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<1…16171819202122…34>
  • SCREEN$ 1.9e Released!And here's another update! [url]http://paul.dunn.googlepages.com/SCREEN_1.9e.rar[/url] There's a few new things in this release, but it's mostly bu…

    ... /> Config: Volume=3
    Config: Enabled=1
    Screen folder is ... : Dimension 2400
    BIOS: Phoenix ROM BIOS PLUS Version 1.10 ... -11CF-A2 DDraw Status: Enabled
    D3D Status: Enabled
    AGP Status ...
    zxbruno zxbruno May 2009 Sinclair Miscellaneous
  • ultimate microdrive cassette?just a thought.. would it be possible to make a special microdrive cassette that would work as adapter and take sd cards. you know, like those mp3 ad…

    ... , and interface directly to the IF1 connector. This would be somewhat ... moving parts and no essential ROM modifications. A job for a ...
    RST#08 RST#08 May 2009 Hardware
  • ultimate microdrive cassette?just a thought.. would it be possible to make a special microdrive cassette that would work as adapter and take sd cards. you know, like those mp3 ad…

    ... completely, and interface with IF1 directly via the mini- ... exotic permutations possible with the IF1/Microdrive/RS232.

    ROM disassembly, and also to the IF1 technical manual ... of 'real' operation; the 'IF1 direct' solution would require less ...
    RST#08 RST#08 May 2009 Hardware
  • DivIDE and Spectrum +2 (gray)DivIDE connected to my +2 always resets it in 48k mode. Some of the 128k games work but some don't. Is there a solution for it? My DivIDE has a Fatwa…

    ... DivIDE has a Fatware in ROM.

    Edit: I've ... , but 128kB memory paging is enabled. It's same as USR ...
    velesoft velesoft May 2009 Hardware
  • Spin problems/issuesI am running Spin 0.666 and have noticed a few issues (some are bugs, some might be just me). I am using Vista sp1 (yeah I know!), and I've seen Dunn…

    ... #3D00-#3DFF instructions form ZX rom:
    CPU jump to #3D00 ... -> debugger show ZX rom code, but I can't ... jumper JP2(writable divide rom) is open(enabled), then divide can be ...
    velesoft velesoft June 2009 Emulators
  • Reading from the 128 Serial PortDon't shout at me if this is a silly question. I have Googled extensively, and searched the forums, but I can't find anything discussing what seems t…

    ... than the one on the IF1. :o

    Still, the ... could be that the BASIC ROM routines are very inefficient, but ...
    trellis trellis June 2009 Sinclair Basic
  • Interface One - New FunctionalityAs you may (or may not) be aware the Interface One is a pretty powerful piece of kit. One of it's greatest features is being able to easily extended …

    The IF1 is not required for new ... Wearmouth in the Sea Change ROM (as you note). I could ... an IM2 routine and non-ROM channels to achieve the same ... main problem is that the ROM was unfinished and the channels ...
    chev chev July 2009 Development
  • Interface One - New FunctionalityAs you may (or may not) be aware the Interface One is a pretty powerful piece of kit. One of it's greatest features is being able to easily extended …

    ... a call in 48K Spectrum ROM
    jumpo DEFW = jump to ... the DEFW in 48K Spectrum ROM
    [/CODE]
    I enter ... therefore can't tell how IF1 catches an erratic Function keyword ...
    roko roko July 2009 Development
  • Interface One - New FunctionalityAs you may (or may not) be aware the Interface One is a pretty powerful piece of kit. One of it's greatest features is being able to easily extended …

    ... @DEEK function to Spectrum with IF1.
    The caveat is that ... )
    stackbc equ 2D2Bh ;16K ROM, stacks BC onto calculator
    let equ 2AFFh ;16K ROM, 'LET' statement handling routine
    cheat equ 1731h ;16K ROM code that does C
    RST#08 RST#08 July 2009 Development
  • Channels and streams - reading dataThe FAQ here - [url]http://www.worldofspectrum.org/faq/reference/48kreference.htm[/url] - seems to be just a touch inaccurate when it comes to readin…

