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PostPosted: Wed Jun 12, 2019 3:29 pm 
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Joined: Wed Feb 14, 2018 2:33 pm
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Location: Scotland
On the Commander X16 page, I was involved in a brief discussion of BBC Basic vs. MS/C64 Basic and offered to make a brief video - which I have done using my Ruby 6502 SBC. It's about 16 minutes long if anyones interested:

https://www.youtube.com/watch?v=ci_70naIg_Q

Cheers,

-Gordon
Ps. Yes, I did stick it to the side of my monitor with blue tack! :-)
Pps. edit to change X64 into X16 - I seem to have gotten X64 stuck, but it's really the Commander X16...

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Gordon Henderson.
See my Ruby 6502 and 65816 SBC projects here: https://projects.drogon.net/ruby/


Last edited by drogon on Thu Jun 13, 2019 5:13 pm, edited 1 time in total.

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PostPosted: Thu Jun 13, 2019 4:57 pm 
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Joined: Thu Dec 11, 2008 1:28 pm
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Great to see you so easily flipping your machine between EhBasic and BBC Basic - easy enough when you have loads of RAM and solid state storage, but still very neat to see.


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PostPosted: Thu Jun 13, 2019 5:12 pm 
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BigEd wrote:
Great to see you so easily flipping your machine between EhBasic and BBC Basic - easy enough when you have loads of RAM and solid state storage, but still very neat to see.


Thanks!

Only 64K of RAM there though... BBC Basic is stored in the Flash area in the ATmega as a sort of "ROM" filing system, and EhBasic (and others) are stored as a regular file on the SD card. Both go via the ATmega and into the 6502 through a 256 byte shared ram 'window' in 128 byte "packets". BBC Basic runs from $8000 upwards and I assembled EhBasic to go in the same location. That's the standard location in a BBC Micro for the "Language ROM" image.

The transfer speed is about 32KB/sec. which isn't too shabby, so about half a second for the 16KB ROM image for BBC Basic and a shade less for the 10KB of EhBasic.

Cheers,

-Gordon

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Gordon Henderson.
See my Ruby 6502 and 65816 SBC projects here: https://projects.drogon.net/ruby/


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PostPosted: Sat Jun 15, 2019 12:27 pm 
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Joined: Wed Feb 14, 2018 2:33 pm
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I did a quick update to this by getting the Microsoft BASIC sources from https://www.pagetable.com/?p=46 and creating a "proper" MS Basic for my Ruby system using the CBM2 template as a starting point - this was sort of for the Commander X16 people, but also ... why not ...

No video this time, just a blog entry and a screenshot which I've posted below to save any reading...

https://projects.drogon.net/microsoft-basic/

Cheers,

-Gordon
Attachment:
cbm2.png
cbm2.png [ 11.29 KiB | Viewed 607 times ]

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Gordon Henderson.
See my Ruby 6502 and 65816 SBC projects here: https://projects.drogon.net/ruby/


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