Search found 2546 matches

by tricky
Thu Jul 19, 2018 9:56 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 210
Views: 7582

Re: RGB to HDMI using a Pi Zero and a small CPLD

Why does changing the sync pulse width on a crt but not it's start move the image by exactly (as far as I can tell) half the change in width.
by tricky
Thu Jul 19, 2018 6:39 pm
Forum: hardware
Topic: SCART image quality
Replies: 9
Views: 188

Re: SCART image quality

...There are no options to turn off smoothing on the Samsung monitor either... Are there any options for sharpness or sometimes contrast enhancements? I have an LCD that doesn't like my beeb's signal much, the picture slides from side to side and blanks completely sometimes. If I increase the h-syn...
by tricky
Thu Jul 19, 2018 6:27 pm
Forum: acorn atom
Topic: new to atom: ram rom mmc joystick power
Replies: 22
Views: 348

Re: new to atom: ram rom mmc joystick power

My power sockets arrived today, so I trimmed one a little and hot glued it in my ATOM to see if it is OK. My cunning plan it to mount the MMC sticking out through where the video and power would have been (composite is through RF connector). At first, it didn't work, which turned out to be that only...
by tricky
Wed Jul 18, 2018 10:34 pm
Forum: introduce yourself
Topic: Hi!!
Replies: 12
Views: 129

Re: Hi!!

Welcome, glad you've joined us.
Have you tried prince of Persia yet, or any of the other homebrew on bbcmicro.co.UK that doesn't come on the mmc?
by tricky
Wed Jul 18, 2018 10:28 pm
Forum: software: other
Topic: Music software?
Replies: 9
Views: 182

Re: Music software?

I know nothing about music, but to get you started: There is muproc . You could possibly use a Sega master system tracker, export to vgm and then use the vgm player on the beeb to play it back. There is lots of info about the SN76489 on smspower. Edit: sorry the above post came in while I was typing...
by tricky
Wed Jul 18, 2018 6:01 pm
Forum: introduce yourself
Topic: Hello from Basingstoke!
Replies: 10
Views: 98

Re: Hello from Basingstoke!

Welcome, I think most of us are familiar with time issues and real life getting in the way.
by tricky
Wed Jul 18, 2018 1:05 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 210
Views: 7582

Re: RGB to HDMI using a Pi Zero and a small CPLD

I was thinking of getting a zero W, but I would want to swap it for a PiTubeDirect CoPro as that seems like a place where the W might be useful.
by tricky
Tue Jul 17, 2018 5:18 pm
Forum: development tools
Topic: Beebasm requests
Replies: 9
Views: 162

Re: Beebasm requests

...BTW Really loving beebasm and Visual Studio Code as a dev environment. I use Visual Studio on a day to day basis, and couldn't even think about going back to the BBC Basic editor / environment! I'd also be interested to know how people are debugging Beeb code using PC emulators / dev environment...
by tricky
Tue Jul 17, 2018 4:28 pm
Forum: introduce yourself
Topic: Hello!
Replies: 17
Views: 257

Re: Hello!

That's great, I look forward to hearing your beeb tracks.
by tricky
Mon Jul 16, 2018 8:16 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 210
Views: 7582

Re: RGB to HDMI using a Pi Zero and a small CPLD

Well done.
by tricky
Mon Jul 16, 2018 8:10 pm
Forum: introduce yourself
Topic: Hello!
Replies: 17
Views: 257

Re: Hello!

Welcome, although I usually do arcade ports and try to keep the music similar, I never write it myself. I'm doing scramble at the moment, which doesn't really need music and it would be tricky as I am using one channel for "womwom", one for bombs and one for shooting with explosions taking the white...
by tricky
Mon Jul 16, 2018 4:10 pm
Forum: introduce yourself
Topic: Atom Owner from Smalltown, Canada
Replies: 20
Views: 238

Re: Atom Owner from Smalltown, Canada

Welcome, there have been a few of us just got ATOMs.
Did you program in BASIC or assembler?
by tricky
Mon Jul 16, 2018 4:08 pm
Forum: hardware
Topic: 2nd User port for Beeb?
Replies: 96
Views: 6198

Re: 2nd User port for Beeb?

Don't know if this is still useful! It's a bit early and I've woken after dreaming what I'm about to write so forgive me if it's nonsense! Would it be possible to change the pins on the user port used by UPURS or MMBEEB so that they don't clash as they do at present and have them both work off one u...
by tricky
Mon Jul 16, 2018 12:09 pm
Forum: software: new games
Topic: Atomic AGD
Replies: 60
Views: 3404

Re: Atomic AGD

Did the sprite plotting get optimised?

