15 Feb
2013
15 Feb
'13
12:09 a.m.
On 14/02/2013 23:39, Chuck Guzis wrote:
On 02/13/2013 11:19 PM, Claunch,Carl wrote:
I don't think so. Of course there already is an FPGA emulation of the
1130 by Richard T. Stofer which does plotting to an HPGL plotter. There
is a video of his presentation to the 06 1130.org party here:-
http://ibm1130.org/party/v06
I also have hacks to the SIMH emulation to drive an HPGL plotter.
Video of it in action here:-
http://www.youtube.com/watch?v=SCUUgLvVvpg
But for the 1620 nothing so far. There is Java based emulator but the
only software thats been converted is the diagnostics. Al did load up
the other stuff he has to bit savers , but I havn't had time to look at
it, as I got distracted by a project to connect some Creed equipment
Currently I am adapting an IBM Electronic
Typewriter model 50 - a
late model of the Selectrics - to serve as the console printer since
the 1130 used a 1053 (Selectric based printer). The keyboard is being
adapted from a keypunch keyboard, since the 1130 used the keyboard
from an IBM 029 punch, and even where I am using more modern devices
(a streaming link over USB to a PC to present card images to the
peripheral adapter logic, I have made it timing and behavior
faithful. The processor itself is working quite well, which is why I
have moved the focus to peripherals. It is a very similar effort to
that of Lawrence Wilkinson who has built a 360 model 30 and is also
building peripherals at this time. You can read about the 360/30
project at http://www.ljw.me.uk/ibm360/vhdl/
Nice work!
I remember the 1130. What are you doing for a card reader? I recall
that the 1130 could only read column-binary--it was up to software to
interpret the data into character codes.
Has anyone done an FPGA emulation of the 1620? from a Ferranti Pegasus to a software emulator....
That one has a soft spot in my heart to the extent
that I can still
remember the numeric opcodes for many instructions. The 1401 occupies
a similar place in my memories. Little IBM boxes were really cute.
The 1620 I used wasn't what I would call "cute"but it was the second
machine I programmed.
--Chuck
Dave
G4UGM