Search found 146 matches

by joachim
Sat Oct 20, 2018 2:07 am
Forum: general
Topic: Best Basic Games
Replies: 12
Views: 517

Re: Best Basic Games

Manic Mole is one of the first BBC/Electron games I ever had so I could be biased, but it's an all-Basic platformer that runs very nicely. Possibly the only game that manages to run at a playable speed in VDU 5 mode …
by joachim
Sun Oct 14, 2018 9:52 am
Forum: bbcmicro.co.uk
Topic: Game information - help required
Replies: 23
Views: 824

Re: Game information - help required

Gladiator displays "(C) BEEBUG" when it starts. And the listing of Sea Battle contains the notice "(C) YOUR COMPUTER". And the loader for Millipede has an Acornsoft copyright notice (unless you think it's another fake like Crazy Balloon). And the listing of "Caves of Trall" contains some comments in...
by joachim
Sun Oct 14, 2018 9:17 am
Forum: software: classic games
Topic: Favourite/best games list
Replies: 88
Views: 15626

Re: Favourite/best games list

Top ten: Elite Dunjunz Ricochet (I can't believe this isn't in anyone's list) Exile Imogen Repton 3 Citadel Repton Infinity Jet Set Willy Thrust The next dozen: (because it was so hard to choose) Galaforce 2, Galaforce, Bonecruncher, Repton, The Sentinel, Spycat, XOR, Inertia, Ravenskull, Pipeline,...
by joachim
Sat Oct 13, 2018 7:01 pm
Forum: software
Topic: Combining sprites in RiscOS
Replies: 4
Views: 414

Re: Combining sprites in RiscOS

Just in case anyone wants to construct a general solution, the sprite file format is (obliquely) documented in the PRMs at http://www.riscos.com/support/developers/prm/sprites.html. (Note in "Technical Details", the sentence "The format of the file created by a *ScreenSave or *SSave command is the s...
by joachim
Fri Oct 12, 2018 10:31 pm
Forum: programming
Topic: The book of listings -Numbfinger
Replies: 7
Views: 267

Re: The book of listings -Numbfinger

well, I will be deciphering that one a bit further down the line. It actually just calls *FX 122 in a loop until it gets back the value 255. It looks scary because although Acorn provided *FX as a friendly way of making OS calls, they didn't provide any nice way of reading the result of an OS call ...
by joachim
Fri Oct 12, 2018 4:25 pm
Forum: programming
Topic: The book of listings -Numbfinger
Replies: 7
Views: 267

Re: The book of listings -Numbfinger

Right, now I look at the whole listing I agree with you: line 230 to ignore previous input is OK but line 240 is getting a keypress and throwing it away, which is obviously wrong at this point in the program. (My line 240 above also does that, because I didn't look at the context.) If I were writing...
by joachim
Thu Oct 11, 2018 7:42 pm
Forum: programming
Topic: The book of listings -Numbfinger
Replies: 7
Views: 267

Re: The book of listings -Numbfinger

240 waits for a key to be pressed before advancing. 230 is supposed to make sure that the user doesn't accidentally advance due to either (i) having a key already held down when line 240 is reached or (ii) having previously pressed a key which is still in the keyboard buffer. I think preventing (i) ...
by joachim
Fri Sep 21, 2018 4:33 pm
Forum: bbcmicro.co.uk
Topic: author name correction
Replies: 6
Views: 368

Re: author name correction

Great! I didn't notice there was "Stephen Martin" as well but what you've done sounds exactly right. The only thing that could possibly be better is assigning each author an ID number and page so that the user can distinguish between people with potentially similar names, as everygamegoing tries to ...
by joachim
Fri Sep 21, 2018 2:07 am
Forum: bbcmicro.co.uk
Topic: author name correction
Replies: 6
Views: 368

author name correction

I just thought I'd point out that Get Set Santa by S. Martin (http://bbcmicro.co.uk/game.php?id=1410) is very obviously by the same author as Super Digga by Steve Martin (http://bbcmicro.co.uk/game.php?id=1583), seeing as the screen layout in the screenshots is identical (including author attributio...
by joachim
Fri Aug 31, 2018 7:45 pm
Forum: archive requests
Topic: Instructions wanted for Andrew Flintham games
Replies: 2
Views: 185

Re: Instructions wanted for Andrew Flintham games

You could try contacting Andrew through his domain level7.org.uk (although it hasn't been updated in years so who knows).
by joachim
Sat Aug 11, 2018 5:38 pm
Forum: introduce yourself
Topic: Hello!
Replies: 17
Views: 511

Re: Hello!

