IBM 360/30 in verilog

[Camiel Vanderhoeven]

On Tue, Jul 12, 2016 at 2:07 PM, Dave Wade <dave.g4ugm at gmail.com> wrote:
>
>> -----Original Message-----
>> From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Camiel
>> Vanderhoeven
>> Sent: 12 July 2016 09:56
>> To: General Discussion: On-Topic and Off-Topic Posts
>> <cctalk at classiccmp.org>
>> Subject: RE: IBM 360/30 in verilog
>>
>> Op 12 jul. 2016 10:14 a.m. schreef "Dave Wade" <dave.g4ugm at gmail.com>:
>> >
>> > > -----Original Message-----
>> > > From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of
>> > > Curious Marc
>> > > Sent: 12 July 2016 08:58
>> > > To: General Discussion: On-Topic and Off-Topic Posts
>> > > <cctalk at classiccmp.org>
>> > > Subject: Re: IBM 360/30 in verilog
>> > >
>> > > Darn. My hopes are shattered. Lots of Verilog in my future, that is
>> > > if
>> we
>> > can
>> > > find 360/50 ALDs...
>> > > Marc
>> > >
>> >
>> > It actually might be easier to produce a generic S/360 clone in FPGA
>> > using the POP rather than individual ALU's.
>> > Having built a very simple CPU (in VHDL not Verilog) and planning to
>> > start on a more complex (Ferranti Pegasus) Of course it wouldn't be
>> > cycle accurate, but perhaps that wouldn't be important.
>>
>> Sure, a generic one would be simpler, but the point of doing an accurate one
>> of a specific model (65 in my case) is to accurately drive the panel that shows
>> the  internal registers and opening of gates.
>
> I think you are correct. I had assumed that the panel only displayed the normal 360 registers, in which case
> the VHDL could easily route these to a panel, but on reading the 360/65 Functional Characteristics
>
> http://bitsavers.informatik.uni-stuttgart.de/pdf/ibm/360/funcChar/A22-6884-3_360-65_funcChar.pdf
>
> I can see several registers are displayed that are not mentioned or defined elsewhere so you would need a
> Set of ALDs for the 65 (or possibly a 67 as that’s basically the same machine) to get a full panel display. It would
> Also be nice to see what is on the roller selector switchs as that page in the manual has not scanned very well..

I have a pdf file I created that shows the layout of the roller bars;
I don't think the link can take attachments, but if you want I could
email you a copy directly.

Camiel.