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<1…13141516171819…34>
  • Messenger interfaceHave anyone photos, schematic, rom images, documentation, or software for Messenger interface ? [url]http://www.worldofspectrum.org/infoseekid.cgi?i…

    ... the clocks are kept in sync.[/QUOTE]

    That was ... DISCiPLE with exactly the same code.

    [QUOTE]SimCoupe doesn ...
    zub zub January 2013 Hardware
  • CSW file formatHi, i can't google any reasonable description of CSW file format. Can anyone point me to right place ?

    ... .html"]PZX tools[/URL] source code for an example of converting ... min, cca 1 sekunda)
    sync 700 2

    bit0 ...
    catmeows catmeows January 2013 Emulators
  • CSW file formatHi, i can't google any reasonable description of CSW file format. Can anyone point me to right place ?

    ... course, it was my bugged code. I accidentally recognised some data ... first bit pulse after the sync pulse, note the line number ...
    catmeows catmeows January 2013 Emulators
  • Biturbo 2 turbo loader now available for general useAfter tinkering with its code, extracted from a TZX of one of the infamous Italian S.I.P.E. "tape magazines" which published hacked games for the Spe…

    ... have a M/C code block starting at 40000 ... TZX, the Biturbo 2 loader code, and a small utility, ... 39999
    20 LOAD ""CODE
    30 POKE 65340,64 ... 20 loads the Biturbo 2 code, line 30 customizes it ... - 3190;
    [*]Sync 1 pulse - 714;
    [*]Sync 2 pulse - 714 ...
    Alessandro Grussu Alessandro Grussu February 2013 Development
  • Just a curiosity of mixing synth with samplesThis is really a proof of concept, I made for the idea of playing simultaneously two ZX Spectrum computers, where one is playing chiptune music and t…

    ... 't drift out of sync. The code on the Spectrums has to ...
    gasman gasman March 2013 Sinclair Miscellaneous
  • BIFROST* Advanced Programming - part 4In previous posts I demonstrated how to move multicolor tiles up and down smoothly by a single pixel, and sideways by an entire char (8 pixels). Thi…

    ... this:
    [CODE]'Wait for next frame
    #define sync() \
    asm ... \
    halt \
    end asm
    [/CODE]
    [CODE]
    BIFROSTsetTile(px, py, BIFROST_STATIC ...
    Einar Saukas Einar Saukas March 2013 Development
  • BIFROST* Advanced Programming - part 4In previous posts I demonstrated how to move multicolor tiles up and down smoothly by a single pixel, and sideways by an entire char (8 pixels). Thi…

    ... Knights & Demons DX"):
    [CODE]' ------------------------------------------------------------------------------
    ' Change a multicolor ... 'Set new tile
    sync() 'Necessary to avoid visual glitch ...
    Einar Saukas Einar Saukas March 2013 Development
  • BIFROST* Advanced Programming - part 4In previous posts I demonstrated how to move multicolor tiles up and down smoothly by a single pixel, and sideways by an entire char (8 pixels). Thi…

    ... it directly:
    [CODE]
    sync() 'Necessary to avoid ... 'Draw tile manually
    [/CODE]

    In ... br />
    [CODE]
    sync() 'Necessary to avoid ...
    Einar Saukas Einar Saukas March 2013 Development
  • Just a curiosity of mixing synth with samplesThis is really a proof of concept, I made for the idea of playing simultaneously two ZX Spectrum computers, where one is playing chiptune music and t…

    ... 't drift out of sync. The code on the Spectrums has to ...
    Yerzmyey Yerzmyey March 2013 Sinclair Miscellaneous
  • Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…

    ... who wants to write Z80 code with per-pixel colour, hardware ... , just delay X pixels the sync pulse and the screen area ...
    antoniovillena antoniovillena July 2013 Development
  • Kiss Kill - a Spectrum music video from Candy Says and GasmanYou may remember [url=http://www.worldofspectrum.org/forums/showthread.php?t=43068]the preview[/url] of this from back in March - here's the final re…

    ... sadly it goes out of sync after a while. Looks like ... , so I had to put code in the other pages instead ...
    gasman gasman July 2013 Announcements
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... border. After the sync pulses are found, the code at 8621 and ... loader starts looking for the sync pulses. H therefore governs the ... second and subsequent blocks of code. One could have a loading ... length pilot, then the main code glued immediately after it with ...
    stephenw32768 stephenw32768 July 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... main loop:

    [CODE] org 65368 ; somewhere uncontended
    ei
    ret[/CODE]

    It's actually ... I need to detect a sync pulse. I'm thinking ... pulse of 1024T as my sync; in other words, half ...
    stephenw32768 stephenw32768 August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... then looks for a sync consisting of a pulse ... long:

    [CODE] org 65368 ; somewhere uncontended
    .detect_sync:
    ;; a sync consists of a lone zero ... thus
    ;; a valid sync. Success!

