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<1…78910111213…34>
  • Spectrum Review Book is all systems go ![url]http://www.spectrumgamesbible.co.uk/[/url] We've created a small website for the series of books we are looking to create for the Speccy featur…

    ... valuable time under the table to get a good look up some skirts.
    mile mile March 2008 Sinclair Miscellaneous
  • Spectrum Review Book is all systems go ![url]http://www.spectrumgamesbible.co.uk/[/url] We've created a small website for the series of books we are looking to create for the Speccy featur…

    [QUOTE=mile;251566]ah she is wearing an amusing t-shirt. :)

    remember dropping a pen can give you valuable time under the table to get a good look up some skirts.[/QUOTE]

    you dirty wee bast! :lol:
    dm_boozefreek dm_boozefreek March 2008 Sinclair Miscellaneous
  • Dangerous Z80 Assembly CommandHave been reading Toni Bakers' "Mastering MC On Ya Speccy" book and came across the list of Z80 commands in the dictionary section. Page 102 "[b]IM…

    ... /c routines, the 257 byte interrupt vector table and music data reside ... routines I have for setting up the IM 2 handler, and ...
    Digital Prawn Digital Prawn March 2008 Sinclair Miscellaneous
  • Disappearing/appearing effectI remember doing a small routine in BASIC which could be used to cover the attributes section randomly, until all 704 characters were filled with the…

    ... a saving! Place your 'bit table' on a page boundry for ... register to access the bit table as you say. I thought ... a constant, aligned at a 256-byte boundary and C L or ... suggestion can be optimised. The 256-byte boundary can be a bit ...
    BloodBaz BloodBaz April 2008 Sinclair Basic
  • Channels and streamsSo I've put some thought into channels and streams, and read the dead (and presumably rotting corpse) of the CSS FAQ which contains some information …

    ... within 256 bytes of the associated OPEN and CLOSE stream look-up tables ... channel and buffer on demand - up to thirteen such channels if ... no default printer buffer were 256 bytes further down in memory ... well thought out and I look forward to seeing the fruits ...
    Geoff Geoff July 2008 Development
  • VIC 20 emulation on the SpectrumI'm sure most people are aware of the my attempt at bringing the full Commodore experience to Sinclair users with the "Twenty Commodes" program. It e…

    ... think the console only had 256 bytes of internal RAM or ... , both sharing the same byte - to save ONE byte!

    But ... instruction or something, thus using up the byte somewhere else. I did ... just realised, the extra byte used up would be in ROM, which ...
    Digital Prawn Digital Prawn August 2008 Sinclair Miscellaneous
  • VIC 20 emulation on the SpectrumI'm sure most people are aware of the my attempt at bringing the full Commodore experience to Sinclair users with the "Twenty Commodes" program. It e…

    ... think the console only had 256 bytes of internal RAM or ... instruction or something, thus using up the byte somewhere else. I did ... just realised, the extra byte used up would be in ROM, which ... . These can be extended to 256 bytes and 32K respectively by ...
    Matt_B Matt_B August 2008 Sinclair Miscellaneous
  • ANN: ColorPRINTColorPRINT gives you 256 fully programmable Timex mode 2 characters (maximum 16 colours per character if you have bright black) to use in your 48 BAS…

    ... a single attribute byte as an identifier to look up the colour udg ... value that is used to look up the 8 colours just as ... is used to look up the 8 bytes making up the graphic.
    byte to locate the eight attribute ...
    Alcoholics Anonymous Alcoholics Anonymous September 2008 Sinclair Basic
  • Bouncing BallsPfrrt, I am back from lunch, playing the first raw version of BOUNCING BALLS It is very addictive! As stated here [URL]http://www.worldofspectru…

    ... squaring can be done with table look-up. There should be no need ...
    Matt_B Matt_B September 2008 Games
  • Bouncing BallsPfrrt, I am back from lunch, playing the first raw version of BOUNCING BALLS It is very addictive! As stated here [URL]http://www.worldofspectru…