We played some sort of maths game that involved trains on it if I remember correctly! I realise you didn't ask, but if your game was TRAINS from the Microprimer collection — a classroom favourite when I was in primary school, slightly longer ago — then it's on BBC PD disc 159 which you can download...
by joachim
Mon Jul 16, 2018 2:27 pm
Forum: software: classic games
Topic: Mystery of the missing Exile mail-in cards
Replies: 7
Views: 820

Re: Mystery of the missing Exile mail-in cards

I certainly didn't get these cards with either of my Exiles, one of which came free with a year's subscription to Micro User . (The other was second-hand so it's not conclusive.) I did get mail-in cards with my Repton Infinity, which came either from Impact Games or another discount mail-order compa...
by joachim
Sun Jun 17, 2018 4:47 pm
Forum: programming
Topic: English wordlist checker
Replies: 2
Views: 228

Re: English wordlist checker

Yes! I initially didn't see how to combine stemming with the Bloom filter lookup without using more memory, but I think it's workable. You would have entries in the wordlist with special characters, for example "FILTER*" means filter and filters and filtering and filtered. Then when the lookup code ...
by joachim
Sun Jun 17, 2018 1:40 am
Forum: programming
Topic: English wordlist checker
Replies: 2
Views: 228

English wordlist checker

BITD "everyone knew" that if you implemented a game like Scrabble or Boggle, it wasn't practical to include a full English wordlist — there just isn't memory to have a list that's complete enough to be convincing. I started thinking about how well you could solve this problem with Bloom filters — th...
by joachim
Wed Jun 13, 2018 4:40 pm
Forum: software: classic games
Topic: Most disappointing conversions from other systems
Replies: 62
Views: 4723

Re: Most disappointing conversions from other systems

Footballer of the Year was notorious because versions for other systems had an arcade action component that was totally missing in the BBC/Electron conversion … despite the promises of the cassette inlay. At one point there was a letter complaining about this in Electron User (https://archive.org/s...
by joachim
Wed Jun 13, 2018 4:28 pm
Forum: software: classic games
Topic: Trying to locate old game "Caves"
Replies: 7
Views: 574

Re: Trying to locate old game "Caves"

It was a graphic adventure with enemies that would drain your health and leave debris if you walked into them, meaning you'd have to walk around the debris or leave and come back for it to disappear. There was an upper level of the maze and a lower level, and you had to collect four items on the up...
by joachim
Mon May 07, 2018 8:47 pm
Forum: hardware
Topic: Resurrect BBC Micro
Replies: 6
Views: 429

Re: Resurrect BBC Micro

Thanks for the link. I tried setting the jumper too south and the machine won't boot. Long beep sound. Oh right, on closer examination of the documentation for S25 (see also another good thread about bad RAM, http://stardot.org.uk/forums/viewtopic.php?t=2190&start=30), that's what we'd expect, beca...
by joachim
Mon May 07, 2018 6:20 pm
Forum: hardware
Topic: Resurrect BBC Micro
Replies: 6
Views: 429

Re: Resurrect BBC Micro

The images help a lot! It looks as if the character generator is getting a bad value for bit 4 of each character (bit 4 = 1 most of the time when it should be 0). Thus space becomes '0', "BBC" becomes "RRS" and so forth. Although it looks as if the correct values are also flickering in and out. This...
by joachim
Thu Apr 19, 2018 12:23 am
Forum: software: new games
Topic: Maze of Madness
Replies: 27
Views: 3047

Re: Maze of Madness

Oh, my goodness, that is evil. Like others, I found a loophole to win the game the first time, but suspected it wasn't the real solution because it didn't seem to match up with the in-game HINTs. (Although now, having solved the puzzle properly, I don't think the hints ended up helping me much.)
by joachim
Thu Mar 22, 2018 2:25 am
Forum: bbcmicro.co.uk
Topic: Games that don't work in jsbeeb
Replies: 32
Views: 4209

Re: Games that don't work in jsbeeb

Southern Belle and Evening Star only 99% work in jsbeeb from the "Play" link. The bug is that if you start the game then hit 'T' to display the timetable screen, half of the bottom line of text is cut off. Playing at godbolt.org with the STH disc image doesn't have this problem, so I assume it's due...
by joachim
Wed Mar 21, 2018 3:32 pm
Forum: programming
Topic: BBC Changing Coordinate system from 0-1024,0-1280
Replies: 12
Views: 832

