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Search Again :: Adv Search 1000 results in 0.006s
<1234567…34>
  • Fuse/SPIN vs Spectaculator border timingsHello, I'm trying to figure out at which moments the 48K ULA samples the current border color into its internal latch. To do that I wrote a small …

    ... 48K ULA samples the current border color into its internal latch ... few lines on the top border at specific CPU ticks and ...
    kosarev kosarev April 2019 Emulators
  • what is the best..............hi there, could anyone tell me what is the best emulater as I no longer have a spectrum but would really like to get hold of an emulator but which on…

    ... moment, such as incorrect 48k border timings and R-Register emulation being ...
    Dunny Dunny April 2002 Emulators
  • Groundbreaking gamesWhich games really broke new ground? I mean the ones that actually got around the hardware limitations of the Spectrum. For example: Aquaplane - f…

    ... that played about with attribute/border timings or multiplexed multiple channels over ...
    Matt_B Matt_B February 2007 Games
  • Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …

    ... is a screenshot with RED border timings to show the above sourcecode ...
    ASM ASM November 2010 Development
  • Incorrect Spectrum +3 emulation: different results on Fuse and SpecEmuWhen developing and testing [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027591"]Rotatrix[/URL], I noticed different results on Fuse and S…

    ... , but emulators don't emulate border timings accurately?
    Einar Saukas Einar Saukas April 2012 Emulators
  • Incorrect Spectrum +3 emulation: different results on Fuse and SpecEmuWhen developing and testing [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027591"]Rotatrix[/URL], I noticed different results on Fuse and S…

    ... , but emulators don't emulate border timings accurately?[/QUOTE]

    I ... measurements than about emulators getting border timings right: it's a far ...
    Philip Kendall Philip Kendall April 2012 Emulators
  • Incorrect Spectrum +3 emulation: different results on Fuse and SpecEmuWhen developing and testing [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027591"]Rotatrix[/URL], I noticed different results on Fuse and S…

    It's funny, Arjun and I were discussing 48k border timings in #spin the other day - how emulators all use the 24Ts for left and right border from the old Sinclair FAQ.
    guesser guesser April 2012 Emulators
  • Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…

    ... ;628343]BTW, these timings may apply for the brazilian ... there are some differences in timings.

    I ... "]VideoTime[/URL] that examines border timings at different positions. In ... detailed information about the scanline timings.
    [/LIST]

    Einar Saukas Einar Saukas May 2012 Emulators
  • Spectrum Emulator that supports low resolutions and runs smoothlyHello to All, I have been trying to find a spectrum emulator that will work well through my CRT TV (using RGB to Scart) Most emulators seem to supp…

    ... /> I see now that the border timings are when states change internally ... imagined shortfall in the right border width.

    EDIT: looking ... cycles of CLK7 later than !Border goes high. The next 8 ...
    guesser guesser July 2012 Emulators
  • Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…

    ... intended to help adjust BIFROST* timings to work on the TK90X ... ;postcount=7"]#7[/URL], the border timings are also the same as ...
    Einar Saukas Einar Saukas August 2012 Emulators
  • Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…

    ... 128K timings.

    However, SpecEmu is also emulating TK90X border timing ... . According to tests, the TK90X border timings are 5603 T-states earlier ...
    Einar Saukas Einar Saukas August 2012 Emulators
  • Incorrect Spectrum +3 emulation: different results on Fuse and SpecEmuWhen developing and testing [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027591"]Rotatrix[/URL], I noticed different results on Fuse and S…

    ... ROM image.
    With Spectaculator timings and +3 ROM it will ... (with flicks).
    With Spectaculator timings and 128 ROM it will ... emulators had incorrect +2A/+3 border timings when I started this thread ...
    Einar Saukas Einar Saukas November 2012 Emulators
  • Incorrect Spectrum +3 emulation: different results on Fuse and SpecEmuWhen developing and testing [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027591"]Rotatrix[/URL], I noticed different results on Fuse and S…

