CLUDMP is the compiler, and is a normal ITS executable. It has a
variety of commands documented in CLU ORDER, but normally just the
file name can be passed on the JCL. The compiler emits an
intermediate CLUMAC file which is then assembled with MIDAS, leavning
a BIN file. The BIN file is not a normal ITS binary, but has to be
loaded into the CLU runtime.
The CLUSYS directory has files needed to assemble CLUMAC files. ALPHA
and OMEGA are inserted at the top and bottom, respectively. ALPHA in
turn needs PASS1, TYPES, and COMMON. It is not known how LOAD is
used, but it's also necessary in the compilation process.
TS CLUSYS is the runtime system. The procedure "fload" accepts a
string specifying a file to be loaded.
It's an open question whether the two executables can be rebuilt from
source code found on the scattered ITS backups.
Don't fail to compile H3TEXT if a NET corresponding to a HOST address
is missing, just whine. (As a comment in SYSHST;HOSTS3 says, the
network table is almost useless anyway.)
This version includes one new function to test graphs,
<MK&DSP>$ which compiles all the MCELLs in the SENE1 image and then displays
the complete SENE1 cell. It takes about 15 to 20 seconds to compile the
display. That's pretty amazing for source code, much faster then DM, or USC-ISI's pdp10s.
Just think what a difference the compiler will make...
With support in KLH10 (dpimp version 1.1.4 or later), read the IP configuration from the NOP sent. The IP address is in the network, source host, and source IMP fields, and the subnet mask size is in the "handling type" field. The first and last of these are very non-standard, but hey... it works.
DSD is the deselection device. It allows the PDP-6 and PDP-10 to
share some devices and "deselect" them when they are not in use.
CONI/O bit 0 (the sign bit) is set when a device is free to use.
This change ensures the bit 0 checks are only done when DSDP is
enabled.
Now that ITS will honor the DSDP switch, it might not check the CONI
DIS bit 0 to see if the 340 is available. This leads to a situation
where the display could be turned off but ITS thinks it's always
online and will try to use it.
This commit adds a check writing some CONO bits and read them back
with CONI.
Instead, use ITSNMS table.
- MAGFRM doesn't need to check machine name.
- But still knows about MC's config...
- Look up hosts in ITSNMS table instead of a hardwired one, and use all of the ITSNMS for *.
Use bits in .RYEAR/.RLPDTM result to return a local time zone,
TZONE (definable in SYSTEM;CONFIG).
TZONE should be the integer timezone offset (hours West of UTC)
Bit 4.4 => timezone known (otherwise, assume EST/EDT = 5)
Bit 4.3 => sign bit of timezone offset
Bits 3.5-3.1 => absolute value of timezone offset
If DSTEU is defined and != 0, calculate daylight savings time
according to European Union rules:
- starts at 2:00 (standard time) on the last Sunday in March,
- ends at 2:00 (standard time) on the last Sunday in October.
Source code courtesy of Palevich, who comments:
"My guess is that the SUPDUP code is a fork and extension of my
original CHAMELEON terminal emulator.
My guess is that either Leigh Klotz or Patrick Sobolvaro extended
CHAMELEON to create SUPDUP. From looking over the source code, I
see these changes from what I remember writing in Chameleon:
+ Using the paddle to scroll left/right. (I only supported using
the yellow function keys to do this.)
+ Emulating SUPAI and IMLAC. (I had already added SUPDUP support to
CHAMELEON.)
+ Removing emulation for ADM-3A."
Klotz and Sobolvaro don't remember any details. They have given their
permission to release this, should that be necesssary.
LOGIN files suggest the ITS terminal settings should be:
:tctyp soft hei 24 wid 39 +%tosai +%tolid +%tocid full +%tprsc no overwrite
Courtesy of the author, Leigh Klotz.
Klotz wrote in https://news.ycombinator.com/item?id=23064346
> The assembler [for Apple II Logo] was already chosen, probably by
> Steve Hain or Gary Drescher. I believe it was CROSS. It annoyed me
> that I would get phase errors if I edited during the first pass
> which was like 10 or 15 minutes at night so I wrote a one-pass
> assembler in MacLisp, but it was slower to finish than the first
> pass of CROSS so I translated it to Logo and Hal said to put it on
> the utilities disk. I can't remember who added .output and .input
> but Logo had had them before the Apple II, I think 11Logo had it.
KA10 specific programs: DECtape tools, programs related to the Rubin
10-11 interface (including the Knight TV), programs using the 340
display, and programs using the PDP-6.
KL10 specific programs: microcode, frontend programs, and LSPEED.
KS10 specific programs: microcode, frontend programs, MTBOOT, and TENTH.
The 2500 bootstrap ROM expects to receive a block loader first, which
will run and recieve the actual payload which is the microcode and
font data divided into blocks.
The assembler will recieve a GC-OVERFLOW interrupt. Other TT2500
files set the GC-OVERFLOW variable to a dummy function, which seems to
appease the interrupt.
Since the TVDIS code was written before backquote was introduced to
Maclisp, it uses comma characters without quoting. To accomodate this
a call to SETSYNTAX overrides the new syntax for comma.
