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<1234567…34>
  • +3e ROMs v1.36 & ResiDOS v2.06 releasedI've released an update to the +3e ROMs, which are now at v1.36. The main change here is the removal of some old ATA drive detection code at reset, …

    ... on - whatever was in the +3dos buffer prior to the copy, I ...
    icabod icabod April 2008 Announcements
  • +3e ROMs v1.36 & ResiDOS v2.06 releasedI've released an update to the +3e ROMs, which are now at v1.36. The main change here is the removal of some old ATA drive detection code at reset, …

    ... on - whatever was in the +3dos buffer prior to the copy, I ...
    glancaster glancaster April 2008 Announcements
  • What memory pages are being used in a +3DOS disk operation?To make a long story short: what pages are in use by +3DOS while doing read operations from the disk drive? Now, for the details, for those interest…

    There's the +3DOS buffer cache -- that's (IIRC) 4k, ...
    John Elliott John Elliott March 2011 Development
  • The ZX printer buffer in +3 modeI have a few programs on .DSK images that were transferred from Timex disks, but some of them have code starting at 23296. Most of the time the code …

    ... and use the printer buffer area while in +3DOS? I'm trying ...
    zxbruno zxbruno December 2008 Sinclair Miscellaneous
  • RAM used / corrupted by +3DOSAs I said previously, [url=http://www.worldofspectrum.org/forums/showthread.php?t=41775]I'm trying to put some games in hard disk[/url] so they can b…

    ... is used as "scratch" in +3DOS, but I don't think ... can be used as a buffer).

    Can anyone explain ...
    Zup Zup December 2012 Games
  • Disabling the +3 disk buffer; yes, but how?I would like to disable the +3 disk buffer in order to retrieve those 4K from the machine's RAMdisk. By reading the computer manual and some posts on…

    ... to disable the +3 disk buffer in order to retrieve those ... yet understand how to call +3DOS routines from BASIC. I guess ...
    Alessandro Grussu Alessandro Grussu February 2013 Sinclair Basic
  • +3DOS questionIn the documentation for the +3DOS functions 'DOS GET 1346' and 'DOS SET 1346' it's stated that the copy buffer can't be bigger than 4 sectors (i.e. …

    In the documentation for the +3DOS functions 'DOS GET 1346' and ' ... 's stated that the copy buffer can't be bigger than ... settings i impose on the buffer/ramdisk configuration

    *More ...
    The_Bert The_Bert February 2014 Sinclair Miscellaneous
  • MakeTZX DMA Buffer Overrun ?Okay folks, Does anyone know why I get DMA Buffer Overruns when using MakeTZX. Could it be anything to do with my SB Enironment string or anything …

    ... know why I get DMA Buffer Overruns when using MakeTZX. Could ... it possible to change the buffer at all ?

    Just ...
    Andrew Barker Andrew Barker January 2003 Sinclair Miscellaneous
  • Buffer AdventureQuite a few months ago, probably this year but well before the 60-day history kept on eBay, I was outbid on a copy of Buffer Adventure by someone who…

    ... outbid on a copy of Buffer Adventure by someone whose user ...
    Battle Bunny Battle Bunny September 2005 MIA/STP/SDP
  • Return of Speccy screen buffer formatI recently discovered that the Spectrum screen buffer format that allows only two colours in an 8x8 pixel block has made its return in a slightly dif…

    ... discovered that the Spectrum screen buffer format that allows only two ...
    vilcans vilcans November 2005 Sinclair Miscellaneous
  • +3dos BASIC Headers - Char and Number ArraysHi. I'm almost ready to release the first beta of "3eExplorer" my utility for extracting files from a +3e HDD/CF image. It's actually going quite w…

    ... I can tell in the +3DOS file header the "+3 BASIC ...
    icabod icabod July 2007 Development
  • So... you want to format your 3.5" as 720K eh?Well, i've been trying to get hold of an application to make proper use of my 3.5" +3 floppy disks but i haven't been able to find any. I stumbled up…

    ... HEAD0 ; Our sector information buffer
    LD B, ... /> DISK DI ; Main +3DOS access subroutine - Disable interrupts before ... DISK1 ; Call the +3DOS subroutine
    PUSH BC ...
    NaMcO NaMcO December 2008 Development
  • Writing to the screen from a bufferI?m designing a game and am spending a bit of time trying different ideas before I commit my self. I?m currently thinking of writing data to a buffer…