Re: BBC Changing Coordinate system from 0-1024,0-1280

You could intercept OSWRCH, and rescale the coordinates any time you see VDU 25 (or 24 or 29, if you care about those). I don't think there's a simpler way.
by joachim
Fri Feb 16, 2018 10:27 pm
Forum: general
Topic: Computer Shops From Back In The Day
Replies: 92
Views: 9944

Re: Computer Shops From Back In The Day

chinnyhill10 wrote:moved the counter to the opposite wall. This was an attempt to turn around
That's not what "turn a failing business around" usually means …
by joachim
Wed Feb 07, 2018 7:32 pm
Forum: archive submissions
Topic: SLID
Replies: 8
Views: 1114

Re: SLID

I see SLID is now on bbcmicro.co.uk — thanks Lee/Mick? I thought of one more possible correction — it runs rather slowly on the original model B, which is funny because there's a deliberate delay in line 140: 140 A = INKEY(12):IF A=44 THEN D=D-1*8*(D=0) I suspect that the 12 here is another change t...
by joachim
Wed Jan 24, 2018 9:52 pm
Forum: emulators
Topic: MODE 7 on RISC OS BBC Emulator 6502em
Replies: 15
Views: 1189

Re: MODE 7 on RISC OS BBC Emulator 6502em

That probably suggests that !6502Em is working properly. I'm not sure what happens on a real Beeb if you issue COLOUR commands in Mode 7, either it issues the VDU sequence but nothing happens, or it suppresses the VDU sequence because it's in Mode 7. It issues the VDU sequence with (usually) no not...
by joachim
Mon Jan 01, 2018 2:25 am
Forum: archive submissions
Topic: SLID
Replies: 8
Views: 1114

Re: SLID

Maybe it was true in OS 0.10 though? Or at least it was the way they were thinking at the time — that would explain the earlier User Guide entries. Which set of values does OSBYTE 135 return in OS 0.10?) Turns out richardtoohey in this thread confirmed my suspicions: the 224–255 range is returned i...
by joachim
Mon Jan 01, 2018 12:33 am
Forum: archive submissions
Topic: Acorn User 1-liner games.
Replies: 2
Views: 348

Re: Acorn User 1-liner games.

leenew wrote:Game 5, Zander, may be a joke which doesn't do anything game-like!
It's parodying the early Archimedes game Zarch (aka Lander). It's extra-unplayable because (on top of it running far too fast) you have to start hitting RETURN within the first second or you'll crash into terrain.
by joachim
Sun Dec 31, 2017 8:20 am
Forum: hardware
Topic: Random pixels on BBC Model B
Replies: 60
Views: 2045

Re: Random pixels on BBC Model B

EDIT 2/ More weird (until understood) symptoms; 1. In Mode 1 and 5, the red triangle shows massive 'pixelation' as per screenshot above. 2. In mode 2 red is OK but now only YEllow shows the pixels. 3. Mode 4 is OK. This actually makes a glimmer of sense. Because for red in MODE 1 or MODE 5, the bit...
by joachim
Fri Dec 22, 2017 3:11 am
Forum: bbcmicro.co.uk
Topic: Games that don't work in jsbeeb
Replies: 32
Views: 4209

Re: Games that don't work in jsbeeb

A tiny failure: the "Play" link in Ghouls of Azzod, http://bbcmicro.co.uk/game.php?id=599 , doesn't result in a functional game, just a black screen in jsbeeb. Incomprehensibly, the game loads fine if you press SHIFT-BREAK from this screen, or if you BREAK and *EXEC !BOOT. It's just the autoboot st...
by joachim
Fri Dec 22, 2017 12:25 am
Forum: archive submissions
Topic: SLID
Replies: 8
Views: 1114

Re: SLID

Any chance of the BBC version as a .ssd image being posted please? regards, Mick. Try this SSD which I have built with BeebAsm and tested with jsbeeb. It includes the fix I posted upthread, but be aware that the fix is in the !BOOT file not in the main program, so if you try to CHAIN "SLID" directl...
by joachim
Wed Dec 20, 2017 1:58 pm
Forum: archive submissions
Topic: SLID
Replies: 8
Views: 1114

Re: SLID

… and besides I thought there was an issue with recognizing user-defined characters because some of them are aliased to each other in *FX 20,0 mode … That's the classic mistake people made of defining CHR$128-159 and then printing CHR$224-255 (or the other way around) and wondering why what was on ...