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<1…12131415161718…34>
  • 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…

    ... machines, I use a contended port and padding instructions that are ... sharing]this snapshot[/url] in SpecEmu while the emulation is paused ... this case much of initial port reads during the screen area ... it initially begins polling the port at.

    Edit: ...
    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…

    ... e ;[4]
    in a,($ff) ;[11]
    cp d
    port into A
    in ... a,($fd) ;[11]read port
    cp d ;[4]test ... in a,($fd) ;[11]read port
    cp d ;[4]test ... br /> Notice, it reads the port [i]twice[/i] and leaves ...
    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…

    ... bitmap bytes perfectly. Of course, port contention (and memory contention if ... a,c
    in a,($ff)
    cp b
    jr ... , he uses uses an uncontended port. I think the execution of ... the value read form the port is anything “less than” cyan ...
    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…

    ... loop seems to work in SpecEmu with minimal bounce of 1 ... , as it’s unnecessary). However, SpecEmu, as we’ve established, is ... —solid as a rock in SpecEmu, not hooking on at all ... -modifying code to inject the port number for different machines. A ...
    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…

    ... (4,5,6). According to SpecEmu, the address #073B in the ... HALT and reading the fb port in the main test (what ...
    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…

    ... value read from the fb port before 14368 is indeed #C9 ... />
    Gotta try the latest SpecEmu by Woody later. :) Thanks again!
    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…

    ... , it's not a single port number but a range of ... /> Yeah, SpecEmu should be working with the full range of port decodings :)
    Woody Woody 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…

    ... it's very likely a SpecEmu-specific thing after all. I ... #C079 (before the main fb port reading), the IN at #C079 ...
    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…

    ... at your latest version of SpecEmu and my +2A simultaneously, and ... exhibits some weird flickering patterns, SpecEmu shows exactly the same patterns ... machines (and just change the port number) . . .
    Ast_A_Moore Ast_A_Moore September 2017 Development
  • The best ZX Spectrum emulatorsIt's been suggested we add a sticky thread where people can recommend their favourite emulators. A couple of rules. 1. Don't just nomina…

    ... not emulate Interface1 , Microdrive, RS232 port and Zx Net is not ... the fence with the RS232 port emulation, I haven't implemented ... these days, including Spin, [s]SpecEmu[/s], Fuse & Spud.
    SpecEmu doesn't. Bloody slacker...
    rich_chandler rich_chandler September 2017 Emulators
  • A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…

    ... 3$ ;leaving

    ;Inject port addr & mask for controls ... a,254 ;high byte of port to read (%11111110) (initial ... E to compare
    cp $ff ;if it’s FFh (no ... .SHIFT"

    dummy_key defb $ff ;necessary for CPIR
    ;any ...
    Ast_A_Moore Ast_A_Moore October 2017 Development
  • Any emulator with divIDE IDE mode only ?Hi, Is there any emulator that supports divIDE in IDE mode only ( no divIDE ROM paging ) ? All seem to always enable divIDE ROM when divIDE interf…

    [quote="kpuchatek;925293"]IDE port of divIDE can be use ... Spectaculator don't support DivIDE; SpecEmu (I've got version 3 ...
    Zup Zup October 2017 Emulators
  • Detecting +3 / +2AWhat's a simple but reliable way to detect if code is running on a +2A/+3? My first though was to try switching to ROM2 and then checking for the …

    ... ) ;read from port $ffd
    inc a ;if value=$ff,
    jr ... must [i]not[/i] be $ff (obviously). Reading from the first ...
    Ast_A_Moore Ast_A_Moore December 2017 Development
  • The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…

    ... ) and I is set to #ff. The screen is supposed to ... normally.

    Strangely, neither SpecEmu nor RVM reproduces this particular ...
    Ast_A_Moore Ast_A_Moore February 2018 Development
  • Making sound using the BEEPER in AssemblyI had a look at the the documentation but it doesn't make sense to me. To make music just the beeper all I have to do is send ones and zeros to one o…

    ... around with the high-byte port address, so I just limited ... to two values: $40 and $ff.

