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<1…11121314151617…34>
  • ZXMAK2Hi everyone, I'm glad to present you the latest version of my emulator - ZXMAK2 :) There are a lot of changes were made since the last topic about t…

    ... XNA4 host;
    - fixed some port masks for ATM & Scorpion ... add a feature from the SpecEmu, which supports undocumented ULA behavior ...
    Pegaz Pegaz February 2015 Emulators
  • Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…

    ... example, the kind of breakpoints Specemu supports.
    * Breakpoint on entering ... a specified memory address/IO port
    * Breakpoint on executing a ...
    chernandezba chernandezba February 2015 Emulators
  • 1-Bit Sound AccuracyI'm hoping someone can give this snapshot a try on a real machine (just press enter to start the music): https://drive.google.com/file/d/0B6XhJJ33xp…

    ... utz. I was listening on specemu and thought that it wasn ... about 200T (8 bit port write, 16 bit port write, memory write ... 195T. I hadn't considered port contention so it's not ...
    Alcoholics Anonymous Alcoholics Anonymous September 2015 Development
  • 1-Bit Sound AccuracyI'm hoping someone can give this snapshot a try on a real machine (just press enter to start the music): https://drive.google.com/file/d/0B6XhJJ33xp…

    SpecEmu I think is useful in ... /> [quote]I hadn't considered port contention so it's not ...
    Hikaru Hikaru September 2015 Development
  • 1-Bit Sound AccuracyI'm hoping someone can give this snapshot a try on a real machine (just press enter to start the music): https://drive.google.com/file/d/0B6XhJJ33xp…

    ... beeper sound from the MIC port only, so that's what ... raw signal from the mic port and can feed it through ... what I am hearing in specemu is exactly that.. the original ...
    Alcoholics Anonymous Alcoholics Anonymous September 2015 Development
  • Bomb Munchies - preview releaseBomb Munchies Preview release Version 12th Jan 2014 [URL=http://s979.photobucket.com/user/MatGubbins/media/bmsix_zpsc33279a2.gif.html][IMG]http://i…

    ... added this just now to SpecEmu and put a test release ... ://homepage.ntlworld.com/e.tinney/SpecEmu/Test/SpecEmu-3.1.b071115.zip ... />
    You can choose port 31 or port 55 for Kempston emulation ... . Personally I think joefish's port 55 for Kempston was an ...
    Woody Woody November 2015 Brand new software
  • Bomb Munchies - preview releaseBomb Munchies Preview release Version 12th Jan 2014 [URL=http://s979.photobucket.com/user/MatGubbins/media/bmsix_zpsc33279a2.gif.html][IMG]http://i…

    ... another pad and free USB port then add another pad)
    Once done, load in SpecEmu
    Options, Options, Input Devices ... up and running

    SpecEmu
    Options... Options... Input Devices ... out line 20 (to read port 55) and still no ...
    MatGubbins MatGubbins November 2015 Brand new software
  • NTSC Compatibility?Correct me if I'm wrong, but wasn't the Timex 2068 the only NTSC clone built of the ZX Spectrum? And I use clone lightly... From what I underst…

    ... CPU reads an I/O port address that does not have ... pull-up resistors are fitted, FF hex.

    In the ... [CPU, ROM, upper RAM, expansion port]. If the ULA is reading ... same time will not return FF hex, but whatever value the ...
    1024MAK 1024MAK December 2015 Games
  • A doubt about IN and OUTIN (and OUT) can use bc to define a 16 bit port to be read or write, when used as in r,(c) or out (c),r. Also, if you use in a,(n) or out (n),a yo…

    ... 5
    i.e. (Port) $FE+$100*($FF-2^n) as n ...
    dbolli dbolli January 2016 Development
  • A doubt about IN and OUTIN (and OUT) can use bc to define a 16 bit port to be read or write, when used as in r,(c) or out (c),r. Also, if you use in a,(n) or out (n),a yo…

