February,
1981
Issue
9.
COMPUTE!
139
FIG.3.FRONT
VIEW
OF
192K
RAM
TEST
SYSTEM
FIG.
4.
REAR
VIEW
OF
192K
TEST
SYSTEM
SHOWING
MOTHERBOARDS
WIRED
TOGETHER
A.
ADDRESS
•••••
1 BUS
B.
DATA
BUS
FIG.
5.
BUS
SIGNAL
WAVEFORMS
IN
192K
TEST
SYSTEM.
TOP
WAVEFORM
IN
EACH
PHOTO
IS
PHASE 2
CLOCK.
©
6502
FORTH
6502
FORTH
is a
complete
programming
system
which
contains
an
interpreter
/
compiler
as
well
as
an
assembler
and
editor.
6502
FORTH
runs
on
a KIM-I with a
serial
terminal.
(Terminal
should
be
at
least
64
chr.
wide)
All
terminal
I/O
is funnelled
through
a
jump
table
near
the
beginning
of
the
software
and
can
easily
be
changed
to
jump
to
user
written
I/O
drivers.
6502
FORTH
uses
cassette
for
the
system
mass
storage
device
Cassette
read/
write
routines
are
built
in
(includes
Hypertape).
92
op-words
are
built into
the
standard
vocabulary.
Excellent
machine
language
interface.
6502
FORTH
as
user
extensible.
6502
FORTH
is a
true
implementation
of forth
according
to
the
criteria
set
down by
the
forth
interest
group.
Specialized
vocabularies
can
be
developed
for specific
applications.
6502
FORTH
resides
in 8K of RAM
starting
at
$2000
and
can
operate
with
as
little
as
4K of
additional
contiguous
RAM.
6502
FORTH
PRICE
LIST
KIM
CASSETIE,
USER
MANUAL,
AND
COMPLETE
ANNOTATED
SOURCE
LISTING $90.00
($2000
VERSION)
PLUS
S&H
4.00
USER
MANUAL
(CREDITABLE
TOWARDS
SOFTWARE
PURCHASE) $15.00
PLUS
S&H
1.50
SEND
A
S.A.S.E.
FOR A
FORTH
BIBLIOGRAPHY
AND
A COM-
PLETE LIST OF 6502 SOFTWARE,
EPROM
FIRMWARE
(FOR
KIM,
SUPERKIM,
AIM,
SYM,
and
APPLE)
AND
6502
DESIGN
CONSULTING
SERVICES
AVAILABLE
.
Eric Rehnke
1067 Jadestone Lane
Corona,
CA
97120
Now
Available
For
KIM, AIM,
And
SYM
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