Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

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hoglet
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Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

Postby hoglet » Tue May 16, 2017 9:11 pm

synthored wrote:Can that emulate the whole range covered by the matchbox? I quite liked the idea of having a PDP11 at my fingertips once again!

Pi Tube Direct currently provides the following:
- 6502
- Z80
- 6809
- ARM1
- 80x86
- 32016
- Native ARM

What's currently missing (that the Matchbox provides) is:
- PDP11
- 68000

On the plus side, what's there is generally faster, and each of the cores has an integrated debugger (modelled on the debugger in B-Em).

More here:
https://github.com/hoglet67/PiTubeDirect/wiki

I expect that a PDP11 will be added in the next six months.

Dave
Last edited by hoglet on Tue May 16, 2017 9:12 pm, edited 1 time in total.

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sydney
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Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

Postby sydney » Tue May 16, 2017 9:12 pm

It would seem not but you do get the following:

Current Status

The PiTubeDirect firmware currently includes emulations of the following Beeb Co Processors:

65C102 (using 65tube - the fastest known native ARM 65C02 emulation)
65C102 (using lib6502 - written in C)
80x86 (using Fake86 - written in C)
ARM2 (using MAME's ARM 2/3/6 emulation - written in C)
32016 (using a 32016 emulation that started life in B-Em, and was resurrected earlier this year)
Z80
6809

RobC
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Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

Postby RobC » Fri May 19, 2017 5:57 pm

sydney wrote:It would seem not but you do get the following:

Current Status

The PiTubeDirect firmware currently includes emulations of the following Beeb Co Processors:

65C102 (using 65tube - the fastest known native ARM 65C02 emulation)
65C102 (using lib6502 - written in C)
80x86 (using Fake86 - written in C)
ARM2 (using MAME's ARM 2/3/6 emulation - written in C)
32016 (using a 32016 emulation that started life in B-Em, and was resurrected earlier this year)
Z80
6809

You also get the native 1GHz ARM copro on the Pi which will run BBC BASIC. Not sure whether anyone has tried running PDP11Tube on it though:
http://mdfs.net/Apps/Emulators/Tube/PDPTube

(In addition, an advantage over the matchbox is that the 32016 emulation has the FPU.)

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BigEd
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Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

Postby BigEd » Fri May 19, 2017 6:51 pm

I wonder if a remake of the Matchbox would be a good way forward - Jason, I think you offered to open up the designs, so it would need someone to be willing to do the buying and making, a bit of a thankless task... but if the net effect is bigger or faster, there might be a dozen takers for the feature set, as well as some takers who feel hardware beats emulation and who don't want to use a Pi. Also perhaps some completists, and some people who just want a nice FPGA dev platform.

Faster would mean bumping the FPGA speed grade from -2 to -3, for a modest bump in price, and/or swapping the RAM for a faster part, maybe 55ns or even 10ns, which doubles the RAM price. (Faster RAM might mean more stringent PCB design, which is another difficulty.)

Bigger would mean a different FPGA. Unfortunately, it looks like Xilinx don't do a bigger FPGA in quad flat pack, and a move to BGA is another difficulty in manufacture and of course a board redesign. As for size, the LX9 costs very roughly £13, the LX16 costs £18 and the LX25 costs £27. And those might even be plus VAT.

If an LX16 (60% bigger) is big enough for a 32016 with FPU and/or some cache, that might be a winner, but it's a new design and would be more expensive.

It's looking like faster might be feasible, but bigger is difficult.

Edit: looking at the various FPGA dev boards out there, Matchbox does stand out for having 32bit wide SRAM, and 5V interfacing, and reasonable cost (during its production runs).

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flynnjs
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Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

Postby flynnjs » Sat May 20, 2017 7:05 pm

I will post the pcb designs.

I have a new faster bigger better board coming out soon with an insane feature set at what should also be "a very reasonable price".

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BigEd
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Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

Postby BigEd » Sat May 20, 2017 8:21 pm

That sounds interesting!

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fordp
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Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

Postby fordp » Sat May 20, 2017 8:58 pm

flynnjs wrote:I will post the pcb designs.

I have a new faster bigger better board coming out soon with an insane feature set at what should also be "a very reasonable price".


Put me down for three ;)
FordP (Simon Ellwood)
Time is an illusion. Lunchtime, doubly so!

austindan
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Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

Postby austindan » Sat May 20, 2017 10:16 pm

Hi,
Is the matchbox Co Pro still available for purchase?
Thanks,
Dan.

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eelco
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Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

Postby eelco » Mon May 22, 2017 9:53 am

flynnjs wrote:I have a new faster bigger better board coming out soon with an insane feature set at what should also be "a very reasonable price".

Yes, please. Can I pre-order one?
My Acorn related files are located at:
http://acorn.huininga.nl/

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sirmorris
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Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

Postby sirmorris » Mon May 22, 2017 11:27 am

flynnjs wrote:I have a new faster bigger better board coming out soon with an insane feature set


Built-in ICE-T??!! [-o< please please please

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hoglet
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Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

Postby hoglet » Mon May 22, 2017 2:09 pm

sirmorris wrote:Built-in ICE-T??!! [-o< please please please

PiTubeDirect Cobra has that ;-)

synthored
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Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

Postby synthored » Tue May 23, 2017 9:44 pm

I ordered one each of the Pi Tube Direct variants in the end. Looking forward to a play when they arrive. Would definitely be interested in a next gen matchbox though!


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