Sharp CE-150 - Page 275

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® LOX (LoaO Xreg)
Th e contents or the R register. stack pointer. or program co unt er arc tr an s fo rrcd to the
X register.
No change tak es place in fl ags .
• Fo rrn at
LDX Rreg
I.DX S
I.DX
P
(EX) LOX S
•O pera ti on
[Operand) - Xn:g
£xecute
S= 4700H - - · X• •g = 470 01i
@ STA (STore Ace)
T he c onccm s of the acc u111ulat or arc transfcrr ccl w the RL rcgislcr. R II re gister. or the
exter na l n1c1n ory.
No cha n ge takes place in flag s.
• Fo nn ot"
ST/\ RL
S T/\ RH
ST /\ (Rrcg)
ST /\ #(Rrcg)
ST1\ (a h)
STA ~(ab)
( EX ) STA XL
• Operation
A - (opcmnd)
A- Lo _0_ 1_ I O o 1 I I Execu!• XL= Jo O 1 I 0 o 1 I
@ SOE (Store and OE crement)
The con t en ts or the accumul at or are tr:m>fcrrcd 10 the external memory (Rrcg). thcn
"'I"' is decremented from Rrcg.
~o ch an ge tak ~ pla ce in nag.'\.
• l ,. orn1at
S DE Rr cg
(EX) SO E V reg
A=
~ t I t t
Yreg ~700H
• 0 11cration
A - · ( Rr eg)
R rcg - I - Rr <.' g
1 11 C on tents = f() 0 I t I 1 I 0
_'.J Exccutcot 47 00 H I v --- ~
¥1cg= 46 Ff ll
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