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<1…17181920212223…34>
  • Disassemblers and RSTsI think this is a longshot, but... is anybody aware of a disassembler that handles the Interface One RSTs? e.g. RST $10 DEFW $0020. Cheers

    ... been able to patch some IF1 ROM calls...

    [CODE];
    ; Published version only suitable for IF1 Rom v1
    ;
    ; This version ... fixed to work with IF1 ROM v2 only
    ;
    ; Syntax ...
    jp jp April 2007 Development
  • Any interest in new low-cost mass-storage interface with 512K RAM?I've recently added support to ResiDOS and the +3e ROMs for SD/MMC card interfaces; in particular, ZXMMC (which has no onboard RAM and so is only sup…

    ... . It shows both a simple ROM selector running in the Flash ... ROM, and ResiDOS running in the ... />
    Additionally, details of the IF1 network and RS232 ports are ...
    glancaster glancaster April 2007 Hardware
  • +2b not working with interface1i was trying to transfer some of my programs from my microdrive carts onto tapes last night, but found both my 48k and my toast rack 128K have decide…

    ... a little circuit to disable IF1 until its in 48k mode ... via RST #08 in 48k ROM, it will be okay. If ...
    Sonic Sonic May 2007 Hardware
  • machine IDs for .z80 snapshotsHi, is there s.o. officially in charge for the .z80 file format? while upgrading zxsp's save_z80 routine i added new machine IDs for the Specci vari…

    ... br /> 1 48k + IF1 48k + IF1 16k issue 2
    ... 2
    4 128k + IF1 128k +2
    5 ... /> Also a custom rom for the TC2048 may ... 24K, or a custom rom for the +2A/+3 ... a +2A with custom rom ... if this was ...
    Kio Kio August 2007 Emulators
  • Multiple ROMsI'm mulling over the idea of a bit of hardware with a ROM in it, which has some commands that can be called by BASIC (like the old wafadrive star com…

    ... try to page its own ROM in (even when PC ... you want to use some IF1 ROM commands (eg for Microdrive ... temporarily disable the divIDE+ etc ROM, do that and then ... re-enable the ROM.

    So, if ... the same way as the IF1 and be totally compatible ...
    glancaster glancaster September 2007 Development
  • Microdrive wont LOAD - Help PleaseI have many Microdrive cartridges containing Original Programs and Backups. I have tried to read and load from any number of the cartridges all seem…

    ... then you have the first ROM (or a rare EPROM model ... to precisely determine (an official) IF1 ROM version?

    Thanks,
    Marcelo Marcelo September 2007 Hardware
  • Microdrive wont LOAD - Help PleaseI have many Microdrive cartridges containing Original Programs and Backups. I have tried to read and load from any number of the cartridges all seem…

    ... to precisely determine (an official) IF1 ROM version?

    Thanks,
    Geoff Geoff September 2007 Hardware
  • Bubble Bobble on SpinDoes anybody else find that Bubble Bobble has corrupted sprites (bubbles for example) in 48k or 48k+ mode in Spin? Works fine in any 128k machine mo…

    ... , I've been disassembling the ROM of the Mirage Microdriver, which ... from. Its interaction with the IF1 ROM is rather scary. :-o
    zub zub October 2007 Games
  • A vexatious questionThis is kind of a follow-up to a question about RST #8 and hardware that I wrote in the development forum a while ago. To summarize that: certain ha…

    ... a ROM in it needs to at least work with IF1 and ...
    Winston Winston October 2007 Hardware
  • A vexatious questionThis is kind of a follow-up to a question about RST #8 and hardware that I wrote in the development forum a while ago. To summarize that: certain ha…

    ... t know much about the IF1.
    However in the ... at which precise point the IF1 pages in.

