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<1234567…34>
  • Quick method of fixing TAP parity byte?Quick question: are there any DOS/Win32 utilities (or at least, something in C/++ I could compile in Windows) which fix the broken parity byte of the…

    ... Windows) which fix the broken parity byte of the blocks in a ... to tell me what the byte should be but that isn ...
    StuBruise StuBruise March 2007 Sinclair Miscellaneous
  • Running Man problems1] The TZX doesn't have side 2 - the levels! 2] The TZX contains nothing but standard data blocks and loads instantly just like a TAP file. But in t…

    ... in the Heroes compilation. One byte has been changed in the ... of the data and the parity byte has been altered correctly to ...
    PrinceClumsy PrinceClumsy August 2005 Games
  • 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…

    ... , then the leading type byte & trailing parity byte written by the ROM ...
    Battle Bunny Battle Bunny March 2014 Sinclair Basic
  • TZX format updateHi folks. Following the private communication with Andy I would like to start a discussion on changing the TZX format to reflect new needs and improv…

    ... (x) used in last byte are: 00xxxxxx
    For ... bit 0 flag byte present
    bit 1 parity byte present
    ... bit 2 parity XOR/ADD
    Mikie Mikie February 2004 MIA/STP/SDP
  • TZX format updateHi folks. Following the private communication with Andy I would like to start a discussion on changing the TZX format to reflect new needs and improv…

    ... />
    - used bits in first byte: there's no need for ... higher-level concepts such as "parity byte" in the mix here. We ... 1 Used bits in last byte (other bits should be 0 ... bits (x) used in last byte are: xxxxxx00
    08+NN ...
    Luca Luca February 2004 MIA/STP/SDP
  • TZX format updateHi folks. Following the private communication with Andy I would like to start a discussion on changing the TZX format to reflect new needs and improv…

    ... suggested the incomplete first byte: I understand that the ... the data (flag-data-parity), or the data would ... the flag and the parity are always present, which ... how to show the right parity status etc. (For ... red block because the parity byte is either not present ...
    Mikie Mikie February 2004 MIA/STP/SDP
  • How to program Machine Code on a PC, and then run it on a speccy?Well, I've been looking into MC a bit more deeply recently - I reckon I could get my head round MC now. Back when I was a teenager, I couldn't see th…

    ... party. It looks like the parity byte is wrong as it generates ...
    LCD LCD March 2004 Development
  • How to program Machine Code on a PC, and then run it on a speccy?Well, I've been looking into MC a bit more deeply recently - I reckon I could get my head round MC now. Back when I was a teenager, I couldn't see th…

    [quote]It looks like the parity byte is wrong as it generates ... page is broken, because the parity byte is fixed, so it fails ...
    Metalbrain Metalbrain March 2004 Development
  • TZX formatQuick question: What is the current pulse level at the start of a TZX file? Difficult question: Why does the format say that the final pulse shoul…

    ... the last bit of the parity byte. However the SA/LD-RET ...
    Luca Luca March 2005 Development
  • Ideas for new tape storage formatSome called them decoders or encoders, but I think that it is just something like form of presentation. Goal is of course smaller size, support of e…

    ... , P 1560
    FLAG BYTE none
    PARITY BYTE present, ADD instead of ...
    Black Hole Black Hole October 2005 Development
  • Listing Lenslok and Padlock protected softwareI was wondering if we could try to come up with lists of all software using either [url="http://www.worldofspectrum.org/infoseek.cgi?regexp=^Lenslok+…

    ... , P 1560
    FLAG BYTE none
    PARITY BYTE present, ADD instead of ...
    Andrew Barker Andrew Barker November 2005 Games
  • Running Man TZX incompleteThe Running Man TZX does not contain level data (side 2). This data is available on the Heroes compilation if it helps.

    ... in the Heroes compilation. One byte has been changed in the ... of the data and the parity byte has been altered correctly to ... ?
    Also, this TZX contains parity errors in blocks 3,6 ... in Addams Family has a parity error but loads fine.
    PrinceClumsy PrinceClumsy February 2006 MIA/STP/SDP
  • Running Man TZX incompleteThe Running Man TZX does not contain level data (side 2). This data is available on the Heroes compilation if it helps.

    ... in the Heroes compilation. One byte has been changed in the ... of the data and the parity byte has been altered correctly to ... in Addams Family has a parity error but loads fine.
    biotoxin biotoxin February 2006 MIA/STP/SDP
  • Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…

    ... /> Fixed the code as the parity was working fine (knew it ...

