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  • Question about The Complete Spectrum ROM DisassemblyHello I just purchased a copy of the Complete Spectrum ROM Disassembly book in great shape and noticed that the cover looks slightly different than …

    ... copy of the Complete Spectrum ROM Disassembly book in great shape ...
    memrah memrah February 2014 Sinclair Miscellaneous
  • Rotronics Wafadrive romHi, If anyone has a copy of the Rotronics Wafadrive rom (wafadrv.rom) could you drop me an email please to help with the testing of an MIA Lerm tape…

    ... copy of the Rotronics Wafadrive rom (wafadrv.rom) could you drop me ...
    Gilby Gilby February 2014 MIA/STP/SDP
  • writing incrementally to tape without leadersI want to be able to write intermittently & incrementally to some sequential medium which is supported on any Spectrum (emulator, ie. tape); eg. [cod…

    ... output "ABCD...Z" using this routine all I really want is ... my own tape routine rather than the one in ROM. Is there ...
    Battle Bunny Battle Bunny March 2014 Development
  • 4294967296 pseudo output portsIn an effort to avoid any hardware conflicts with the clashbasher interface I've been looking for an alternative to using the spectrum's ports for ou…

    ... their own ram and/or rom.

    So I thought ... use of some of the unused/undocumented op codes that the ...
    Basher Basher March 2014 Hardware
  • TAPlist - the emulator versionI've got this working reasonably well; there's just a couple of small extra features which I want to add. (Recall that TAPlist writes a formatted lis…

    ... parity byte written by the ROM SAVE routine. Some editors might treat ... token lengths and m/code routine for expanding the tokens (see ...
    Battle Bunny Battle Bunny March 2014 Sinclair Basic
  • CIRCLEHi, I'd like to draw a circle x,y,r using the BASIC-ROM subroutines. I've put x, y and r onto the calculator stack and used CALL #232D and RET. I g…

    ... -ROM subroutines. I've put x, y and r onto the calculator ...
    HZJ HZJ March 2014 Development
  • Help needed with calculating screen addressesCan anyone help me finally crack Jonathan Cauldwell's screen addressing calculator and, more to the point, is the reason I'm struggling because this …

    ... Jonathan Cauldwell's screen addressing calculator and, more to the point ... I'm struggling because this calculator algorithm is broken?


    Here is a routine which returns a screen address ...
    Jagd Tiger Jagd Tiger April 2014 Development
  • Might need a new ROM for an MF128Had some trouble recently that has apparently killed my MF128, basically on pressing the NMI I get black paper and multicoloured vertical lines, and …

    ... for curiosity I lifted the ROM out of that and tried ...
    Macc Macc April 2014 Hardware
  • understanding machine codeHi Quick question. Am not really sure if it fits development forum as its not really development per se its more a learners question about developm…

    ... -82 I am running the routine and had couple of questions ... I will look at the ROM Disassembly to see if it ...
    username username April 2014 Sinclair Miscellaneous
  • BAS-ROM for HarlequinSince it is very easy for everybody to plug a new BAS-ROM into his Harlequin there is the question, what kind of ROM and what additional functions sh…

    ... plug a new BAS-ROM into his Harlequin there ... question, what kind of ROM and what additional functions ... should be collected in this ROM?
    Boundary condition: ... The new ROM has to be compatible ... A) The ISO-ROM
    B) The SE-ROM
    C) ...
    HZJ HZJ April 2014 Development
  • byte to screen eventI have another question regarding assembly routine in MMCOYZXS by Toni Baker page's 87-88 [QUOTE]21A440 LD HL,40A4 11083F LD DE,3F08 0608 LD B,08…

    ... have another question regarding assembly routine in MMCOYZXS by Toni Baker ... of the character from the ROM table.

    Anyone put ...
    username username April 2014 Sinclair Miscellaneous
  • 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…

    ... beeps using a machine code routine which steps through $4000 - $7FFF ... contended video memory or "uncontended" ROM in the EXROM socket or ... as well call this "contended ROM".

    This solves one ...
    rga24 rga24 May 2014 Hardware
  • Xark does not loadXark does not load on many emulators (e.g. Klive, Fuse, FBZX Wii) both with speed load routine and normal mode. [url]http://www.worldofspectrum.org/…

    ... Wii) both with speed load routine and normal mode.

