Atmel C51 Handbuch Seite 32

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Seitenansicht 31
The 8051 Instruction Set
Atmel 8051 Microcontrollers Hardware Manual 1-30
4316E–8051–01/07
CJNE A,#data,rel
Bytes: 3
Cycles: 2
Encoding: 1 0 1 1 0 1 0 0 immediate data rel. address
Operation: (PC) (PC) + 3
IF (A) < > data
THEN
(PC) (PC) + relative offset
IF (A) < data
THEN
(C) 1
ELSE
(C) 0
CJNE R
n
,#data,rel
Bytes: 3
Cycles: 2
Encoding: 1 0 1 1 1 r r r immediate data rel. address
Operation: (PC) (PC) + 3
IF (R
n
) < > data
THEN
(PC) (PC) + relative offset
IF (R
n
) < data
THEN
(C) 1
ELSE
(C) 0
CJNE @R
i
,data,rel
Bytes: 3
Cycles: 2
Encoding: 1 0 1 1 0 1 1 i immediate data rel. address
Operation: (PC) (PC) + 3
IF ((R
i
)) < > data
THEN
(PC) (PC) + relative offset
IF ((R
i
)) < data
THEN
(C) 1
ELSE
(C) 0
Seitenansicht 31
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