    22 10111100b : 188 (PARITY BYTE)
    22
    11
    ASM ASM November 2010 Sinclair Miscellaneous
  • SAVEing without waiting for keypresshello, here's question for y'all. is there a way in BASIC to bypass the "Start tape, then press any key" prompt when SAVEing an array? sorry if it'…

    ... , and there would be a parity byte at the end. LD-BYTES ...
    Battle Bunny Battle Bunny March 2011 Sinclair Basic
  • Need help transferring a file to a Spectrum .dsk fileHello, I was wondering if anyone can help me transfer a file that I have into a spectrum *.dsk file? The background to this request is that I have r…

    ... 24576
    hp = header block parity byte
    dd = data flag = ... data block & data block parity byte follow (not shown)
    < ... start=40023 for data block parity byte. For the purposes of ... + 1 for flag byte but excluding parity byte.
    In hex ...
    Battle Bunny Battle Bunny August 2011 Emulators
  • Need help transferring a file to a Spectrum .dsk fileHello, I was wondering if anyone can help me transfer a file that I have into a spectrum *.dsk file? The background to this request is that I have r…

    ... 24576
    hp = header block parity byte
    dd = data flag = ... data block & data block parity byte follow (not shown)
    < ... start=40023 for data block parity byte. For the purposes of ... + 1 for flag byte but excluding parity byte.
    In hex ...
    gasman gasman August 2011 Emulators
  • space available in bytes - questionHi, question: - if i create a *.txt file in pee cee: if empty it will show 0 bytes if i put text "abcde" it will show 5 bytes if i put texte (in 2 l…

    ... tape header, plus a flag byte and a parity byte.
    Battle Bunny Battle Bunny August 2012 Sinclair Basic
  • Directly poking TAP and TZX files, is it possible?Whilst doing some POKEs to change the behaviour of one of my favourite games, I pondered on this: instead of doing MERGE "" and inserting POKEs befor…

    ... with TAP files. The trailing parity byte needs to be recalculated as ... then the header and its parity byte also need to be updated ...
    Battle Bunny Battle Bunny March 2013 Games
  • Interface 1bisHas anyone on here got a "Interface 1bis": [URL="https://sites.google.com/site/interface1bis/"]https://sites.google.com/site/interface1bis/[/URL] I …

    ... /> PAT_LP CALL HX_BYT; Get data byte
    LD (DE),A; Patch ... bytes
    CALL HX_BYT; Get parity byte
    INC HL; Skip CR ...
    Dan Antohi Dan Antohi September 2013 Hardware
  • What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…

    ... bytes and the last byte is the 'parity' byte.

    05A9 LD ... A,H Fetch the 'parity matching'
    byte.
    CP +01 Return ...
    jamorski jamorski October 2013 Development
  • What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…

    ... constant
    ld h, 0 ; parity byte to zero
    ld a ... a, l ; new byte
    xor h ; parity byte
    ld h, a ... not
    ld a, h ; parity byte
    cp 1 ; set carry ... ) ; 0x7ffe
    rra ; shift the byte
    ret nc ; return with ...
    chev chev October 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... jp nz, sa_loop ; to include parity byte
    ld b, 59 ; ... br /> ld h, 0 ; parity byte to zero
    ld a ... a, l ; new byte
    xor h ; parity byte
    ld h, ... br /> ld a, h ; parity byte
    cp 1 ; set carry ...
    chev chev October 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... (de) ; compare high line number byte
    cp (hl) ; of ... (de) ; compare low line number byte
    cp (hl) ; of ... br /> dec de ; to high byte
    jr nc, me_new_l2 ; ... ; send header with type and parity byte
    ld b, 50 ; ...
    chev chev October 2013 Development
  • Batman Caped Crusader - Crash mini-episode not workingThe TZX file of the Batman Caped Crusader mini-episode given with Crash issue 60 ([URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0013514"]her…

    ... file also has a wrong parity byte (59 instead of 47). Correcting ...
    Alessandro Grussu Alessandro Grussu May 2014 Games
  • Sound interference and game errorsHi everyone! Here's some "issues" I have spotted. I'm still pretty new to ZX Spectrum computing/gaming...Just so you know. :) I'm using a Commodore…

    ... load error
    The tape parity byte is not an infallible method ...
    Battle Bunny Battle Bunny November 2014 Sinclair Miscellaneous
  • Dandy - Hacking lvl 6 needed, please.So, I've always wondered what's in the top right corner of level 6 of Dandy. I don't recall there being a fake wall or a door. But I wonder if som…

    ...

    Then fix the parity byte (it should be 61/0x3D ...
    Jmk Jmk March 2017 Games
<1234567…34>

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