    ROM expects 0X00 instead of 0XFF ...
    Oibaf Oibaf May 2014 Emulators
  • Sam Coupe signed ROMThough not strictly Sinclair hardware I found this interesting enough to share. I was looking through the various MGT Sam coupe hardware that I have …

    ... saw that one of the Rom chips was signed by Gordon ...
    Cameraman Cameraman May 2014 Hardware
  • SkoolKit 4.0SkoolKit 4.0 has been released. SkoolKit is a set of command line utilities for disassembling Spectrum software, into ASM format or into a bunch of …

    ... or Z80
    [*]automatically label routine entry points
    [*]automatically annotate ... every routine entry point with a list ... fixes, and with or without unused bytes removed
    [*]produce a ...
    SkoolKid SkoolKid May 2014 Announcements
  • Which games perform checksums on the 48K ROM?I've just modified a version of the 48K Spectrum ROM designed for use on the Timex Sinclair 2068, so that a 16 bit checksum of the ROM produces the r…

    ... version of the 48K Spectrum ROM designed for use on the ... 16 bit checksum of the ROM produces the result $641F and ... values as the standard 48K ROM.

    Does anyone ... performed these tests on the ROM? I'd like to ... try the new ROM out on these games.
    rga24 rga24 June 2014 Development
  • Interface 1 ROM replacementHi All! I wrote down my story because I think that somebody might have similar problem and can find some ideas here how to overcome it... :) Recent…

    ... br /> I removed the ROM and the ZX Spectrum started ... any commands that needed the ROM, it failed with the ... with an "external Interface 1 ROM":
    [IMG]http://gigant ... Spectrum pages in that ROM at only a certain ... is no space for a ROM interface board, so the ...
    jimre jimre June 2014 Hardware
  • LM ram block transfer routineHello! I need to transfer a block of 33000 bytes starting from address 28000 to a new start address, 31000, using a LM routine. Please, someone coul…

    Hello!
    I need to transfer a block of 33000 bytes starting from address 28000 to a new start address, 31000, using a LM routine.
    Please, someone could help me?
    Saltor Saltor July 2014 Sinclair Miscellaneous
  • Block RoutineHi Folks, I want to draw a block on the screen dependent on providing the X,Y,W,H values. I came up with the following: [CODE]100 LET l$=" …

    ... : PRINT AT 0,0;"Block Routine"
    160 GO SUB 200 ... STOP
    180 REM Block Routine
    190 REM x,y ... />
    Anyone got a better routine?

    Many thanks
    Paddy Coleman Paddy Coleman July 2014 Sinclair Basic
  • +128 with usr0 in menu screenIve just watched a video of a guy with a spectrum and on the loader menu i think under calculator the menu had an entry for usr0,anyone aware of this…

    Ive just watched a video of a guy with a spectrum and on the loader menu i think under calculator the menu had an entry for usr0,anyone aware of this rom or know were to find a copy?:-D
    zedexspectrum zedexspectrum July 2014 Emulators
  • Would Anyone Be Willing/Able To Burn Me A RomI would Like If Possible For Someone To Burn Me A Custom 32k Rom But I Would Also Need The Chip Supplied Which Cuts Down My Chances Of Someone Being …

    ... Burn Me A Custom 32k Rom But I Would Also Need ...
    zedexspectrum zedexspectrum July 2014 Hardware
  • analysing program variable usageIf I wanted to count the number of times each variable is referenced while a program is running (not the number of times each variable is referenced …

    ... an emulator with a modified ROM file with a patch in ... already has an error trap routine anyway), count the reference and ...
    Battle Bunny Battle Bunny July 2014 Sinclair Basic
  • Spectrum 128 Pre-production machinesHope aowen doesn't mind the crosspost from c.s.s, but I thought this was worthy of a thread over here: [QUOTE]A member of the Spectrum 4 Ever group …

    ... the extraction of the ROM and it's labelled ... Sinclair Research Ltd DERBY". ROM 1 is the same as ... the original Spectrum ROM except for the copyright ... version and date after the calculator code. None of the ... machine with a later ROM featuring the menus. I ...
    balford balford August 2014 Hardware
  • Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…

    ... ];Taken from The Incomplete Spectrum ROM Assembly
    ;http://www ...
    To the software, the routine to display a character, given ... this C64 arrangement makes the routine to calculate the screen ... one character with the first routine, the value in DE ...
    mcleod_ideafix mcleod_ideafix September 2014 Development
  • Spectrum Test Program into ROM cartridge?Hello! I need your help! Is there away to put [URL="http://www.fruitcake.plus.com/Sinclair/Interface2/Cartridges/Files/Cassette_Files/Test_Program.tz…

