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Forum Index : Microcontroller and PC projects : CMM2 G2 sales....
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Grogster Admin Group  Joined: 31/12/2012 Location: New ZealandPosts: 9306 |
I sold three units to members here(two have been sent, last one will go out on Monday), so I put up the remaining two on my website last night - they have both sold by today..... I will have to order more units then!!!  I did not get more then five for a start, as a few years have passed since the G2 release, and cos of COVID, I was not sure if the demand was still there - technology moves on so fast, a couple of years might as well be a couple of decades as far as technology goes.   But I am delighted to see that demand is still there, and I hope that also makes Geoff and Peter smile too for all the work they have both put into what the CMM2 G2 is. Smoke makes things work. When the smoke gets out, it stops! |
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| William Leue Guru  Joined: 03/07/2020 Location: United StatesPosts: 393 |
Great news! It would be good if we could generate some publicity so that more people know that the freeze is thawing. -Bill |
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PeteCotton Guru Joined: 13/08/2020 Location: CanadaPosts: 368 |
Yes - I see projects like the Commander X16, Spectrum Next and Agon Light, all of which are excellent projects and deserving of success - but I can't help but feel that the CMM2 blows them out of the water in most areas. I know CMM2 doesn't have low level programmability like those other projects, but I would argue that most nostalgia nerds don't want to learn machine code. CMM2's BASIC is an exceptional implementation and with the speed and graphics - it really is the dream home computer for many people. We almost need someone to drive a marketing campaign..... |
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| William Leue Guru Joined: 03/07/2020 Location: United StatesPosts: 393 |
MMBASIC on the CMM2 runs considerably faster than programs written in assembly language on any of the new retro-8-bit machines. And being able to create fast full-screen bit-mapped graphics on the CMM2 is a whole lot easier to program than being forced to use tiles on these other machines. While I miss being able to use an object-oriented language for large programs, and while sometimes it would be great to have a few other runtime libraries to handle things like complex numbers and other math-y stuff, it's hard to beat MMBASIC for pure fun! -Bill |
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| William Leue Guru Joined: 03/07/2020 Location: United StatesPosts: 393 |
Grogster, my new MM2 Gen2 arrived today, and it works fine. Thanks much! -Bill |
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| Grogster Admin Group Joined: 31/12/2012 Location: New ZealandPosts: 9306 |
 Smoke makes things work. When the smoke gets out, it stops! |
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| EDNEDN Senior Member  Joined: 18/02/2023 Location: United StatesPosts: 118 |
It would not be hard to add a native Complex variable type. The big problem would be a lot of the If statement comparisons get kind of ambiguous. Does > refer to the Magnitude of the complex number? Or does it restrict itself to just the Real part of the complex number? Things like that would not be totally obvious to people. |
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| William Leue Guru Joined: 03/07/2020 Location: United StatesPosts: 393 |
EDNEDN said: True. In any object-oriented language, this problem does not occur, since operations like > can be overloaded so that they get automatically directed to the correct methods that match the data types. In MMBasic or other non-oo languages, you'd have to resort to library functions like CAdd, CSubtract, CCompare, and so on, and throw an error if an inappropriate operation is attempted. -Bill |
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Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6786 |
Woah! MMBasic isn't designed to be an OO language. You can *use* it as something like that, but it's not OO. You can't make it into one either - it's BASIC. You could probably write a true OO language, but that's starting again. Messing about with changing MMBasic on the CMM2 would break compatibility with all the other platforms. It is what it is, take it or leave it. . Edited 2023-11-21 07:34 by Mixtel90 Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| toml_12953 Guru Joined: 13/02/2015 Location: United StatesPosts: 339 |
Maybe not obvious but the implementation would be described in the manual so everyone would know exactly what to expect. Naturally, when you choose one method out of two, there are people who want the other choice. |
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| EDNEDN Senior Member Joined: 18/02/2023 Location: United StatesPosts: 118 |
Mostly I mentioned that "It would not be that hard to add a native Complex variable type." to MMBasic because the one thing Fortran has over BASIC is complex numbers. Pretty much MMBasic has F77 (or F95) beat on every other metric. It was purely a point of reflection. Complex numbers allow Fortran to easily do things like Laplace transforms where shifting the problem to the Complex Plane helps realize the solution. It is an interesting topic to think about. But I fully acknowledge if you really need Complex numbers to solve your problem, BASIC isn't the right language for you. Still???? It might be something fun to play with for a few days. :) I'm now curious how F77 handles the comparison of Complex numbers... I have some reading ahead of me. Edited 2023-11-21 14:41 by EDNEDN |
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| zeitfest Guru Joined: 31/07/2019 Location: AustraliaPosts: 482 |
The last I heard was the MMBasic architecture was restricted to three native datatypes, integers and floats (both nominally 64 bit) and strings. If anything, I'd suggest first adding some of the ordinary datatypes like byte, (char), int (16 bit), long int (32 bit), unsigned versions, single precision float (32 bit), ..... |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6786 |
I suspect it would be extremely difficult to add a Complex variable type at this stage. You almost certainly couldn't keep compatibility between the different platforms. Strangely enough using other data types will almost certainly sacrifice speed doing the conversions. These are not computers, they are microcontrollers - albeit a very fast one in the CMM2. They work using a single full data width fetch on the internal bus and you get whatever that is. :) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4229 |
Complex numbers: You can see complex numbers as 2 dimensional arrays. Then it is easy to implement all the math. Either in individual statements, or in array math. @Grogster Are you out of G2's ? Can I place an order for 1 ? Volhout Edited 2023-11-21 22:31 by Volhout PicomiteVGA PETSCII ROBOTS |
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| Grogster Admin Group Joined: 31/12/2012 Location: New ZealandPosts: 9306 |
Currently out of stock, but more have been built at the factory, and they will be sending them to me any day now(production is 95% complete), so yes - if you check my website in a few days, I will have updated the stock number, and re-enabled purchasing of them. I'm thinking about allowing back-orders. What do the members think? I generally don't like selling stuff I don't actually have yet, if you see where I am coming from..... Smoke makes things work. When the smoke gets out, it stops! |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6786 |
For those in the UK: At the moment Rapid Electronics are selling some grey enclosures that are compatible with the CMM2 via ebay. The price is very good. Front & rear panels are beige ABS plastic. ebay link Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 9115 |
That is incredible value. Postage on more than one is free. Edited 2023-11-23 01:26 by matherp |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6786 |
I bought two. There don't seem to be any disadvantages to them. :) Front and rear panels will accept PCB as usual. How long this offer will last I've no idea, Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| William Leue Guru Joined: 03/07/2020 Location: United StatesPosts: 393 |
Grogster, I notice that on my CMM2 Gen2 that you built, the SD card also appears to be situated a little too far away from the board edge, so that it pretty much disappears into the panel when fully inserted, instead of leaving a bit sticking out so that you can push it in to eject it. -Bill |
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phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 2135 |
Had the same issue on a mini PC. The solution was to bevel the edges of the slot with a craft knife. Before doing that I was using a plastic LCD stylus to push the end of the card. |
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