Search found 920 matches

by kieranhj
Sun Dec 08, 2019 1:27 pm
Forum: new projects and releases: demoscene
Topic: New demo - Horizon (RISC OS, ARM2/3)
Replies: 11
Views: 2652

Re: New demo - Horizon

A great excuse for me to set my office back up after all the unplugging for ABUG! I’ll see if I can make a decent video capture from real hardware at some point too.
by kieranhj
Sun Dec 08, 2019 12:14 am
Forum: 8-bit acorn software: other
Topic: BooBip RTool 1.04 released
Replies: 13
Views: 1079

Re: BooBip RTool 1.3b released

All but the earliest versions should work with higher PAGE - which one were you using Kieran? I regularly use ADFS and DFS with RT1.02 and that was fine :? Whichever one I got with my EEPROM. :) My B is still in a box after last ABUG but I’ll check when I set it all back up (hopefully tomorrow) and...
by kieranhj
Sun Dec 08, 2019 12:07 am
Forum: 8-bit acorn software: other
Topic: BooBip RTool 1.04 released
Replies: 13
Views: 1079

Re: BooBip RTool 1.3b released

Thanks for the update! Any chance of a version that can cope with PAGE a bit > &1900 please? Several times I accidentally loaded two FS ROMs into my EEPROM so PAGE ended up ~&1B00. After that I get a ‘No Room’ error when trying to update ROM slots, which makes it a bit painful to correct my mistake.
by kieranhj
Sat Nov 30, 2019 1:08 am
Forum: past physical ABug events
Topic: ABUG SOUTH 24 to 26 January 2020: NOW FULL
Replies: 175
Views: 14660

Re: ABUG SOUTH 24 to 26 January 2020 (Hampshire) BOOKING THREAD

So soon! Oh go on then, yes, please put me down for a table from Friday through Sunday. Thanks again for organising. :)
by kieranhj
Sun Nov 24, 2019 11:44 am
Forum: new projects and releases: demoscene
Topic: New music conversion - Castlevania III
Replies: 17
Views: 2139

Re: New music conversion - Castlevania III

Great work Sarah! It was lovely to hear this on real hw at ABUG. :) Sounds amazing, like a real arcade machine and nothing like a Beeb! =D>
by kieranhj
Fri Nov 22, 2019 6:38 pm
Forum: past physical ABug events
Topic: ABUG SOUTH 22 to 24 November 2019 - NOW FULL
Replies: 179
Views: 15614

Re: ABUG SOUTH 22 to 24 November 2019 - NOW FULL

Not very Acorn, I know, but does anyone have an Amiga 1200 they could bring along this weekend please? I have a new 8mb RAM upgrade for mine but it resolutely refuses to work. It would be great to determine whether the problems lies with the RAM board or my motherboard before I (continue) complainin...
by kieranhj
Mon Nov 18, 2019 7:04 pm
Forum: 8-bit acorn hardware
Topic: OSWORD &7F on DFS vs MMFS
Replies: 26
Views: 1740

Re: OSWORD &7F on DFS vs MMFS

Actually, it seems it didn't, at least not on the Model B. Oops, oh dear, that's definitely my bad, as they say. :oops: I'm slightly disappointed that no-one complained about it for the last two years. #-o Looks like 2 sectors reads is the way to go, at least for 'fast' devices (will need to test o...
by kieranhj
Mon Nov 18, 2019 8:09 am
Forum: 8-bit acorn hardware
Topic: OSWORD &7F on DFS vs MMFS
Replies: 26
Views: 1740

Re: OSWORD &7F on DFS vs MMFS

I had a quick look at Teletext Bad Apple this afternoon (as I wanted to test the ICE-6502 in anger). On a Model B with the latest MMFS (1.44) it crashes consistently at 00:54 due to the ring buffer underflowing. Looking at why this might be, I noticed for "fast" devices the player is dynamically pa...
by kieranhj
Sun Nov 17, 2019 2:12 pm
Forum: 8-bit acorn hardware
Topic: OSWORD &7F on DFS vs MMFS
Replies: 26
Views: 1740

Re: OSWORD &7F on DFS vs MMFS

I still need to close the loop with Kieron on the Bad Apple / MMFS issues, so this may end up changing back again. Happy to do this at ABUG next weekend, a good opportunity to get to the bottom of it with the right people in the room! I also have a sneak peak of a new streaming demo so quite timely...
by kieranhj
Wed Nov 13, 2019 10:54 pm
Forum: programming
Topic: Mode 7 flip between pages
Replies: 12
Views: 1682