    ... emulators had incorrect +2A/+3 border timings when I started this thread ...
    Arjun Arjun November 2012 Emulators
  • TKMEM - the 128K interface for 16K SpectrumsHello all! Here in Brazil, we have made a small production of an interface, totally based on Velesoft?s memory expansion ([url]http://velesoft.speccy…

    ... understand the ULA timings, though! It seems the timings are '5602 T ... -late) ZX-Spectrum 128K timings' except the border timings are one T-state ...
    zub zub January 2013 Hardware
  • Windows emus on LinuxYesterday I tested my new Fuduntu Linux distribution and of course my favorite windows emulators. I was really pleasantly surprised at how well they …

    ... the exact parameters of the border are still something you're ... 'll have to use the border timings and pixel clock to determine ... the TK 90X/95's border only changes at 8-pixel ...
    zub zub March 2013 Emulators
  • A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…

    ... of 8, and adjusted all timings accordingly. But if you try ... t be able to adjust timings properly, so the screen will ... compensate some variation in top border timings... but not much. Ideally ... own spriteLib accessed from top border should always take exactly ...
    Einar Saukas Einar Saukas December 2013 Brand new software
  • A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…

    ... of 8, and adjusted all timings accordingly. But if you try ... t be able to adjust timings properly, so the screen will ... compensate some variation in top border timings... but not much. Ideally ... own spriteLib accessed from top border should always take exactly ...
    DenisGrachev DenisGrachev December 2013 Brand new software
  • Communal Project for ASM NewbiesHi Folks, I tend to learn best by trying stuff and then going through the pain of it not working so that I can research and fix mistakes. I suspec…

    I played around with the border timings the other day, amazing idea, ... /> Also I'm flashing the border red for my hit tests ...
    colonel32 colonel32 January 2017 Assembler
  • New Version of MAME Emulator out with enhancements on Spectrum-EmulationNew Version 0.216 of MAME Emulator out with enhancements on Spectrum Emulation: [url="https://www.mamedev.org/?p=476"]https://mamedev.org/?p=476[/…

    ... more accurate memory access timings for the ZX Spectrum ... timing for screen and border updates, and simplified calculations ... /> * Also updated Z80 timings for MSX, Amstrad CPC, ... drivers: Restore irq length == 32 / border timings. (#9711) [holub]

    Luzie Luzie May 2022 Emulators
  • ScanlinesHere's an excerpt from the FAQ: [quote] Now for the timings of each line itself: define a screen line to start with 256 screen pixels, then border, …

    ... /> [quote]
    Now for the timings of each line itself: define ... with 256 screen pixels, then border, then horizontal retrace, and then ... , 24 T states of right border, 48 T states of horizontal ... 24 T states of left border.
    [/quote]

    Now ...
    GOC GOC July 2004 Development
  • Wanted: Code to wait until Border has been drawnWhen my IM2 interrupt fires, I want to wait until the ULA is past the first line of display before drawing. I know I need to wait about 14300T after…

    When my IM2 interrupt fires, I want to wait until the ULA is past the first line of display before drawing.

    I know I need to wait about 14300T after interrupt but how can I tell if the ULA is now past the border and onto the screen?
    robpearmain robpearmain September 2004 Development
  • EmuZWin - border in Full Screen modeWhenever I switch to Fullscreen mode I do not see the BORDER (and it is set to "thick"). Is it because my laptop is "widescreen"?

    Whenever I switch to Fullscreen mode I do not see the BORDER (and it is set to "thick").

