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A
ll
and more about Sharp PC-1500
at
http://www.PC-1500.info
2-4.
LH5801
instructions
2-4-1. Outline
·24
'fh
is
sec
tion
dea
ls
\Vith
func
ti
on of
each
ins
tr
u
cti
on
.
AOC
l Instruction name
(
Funclional descriplion)
•Format
AOC RL
T Operand
•Operation
A + [operand]
L Symbol
(EX)
( Example )
+ C - - > A
L symbo
iL
Symbol
Symbols
used in discussing
operand,
function
, and
operation
A :
Con
tents
of
the accumulat
or
(8 bits)
X
L.
:
Con
tents of the low order 8 bits
of
X
reg
\' I.:
(.'on
t
cn
ts
of
th
t.:
)()
\\' or
dr.:r
8
t>
its of \'
reg
U I.:
C.:
<H
ll
t:n
ts
of
the:
]<,,,
. or
dc:
r X bits
oi
lJn:g
(RI.
re
1>r
ese
nts either
of
XI.. YI..
or
U
l..)
XH:
Contents
or
the high order 8 bits
of
Xr
cg
YH
:
Comcm
s of the
hi
gh
order
8 bits
of
Yr
cg
UH: Contents
or
the high or
der
8 bits
of
Urcg
(R
M r
qir
escms e
it
her
of
XH. \' II. o r U
ll.
)
Xr
eg
:
Co111
e
n1~
of
lh
r X rcgisia ( 16
b
i •
~)
\"
reg
:
c
·
o
nt
e
nt ~
of
th
e y·
reg
is
ter ( 16 h
it
s)
Ur
cg:
C o
nt
c
nt
s of the lJ r
egis
t
er
{ I
(>
bits)
(Rn:g repr
esen
ts either
of
Xreg.
Yr~g.
or
Ureg.)
P:
Co
ntcms
of
the
pro
gram
co
un1cr ( 16 bils)
PL:
<..«
>n
ll
'nts
of
IO\\' order 8
b
i l
~
of
lhc prograrn counter
Pf-I
:
(
~
o
ru
e
rHs
of high order 8 hi
ts
()
f the prog
ran1
counlcr
S: ( '
·o
n
1c
11
ts
of the
st
ack poinl
c.:
r (
16
hits)
SI.: Con
te
n
ts
(l f l
o\
v
o
rd er
~
bi
ts
of
the s
tu
ck
p
oi
n1
cr
S
ii:
Co
nten
ts
of
high order 8 bits
of
the
st
ack po
in
ter
(Rr
cg):
Co
nt
ents
of
the rncmOr\' rcp
r,
·scnt
cd
by
Rr
eg
(
ac
ce
sse
d with M lO)
r!
(R
rq~)
:
Co
ntents
of
the memo
ry
rcprcscn1cd b
l'
Rrcg (acc
ess
ed
with M [ I)
(r1'>)
:
Co
nt
e
nt
s o
ft
he mcmor)' repre
se
nted by 16
bi
ts
of
ab (acce
sse
d by MEO): '" here a
r
e p
r
l~se
nts
high
<>r
dcr 8 bits
f>f
th
e:
address and
I>
IO
\\. ord
l"r
8
b
i
t
~
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