate Right through Carry

Hex	Mnemonic	Cycles
CE 98	RORC A	12
CE 99	RORC B	12
CE 9A nn	RORC [N+#nn]	20
CE 9B	RORC [HL]	16

Execute

A       = Register A
B       = Register B
[N+#nn] = Memory: (I shl 16) or (N shl 8) or #nn
[HL]    = Memory: (I shl 16) or HL

; RORC Ds
;
; Ds = Source/Destination

Ds = (Ds SHR 1) OR (Carry SHL 7)

Description

"8-Bits Destination" bits are rotated right by 1 through Carry.

Conditions

Zero: Set when result is 0

Carry: Set when old bit 0 is 1

Sign: Set when bit 7 of the result is 1

Overflow remain unchanged

Examples

; A = 0x04
; F = (Carry=0)
RORC A
; A = 0x02
; F = (Zero=0):(Carry=0):(Sign=0)

; B = 0x45
; F = (Carry=1)
RORC B
; B = 0xA2
; F = (Zero=0):(Carry=1):(Sign=0)

; B = 0x84
; F = (Carry=0)
RORC B
; B = 0x42
; F = (Zero=0):(Carry=0):(Sign=0)

; [HL] = 0x01
; F = (Carry=0)
RORC [HL]
; [HL] = 0x00
; F = (Zero=1):(Carry=1):(Sign=0)

; [HL] = 0x01
; F = (Carry=1)
RORC [HL]
; [HL] = 0x80
; F = (Zero=0):(Carry=1):(Sign=1)

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