    Both machines produce ...
    Ast_A_Moore Ast_A_Moore July 2018 Assembler
  • Making sound using the BEEPER in AssemblyI had a look at the the documentation but it doesn't make sense to me. To make music just the beeper all I have to do is send ones and zeros to one o…

    ... to
    a) make sure port hi-byte is not within ... #40-#7f and #c0-#ff
    b) do a cycle ...
    utz utz July 2018 Assembler
  • Making sound using the BEEPER in AssemblyI had a look at the the documentation but it doesn't make sense to me. To make music just the beeper all I have to do is send ones and zeros to one o…

    [quote="utz;943985"]a) make sure port hi-byte is not within #40-#7f and #c0-#ff[/quote]
    The latter range is irrelevant on the 48K. It’s only necessary to keep out of that range if you’re on a 128K and a contended bank is paged in.
    Ast_A_Moore Ast_A_Moore July 2018 Assembler
  • GLUF[url="http://www.retrosouls.net/"]retrosouls.net/[/url] https://youtu.be/P4F4XVbnNDY

    ... on the +2 in Fuse, SpecEmu, RVM, and zxsp with different ... spud don't know about "#ff floating bus" on grey +2 ...
    DenisGrachev DenisGrachev January 2019 Brand new software
  • A Yankee in IraqI'm testing the game on the zx next and it currently hangs right after the game starts no matter what timing regimen and contention pattern is chosen…

    ... the +3 floating bus through port 0x0ffd. I don't think ... /> The game also hangs on specemu in +3 mode.

    Alcoholics Anonymous Alcoholics Anonymous February 2019 Development
  • Were the SciFi Fighting Fantasy books so bad?I stopped reading FF books after about Armies Of Death, #36. But they started printing only fantasy based ones after #33 Sky Lord. They ran all the w…

    ... the mind set that FF should be made into ... my fave FF book, or any other book involving Port Blacksand, ... of touched more on port Blacksand than City of ... was a trip through Port Blacksand to reach Zanbar ... are partially based on the FF ones, too many story ...
    dm_boozefreek dm_boozefreek June 2019 Chit chat
  • 50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…

    ... ; attr into D, MSB of port addr into E
    l3 ... A
    in a,($ff) ; [11]read port 0x40FF into A
    robpearmain robpearmain June 2019 Development
  • Keyboard (simultan pressed keys) Test Program in MCode like Vyacheslav Strunov´s Port demo v3.1Anybody here knows of another good Keyboard Tester program (for simultanous pressed keys and in Machinecode) like this: Port Demonstration 3.1 by Vy…

    ... quote="Luzie;958422"]Tested with SpecEmu (and ZEsarUX which gives same ... Wow, I am shocked that SpecEmu didn't get this right ... .[/quote]You mean SpecEmu should act with ghosting ... for testing Fuller Joystick Input Port 127). Sneak preview:
    [ ...
    Luzie Luzie November 2019 Hardware
  • Mad MaxIts interesting that no Mad Max games ever came out in the 1980's despite it being a popular franchise. Its taken til 2015 for the first Mad Max game…

    ... taken from the movie. Just port it to Speccy and add ... ZX81 B&W port and Speccy colour port on the same ... 'inspirations' like the Freeway Fighter FF gamebook :)[/quote]

    Non ...
    Spectrum48K Spectrum48K February 2020 New game ideas
  • The latest build of Specemu?The latest version of Specemu (a fantastic emulator, BTW) I have is SpecEmu-3.1.b150912.zip, which is a year old now, but knowing Woody he's probably…

    I swear specemu had an io port logging feature but I can't find it in the last couple of versions of specemu that I have. Was it removed or did I dream it?
    Alcoholics Anonymous Alcoholics Anonymous March 2020 Emulators
  • The latest build of Specemu?The latest version of Specemu (a fantastic emulator, BTW) I have is SpecEmu-3.1.b150912.zip, which is a year old now, but knowing Woody he's probably…

    ... Anonymous;963642"]I swear specemu had an io port logging feature but ... last couple of versions of specemu that I have. Was it ... /> [/quote]
    Hmm. I think SpecEmu has always just had a ...
    Ast_A_Moore Ast_A_Moore March 2020 Emulators
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