Sharp PC-1500 Technical Reference Manual page 40

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®
LOX (LoaO Xreg)
The contents
or
the R register. stack pointer. or
program
counter a rc transfor rcd to the
X
register.
No
change
takes
place in
flags.
• Forrnat
LDX Rreg
I.DX S
I.DX P
(EX) LOX S
•Operation
[Operand) - Xn:g
£xecute
S = 4700H - - · X••g= 47001i
@ STA (STore Ace)
The conccms of
the accu111ulator arc transfcrrccl
w
the
RL
rcgislcr.
R II
register. or the
externa l
n1c1nory.
No
change ta kes place in
flags.
• Fonnot"
ST/\ RL
ST/\ RH
ST/\
( Rrcg)
ST/\ #( Rrcg)
ST1\ (ah)
STA ~(ab)
(EX) STA XL
• Operation
A - (opcmnd)
A-
L o
_ 0_ 1_ I O
o
1 I
I
Execu!• XL=
Jo
O 1 I 0
o
1 I
@
SOE (Store and OEcrement)
T he contents
or
the accumulator are tr:m>fcrrcd
10
the external memory ( Rrcg). thcn
"'I"' is decremented from Rrcg.
~o
change
tak~
place in
nag.'\.
• l,.orn1at
S DE
Rrcg
(EX) SOE Vreg
A=
~
t I t t
Yreg ~700H
• 0 1 1cration
A - ·
( Rreg)
Rrcg - I -
Rr<.' g
1
11
Contents
= f()
0 I
t
I 1 I
0
_'.J Exccutcot 4700H
I
v - - -
~
¥1cg= 46Ff ll
35
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