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<1234567…34>
  • 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…

    According to the Complete Shadow ROM disassembly, the function that exits ... ,+1BF4 Return address to main ROM is
    05CC RST 18 ...
    Winston Winston March 2008 Development
  • 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 memory, where the shadow ROM resides, show that the ... jump to 0700h in the shadow ROM. This location contains a ... the hardware automatically unpages the shadow ROM. As the RET instruction ... Interface 1 partially decodes the shadow ROM and therefore, the last ...
    mcleod_ideafix mcleod_ideafix June 2011 Emulators
  • Wanted - Spectrum Shadow ROM DisassemblyHiya, if you've got a hard copy of [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=2000371&loadpics=1"]Spectrum Shadow ROM Disassembly[/URL] t…

    Hiya, if you've got a hard copy of [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=2000371&loadpics=1"]Spectrum Shadow ROM Disassembly[/URL] that you're willing to part with then please send me a PM. Thanks!
    jp jp March 2013 Wanted
  • Electronic listings from Spectrum Shadow ROM Disassembly?I've been reading [url="https://spectrumcomputing.co.uk/index.php?cat=96&id=2000371"]Gianluca Carri's Spectrum Shadow ROM Disassembly[/url] book (Wor…

    ... =2000371"]Gianluca Carri's Spectrum Shadow ROM Disassembly[/url] book (World of ...
    JamesYoungman JamesYoungman December 2020 Development
  • Interface 1 Rom UpdateHi, I have an Interface 1 with a version 1 Shadow Rom, I would like to update it to Version 2. I think IF1 Rom v2 code could be burned into a T…

    ... 1 with a version 1 Shadow Rom, I would like to update ... .

    I think IF1 Rom v2 code could be burned ... there maybe a version 3 rom, was that ever released.
    doubledecca doubledecca August 2015 Hardware
  • Books from Melbourne HouseHi fellows I'm wondering if anybody can help me with the following books from Melbourne house: - The complete Spectrum ROM Disassembly - Spectrum H…

    ... :

    - The complete Spectrum ROM Disassembly
    - Spectrum Hardware Manual ... Micro Drive Book,
    - Spectrum Shadow ROM Disassembly
    - Spectrum Hardware Manual ...
    AndersJensen AndersJensen October 2002 Wanted
  • 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…

    ... various different bits of ROM-equipped hardware trap?
    shadow ROMs on the edge ... for another device's shadow ROM to work with an ... all hardware with a shadow ROM use that system variable ... that two peripherals with shadow ROMs can peacefully co ...
    Winston Winston October 2007 Hardware
  • Z-80 Reference GuideI'm after a copy of: ******************************************** [URL]http://www.worldofspectrum.org/infoseekid.cgi?id=2000433[/URL] Z-80 Reference…

    ... ?id=2000371[/url]
    Spectrum Shadow Rom Dissassembly
    Melbourne House
    Complete Spectrum ROM Disassembly, The
    Melbourne House ...
    dekh dekh January 2008 Wanted
  • If you've got a real working MF128,IF1, and MDR combo can I ask a favour?So, if you do have a real Multiface 128, Interface 1, Microdrive and, oh yeah, a Spectrum (48k or 128k) that are all working, can I ask a favour...? …

    ... ]
    ;
    ; Nasty Interface 1 Rom Check
    ; mailto: jp@drumfu ... /> hd_11 equ $5ced ; jump to shadow rom address
    ;
    exx ; save ... ;
    rst $08 ; page in shadow rom
    defb $32 ; and jump ...
    jp jp February 2008 Hardware
  • Spectrum Shadow ROM Disassembly[url]http://www.worldofspectrum.org/infoseekid.cgi?id=2000371[/url] Anybody got a nice clean copy to sell in the UK? Cheers

    [url]http://www.worldofspectrum.org/infoseekid.cgi?id=2000371[/url]

    Anybody got a nice clean copy to sell in the UK?

