Sage II - Cleaner Program; Operation; Building Cleaner

SAGE
II
SERVICE
I',IANUAL
I
I.O]
CYCLER
TEST
CYCLER
RAM TEST
XI.O4
GYCLER
RAT,T TEST
:
0n
CYCLER
startup, procedure
(hex)
ls
checked
to
determlne
A11 of
the
RAI'{ ls
tested,
one
ls
done wlth
a
68000
assemblv
sequence
of
operatl_ons
:
TST
INIT is
called. I'bmory
locatlon
100
how-much
ram
the
SAGE
II
ls
equlpped
with.
5LZ
byte
block at
a tlme.
The
block
test
code
program
called
TST RAI'I.
It
does this
Supervlsor
mode ls
entered.
Interrupts
are
shut
off.
Parlty
checklng
ls
shut
off.
The orlginal
contents
of the
block are
saved.
A
pattern
is
wrltten
to
all
bytes
of the
block and
read
back.
The origlnal
contents
are
restored.
Interrupts
are
enabled.
The
calllng
PASCAL routlne
RAI'ITFST
will
call
the block
tesr
for
all of
memory.
Then
the
test
pattern
wtll
be changed for
the next
test.
If
the
test fails
tt
w111
abort
all other
tests.
The
processor
llght
w111
be
RED.
If a
Eermlnal
ls
connected,
"TYPE
ESC" w111
be
dlspl-ayed,
A
t'beeptt
wtll
sound
every
15 seconds.
A11
MI'I memory
ls
checked
except for
a smal1
sectLon
of
TST
Ri-: itself
.
A
RAl"l error
nay
occur
durlng
other
parts
of the
CYCLER test
or during
the
B00T
lnttlaltzatLon.
An
EXCEPTION
error
wtll
be
prlnted
to
the
termlnal.
the
CYCLER
test
will
be aborted
and
any error
information
from
the
other
tests
w111
be 1ost.
30