    ... squaring can be done with table look-up. There should be no need ...
    Dr BEEP Dr BEEP September 2008 Games
  • I just learnt that Spectrum has 1kB of unused ROMWell, man learns through all his life. I have just discovered that Spectrum has over 1 kilobyte of unused ROM memory, from address 14446 to 15615. Al…

    ... trap (a 256 byte area) for the Spectranet indirect call table. Then I ... (with a very small 8 byte entry point area right at ...
    Winston Winston October 2008 Development
  • Spectranet now supports UTF-8!Or at least, a subset of it - all of the 0xC3 characters, and a few 0xC2 characters (?, ?, ? and ?) in its putchar42 routine (the 6x8 character cell …

    ... can do it slowly and look up words you don't yet ... (post both the English string table and the Spanish one)
    Winston Winston October 2008 Hardware
  • So you want to make a cardgame......but you haven't got a good deck to display. Well here is a fully relocatable routine that will do the job for you. Place the code anywhere in me…

    ... />
    LD H,'PRT_RND ;256-byte table
    CURND LD A,0< ...
    Shadow Maker Shadow Maker January 2009 Development
  • Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …

    ... got nowhere fast...
    I look forward to using this as ... above version and then every byte right up to $FFFF is tested ...
    Digital Prawn Digital Prawn January 2009 Games
  • how to reflect a byte's bit-pattern in assembly?I'm trying to use 16 pixel-wide graphics which are symmetrical around the vertical, i.e. if the left byte is 01001110 the right byte will be 01110010…

    Use a lookup table aligned on a 256 byte boundary. Then you have a fixed high byte address and the byte you're reflecting becomes the offset into the table.

    Of course you still need to build this table with ugly rotate opcodes first!
    Bob Stains Bob Stains January 2009 Development
  • Playing 128k music with z88dk ?Hi, I'm amazed how easy seems to make things with z88dk to build spectrum asm programs. After my first approach I miss some way to play 128k music, s…

    ... project. You would then set up an interrupt routine that calls ... 's one way of setting up an IM2 routine from a ... , 0xd4, 257); // initialize 257-byte im2 vector table with all 0xd4 bytes ...
    Alcoholics Anonymous Alcoholics Anonymous February 2009 Development
  • New game: Nanako Descends to HellJust a bit over two weeks after their first game, The Mojon Twins strikes again with a new game for Spectrum 128k and Amstrad CPC: [url]http://www.m…

    ... 0xf1, 257); // initialize 257-byte im2 vector table with all 0xf1 bytes ... 0xf1, 257); // initialize 257-byte im2 vector table with all 0xf1 bytes ... may be preferable to use up a couple hundred bytes ... each bank rather than use up yet more memory in ...
    Alcoholics Anonymous Alcoholics Anonymous April 2009 Games
  • Successor to the SpeccyBased on the rambling on the other thread it would be interesting to see what people felt was the 'spiritual' successor to the speccy. Amiga here....

    ... the screen was fixed to 256 byte boundaries and the rest is ... time. The ST version might look poor next to the Amiga ... />
    Of course, when you look at something like Enchanted Land ...
    Matt_B Matt_B May 2009 Chit chat
  • Fastest Block Drawing Code?Following on from my scrolling thread [URL="http://www.worldofspectrum.org/forums/showthread.php?p=351304#post351304"](http://www.worldofspectrum.org…

    ... . the end of one 32 byte (or bigger/smaller) line goes ... will be faster as no 256 byte boundries to worry about.
    table. It's far simpler to ... start of the sceen address table and use POP to read ...
    robpearmain robpearmain May 2009 Development
  • So what about ethernet and ZX BASIC?Well, as of about 5 minutes ago, ZX BASIC for the first time properly wrote some packets to the network! OK, so it isn't perhaps 100% what Andrew Ow…

    ... used the ready made 256 byte ZX Printer buffer for ...
    Well, there could be up to 4 buffers (each socket ... , and there may be up to 4). The Spectranet ... of the screen when bringing up a user interface, etc ... the streams module, but 256 bytes means that the ...
    Winston Winston July 2009 Hardware
  • Mark your collectionSo, I was up in the loft yesterday going through my stash of ZX Spectrum stuff (as well as other retro gaming goodness) and I thought that it was abo…