    Cheers
    dekh dekh March 2008 Wanted
  • 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…

    ... have got the I/F1 shadow ROM paging itself in and out ...
    Jimmy Jimmy March 2008 Emulators
  • 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…

    ... feed data in using the ROM's ADD-CHAR routine, at ... wading through the Shadow ROM disassembly and Complete Spectrum ROM disassembly to find ...
    Winston Winston July 2009 Development
  • 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…

    ... ; hook code to call any shadow rom address
    ret
    ;
    jp jp August 2009 Development
  • Memory mapping: Pentagon compatibility?I'm writing something that will rely heavily on the Spectrum's ability to switch screen buffers in hardware (port 0x7FFD). The original Spectrum 128K…

    ... 0000h address ROM is placed. If 1, ROM is disconnected ...
    Bit 3 - Management of shadow ROM. If 0 you get the ... additional (Free) page of ROM. This mode has the ... an additional page of ROM occurs regardless of the ... which from pages of ROM at present was at ...
    ajmoss ajmoss August 2010 Hardware
  • Are any Spectrum books really this valuable?I recently noticed a copy of Machine Code Applications for the ZX Spectrum on eBay at a "buy it now" price of ?77 - that's seventy-seven quid - and n…

    ... quite some time, like the Shadow ROM Disassembly, some type-in collections ...
    Battle Bunny Battle Bunny January 2011 Sinclair Miscellaneous
  • Question about DivIDEHi guys, Tell me this... (please) DivIDE features an "auto-mapping feature transparently maps shadow ROM at important entry points". Depending on …

    ... "auto-mapping feature transparently maps shadow ROM at important entry points". Depending ... should switch in the DivIDE ROM, based on the firmware installed ...
    BloodBaz BloodBaz June 2011 Hardware
  • The Sinclair ZX Microdrive Resurrection Project (long)Dear Spectrum fans! [Management summary: Download [url]http://www.bartheld.net/temp/mdv2img.zip[/url] and tell me what you think. All help very much…

    ... issues, Gianluca Carri's "Spectrum Shadow ROM Disassembly" and a few other ...
    Volker Volker March 2012 Emulators
  • A new ZX spectrum cloneOver the past 12 months i have been developing a new spectrum clone as a hobby project to waste my spare time on. It is still not fully complete yet …

    ... output
    Interface 1 style shadow ROM for BASIC extensions
    4 ... ).
    All FPGA files and ROM files are loaded from the ...
    mspec mspec August 2012 Hardware
  • Microdrive Serial ProtocolGentlemen, I've been dreaming for a long time to develop a Microdrive emulator, where an SD card loaded with .MDR cartridge images can be accessed t…

    ... Micro Drive Book, the Spectrum Shadow Rom Disassembly, the IF1/Microdrive Service ... yet.

    From the Shadow Rom Disassembly, it is apparent that ...
    Falco-F8L Falco-F8L June 2013 Hardware
  • IF1bis StabilityI just thought I would start a different thread relating to the IF1bis, and leave the copyrighters to it elsewhere...:-P I've had mine for a few mon…

    ... reinstall the two basic and shadow ROM files onto the system. It ...
    Simon_Carr Simon_Carr September 2013 Hardware
  • IF1bis Communication ErrorHello again.... I've just been working again with my IF1bis, having had to re-install the basic and shadow ROMS (probably my fault corrupting the I…

    ... re-install the basic and shadow ROMS (probably my fault corrupting ... have installed the basic and shadow ROM files, and also updated the ...
    Simon_Carr Simon_Carr November 2013 Hardware
  • IF1bis: I give up! WARNING to casual usersI guess the title of this thread really says it all. I have had an IF1bis for a number of months now, and feel that it is time to express my final fe…

    ... , and that the basic and shadow ROM files used to run it ...
    Simon_Carr Simon_Carr March 2014 Hardware
  • Creating your own BASIC-commands on IF1bisThe old Sinclair IF1 has offered an easy possibility to create your own new BASIC-command: The use of the shadow variable VECTOR. This is described i…

    ... -command: The use of the shadow variable VECTOR. This is described ... for different versions of the shadow ROM! For instance, the STK-END ... , somtimes on #2274, even for shadow ROMs of the same version ...
    HZJ HZJ March 2014 Hardware
  • New from Paul Farrow, the ZXC4This is exciting stuff!!!! Sorry if ive stepped on your toes Paul, wanted people to hear about it!!! [QUOTE]Hi I?m happy to announce the release o…

