All and more about Sharp PC-1500 at
http
:/lwww.PC
-1500.i
nfo
2-4-4. Transfer and search instructions
@ LOA (LoaD A
ce)
The conlents
of
the
RI
. regi
ste
r.
RH register, or lhc internal memory
ar
e transferred to
the accumulator.
On
ly
the
fl
ag Z change
s.
• Formal
LDA
RL
LD/\
RH
LIJ/\
(Rreg)
LD/\
II( Rreg)
I.DA (ab)
I.DA ll(ab)
(EX)
LOA
XL
• Operation
I Operand J - A
Flag Z
I: when (operand] = 00
II
0:
when (oper
an
d]
-#
00
11
XL=
(££
o 1 o o o o
I
~
xL
~
o
o t o o o o
A=
~
0 t 0 0 0 oJ
z- o
@ LOE (Load and DEcrement)
The contents
of
th
e external memory (R register)
ar
e transferred to lhc accumulator.
th
e
n~
I"
is
decremented from R register.
Only
th
e nag z change
s.
• Formal
l.
DE
R
reg
(E
X)
L
OE
Yr
eg
•O
pe
ration
(Rreg) -
/\
Rreg - I - Rrcg
rlag
z
I: when (Rrcg) =
OOH
0: when (Rreg)-#
OOH
Con
ten
ts - O I O 1 1 O 0 0 A- 0 1 0 1 I 0
001
of
202
AL
, - I
Ex
ecu
te
~
Yreg
=
202
AH
Do not sell this PDF !!!
Yreg
=
2029
H
Z=O
33
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