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<1234567…34>
  • 16K Rom with RS232 supportHi all, I am looking for a 16K Rom-code (to fit into the speccy) which supports RS232 and Network of IF1. Background: I am using 48K Issue 3 with W…

    ... am looking for a 16K Rom-code (to fit into ... with Winstons Diag Board for Rom code storage and Piters simple ... the Diag board IF 1 rom paging in does not ... I am looking for a rom which already has the ... inside. I found the sea change rom but the used header format ...
    maskenlos maskenlos November 2008 Hardware
  • EmuZWin problem!Hello! I'm trying to load Fairlight I into EmuZWin v2.4.004. It don't load at all. I'v tryed several versions of fairlight I and II. Thees files …

    ... can't find where I change ROM.
    Golfareninsweden Golfareninsweden March 2004 Emulators
  • Universal disk drive controller project - information needed! Hello Speccy world! I am a hardware developer from Russia and old Speccy fan. Currently i am starting a project aimed at joining Western and Easter…

    ... of russian software use direct ROM calls for disk operations ( ... memory mapper (in order to change ROM entrypoints) and 16 kb ... implementation level (API calls, ROM routines or actual hardware) in ... how much software use direct ROM calls or direct FDC programming ...
    Sonic Sonic June 2005 Sinclair Miscellaneous
  • Universal disk drive controller project - information needed! Hello Speccy world! I am a hardware developer from Russia and old Speccy fan. Currently i am starting a project aimed at joining Western and Eastern…

    ... of russian software use direct ROM calls for disk operations ( ... memory mapper (in order to change ROM entrypoints) and 16 kb ... implementation level (API calls, ROM routines or actual hardware) in ... how much software use direct ROM calls or direct FDC programming ...
    Sonic Sonic June 2005 Development
  • Memory usageBrowsing the online documentation for the Spectrum I came across a peculiar discrepency. As we all know the start of the RAM is at 16384 which is whe…

    ... a bug in the original ROM caused the printer buffer to ... printer buffer in the 'Sea Change' ROM and you can have as ... plenty of clues in the ROM to suggest this was once ...
    Geoff Geoff November 2002 Sinclair Miscellaneous
  • Text compressionI'm sure I remember seeing a short machine code routine published in a (very random) multi-machine listings magazine way back in the mists of time, w…

    ... .

    Just use the ROM charset but have a lookup table ...
    Jon Needle Jon Needle October 2003 Games
  • EmuZWin problem!Hello! I'm trying to load Fairlight I into EmuZWin v2.4.004. It don't load at all. I'v tryed several versions of fairlight I and II. Thees files …

    ... /> I found out how to change ROM, thanks.

    My problem ... /> It actually requires another ROM. File|New|Custom ROM image...

    Golfareninsweden Golfareninsweden March 2004 Emulators
  • z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…

    ... of "switch to the graphics charset, draw the background; switch to ... 't work 'cause when you change the charset, what's already printed ...
    na_th_an na_th_an September 2005 Development
  • z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…

    ... can contain control codes to change relative print position, so ... automatically. This won't change the fact there are only ... of "switch to the graphics charset, draw the background; switch to ... t work 'cause when you change the charset, what's already printed ...
    Alcoholics Anonymous Alcoholics Anonymous October 2005 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…

    ... developed the gw03 ROM and also the "Sea Change ROM" which has the ... spare space of the original ROM. It still requires the ... my 1986 Expandor Systems SOFT-ROM and am useless with ... Spectrums together using the Sea Change ROM and Interface 1 hardware under ...
    Geoff Geoff January 2007 Hardware
  • 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…

    ... developed the gw03 ROM and also the "Sea Change ROM" which has the ... spare space of the original ROM.[/QUOTE]

    Some ... ResiDOS, but not the Sea Change ROM. Does that one work ... Spectrums together using the Sea Change ROM and Interface 1 hardware under ...
    glancaster glancaster January 2007 Hardware
  • 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…

    ... work with Geoff's Sea Change ROM.[/quote]

    Would it ...
    Marcelo Marcelo January 2007 Hardware
  • 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…

    ... be to port the IF1 ROM across to run in the ... .