    ... want to do exactly what IF1 does (I did this in ... by calling the BASIC ROM's ADD_CHAR routine (IF1 actually uses $0f85 ...
    glancaster glancaster July 2009 Development
  • Interface One - New FunctionalityAs you may (or may not) be aware the Interface One is a pretty powerful piece of kit. One of it's greatest features is being able to easily extended …

    ... /> [QUOTE] It seems that the IF1 line parser returns you to ... 's a shame that the IF1 programmers did not vector the ... to stick to using standard ROM routines, and basically play safe ... could be written. The 16K ROM code does all the difficult ...
    RST#08 RST#08 July 2009 Development
  • Interface One - New FunctionalityAs you may (or may not) be aware the Interface One is a pretty powerful piece of kit. One of it's greatest features is being able to easily extended …

    ... s a shame that the IF1 programmers did not vector ... the Spectrum with an unfinished ROM so Dr Ian Logan ... write a work-around shadow ROM in the first place. ... You don't need the IF1 for any of this stuff ... routine without using a shadow ROM. Just PUSH the address ...
    chev chev July 2009 Development
  • Interface One - New FunctionalityAs you may (or may not) be aware the Interface One is a pretty powerful piece of kit. One of it's greatest features is being able to easily extended …

    ... the Spectrum with an unfinished ROM so Dr Ian Logan had ... write a work-around shadow ROM in the first place.[/QUOTE ... Dr Ian the 'father' of IF1 hardware.
    When Dr Logan ...
    roko roko July 2009 Development
  • Interface One - New FunctionalityAs you may (or may not) be aware the Interface One is a pretty powerful piece of kit. One of it's greatest features is being able to easily extended …

    ... included in the original ROM (mostly in that area ... support truncated. The IF1 shadow ROM is a workaround for ... is replaced the original ROM. However they'd ... and the way the IF1 extends channels and streams ... br /> And what the BASIC ROM should have been:
    < ...
    chev chev July 2009 Development
  • Reading from the 128 Serial PortDon't shout at me if this is a silly question. I have Googled extensively, and searched the forums, but I can't find anything discussing what seems t…

    ... to Spectrum 128 RS232 (or IF1) can fail if the PC ... a byte, the Spectrum's ROM software attempts to stop further ...
    zxbruno zxbruno July 2009 Sinclair Basic
  • DivIDE QuestionHi all, I've been trying to work out how the DivIDE works and after reading and re-reading the DivIDE programming model document by Zilog I think it…

    ... can use the ROM function. Read the Shadow ROM disassembly to ... As I said, the Shadow ROM disassembly explains how this mechanism ... is very similar to the IF1 Shadow ROM method, varying only in ... pattern for calling ROM routines when the Spectranet ROM is paged ...
    Winston Winston August 2009 Development
  • The Goldfinch updates thread([url=http://www.worldofspectrum.org/forums/showthread.php?t=25034]original announcement thread here[/url] - I figured it was worth starting a new to…

    ... page out the whole Spectrum ROM, or none of it at ... making calls to the Speccy ROM and returning to the DivIDE ... ROM (so long as the DivIDE ... a page-out trap like IF1).
    Winston Winston September 2009 Development
  • The Goldfinch updates thread([url=http://www.worldofspectrum.org/forums/showthread.php?t=25034]original announcement thread here[/url] - I figured it was worth starting a new to…

    ... 1000x (bad hardware). Also 128rom (rom 0) contain from adress 0 ... wait loop from original ZX128 rom, you can use same:
    enabled only after reset/init IDE ... :

    - compatibility with 128 rom (autodetection) as on FATWARE 128 ...
    velesoft velesoft September 2009 Development
  • The Goldfinch updates thread([url=http://www.worldofspectrum.org/forums/showthread.php?t=25034]original announcement thread here[/url] - I figured it was worth starting a new to…

