6 Mar
2016
6 Mar
'16
12:35 a.m.
Would someone please point me towards a tutorial of some sort on running
the assembler on TOPS20 as presented in Mark Crispin's Panda distribution?
--
David Griffith
dave at 661.org
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
7 Mar
7 Mar
2:20 p.m.
From: David Griffith
Sent: Saturday, March 05, 2016 9:36 PM
Would someone please point me towards a tutorial of
some sort on running
the assembler on TOPS20 as presented in Mark Crispin's Panda distribution?
http://www.bitsavers.org/pdf/dec/pdp10/TOPS20/AA-4159C-TM_Macro_Assembler_R…
http://www.bitsavers.org/pdf/dec/pdp10/TOPS20/DEC-20-OMUGA-A-D_Monitor_Call…
If you are comfortable with assembler language programming, these should
suffice. If not, there are pointers to one online textbook in the recent
flurry of messages discussing the Gorin textbook; besides the TOPS-20 books
there is the Singer DEC-10 assembler book (monitor calls differ immensely
from TOPS-20, so of limited use for you). The
following are the most recent
system calls manuals, but as text files they're
actually harder to read till
you're used to the format from the older version of the user's guide above.
http://www.bitsavers.org/pdf/dec/pdp10/TOPS20/V7/JSYS_USERS.MEM.txt
http://www.bitsavers.org/pdf/dec/pdp10/TOPS20/V7/JSYS_REFERENCE.MEM.txt
(Oh. TOPS-20 monitor calls are referred to as "JSYS calls", since that is
the machine instruction, opcode 104, which invokes them. Thus these names.)
Once you have a basic grasp of the assembler from the above, I recommend
perusing the sources to the MM mail manager suite of programs, which use
very good programming style, including the "structured programming" macros
found in MACSYM.MAC. Ralph did not think highly of them, and used an older
style in which conditional code is included in literals; the textbooks all
seem to utilize that style.
Wait. You said "running the assembler". Did you mean, "How do I invoke
Macro-20?" That's simple: The commands COMPILE, LOAD, EXECUTE, and DEBUG
all recognize the file type .MAC as requiring Macro-20 and do the Right
Thing(TM) automagically. If you need more than that, the Macro-20 manual
above and the LINK manual (damn it, there's not a copy on Bitsavers--talk
to me, Al!) will provide details of how to invoke them.
COMPILE does only that. LOAD will compile if necessary and link the result
into an executable image in memory (which can be saved as an executable
program file with the SAVE command). EXECUTE and DEBUG will compile if
needed, link, and respectively either simply start running or invoke DDT
and leave you ready to execute, examine memory, etc.
Do you need a pointer to the user commands manual?
http://www.bitsavers.org/pdf/dec/pdp10/TOPS20/V7/USERS.MEM.txt
Rich
Rich Alderson
Vintage Computing Sr. Systems Engineer
Living Computer Museum
2245 1st Avenue S
Seattle, WA 98134
mailto:RichA at LivingComputerMuseum.org
http://www.LivingComputerMuseum.org/
8 Mar
8 Mar
2:52 a.m.
On Mon, 7 Mar 2016, Rich Alderson wrote:
From: David Griffith
Sent: Saturday, March 05, 2016 9:36 PM
> Would someone please point me towards a tutorial of some sort on running
> the assembler on TOPS20 as presented in Mark Crispin's Panda distribution?
[snip]
COMPILE does only that. LOAD will compile if
necessary and link the result
into an executable image in memory (which can be saved as an executable
program file with the SAVE command). EXECUTE and DEBUG will compile if
needed, link, and respectively either simply start running or invoke DDT
and leave you ready to execute, examine memory, etc.