    ...
    stephenw32768 stephenw32768 August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... ;; L: during search/sync, holds one of the timing ... ;; used for detecting sync pulses to save a ... br /> .detect_sync:
    ;; a sync consists of a lone zero ... br /> push bc ;exit code assumes data length on stack ...
    stephenw32768 stephenw32768 August 2013 Development
  • BIFROST* example: "Knights & Demons DX" source codeA package containing the source files of our multicolor game "Knights & Demons DX" is now available for download [URL="http://www.mediafire.com/?hbch…

    ... valid key
    RETURN CODE k$-CODE "0" ' return ... set new tile
    sync() ' sync to prevent visual glitch

    [CODE]sub FASTCALL sync()
    asm
    ...
    Einar Saukas Einar Saukas August 2013 Development
  • BIFROST* example: "Knights & Demons DX" source codeA package containing the source files of our multicolor game "Knights & Demons DX" is now available for download [URL="http://www.mediafire.com/?hbch…

    ... , py, BIFROSTSTATIC + n)
    sync()
    sync()
    NEXT n


    [CODE]function invertTilesGroup(px AS UBYTE ... /> RETURN delta
    end function[/CODE]

    Using this previous ...
    Einar Saukas Einar Saukas August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... .
    [/LIST]
    Code:[CODE] org (somewhere uncontended)
    ... /> ;; HL:during search/sync, the address of the ... ;; used for detecting sync pulses to save a few ... br /> .detect_sync:
    ;; a sync consists of a lone zero ...
    stephenw32768 stephenw32768 August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... a single load.

    [CODE].attrs:equ 0xfd00 ; last 768 ... ,0x1b7b ; ROM routine indicating BREAK (code L)
    ;; otherwise, there ... de ; restore registers

    ;; sync on an edge representing a ...
    stephenw32768 stephenw32768 August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... without success. It failed to sync; and when I slackened the ... sync check to enable it ... . And since my first sync pulse is supposed to be ... really killing 47loader is this code:
    [CODE].read_bit:
    call .read_edge ...
    stephenw32768 stephenw32768 August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... consider both edges of the sync and pulse.

    I ... be 90-100% for the sync pulse to be recognised, I ... 'd consider normal) after the sync pulse had been read without ... the code this evening. With a really loose check for the sync ...
    stephenw32768 stephenw32768 August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... in your turbo block, your Sync 1 pulse is half your ... Sync 2 (512/1024), while ROM ... . I wonder if changing your code to use these values this ...
    balford balford August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... in your turbo block, your Sync 1 pulse is half your ... Sync 2 (512/1024), while ROM ... . I wonder if changing your code to use these values this ... know whether it's the sync that's the problem: when ... far as looking for the sync.

    I'm ...
    stephenw32768 stephenw32768 August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... SkyDrive; it's the same code as yesterday's except that ... identify as either pilot or sync. If it goes black/green ... stays there until the sync, we know the sync detection is the ...
    stephenw32768 stephenw32768 August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... of the pilot and sync (volume reduction at this ... , as usual, once the sync has been recognised and the ... sync pulse detection in the current version of the code has ... accepted as the first sync pulse, and the length ... but still failing to sync, I'd have been ...
    stephenw32768 stephenw32768 August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... 60% tape volume, the pilot/sync detection went fine, but the ... 60% volume so the pilot/sync is recognised, upping the volume ... stated without seeing your latest code (and that might not be ...
    balford balford August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... each time it hits a sync pulse. I'm thinking that ... 60% volume so the pilot/sync is recognised, upping the volume ... most recent adjustment to the code was reducing the lower bound ...
    stephenw32768 stephenw32768 August 2013 Development
  • New audio interfaces.I heard that gasman and someone else had to release two new input interfaces for spectrum+AY : a theremin interface and something else I can't rememb…

    ... can't find any machine code listings in the manual though ... /> edit:
    Are those two sync in- and outputs needed?
    bverstee bverstee August 2013 Announcements
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... as it currently stands:
    [CODE] ;; 47loader by Stephen Williams 2013 ... b

    ;; read second sync pulse
    set_data_border
    call ... checksum for later
    ret[/CODE]

    [URL="http://sdrv ...
    stephenw32768 stephenw32768 August 2013 Development
<1…13141516171819…34>

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