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<1…12131415161718…34>
  • Assembler question about collisions and arranging dataSay you have a game with a playercharacter and some items on the screen - pretty normal for most games, and now you need to check if the player has r…

    ... objects are all the same size and have to be positioned ... tricks like this with movable block objects. They're down as ... the new position with a block, and deletes the sprite.
    joefish joefish July 2011 Development
  • 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…

    ... four files were the same size, so the other three didn ... $6000 = 24576
    hp = header block parity byte
    dd = data ... flag = 255
    data block & data block parity byte follow (not ... =5633, start=40023 for data block parity byte. For the purposes ...
    Battle Bunny Battle Bunny August 2011 Emulators
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... about this final remark: "The block is terminated by an end ... ."? What is meant by "the block" here? Where does this sequence ... the end of the compressed block. You need this because there ... .sna files have the same size, .z80 files have different lengths ...
    PeterP PeterP September 2011 Emulators
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... .sna files have the same size, .z80 files have different lengths ... should have a single compressed block with 1 end marker. But ... . Start decoding the compressed memory block after the 30 byte header ...
    Arjun Arjun September 2011 Emulators
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... files differ in size (length of compressed block is different in ... different files), the size of data ... />
    - read the compressed block of .z80 file into a ... . For example, if the compressed block started with
    "ED ...
    PeterP PeterP September 2011 Emulators
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... files differ in size (length of compressed block is different in ... different files), the size of data ... />
    - read the compressed block of .z80 file into a ... . For example, if the compressed block started with
    "ED ...
    Dunny Dunny September 2011 Emulators
  • Inlay Project DiscussionAll, It's time this project was actually started in anger. The aim of this thread is to find out what every wants from it and the standards that sh…

    ... should be a standard size for the finished cover ... would be half the size of double cystal case ... off between compression and file size. Some scans I've ... these days. The aditional size could come at a higher ... compression is where each 8x8 block of a jpeg has ...
    Bangstick Bangstick September 2011 Support files
  • File size in 128K RAM diskHi Folks, Is there a way to get the size of a file stored in the 128K RAM disk from within a BASIC program? Many thanks Paddy

    ... $() holds names, F() holds start,size,end. Line 15 swaps in ... . RAMTOP should probably be below 49152 ($C000) or things might go ...
    Battle Bunny Battle Bunny September 2011 Sinclair Basic
  • File size in 128K RAM diskHi Folks, Is there a way to get the size of a file stored in the 128K RAM disk from within a BASIC program? Many thanks Paddy

    ... $() holds names, F() holds start,size,end. Line 15 swaps in ... . RAMTOP should probably be below 49152 ($C000) or things might go ...
    Paddy Coleman Paddy Coleman September 2011 Sinclair Basic
  • File size in 128K RAM diskHi Folks, Is there a way to get the size of a file stored in the 128K RAM disk from within a BASIC program? Many thanks Paddy

    ... /> HD_0B 23410 length of block
    HD_0D 23412 start ... of block
    HD_0F 23414 if ... prints the filename, type and size.

    [CODE] ... PRINT AT 4,0;"FILE SIZE = ";PEEK 23410+256* ...
    Paddy Coleman Paddy Coleman September 2011 Sinclair Basic
  • TZX format rev. 1.21Once 1.20 draft seems to be official now I would like to suggest some additiones to do on 1.21. I hope it will be easier to upgrade once block 19 has…

    ... have the same filename, same size for a file. