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<1…15161718192021…34>
  • THE SPECTRUM QUIZ IS HEREOkay folks, here are 30 questions. The person who EMAILS them to me with the most correct is the winner. No cheating, use your memory and not the W…

    ... skip in Manic Miner - Bug Byte version I
    (worth 2 ... /> 8

    25 In Back 2 Skool, how many lines ...
    GeeKay GeeKay April 2002 Games
  • Someone knows the name of this game ?I remember an old game of kung-fu where in the first 3 or 4 screen you played against another man and after you played with two kung-fu men. I rememb…

    ... called either. I'll come back once I remember more details ... was Kung-fu by Bug-Byte; thanx a lot for your ...
    FGuerreri FGuerreri June 2002 Games
  • Machine Code ChallengeHere's a challenge for all you Z80 programmers. Points to be awarded for elegance and brevity. (I haven't got the solution either) HL addresses the …

    ... br /> ......jr nz,found0 ;byte with first 0 found; jump ... /> found0: dec a ;back to the right value
    byte so that we don't ... need to retain the forcing byte
    ......ex af,af ... ) ;again we prepare the forcing byte
    ......rra
    ...
    Mikie Mikie July 2002 Sinclair Miscellaneous
  • Machine Code ChallengeHere's a challenge for all you Z80 programmers. Points to be awarded for elegance and brevity. (I haven't got the solution either) HL addresses the …

    ... back 1.

    LD A,(HL) ; Load A with first byte ... ; Store location of first byte with a reset
    EXX ; Retrieve first byte with reset bit location
    byte in its location.
    ... (HL),A ; Store new byte in its location.
    ...
    Fraser Fraser July 2002 Sinclair Miscellaneous
  • Machine Code ChallengeHere's a challenge for all you Z80 programmers. Points to be awarded for elegance and brevity. (I haven't got the solution either) HL addresses the …

    ... ff
    .....jr nz,found0 ;byte with first 0 found
    found0: dec a ;back to the right value
    byte so that we don't ... .....inc hl ;move onto next byte
    .....pop af ;restore the ... bit 0 of the previous byte (in cy)
    .....ld ...
    Mikie Mikie July 2002 Sinclair Miscellaneous
  • Machine Code ChallengeHere's a challenge for all you Z80 programmers. Points to be awarded for elegance and brevity. (I haven't got the solution either) HL addresses the …

    ... 6 DEC HL ; Move HL back 1.

    8018 ... /> ; bit 0 of previous byte in bit 7. Carry
    byte with reset bit location.< ...
    Fraser Fraser July 2002 Sinclair Miscellaneous
  • TZX to TAPIs there an application for the mac which will convert TZX files to TAP? I've searched around but can't find any.

    ... bits to a byte, so 16 flips per byte. The distance between ... the bytes directly. When playing back, we examine each bit in ...
    Dunny Dunny July 2002 MIA/STP/SDP
  • ZX-2-PC Interface : Is it dead ???Certainly not, but I had some problems getting the EPROM-reader constant. In my former threat I stated that it worked, well, it read ROM-values but n…

    ... to savingfaults I saved every byte 3 times).

    Then ... working flawlessly, so I turned back to 4 bits load and ... A,255 ; Signal of DATA-byte
    LD DE,16384 ; LENGTH ...
    Dr BEEP Dr BEEP December 2002 Sinclair Miscellaneous
  • TAP files for the TS 2068Hi, just recently bought a TS 2068 and found "Taper" on the web. Downloaded it and began to use it only to discover that it would not open TS 2068 fi…

    ... that it was featured in "BYTE" magazine in the USA at ... for variables. I'd occasionally back up the variables so I ... Spectrum ROMs and either piggy-back them on the Timex's ...
    Sparky Sparky December 2002 Sinclair Miscellaneous
  • Who want to remake Double Dragon?Seeing as the Speccy version was crap (see my review: [url="http://www.gamestyle.net/retro.php?article=31"]http://www.gamestyle.net/retro.php?article…

    And did David go on to program better stuff?