Re: Mode 7 flip between pages

I’m sure there are some practical posts on here or maybe the old RetroSoftware programming forum. Otherwise check out the technical details on BeebWiki: http://beebwiki.mdfs.net/Address_translation#TTX_VDU
by kieranhj
Tue Nov 12, 2019 9:09 pm
Forum: programming
Topic: Mode 7 flip between pages
Replies: 12
Views: 1682

Re: Mode 7 flip between pages

It’s been long established that with CRTC linear addressing mode, as used for MODE 7, the screen address is generally restricted to the top 1024 bytes of lower RAM, so &7C00 to &7FFF. However on Model B there is also a mapping to &3C00 which can be used for buffer swapping. Sadly this isn’t availabl...
by kieranhj
Mon Nov 11, 2019 8:45 pm
Forum: 8-bit acorn hardware
Topic: OSWORD &7F on DFS vs MMFS
Replies: 26
Views: 1740

Re: OSWORD &7F on DFS vs MMFS

Sounds like a bug/regession in MMFS/ Can you provide a few more details please, so I can try to replicate: - version of MMFS that doesn't work - version of MMFS that does work (if you can remember) - hardware configuration (Beeb, Master, etc) - brand of SD card - link to the version of the Bad Appl...
by kieranhj
Sun Nov 10, 2019 10:22 pm
Forum: 8-bit acorn hardware
Topic: OSWORD &7F on DFS vs MMFS
Replies: 26
Views: 1740

Re: OSWORD &7F on DFS vs MMFS

I can’t answer your questions #-o but I do have some to add of my own. The Teletext Bad Apple demo uses OSWORD &7F for multi-sector reads and used to work fine on MMFS (in fact I recall I had to make some changes to the way the streaming worked to accommodate) but I haven’t been able to get it runni...
by kieranhj
Mon Oct 28, 2019 10:10 pm
Forum: 8-bit acorn software: other
Topic: Game with Demo for Showing Off?
Replies: 9
Views: 908

Re: Game with Demo for Showing Off?

Prince of Persia has a cutscene and a short gameplay sequence on loop. The music gets a bit grating but you can turn the volume down with CTRL+cursor down!
by kieranhj
Wed Oct 23, 2019 8:45 pm
Forum: programming
Topic: BBC b, reading the CRT vertical sync position.
Replies: 13
Views: 2396

Re: BBC b, reading the CRT vertical sync position.

(Sorry, only a quick reply as I’m on a train.) Glad you found my write up useful. It’s not possible to read the vertical position of the raster from a CRTC register. *FX19 waits for the vertical sync interrupt which typically occurs a few rows after the end of the visible part of the screen has been...
by kieranhj
Sat Oct 19, 2019 8:50 pm
Forum: 8-bit acorn hardware
Topic: Electron Plus 3 PSU with vanilla Elk?
Replies: 4
Views: 398

Re: Electron Plus 3 PSU with vanilla Elk?

1024MAK wrote:
Sat Oct 19, 2019 8:28 pm
Yes.
Great! Thank you for confirming. I wish it didn’t hum so loudly, mind. :shock:
by kieranhj
Sat Oct 19, 2019 8:48 pm
Forum: 8-bit acorn hardware
Topic: Electron Plus 3 PSU with vanilla Elk?
Replies: 4
Views: 398

Re: Electron Plus 3 PSU with vanilla Elk?

Steve1234 wrote:
Sat Oct 19, 2019 8:18 pm
Ive been using a bog standard 19v laptop psu without any problems.
Sadly both of my laptops are USB-C ports only. #-o
by kieranhj
Sat Oct 19, 2019 8:03 pm
Forum: 8-bit acorn hardware
Topic: Electron Plus 3 PSU with vanilla Elk?
Replies: 4
Views: 398

Electron Plus 3 PSU with vanilla Elk?

Hey all, a quick question - is it safe to use the black 21V PSU for an Electron Plus 3 with a regular Electron without the Plus 3 attached? I don't have the original cream wall-wart power supply but want to remove my Plus 3 for a bit. Thought I'd check in case I'm going to fry the little thing. If n...
by kieranhj
Tue Oct 15, 2019 9:39 pm
Forum: general
Topic: Getting in touch with Partis Computing (Gary Partis)
Replies: 4
Views: 848

Re: Getting in touch with Partis Computing (Gary Partis)

For future reference, he’s also on Twitter: https://twitter.com/GaryPartis.
by kieranhj
Wed Oct 09, 2019 9:38 pm
Forum: 8-bit acorn software: classic games
Topic: Firebug, Sorcery, Boxer and Smash and Grab...
Replies: 6
Views: 749

Re: Firebug, Sorcery, Boxer and Smash and Grab...