    Hello! I need your help!
    Is there away to put [URL="http://www.fruitcake.plus.com/Sinclair/Interface2/Cartridges/Files/Cassette_Files/Test_Program.tzx"]this program[/URL] into a Rom cartridge?
    Many thanks in advance.
    Saltor Saltor September 2014 Sinclair Miscellaneous
  • LOAD "" CODE in machine code/store 128 bank dataHow do you LOAD "" CODE from machine code? I have written the following MC routine that fits into a REM statement in a basic program. I want to cal…

    ... have written the following MC routine that fits into a REM ... want to call the ROM's LOAD "" CODE routine, nothing fancy headerless ... border colours.
    call 3503 ; ROM routine - clears screen, opens chan 2 ...
    daveysludge daveysludge October 2014 Development
  • 404 for Retroleum's daignostic ROM: Request.[url]http://www.retroleum.co.uk/electronics-articles/a-diagnostic-rom-image-for-the-zx-spectrum/[/url] I'm getting access denied when I try to downl…

    ... .uk/electronics-articles/a-diagnostic-rom-image-for-the-zx-spectrum ... try to download the Diagnostic ROM, I've just emailed the ...
    Korinel Korinel October 2014 Hardware
  • Soundex routineIn an idle 5 minutes I wrote a short routine to calculate Soundex codes using the algorithm described here: [url]http://en.wikipedia.org/wiki/Sounde…

    ... minutes I wrote a short routine to calculate Soundex codes using ...
    Battle Bunny Battle Bunny November 2014 Sinclair Basic
  • JET PAC ROM & INTERFACE 2Hi - I have two items for sale either singularly or together- A working Interface 2 and a working Jet Pac ROM cart- (in box but no instructions) I am…

    ... and a working Jet Pac ROM cart- (in box but no ...
    retromad retromad December 2014 Sales
  • SkoolKit 4.2SkoolKit 4.2 has been released. SkoolKit is a set of command line utilities for disassembling Spectrum software, into ASM format or into a bunch of …

    ... or Z80
    [*]automatically label routine entry points
    [*]automatically annotate ... every routine entry point with a list ... fixes, and with or without unused bytes removed
    [*]produce a ...
    SkoolKid SkoolKid December 2014 Announcements
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Latest Posts

  • European Software Titles with an English version
    harriusherbartio on 12:06PM
  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on 11:21AM
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade 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
  • 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

HitBox

Word Docs Hits
calculator 1K 1.5K
routine 9.5K 14.8K
discard 228 261
unused 1.1K 1.4K
rom 15.6K 29.7K

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  • Competition: Sadistick routine on Spectrum ROMMy vote goes to BEEPER at #03B5<br /> Let's ear you pick! :)<br /> <br /> And a great BOHHHHHHHHHHHHH to Dr Ian Logan &amp; Dr Frank O'Hara for their…
  • I just learnt that Spectrum has 1kB of unused ROMWell, man learns through all his life. I have just discovered that Spectrum has over 1 kilobyte of unused ROM memory, from address 14446 to 15615. Al…
  • can someone help with a rom routinei have been trying to draw a simple line with a the rom routine , but i just cant get it to work , so if anyone can give me an example in z80 that wo…
  • Silent ROM Beeper Routine in SpinA new year -- a new idiot question! :)<br /> <br /> I've been playing around with Spectrum sounds of the old, beepy kind. When I wiggle[1] the speake…
  • How works the Line-Draw ROM routine ?The 'complete spectrum rom dissasembly.pdf' show info related to the draw rom subroutine. The Line-Draw require two sets of parameters: X,Y coordinat…
  • Screen$ command, ROM routineHi All,<br /> <br /> Does anyone know which ROM routine to call for the Screen$ command (and/or the ATTR command)? Any comments on how well it works…
  • using the ROM's FP calculatorIs it possible to use the ROM's FP calculator to evaluate any FP expression in a single sequence of commands without breaking out to stack some other…
  • ROM Calculator TrigHello,<br /> <br /> These Christmas holidays I finally have time to devote myself a little to the speccy .<br /> <br /> I have a question about how t…
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