Search found 69 matches

by jregel
Thu Dec 28, 2017 11:15 pm
Forum: hardware
Topic: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)
Replies: 1021
Views: 79662

Re: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)

BigEd wrote:About max latency: see previously (upthread).

About the ARM Basics: yes they have ARM assemblers built in. For the native ARM, you need BAS135. I'm sure there's an SSD around somewhere nearby. (Edit: see here)


Thanks, BigEd!
by jregel
Thu Dec 28, 2017 10:50 pm
Forum: hardware
Topic: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)
Replies: 1021
Views: 79662

Re: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)

Thanks to Kjell, I am a happy member of the PiTubeDirect owners' club. A fantastic development, congratulations to all involved in creating this project! Although I'm mostly interested in using it for the 6502 co-pro functionality, I'm intrigued by the native ARM mode. Looking through this thread (a...
by jregel
Wed Dec 27, 2017 11:01 pm
Forum: hardware
Topic: A blitter for the beeb?
Replies: 49
Views: 2248

Re: A blitter for the beeb?

Really good sound! I like it! How do you output the audio? Is it a separate audio output to the built-in Beeb sound chip? In your original description, you mentioned that it would sit in the CPU socket. I'm just curious as to whether your approach would work in any other scenarios, such as: - Could ...
by jregel
Sat Dec 16, 2017 12:46 pm
Forum: hardware
Topic: A blitter for the beeb?
Replies: 49
Views: 2248

Re: A blitter for the beeb?

Wow - very impressive sound!

Just out of interest, how big are the samples that's playing and what rate is it playing back? Is it a proper MOD file?
by jregel
Fri Dec 08, 2017 10:49 pm
Forum: hardware
Topic: A blitter for the beeb?
Replies: 49
Views: 2248

Re: A blitter for the beeb?

To pick up on some of the points made in recent comments: While four sound channels would be very nice, another computer to look at might be the Atari STe. The base ST model only had a Yamaha YM2149 chip (not a million miles from the Beeb), but the STe added a stereo DMA channel. It still wasn't as ...
by jregel
Mon Dec 04, 2017 8:06 pm
Forum: hardware
Topic: A blitter for the beeb?
Replies: 49
Views: 2248

Re: A blitter for the beeb?

Just out of interest, do you have any idea how many software sprites the blitter could handle, e.g. 16x16 sprites in mode 1 or mode 2 at 50Hz?
by jregel
Wed Nov 29, 2017 9:52 pm
Forum: software: other
Topic: GXR questions
Replies: 5
Views: 384

Re: GXR questions

I don't know the answers to your questions, but the BBC Master Welcome disc has the SPRITER ROM image in the $.LIBRARY directory. This adds the sprite handling part of the GXR that wasn't included in the Master MOS. It was discovered (in this thread that the SPRITER code is only 9K (the remaining 7K...
by jregel
Wed Nov 29, 2017 1:34 pm
Forum: hardware
Topic: A blitter for the beeb?
Replies: 49
Views: 2248

Re: A blitter for the beeb?

This is very impressive! If the functionality of the blitter could be used by the GXR VDU extensions, it could enhance existing programs (in the same way that VideoNULA does) and still "feel like a Beeb". It would also provide a very easy way into utilising its capabilities (through BASIC)...
by jregel
Mon Oct 16, 2017 2:34 pm
Forum: hardware
Topic: 6502 second processor poll
Replies: 40
Views: 1508

Re: 6502 second processor poll

If you planned to make a game for a second-processor equipped machine, you might be interested in how many people are an in a position to appreciate it. For some purposes, the proportion matters, and for others, the absolute number. For other purposes, it's all just a bit of fun. Ultimately, all th...
by jregel
Thu Oct 12, 2017 8:09 pm
Forum: hardware
Topic: Palettemate / enhanced video ULA with 4096 colours
Replies: 506
Views: 31471

Re: Palettemate / enhanced video ULA with 4096 colours

I'm very late responding to this thread, because Rob very kindly installed a VideoNuLA in my Master back in August. Due to real life, I've only just started playing with it properly and just need to say what a fabulous piece of kit it is and what a total gent Rob was for installing it for me (my sol...
by jregel
Thu Oct 12, 2017 6:38 pm
Forum: hardware
Topic: 6502 second processor poll
Replies: 40
Views: 1508

6502 second processor poll

I'm curious how many of our community have a 6502 second processor of some sort.
Given the wide range of options now available, I'm wondering if the second processor can finally be consider standard equipment...
by jregel
Mon Oct 09, 2017 7:49 pm
Forum: programming
Topic: How to you plan "large" programs?
Replies: 6
Views: 514

Re: How to you plan "large" programs?

Useful comments, thanks for the feedback!
by jregel
Mon Oct 09, 2017 1:31 pm
Forum: programming
Topic: How to you plan "large" programs?
Replies: 6
Views: 514

How to you plan "large" programs?

