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  • OpenSE Software CompatibilityWith the earlier Open82 project a page was set up on Wikia ([url]http://scratchpad.wikia.com/wiki/Open82[/url]) with compatibility information on var…

    ... additional compatibility that can be enabled.[/QUOTE]

    Ok, I ... 'll create a compatibility ROM-0 then and add it ...
    chev chev June 2011 Sinclair Basic
  • Shadow ROM partial decoding not implemented in emulatorsOr at least, not implemented in Spectaculator, and it seems that not in Fuse too. [URL="http://www.speccy.org/foro/viewtopic.php?f=8&t=408&start=53"…

    ... of the ROM contents, so unless there are different IF1 PCB's ... and/or IF1 ULA versions with ... , it counts for all shadow ROM versions.
    mcleod_ideafix mcleod_ideafix June 2011 Emulators
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... emulation, then if interrupts are enabled you need to execute them ...
    ccowley ccowley June 2011 Emulators
  • Fuse: what do you want to see?An open brainstorm. If you had a team of programmers working on [url=http://fuse-emulator.sf.net/]Fuse[/url], what would you tell them to work on? …

    ... />
    * 48.rom - Original 48K ROM
    * 128-0.rom - 128K ROM 0 (128K ... .rom - Spanish 128K ROM 1 (48K BASIC)
    * if1-2.rom - Interface 1 v2 ROM ...
    * plus2-0.rom - +2 ROM 0 ...
    Diondeville Diondeville July 2011 Emulators
  • Most colourful games?I just played [url=http://www.worldofspectrum.org/infoseekid.cgi?id=0001563]Earth Shaker[/url] and am fairly dazzled by the overload use of colour (t…

    ... priority than the charset to enabled the isometric blocks to occlude ... (shoved up under the Kernel ROM at $e000 onwards). The sprite ...
    TMR TMR August 2011 Games
  • Setting the border/paper/ink colours problem[deleted]

    ... /> If the spectrum has an IF1 attached or some other device ... it's not the 48K ROM that is running, then 23760 ...
    Alcoholics Anonymous Alcoholics Anonymous August 2011 Development
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... that it lands somewhere in ROM - that would explain why a ... is 1, so interrupts are enabled, that's why pressing enter ...
    PeterP PeterP August 2011 Emulators
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... that it lands somewhere in ROM - that would explain why a ... is 1, so interrupts are enabled, that's why pressing enter ...
    Arjun Arjun August 2011 Emulators
  • ZX80 and 81 hardware questionsI'm finding a lot of the documentation that is ostensibly about the hardware of the ZX80 and 81 to be primarily about the software. I was hoping some…

    ... up with nothing from the ROM and instead get whatever ... sounds most probable that when enabled NMIs are triggered by horizontal ... ZX81 ROM shows that interrupts are disabled (or, rather, not re-enabled ... ) when the NMI generator is enabled. So I ...
    Thommy Thommy September 2011 Hardware
  • Spectrum / PC Serial Networking (on 128k, +2's etc)Hello there my fellow WoS'ers I have been looking around getting some system readyfor replay, and in one of these stints I notices a PC (RS232) Seri…

    ... for 48+IF1 few months ago. The issue with original ROM code ... why most 19k transfers using ROM code fail on ZX (or ...
    tstih tstih October 2011 Hardware
  • Spectrum / PC Serial Networking (on 128k, +2's etc)Hello there my fellow WoS'ers I have been looking around getting some system readyfor replay, and in one of these stints I notices a PC (RS232) Seri…

    ... library does include the spectrum, if1 and +3.[/QUOTE]

    ROM routines. And that is [I ... . Plus the top size for ROM routines is 19.200 and ... to 115.200 on 48 + if1 (and quite comfortable 57.600 ...
    tstih tstih October 2011 Hardware
  • Pac-Man EmulatorMy Pac-Man Emulator for the Spectrum +2A/+3 is now available for download from: [url]http://simonowen.com/spectrum/pacemuzx/[/url] You'll need to su…

    ... lower addresses normally occupied by ROM,[/quote]
    It's not ... detects whether Spectranet traps are enabled, and asks the user to ...
    obo obo November 2011 Brand new software
  • Creating a new game - AssemblySo... finally I?m studying Assembly Z80... after 36 years. :) Well... it?s sooooooooooooo hard to make a game using Assembly? I bought a book (Spectr…

    ... 's worse than that... The ROM interrupt handler uses IY, so ... the value when interrupts are enabled it'll probably scribble on ...
    obo obo January 2012 Development
  • Creating a new game - AssemblySo... finally I?m studying Assembly Z80... after 36 years. :) Well... it?s sooooooooooooo hard to make a game using Assembly? I bought a book (Spectr…

    ... 's worse than that... The ROM interrupt handler uses IY, so ... the value when interrupts are enabled it'll probably scribble on ...
    rich_chandler rich_chandler January 2012 Development
  • Kobrahsoft: Code InvestigatorHi folks, While digging around my HD I found an "Unknown Kobrahsoft Tape" which appears to contain the MIA title Code Invesitgator by Kobrahsoft: [u…

    ... not being scanned...)
    I enabled the interrupts, and pressed a ... disabled.
    I once again enabled interrupts (the border changes colour ... counts the bytes of a ROM-timed file.
    lfaria lfaria February 2012 MIA/STP/SDP
  • MB02 picsI got an original MB02 from someone to fix, and of course I made some pics to share (click for magnification): [URL="http://benophetinternet.nl/hobb…

    ... thus the ZX Spectrum ROM will be enabled all the time.
    ROM) can only be low when ... .