If you want 50+Hz playback on youtube, the source has to be 720p+, as does the playback.
by tricky
Sun Jul 15, 2018 6:13 pm
Forum: software: new games
Topic: New version of Scramble for the beeb (going well)
Replies: 64
Views: 3518

Re: New version of Scramble for the beeb (going well)

Is it just the picture, or is there a problem with scramble?
by tricky
Sun Jul 15, 2018 6:10 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 210
Views: 7582

Re: RGB to HDMI using a Pi Zero and a small CPLD

Does PLLH allow the 50hz to be adjusted?
Might it be possible to remove the frame delay in the future?
by tricky
Sun Jul 15, 2018 4:02 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 210
Views: 7582

Re: RGB to HDMI using a Pi Zero and a small CPLD

I've always thought that the TV uses the centre of the pulse. If it is easier to only support 7 or 8, rather than start + 1/2 width, I can change the rally-x default. I thought one of the scramble clones might have and maybe JCB digger. I have some old code and I suspect richtw might. Astro blaster ...
by tricky
Sun Jul 15, 2018 3:21 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 210
Views: 7582

Re: RGB to HDMI using a Pi Zero and a small CPLD

I'm not near a beeb, but I would expect making the pulse wider would delay the effective timing and move the visible pixels to the left.

I believe rally-x works in the same way as 3d pool's scrolls, although i do tidy the sides.
by tricky
Sun Jul 15, 2018 3:09 pm
Forum: software: new games
Topic: New version of Scramble for the beeb (going well)
Replies: 64
Views: 3518

Re: New version of Scramble for the beeb (going well)

Glad it works.
How is your event going?
Looks a bit quiet ;)
by tricky
Sun Jul 15, 2018 12:36 pm
Forum: software: new games
Topic: New version of Scramble for the beeb (going well)
Replies: 64
Views: 3518

Re: New version of Scramble for the beeb (going well)

No changes to timing, but I have added hitting the saucers and their explosions (this took ~200 bytes). I think the main TODOs are: - player lives and deaths - shot, bomb and explosion sounds - joystick support - launching rockets - killing the base - fuel! I have 303 bytes left and some stack space...
by tricky
Sun Jul 15, 2018 12:27 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 210
Views: 7582

Re: RGB to HDMI using a Pi Zero and a small CPLD

I nearly always change the h-sync pulse position as my screen is usual 4/5 the default width. I think supporting this for modes 0, 1 and 2 is most useful, after that the jump is quite large and software is more feasible. I will be offering other options for width and position in Rally-X, but having ...
by tricky
Sat Jul 14, 2018 6:46 pm
Forum: acorn atom
Topic: new to atom: ram rom mmc joystick power
Replies: 22
Views: 348

Re: new to atom: ram rom mmc joystick

I already did ;)
by tricky
Sat Jul 14, 2018 6:32 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 210
Views: 7582

Re: RGB to HDMI using a Pi Zero and a small CPLD

Main Tis is1920x1080, can't check monitor at the mo.
I did have a mad thought about the new 1024x768 HDMI panel and adapter from pimoria pimoroni and a luggable Beeb.

EDIT: I also have a 1920x1200 DVI monitor.
by tricky
Sat Jul 14, 2018 3:16 pm
Forum: acorn atom
Topic: new to atom: ram rom mmc joystick power
Replies: 22
Views: 348

Re: new to atom: ram rom mmc joystick

AtomMmc arrived today, had to bodge a power connector (which hasn't arrived yet) as I couldn't wait to try it. AtomMmc.jpg Was the original idea to solder it to the connector instead of the ribbon cable? I'm trying to find a good place to mount it, current options are: Leave it internal attached to ...
by tricky
Sat Jul 14, 2018 11:42 am
Forum: software: other
Topic: TMS-5220 & Arcade Speech ROMS
Replies: 19
Views: 438

Re: TMS-5220 & Arcade Speech ROMS

Great video, shame its 25Hz, but I guess 99% of the content is fine and 99% of people wouldn't notice the 1% wasn't at 50Hz anyway ;)
by tricky
Fri Jul 13, 2018 10:42 pm
Forum: projects
Topic: Elite BeebAsm Source
Replies: 16
Views: 525

Re: Elite BeebAsm Source

Thanks Kieran, top man (not the shop).
by tricky
Thu Jul 12, 2018 9:46 am
Forum: software: new games
Topic: Galaforce 3 Teaser
Replies: 9
Views: 394

Re: Galaforce 3 Teaser

Nice, I've been waiting for this ;)
by tricky
Wed Jul 11, 2018 9:26 pm
Forum: hardware
Topic: New Master Setup
Replies: 3
Views: 208

Re: New Master Setup

Nice.
It's nice to be comfortable at your beeb.
by tricky
Wed Jul 11, 2018 5:48 pm
Forum: introduce yourself
Topic: Just saying Hi
Replies: 11
Views: 268

Re: Just saying Hi

Welcome. If you had a beeb at home, an RGB to SCART cable and portable CRT from the charity shop do quite well, but not if it was at school I guess. Mode Daves = more chance of guessing someones name as I can never remember them! If you haven't already found it, bbcmicro.co.uk has nearly everything ...
by tricky
Wed Jul 11, 2018 5:40 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 210
Views: 7582

Re: RGB to HDMI using a Pi Zero and a small CPLD

I have some 6 pin dins for my RGB to SCART cables and am happy to make my own cable if it helps.