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<1234567…34>
  • Emulator with frame advance?Are there any emulators which preferably both play RZX files and also (and here's the odd but important bit) feature a "frame advance" button so that…

    Are there any emulators which preferably both play RZX files and also (and here's the odd but important bit) feature a "frame advance" button so that I can get exact movement timings and stuff from a game?
    Dr Derek Doctors Dr Derek Doctors July 2005 Emulators
  • T-States?Can anyone point me to any good reading (or summarise) that will explain exactly what a tstate is? At the moment for me, tstates are a useful gauge …

    ... will explain exactly what a tstate is?

    At the ... the time to draw a frame for example. The whole number ...
    R-Tape R-Tape July 2012 Development
  • cause of 1 tstate differencethe sinclair faq, located at: [url]http://www.worldofspectrum.org/faq/reference/48kreference.htm[/url] says: "NB: Investigations in May 2004 have rev…

    ... the reason behind this 1 tstate variation?
    Arda Arda June 2014 Hardware
  • is there a wire frame version of total eclipse, 3d construction kit, etc?is there a wire frame version of total eclipse, 3d construction kit, etc? this would mean the game would run faster. total eclipse, etc is too slow.

    is there a wire frame version of total eclipse, 3d construction kit, etc? this would mean the game would run faster. total eclipse, etc is too slow.
    digital digital September 2015 Development
  • Digital photo frameDIY project idea: Huge and cheap digital photo frame to see only Spectrum screens. How much would it cost?

    DIY project idea:
    Huge and cheap digital photo frame to see only Spectrum screens. How much would it cost?
    hikoki hikoki December 2015 Hardware
  • Zero v0.8Pigs can apparently fly because it's the v0.8 update of Zero that no one asked for but is out for public consumption anyway. Grab it [url="https:/…

    ... /> + Added RZX Playback Start and Frame end breakpoint events.
    + Added ... of z80 snapshots with invalid tstate values (woody).
    - Fixed mono ...
    Arjun Arjun January 2022 Emulators
  • Solution for overwritten stack in 48k SNA filesIt has been known for quite some time now that the 48k SNA file format has one serious fault, which is described in the file formats section on the W…

    ... t think that the missing tstate is so crucial to the ... program to determine in which tstate Spectrum was at the time ... wouldn't generate the first frame corretly, but all others (including ... , if the SNA format contained tstate. :)

    Regards,
    Ziga
    Anonymous Anonymous October 2002 Emulators
  • Does ScanLine[0] have a left border?My emulator couldn't handle Cobra or ShortCircuit so I added some rough port FF values. I now want to make it a bit more accurate. The FAQ gives me a…

    ... , 64th line down) then at tstate 0 the CRT is at ... the screen in the next frame. What your display device chooses ...
    Philip Kendall Philip Kendall February 2005 Development
  • RZX reference samplesJust wondering, is it ok that neither Spin nor Spectaculator can replay the RZX reference samples provided on the [URL="http://www.ramsoft.bbk.org/rz…

    The Starquake one seems completely screwed to me. The first frame has a starting tstate count of 15, but then only 431 instructions before interrupt.
    Philip Kendall Philip Kendall July 2008 Emulators
  • InterruptsI need help emulating interrupts. My z80 core currently emulates all un-prefixed opcodes and the CB opcodes. I thought I would start on emulating co…

    ... peripheral
    pc = (address)
    tstate=tstate+7
    endif
    [/code ... cause interrupts several times a frame and other peripherals could cause ...
    Alcoholics Anonymous Alcoholics Anonymous July 2008 Emulators
  • Difference in emulator screen sizes and coloursSeeing as Greencard's gone out drinking... I've done a comparison between Spectaculator and ZXSpin. ZXSpin's full screen with border is taller than S…

    ... />
    We know at which TState the display starts to be ... /> We know how long a frame is, we know how long ... between the start of the frame and the start of the ... retrace starts and the next frame begins. You can't get ...
    Dunny Dunny December 2008 Emulators
  • User reviewsAs often requested (e.g. [URL="http://www.worldofspectrum.org/forums/showthread.php?t=18135"]here[/URL]), user reviews are now possible through the s…

    ... /INT line during the final tstate of an opcode following an ... second interrupt during the same frame.
    Bob Stains Bob Stains February 2009 Games
  • User reviewsAs often requested (e.g. [URL="http://www.worldofspectrum.org/forums/showthread.php?t=18135"]here[/URL]), user reviews are now possible through the s…

    ... /INT line during the final tstate of an opcode following an ... second interrupt during the same frame.[/QUOTE]

    Eh !?? I ...
    psj3809 psj3809 February 2009 Games
  • User reviewsAs often requested (e.g. [URL="http://www.worldofspectrum.org/forums/showthread.php?t=18135"]here[/URL]), user reviews are now possible through the s…

    ... /INT line during the final tstate of an opcode following an ... second interrupt during the same frame.[/QUOTE]

    *nods wisely ...
    Arjun Arjun February 2009 Games
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    NTSC Speccy
    frame length 0xe700 is 59136 tstates< ...

    vs TS2068
    frame length 0xe540 is 58688 tstates ... need to look for the tstate at the start of the ...
    Fred Fred April 2009 Hardware
  • BASin gets its (profile) sums wrong (sometimes)I often use BASin to time pieces of code, and I've found it to be useful, but I was testing a routine earlier, which took less than 2 seconds to run …

    ... line is executed, the delta TState count is added to an ... as many z80 instructions per frame as possible.

    D ...
    Dunny Dunny September 2012 Emulators
  • Contended Memory woes...Hello All, An iccle problem I have and was hoping one of you fine WoSers could bail me out again... :) I've noticed that my emulator is running sli…

    ... an instruction say has +5 tstate (not added via contention but ... say, you have one extra frame per 75 frames, this amounts ... 1000 tacts of discrepancy per frame. This is not something tiny ...
    introspec introspec June 2013 Emulators
<1234567…34>

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  • Emulator with frame advance?Are there any emulators which preferably both play RZX files and also (and here's the odd but important bit) feature a "frame advance" button so that…
  • Main Frame by ImageworksIs this game the same one as this one:<br /> <br /> [url]http://www.lemon64.com/?game_id=1472[/url]<br /> <br /> If so, the game was then also releas…
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