    Is it because my laptop is "widescreen"?
    princm princm January 2005 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…

    ... with 256 screen pixels, then border (right), then horizontal retrace, ... and then border again." (left on next line ... What happens to the left border. Usually this is on the ... vertical retrace so the left border actually gets displayed in ...
    Unique Unique February 2005 Development
  • Setting the borderCan someone tell me best way to set the border to a given colour using machine code. Its there an operating system call or can I load up a memory loc…

    Can someone tell me best way to set the border to a given colour using machine code. Its there an operating system call or can I load up a memory location. Thanks.
    Mr Millside Mr Millside February 2005 Development
  • req: hack/poke for 3D deathchase border colourBack in the day, I used to have a version of 3d deathchase which had a black border instead of the usual white one, it made it much better, especiall…

    ... deathchase which had a black border instead of the usual white ...
    loony_jetman loony_jetman April 2006 Games
  • Why does Spectrum display has a border?Ok, this is problbly simple and very basic question but I don'r remember seeing an answer anywhere. Don't you think, that at first glance it is irr…

    ... we leave an empty unused border if we could place some ... seems to me that eliminating border could have been achieved by ... whole screen, thus eliminating the border(it would look better imo ...
    Ralf Ralf November 2006 Sinclair Miscellaneous
  • Black paper, white border. Ram fault?We have a speccy that wont work properly. When we power it up, we get white border around a black screen. We swapped the rom and ula with a working o…

    We have a speccy that wont work properly. When we power it up, we get white border around a black screen. We swapped the rom and ula with a working one, and we got the same result.

    is this a ram fault? How can we check ram chips?
    Arda Arda December 2006 Hardware
  • out (254) - Bright Border[code] ld a,%00000111 out (254),a [/code] The above changes the border to white. Is there a way to set the border to Bright white? Cheers

    [code]
    ld a,%00000111
    out (254),a
    [/code]

    The above changes the border to white.

    Is there a way to set the border to Bright white?

    Cheers
    robpearmain robpearmain February 2007 Development
  • Border size?Hi I've read the documentation on the border in the CSS. But I think I've managed to missread somthings, perhaps som one can explain. it says 64 bord…

    ... read the documentation on the border in the CSS.
    But ... explain.
    it says 64 border lines , 192 screen and 56 ... border lines again.
    64+56 = ... goes for left and right border the would 48+48=96 ...
    Jmc Jmc April 2007 Emulators
  • Border emulationHow is the border emulated to do all the fancy little tricks such as in Aquaplane? I've got some basic border emulation working but it only displays…

    How is the border emulated to do all the ... /> I've got some basic border emulation working but it only ... like Aquaplane or Starion the border colour is being changed as ... the screen and border are being redrawn. How is ...
    rich_chandler rich_chandler May 2007 Emulators
<1234567…34>

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Related Threads

  • Fuse/SPIN vs Spectaculator border timingsHello,<br /> <br /> I'm trying to figure out at which moments the 48K ULA samples the current border color into its internal latch. To do that I wr…
  • Wanted: Code to wait until Border has been drawnWhen my IM2 interrupt fires, I want to wait until the ULA is past the first line of display before drawing.<br /> <br /> I know I need to wait about …
  • EmuZWin - border in Full Screen modeWhenever I switch to Fullscreen mode I do not see the BORDER (and it is set to "thick").<br /> <br /> Is it because my laptop is "widescreen"?
  • 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…
  • Setting the borderCan someone tell me best way to set the border to a given colour using machine code. Its there an operating system call or can I load up a memory loc…
  • Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
  • req: hack/poke for 3D deathchase border colourBack in the day, I used to have a version of 3d deathchase which had a black border instead of the usual white one, it made it much better, especiall…
  • Why does Spectrum display has a border?Ok, this is problbly simple and very basic question but I don'r remember seeing an answer anywhere.<br /> <br /> Don't you think, that at first glan…
  • Black paper, white border. Ram fault?We have a speccy that wont work properly. When we power it up, we get white border around a black screen. We swapped the rom and ula with a working o…
  • out (254) - Bright Border[code]<br /> ld a,%00000111<br /> out (254),a<br /> [/code]<br /> <br /> The above changes the border to white.<br /> <br /> Is there a way to set …

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