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<1…14151617181920…34>
  • IX register - using/problemsAre there any rules on using the IX register? Are there any restrictions on the memory locations that it can access? Yes, I know it's slower than us…

    [QUOTE=Paradigm Shifter;739302]Those are the worst kind of bugs to track down, so I don't consider it small! It's bummed in the gob, improperly.[/QUOTE]
    Don't use the ROM routines and then it'll never be an issue.
    rich_chandler rich_chandler December 2013 Development
  • IX register - using/problemsAre there any rules on using the IX register? Are there any restrictions on the memory locations that it can access? Yes, I know it's slower than us…

    ... ;739305]Don't use the ROM routines and then it'll never ... /> But in order to avoid ROM use for interrupts, you'd ...
    The_Bert The_Bert December 2013 Development
  • The Elite ZX Spectrum bluetooth keyboard and their implementation of key ghosting.They have plans to release it September 2014. [url]http://bluetoothzxspectrum.elite-systems.co.uk/index.php[/url] They have also a Kickstarter page,…

    ... (except when you use the ROM routines to read the keyboard).[/QUOTE ...
    Hikaru Hikaru December 2013 Hardware
  • Spectrum Utility Routines Compendium (pending)I couldn't make up my mind into which section to put this, so it's ended up here for some tenuous reason. I haven't forgotten about this. I've been …

    ... , Mcode_Parameters, Numbers, Printing_Graphics, Random, Relocating_Mcode, ROM, ROM-routines, SaveLoad, Storing_Mcode, Strings, TXT2EMU, Variables ... screen fill
    ** Spectrum 48k ROM routines
    ** Calculating FN memory usage ...
    Battle Bunny Battle Bunny December 2013 Announcements
  • Idiots Guide......To machine code, or assembler language...whatever the appropriate term is Basically at this stage I want to fiddle about and try and get used to…

    ... Vickers book; for the Spectrum ROM, the Logan/O'Hara disassembly ... Ian Logan, which explains the ROM routines and how to use the ...
    Battle Bunny Battle Bunny January 2014 Development
  • Outputting debug trace to RS232 (assembly)Hi Guys, I'm working on a game at the moment (written in assembly) but I am really needing to write out a debug trace of what is going on with the p…

    ... ]
    0x00BC in the IF1 ROM is the "START-4" routine ... returning from a IF1 main ROM call (it is not) and ... isn't ready to calling ROM routines.
    BloodBaz BloodBaz January 2014 Development
  • Outputting debug trace to RS232 (assembly)Hi Guys, I'm working on a game at the moment (written in assembly) but I am really needing to write out a debug trace of what is going on with the p…

    ... isn't ready to calling ROM routines.[/QUOTE]

    Have you ...
    guesser guesser January 2014 Development
  • Outputting debug trace to RS232 (assembly)Hi Guys, I'm working on a game at the moment (written in assembly) but I am really needing to write out a debug trace of what is going on with the p…

    tstih wrote some IF1 serial port routines to send and receive at 115200(!) and there's no reliance on the IF1 ROM routines. Details in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=34291"]this thread[/URL]
    jp jp January 2014 Development
  • Turbo save?I'm doing some experiments with turbo loaders, and I don't know how to save turbo blocks on virtual tapes. Spectaculator and fuse don't seem to save…

    ... routine is based on the ROM routines, so maybe there is a ...
    Zup Zup January 2014 Emulators
  • Turbo save?I'm doing some experiments with turbo loaders, and I don't know how to save turbo blocks on virtual tapes. Spectaculator and fuse don't seem to save…

    ... my usual tried and tested routines :)


    [QUOTE=Zup ... routine is based on the ROM routines, so maybe there is a ...
    leespoons leespoons January 2014 Emulators
  • Are there any custom +3 DOS file systems?I'm looking to see if there are any custom +3 DOS disk file systems available rather than the 40 track, 9 sector, 512 bytes/sector (I think that is r…

    ... as I said before, the ROM routines will only read discs with ...
    Zup Zup January 2014 Hardware
  • Are there any custom +3 DOS file systems?I'm looking to see if there are any custom +3 DOS disk file systems available rather than the 40 track, 9 sector, 512 bytes/sector (I think that is r…

    ... as I said before, the ROM routines will only read discs with ...
    The_Bert The_Bert January 2014 Hardware
  • PlusDlite problems with 128K modelsLast year I developed the PlusDlite, and already shipped out a couple of them. Only recently I discovered some problems with 128K models. I remember…

    ... for a 27C64 ROM (allthough the ZX Spectrum ROM is another type ... also removed the PlusDlite's ROM and RAM and disconnected /CSROM ... because of normal ZX Spectrum ROM routines.

    [B]4. ... routine is performed (the PlusDlite ROM keeps paged in).
    But ...
    bverstee bverstee February 2014 Hardware
  • Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…

    ... picture.

    Can the rom calls for printing text be ... ][/QUOTE]

    No, standart rom routines dont support this.
    You ...
    Jerri Jerri February 2014 Development
  • Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…

    [QUOTE=Jerri;752484]No, standart rom routines dont support this.
    You ...
    Speccy_James Speccy_James February 2014 Development
  • Programming again with the ZX SpectrumI am going to take a blast at programming for the Spectrum again. Its bee a long time since I have done this. I need to refresh my memory and maybe l…

    ... mentioned, The Complete Spectrum ROM Disassembly, is a must ... .cgi?regexp=^Complete+Spectrum+ROM+Disassembly%2c+The$& ... loadpics=3"]The Complete Spectrum ROM Disassembly[/URL][/QUOTE]
    ... that learning how the ROM routines isn't of particular importance ...
    Morkin Morkin February 2014 Sinclair Basic
  • Is ESXDOS flexible enough to incorporate e.g. Spectranet commands?I was just discussing the idea with someone about the wish some people have to be able to combine interfaces such as DivIDE (Plus) / DivMMC EnJOY! wi…

    ... .