    Back to topic: Swainy, great screens! BTW, how bout mailing joffa smiff and see if he wants to code the game? :)
    Arjun Arjun July 2003 Games
  • Who want to remake Double Dragon?Seeing as the Speccy version was crap (see my review: [url="http://www.gamestyle.net/retro.php?article=31"]http://www.gamestyle.net/retro.php?article…

    ... ]Back to topic: Swainy, great screens! BTW, how bout mailing joffa smiff ...
    Swainy Swainy July 2003 Games
  • Advice about drawing sprites on spectrum I've coded sprite drawing before and know all the theory about masks from a long time ago (microhobby rules! ;), but since I did it on Amiga with ha…

    ... /> Anyway, using a table, each byte can be rotated in 11 ... /> [quote]
    BTW, after reading Joffa Smith pages, I implemented a ... ;speed :)
    [/quote]

    Joffa Smith gets my vote as ...
    Alcoholics Anonymous Alcoholics Anonymous July 2003 Games
  • Manic Miner - Different Tape InlaysSo why did bug byte have two different inlays for MM? [ This Message was edited by: mlasham on 2003-07-28 12:38 ]

    ... /> I'm really enjoying getting back into all this stuff.
    back good memories too. At the ... great - as did the Bug-Byte and Ultimate ones - but I ...
    mlasham mlasham July 2003 Games
  • Who want to remake Double Dragon?Seeing as the Speccy version was crap (see my review: [url="http://www.gamestyle.net/retro.php?article=31"]http://www.gamestyle.net/retro.php?article…

    ... . they get a mask byte and gfx byte then switch to screen ... screen then switch back and going to the next byte... switching is ...
    Fikee Fikee August 2003 Games
  • Anyone for a hacking challenge ?I have to get the DSK version of Tomahawk to work. It uses the well-known Digital Integration "SECURITY CODE" lock just like in Bobsled, ATF, etc. Th…

    ... ) let's have a trace back to see where it is ... our own.

    Scroll back a tad again and you ... A,D ; Take the high-byte
    E904 AND 03 ; The ...

    So trailing these back will show you how the ...
    BadBeard BadBeard August 2003 Sinclair Miscellaneous
  • Anyone for a hacking challenge ?I have to get the DSK version of Tomahawk to work. It uses the well-known Digital Integration "SECURITY CODE" lock just like in Bobsled, ATF, etc. Th…

    ... .

    Just back from the park with the ... my tea and then back 2 lenslok write up ... (40000),A ; Put it back! ie. Memory location 40000 now ... remember we enter the lo-byte first!). Keep pressing ENTER ... ; Put the number of lives back

    Return ...
    BadBeard BadBeard August 2003 Sinclair Miscellaneous
  • Anyone for a hacking challenge ?I have to get the DSK version of Tomahawk to work. It uses the well-known Digital Integration "SECURITY CODE" lock just like in Bobsled, ATF, etc. Th…

    ... 03 AND 03 ;the high-byte will now
    ;contain 0 ... ),HL ;and put the code back
    EA40 E1 POP HL ...
    BadBeard BadBeard August 2003 Sinclair Miscellaneous
  • 128 Memory PagingI'm having a problem getting my brain around paging. Well, actually the bit I don't understand is how reading I/O ports works! I hope the collective …

    Port 32765 is a write-only port.
    Normally the byte at 23388 holds the last value written to the port. Read that, alter your page bits and then write that back to 23388 and to the port.
    Woody Woody August 2003 Sinclair Basic
  • Sync-buzzer, interrupts and general confusionBeen wittering on about this in the Misc group, but thought it was best discussed here. Basically been trying to recreate the Sid-Sound effect from A…

    ... probably won't hear back until next year. Looks ... this is a single-byte RST instruction that performs ... points at a 256 byte table containing interrupt service ... not provide an identifier byte when it is supposed ... to 0xf100 inclusive. Every byte in this table is ...
    Alcoholics Anonymous Alcoholics Anonymous September 2003 Development
  • Jet Set Willy Problems...I THINK I've completed the "Lord of the Rings version of Jet Set Willy...I've reached the "Grey Haven" (or whatever it's called) but when I jumped ov…

    ... , it just looped
    > back to a yellow room 5 ... screens back. What
    > are you ... /> > game?