    ... of writing data to a buffer and then writing this ?back ... buffer? to the screen. Can the ... screen be drawn from the buffer without flicker ? If not, what ...
    Mr Millside Mr Millside June 2009 Development
  • Question on copying screen bufferHi, Al my prevoius games were copying graphics directly to screen memory starting at 16384. Now I'm experimenting with screen buffer where I could d…

    ... I'm experimenting with screen buffer where I could draw my ... just copying static image from buffer to screen after HALT.
    Ralf Ralf December 2009 Development
  • What memory pages are being used in a +3DOS disk operation?To make a long story short: what pages are in use by +3DOS while doing read operations from the disk drive? Now, for the details, for those interest…

    ... pages are in use by +3DOS while doing read operations from ... page 7 is used by +3DOS (as stated in the +3 ...
    mcleod_ideafix mcleod_ideafix March 2011 Development
  • CPCDiskXP v2.1 Added support (Open/Create Dsk's, add/delete/rename files) for +3DOSCPCDiskXP v2.1 Changelog (since v2.0): [LIST] [*]DSKEditor - Added full support (Open/Create Dsk's, add/delete/rename files) for the following format…

    ... PCW? (untested,supposedly compatible with +3DOS, based on CPM...)
    < ... 720K (712K Free)
    PCW/+3DOS - Double Side - 80 Tracks - ... 800K (788K Free)
    PCW/+3DOS - Double Side - 84 Tracks - ... 840K (828K Free)
    PCW/+3DOS - Double Side - 86 Tracks - ...
    Mochilote Mochilote May 2011 Emulators
  • Open and read a file using +3DOS in MCForgive me if this has been asked and answered before, I've spent a fair few hours searching the forums and looking for books on the subject, all wit…

    ... read a file, using the +3DOS section of the Spectrum +3 ...
    RobeeeJay RobeeeJay May 2012 Development
  • Sound programs that use +3DOS/AssemblerHi I am working on my final JSWed project and have nearly finished but i am considering changing the standard in game tune you get,the editor instruc…

    ... music can be imported but +3DOS and Assembler are the only ...
    jammajup jammajup April 2013 Development
  • Varios +3(e)DOS questions?I'm converting tape games to disk, for being used in my +3e. I'm trying to convert them to standard BASIC loaders, so files could be copied using BAS…

    ... about the worst case (standard +3DOS):

    - How many files ... .

    - Before making a +3DOS call, the memory map must ... have to keep the printer buffer and system variables intact? When ... guess +3 BASIC has initialized +3DOS. Do I need to do ...
    Zup Zup May 2013 Development
  • Using the stack to blit bufferI was using a ldir to blit my back buffer to the screen RAM, and it was working pretty well if not rather slow. After reading about using the stack …

    ... ldir to blit my back buffer to the screen RAM, and ... like:

    ld sp, buffer
    pop af
    pop ...
    Atari_Jetman Atari_Jetman February 2014 Development
  • From RAM to dim v$() "video buffer" SPEED UP!Hi! This question is related to "quick RAM copy using LET in Basic" ([url]http://www.worldofspectrum.org/forums/showthread.php?t=44296[/url]). Wel…

    ... *20) DIM variable for "video buffer".
    - A zone of RAM ... /make my v$ string "video buffer" for paint whole level screen ...
    Hark0 Hark0 March 2014 Sinclair Basic
  • Double-Buffer ScreenFor my Alien Breed Speccy re-write I decided to use a Double Buffer (DB) or 'Back Screen' to draw all the game action onto, before shuffling the whol…

    ... decided to use a Double Buffer (DB) or 'Back Screen' to ...
    LuMan LuMan April 2014 Development
  • Double Buffer UtilityHi Folks, I've been experimenting with double buffering on a 48k Speccy for a small project I'm working on. After reading lots of good advice here…

    ... self.createBuffer() #1 - Create the buffer
    self.specifyCodeAddress() #2 - Specify ...

    #1 - Create the buffer
    def createBuffer(self):
    KrazyKattapilla KrazyKattapilla August 2014 Development
  • Jetset Willy ATTR Buffer 2Does anyone understand how Jetset Willy uses the system vars area as screen ATTR buffer 2? H5C00 D23552. Thanks

    Does anyone understand how Jetset Willy uses the system vars area as screen ATTR buffer 2?

