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Lumpbucket

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Posts posted by Lumpbucket

  1. Posted

    Hi,

     

    Is there a lynx flashcart? I'm bidding on a Lynx on eBay and want to code for it.

     

    Also, is the original Amiga devkit software downloadable? I actually use Amigas still out of choice (never stopped enjoying them ;-) ), and that would be awesome to use the original kit. Otherwise i'll use the Amiga port of DASM, i guess.

     

    Cheers,

    Pete

  3. Posted · Edited by Lumpbucket

    TBH, I don't know. I have a feeling the geekgadgets C lib requires 2.0, so unless you specified no startup code it wouldn't work... but then of course you'd have to replace all the C lib functions with calls to similar OS functions. I haven't used anything older than 3.1 in a long long time myself, and mostly just use 4.0 these days.

  4. Posted

    Just out of curiousity, what are you using to compile for 68k Amigas ? DICE ?

    908199[/snapback]

     

    I use GCC 3.4.4 on OS4, and GCC 2.95.3 on OS3.x. I sometimes also use VBCC 0.8i on both, depending on my mood ;-)

  7. Posted

    Actually, having thought about this some more... the 2600 AtariVox would probably work as-is with the 7800.. just plug it in... but a 7800 AtariVox could be made that attached as a pass-through cartridge. The advantage being that the AtariVox sound would be mixed with the ordinary TIA sound. Also, it could provide 7800 high score cartridge emulation as well as general purpose flash rom.

  8. Posted

    I noticed in the Beef Drop thread there was talk of using Pokey sound, but that would require cannibalising Ballblazer carts for chips. Well, is there any reason why the sound chip HAS to be pokey? Couldn't a cart PCB be made up for other sound chips? What about that chip used in the AtariVox? Couldn't that be placed inside a 7800 cart? Surely there must be low cost sythesizer chips that could be used?

  11. Posted

    Odd, the link works fine here.

     

    When you get 800,000 + the "extra bonus" interval (set on dip switches) it erroneously gives you 176 extra bases, and also 156 when you wrap the score.

     

    Initially they were just wondering exactly what caused the bug, for the sake of interest. Now, being programmers, they noticed that it would be a bit tricky to fix the bug and keep within the ROM size. And you know programmers when they're presented with a challenge ;-)

  13. Posted

    Thanks for the links Thomas, your support is very much appreciated. Unfortunately right now I don't have time to fix videobrewery, since I have some websites to create that am I doing for paying clients. Unfortunately this means my hobby sites, including Videobrewery, have to take a lower priority :-(

     

    I hope to get onto it soon, though.

  14. Posted

    Thanks Paul! Your support is very much appreciated. I'll work on rebuilding the databases sometime this weekend. It won't be fun since i'll have to reverse engineer the tables from the php code; muggins here didn't keep a record of them... *sigh*

     

    Still... some lessons learned I feel. I'm just so angry I lost it because of some pathetic "script kiddy" having a laugh...

  15. Posted

    This morning some bastard hacked the host of videobrewery.com. It is not yet known who or why. The html and images have been reinstated, but the MySQL database has been lost. All projects, and project diaries, features, news items, the lot are gone, and they cannot be restored.

     

    It is hosted on a box owned by my friend. The advantage being PHP & MySQL hosting for free. The downside that there is no backup of my MySQL database. It is now backed up hourly to a different machine, but its a bit late now...

     

    I am really annoyed right now as the site was just starting to become popular. I just don't know what to do with it. I'm really sad not because of losing my work, but because people had really interesting project diaries hosted there, especially Soeren's KTAA diary.

     

    If I do restore the site, as I said, the database will be backed up hourly, and it will probably be done from scratch, but right now i'm not sure if I have the time since I have several other sites that need my attention. Those other sites are for money, Videobrewery was just for fun.

     

    :-(

  16. Posted

    Or write Amiga and ask how to make the Joyboard work on one of their workstations, or better yet, the A500.

     

    The joyboard should work out of the box with an A500, AFAIK. As to getting it to work on their current machines, the Catweasel PCI card has 2 9-pin joystick ports to which you could connect one.

  19. Posted

    When I was a kid, I always wanted to design my own computer. To me, that would have been the most awesome thing in the world.

     

    Since I learnt program in many different dialects of assembler, and got a grasp of system architecture etc. I've tried a couple of times to invent my own systems just for fun.

     

    A few years ago, I invented a 6502 based games console, wrote an emulator for the Amiga and made a couple of games (TRON lightcycles with computer AI in 1 player mode, space invaders, a boulderdash engine). It was fun, but I cut a few corners. The display and sound mapped quite easily to the Amigas native graphics with a little tweeking. (I can upload that this evening if anyone is interested. It was programmed on a 68030 50Mhz A1200, and runs at the intended speed on that setup).

     

    More recently, I decided to give it a proper go. I worked out a pretty cool 6502 based computer with 8 sprites, fairly simple graphics and text modes. I knocked together an emulator in C for the Amiga, and another one for Windows/SDL (so I could write the ROM for it both at home and at work). Once the emulator got written enough to display text on the screen, I quickly bodged a simple keyboard hack into it (which I intended to do more "realistically" later) so that I could start to write the ROM.

