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<BOOT11.DOC -- ^CHANGES FROM ^V4 TO ^V4^A(44)
.BR
^SEPTEMBER 1976
.FG30
^COPYRIGHT (^C) 1975,1976,1977
.BR
^DIGITAL ^EQUIPMENT ^CORPORATION, ^MAYNARD, ^MASS.
.B1
^THIS SOFTWARE IS FURNISHED UNDER A LICENSE FOR USE ONLY ON A
SINGLE COMPUTER SYSTEM AND MAY BE COPIED ONLY WITH THE INCLUSION
OF THE ABOVE COPYRIGHT NOTICE. ^THIS SOFTWARE, OR ANY OTHER
COPIES THEREOF, MAY NOT BE PROVIDED OR OTHERWISE MADE AVAILABLE
TO ANY OTHER PERSON EXCEPT FOR USE ON SUCH SYSTEM AND TO ONE WHO
AGREES TO THESE LICENSE TERMS. ^TITLE TO AND OWNERSHIP OF THE
SOFTWARE SHALL AT ALL TIMES REMAIN IN ^^DEC\\.
.B1
^THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT
NOTICE AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ^DIGITAL
^EQUIPMENT ^CORPORATION.
.B1
^^DEC\\ ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS
SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY ^^DEC\\.
.T <B114A.DOC
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<BOOT11.DOC -- ^CHANGES FROM ^V4 TO ^V4^A(44)
.BR
^SEPTEMBER 1976
.B 3
1.0##<SUMMARY
.B1
^^This is a maintenance release of BOOT11 intended to
correct deficiencies in Version 4. 
.B1
BOOT11 has been improved to function properly in
the following areas of hardware dependency:
.b1.lm9.i-4
1.##Dual CPU,
.b1.i-4
2.##Timing for PDP-11/40's, and
.b1.i-4
3.##DL10 8K option.
.B1.lm0
BOOT11 has also had the following software corrections
made:
.b1.lm9.i-4
1.##displays the LOCK UUO error code when attempt to lock fails,
.b1.i-4
2.##operates correctly when requested to LOCK above 112K on a KI or anytime on a KL10, 
.b1.i-4
3.##requires a port switch only when more than one PDP-11
exists on the DL10, and
.b1.i-4
4.##prints CPU serial numbers greater than 999 in dump heading format.
.B1.LM0
This version of BOOT11 has been tested under 5.07/6.01
and 6.02 monitors on KA, KI, and KL10 processors.
.B1
This version fully replaces Version 4 and requires no 
modification for DATE75.
.B1
All edits made in response to SPRs through 1 June '75
have been included.
.B1
BOOT11 is documented in the DECsystem-10 Software
Notebooks Specifications section.
.pg
2.0##EXTERNAL CHANGES
.B2
2.1##User Interface
.B1
If a total of only one PDP-11 exists on all DL10's and 
it is connected to port 0, there is no change to the user
interface for this program. Also, if the user always 
specifies the DL10 port number, there is no change to the
user interface for this program.
.B1
If the total number of PDP-11's which exist on all
DL10's on the system is greater than one (including the
case of just one PDP-11 connected to some port other
than port 0), BOOT11
now requires that the user supply the appropriate
port number.
.B2
2.2##Documentation Changes
.B1
BOOT11 requires that the port number be explicitly
given when the total number of PDP-11's which exist on
all DL10's on the system is greater than one. The
format of this switch is not changed; namely, the
user supplies:
.B1.lm5
/PORTNO:n
.br.i-5
or###/P:n
.b1.lm0
where n is the port number in the range 0-7.
.B1
If BOOT11 is not given a port switch and determines
that one is required (e.g, PDP-11's exist on ports 0, 1,
and 2), it responds with:
.B1.lm5.nj.nf
"PDP-11's EXIST ON PORTS:
0 1 2
? PORT SWITCH REQUIRED
FILE:
.B1.lm0.f.j
to which the user should re-enter the command string and
include the appropriate port number.
.B1
The requirement for this switch has been added to BOOT11.HLP.
.pg
3.0##KNOWN BUGS AND DEFICIENCIES
.B1
The known bugs and deficiencies in BOOT11 Version 4A
as of June 10, 1975, are:
.b1
Though this version corrects most timing problems,
there can appear a timing problem which aborts BOOT11
(with either a "PDP-11 won't start#-#check halt switch"
message or "PDP-11 took too long in transfer loop"
message). This seems to appear when two successive commands are
given which request the PDP-11 to start from stop or
stop from running. From timesharing, a re-try seems 
to always succeed; from batch, where the commands
are processed faster than the react time of the PDP-11,
this solution is inadequate. This problem does not occur
very often and seems to be dependent on the PDP-11
hardware reaction time.
.b1
In the BOOT11 DUMP routine, heading format and paging
may be done wrong if there
are many groups of zero memory being reported (although
all data is correct).
.pg
4.0##INSTALLATION INSTRUCTIONS
.b1
There are no changes to the installation instructions.
.b1
To install BOOT11, copy BOOT11.SHR and
BOOT11.LOW from the distribution tape to SYS:.
.b3
5.0##INTERNAL CHANGES
.b1
The Dual CPU change does a SET CPU UUO to
allow BOOT11 to run on CPU 0 only. [Edit 35]
.b1
The bus timing constant for the PDP-11 is increased
to make BOOT11 work on PDP-11/40's.
[Edits 36 and 44]
.b1
BOOT11 locks on an even-numbered page boundary in
order to function properly with the DL10 8K option.
[Edit 37]
.b1
BOOT11 displays the LOCK UUO error code (documented
in the Monitor Calls notebook) which is returned in the
AC when the LOCK fails. [Edit 40]
.b1
BOOT11 determines where the job is locked in core via
a GETTAB to locate the user's page map, rather than
the page returned from the LOCK UUO (which is a mapped
page above 112K on a KI and always on a KL10). [Edit 41]
SPR 10-15583.
.b1
BOOT11 checks the command syntax for an explicit port switch.
If the port swtich is given, BOOT11 proceeds using that
information.
If the port switch is not given, BOOT11 then checks the 
DL10(s) for the existance of more than PDP-11 (via a
DATAI). If only one PDP-11 exists and it is on port
0, no switch is required and BOOT11 proceeds. If more
than one PDP-11 exists (or a single PDP-11 exists on
some port other than zero), BOOT11 requires the user
to re-enter the command string and include the port switch.
[Edit 42]
.b1
BOOT11 retrieves the CPU serial number from the
monitor via a GETTAB for output when a dump of
a PDP-11 is requested. The field for this serial
number has been enlarged to allow up to four decimal
digits (9999). [Edit 43}
.B3
6.0##^^SUGGESTIONS\\
.B1
^NONE.
.B3
[^END OF <BOOT11.DOC]