    If the MB02 ROM is never paged in, none ...
    bverstee bverstee February 2012 Hardware
  • Broken Multiface 3, can it be fixed?Hi Dusted off my old Multiface 3 and unfortunately it doesn't work. With it plugged in the computer just shows a garbled screen of coloured blocks t…

    ... uiversal programmer for chips like ROM, GAL, PAL or other programmable ... ram chip might still be enabled because there is no input ...
    bverstee bverstee March 2012 Hardware
  • ROM switch on NMIHello! Please, help me or point in the right direction. I am building a project for 48k spectrum which must activate its rom (actually static ram) …

    ... " was a programmable device that enabled you to introduce POKEs in ... version of the software, later enabled screenshot saving and snapshot saving ... paged its own RAM into ROM, waited to NMI to happen ... was published a modification that enabled it to work in +2A ...
    Zup Zup April 2012 Hardware
  • Bubble Bobble BUGS !Is it a known fact about the bugs in Bubble Bobble when you put the music on? When I had this game years ago I worked out that typing ON before the t…

    ... know if the routine uses ROM detection alone or a combination ... the AY to always be enabled.
    chev chev April 2012 Games
  • Internal ROM expansionHas anybody designed a multiple-ROM interface that plugs into the internal ROM socket instead of plugging onto the edge connector? It would be useful…

    ... programs (like Omnicalc) expect the IF1 variables to be allocated. On ... this MAX is talking with IF1, you might try to adapt ... second table with the appropriate ROM routine:

    [CODE] ... $9c22 to call the appropriate ROM routine for the fitted Interface ...
    jp jp May 2012 Hardware
  • Spectrum30 Show in Cambridge, 08th-09th September 2012Hello Spectrum-fans, after many months of preparation we now proudly present what will be the biggest Spectrum venue of the last 20 years. We manage…

    ... periphials (divIDE Plus, divIDE, ZXC3, IF1/IF2/Multifaces/ZXPrinter, microdrives, and ... fairly rare. I exracted teh ROM a few years ago and ... with fruitcake to get the ROM working in a ZXC3.
    BloodBaz BloodBaz May 2012 Sinclair Miscellaneous
  • Spectrum30 Show in Cambridge, 08th-09th September 2012Hello Spectrum-fans, after many months of preparation we now proudly present what will be the biggest Spectrum venue of the last 20 years. We manage…

    ... periphials (divIDE Plus, divIDE, ZXC3, IF1/IF2/Multifaces/ZXPrinter, microdrives, and ... fairly rare. I exracted teh ROM a few years ago and ... with fruitcake to get the ROM working in a ZXC3.[/QUOTE ...
    Speccyman Speccyman May 2012 Sinclair Miscellaneous
  • Would things of been better if the NMI was fixed ?I was just wondering, if the NMI bug was fixed say early on in production, so for instance all issue twos (and late issue ones) and beyond had the "f…

    ... do not know what the IF1/Microdrive protocol and hardware was ... to be, nor how the IF1 paging and/or interface would ... MDV firmware, despite a 'finished' ROM that included network/RS232 support ... have fitted into the 16K ROM without some pretty sophisticated ...
    RST#08 RST#08 May 2012 Hardware
  • 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…

    ... mode 1 (IM 1) is enabled (it is by default), a ... />
    When IM 2 is enabled, the address to call to ... . With the standard non-patched ROM (48K machines), the NMI routine ... access page in their own ROM that offers a suitable NMI ...
    mcleod_ideafix mcleod_ideafix June 2012 Development
  • 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…

    ... mode 1 (IM 1) is enabled (it is by default), a ... />
    When IM 2 is enabled, the address to call to ... . With the standard non-patched ROM (48K machines), the NMI routine ... access page in their own ROM that offers a suitable NMI ...
    takapa takapa June 2012 Development
  • Connecting HDF to Emulator with divIDE supportHi Guys, I'm using ESXDOS 0.8.0 on a divIDE 57c but I want to set it up on an emulator. I've created an HDF of my CF card but I'm struggling with i…

    ... > Options > Hardware > ROM Images > DivIDE Firmware > ... Disks > Tick "Unit 0 Enabled" and select my [b]CF01 ... I have no hard disks enabled (Tools > Options > Files ...
    BloodBaz BloodBaz June 2012 Emulators
  • If The Spectrum Never Existed...Out of curiosity... Just say the Spectrum was never made, what computer would you have opted for as an alternative back in the early-mid 80s? BBC M…

    ... since learnt to a buggy ROM) and if they did then ... one friend had written that enabled you to draw on the ...
    napoleonblownaparte napoleonblownaparte June 2012 Games
  • ZX Spectrum +2A 128K Peripheral CompatabilityHey guys, Are the ZX interface devices and microdrives compatible with the +2A machine? Col.

    ... used by the IF1 to page in the shadow ROM, and by ... IF2 to page in the ROM cart. The +3/+2A and ... lines to page in its ROM.
    chev chev June 2012 Hardware
  • How to stop the +3 disk motorHi Folks. I was reading this thread [url]http://www.worldofspectrum.org/forums/showthread.php?t=32069[/url] and in post #17, Macc mentioned that the…

    ... =aowen;634736]If IM1 is enabled in the program the motor ... ]

    Here's the ROM-3 code to prove it ...
    The_Bert The_Bert June 2012 Sinclair Basic
  • Known Z80 M1 problems?I got an email yesterday from someone asking for a Z80 without the M1 problem. I only know about the fanout problem that many Z80's are suffering of…

    ... many machines to replace the ROM. They wouldn't have decided ... 'd given up selling the IF1. They probably just bought the ...
    chev chev June 2012 Hardware
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Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
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    Renegade on April 21
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    John Elliott on April 21
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