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<1…14151617181920…34>
  • About INDUG and Format MagazineI used be to a subscriber of Format Magazine the home of Z80 computer. I do have almost every single issue and I was wondering if anyone has asked th…

    ...
    (I had the complete set).
    [/quote]

    -yes ... ?, and dpi ?

    A screen per page of the mag ... ? or a mag page per screen? (its a A5 size mag ... fault has been fixed the above will not take to long ...
    Steve(spt) Steve(spt) August 2004 Sinclair Miscellaneous
  • Interrupts details questionSuppose I am writing a game and I want to use interrupts to measure time, draw the screen without flicker, maybe to poll keyboard etc. What kinds of …

    ... sequence: left border-pixel screen - right border for every pixel line (one ... this time (drawing pixel part of screen, not left/right border ... on speccy 48: stack above 32768 (call,push,pop, ... parts of code above 32768, sound routines above 32768 (due exactly ...
    Fikee Fikee August 2004 Development
  • Interrupts details questionSuppose I am writing a game and I want to use interrupts to measure time, draw the screen without flicker, maybe to poll keyboard etc. What kinds of …

    ... :
    ; set white paper and black ink over the whole screen
    xor 255 ; mark this screen location
    ld (hl), a ... on to the next 8-pixel group
    call label2addr( ... " the address space of a screen third.
    unscrambleHL:
    ...
    Erlstoned Erlstoned August 2004 Development
  • IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…

    ...
    ; based as opposed to pixel based system

    ; ... 0
    call 8859 ; set permanent border colour

    ; HL Contains Screen Address
    ; DE Contains Char ...
    robpearmain robpearmain August 2004 Development
  • IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…

    ...
    ; based as opposed to pixel based system

    ; ... 0
    call 8859 ; set permanent border colour

    ; HL Contains Screen Address
    ; DE Contains Char ...
    robpearmain robpearmain August 2004 Development
  • Interrupts details questionSuppose I am writing a game and I want to use interrupts to measure time, draw the screen without flicker, maybe to poll keyboard etc. What kinds of …

    ... while the refresh of the screen happens ?

    [/quote]
    pixel byte/attr pair, it releases ... always put timing critical stuff above 32767.


    * Actually ...
    Alcoholics Anonymous Alcoholics Anonymous August 2004 Development
  • An emulator(another on of my projects) Does anyone know how to write an emulator? The emulated computer is very simple (a MK14, infact -also by Sir Clive) and a…

    ... ago for things like full screen letters, or weird text printers ... having a 30 pixel high scroller bobbing across the screen over the ... mean like working out screen address for a pixel and setting it ... I want a smaller character set than 6,8... maybe a ...
    CKay CKay August 2004 Development
  • On 48k, can I copy 4k before next screen updateFollowing on from my thread at [url="http://www.worldofspectrum.org/forums/viewtopic.php?topic=6423&forum=11"]http://www.worldofspectrum.org/forums/v…

    ... 4k from Backbuffer to Screen in under 1/50th ... copy back to front screen with no tearing/flicker ... the last interrupt -- set a breakpoint at the ... were actually updating the screen in a chaotic fashion, ... screen. If you wait out this time before starting your pixel ...
    Alcoholics Anonymous Alcoholics Anonymous September 2004 Development
  • Why relativly bad colour on Spec compared to other 8bit?Why relatively bad colour on Spec compared to other 8-bit machines like the Master system or even c64? I understand the 8x8 block that you could hav…

    ... spectrum has exactly the screen layout/ resolution and ... /> I mean, as said above, with only a 3.54 ... pixel then it works out at under 7K for a full screen ... pixel, that`s nearly 25K for the same screen ... Sinclair zx80 or zx81 switching screen off...