Do you need a pointer to the user commands manual?
http://www.bitsavers.org/pdf/dec/pdp10/TOPS20/V7/USERS.MEM.txt
Specifically I'm trying to build and run this:
TITLE HACK
SEARCH MONSYM
HACK: SKIPA 4,[^D4]
HACK0: SOJL 4,TRAILL
SETZB 1,3
HACK1: TLNE 1,777777
JRST HACK0
MOVE 2,1
CIRC 2,-^D18
SKIPN 4
SKIPA 1,3
IOR 1,3
LITES%
HALT
HRRZ 2,1
MOVEI 1,30
DISMS%
MOVE 1,2
AOJA 1,HACK1
TRAILL: SETZ 1,
TRALL0: LITES%
HALT
MOVE 2,1
MOVEI 1,30
DISMS%
JUMPL 2,TRAILR
LSHC 1,^D37
AOJA 1,TRALL0
TRAILR: MOVSI 1,400000
TRALR0: LITES%
HALT
MOVE 2,1
MOVEI 1,30
DISMS%
MOVE 1,2
TRNE 1,1
JRST HACK
ASH 1,-1
JRST TRALR0
END HACK
When I do COMPILE, LOAD, and SAVE on it and run the executable, I get
this:
$hack
?Illegal instruction 247100,,777756 at HACK1+3
?Undefined operation code
--
David Griffith
dave at 661.org
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
2:12 p.m.
From: David Griffith
Sent: Monday, March 07, 2016 11:53 PM
Specifically I'm trying to build and run this:
TITLE HACK
SEARCH MONSYM
HACK: SKIPA 4,[^D4]
HACK0: SOJL 4,TRAILL
SETZB 1,3
HACK1: TLNE 1,777777
JRST HACK0
MOVE 2,1
CIRC 2,-^D18
^^^^^^^^^^^^
...
END HACK
When I do COMPILE, LOAD, and SAVE on it and run the
executable, I get this:
$hack
?Illegal instruction 247100,,777756 at HACK1+3
?Undefined operation code
As well you should. There is no CIRC in the standard PDP-10 instruction set.
Opcode 247 is unassigned, so if someone defined CIRC locally (say, in an OPDEF,
although I don't see one here), the result you report would be precisely what
I would expect.
Where did this code come from? From the presence of the LITES% JSYS I infer
that it has something to do with Bob Armstrong's panel. Perhaps you should
direct a query in his direction? SpareTimeGizmos.com, and all that.
Rich
Rich Alderson
Vintage Computing Sr. Systems Engineer
Living Computer Museum
2245 1st Avenue S
Seattle, WA 98134
mailto:RichA at LivingComputerMuseum.org
http://www.LivingComputerMuseum.org/
5:52 p.m.
On 03/08/2016 05:47 PM, Phil Budne wrote:
CIRC is an MIT/ITS instruction; ISTR a flavor of
"rotate"
It's a double-word rotate like ROTC except the two registers rotate in
opposite directions. The instruction
CIRC AC, 36.
will swap AC and AC+1 and reverse both of their bit orders.
9 Mar
9 Mar
7:14 p.m.
On Tue, 8 Mar 2016, Rich Alderson wrote:
From: David Griffith
Sent: Monday, March 07, 2016 11:53 PM
I got it from Jan deRie when I asked about it on a Youtube video[1]
showing the Panda Display in action. I'm trying to get it compiled
because I've made a new Panda Display board[2] that connects to a USB port
instead of a parallel port. The new board works, but the lights don't
light up as expected, so I need something that puts a recognizable pattern
on the display.
I'm doing this with Bob Armstrong's blessing, but I haven't asked him
about this program yet. I'll post to the Spare Times Gizmos list now.
[1] https://www.youtube.com/watch?v=g_LcQ5apODg
[2] https://github.com/DavidGriffith/panda-display
--
David Griffith
dave at 661.org
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
Specifically I'm trying to build and run
this:
TITLE HACK
SEARCH MONSYM
HACK: SKIPA 4,[^D4]
HACK0: SOJL 4,TRAILL
SETZB 1,3
HACK1: TLNE 1,777777
JRST HACK0
MOVE 2,1
CIRC 2,-^D18
^^^^^^^^^^^^
...
END HACK
When I do COMPILE, LOAD, and SAVE on it and run
the executable, I get this:
$hack
?Illegal instruction 247100,,777756 at HACK1+3
?Undefined operation code
As well you should. There is no CIRC in the standard PDP-10 instruction set.
