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  • Disable interrupts?Well, I've read the bits from the David Webb book about interrupt modes and (vaguely) appreciate the principles behind having a vector table, after r…

    ... the David Webb book about interrupt modes and (vaguely) appreciate the ...
    Morkin Morkin February 2012 Development
  • ANN: Tipshop updated Wednesday, 29 February 2012Wednesday 29 February 2012 Loads of maps this leap-year month! * Pavel Pl?va sent in POKEs for Gloop Troops: The Lost Crown. * Bad Beard sent in P…

    ... teS teJ.

    * Added RZX Archive links for Alpine Games ...
    hackersanon hackersanon February 2012 Announcements
  • old PC with Monocrome Monitor Out.So as discussed in the Carboot sale thread, I have brought and old Apricot Xi. It takes a monochrome monitor via a 9 pin D connector. Now I don't ha…

    ... 0v
    4 horizontal sync
    5 vertical sync
    6 frame ... tech manual:

    "Both sync signals are at standard positive ... frequency
    of the Horizontal Sync pulses to match the standard ... the frequency of the Vertical Sync Pulses, 72 Hz. The
    Scottie_uk Scottie_uk March 2012 Chit chat
  • Luna Atac bug?Someone is trying to RZX this game, but when they get to the end to enter the password, choosing any letter kills them. Is this a Jet Set Willy styl…

    Someone is trying to RZX this game, but when they ...
    Daren Daren March 2012 Games
  • Multicolour demo using z88dk + BIFROST* (+source)This is just a demo to show how to show multicolour using z88dk, using the BIFROST* engine (more info [URL="http://www.worldofspectrum.org/forums/sho…

    This is just a demo to show how to show multicolour using z88dk, using the BIFROST* engine (more info [URL="http://www.worldofspectrum.org/forums/showthread.php?p=608777"]here[/URL]).

    [IMG]http://www.image-share.com/upload/1337/164.png[/IMG]< ...
    Timmy Timmy March 2012 Development
  • ZXodus II previewAlthough ZXodus II is still under development, the author Andrew Owen authorized me to make this "preview version" available for anyone interested on…

    ... music
    [*]BEEP effects
    [*]Interrupt manager (supports defining additional interrupts ...
    Einar Saukas Einar Saukas March 2012 Announcements
  • Clocks go Forward UK?All morning I forgot that the clocks should have gone forward. I was wondering why my PC was out of sync with my wall clock. :oops:

    All morning I forgot that the clocks should have gone forward. I was wondering why my PC was out of sync with my wall clock. :oops:
    Scottie_uk Scottie_uk March 2012 Chit chat
  • Interrupting emulation if Multiface isn't availableA few years ago I asked about how to exit to BASIC when the BASIC environment is still available and stable. Now I have a similar question... Certai…

    ... unavailable. If I want to interrupt emulation and return to BASIC ...
    zxbruno zxbruno March 2012 Emulators
  • ANN: Tipshop updated Saturday 31 March 2012Saturday 31 March 2012 Loads of maps and RZX Archive entries this month - and it nearly made it on time, too! * Archie Robins sent in POKEs for Foo…

    ...
    Loads of maps and RZX Archive entries this month - and ... Bug Slayer.

    * Added RZX Archive links for
    1999 ...
    hackersanon hackersanon April 2012 Announcements
  • countdown timer ?just curious if there was a pre-made one about that I could use to count down from 999 to 0. in MC / under interrupt, that returns to basic? but how…

    ... to 0. in MC / under interrupt, that returns to basic?
    fog fog April 2012 Sinclair Basic
  • Would this work for Scart blanking in +3?I was looking at RGB to Scart cable solutions over at CPCWiki. Theres [URL="http://www.cpcwiki.eu/index.php/TV_SCART_cable#Alternative_RGB_Wiring"]o…

    ... "]one[/URL] that takes the sync signal (pin 4) from Amstrad ... />
    In +3, the composite sync is feeding the composite pin ... blanking pin to supply the sync signal one-way and add ...
    protek protek April 2012 Hardware
  • ANN: Tipshop updated Monday, 23 April 2012Monday 23 April 2012 Happy 30th Anniversary to the ZX Spectrum!!!!!! This month's update is a bit earlier (yes, you read that correctly) than usual…

    ... Zodiac Strip.