     

    I started writing a BASIC interpreter for it. I wrote an expression parser, then implemented some simple instructions (peek, poke etc.), variables, list management. As it stands, the BASIC interpreter understands "PRINT", "INK", "PAPER", "BORDER", "CLS", "POKE", "CALL", "NEW", "LET", "LOCATE", "LIST", "RUN", "GOTO", "IF..THEN..ELSE", and "GET". The expression parser understands "=", "<", ">", "(", ")", "+", "-", "<<", ">>", "EOR", "OR", and "AND". It tokenises "*" and "/" but they are not interpreted. It IS quite buggy, but it does work. The problem with it is that it just sort of "evolved" with no design or planning at all. If I sat down and designed it properly, it would probably be a lot more stable :-)

     

    Anyway, as this project was mostly just to see if I could write my own BASIC interpreter, development on it has kind of fallen by the wayside, but I am still quite proud of what I have achieved so far, so I would like to share it with other people.

     

    The emulator is pretty basic. Just the text mode and keyboard emulation. I intended to add 320x200 monochrome, and 160x200 colour graphics, sprites, sound etc. in the future.

     

    All of this is in the attached Zip file, along with the Windows/SDL emulator (if anyone wants the Amiga emulator, which really requires a 68060 requires a graphics card, just ask). Feel free to play with the source.

     

    Oh yes, I was going to call the computer the "Condor LX" :D 8)

    emu.zip

  20. Posted

    Hi,

     

    I know Atari is more of a 6502/68000 thing (and 68000 is my preferred dialect of assembler), but this looked like a bit of fun. I have entered it as well as the guy listed on that site, so thats two entries so far.

     

    Cheers,

    Pete

     

    Edit: HMM... I meant to put this in the programming forum. Could somebody move it please?

  22. Posted

    how do you have a voodoo 3 on an amiga? I have an a4000/040 25mhz (bought when it first came out,) can it do voodoo 5 too??? what in the world on an amiga would use a voodoo graphics card?

     

    My Amiga 4000 is in a tower case, and the original 4-slot Zorro III backplane has been replaced with another backplane that has 7 Zorro III slots, and 5 PCI slots. The PCI slots are activated by a special bridgeboard, called a "Mediator". On the Mediator, I have 3 PCI cards (100Mbit NIC, WinTV Primio FM TV card, Voodoo 3 3000), and some Zorro III cards (Algor USB controller, ATA hard disk controller, Repulse 96Khz 24bit audio card).

     

    There are drivers for the Voodoo 5, but they are not as mature as the Voodoo 3 drivers.

     

    Amigas have had 24 & 32bit graphics cards based on standard chipsets for many years, and so lots of software works with the voodoo. This is what my workbench looks like.

     

    Anyway, this is all off topic, so i'll shut up now ;-)

  23. Posted

    If you've never done any ASM programming before, I do not recommend the 68k as a starting processor, instead, go for 8088.

     

    UGH! Speaking as someone who can program in 680x0, Z80, Z180/HD64180, 8088/x86, 6502, 6809, 65816, Signetics 2650, PIC, ARM, and PowerPC assembler, I can safely say that 8088 is not a good choice simply because it is so utterly horrible.

     

    68000 really is one of the nicest form of Assembler there is. Admittedly, my main computer is 68060 based (an Amiga), but there are plenty of 68000 development environments, including emulators with step-over etc. available for windows.

     

    There are also many tutorials on the internet.

  24. Posted

    Does anyone make NEW eprom writers?

     

    Where I work, we use Needhams programmers, which pretty much program everything under the sun, but they're very expensive.

     

    I'm an Amiga user, so I don't know about for the PC or Mac, but certainly on Aminet there are plans for many build-it-yourself programmers, which tend to be for a specific device. I'm sure that somewhere out there on the web there will be similar designs with software for whatever platform you choose.

  25. Posted

    Hey Dauber! Nice to see a fellow Amiga 4000 user ;-) Mine is slightly more upgraded than yours, though (Mediator 4000, Voodoo 3, TV card, Repulse, Algor etc. etc.), but they're cool machines :-D

     

    Anyway, getting back to PAL vs. NTSC, one thing you have to be careful of is if you use a PAL game in an NTSC Atari 2600, thats different to using a PAL Atari 2600. AFAIK, an NTSC Atari 2600 with a PAL game in it outputs a 50Hz NTSC signal, and a PAL Atari 2600 with an NTSC game outputs a 60Hz PAL signal.

     

    The same is true with Amigas. If you take a PAL Amiga, and set it to NTSC mode, it outputs 60Hz PAL, and likewise an NTSC Amiga can output 50Hz NTSC.

     

    The upshot of which is, some TV's will only show their native format, others will show NTSC at both 50hz and 60hz but not "true" PAL, and others will show everything. The TV card in my A4000 takes several varieties of PAL and NTSC but won't do 60Hz PAL, or 50Hz NTSC. My actually TV will do PAL in 50 or 60Hz but not true NTSC.

     

    I guess you just need to be careful.

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