Sharp CE-150 - Page 281

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@ ORR (Digit Rotate Right)
Rig hi ro!ation t ake s between 1he accumula1or and the external mem<>ry (Xreg) or
#(Xrcg) in unit of digit (4 bits).
In mher words. 1he low orde r 4 b i1 s of 1h e external memory a rc moved 101hc low order
4 bi1s of 1h e accumul ator . the l ow order 4 bils of the accumul ator arc mov ed 10 the high
or
der 4 b i1s of the externa l memory. 1he high order 4 bi 1s of 1he ex1ernal memory ar c
moved 10 1h c low or der 4 b i1 s of the ex1ernal memory. and 1h c high order 4 bits of the
external n1crnory arc n1ovcd to t he high ordcr4 bi ts of the accun1ulat or n1cn1or y at all
ti n1cs .
No ch ange takes place in !lags.
• Format
()RR (Xrcg)
DRR #(Xreg)
( EX ) D AR (Xreg)
Xrcg = 4 700 H
• Operation
A
A= I t 1 0 0 0 0 0 t I
Executt
I
I
1- · =i
_J
M cmo ty ((X<e g) O< e(Xrcg)J
A = ~I o __ o_o_ o. _o _ 1 _ o ~I
Contents = I 0 I 0 0 0 0 1 0 I
ct 4700H .
Ccnte<lt$ _ I 0 0 0 t 0 t 0 0 I
of 4700H -
® AEX (EXchange Ace)
The high order
4 bits of the accumul ator are swapped with the low ord er 4 bits.
No cha nge takes place in flags.
•Format
AEX
(EX) AEX
•Operation
f
t
A
I
I
Exe cute I
A= t_ I 0 0 t 0 t 0 . --> A= . 1 0 t 0 t
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1 0 0 ']
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