Search found 3261 matches

by tricky
Tue Mar 19, 2019 10:32 pm
Forum: introduce yourself
Topic: Acorn Electron fan, just joined
Replies: 18
Views: 196

Re: Acorn Electron fan, just joined

Welcome,
have you tried beebasm?
Confession time, who else checked Martin's maths? :lol:
by tricky
Tue Mar 19, 2019 8:23 pm
Forum: introduce yourself
Topic: Hello
Replies: 10
Views: 99

Re: Hello

Welcome,
they are good for driving simple electronic devices, either via the user port (5v) or the new I2C analogue port passthrough adapter.
They also play games bbcmicro.co.uk
by tricky
Tue Mar 19, 2019 8:21 pm
Forum: introduce yourself
Topic: Hello I am new :-)
Replies: 10
Views: 110

Re: Hello I am new :-)

Welcome James, and thanks for bringing the average age down ;)
by tricky
Mon Mar 18, 2019 1:38 pm
Forum: hardware
Topic: Where to get a none yellowed case - retrobright?
Replies: 8
Views: 145

Re: Where to get a none yellowed case - retrobright?

I did one of mine a couple of years ago and it seems to still be fine. It was brown, otherwise I wouldn't have bothered, but now fits in the middle of my range of beige beebs. I didn't use cling film, but kept touching up the bblonde every 20 mins or so for a couple of hours. I've heard people compl...
by tricky
Sun Mar 17, 2019 4:32 pm
Forum: hardware
Topic: BBC B+ 64K upgrades and expansions
Replies: 14
Views: 451

Re: BBC B+ 64K upgrades and expansions

I've added a B version too.
by tricky
Sun Mar 17, 2019 4:26 pm
Forum: hardware
Topic: Adding an audio jack to a master or B/B+
Replies: 1
Views: 130

Re: Adding an audio jack to a master or B/B+

And for the model B, this is my current solution: Similar "adaptor", but with the output 90 degrees to the input so that the speaker connects in the same direction as the Master. Because it is under the keyboard I have added a blob of hot-glue to protect against shorts if the keyboard is sat on :lol...
by tricky
Sun Mar 17, 2019 1:22 pm
Forum: software: new games
Topic: Doom?
Replies: 88
Views: 2866

Re: Doom?

For the 256 colour palette mapping, the best I could find was (basically an octree) to find the "longest" (or most populous) axis through the colour space, then the longest perpendicular to that giving the third. Then split the longest axis (doubling its partitions), repeat another three times and "...
by tricky
Sun Mar 17, 2019 10:12 am
Forum: general
Topic: Remarkable videos recently posted on Youtube
Replies: 209
Views: 22728

Re: Remarkable videos recently posted on Youtube

DutchAcorn wrote:
Sun Mar 17, 2019 9:10 am
Not youtube, but I liked this one: https://www.facebook.com/bbctwo/videos/ ... 06?sfns=mo
The teacher annoyed me with something like: "That's rubbish, you have to look up how to do things in a book"
by tricky
Sun Mar 17, 2019 9:48 am
Forum: software: new games
Topic: Doom?
Replies: 88
Views: 2866

Re: Doom?

I was thinking &1100 for the model B/B+ versions as I was assuming DFS.
by tricky
Sun Mar 17, 2019 7:15 am
Forum: introduce yourself
Topic: Somewhat belated hello
Replies: 13
Views: 223

Re: Somewhat belated hello

Welcome,
Time is definitely a precious commodity, but even when I have had a hard days C++, I still enjoy my 6502 and vice versa :shock:
by tricky
Sun Mar 17, 2019 7:02 am
Forum: software: new games
Topic: Doom?
Replies: 88
Views: 2866

Re: Doom?

So with "vrirtical rupture", you could have PAGE at &1100 if the screen was 154 wide and without only 142 unless you shrink it vertically too. What is the next size down and what difference would it make to the frame rate? For anyone wanting "simple" double buffering on a model B/B+, this assumes a ...
by tricky
Sat Mar 16, 2019 10:30 pm
Forum: software: new games
Topic: Doom?
Replies: 88
Views: 2866

Re: Doom?

What resolution are you going for for each of the game and status areas?
How much memory do you need for your code etc?
by tricky
Sat Mar 16, 2019 9:07 pm
Forum: software: new games
Topic: Doom?
Replies: 88
Views: 2866

Re: Doom?

Great news Rob, does colour or greyscale look better on the beeb?
by tricky
Sat Mar 16, 2019 5:35 pm
Forum: introduce yourself
Topic: Hello!
Replies: 9
Views: 117

Re: Hello!