    ... data taken from the DivIDE ROM. I think :)

    ... ]guess[/I] if the IF1 pages in before that, then ... would be the "active" ROM and page itself over the ...
    icabod icabod October 2007 Hardware
  • A vexatious questionThis is kind of a follow-up to a question about RST #8 and hardware that I wrote in the development forum a while ago. To summarize that: certain ha…

    ... I can prevent the IF1 ROM from paging in by holding ... although I can stop its ROM from being paged in, ... the IF1 page-in latch is set, whammo, its ROM gets ... However, this makes the ROM programming on my hardware very ... (like the DivIDE and IF1) and have a hardware ...
    Winston Winston October 2007 Hardware
  • SAM gets ethernetWhilst off topic - head over to [url]www.samcoupe.com[/url]. Colins got his ethernet board for the SAM available to buy and some interesting news ab…

    ... 8K pages, and any page (ROM, RAM, W5100 buffer) should be ... mappable (so you can have ROM in 0x0000-0x1FFF, W5100 in ... , or RAM in 0x0000-0x1FFF, ROM in 0x2000-2FFF) for greatest ... counter addresses the DivIDE (or IF1) intercepts, so should be always ...
    Winston Winston October 2007 Hardware
  • Your help needed![FONT=Arial]there are [URL="http://www.worldofspectrum.org/neededscreens.html"]a number of titles[/URL] (146) that still lack an in-game scre…

    ... variants of the Interface One ROM. Some microdrive software will only ... work with certain versions of ROM. IIRC Spin only emulates the ... second issue of ROM, and I have encountered some ... official issues, and other customised IF1 ROMs.
    jp jp October 2007 Games
  • Your help needed![FONT=Arial]there are [URL="http://www.worldofspectrum.org/neededscreens.html"]a number of titles[/URL] (146) that still lack an in-game scre…

    ... variants of the Interface One ROM. Some microdrive software will only ... work with certain versions of ROM. IIRC Spin only emulates ... the second issue of ROM, and I have encountered ... official issues, and other customised IF1 ROMs.[/QUOTE]

    ...
    Digital Prawn Digital Prawn October 2007 Games
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... IF1 connected ? is that right?)

    Actually, the ROM ...
    [LIST]
    [*]The Spectrum ROM? ? nope, $3800 is in the ... .
    [*]Something IF1 related? ? no, the IF1 ROM only uses $0000-$ ... /> [*]The Microdriver's ROM? ? the ROM dump I have isn't ...
    zub zub November 2007 Hardware
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... how I can dump this rom without having any chip ... be impossible to dump the ROM without chip reading equipment.
    ROM and 2K RAM, so the ... incomplete ROM dump is almost certainly the ... 't start properly if the IF1 is not attached ? I' ...
    zub zub November 2007 Hardware
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... able to guarantee that the IF1 ROM wasn't already paged in ...
    Winston Winston November 2007 Hardware
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... to guarantee that the IF1 ROM wasn't already paged ... is determining whether the IF1 was paged in, and ... out the IF1 ROM so that the Spectrum ROM can be ... standby state. The Microdriver ROM is actually paged out ... space, though. There's ROM from $0000-$0FFF, RAM ...
    zub zub November 2007 Hardware
  • Small ROMs updateI've finally got around to updating my [url=http://www.shadowmagic.org.uk/cgi-bin/spectrum/roms.pl]ROMs page[/url] with some of the ROMs I've "recent…

    ... clones.
    HC-90 ROM is identical to the Spectrum ... ROM, except the copyright message, ... extra code in the BASIC ROM to boot CP/M, ... Also, they have a modified IF1 ROM that drives a floppy disk ... that has the same 48K ROM as HC-91. I ...
    0sAND1s 0sAND1s November 2007 Hardware
  • The direct bus or indirect one... that is the questionThe Ethernet project continues...and I'm in a quandry. So I've managed to implement enough socket library for the W5100 that socket, bind, listen, a…

