All and more about Sharp PC-1500 at http:/lwww.PC-1500.info
ll(ab):
Co
nt
ents
of
the m
em
or
y repre
se
n
te
d by 16 bits of ab
(accessed
by
ME
I): where a
repre
se
nt
s hi
gh
order 8 bits of the addr
ess
and b l
ow
or
der 8 bi
ts
i: 8-bit immediate data
i.
j:
16
-bit im
me
diate data of which high order 8 bits are represe
nt
ed
by i and l
ow
order 8 bits by i
C· Carry flag
I
E:
Interrupt enable flag
Z:
Zero flag
V:
Ove
r
flow
fl
ag
H
· Ha
lf
ca
rry flag
Data
fl
ow
dir
ec
tion
/\
AND
\/
()
(~
EB
Exclusi
ve
OR
+ ADD
SU
BTRA
CT
2-4-2. Add, subtract, and logical instructions
© ADC (ADd wi
th
Carry)
Either the contents of t
he
internal r
egis
ter or external memory are 8-bit added with the
accumula
to
r including carry,
and
i
ts
res
ult
is stored in
the
accumulator.
C. H. Z. and V may change.
•For
mat
ADC
RL
J\DC
RH
AD
C (Rreg)
A
DC
II
( R
re
g)
ADC
(a
b)
AD
C ll(a
b)
(
EX)
ADC
XL
• Operation
A + [operand] + C -
J\
Va
lue of the XL regis
te
r is added to the accumulator. providing
"C
= O".
A=
[
0
0 0 0 0 0
o
l
~e
A= I 0 0 1 1 0 1 0
i I
XL= I 0
0 0 0
i I
C=
O,
H= O , Z= O , V= O
C= O
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not
sell this PDF !!!
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