To view this discussion on the web visit https://groups.google.com/d/msgid/ibm1130/041f01d65556%24765fb320%24631f1960%24%40com.
Sure, I have a VHDL version of the IBM1130 running all of the factory software, unchanged, going all the way back to some time before the 2006 IBM1130 party where I did a little ‘show and tell’. I still have it on my desk and use it from time to time when I get in a FORTRAN frame of mind or I want to play with the plotter library.
It was my first full system design and, by any objective standard, the VHDL is less than stellar. HOWEVER, it runs at 50 MHz on a DIgilent NEXYS 2 board (now obsolete). I have been toying with the idea of cleaning up the code and porting it to the newer NEXYS A7
https://store.digilentinc.com/nexys-a7-fpga-trainer-board-recommended-for-ece-curriculum/
One reason for not doing the port is the lack of sufficient edge IO to accommodate the Compact Flash device and I don’t look forward to using an SD card.
I used an mbed LPC1768 board to implement the plotter. It takes plot steps over an SPI interface, converts the steps to HPGL sentences and sends the strings to my LaserJet via the LAN.
It is NOT cycle accurate, it is instruction accurate and, to me, that’s all that matters.
To view this discussion on the web visit https://groups.google.com/d/msgid/ibm1130/CALu7j1PRq5_NsgfT1qiTvJP1V%2BnmRB9nujs0H%3Ds%2Bz%2Bmrc9n3og%40mail.gmail.com.
--
You received this message because you are subscribed to the Google Groups "IBM1130" group.
To unsubscribe from this group and stop receiving emails from it, send an email to ibm1130+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/ibm1130/016701d65560%2488ead100%249ac07300%24%40comcast.net.
John Doty Noqsi Aerospace, Ltd.
The head of a pin is about 1 million nm across or an area of 0.8*1012 nm2
Once the number of gate equivalents are known and the area/gate is given, the math is pretty easy.
There are serious bottlenecks in the 1130 architecture. I doubt that the design would be considered ‘interesting’. Now, another RISC V would probably be exciting and perhaps a complete PDP11/70 with MMU and FPP and BSD 2.11 Unix would get some attention but I just can’t see anybody getting excited about the 1130.
The really big deal with CPU design isn’t the hardware, that’s easy! It’s the software. If the 1130 DMS and tools weren’t readily available, nobody would remember the machine. All the work by Brian Knittel makes the project even possible. His simulator is excellent but the assembler was the important piece for my needs early on. I needed to test instruction execution and I needed the proper machine code for all the variants.
One reason for not building a CDC 6600 is the fact that I can’t find the software. The hardware ‘might’ be pretty straightforward but it takes software to make it interesting. Besides, today’s PCs would blow its doors off!
From: ibm...@googlegroups.com <ibm...@googlegroups.com> On Behalf Of John Doty
Sent: Wednesday, July 8, 2020 1:08 PM
To: IBM1130 <ibm...@googlegroups.com>
Subject: Re: [IBM1130] here's a project for ya...
How many 1130’s can you fit on the head of a pin? ツ
On Jul 8, 2020, at 3:46 PM, <richard...@comcast.net> <richard...@comcast.net> wrote:
The design already fits on a chip the size of a large postage stamp. Why mess with ASIC?
-----Original Message-----
From: ibm...@googlegroups.com <ibm...@googlegroups.com> On Behalf Of Ricardo Bánffy
Sent: Wednesday, July 8, 2020 12:23 PM
To: ibm...@googlegroups.com
Subject: Re: [IBM1130] here's a project for ya...
This is probably enough to get it manufactured by the Skywater project
.
--
You received this message because you are subscribed to the Google Groups "IBM1130" group.
To unsubscribe from this group and stop receiving emails from it, send an email to ibm1130+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/ibm1130/016701d65560%2488ead100%249ac07300%24%40comcast.net.
--
You received this message because you are subscribed to the Google Groups "IBM1130" group.
To unsubscribe from this group and stop receiving emails from it, send an email to ibm1130+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/ibm1130/C651C955-2706-48AE-ACD8-006362E35FB2%40noqsi.com.