    ... and a publisher of Bug Byte, i.e. the original release ... collectors site so if you look up Manic Miner on there you ...
    ADJB ADJB September 2009 Infoseek database
  • I just picked up a free Atari 520stJust got a free 520ST, (no cables or leads) and a small box load of games. :? dunno what to do with it, but it was being thrown out, so I grabbed it…

    ... the other racing cars made up of layered sprites that let ... . The early demos with cut-up sampled music were good at ... had to be on a 256 byte page boundary). There was a ... the screen pointer down to byte-resolution. The STE had the ...
    joefish joefish September 2009 Chit chat
  • I just picked up a free Atari 520stJust got a free 520ST, (no cables or leads) and a small box load of games. :? dunno what to do with it, but it was being thrown out, so I grabbed it…

    ... had to be on a 256 byte page boundary). There was a ... the screen pointer down to byte-resolution. The STE had the ... happen to remember how the byte resolution trick (I assume actually ... mention if I can get up into the loft to retrieve ...
    Marko Marko September 2009 Chit chat
  • Question on copying screen bufferHi, Al my prevoius games were copying graphics directly to screen memory starting at 16384. Now I'm experimenting with screen buffer where I could d…

    ... buffer. I keep a 96 byte buffer (1 bit/character cell ... (257 bytes of interrupt vector table to force screen refresh to ... to screen I use a 256 byte buffer with screen addresses to ... more than 128 cells (256 bytes = 128 * 2 byte data) I flag ...
    Paradigm Shifter Paradigm Shifter January 2010 Development
  • Double Dragon 128k - The graphicsAs you are all probably aware, I tried gathering a team of people together a few years back to make a totally re-programmed version of Double Dragon …

    ... like what you'll end up with is Renegade on steroids ... /> 6 ) Will you be using look up tables for sprite reversals, and ... data other than the single byte identifying the maptile?..If so ...
    kgmcneil kgmcneil January 2010 Development
  • Gaming Epiphany?!?!?Not sure if this has been asked before, but, here goes. I was wondering which games people had played on what ever system and thought 'WOW now that?…

    ... ' that doom didn't have (look up and down, sliding on ice ... ), there's no real boot up time, console games usually are ... . I have 2 pcs hooked up to my Bigscreen 42" LCD ... and mouse on the coffee table, additionally to playing pretty much ...
    beanz beanz February 2010 Chit chat
  • Please test my Manic Miner remake!Thanks to everyone who downloaded my sneak preview of Manic Miner Turbo. Thanks especially to na_th_an who is the only person so far to give feedback…

    ... .5K shift right & left table for that (or a 1 ... .75K rotate table and mask it to get ... some memory by using a 256 byte mirror table (or generating one as ...
    Paradigm Shifter Paradigm Shifter February 2010 Games
  • Please test my Manic Miner remake!Thanks to everyone who downloaded my sneak preview of Manic Miner Turbo. Thanks especially to na_th_an who is the only person so far to give feedback…

    ... of setting up SP. If you align copybuf on a 256-byte boundary ... , you could speed that up as well.
    The President The President February 2010 Games
  • Sprite RotatingI was looking (actually at Everyone's a Wally), and noticed that all the graphics for the main characters are left facing, and two characters wide. …

    ... 87ff contains 8 *256 byte tables of rotated byte values starting at ... tables at #8800 set up with pre-shifted mask ... and similar for the second byte. (Apologies if I've got ... pixels you want the byte pre-shifted by. Since ... you can set them up pre-entry thanks to ...
    Turkwel Turkwel June 2010 Development
  • Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…

    ... a back buffer, of 10 byte tiles. These seem to be ... . (I did see that one byte seems to hold how many ... can be kept in one 256 byte page. I also have a ... tile-writer code (which is up on the forums at boriel ...
    Gedlion Gedlion June 2010 Development
<1…78910111213…34>

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