    ... the low byte of the port to be read or write ... high byte of the port? It is zero, $ff, the value of ... , ($20)[/code]
    will read port $E020 into A
    and ... /> will write A [$E0] to port $E020

    This form ...
    GReW GReW January 2016 Development
  • A doubt about IN and OUTIN (and OUT) can use bc to define a 16 bit port to be read or write, when used as in r,(c) or out (c),r. Also, if you use in a,(n) or out (n),a yo…

    ... />
    That code will read port $7FFD (32765). Which on a ... 48K speecy will either return $FF or pixel/ATTR data bytes ...
    GReW GReW January 2016 Development
  • The Warlock Of Firetop MountainI know this game isn't everyone's idea of a great game but I've been playing this since it was released in 1984 and I've still not managed to complet…

    ... is my all time favourite FF book. Forest of Doom looks ... world FF game, combining several of the books storylines around Port Blacksand ... kill him then back to port Blacksand to join the thieves ...
    dm_boozefreek dm_boozefreek February 2016 Games
  • New game: SETO TAISHO VS YOKAIHello Spec-chums! At last, my new game is available for download: [img]http://www.alessandrogrussu.it/zx/Seto-art.jpg[/img] [b]Features:[/b]…

    ... . If software read joystick port after interrupt (border time) ... , because D5 of joystick port = log.1 then D5 ... start game if joystick port return all 7 data ... ,(#1F) ;read kempston joy port
    AND #E0 ; ... FF
    JR Z,MODERNJOY ;if all 7 bits of joystick port ...
    velesoft velesoft March 2016 Brand new software
  • Spectrum +2A floating bus portHi As I discovered in the past, Spectrum +2A (and probably +3) do have floating bus port. But it is not shown on all unused ports, only on some po…

    ... case – not related to the #FF port issue, but that could have ... then applied to it the #FF patch as well – the D7 ...
    secarica secarica August 2016 Hardware
  • A few questions about sound and keys in BASICIf I want sound in my BASIC game I have to use BEEP right ? It seems to lock up the CPU for far too long . On Arjun's page I found how to use CALL 94…

    ... only needs to check one port.

    A method for ... any one key, then D=$ff and E identifies the key ...
    Battle Bunny Battle Bunny December 2016 Sinclair Basic
  • c64 .sid player coming soon to specy 128!!!c64 .sid player coming soon to specy 128!!! the first old version uses only square waves, 4 years ago: https://www.youtube.com/watch?v=6CKt9noxA7s…

    ... to it
    ld b,#FF
    in a,(c) ;and ... a ;YM2149F would just return #FF in this case
    jr ... things I've noticed. The port number for 128K page switching ...
    Hikaru Hikaru March 2017 Announcements
  • c64 .sid player coming soon to specy 128!!!c64 .sid player coming soon to specy 128!!! the first old version uses only square waves, 4 years ago: https://www.youtube.com/watch?v=6CKt9noxA7s…

    ... />
    I went through with SpecEmu's debugger, and on +2a ... /faq/reference/128kreference.htm
    Port 0x1ffd responds as follows:
    Bit 4: Printer port strobe.
    FrankT FrankT March 2017 Announcements
  • c64 .sid player coming soon to specy 128!!!c64 .sid player coming soon to specy 128!!! the first old version uses only square waves, 4 years ago: https://www.youtube.com/watch?v=6CKt9noxA7s…

    ... ;898689"]I went through with SpecEmu's debugger, and on + ... faq/reference/128kreference.htm
    Port 0x1ffd responds as follows:
    Bit 4: Printer port strobe.[/quote]
    Oh ****, ... I saw this 1ffdh port earlier (some years ago)
    Geco Geco March 2017 Announcements
  • SD Card Interfaces for the ZX Spectrum : the complete list OK I admit it : this thread will start life as the incomplete list of SD card interfaces but the aim is to list the lot

    ... :

