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Xerox 560 Reference Manual

Xerox 560
206 pages
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significance
(FS),
floating
zero
(FZ),
and
floating
normalize
(FN) mode control bits,
respectively
(in
the
program status
words); however,
if
bit
11
is
0,
the
FR,
FS,
FZ, and FN
control bits
are
not
affected.
The functions
of
the
floating-
point
control bits
are
described in
the
section
"Floating-
Point Arithmetic Instructions".
Affected:
CC,
FR,
FS,
FZ, FN
If
(1)10
= 1, (1)24-27
-CC
If
(1)10
=
0,
CC
is
not
affected.
Trap:
Nonexistent
in-
struction,
if
bit
0
is a
1.
If
(1)11
=
I,
(1)28-31
-FR,
FR,
FS, FZ, FN
If
(1)11
=
0,
FR,
FS, FZ,
and
FN
not
affected.
Condition
code
settings, if (1)10 = 1:
2
3
4
(1)27
If
LCFI
is
indirectly
addressed,
it
is
treated
as a
nonexistent
instruction,
in whi ch case the computer
unconditiona
IIy
aborts
execution
of
the
instruction (at the time
of
operation
code
decoding)
and
traps to
location
X
'
40
'
with
the
condi-
tion
code
unchanged.
LCF
LOAD
CONDITIONS
AND FLOATING
CONTROL
(Byte
index
aiignment)
If
bit
position 10
of
the instruction word
contains
a 1,
LOAD
CONDITIONS
AND FLOATING CONTROL loads
bits
0 through 3
of
the
effective
byte
into the condition
code;
however,
if
bit
10 is 0, the
condition
code
is
not
affected.
If
bit
position
11
of
the instruction word
contains
aI,
LCF
loads bits 4 through 7
of
the
effective
byte into the
floating
round
(FR),
floating
significance
(FS),
floating
zero
(FZ),
and
floating
normalize (FN) mode control bits,
respectively;
however, if
bit
11
is 0,
the
FR,
FS,
FZ, and
FN
control
bits
are
not
affected.
The functions
of
the
floating-point
mode control bits
are
described in
the
section
"Floating-
Point
Arithmetic
Instructions".
Affected:
CC
,
FR,
FS
,
FZ,
FN
If
(1)10
=
1,
EB
O
_
3
-CC
If (I)
10
= 0
,
CC not
affected
If (I)
11
= 1,
EB
4-7
-
FR,
FS
,
FZ,
FN
If
(1)11
=
0,
FR,
FS,
FZ, FN not
affected
Condition
code
settings,
if
(1)10
= 1:
2
3
4
(EB)l
LVAW
LOAD
VIRTUAL
ADDRESS
WORD
(Word
index
alignment)
H
34
I R I X
I:
Reference;address I
o 1 2 3
14
5 6 7 6 9
10
11
12 13
14
15 16
17 16
19120
21
22 23 24 25 26
27128
29
30
31
LOAD
VIRTUAL
ADDRESS
WORD loads
bit
positions 15-31
of
register
R
with
the
effective
virtual
word address
of
the
instruction whi Ie
bit
positions
0-14
of
register R
are
cleared
to
zero.
Affected:
(R)
EVA
-R
15
-
31
,
O-R
O
_
14
Note:
Condition
code
is
not
affected
by
LVAW.
xw
EXCHANGE WORD
(Word
index
alignment)
EXCHANGE WORD
exchanges
the
contents
of
register R
Affected:
(R),
(EWL),
CC3,
CC4
(R)-(EWL)
Condition
code
settings:
2 3 4 Result in R
0 0
Zero
-
-
0
Negative
0 Positive
STB
STORE
BYTE
(Byte
index
alignment)
H 75 I R I X
I:
Referenc~
address I
o 1 2
314
5 6
78
9
1011
12 13
14
15 16 17 18
19120
21222324252627128293031
STORE
BYTE
stores
the
contents
of
bit
positions 24-31
of
register R into
the
effective
byte
location.
Affected:
(EBL)
(R)24-31
-EBL
Load/Store Instructions
55

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Xerox 560 Specifications

General IconGeneral
Print Resolution2400 x 2400 dpi
Monthly Duty CycleUp to 300, 000 pages
Duplex PrintingStandard
Operating System CompatibilityWindows, Mac OS, Linux
ConnectivityEthernet, USB
Paper SizeUp to 13 x 19.2 inches
TypeMultifunction Printer

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