    Go back right from "The Field of ... file is a raw 6912-byte binary file), if the emulator ...
    andrewbroad andrewbroad September 2003 Games
  • ZX81 and ZX80 emulator on Spectrum 128KA couple of weeks ago we were talking about a new ZX81 emulator for the 128K. Someone beat me. More details at [url="http://www.fruitcake.plus.com/S…

    ... ;
    JR C,L0388 ; loop back with carry to TRAILER

    RET ; return with full byte.
    Tom-Cat Tom-Cat September 2003 Emulators
  • help in byte mirroring.I need some help. What is the best way to mirror the byte? (for ex. 10010011 -> 11001001) I mean, if there is a simple way to do it (may be with OR, …

    Java method to mirror a byte (from SPECSAISIE 1.3 - class ... />
    public static byte reverseByte (byte in) {
    byte out= 0;
    for ...
    andrewbroad andrewbroad October 2003 Development
  • Z80 coders compoIf you're interested in Z80 coders compo, visit my page [url="http://mbr.nm.ru/compo.html"]http://mbr.nm.ru/compo.html[/url]

    ...

    ORG #6D11 ;First byte may be different

    back to 0
    JR INC2 ... />
    gaining one very evident byte :D

    (Edits: This ...
    Metalbrain Metalbrain November 2003 Development
  • Z80 coders compoIf you're interested in Z80 coders compo, visit my page [url="http://mbr.nm.ru/compo.html"]http://mbr.nm.ru/compo.html[/url]

    ... the mail he sent me back:

    [I]
    > ... the entry must take a byte (0x00 - 0xFF) in any register ...
    Metalbrain Metalbrain November 2003 Development
  • Another Free Ebay Day ;- Link to 300+ ?1.50 all in[url="http://cgi6.ebay.co.uk/ws/eBayISAPI.dll?ViewListedItems&userid=cornishdavey&include=0&since=-1&sort=2&rows=200&rdir=0"]http://cgi6.ebay.co.uk/w…

    ... 2

    Bug Byte
    Glider Rider
    Invaders ... Black Lamp
    Booty
    Byte Bitten
    Chicken Chase
    G-Force
    Euro Byte

    Game Busters

    Microsphere
    Back to School

    Mikro ...
    Cornishdavey:)) Cornishdavey:)) January 2004 Sales
  • 42 column text, Sinclair Print Utilities, etcI'm currently developing the next of the ZXIF text adventures - "43 Minutes" and, as a side issue, I'm really interested in 42 column text for this g…

    ... a whole load of 0 byte data blocks. Taper reports also ... you an answer. a while back i found a heapload of ...
    Sadako Sadako March 2004 Development
  • whats your second favourite retro computerOk i'm going to assume that for most of us here the speccy is our favourite number 1 retro computer,its the best home computer in the world etc etc :…

    ... /2048 = 9.77 cycles per byte?[/quote]

    About 8 ... [/I] unrolled (two commands per byte) and there's no other ... change the index and branch back.

    As i said ... 1.253MHz z80 for the byte copy task, or the spec ...
    TMR TMR March 2004 Games
  • Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…

    ... was mulling over a while back, and I don't think ... tables, I think translating a byte to the appropriate AY output ...
    gasman gasman March 2004 Sinclair Miscellaneous
  • Chuckie EggHi peeps, a long time ago I wrote the original version of chuckie egg on the speccy. I've just heard about this board and was told I should say hello…

    ... must to know that Jonathan "Joffa" Smith also is in this ... /> Er, it was 'Kong Strikes Back' - and the less said about ...
    frobush frobush March 2004 Games
  • EmuZWin supports 256 color gamesI am sorry starting new topic, but you see this info is important a bit: new version 2.4 of the EmuZWin is available to download, and it supports 25…

    ... and repaint the whole game byte by byte !!!
    However I am ... copy the output on screen back into memory ) or is it ...
    Arm73 Arm73 April 2004 Emulators
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Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
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    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
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    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
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    mel the bell on April 20

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