    Also, the Sea Change ROM should be able to use ... problem. There's the Sea Change ROM, and I have the Complete ... Shadow ROM Disassembly book, containing a nice ...
    glancaster glancaster January 2007 Hardware
  • 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…

    ... feature.
    Also, the Sea Change ROM should be able to use ... problem. There's the Sea Change ROM, and I have the Complete ... Shadow ROM Disassembly book, containing a nice ... commented listing of the IF1 ROM ;)[/quote]

    Thank ...
    Marcelo Marcelo January 2007 Hardware
  • SE Basic 2The next version of Sinclair Extended BASIC will be based on Open82 which incorporates the math library from the ZX81 ROM and is distributed under th…

    ... constants used in the Sea Change ROM uses five byte constants in ... and uses [B]LESS[/B] ROM as the routine SKIP_CONST is ...
    Geoff Geoff April 2008 Sinclair Basic
  • 16K Rom with RS232 supportHi all, I am looking for a 16K Rom-code (to fit into the speccy) which supports RS232 and Network of IF1. Background: I am using 48K Issue 3 with W…

    ... ]

    The Sea Change ROM set out to place the ... CLOSE routines in the standard ROM that could handle such a ... with emulation :-) ).
    The standard ROM routines were compressed - often at ...
    Geoff Geoff November 2008 Hardware
  • 16K Rom with RS232 supportHi all, I am looking for a 16K Rom-code (to fit into the speccy) which supports RS232 and Network of IF1. Background: I am using 48K Issue 3 with W…

    ... the header format in Sea Change rom. The fundamental disadvantage is that ... like to connect the Sea change Speccy with a Standard Speccy ... I have in system programmable ROM. It works pretty fine. ... header format in the sea change rom to be compatible with the ...
    maskenlos maskenlos November 2008 Hardware
  • 16K Rom with RS232 supportHi all, I am looking for a 16K Rom-code (to fit into the speccy) which supports RS232 and Network of IF1. Background: I am using 48K Issue 3 with W…

    Ah, in which case, use the Sea Change ROM, and use a short routine in RAM to handle paging :-)
    Winston Winston November 2008 Hardware
  • 16K Rom with RS232 supportHi all, I am looking for a 16K Rom-code (to fit into the speccy) which supports RS232 and Network of IF1. Background: I am using 48K Issue 3 with W…

    ... my ability to analyse a ROM...[/QUOTE]

    There are ... assembly listing of the Sea Change ROM here

    [url]http ...
    Geoff Geoff November 2008 Hardware
  • 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 …

    ... ". I know Geoff's Sea Change ROM implemented this idea.

    ROM conspires against this from ever ...
    Jimmy Jimmy 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 …

    ... Geoff 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
  • So what about ethernet and ZX BASIC?Well, as of about 5 minutes ago, ZX BASIC for the first time properly wrote some packets to the network! OK, so it isn't perhaps 100% what Andrew Ow…

    ... by Geoff in the Sea Change ROM. Basically, when you open a ...
    chev chev July 2009 Hardware
  • font editor/designerI need a font designer, I've had a search on infoseek and not really turned up anything of any use. Any one got one I could have please? I need one f…

    ... that you could deisign a charset to use in the utility ... the same order as the rom charset I'll have to have ...
    BiNMaN BiNMaN October 2009 Development
  • Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…

    ... boot?) [/QUOTE]

    ROM games are those supplied as ... in its rom instead of the Spectrum ROM. However, ... only IF2 ROM images will ... br />
    Any ROM image will work - you can ... , like the Sea Change ROM or Gosh Wonderful ...
    Winston Winston October 2009 Hardware
  • +3 and IF1Can the IF1 be used with the +3

    [QUOTE=hotsnot;409389]thanks for the help.[/QUOTE]

    If you fix the edge connector issues you could probably use the RS232 and Network functionality by loading the Sea Change ROM in RAM. If you want to use microdrives you're stuck though.
    chev chev December 2009 Hardware
  • ZX Spectrum+ Problem - Need help -Greetings guys, I bought one ZX Spectrum+. This is what displays on the TV: [IMG]http://d.imagehost.org/0371/17102010_001.jpg[/IMG] When I switch …

    ... soldered in board, try to change ROM with another speccy.
    you ...
    willcz willcz October 2010 Hardware
  • Byte-order backbufferThis is a tool for Z80 coders who wish the Spectrum screen had a serial layout. It runs as an interrupt mode 2 service routine and uses POP and PUSH …

    ... main purpose of the Sea Change ROM was to use those routines ... in the original ROM that never got used in ...
    Geoff Geoff April 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... want something specific for the ROM charset, then I agree [strike]your ...
    Einar Saukas Einar Saukas June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... above 127 [B]and[/B] ROM font? Tsk, tsk... :)

    ROM charset, then I agree [strike]your ...
    Patrik Rak Patrik Rak June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... above 127 [B]and[/B] ROM font? Tsk, tsk... :)

    ROM charset, then I agree [strike]your ... doesn't apply to the ROM font... as I already indicated ... address ??*2048+1024", where the ROM font was merely an specific ...
    Einar Saukas Einar Saukas June 2012 Development
<1234567…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
  • Celebrity deaths...
    mel the bell on April 20

HitBox

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change 18.5K 21.8K
rom 15.6K 29.7K
charset 115 150

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  • 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 …
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