    * Added RZX Archive links for Antiquity Jones ...
    hackersanon hackersanon April 2012 Announcements
  • ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…

    ... , write, close, opendir, readdir, seek, sync, fstat, getcwd, chdir, unlink...
    phoenix^ra phoenix^ra April 2012 Announcements
  • Byte-order backbufferThis is a tool for Z80 coders who wish the Spectrum screen had a serial layout. It runs as an interrupt mode 2 service routine and uses POP and PUSH …

    ... .
    It runs as an interrupt mode 2 service routine and ... /> jp 56 ; exit via BASIC interrupt handler

    blit: ; subroutine ... /> jp im_main ; jump to main interrupt handler

    org 0xfff7 ...
    chev chev April 2012 Development
  • Spectrum +3 into a Microvitec CUB 452 MonitorSo nearly had this working! Had a lead made up for me that should have worked but the wiring was a bit off, after a bit of messing around and search…

    ... and blue, trouble is the sync is off and its scrolling ...
    Macc Macc May 2012 Hardware
  • Sound designer wantedAs you may or may not be aware, in a complete IP violation, and written up as a HOW-TO tutorial, I'm writing a pac-man clone. But I'm crap with soun…

    ... /> Short enough sound to not interrupt the game (except for intro ...
    Gedlion Gedlion May 2012 Development
  • yeah x 0.0.2first: [URL="http://www.yeah-unix.org/downloads/yeah_0.0.2.tar.gz"]the goods are at - http://www.yeah-unix.org/downloads/yeah_0.0.2.tar.gz[/URL] aft…

    ... NMI),
    - timer management (50Hz interrupt hooks and chaining, mostly used ...
    tstih tstih May 2012 Development
  • ANN: Tipshop updated Thursday, 31 May 2012Thursday 31 May 2012 Some very interesting POKEs this month * Hippy Smith sent in HUGE(!) POKEs for Echelon, Hive, Infiltrator, Sentinel, The and V…

    ...
    Xor.

    * Added RZX Archive links for Barmy Burgers ...
    hackersanon hackersanon May 2012 Announcements
  • Ferguson MA20 via SCART to modern TVHello, I am a newbie here but I visit this forum on regular basis to find interesting informations about computers of my life - Speccies. I have a s…

    ... />
    3) How about "inverted sync" signal mentioned at this page ... this is negative or positive sync ?
    If my plasma TV ... ]http://www.twobits.com/RGB/sync.html[/url]

    I ...
    ikci ikci June 2012 Hardware
  • Between interrupts and handlersSee there's this short period of time immediately after an interrupt comes but [i]before[/i] the control is transferred to an interrupt handler, abou…

    ... of time immediately after an interrupt comes but [i]before[/i ... control is transferred to an interrupt handler, about 17-19 T ...
    Hikaru Hikaru June 2012 Development
  • Jelly-Vision!As threatened in the "'Spectrum Play' Error" thread, here's a ruff'n'reddy interrupt driven full screen wobbling routine which has no practical use w…

    ... 's a ruff'n'reddy interrupt driven full screen wobbling routine ...
    Battle Bunny Battle Bunny June 2012 Sinclair Basic
  • Simple explanation of interrupts (in the context of Z80/Speccy)I wondered if somebody on here could explain in simple terms how interrupts work on the Speccy and where interrupts are source from. Are they a natur…

    ... -frame, can you schedule an interrupt or trigger one manually? Are ... own handler, or does each interrupt go through a list (or ...
    takapa takapa June 2012 Development
  • Chimera sequelHello Martijn At the end of the Chimera RZX(Thanks Darren!),it says that the series will be continued in "Mission Pandora".Can this be added to the …

    Hello Martijn

    At the end of the Chimera RZX(Thanks Darren!),it says that the series will be continued in "Mission Pandora".Can this be added to the Chimera entry?.Thanks.

    Colin
    ladderman ladderman July 2012 Infoseek database
  • 64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…

    ... feasible is this? Could an interrupt-driven routine be used to ...
    na_th_an na_th_an July 2012 Development
  • Low level microdrive programmingSo I'm on my lunch break trying to find out about low level microdrive programming (without using IF1 ROM). I see one can use port 0xe7 to read and w…

    ... port 0xef:
    - GAP,
    - SYNC,
    - WR_PROT,
    - ERASE,
    tstih tstih July 2012 Development
  • BIFROST* Advanced Programming - part 1In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. …

    In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. Even so, sometimes experienced developers may decide to access BIFROST* internal routines directly, for ...
    Einar Saukas Einar Saukas July 2012 Development
  • Spy Hunter - IssuesI have been playing this good old game from US Gold, and found myself with some questions... I have realized that in the rzx. files, the helicopter …

    ... have realized that in the rzx. files, the helicopter always appears ... />
    Also, there are 2 rzx. files, and in one of ...
    Ivanzx Ivanzx July 2012 Games
  • BIFROST* Advanced Programming - part 3This new demo demonstrates the BIFROST* built-in sprite support that I mentioned before. In BIFROST*, "sprite tiles" are 2 special tiles that BIFROS…

    ... = -dcolEnemy;
    }

    // frame sync
    asm("halt");

    // frame sync
    asm("halt");
    }
    Einar Saukas Einar Saukas July 2012 Development
<1…19202122232425…34>

Latest Posts

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    mel the bell on April 21
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