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<1…16171819202122…34>
  • RAM used / corrupted by +3DOSAs I said previously, [url=http://www.worldofspectrum.org/forums/showthread.php?t=41775]I'm trying to put some games in hard disk[/url] so they can b…

    ... accessing is being done by ROM calls from m/code, and ... . The first 6912 bytes (the shadow screen) aren't referenced, nor ...
    Battle Bunny Battle Bunny December 2012 Games
  • Beta testing FuseHello everyone, We are preparing Fuse for a new release soon and would appreciate help in testing that all the new features and all the old features …

    ... the file disciple-epson.rom to disciple.rom and its found.
    ROM is being loaded.
    in ... 48k Spectrum and the correct ROM to use is the one ... both AF and the AF' shadow register should have been saved ...
    Fred Fred December 2012 Announcements
  • Varios +3(e)DOS questions?I'm converting tape games to disk, for being used in my +3e. I'm trying to convert them to standard BASIC loaders, so files could be copied using BAS…

    [QUOTE=Zup;700779]And a question related to commercial loaders. Because I'm being unable to crack some loaders (speedlock, etc.), I was thinking about attacking disk loaders. How did they read the disk? Did they use +3DOS calls or did they access the ...
    Battle Bunny Battle Bunny May 2013 Development
  • DivIDE quick loading advantages for new gamesI am amazed that no one has taken advantage of any of the DivIDE and such with its speed of loading. what i mean is its now possible to make a very …

    ... beyond the AY and the shadow video page. There's also ... that came out when CD-ROM first took off? Finally there ...
    chev chev July 2013 New game ideas
  • US Timex-Sinclair 2068 in EuropeWhilst in the States, I convinced a colleague to bid on a Timex-Sinclair 2068. We won the auction with a price much better than in Europe. Next time …

    ... uses all 64K is my Shadow of the Unicorn cart which ... rather than the original Spectrum ROM because that will run a ...
    chev chev July 2013 Hardware
  • Opus Discovery OddnessHi everybody, I'm busy trying to repair an Opus Discovery for a customer. It's proving to be quite frustrating. First off, the LM317T regulator fo…

    ... burned with a 2.2 ROM (the old one was dead ... it, a 2.31 Quickdos ROM should be a better choice ... second drive and to load shadow programs, but is not important ...
    Falco-F8L Falco-F8L October 2013 Hardware
  • z88dk and im2I set up a minimal IM2 mode so I can draw sprites for a laff [code] #include <string.h> #include <stdio.h> #include <im2.h> #include <stdlib.h> #in…

    ... can reuse the optimal IM2 ROM exploit -
    [URL="http://wordpress ... fast pushy routine to copy shadow screen to the real one ...
    tstih tstih October 2013 Development
  • Sillycon WarDoes anyone knows about Sillycon War? I like isometric 3D arcade adventures and I found this one at WOS: [URL="http://www.worldofspectrum.org/info…

    ... and read The Complete Spectrum ROM disassembly.

    TSW took ... 're not trivial, especially the shadow screen logic and the masking ...
    mazspork mazspork December 2013 Games
  • Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…

    [QUOTE=Speccy_James;752467]Can the rom calls for printing text be ... redirect your text to the shadow screen.
    Battle Bunny Battle Bunny February 2014 Development
  • Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…

    ... about. Are you using the shadow screen area in page 7 ... then printed text over with rom calls. I had the attributes ... I depack it to the shadow area ($a000) for the routine ...
    Speccy_James Speccy_James February 2014 Development
  • IF1Bis problems. The Edge of the Spectrum...Advice is sought from the learned on WoS. I just bought an Interface 1Bis from sunny South Africa. It arrived fast, but unfortunately doesn't work.…

    ... and re-checking the basic/shadow ROMs, conscientiously updating the software ... , the repeated re-installation of shadow/basic ROM having to use (and ...
    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…

    ... call routines directly
    - The Shadow-Restarts do the following: ........
    ROM-)call to 0496H (fail) without ...
    roko roko March 2014 Hardware
  • Totally random idea for the hardware nuts to exploreWhen it comes to multi-player games, how hard would it be to generate a second display from a single Speccy, instead of trying to link up machines, s…

    ... display the screen while the shadow screen area is mapped (available ... that the speccy's standard ROM attempts to write over itself ... overwritting some part of a "shadow" screen mirroring the lower 16Kb ... use a device shadowing the ROM writes in order to generate ...
    lfaria lfaria April 2014 Hardware
  • Plea for new hardwareI'm posting this as a poll as I want to judge if I'm a solo loon going on about this, or if people really are interested in either of the following S…

    ... display the normal or the shadow screen. I guess it wouldn ... -screen and mapped over the ROM; then, like SPECTRA, it would ...
    joefish joefish April 2014 Hardware
  • Timex contended memory timings, the TS2068 kludge board and EXROM at $4000 - $7FFFI haven't seen this documented anywhere yet so I thought I'd share my findings. I've been investigating contended memory timings on the Timex Sinclai…

    ... shadow ram, all ram are non-contend.
    Have to modify rom ...
    superfo superfo May 2014 Hardware
  • Timex contended memory timings, the TS2068 kludge board and EXROM at $4000 - $7FFFI haven't seen this documented anywhere yet so I thought I'd share my findings. I've been investigating contended memory timings on the Timex Sinclai…

