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Thread Bump! I've added a few notes about the musak! Hopefully interesting! Enjoy.

Ok, following on from kierans lead I'm gonna reserve a post here to talk about the musak bit of the demo! 😃 Righto - so I've done up some notes on how we did the music for this demo, and added it to GitHub. Generally the music playback for twisted brain is the same as all of our other demos, we calc...

Unfortunately I can't attend this now (boo), but if anyone else wants my £50 ticket to join Kieran they are welcome to go in my place. PM me if interested.

This is very cool - great work Chris!

The variant in the Master System and Game Gear has a 16-bit shift register rather than a 15-bit, but it's embedded into the VDP so it's not necessarily drawn from official blueprints. This is actually a good improvement by Sega for the MS/GG, since it means that the periodic noise is exactly 4 octa...

This SMS Power link has been extremely useful for me over the past couple of years, while I was messing with sound chip things. In a correction to my earlier post, it appears that setting a tone register to 0 creates a continuous output (not 1 as I previously posted). Which makes sense as the chip u...

As Daniel says, gpl is fine for community projects like this. I tend to use MIT license for most of my beeb stuff as I'm really not fussed what happens to the little bits of code I'm putting "out there". For your tool David, I'd suggest something like this to get you started: 1 - set yourself up wit...

Yes, the SN data sheet says this: 7. DATA TRANSFER The microprocessor selects the SN76489AN by asserting !CE (active low). Unless !CE is asserted, no data transfer can occur. When !CE is asserted, the !WE signal strobes the contents of the data bus to the appropriate control register. The data bus c...

There are some unanswered questions -- are the assumptions correct? Why does changing the volume (of a square wave) let you play back samples at all? (The average speaker cone position should be "in the middle", regardless). Are the channels really added linearly? I seem to remember that the "trick...

Listening in on the high precision audio technicals being discussed here, I'm amused by how little we knew BITD - in fact I think we got pretty lucky with the samples we did on the various yorkshire boys sample demos. It certainly wasn't because we understood the hardware that well. In fact, I belie...

I read somewhere that craft cms has an ecommerce plugin. Not used it though so can't vouch if it suits your needs.

I used to like Perl quite a lot, but then I discovered Python, which is much more structured and easier to interface with underlying systems and binary files. Appreciate it's not everyone's cup of tea though, and it does take a bit of getting used to at first (wot, no braces?! :lol: ) David B's scri...

This is really great David. Given that I was considering writing such a tool from scratch, you've accelerated the process significantly. You mentioned you'd be open to sharing the source, which would be really fantastic for me just now as I'm particularly interested in finding a way to get my A5000 ...

^^ this. I mean, .inf files do get a job done, but I've never really warmed to the idea of them. And spaces in filenames really isnt even a thing anymore. So a neat tool that lets me pack all my acorn files into a nice image, preserving file types etc., instead of lots of bitty PC host files, sounds...

Sounds great David. It's been brilliant to see how much community effort has enhanced open sourced projects like BeebAsm and B-Em.
I actually much prefer c# over c++ for getting stuff done quickly. Plus I believe .NET apps can run just fine on Mac/Linux using Wine.

On a related note, since these days a lot of modded systems use CF or SD cards, does anyone know if it's easy to parse the .img files you get from a CF card (using a tool like win32diskimager) as an ADFS HD image? I presume they are low level byte copies of whats on the card, but not sure how the da...

This looks very promising! I was thinking recently (since I'm archiving a lot of acorn disks) that a tool like this would be super useful.
Out of interest - do you have any plans to open source it? (via Github etc.)

Loving the gallery disk!

Great work guys!

Hey Matt - I was wondering how feasible it might be to incorporate support for emulation of RobC's VideoNULA in jsbeeb?
Would be terrific to run some of the demos that use it in a browser.

Cheers
Simon

All. Kinds. Of. Awesome.

I've released a new version of the two NuLA gallery demos, which I tweaked at ABUG over the weekend, and can confirm they run ok on Turbo MMC now.
https://github.com/simondotm/bbc-nula/releases/tag/1.0

Just a thought on the latest B-Em developments - GitHub releases looks like it might be a convenient way to distribute the various compiled binaries for B-Em ... for those of us without a build environment anyway. You can create a tagged release and upload compiled binaries as attachments. https://h...

sixxdog_uk wrote:

Richard,

SimonM wanted to be in room2 with his brother so , I've moved you back into the main room where you originally were mate.

Lol that's my "bro" kieran as in coder bro!

Great idea!

Good to know, thanks. Had no idea that old pc 5.25" drives were so rare now, hardly any on ebay and what is on there is £100!!!

Have just stumbled upon Kyroflux as a "thing" and it sounds excellent as a I have a ton of old 5.25" beeb floppies that need archiving and I like the comforting sound of an analogue capture direct to PC. If anyone has any tips on which drives work best with it that would be good. Also if anyone has ...

sbadger wrote:hmmmmmmmmm. still seems to hang at the Nula screen

Gah! Working somewhat in the dark here. Ok....

Cheers Dave. Looks like I'll be using MMFS on my beeb from now on then as I don't want to attempt removing the video ula from my master. it's like shaving yaks getting this working, I just tried to load MMFS into swram and *unplugged my smartspi rom, it just gives me 'Card?' Hmmm... on the assumpti...

Aha, outstanding sleuthing chaps, thanks. This probably means almost all of our demos wont work on this FS then, since we've been playing fast and loose with page 13, like forever! :lol: I've relocated this buffer and attached a patched SSD (this one has the old OSFILE/OSFIND code back in). Please c...