    H5C00 D23552.

    Thanks
    stevebroad stevebroad September 2014 Sinclair Miscellaneous
  • Buffer to screen - how much?[FONT=Calibri][SIZE=3]I am starting to build a new game and am researching different ways to accomplish what I need to do. My question is, is it poss…

    ... possible to copy a back buffer of size 4096 bytes to ...
    Mr Millside Mr Millside September 2014 Development
  • Screen buffer Tip from Raff CeccoRaff very kindly gave me this tip: "Incidentally, I remembered a trick I used on the Z80 for extra speed: When clearing the screen buffer, it was a…

    ... />
    When clearing the screen buffer, it was actually much quicker ...
    alienbanana alienbanana October 2014 Development
  • +3DOS routine missing in the +3 manualThe other day I realised the details of the +3DOS DOS DELETE routine are missing in the [url="http://www.worldofspectrum.org/ZXSpectrum128+3Manual/ch…

    ... realised the details of the +3DOS DOS DELETE routine are missing ...
    programandala.net programandala.net January 2015 Infoseek database
  • Cool program - buffer delayHere's something fun I wrote tonight thought I'd share. It's essentially a simple buffer delay. A building block for many things. https://www.drop…

    Here's something fun I wrote tonight thought I'd share. It's essentially a simple buffer delay. A building block for many things.

    https://www.dropbox.com/s/rk4q1xu2k2mkk62/BufferTest.z80
    ivanb303 ivanb303 November 2016 Sinclair Basic
  • off screen bufferwhen using an offscreen buffer is the memory copied to the screen in a way that makes it easier to draw sprites to the buffer? E.g. Lets say you…

    ... to draw sprites to the buffer?

    E. ... screen where you copy your buffer to,
    it is ...

    if the buffer was copied to the screen ... to draw sprites to the buffer, and then have them ... br /> draw background on buffer (or just clear it)
    slenkar slenkar June 2017 Development
  • Unexpected issue with +3DOS port of Pro BMX SimulatorI'm continuing to port my tape-based games to 3-inch disk (you may have noticed my previous post about PSSST!). Today I started on Pro BMX Simula…

    ... looks to me as if +3DOS is using the start of ...
    Georgeo Georgeo March 2018 Development
<1234567…34>

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Related Threads

  • MakeTZX DMA Buffer Overrun ?Okay folks,<br /> <br /> Does anyone know why I get DMA Buffer Overruns when using MakeTZX. Could it be anything to do with my SB Enironment string …
  • double buffer or not ? (dizzy games)What method did they used, to animate <br /> the objects in game ?<br /> I am still puzzled about this thing<br /> <br /> Catalin
  • Buffer AdventureQuite a few months ago, probably this year but well before the 60-day history kept on eBay, I was outbid on a copy of Buffer Adventure by someone who…
  • Return of Speccy screen buffer formatI recently discovered that the Spectrum screen buffer format that allows only two colours in an 8x8 pixel block has made its return in a slightly dif…
  • +3dos BASIC Headers - Char and Number ArraysHi.<br /> <br /> I'm almost ready to release the first beta of "3eExplorer" my utility for extracting files from a +3e HDD/CF image. It's actually g…
  • The ZX printer buffer in +3 modeI have a few programs on .DSK images that were transferred from Timex disks, but some of them have code starting at 23296. Most of the time the code …
  • Writing to the screen from a bufferI?m designing a game and am spending a bit of time trying different ideas before I commit my self. I?m currently thinking of writing data to a buffer…
  • Question on copying screen bufferHi,<br /> <br /> Al my prevoius games were copying graphics directly to screen memory starting at 16384. Now I'm experimenting with screen buffer whe…
  • What memory pages are being used in a +3DOS disk operation?To make a long story short: what pages are in use by +3DOS while doing read operations from the disk drive?<br /> <br /> Now, for the details, for th…
  • CPCDiskXP v2.1 Added support (Open/Create Dsk's, add/delete/rename files) for +3DOSCPCDiskXP v2.1 Changelog (since v2.0):<br /> [LIST]<br /> [*]DSKEditor - Added full support (Open/Create Dsk's, add/delete/rename files) for the foll…

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