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Sharp PC-1500 - PC-1500 RAM Map and Memory Organization; LH5801 MPU Signal Description and Features

Sharp PC-1500
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-1500 at http
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TABLE
OF
CONTENTS
Page
An
Introd
uc
tory
No
te
. . . . . . . . . . . . . . . . . . . . . . . . • • . . . . . . . . . . . . . . 1
Opera
tional Note
s.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • • . . . . . . . 2
PC-1
500
Spoecificatlons .
...•..•
..
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.••
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,
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, .
...
3
Table
of
Cont
ents
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, . . . . 4
0.
Instant
Programming
....•..
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....
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. , . . . . . . . . . . . . . . . . . . 8
A. Example 1 . . • • . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
B. E
xa
mp
le 2 . . . . . . . . . . . . . • • . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
I.
Getting
Acquainted
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11
A. ON
and
OFF
keys
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12
B.
Alphabetic
keys
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. 12
C. Num
er
ic keys
and
Arithmet
ic
Operation
keys .
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•.
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12
0.
SHIFT
k
ey
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,
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12
E.
Lower· case Letters
and
the
SMALL
key
.
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12
F.
The
Display . .
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•.•
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13
G.
The
Cursor
and
the
Prompt
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13
H. Clear
ke
y
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13
I.
ENTER
key
..
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.
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•.•
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.•.•••.••
.•••.
.•
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•.
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13
J.
Error
Messages .
•....
. . . .
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••
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•..••.
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13
K.
Battery
Function
Indication
...
.
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..•.•
. . .
14
II.
Taking
the
Plunge
..•
.
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15
A.
MODEkey
. .
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. 15
B.
Simple Calculations
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15
C. Serial Calculations
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16
D. Calculations
with
Negative Numbers
•.
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16
E.
Compound
Cal
cu
l
at
ions
.•.•
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.
17
F.
Use
ol
Parentheses . .
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.
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.
.....
•..•.•
.•
.
.•.•.
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•.•....
.
17
G. Logical
Compa
risons
and
lneQUalities
.....
.....•.
. .
.•.•
. .
••..
.
.....•.
18
H.
Editing
Keys
and
Funct
ions
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. . . 19
H
.1. L
eft
Arrow/OE
Lete
Key
...
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19
H.2.
Ri1
1h
t
Arrow/INSert
Key
...
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20
H.3. Recall
Fun
c
tion
.....
....
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,
•...•.
21
I.
Variables . . .
..
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~
,
.
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21
J.
We
Pause
••
, .
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. . . . 24
SUMMARY
..•
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24
Ill
. T
he
Mysterious
(?)
Art
of Programming .
.. ..
.
••.••.
.
....••..
..•....
...
26
F
oreword
. . .
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26
A.
What
Is A Program?
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•.
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....
26
0.
How
Do
I Program? .
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.
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.
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••
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, . . . . . . . . . . . . . . . . . .
•••
..
26
C.
CO
MM
ANDS
vs.
STATEMENTS . .
.•
....
.
.••.•
...•.
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. .
.. ..
27
D. Line
Numbers
..............
..
•.....
. . ,
•.•
,
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.
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.
27
E. Program·line Review
keys
....
."
...•...
, . .
••.....
.
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28
F.
A
Clo.er
Look
At
So
me
Old
Friends .
•...
. .
•.
.
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. .
•.
. . . . . .
..
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.
...
.
29
F.
1.
The
NEW
Comma
nd
.•...
.
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..
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. . .
•..••
•.•
. .
•.
.. . . .
29
4
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