I'm looking for some guidance in writing "large" BASIC programs. I've broken the design down into a number of modules (screen drawing, input handling, processing specific events etc.) and I want to work on each module independently. But what's the best way to actually approach writing this...
by jregel
Sat Sep 09, 2017 11:04 am
Forum: stardot.org.uk
Topic: List of Acorn/BBC related websites
Replies: 23
Views: 1755

Re: List of Acorn/BBC related websites

Thanks. Have updated the list to reflect these changes.
by jregel
Mon Jul 31, 2017 7:10 pm
Forum: hardware
Topic: Palettemate / enhanced video ULA with 4096 colours
Replies: 506
Views: 31471

Re: Palettemate / enhanced video ULA with 4096 colours

Impressive, although 30 years ago, you could have sold thousands :-)
by jregel
Mon Jul 31, 2017 6:55 pm
Forum: hardware
Topic: Palettemate / enhanced video ULA with 4096 colours
Replies: 506
Views: 31471

Re: Palettemate / enhanced video ULA with 4096 colours

I'm guessing that last one has now been taken, but if not, I'd like to express an interest. Not yet but I'll give algenon_iii the chance to respond before putting it aside for you. Hope this is okay. Given there's a bit of interest, I'll look at ordering some more PCBs and parts. Best wishes and th...
by jregel
Mon Jul 31, 2017 5:21 pm
Forum: hardware
Topic: Palettemate / enhanced video ULA with 4096 colours
Replies: 506
Views: 31471

Re: Palettemate / enhanced video ULA with 4096 colours

I've got to ask what the going rate is for the new ULA board as I don't think I've seen a price for it (assuming there are still any available). They are £52.50 including UK P&P. I only have one left but I may order some more PCBs and make some more if there's enough demand. I'm in Newport so y...
by jregel
Wed Jul 26, 2017 1:15 pm
Forum: hardware
Topic: OS RAM module
Replies: 79
Views: 4587

Re: OS RAM module

Elminster wrote:Master has the megarom with basic, mos, terminal, view etc. In one.


Does this mean that it's simply not possible to create a Master version? :-(
by jregel
Tue Jul 25, 2017 10:00 am
Forum: programming
Topic: The £ sign in variable names?
Replies: 3
Views: 427

Re: The £ sign in variable names?

Thanks for the clarification.
by jregel
Tue Jul 25, 2017 8:04 am
Forum: programming
Topic: The £ sign in variable names?
Replies: 3
Views: 427

The £ sign in variable names?

I'm reading through the AMX SuperArt manual and disk and there are a set of routines that are designed to make WIMP interfaces easy. The provided code prefixes the variable names with a "£" and I've not come across this before: 30010 DEFPROCinit 30020 DIM £M$(5),£I%(5),£T%(5),£X%(5),£H%(5)...
by jregel
Mon Jul 24, 2017 10:32 am
Forum: hardware
Topic: *mzap and *define
Replies: 12
Views: 900

Re: *mzap and *define

It's probably not what you're thinking of, but the AMX Super Art ROM has a *DEFINE command which takes a filename parameter and is used to load up to 32 user icons and redefines characters 128 to 255.
by jregel
Wed Jul 19, 2017 7:20 pm
Forum: general
Topic: Today I received.....
Replies: 4355
Views: 266105

Re: Today I received.....

IMG_3078.jpg


The AMX Super Art manual!

With thanks to RobC for the kind donation.
by jregel
Sun Jul 16, 2017 9:46 pm
Forum: wanted
Topic: Wanted: AMX SuperArt Manual
Replies: 2
Views: 276

Re: Wanted: AMX SuperArt Manual

Fantastic! Thank you - will PM...
by jregel
Sun Jul 16, 2017 9:17 pm
Forum: wanted
Topic: Wanted: AMX SuperArt Manual
Replies: 2
Views: 276

Wanted: AMX SuperArt Manual

Hi

I'm looking for the manual for AMX SuperArt (NOT the AMX Art/Mouse guide that's online).

Would be happy with either a physical copy (for a reasonable price) or a scan.

Thanks!
by jregel
Thu Jul 13, 2017 12:45 pm
Forum: software: other
Topic: AMX Super ROM commands
Replies: 2
Views: 303

Re: AMX Super ROM commands

Brilliant! Thank you.

I thought there was menu functionality built in, but it only appears that drawing the Mac-like menu bar is all that's included.

Cheers!
by jregel
Thu Jul 13, 2017 11:22 am
Forum: software: other
Topic: AMX Super ROM commands
Replies: 2
Views: 303

AMX Super ROM commands

Hi I'm after the commands that are supported with the "AMX Mouse Support" ROM and haven't managed to find the correct *HELP command to list them. The older AMX Mouse manual includes some of the commands, but is missing some that were added later, such as *MENU. Does anyone have the manual ...
by jregel
Wed Jul 12, 2017 8:07 pm
Forum: stardot.org.uk
Topic: List of Acorn/BBC related websites
Replies: 23
Views: 1755

Re: List of Acorn/BBC related websites

Arcadian wrote:Just wondering if 'Creator(s)' is possibly a better term to use than 'Owner' ?


I've changed it from Owner to Contact as this hopefully doesn't imply too much in terms of content creation/ownership.
by jregel
Tue Jul 11, 2017 9:30 pm
Forum: stardot.org.uk
Topic: List of Acorn/BBC related websites
Replies: 23
Views: 1755

Re: List of Acorn/BBC related websites

Thanks - I've updated the top post with the added sites and details.
by jregel
Tue Jul 11, 2017 5:26 pm
Forum: stardot.org.uk
Topic: List of Acorn/BBC related websites
Replies: 23
Views: 1755

Re: List of Acorn/BBC related websites

Thanks for the entries. I've added them to the top post.

I've also taken the various pages of links and will trawl those later.
by jregel
Tue Jul 11, 2017 8:09 am
Forum: stardot.org.uk
Topic: List of Acorn/BBC related websites
Replies: 23
Views: 1755

Re: List of Acorn/BBC related websites

Thanks JGH. I've made a start :-)

Happy to add any others...

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