Sharp PC-1500 - Page 44

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2-4-6. Rotate and shift instructions
@ ROL (ROtate Left)
Th e a ccumu la wr contents are rotated left through the fl ag C.
•F ormat
R OL
•O peration
- ----- -
A
(EX) R OL
I t 1 Io 1 o
1 1
I
Execute
1 o 1 ~ fo] I 1
0 1 1 1
Carry
A
Carry
A
@ ROR (ROtate Right)
The accumulator contents are rotated right through the flag C.
• Format •Operation
ROR
y
...
(E X) ROR
0
I 1
I
0 0
1
0 0
o l E~e lol
Carry
A
Carry
@ SHL (SHi ft Left)
The comcnts of the accumul ator ar c shifted left.
• Format
SHL
(EX)
l*I
Carry
SHL
[ 1
•Op eration
0 ~ [
,_
0 0 1 1 1
0
1 i E~e ~
A
Ca rr y
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... ... ..... ...
A
Io
1 1
0 0
A
-
...
-
A
lo
0
1 I 1
A
... ...
1 0
...
<-
0
I
~
ol
r
h 0 ..
o I
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