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  • Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…

    ... of it forms the frame buffer, and some of it is ... variables.

    The frame buffer uses just under 7K (32 ...
    Winston Winston March 2007 Hardware
  • Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…

    ... display colour
    23296 - ?? Printer buffer
    ?? - ?? System memvars
    ?? - 65535 ...
    MrCheese MrCheese March 2007 Hardware
  • Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…

    ... ;176954]There is a 256K buffer for the printer[/quote]
    256[B]K[/B] printer buffer in a 16-48[B ...
    zx128k zx128k March 2007 Hardware
  • Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…

    ... ]CAN[/B] use the Printer Buffer and System Variables area, they ...
    rich_chandler rich_chandler March 2007 Hardware
  • External Speccy CommunicationHow does a speccy communicate with the outside world ?? Do you have to have the interface 1 for serial communications ( rs232 ) or are there other p…

    ... an 8K dual ported SRAM buffer, checksum calculation in hardware suitable ...
    Winston Winston March 2007 Hardware
  • Getting scr addresses from x and yCould someone please tell me how to calculate the 8 screen addresses corresponding to a character printed in basic at coordinates x and y? For examp…

    ... if you wish) to a buffer (12 bytes per function) - if ...
    BloodBaz BloodBaz March 2007 Sinclair Basic
  • My emulator doesn't take "commands"Hi This is probably a question that is very hard to answer, but perhaps some of you have/had the same problem. In my own emulator (that I have built)…

    ... also have troubles with RLD, LDI, LDIR, everything works exept for ...
    Jmc Jmc March 2007 Emulators
  • My emulator doesn't take "commands"Hi This is probably a question that is very hard to answer, but perhaps some of you have/had the same problem. In my own emulator (that I have built)…

    ... also have troubles with RLD, LDI, LDIR, everything works exept for ...
    Philip Kendall Philip Kendall March 2007 Emulators
  • 1982 speccy gaming pioneersThe games that helped get the Spectrum noticed are about to be 25 years old. Which is the best game from 1982? A list of the 30 with the highest rati…

    How on earth did Tobor, one of the most crap games of all time, manage to score 5.33??? :o Buffer Micro of Streatham used to stock just one copy, so that if anyone came in asking for it, they could load it up and demonstrate how crap it was... :D
    robert@fm robert@fm March 2007 Games
  • spectaculator 6.30 errorWhen I enable "load from audio source" Im getting a little yellow warning triangle in the status bar. When I click on that for the error it reports: …

    ... ,100kHz, 8-bit cyclic capture buffer
    if( SUCCEEDED( hr ))
    Jon Needle Jon Needle March 2007 Emulators
  • SpecEmu 2.4 releaseSince SpecEmu has been at 2.4 beta for as long as I can remember I think it's about time I made a proper 2.4 release for its users :) Major new feat…

    ... not Create the Primary Sound Buffer. Again Spin ran with sound ...
    FrankT FrankT March 2007 Emulators
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... in using a second display buffer as background. The example program ...
    Alcoholics Anonymous Alcoholics Anonymous March 2007 Development
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... main thing to note is LDI only takes 16 cycles ... /> ld bc,0
    ldi x 32
    ex de ... and by eliminating the last LDI and replacing it with a ... br />
    push de
    ldi x 32
    pop de ... deal in counting lines). LDI sets the P/V flag ...
    Alcoholics Anonymous Alcoholics Anonymous April 2007 Development
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... first byte of the printer buffer is set to 15.
    Geoff Geoff April 2007 Development
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... first byte of the printer buffer is set to 15.[/QUOTE ...
    icabod icabod April 2007 Development
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... first byte of the printer buffer is set to 15.[/quote ...
    rich_chandler rich_chandler April 2007 Development
  • bubble trouble 16k?Hi, i download this game from [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0000729[/url] and run under emuZwin. i think its not 16k game :…

    Sorry guys -- it's not a 16k game. Program size is 7k, screen is 6k, it uses a 4k back buffer, which adds up to 17k at least!
    Alcoholics Anonymous Alcoholics Anonymous April 2007 Games
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... of new attr value
    LDI move attribute from table to ...
    omega omega April 2007 Development
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... of new attr value
    LDI move attribute from table to ...
    bobs bobs April 2007 Development
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ...
    LD L,A
    LDI

    [/code]

    INC IX
    LDI
    JP PE,LOOP
    LD L,A
    LDI
    ... etc.
    [/code]
    omega omega April 2007 Development
  • Need advice choosing one of these optionsA few spanish friends are willing to help me build and program the ethernet interface for the Speccy. Here are the possibilities. Any advice would be…

    ... ENC29J60, which has an 8K buffer and can calculate things like ...
    Winston Winston April 2007 Hardware
  • Game Programming Source Code & Startup HelpHi there, I'm planning on porting an existing commercial title to the speccy. I'm in the process of disassembling the original code and commenting i…

    ... any order in a back buffer. And keep in mind, with ...
    Alcoholics Anonymous Alcoholics Anonymous April 2007 Development
  • Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…

    ... fast as possible. The back buffer was cleared with the stack ...
    obo obo April 2007 Games
  • Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…

    ... fast as possible. The back buffer was cleared with the stack ...
    rich_chandler rich_chandler April 2007 Games
  • Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…

    ... fast as possible. The back buffer was cleared with the stack ...
    zxspecticle zxspecticle April 2007 Games
  • Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…

    ... fast as possible. The back buffer was cleared with the stack ...
    ChuckieEgg ChuckieEgg April 2007 Games
  • Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…

    ... am using the attribute control buffer similar to Manic Miner (only ...
    BloodBaz BloodBaz April 2007 Games
  • Reason for strange display layout?I have always wondered if there is any technical reason behind the strange layout of the display file or why did Sinclair choose to do it this way?

    ... graphics into the frame buffer. If the frame buffer was a simple ... shoudl be in the frame buffer.
    Winston Winston April 2007 Development
  • Reason for strange display layout?I have always wondered if there is any technical reason behind the strange layout of the display file or why did Sinclair choose to do it this way?

    ... , the BBC Micro's frame buffer (for 1 bit per pixel ... build a simple LCD frame buffer for it, and the contention ...
    Winston Winston April 2007 Development
  • Reason for strange display layout?I have always wondered if there is any technical reason behind the strange layout of the display file or why did Sinclair choose to do it this way?

    ... had simply made the frame buffer a 'raster' image in memory ... was to optimize the frame buffer so that software could make ... BBC Micro made the frame buffer easy for the CPU to ...
    Winston Winston April 2007 Development
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