Opcode 247 is unassigned, so if someone defined CIRC locally (say, in an OPDEF,
although I don't see one here), the result you report would be precisely what
I would expect.
Where did this code come from? From the presence of the LITES% JSYS I infer
that it has something to do with Bob Armstrong's panel. Perhaps you should
direct a query in his direction? SpareTimeGizmos.com, and all that.
10 Mar
10 Mar
2:17 p.m.
From: David Griffith
Sent: Wednesday, March 09, 2016 4:14 PM
On Tue, 8 Mar 2016, Rich Alderson wrote:
> From: David Griffith
> Sent: Monday, March 07, 2016 11:53 PM
>> Specifically I'm trying to build and run
this:
>> CIRC 2,-^D18
> Where did this code come from?
I got it from Jan deRie when I asked about it on a
Youtube video[1]
showing the Panda Display in action.
Something just occurred to me.
Exactly *where* are you trying to run this program? On a kn10-kl (the
extended KL-10 CPU defined by klh10), on a SimH KS-10, or on a real CPU
(KL, KS, or Toad)?
I just had a look at the klh10 sources and find that Ken Harrenstien
added the CIRC instruction to his KL emulation as well as his KS
emulation in 2002. If you're running any klh10-based emulation, that
instruction ought to work. It would only work on MIT-specific real
hardware.
Rich
Rich Alderson
Vintage Computing Sr. Systems Engineer
Living Computer Museum
2245 1st Avenue S
Seattle, WA 98134
mailto:RichA at LivingComputerMuseum.org
http://www.LivingComputerMuseum.org/
11 Mar
11 Mar
6:47 p.m.
On Thu, 10 Mar 2016, Rich Alderson wrote:
From: David Griffith
Sent: Wednesday, March 09, 2016 4:14 PM
It's a kn10-kl. I'm using the Panda distribution as downloaded from
http://panda.trailing-edge.com/.
--
David Griffith
dave at 661.org
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
On Tue, 8 Mar 2016, Rich Alderson wrote:
> From: David Griffith
> Sent: Monday, March 07, 2016 11:53 PM
>> Specifically I'm trying to build and
run this:
>> CIRC 2,-^D18
> Where did this code come from?
I got it from Jan deRie when I asked about it on
a Youtube video[1]
showing the Panda Display in action.
Something just occurred to me.
Exactly *where* are you trying to run this program? On a kn10-kl (the
extended KL-10 CPU defined by klh10), on a SimH KS-10, or on a real CPU
(KL, KS, or Toad)?
I just had a look at the klh10 sources and find that Ken Harrenstien
added the CIRC instruction to his KL emulation as well as his KS
emulation in 2002. If you're running any klh10-based emulation, that
instruction ought to work. It would only work on MIT-specific real
hardware.
8:04 p.m.
From: David Griffith
Sent: Friday, March 11, 2016 3:48 PM
On Thu, 10 Mar 2016, Rich Alderson wrote:
> Exactly *where* are you trying to run this
program? On a kn10-kl (the
> extended KL-10 CPU defined by klh10), on a SimH KS-10, or on a real CPU
> (KL, KS, or Toad)?
It's a kn10-kl. I'm using the Panda
distribution as downloaded from
http://panda.trailing-edge.com/.
It's been so long since I ran that that I had to reload it on my Linux
box. (I've been using klh10 for Tops-10 development for years now.)
I booted MRC's Panda disk image, cut&pasted the program into a file on
the disk (COPY TTY: HACK.MAC<ret> <paste> ^Z) then DEBUG HACK and stepped
through past the first LITES%. There was no complaint about the CIRC.
Capture a complete log and mail it to me. I'll see if I can see what's
stepping on you.
Rich
Rich Alderson
Vintage Computing Sr. Systems Engineer
Living Computer Museum
2245 1st Avenue S
Seattle, WA 98134
mailto:RichA at LivingComputerMuseum.org
http://www.LivingComputerMuseum.org/
3055
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