Acorn Electron core

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oldgit
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Acorn Electron core

Postby oldgit » Fri Jul 05, 2019 4:44 pm

https://github.com/davewoo999/Electron_MiSTer

This is a port of ElectronFPGA by David Banks, Mike Sterling.
I used the front end for the BBC Micro by Sorgelig and adapted it for this port.

As usual with a first port from me it's not perfect. It is fixed in 60hz video
my clumsy attempt at having a variable video clock is not working yet.
On start up you will need to ctrl-Break to clear the garbage on the screen. -- fix me

I put an Electron version of beeb.mmb on the 2nd SD card and was instructed to type *DBOOT 100

This didnt work. I had to type *DIN GAMES
CHAIN "GMENU"
Other files Have to be *EXEC
The only one that would boot was Elite.

I cannot get used to the Func Number for Function Keys. -- Func = Caps Lock
The additional mode7 mode is not incorporated although the rom is.

I never had an Electron and the only time I saw one was when it was being used as a door stop
in the 'One Step Beyond' shop in Norwich.

I will hopefully get around to fixing the probs, so it can be added in the main repository but I am still trying to find a decent soft core cpu with toolchain to bolt on to the Gameduino port I have. ZPU is no good as I cannot get 8bit writes and the risc ones are quite large.
Old enough to remember B&W TV with 2 channels: Young enough to embrace new technology: Stupid enough to try and get it to work.

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BitsNStuff
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Re: Acorn Electron core

Postby BitsNStuff » Fri Jul 05, 2019 6:55 pm

I used to have an Electron so this is good to see, Chuckie Egg here I come!!! :D

uigiflip
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Re: Acorn Electron core

Postby uigiflip » Tue Jul 16, 2019 5:10 pm

not found a working beeb.mmb for electron yet any clue where to find a good one like we have for the bbc?
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NML32
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Re: Acorn Electron core

Postby NML32 » Tue Jul 16, 2019 9:00 pm

uigiflip wrote:not found a working beeb.mmb for electron yet any clue where to find a good one like we have for the bbc?

I haven't either. :(

oldgit
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Re: Acorn Electron core

Postby oldgit » Fri Jul 19, 2019 6:35 am

I found the file at stardot org uk.
under Electron SSDs for MMC card

The file was beeb.7z
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brunosilva
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Re: Acorn Electron core

Postby brunosilva » Sat Jul 20, 2019 7:21 pm

but we must place the file in a second sd card?

NML32
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Re: Acorn Electron core

Postby NML32 » Sat Jul 20, 2019 11:35 pm

brunosilva wrote:but we must place the file in a second sd card?

Yes, that is my understanding from the Github readme

nico24
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Re: Acorn Electron core

Postby nico24 » Sat Sep 07, 2019 2:39 am

I have added tape loading from external tape through the ADC pins as I did for the Oric. The exact same code worked here too.

Again all credit goes to Oldgit the original porter of the core.

I do find loading UEF files useful, as there are plenty of things like cover tapes that exist in the TOSEC that aren't necessarily in the BEEB.MMC for the Electron. It's also quite fun too.

You can use a free bit of software called FreeUEF 0.9 to play the UEF files from your PC speaker.

Regards,
Nick
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seastalker
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Re: Acorn Electron core

Postby seastalker » Mon Dec 23, 2019 10:32 am

I am going to try this core out. Is this core not in the 'official' list yet?

oldgit
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Re: Acorn Electron core

Postby oldgit » Tue Dec 24, 2019 7:49 am

seastalker wrote:I am going to try this core out. Is this core not in the 'official' list yet?

Not yet.
I am planning to update this and the other cores I have in the New Year.
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Re: Acorn Electron core

Postby nico24 » Tue Dec 31, 2019 3:03 am

Let me know if you need the few lines of code that load from tape through the ADC. It certainly wasn't rocket science.

Regards,

Nick


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