Lx9pro fpga copro

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balladof32
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Lx9pro fpga copro

Post by balladof32 » Wed Jan 31, 2018 1:46 pm

Thanks in advance

matt_nottm
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Re: Lx9pro fpga copro

Post by matt_nottm » Wed Jan 31, 2018 2:58 pm

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Last edited by matt_nottm on Sun Mar 25, 2018 12:53 pm, edited 1 time in total.

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danielj
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Re: Lx9pro fpga copro

Post by danielj » Wed Jan 31, 2018 3:09 pm

You can ostensibly get the same functionality with the pi-zero copro? Admittedly it's emulated rather than FPGA'd, but to all intents and purposes they appear the same on the beeb end.

d.

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BigEd
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Re: Lx9pro fpga copro

Post by BigEd » Wed Jan 31, 2018 3:35 pm

(Except only the matchbox has the pdp11 mode.)

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sydney
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Re: Lx9pro fpga copro

Post by sydney » Wed Jan 31, 2018 4:04 pm

I think I'm willing to let mine go. I'll pm you.

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balladof32
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Re: Lx9pro fpga copro

Post by balladof32 » Wed Jan 31, 2018 4:15 pm

sydney wrote:I think I'm willing to let mine go. I'll pm you.
Pmd you back Sydney thanks

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balladof32
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Re: Lx9pro fpga copro

Post by balladof32 » Wed Jan 31, 2018 4:55 pm

Done deal :-) thank you Simon . I wish my thread for my needed superior software titles was filled that quickly :-)

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Re: Lx9pro fpga copro

Post by matt_nottm » Wed Jan 31, 2018 5:41 pm

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Lardo Boffin
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Re: Lx9pro fpga copro

Post by Lardo Boffin » Wed Jan 31, 2018 6:54 pm

matt_nottm wrote:It is my friend that is interested in PDP emulation from his programmer days. Any other offers? Thanks in advance.
Are you looking for a matchbox co-proc? I may be able to help. Firstly I need to find mine (its packed in a box as we are moving house) and then I need to check to see that it is still working and has a PDP setting. I had it updated and no idea if it still has one as I never used it.
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Retroclinic Datacentre + HDD, Viglen twin 40/80 5.25" discs, acorn cassette, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
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Re: Lx9pro fpga copro

Post by matt_nottm » Wed Jan 31, 2018 8:26 pm

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RobC
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Re: Lx9pro fpga copro

Post by RobC » Thu Feb 01, 2018 8:30 am

For those without a Matchbox, I do have a PDP-11 emulator running in software on the native ARM core of the Pi-copro. It'll run a few variants of UNIX (albeit a bit slowly).

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fordp
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Re: Lx9pro fpga copro

Post by fordp » Thu Feb 01, 2018 9:22 am

RobC wrote:For those without a Matchbox, I do have a PDP-11 emulator running in software on the native ARM core of the Pi-copro. It'll run a few variants of UNIX (albeit a bit slowly).
Can it run PDP Basic ?
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Re: Lx9pro fpga copro

Post by RobC » Thu Feb 01, 2018 12:00 pm

fordp wrote:Can it run PDP Basic ?
Do you mean this?

If so, yes.

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Re: Lx9pro fpga copro

Post by matt_nottm » Thu Feb 01, 2018 5:21 pm

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Lardo Boffin
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Re: Lx9pro fpga copro

Post by Lardo Boffin » Thu Feb 01, 2018 6:11 pm

matt_nottm wrote:Thanks RobC, I've forwarded that on to my friend for reading, also searching the forum, I've found a couple of threads that you have posted in.

Lardo Boffin, I am still interested in the Lx9pro fpga copro at convenient time for you if you are still interested in selling.

Thanks, both!
It will most likely be Monday before I can box dive to try and find it. I need to find a DFS ROM as well to test a floppy drive that is being delivered soon so double the motivation! I think they are prob both in the same box.
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Retroclinic Datacentre + HDD, Viglen twin 40/80 5.25" discs, acorn cassette, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
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Re: Lx9pro fpga copro

Post by fordp » Thu Feb 01, 2018 9:28 pm

RobC wrote:
fordp wrote:Can it run PDP Basic ?
Do you mean this?

If so, yes.
Cool. I am guessing you do it via the Native Copro however?
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Re: Lx9pro fpga copro

Post by RobC » Thu Feb 01, 2018 10:37 pm

fordp wrote:Cool. I am guessing you do it via the Native Copro however?
Yes but I've also had it running on Sprow's ARM7TDMI. The good thing is that the emulator is able to boot Unix disk images so I've had it running Ultrix, Unix V7 and BSD.

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BigEd
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Re: Lx9pro fpga copro

Post by BigEd » Thu Feb 01, 2018 10:51 pm

That's great to hear Rob. Do you know what ClockSp reports as the equivalent speed? JGH's blog says, I think, that the 20MHz PDP-11 in the matchbox clocks in as a 25MHz 6502 equivalent.

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Re: Lx9pro fpga copro

Post by RobC » Thu Feb 01, 2018 11:53 pm

BigEd wrote:Do you know what ClockSp reports as the equivalent speed?
Have to admit that I didn't try that. (Getting PDP-11 BBC BASIC onto the Unix filesystem was a bit of pain as I had to find an existing, larger binary and overwrite it.)

I'm up to my eyeballs in Spectrum sound emulation and A3010 repairs at the moment but I'll give it a go when I get a chance!

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Re: Lx9pro fpga copro

Post by jgharston » Fri Feb 02, 2018 2:07 am

RobC wrote:Have to admit that I didn't try that. (Getting PDP-11 BBC BASIC onto the Unix filesystem was a bit of pain as I had to find an existing, larger binary and overwrite it.)
I was about to reply: if you have unzip for PDP11 unix.... then suddenly thought: wait, I have a bootstrap dezipper written in BASIC (a bit like SparkPlug), so if I remember where it is I could include that with the PDP BASIC archive.

Also, I had been planning on archiving the PDP BASIC distribution as a Unix disk image, so you could just mount it from within Unix. I must get around to finishing my files-to-Unix-image program (an equivalent of mkimg -fs unix).

Code: Select all

$ bbcbasic
PDP11 BBC BASIC IV Version 0.25
(C) Copyright J.G.Harston 1989,2005-2015
>_

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Re: Lx9pro fpga copro

Post by RobC » Fri Feb 02, 2018 8:44 am

Thanks JGH. And please don't think I meant any criticism of your UxFiler - it was the most convenient way I found to get BBC BASIC onto the UNIX disk images. I just didn't find any easy way to transfer lots of files so that was my excuse for not trying out more stuff :oops:

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Re: Lx9pro fpga copro

Post by Lardo Boffin » Tue Feb 06, 2018 3:23 pm

matt_nottm wrote:Thanks RobC, I've forwarded that on to my friend for reading, also searching the forum, I've found a couple of threads that you have posted in.

Lardo Boffin, I am still interested in the Lx9pro fpga copro at convenient time for you if you are still interested in selling.

Thanks, both!
Found it! Plugged it in and ...
B27CF6E4-5EEE-423D-8B30-95F935D15700.jpeg
Drop me a PM if you are still interested.
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Retroclinic Datacentre + HDD, Viglen twin 40/80 5.25" discs, acorn cassette, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master

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Re: Lx9pro fpga copro

Post by matt_nottm » Tue Feb 06, 2018 6:54 pm

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Re: Lx9pro fpga copro

Post by matt_nottm » Sun Feb 11, 2018 9:39 am

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