    ... also means hardware with incompatible shadow ROMs can still use OUT ... the eventual ethernet board's ROM and RAM, and then only ...
    lordcoxis lordcoxis November 2007 Hardware
  • Fuse 0.9.0 releasedVersion 0.9.0 of [url=http://fuse-emulator.sourceforge.net/]Fuse[/url], the Free Unix Spectrum Emulator[/url] has just been released. Highlights of t…

    ... that determines if the IF1 is the first version ... second, with a corrected ROM. The result for fuse ... with the default ROM is first version. This ...
    VERS1 DEFB 'ANTIGUA ROM'
    DEFB 0
    VERS2 ... DEFB 'NUEVA ROM'
    DEFB 0
    ...
    NotFound NotFound January 2008 Emulators
  • SupadriveHere's an MDR image of Supadrive. Works with Spectaculator, but I haven't tested it with any other emulators. [url="http://www.superfudge.demon.co.u…

    ... depending on the version of IF1 rom in use, different cartridges will ...
    jp jp January 2008 MIA/STP/SDP
  • Various kit for saleListed a big collection of hardware - sadly no R@RE Make A Chips though: Lightguns Kempston Centronics Interface QL / Spectrum 128 Serial printer ca…

    Do you know which ROM issue the IF1 is?
    If it's the fabled 3rd issue, then that really would be R@RE ;)
    jp jp January 2008 Sales
  • Game EditorsWell as the title says, this is a query about game editors, specifically the ones for Gremlin games... Many moons ago, Your Sinclair published (I th…

    ... checksum the fitted issue of IF1 rom.
    This checksum ... in which the emulator handles IF1 support :(

    ... IF1 hook code table resides. On an Issue 1 ROM ... $1981, and an Issue 2 ROM at $1e71.

    IF1 emulation.
    This ...
    jp jp January 2008 Games
  • Bizarre stuff in Interface 1's shadow ROMAccording to the Complete Shadow ROM disassembly, the function that exits back to the BASIC interpreter after interpreting IF1 commands is this: [co…

    ... (discovered I had the ROM if1.rom with RealSpectrum that's still ...
    Quazar Quazar March 2008 Development
  • Spectrum Ethernet update...in which a toastrack 128K machine prods a machine outside of my LAN for the first time. [url]http://spectrum.alioth.net/doc/index.php/Current_eve…

    ... :-) I've been using the IF1 disassembly to get some clue ... subsequent return to the main ROM, such that it works ... in compatibility with other paged rom devices, specifically mass storage.
    IF1 and microdrive, since people are ...
    Winston Winston March 2008 Hardware
  • Spectrum Ethernet update...in which a toastrack 128K machine prods a machine outside of my LAN for the first time. [url]http://spectrum.alioth.net/doc/index.php/Current_eve…

    ... 've been using the IF1 disassembly to get some ... method is based on the IF1 method).

    ... yourself (see the IF1 disassembly for how to ... ($1bf4) in the BASIC ROM. Job done.
    [*] ... BASIC_STMT_R_1 ($1b7d) in the BASIC ROM. Finished!
    [/LIST]
    glancaster glancaster March 2008 Hardware
  • Memory paging in 128 KB - 64KB RAM possible?I have found a quote in Spectrum 3 manual (available at WOS) -------------------- In the +3, we have crammed in more than twice the amount of memory…

    ... run BASIC with a modified ROM image. Some programs don't ... like the +3's 48BASIC ROM, but will work with an ... of the original Sinclair 48k ROM.
    - You can load programs ... />
    And you can run 'Shadow of the Unicorn'. :)
    zxbruno zxbruno March 2008 Development
  • Interface 1 emulation issuesFor Virtual Spectrum v3.0 I am implementing virtual Interface 1 and Interface 2 options! The I/F2 ROM option works already, and I have got the I/F1 s…

    ... /test with Spectaculator as the IF1 [rom 1/2/etc] emulation really ...
    jp jp April 2008 Emulators
<1…17181920212223…34>

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