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Lexicon MPX-1 User Manual

Lexicon MPX-1
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PARAMETERS
PASSED:
Execution
Address
(2
bytes).
Link
Address.
PARAMETERS
RETURNED:
None.
DESCRIPTION:
This
command
is
used
to
cause
a
routine
stored
in
local
RAM
on
the
MPX-1
to
be
executed.
A
"call"
is
made
to
the
routine,
so when
it
has
finished
executing
a
RETURN
instruction
will
pass
control
back
to
the
interpreter
(assuming
a
clean
stack).
The
starting
address
of
the
routine
is
two
bytes
long
and
is
stored
low
byte
first
at
Parameter
Bytes
0 and 1.
BLKMOV
-
HOVE
A
BLOCK
OF
RAM
ON
THE
SYSTEM
BUS
OPCODE
BIT
CODING:
Bit
7
CONT
I
INT
o o
1
o
o
Bit
0
1
---------------------------------------------------------------
PARAMETERS
PASSED:
Starting
Address
in
System
RAM
(3
bytes).
Ending
Address
in
System
RAM
(3
bytes).
Destination
Address
in
System
RAM
(3
bytes).
Link
Address.
PARAMETERS
RETURNED:
None.
DESCRIPTION:
This
command
is
used
to
move a
block
of
RAM
(of
any
size)
on
the
S-100 bus.
Three
addresses
are
passed:
The
starting
address
of
the
block
to
be
moved,
its
ending
address
and
the
destination
address
of
where
it's
being
moved
to.
Each
address
is
three
by~es
long
and
is
stored
low
byte
first.
The
starting
address
should
be
at
Parameter
Bytes
0-2,
the
ending
address
should
be
at
Parameter
Bytes
3-5
and
the
destination
address
should
be
at
Parameter
Bytes
6-8.
Note
that
this
command
is
useful
for
putting
code
in
extended
pages
that
normal
8
bit
processors
cannot
talk
to
without
a
lot
of
effort.
FASTMOV
-
MOVE
A
BLOCK
OF
RAM
ON
THE
SYSTEM
BUS
- FAST
OPCODE
BIT
CODING:
Bit
7
Bit
0
---------------------------------------------------------------
CONT
I
INT
o
o
1 o 1 o
PARAMETERS
PASSED:
Starting
Address
in
System
RAM
(3
bytes).
Ending Address
in
System
RAM
(3
bytes).
Destination
Address
in
System
RAM
(3
bytes).
i:ink
Address.
PARAMETERS
RETURNED:
None.
DESCRIPTION:
This
command
is
almost
the
same
as
above,
except
that
all
blocks
must be a
multiple
of
256
bytes,
and
begin
on 256
byte
boundaries.
This
allows
18

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Lexicon MPX-1 Specifications

General IconGeneral
BrandLexicon
ModelMPX-1
CategoryRecording Equipment
LanguageEnglish

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