    ... paging mechanism, using the ROM cartridge as a shadow ROM. This opens up ... a range of possibilities. The 4MB FLASH ROM ... in the Spectrum ROM, using the ROM cartridge as a shadow ROM. This opens ...
    Macc Macc July 2014 Hardware
  • Disciple extensionHello to all! Today I successfully repaired a MGT Disciple belonging to a friend of mine, and in the process I had a chance to study a little this r…

    ... few internal signals (two on shadow ROM chip enable and one to ...
    Falco-F8L Falco-F8L January 2015 Hardware
  • Interface 1 ShadowROM pagingI read the Interface Shadow ROM Disassembly book. I wondered how that rom calls the interface's rom paging mechanism. It doesn't! I learned there is …

    ... the Interface Shadow ROM Disassembly book. I wondered how that rom calls ... the interface's rom paging mechanism. ... $1708, the interface pages the shadow rom in. And when it reaches ... $700, it pages the BASIC rom back in.

    ...
    zPasi zPasi October 2015 Hardware
  • New game: SOPHIA II[img]http://www.alessandrogrussu.it/zx/Sophia2.png[/img] Hi fellas! After the [url=https://www.worldofspectrum.org/forums/discussion/56771/comi…

    ... totally rewritten by employing the shadow ROM's system call to $3D13 ...
    Alessandro Grussu Alessandro Grussu February 2019 Brand new software
  • Hook CodesIf you've dug into the Interface 1 this should be an easy question. I last had 'em circa 1990 while I can remember the things they did Start Motor C…

    ... the development on the first ROM, Dr Andrew Pennell assisted in ... Hook Code, it's name, shadow ROM location and
    function.
    32 SHADOW 19A4 1E94 1E96 call the shadow ROM routine addressed.
    Geoff Geoff February 2001 Sinclair Miscellaneous
  • Microdrive woesHi there! Just managed to pick up a 2nd hand Microdrive and interface one... Came with an introductory program which doesn't seem to load. Since its…

    ... who wrote the Melbourne House Shadow ROM Disassembly.
    He also wrote ...
    Geoff Geoff March 2002 Sinclair Miscellaneous
<1234567…34>

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Related Threads

  • 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:<br /…
  • Spectrum Shadow ROM Disassembly[url]http://www.worldofspectrum.org/infoseekid.cgi?id=2000371[/url]<br /> <br /> Anybody got a nice clean copy to sell in the UK?<br /> <br /> Cheers
  • Shadow ROM partial decoding not implemented in emulatorsOr at least, not implemented in Spectaculator, and it seems that not in Fuse too.<br /> <br /> [URL="http://www.speccy.org/foro/viewtopic.php?f=8&amp…
  • Wanted - Spectrum Shadow ROM DisassemblyHiya, if you've got a hard copy of [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=2000371&amp;loadpics=1"]Spectrum Shadow ROM Disassembly[/UR…
  • Searching for correct Betadisk 48k TR-DOS v4.12 ROM (Save ROM via TRDOS-Prompt to Disk)Hi,<br /> <br /> I have two ROM-Files which should be read out from an original Betadisk 48 Interface TRDOS v4.12 (ROM-Size 8k).<br /> But when I …
  • Is it possible to run a single BASIC line via a ROM CALL of the Standard ZX 48k ROM?On: https://cygnus.speccy.cz/popis_trdos-assembler.php<br /> <br /> I found the following code:<br /> [code]<br /> CHADD equ 23645 ; Location of…
  • Electronic listings from Spectrum Shadow ROM Disassembly?I've been reading [url="https://spectrumcomputing.co.uk/index.php?cat=96&amp;id=2000371"]Gianluca Carri's Spectrum Shadow ROM Disassembly[/url] book …
  • Shadow of the UnicornI've written a program to run Shadow of the Unicorn on a +2A/+3. Is there anywhere it can be put to be available to anyone wanting to play the game?…
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