    ================================================================================
    PORT ADDRESS DECODING
    hex/dec ... IF1bOS,WR-on
    #FF/255 xxxxxxxx11111111 xxxxxxxx11111111 - IF1bisRAM& ...
    Black_Cat Black_Cat March 2017 Hardware
  • West Bank only running with Kempston Joystick on ZX SpinI can get West Bank [url="http://www.worldofspectrum.org/infoseekid.cgi?id=0005664"]worldofspectrum.org/infoseekid.cgi?id=0005664[/url] only to run w…

    ... line A5 for port address decoding, so, any port with bit 5 ... =0000763) reads Kempston joystick from port $DF (223) - and it works ... 4).
    [/quote]

    SpecEmu cannot run Bumpy either, as ... emulators.
    If I use SpecEmu on a daily basis and ...
    Pegaz Pegaz April 2017 Emulators
  • West Bank only running with Kempston Joystick on ZX SpinI can get West Bank [url="http://www.worldofspectrum.org/infoseekid.cgi?id=0005664"]worldofspectrum.org/infoseekid.cgi?id=0005664[/url] only to run w…

    [quote="Pegaz;905396"]
    SpecEmu cannot run Bumpy either, as ... emulators.
    If I use SpecEmu on a daily basis and ... read the Kempston joystick on port 31.
    [code]
    West ...
    GReW GReW April 2017 Emulators
  • West Bank only running with Kempston Joystick on ZX SpinI can get West Bank [url="http://www.worldofspectrum.org/infoseekid.cgi?id=0005664"]worldofspectrum.org/infoseekid.cgi?id=0005664[/url] only to run w…

    ... read the Kempston joystick on port 31.
    [code]
    West ... version of the game on SpecEmu, Fuse and real hardware toastrack ...
    Luzie Luzie April 2017 Emulators
  • Double Buffering Artefacts on Real HardwareI have a project that I've played around with for a while and always tested using emulators, either ZX Spin or Spectaculator. It is a 128k game th…

    ... be avoided by using contended port for Kempston.[/quote]

    SpecEmu with Kempston disabled:

    port?

    Also, there's ...
    Hikaru Hikaru May 2017 Development
  • ULAplus palette levels of blue in emulatorsTell me somebody, why ULAplus palette levels of blue are $00,$6F,$90,$FF in ZXSpin, SpecEmu, Zero and ZEsarUX, instead of $00,$55,$AA,$FF as they sho…

    Ok, levels of blue are little different:
    ZXSpin - $00,$6F,$90,$FF
    SpecEmu - $00,$70,$8F,$FF
    ZEsarUX - $00,$6D,$B6,$FF

    But still - why they are not $00,$55,$AA,$FF?
    weiv weiv August 2017 Emulators
  • Need help from people with a +2A/+3Started a topic [url="https://www.worldofspectrum.org/forums/discussion/55141/need-help-from-people-with-a-2a-3"]here[/url] to get a broader reach, b…

    ... the border and the blank (#FF) T states. Odd how it ... be read from the fb port is not really clear to ... . The actual test, like the port reading and whatnot shouldn't ...
    Hikaru Hikaru September 2017 Development
  • Need help from people with a +2A/+3Started a topic [url="https://www.worldofspectrum.org/forums/discussion/55141/need-help-from-people-with-a-2a-3"]here[/url] to get a broader reach, b…

    [quote="Woody;921243"]Why 15? Dunno![/quote]
    If @Hikaru’s assumption is correct, and instead of #FF the port holds the last latched value, then it makes sense: it’s white/yellow ink on blue paper (the bottom two rows) after a wraparound.
    Ast_A_Moore Ast_A_Moore September 2017 Development
  • Need help from people with a +2A/+3Started a topic [url="https://www.worldofspectrum.org/forums/discussion/55141/need-help-from-people-with-a-2a-3"]here[/url] to get a broader reach, b…

    ... 've added preliminary emulation to SpecEmu. It could still do with ... />
    [code]
    ;Floating bus port detection
    ;Returns: CF=0 ... if found, BC = port (Sinclair ULA: #FFFF, Amstrad ULA ...
    Hikaru Hikaru September 2017 Development
<1…11121314151617…34>

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