Welcome, do you still have any of the others?
by tricky
Sat Mar 16, 2019 1:59 pm
Forum: projects
Topic: Castle Defender -> Atari conversion
Replies: 29
Views: 1670

Re: Castle Defender -> Atari conversion

Looks great.
I think the beeb might be the only 8-bit with 256 vertical resolution.
by tricky
Sat Mar 16, 2019 1:55 pm
Forum: hardware
Topic: BBC B+ 64K upgrades and expansions
Replies: 14
Views: 451

Re: BBC B+ 64K upgrades and expansions

I've just posted Adding an audio jack to a master which is basically the same as when I add them to the beeb, except I hot glue them into the air vent and the adaptor is slightly different. IIRC I connect the audio channels to the SCART pins with 10K resistors, but they were suggested in a thread on...
by tricky
Sat Mar 16, 2019 1:49 pm
Forum: hardware
Topic: Adding an audio jack to a master or B/B+
Replies: 1
Views: 130

Adding an audio jack to a master or B/B+

I have added audio jack sockets to most of my beebs and connect these to my SCART cables with a jack that when inserted disconnects the internal speaker. Even though the master already has an audio out, I wanted it to use the same SCART leads as my beebs and also to disconnect the speaker when a jac...
by tricky
Fri Mar 15, 2019 10:29 pm
Forum: introduce yourself
Topic: Hello!
Replies: 14
Views: 195

Re: Hello!

Welcome, I started on a vic-20, but like you, it was my model B that is still my one true love.
by tricky
Fri Mar 15, 2019 10:26 pm
Forum: hardware
Topic: BBC B+ 64K upgrades and expansions
Replies: 14
Views: 451

Re: BBC B+ 64K upgrades and expansions

I add a headphone jack socket and then intercept the audio and send it to the jack socket and back so that if no headphones or the jack I add to the scart lead are not plugged in, the audio comes from the beeb speaker. I'm sure I have posted some pics, but can only find my master compact ones on here.
by tricky
Fri Mar 15, 2019 12:10 pm
Forum: development tools
Topic: Ghidra disassembler
Replies: 4
Views: 144

Re: Ghidra disassembler

Do you think it is better than IDA?
I haven't really given it a chance, but IDA certainly has its querks.
by tricky
Fri Mar 15, 2019 6:45 am
Forum: hardware
Topic: Putting together a GOTEK, what do I need...
Replies: 17
Views: 421

Re: Putting together a GOTEK, what do I need...

One thing with my menu is that it uses indexed (?) Mode, is probably best kept on a separate stick so that you can use nice directories and file names on the other unless FF has added new features. PS I received one of those 40 way cales yesterday that I ordered to make power leads for my gotek and ...
by tricky
Thu Mar 14, 2019 7:16 pm
Forum: software: games - high scores
Topic: High Score Challenge S11 - R5 - Missile Base
Replies: 39
Views: 766

Re: High Score Challenge S11 - R5 - Missile Base

Only had one go, but I need to find a better joystick! 14140
by tricky
Thu Mar 14, 2019 6:15 pm
Forum: hardware
Topic: Putting together a GOTEK, what do I need...
Replies: 17
Views: 421

Re: Putting together a GOTEK, what do I need...

You need to get power to the GOTEK, this can come internally or from the external power connector on the beeb (there is a thread with a part number). I would update the firmware to the latest FlashFloppy firmware - there is a reasonable video. You also need a floppy ribbon cable, the non-twisted par...
by tricky
Thu Mar 14, 2019 6:05 pm
Forum: hardware
Topic: BBC B+ 64K upgrades and expansions
Replies: 14
Views: 451

Re: BBC B+ 64K upgrades and expansions

Speech chip and maybe ROM? There was a 64K ram expansion to make the 64 into a 128. Take a look at the boobip selection, unless you like DIY, in which case maybe an EEPROM. If you are planning on SCART, maybe make the audio available to send to a TV. If not and don't fancy a VideoNuLA, maybe an RGB2...
by tricky
Thu Mar 14, 2019 6:34 am
Forum: hardware
Topic: Fitting external upgrades internally
Replies: 5
Views: 201

Re: Fitting external upgrades internally

Is there any difference between using the external power connector and the internal via connectors with both male and female parts?
by tricky
Wed Mar 13, 2019 1:07 pm
Forum: off-topic
Topic: Acorn Art Thread
Replies: 664
Views: 44378

Re: Acorn Art Thread

I love end of day and darkside from your recent ones.
by tricky
Wed Mar 13, 2019 1:04 pm
Forum: hardware
Topic: Master audio noise
Replies: 13
Views: 198

Re: Master audio noise

If you have two 470ohm resistors, you can put them in series for .94kohm ;)
by tricky
Tue Mar 12, 2019 7:48 am
Forum: introduce yourself
Topic: Hello from Brisbane Australia
Replies: 15
Views: 261

Re: Hello from Brisbane Australia

For pictures, PNG or jpeg not to big, Dean and drop or use the attachments tab below.
by tricky
Tue Mar 12, 2019 7:43 am
Forum: projects
Topic: Castle Defender -> Atari conversion
Replies: 29
Views: 1670

Re: Castle Defender -> Atari conversion

Looks great, isn't there room at the sides?
by tricky
Mon Mar 11, 2019 5:01 pm
Forum: wanted
Topic: Wanted - master rear port surround
Replies: 7
Views: 123

Re: Wanted - master rear port surround

I don't have a spare, and both of mine have battery damage if it is where I think it is.