On Jul 8, 2020, at 4:38 PM, <richard...@comcast.net> <richard...@comcast.net> wrote:There are serious bottlenecks in the 1130 architecture.
Nice work!
I was just starting college when I was introduced to the IBM 1130 in 1970. It was love at first sight and it will always be my reference machine. I learned a lot way back when.
From: ibm...@googlegroups.com <ibm...@googlegroups.com> On Behalf Of Gary Wheeler
Sent: Wednesday, July 8, 2020 1:46 PM
To: ibm...@googlegroups.com
Subject: Re: [IBM1130] here's a project for ya...
As the writer of the Assembler it is fascinating to see the work that is carried on this many years after the introduction of the 1130.
.
To view this discussion on the web visit https://groups.google.com/d/msgid/ibm1130/BYAPR01MB4504215587C0B9F9AFC0C996D6670%40BYAPR01MB4504.prod.exchangelabs.com.
It was built to a price point! It was the first machine to rent for less than $1000/month.
From: ibm...@googlegroups.com <ibm...@googlegroups.com> On Behalf Of John Doty
Sent: Wednesday, July 8, 2020 1:52 PM
To: ibm...@googlegroups.com
Subject: Re: [IBM1130] here's a project for ya...
On Jul 8, 2020, at 4:38 PM, <richard...@comcast.net> <richard...@comcast.net> wrote:
.
And just shy of 17 years into retirement! Pretty cool!
To view this discussion on the web visit https://groups.google.com/d/msgid/ibm1130/CAM05CyDTzCXJWmDUaWDGR02f9UD0rW3NW5opDFkyNuthz_mdmQ%40mail.gmail.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/ibm1130/01dd01d6556c%24939e91c0%24badbb540%24%40comcast.net.
On Jul 8, 2020, at 4:46 PM, Gary Wheeler <garypw...@hotmail.com> wrote:As the writer of the Assembler it is fascinating to see the work that is carried on this many years after the introduction of the 1130.
Old age and treachery will always beat youth and exuberance.
From: ibm...@googlegroups.com <ibm...@googlegroups.com> On Behalf Of John Doty
Sent: Wednesday, July 8, 2020 2:26 PM
To: ibm...@googlegroups.com
Subject: Re: [IBM1130] here's a project for ya...
On Jul 8, 2020, at 4:46 PM, Gary Wheeler <garypw...@hotmail.com> wrote:
--
You received this message because you are subscribed to the Google Groups "IBM1130" group.
To unsubscribe from this group and stop receiving emails from it, send an email to ibm1130+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/ibm1130/76CD5BF6-B698-4C57-9FF0-12EA7FCC361C%40noqsi.com.
On Jul 8, 2020, at 6:50 PM, Jeff Jonas <je...@panix.com> wrote:Thank you. I learned assembly language on the 1130.
Did you get to debug or trace it using the front panel?
Single Step, Single Memory Cycle, Single Clock Cycle were perfect for that!
And everything was displayed on the panel without roller-switches or selectors.
Now, there’s ARM assembly language in the NICER instrument on the International Space Station.
I wrote it. None of the younger programmers knew how, so the codger physicist, educated on the 1130, got the job.
Wowzers, quite the feather in your cap!Old age and treachery will always beat youth and exuberance.
I prefer a more positive view of that:
old age and WISDOM prevails over knowledge and inexperience
Who is “single cycle Dudley”
Eddy
From: ibm...@googlegroups.com [mailto:ibm...@googlegroups.com] On Behalf Of Keve Gabbert
Sent: Wednesday, July 08, 2020 7:01 PM
To: ibm...@googlegroups.com
Subject: Re: [IBM1130] here's a project for ya...
How many remember "single cycle Dudley"?
--
You received this message because you are subscribed to the Google Groups "IBM1130" group.
To unsubscribe from this group and stop receiving emails from it, send an email to ibm1130+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/ibm1130/CAM05CyCLwL8NOT__M%2BTsAWq4mQFWgARY0JbsFUfr4rLPGt80Xw%40mail.gmail.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/ibm1130/000a01d65b0d%24c80d36e0%245827a4a0%24%40com.