D.
Ilemonstnti
on
DfIk,ue
The
optional
Demonstration
Diskette
contains
several
programs
which
ciemonstrate a
few
of
the advanced oapabUities of
the
Vector 4.
JI..AXJAa
COM
1 INVADD.S
COH
1 SHAXI
COH
1 otalU.LO
COH
DEHQ
Cot! 1
DEHQ
SYS.
. .
. These
two
files demonstrate some
of
the
grapbJes that are
ava11able
to
sldD.ed
propoammets
usiIJI the Vec.tor·
4.
By
entering
the
conunand
J)BO
[B.ETl1lUt],
the
DEMO.COM
program accesses c:Hfferent portions of
the
DEMO.sys
fne
to
DJustrate
the
detailed graphics capabWties
of
the Vector 4.
BT.AKtTACLCOM
T.bis pr.ogram simulates
the
popular card game Blackjack by Itdealing" a random
selection
of.
cards·
to
both
the
usep-
and
the
Itdealera,
whieh
is
of
course
the
Veotor
4..
As
each
card
is
dealt,
an illustration
of
the
card
(except
for
the
dealer's
first
card,
of
course) appears on
the
"table".·
As
in
the
Cil1"G
game...
the
object is
to
come as close as possible
to
21
without exceeding
it.
To 'see this demonstration,
enter
the
command BLAXtTACX [B.ETtJllNl
JHV
ADDS.COM
Vector
Invadera
simulates
a
popular
arcade game,
by
IDling
the
:screen with
moving images
of
alien creatures
of
different sizes and
shapes.
The
invaders
scroll
from'
side
to
side, while
the
user's pod
can
be
moved acress
the
bottom
of
the
screen. Your object is
to
avoid
the
"missUes"
of
the
invaders
'lihUe
rapondlnc
with
ftmissUes
ff
of
your own.
(You
can only fire one missile
at
a
time, though, then you have
to
w
sit
until your
last
one is
otf
tile screen.)
SBA.D.COM
This program demonstrates
the
cursor mobility
of
the
Vector
4,
by allowing the
user
to
move a ftsnake"
of
Ught around
the
interior of a .rectangle. You
gain
points
by' "crashing"
the
snake into sguares of light which appear from time
to
. time
in
random locations
within
the
rectangle. As you
inerease
your
ftscore.J'f,
the
snake
grows
longer
(actually,
the
screen memory is extended further).
If
you move
the
cursor backwards, or ftcrash" into
the
outside
of
the
rectangle,
the· program ends.
X E-10
71GO-oOOl
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