    Obviously having switchable rom routines in the DIVIde to simulate ... combined into a single mega rom!
    smogit smogit February 2014 Hardware
  • Is ESXDOS flexible enough to incorporate e.g. Spectranet commands?I was just discussing the idea with someone about the wish some people have to be able to combine interfaces such as DivIDE (Plus) / DivMMC EnJOY! wi…

    ... Spectranet) is attached, with the ROM disabled
    - All commands ... command quickly loads the 'B'-rom into the 'A'-RAM ... to BASIC, the ESXDOS rom is used to page in ... needed for the 'B'-ROM routines, and is only paged ... in when the 'B'-ROM is paged in.
    ...
    bverstee bverstee February 2014 Hardware
  • Mercenary 1+2 CompendiumDear all users of +3 disks, I am an eager fan of Mercenary game, in which I made a good deal of progress years ago. I was looking for some standart …

    ... game to work with standart ROM routines (to be downloaded on my ...
    Hood Hood February 2014 Games
  • Mercenary 1+2 CompendiumDear all users of +3 disks, I am an eager fan of Mercenary game, in which I made a good deal of progress years ago. I was looking for some standart …

    ... load as a savegame, using ROM routines. This option involves analizing the ... then convert it to standard ROM load.

    b) Load ... those patches to load from ROM routines... to convert them to +3DOS ...
    Zup Zup February 2014 Games
  • Mercenary 1+2 CompendiumDear all users of +3 disks, I am an eager fan of Mercenary game, in which I made a good deal of progress years ago. I was looking for some standart …

    ... load as a savegame, using ROM routines. This option involves analizing the ... those patches to load from ROM routines... to convert them to + ... I adapted the load/save routines in the Mercenary 1. I ... bended slightly its load/save routines and the result is, that ...
    Hood Hood February 2014 Games
  • eVALuating $ in +3 BasicHi all, I was very interested in the thread below about re-starting Basic, and remember reasonable amounts from zx81 and early Spectrums. But I now h…

    I'm sure there must be some way you could call the ROM routines to convert text into tokens, but I'm unfamiliar with the 128/+3 ROMs. After all, the editor does exactly that so...

    BattleBunny to the rescue?

    D.
    Dunny Dunny March 2014 Sinclair Basic
  • eVALuating $ in +3 BasicHi all, I was very interested in the thread below about re-starting Basic, and remember reasonable amounts from zx81 and early Spectrums. But I now h…

    ... way you could call the ROM routines to convert text into tokens ... I don't use the ROM tokenize routine, as it doesn ... , although I do use the ROM token table to check for ...
    Battle Bunny Battle Bunny March 2014 Sinclair Basic
  • Batman the movie tape file on divideHas anyone managed to get this working on divide?. Whenever i use any of the tape files on wos,i am presented with the frozen loading screen,before …

    Batman the movie don't use ROM routines to load, so it won't load in divide.
    Zup Zup March 2014 Games
  • danish piratesHi guys! In early days of spectrum games they were cracked by danish pirates. Does anyone know how the turbo loader save mode was made? -sandman & …

    ... games, but they used the ROM routines, but perhaps some of the ... a tweaked copy of the ROM save routine in upper mem ...
    Sokurah Sokurah March 2014 Games
  • danish piratesHi guys! In early days of spectrum games they were cracked by danish pirates. Does anyone know how the turbo loader save mode was made? -sandman & …

    ... games, but they used the ROM routines, but perhaps some of the ... a tweaked copy of the ROM save routine in upper mem ...
    Frankie Frankie March 2014 Games
  • PC to +3 communicationsHi I'm going to explore the abilities of my +3 to communicate with a PC. The "natural" ways to do that would be via serial or parallel link. I've b…

    ... />
    There is in the ROM routines to read and write to ...
    1024MAK 1024MAK March 2014 Hardware
  • CIRCLEHi, I'd like to draw a circle x,y,r using the BASIC-ROM subroutines. I've put x, y and r onto the calculator stack and used CALL #232D and RET. I g…

    ... ?

    The Complete Spectrum ROM Disassembly (p201) states:
    [URL ... returning to BASIC or calling ROM routines if IY is used in ...
    dbolli dbolli April 2014 Development
  • Totally random idea for the hardware nuts to exploreWhen it comes to multi-player games, how hard would it be to generate a second display from a single Speccy, instead of trying to link up machines, s…

    ... it wouldn't be running ROM routines so that doesn't matter ... 's ability to replace the ROM with another one.

    ROM addressing space it wouldn't ...
    joefish joefish April 2014 Hardware
  • Totally random idea for the hardware nuts to exploreWhen it comes to multi-player games, how hard would it be to generate a second display from a single Speccy, instead of trying to link up machines, s…

    ... a RAM mapped over the ROM address space, what would ... be avoided, such that the ROM routines still operate at normal speed ... />
    If the Spectrum's ROM routines were to slow right down ... (including loading routines) then the whole system would ...
    joefish joefish April 2014 Hardware
<1…14151617181920…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
  • Celebrity deaths...
    mel the bell on April 20

HitBox

Word Docs Hits
rom 15.6K 29.7K
routines 5.1K 6.5K
16k 5.5K 7.7K
version 54.5K 78.6K

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