    CKay CKay September 2004 Games
  • Zecut0r and ZAFA while ago (about 2 yrs)i took VbSpec and tried to port it to Delphi 6. Althought it was pretty weak, it. Meanwhile DelphiSpec 0.1 appeared and i wa…

    ... to the ZX Spectrum`s Screen"

    ;"shows the ... and clear screen"

    0 9 locate
    ;"set print location ... print some colour blocks to screen"


    curfornextvalue = ... br />


    the above cr proc should be saved ...
    Steve(spt) Steve(spt) October 2004 Emulators
  • Can Anyone explain sprites in Jet Pac/Atic Atac etcJet Pac was 16k, and yet the sprites were impressively fast. I notice they had a slight flicker at times, but were notmally pretty flicker free. W…

    ... screen address
    ; on exit hl = address of next (pixel) ... pixel wide sprite (variable height)
    ; directly onto the spectrum screen ... calculated screen address in de.

    ; ---- Set the ... inc hl ; bc = last screen address.

    ld ...
    robpearmain robpearmain October 2004 Development
  • Cobra - scrollingHi everyone, I have been studying some of the code in Ocean' Cobra game using a debugger, in the hope of improving my own scrolling routines. In cas…

    ... LD R,A. Hence the above will loop forever[1] if ... top bit of R is unset or not at all if ... top bit of R is set.

    I can't ...
    Philip Kendall Philip Kendall October 2004 Development
  • How can I scroll a line of text and wrap perfectlyI know this is easy for most of you but for some reason I am messing it up. In Assembly Language I want to do the following: I have 1 line of text …

    ... SP to point to the screen memory (at end of the ... the rightmost part of the screen - put SP to point to ... pixel I'm sure - quicker ways of doing it but the above ...
    cyborg cyborg October 2004 Development
  • There's a bug in my Speccy, Dear Liza, Dear Liza...Hi guys, Just me being annoying again - Can anyone out there in 'Internetland' help me with ideas about what could be causing a bug in my Speccy em…

    ... know what that last posting (above) is about, but never mind ... on the day I posted above; as I've basically been ... use vi on a green screen, dumb terminal when a student ... find seem to want to set my home page to [url ...
    Speculator Speculator January 2005 Development
  • Spectrum programmingI have a Spectrum+ at home. I tried to write some programs in BASIC (IIRC i wrote a breakout clone in which you had to hit those spider-like characte…

    ... in the byte representing a pixel) but the layout is not ... to HL. This produces several screen segments that are 64 lines ... load of hardware information (the above is all from memory).
    cyborg cyborg January 2005 Development
  • Anyone help re-factoring a tile functionI had some excellent feedback for re-factoring my function that displays the colour for my screen tiles. Can anyone offer some help to improve the fu…

    ... in each third of the screen is corrupted. I think ... this because the screen value is rolling over into ... modified by the code. See above
    LD A,E

    SET 5,E
    LD A ...
    Mr Millside Mr Millside February 2005 Development
  • Anyone help re-factoring a tile functionI had some excellent feedback for re-factoring my function that displays the colour for my screen tiles. Can anyone offer some help to improve the fu…

    ... states. The transition between screen thirds has been sped ... JP NZ,NXTROW1
    SET 3,D
    JP ... by the code. See above
    LD A,E ... E,A

    SET 5,E
    LD A ...
    Mr Millside Mr Millside February 2005 Development
  • New release of EmuZWinEmuZWin Version 2.6 Release 1.0 Beta? ? (30-Jan-2005): A lot of changes. Most important are: [+] Formats supported: RZX, SLT. [+] Sound devices sup…

    ... -separated games) can now be set very easy, there are no ... also for Direct-X full screen.
    ??? (+) Keyboard state now provided ... (case of 1 bit per pixel, 4 planes). But other modes ... mode requested for DirectX full-screen but the hardware can not ...
    Vladimir Kladov Vladimir Kladov February 2005 Emulators
  • New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…

    ... sense.

    Let's set our goal: I think we ... perfect TZX file with loading screen and stuff, but maybe that ... .
    * Aesthetics (graphics, sound, loading screen, intro scenes, etc...): 30% of ... .

