 Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me. |
Forum Index : Microcontroller and PC projects : MMBasic for Web - perhaps, maybe, made you look ;-)
| Author | Message | ||||
thwill Guru  Joined: 16/09/2019 Location: United KingdomPosts: 4311 |
A long way from being anything useful, and I've no idea where I'm going with it (probably nowhere), but this is MMBasic running as WebAssembly within Firefox:  Best wishes, Tom MMBasic for Linux, Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
||||
Plasmamac Guru Joined: 31/01/2019 Location: GermanyPosts: 579 |
Someone must build a pci gpio Card Great to see a new Port. Plasma |
||||
| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3378 |
Why PCI when usb/serial to picomite via usb works fine? Intriguing at least, Tom. ~ Edited 2022-07-05 23:01 by lizby PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
||||
| zeitfest Guru Joined: 31/07/2019 Location: AustraliaPosts: 582 |
Nice  I was going to try Web Assembly but at the time the libraries had a few holes and it would crash on some numeric work  Keep going and keep us posted please ! |
||||
| JohnS Guru Joined: 18/11/2011 Location: United KingdomPosts: 4044 |
Just wondering, was that a typo for "pico gpio card"? I got something along those lines from aliexpress and I'm pretty sure there are others. John |
||||
Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 7937 |
They are available but I've not seen one that wasn't intended for commercial PC controller use, so they had commercial prices. :( Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
||||
| thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4311 |
What does this have to do with the price of fish ? i.e. how does this relate to my OP ? - not trying to pick a fight, I just don't understand the relationship. Best wishes, Tom MMBasic for Linux, Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
||||
| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 7937 |
I suspect it was Plasma's wishful thinking - to be able to control things from a PC browser running MMBasic. Only guessing. :) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
||||
| thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4311 |
Ah, you have the whole "sandbox" problem there, if that were possible you could write malicious WebApps that could do undesireable things to the hardware attached to the GPIO. WebAssembly runs on the JScript virtual machine built into the web-browser and that VM is very very locked down, even access to local file-system is verboten by default, that's one of the things browser plugins are for, to bypass those limitations. I suspect what I am playing with is completely bl**dy useless to the main MMBasic/hardware community (and probably everyone else too) ... though it would allow me to host SAAINT on a website  .Best wishes, Tom Edited 2022-07-08 23:45 by thwill MMBasic for Linux, Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
||||
| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 7937 |
Ah.... an ulterior motive. :) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
||||
| zeitfest Guru Joined: 31/07/2019 Location: AustraliaPosts: 582 |
Any update on the Web Assembly.. ? Intriguing.. |
||||
| thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4311 |
Hi @zeitfest, Thanks for your interest. This is a "self-directed learning" project that I started for the day-job. MMBasic was just a conveniently large piece of C code to work with and had the great advantage that my employers wouldn't then try and sell a half-baked learning exercise as if it were product. At the moment it is in mothballs whilst I deal with other work priorities. Before mothballing it I had reached something of an impasse as the event loop model that is used for writing Web Applications is incompatible with MMBasic's busy loop. Basically in a single-thread once MMBasic starts running there is no way for the Web Application to render output or capture input. By putting MMBasic into a worker thread you can theoretically deal with the output problem by sending messages from it to the main render thread, but MMBasic's busy loop is still incompatible with the main thread sending input messages to the worker thread. Barring a rewrite of MMBasic's busy loop I think the way forward is using a JavaScript SharedArrayBuffer to communicate between the main and worker threads, but historically these were a security hole and whilst I believe most of those issues have now been worked out, their use may still require explicit opt-in by the user/browser (and possibly the website serving the page). Hopefully I'll get back to this some time in the near future. Best wishes, Tom Edited 2022-07-26 19:40 by thwill MMBasic for Linux, Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
||||
| zeitfest Guru Joined: 31/07/2019 Location: AustraliaPosts: 582 |
Thanks, it looks like it could be quite a trek, it'll take off though I bet. To be revisited..  |
||||
 Print this page |
 |
The Back Shed's forum code is written, and hosted, in Australia. | © JAQ Software 2025 |
