Difference between revisions of "PM Opc RORC"

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m (Spelling correction)
(RORC = Rotate Right through Carry)
 
(One intermediate revision by one other user not shown)
Line 14: Line 14:
 
|12
 
|12
 
|-
 
|-
|CE 9A
+
|CE 9A nn
 
|RORC [N+#nn]
 
|RORC [N+#nn]
 
|20
 
|20
Line 54: Line 54:
 
  ; A = 0x04
 
  ; A = 0x04
 
  ; F = (Carry=0)
 
  ; F = (Carry=0)
  RORC A
+
  '''RORC A'''
 
  ; A = 0x02
 
  ; A = 0x02
 
  ; F = (Zero=0):(Carry=0):(Sign=0)
 
  ; F = (Zero=0):(Carry=0):(Sign=0)
Line 60: Line 60:
 
  ; B = 0x45
 
  ; B = 0x45
 
  ; F = (Carry=1)
 
  ; F = (Carry=1)
  RORC B
+
  '''RORC B'''
 
  ; B = 0xA2
 
  ; B = 0xA2
 
  ; F = (Zero=0):(Carry=1):(Sign=0)
 
  ; F = (Zero=0):(Carry=1):(Sign=0)
Line 66: Line 66:
 
  ; B = 0x84
 
  ; B = 0x84
 
  ; F = (Carry=0)
 
  ; F = (Carry=0)
  RORC B
+
  '''RORC B'''
 
  ; B = 0x42
 
  ; B = 0x42
 
  ; F = (Zero=0):(Carry=0):(Sign=0)
 
  ; F = (Zero=0):(Carry=0):(Sign=0)
Line 72: Line 72:
 
  ; [HL] = 0x01
 
  ; [HL] = 0x01
 
  ; F = (Carry=0)
 
  ; F = (Carry=0)
  RORC [HL]
+
  '''RORC [HL]'''
 
  ; [HL] = 0x00
 
  ; [HL] = 0x00
 
  ; F = (Zero=1):(Carry=1):(Sign=0)
 
  ; F = (Zero=1):(Carry=1):(Sign=0)
Line 78: Line 78:
 
  ; [HL] = 0x01
 
  ; [HL] = 0x01
 
  ; F = (Carry=1)
 
  ; F = (Carry=1)
  RORC [HL]
+
  '''RORC [HL]'''
 
  ; [HL] = 0x80
 
  ; [HL] = 0x80
 
  ; F = (Zero=0):(Carry=1):(Sign=1)
 
  ; F = (Zero=0):(Carry=1):(Sign=1)
  
 
[[PM_InstructionList|'''« Back to Instruction set''']]
 
[[PM_InstructionList|'''« Back to Instruction set''']]

Latest revision as of 12:52, 27 March 2010

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)

« Back to Instruction set