    As I wrote above, I'm completely open to ...
    na_th_an na_th_an March 2005 Development
  • New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…

    ... The location of the UDG set is stored in the same ... and can be used to set the BORDER color (bits ... can read them in a SCREEN$. [Dr. BEEP]
    * ... points to the right character set when PRINTing, LISTing, etc, ... Bit 1: This bit being set to a one indicates that ...
    na_th_an na_th_an April 2005 Development
  • Game endings..which are your best / worst ones?I'm not sure how valid this is on a spectrum site considering the memory capacity of the machine,but were there any games out there with any good gam…

    ... The face from the loading screen appears with quite a long ... />
    [B]* Jet Set Willy[/B] ... (Couldn't leave ... So the whole game was set
    in Joffa Smith ... ... (People come on the screen to congratulate you! They didn ... In both 7 and 8 above, if you have the ...
    jil jil May 2005 Games
  • Does anyone play a Speccy through a Plasma/LCD Tv?What does it look like? Without the scanlines of a normal cathode TV, it would be all blocky. In fact it would probably look just like an emulator wa…

    ... the screen. Is this the same on a LCD / plasma set. ??
    pixel data that the Speccy sends ...
    gasman gasman May 2005 Sinclair Miscellaneous
  • The BIGGEST Speccy ebay auction everdon't believe me? go looksy [url="http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=8176797909"]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&i…

    ... Mastertronic Entertainment USA - Bump Set Spike
    Mastertronic Entertainment USA ...
    Software Projects - Jet Set Willy
    Software Projects - ... Sacred Armour Of Antiriad
    Screen Heros x2
    Sega ... />
    As mentioned above, I have 2 ZX-81 ...
    usspeccyfan usspeccyfan May 2005 Sales
  • The BIGGEST Speccy ebay auction everdon't believe me? go looksy [url="http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=8176797909"]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&i…

    ... Mastertronic Entertainment USA - Bump Set Spike
    Mastertronic Entertainment USA ...
    Software Projects - Jet Set Willy
    Software Projects - ... Sacred Armour Of Antiriad
    Screen Heros x2
    Sega ... />
    As mentioned above, I have 2 ZX-81 ...
    Lee Fogarty Lee Fogarty May 2005 Sales
  • T.I.M. - A New Interlace - Demo for DOWNLOADHere's something that's been in the works for quite a while ( mostly in my head ) and recently I've aquired assistance to help it come to fruition. …

    ... from linear backbuffer to screen... aprox 14.59T/B ... ;6

    set 4, l ;8 prepare HL ... ;6

    set 4, l ;8 prepare HL ... ;6

    set 5,l ;8 HL down ... />
    ;same code as above

    3rd left,3rd ...
    Fikee Fikee May 2005 Development
  • Presevation malarkey - what i've found in my collectionhey, just gone through all my old speccy games, the original purpose was try get rid of them but i'm finding myself loath to do it anyway, i've run …

    ... Movie. Its a double tape set, i have it but with ... emulator and do a "save screen" is all it needs but ... / reject what I have put above please.

    ADJB
    ADJB ADJB June 2005 MIA/STP/SDP
  • Changing the colour of the screenCan anyone tell me the ROM command to change the paper colour of the main screen ?

    ...

    ....
    ---------------

    set up permanent colours for paper ... use above code, open stream two to output to upper screen,call ...
    Steve(spt) Steve(spt) June 2005 Development
  • Maps in progressIf you are working on some map, this thread is just for you! Post here the name of that game for which you are creating a map. Only then we can preve…

    ... top of a screen yet enter the next screen from a door ... Gem[/B]
    [B]Jet Set Gertie[/B]
    [B]Play ... 'll be finishing off the above listed maps before I bother ...
    jil jil June 2005 Support files
  • Help! +3 won't work anymore!I've just set up my old +3 and it just won't work - it used to a few months ago but now it won't :( I'm in need of some expert help so here's the pr…

    ... wrote:
    I've just set up my old +3 and ... signal. There is some black screen but it is fuzzy. I ... a definte change in the screen so I'm sure I ... was on but just black screen (sort of, just the same ... was okay

    All above I took from the damaged ...
    Timppa Timppa August 2005 Sinclair Miscellaneous
<1…14151617181920…34>

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