My eyes!! :shock: 8)

With the relatively low sales numbers for Acorn machines (vs ZX Spectrum and C64 at least), I imagine authors were incentivised to crank them out in hope of a big hit!
by kieranhj
Sun Oct 06, 2019 8:50 pm
Forum: 8-bit acorn emulators
Topic: Request for testers for quick but fascinating test case
Replies: 36
Views: 3261

Re: Request for testers for quick but fascinating test case

Master Turbo, VSIRQTM = 1/1
BBC Model B issue 7, HD6845SP, R6522AP, VSIRQTM = 1/1
BBC Model B issue 4, HD6845SP, R6522P, VSIRQTM = 2/2
by kieranhj
Wed Oct 02, 2019 10:06 pm
Forum: miscellaneous new bbc and electron games
Topic: WinAGD BBC version
Replies: 4
Views: 1583

Re: WinAGD BBC version

Great job Kees! I’m glad my initial tinkerings were of some help. Well done for seeing this through to a full release, it’s clearly been a lot of work! =D>
by kieranhj
Sat Sep 28, 2019 12:06 am
Forum: past physical ABug events
Topic: ABUG SOUTH 22 to 24 November 2019 - NOW FULL
Replies: 179
Views: 15614

Re: ABUG SOUTH 22 to 24 November 2019 (Hampshire) BOOKING THREAD

\o/ Thanks for organising again JudgeBeeb. Please could you put me down for a table from Friday through Sunday.
by kieranhj
Sat Aug 31, 2019 8:24 pm
Forum: past physical ABug events
Topic: ABUG SOUTH 22 to 24 November 2019 - Save the Date - NOT A BOOKING THREAD
Replies: 8
Views: 1798

Re: ABUG SOUTH 22 to 24 November 2019 - Save the Date - NOT A BOOKING THREAD

\o/ Yay! Thanks for organising this venue again. It was a great weekend last time and so conveniently close for me at least. Look forward to the booking thread. :D
by kieranhj
Fri Aug 23, 2019 11:38 am
Forum: 8-bit acorn hardware
Topic: Sega Light Phaser on a BBC Micro
Replies: 32
Views: 2248

Re: Sega Light Phaser on a BBC Micro

Great progress Tricky! =D>

Like Mark, I have a stack of gardening jobs to do over the coming weeks before starting my new job in September. However I would love to borrow a rifle at ABUG please if anyone would be kind enough to lend one for a while.
by kieranhj
Wed Aug 21, 2019 4:41 pm
Forum: 8-bit acorn hardware
Topic: Having difficulty with TurboSPI
Replies: 16
Views: 1553

Re: Having difficulty with TurboSPI

Just FYI that although POP and SCR do blatantly abuse the 12K of HAZEL (FS) RAM they do try and step around the areas that are known to be used in a standard Master DFS/MMFS setup that leaves PAGE at &E00.

I think SCR even works on ADFS thanks to Tom Seddon!
by kieranhj
Sun Aug 18, 2019 9:04 pm
Forum: 8-bit acorn hardware
Topic: Having difficulty with TurboSPI
Replies: 16
Views: 1553

Re: Having difficulty with TurboSPI

Hey 0xC0DE, I'm surprised Twisted Brain loads (!) but in general having PAGE at &1900 on a Master is going to cause problems with more advanced software like Stunt Car Racer (and Prince of Persia) that requires PAGE at &E00 and all 4x available slots of SWRAM (plus ANDY and a chunk of HAZEL for good...
by kieranhj
Sun Aug 18, 2019 6:13 pm
Forum: 8-bit acorn hardware
Topic: Testing all RAM in a Master 128
Replies: 4
Views: 524

Re: Testing all RAM in a Master 128

Can you post a screenshot? My bad but TB kinda assumes a fresh boot in either MODE 7 or one of the 20K screen modes. Too much testing on an emulator rather than real hw! If you have the VLSI variant 6845 CRTC chip then it is known not to behave ‘correctly’ compared to the other manufacturers, eg Hit...
by kieranhj
Sat Aug 17, 2019 5:53 pm
Forum: introduce yourself
Topic: Hello from San-Diego!
Replies: 11
Views: 1027

Re: Hello from San-Diego!

Welcome to the forum Vincent - San Diego is a long way from home!

I have to confess Elminster's avatar reminds me of my old Nest thermostat, although I'm sure that's not the intention. :oops:
by kieranhj
Wed Aug 14, 2019 6:34 pm
Forum: general
Topic: Today I received.....
Replies: 5988
Views: 612008

Re: Today I received.....

OK, OK, I know I’ve been on a bit of a binge recently but I do need a backup Master and couldn’t resist the sweet cherry keyboard...

Last one for a while, I promise!! :^o

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