    ... complete going to the normal ROM interrupt address, or it could ... tells me whether interrupts were enabled or disabled, and what interrupt ...
    Winston Winston October 2009 Development
  • The Goldfinch updates thread([url=http://www.worldofspectrum.org/forums/showthread.php?t=25034]original announcement thread here[/url] - I figured it was worth starting a new to…

    ... . You can assume the BASIC ROM is selected and the standard ... can probably assume interrupts are enabled.
    chev chev October 2009 Development
  • Interface 1/Printer problemAre there any known incompatibilities between the Interface 1 and the standard ZX Printer? I've now had three working printers die on me. They were…

    I thought you needed an IF2 to plug in a ZX Printer. I thought the IF1 had a standard ZX edge connector rather than a ZX81 edge connector. The ROM in the IF1 is irrelevant as the printer routines are in the Spectrum ROM.
    chev chev October 2009 Hardware
  • Machine Code Microdrive File LoaderI've been experimenting with transferring games to run from microdrive. Typically I like to see a loading screen while things are happening, and I li…

    ... 's compatible with both [offical] rom issues - now weighing in at ... ; if de != 0700 then not if1
    ;
    ld hl,main2 ... /> rst $08 ; by using the if1
    defb $32 ; hook code ... to call any shadow rom address
    ret
    ;
    jp jp December 2009 Development
  • Sinclair ZXC3 FLASH ROM CartridgeI recently received mail about the new ZXC3 PCB which provides the unique ability to program it directly from the Spectrum without the need for an EP…

    ... I did was put an IF1 cart game on the flash ... memory, it's intended for ROM modules but someone can easily ...
    Winston Winston December 2009 Hardware
  • Announcing: The +2A/+3 FLASH ROM adapter boardAs I've mentioned in a couple of other threads, this project is coming along quite well now, so I thought I'd post some details up here. I've built …

    ... 128k +2a/+3 System Rom Flash Replacement Board Project.[/B ... prototype contained a W29EE011 FLASH ROM, providing two banks selected by ... enable signals.
    The FLASH rom cannot be programmed in circuit ... the FLASH IC so when enabled adds 0x10000 (dec 65536) ...
    guesser guesser December 2009 Hardware
  • Switching between +D and DivIDEI want to add a switch between +D and DivIDE. I think, soldering a switch between MEMRQ1 and MEMRQ2 + IOREQ1 and IOREQ2 of both Interfaces and Spectr…

    ... the switch, both interfaces are enabled. This is a feature I ... 227,128 Divide block internal rom in ZX. If mreq for ... crash (CPU will without any rom data). For correct fix: ROMCS ...
    velesoft velesoft January 2010 Hardware
  • Interface 1 Issue 2 Bug FixesI've had a bit of spare time today and implemented Geoff's [URL="http://www.drumfu.com/if1_2p.zip"]bug fixes[/URL] as detailed in his [URL="http://ww…

    ... I/F1 had an 8K ROM and it was practically ... it suddenly becomes a 16K ROM, but doesn't that ... cause compatibility issues with other ROM containing hardware?)[/QUOTE]
    < ... work well with a 16K ROM... that's something that ... entry points per version of IF1...
    jp jp January 2010 Development
  • Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …

    You should enable the correct ROM before making a call to ... shure that the ROM you started from is enabled after returning from ...
    roko roko April 2010 Hardware
  • Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …

    ... should enable the correct ROM before making a call ... that the ROM you started from is enabled after returning ... trying to test this rom switching on Fuse and ... ),A ; switch to 128K rom (rom 0)
    LD BC,4514 ... ),A ; back to 48K rom (rom 1)
    POP BC
    bverstee bverstee April 2010 Hardware
  • Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …

    ... different, but the correct rom is being selected by ... while switching ram banks / rom banks for the duration ... they need to be enabled while the routine is ... updated. Not sure about ROM page as i never ... .

    The rom IM1 interrupt, upon hitting an ...
    nuggetreggae nuggetreggae April 2010 Hardware
<1…16171819202122…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
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    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
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