    ... shadow ram, all ram are non-contend.
    Have to modify rom ... calls the AY via the ROM, it would probably be simpler ...
    chev chev May 2014 Hardware
  • Timex contended memory timings, the TS2068 kludge board and EXROM at $4000 - $7FFFI haven't seen this documented anywhere yet so I thought I'd share my findings. I've been investigating contended memory timings on the Timex Sinclai…

    ... shadow ram, all ram are non-contend.
    Have to modify rom ...
    superfo superfo May 2014 Hardware
  • ZX-Assembler file handling concept[QUOTE=clausjahn;777075]Dear readers, At this time, it's a good time to ask you, the future users, how to implement the file usage. Let's suggest so…

    [QUOTE=Shadow Maker;789108]What do you ... able to assign code to ROM, initialized data to a DATA ...
    Alcoholics Anonymous Alcoholics Anonymous September 2014 Emulators
  • ZX-Assembler file handling concept[QUOTE=clausjahn;777075]Dear readers, At this time, it's a good time to ask you, the future users, how to implement the file usage. Let's suggest so…

    [QUOTE=Shadow Maker;789807]I have a ... you about using the TRDOS ROM to read/write from disk ... in its own paged out ROM. In order to use TRDOS ...
    Alcoholics Anonymous Alcoholics Anonymous September 2014 Emulators
  • Edge Grinder, how would YOU do it?I always meant to post about this and AndyC reminded me in the 'vs' thread in games. [QUOTE=AndyC;808887]The thing I love about threads like this is…

    ... 128k only and using the shadow screen*...would there**?[/quote]
    ROM limit of 128K so there ...
    TMR TMR January 2015 Development
  • Help which is the most expensive game?Hi, Just now acution for 44 games wnet for ?118 crazy which is the most expensive game in the lot? [url]http://www.ebay.co.uk/itm/Joblot-of-44-Sinc…

    ... ;814222]Ultimate Collection
    and Shadow of Unicorn ([url]http://www ... ]

    Shadow of the unicorn had a rom with it. So ...
    Riggz Riggz January 2015 Games
  • My partial disenchantmente with PS4I've had a PS4 since christmas... My wife gave it to me. I loved the PS3, felt the machine still had a few good games to put out (contrary to PS2, t…

    ... Cleric Beast, Father Gasgoine, Shadow of Yarnham, Rom, One Reborne, Mikolash and ...
    Bermondsey Bob Bermondsey Bob May 2015 Chit chat
  • Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…

    ... the back of a Speccy, shadow all writes to video RAM ... jumper that makes it shadow writes to ROM addresses instead, you could ...
    joefish joefish June 2015 Emulators
  • Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…

    ... the back of a Speccy, shadow all writes to video RAM ... jumper that makes it shadow writes to ROM addresses instead, you could ...
    joefish joefish June 2015 Emulators
  • Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…

    ... the back of a Speccy, shadow all writes to video RAM ... jumper that makes it shadow writes to ROM addresses instead, you could ...
    zub zub June 2015 Emulators
  • Another silly hardware idea - RAM Pack adaptorHow about a mini bit of PCB that adapts ZX81 RAM Packs to replace the address space of the Spectrum's ROM? I guess practically you'd need a way to…

    ... possible to swap out the ROM for something else via the ... Mikro-Plus cartridge have a ROM pre-loaded with game code ... a bit more of [i]Shadow of the Unicorn[/i] once ... bit of both (small replacement ROM loading routine plus more RAM)?
    joefish joefish September 2015 Hardware
  • Another silly hardware idea - RAM Pack adaptorHow about a mini bit of PCB that adapts ZX81 RAM Packs to replace the address space of the Spectrum's ROM? I guess practically you'd need a way to…

    ... . I guess its only a ROM interface that loads the rest ... />
    If it used some "shadow RAM", it wouldn't work ... map some RAM into ROM space, but not Shadow of the Unicorn.
    Zup Zup September 2015 Hardware
  • Emulator developmentHi, Could anyone explain or direct to a link that explains in not to technical terms how an emulator is developed. It has always blown my mind eve…

    ... copy of the Spectrum's ROM. Then you set a "PC ... a second set representing the shadow register set.

    Then ...
    Dunny Dunny March 2016 Emulators
  • Please test your ZX128+2 (grey model)Please reset your ZX128+2 (grey) and write in 128 basic (or in USR0 mode): [B]PRINT IN 32765[/B] - if basic crash (black screen) then your ZX contai…

    ... ROM 1 becomes paged in) and the black screen (because the shadow ... at C000, and the 48K ROM's RAM test routine causes ...
    Peter Mulholland Peter Mulholland May 2016 Hardware
  • Basic Screen Shadow QuestionHello, I've been porting a game to the Spectrum from another platform. So far so good and I have per pixel screen scrolling working really nicely …

    ... the ROM, but this is not the case with the shadow screen ... of it

    Display shadow screen, page in normal screen ...
    Hikaru Hikaru August 2016 Development
<1…16171819202122…34>

Latest Posts

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    harriusherbartio on 11:01AM
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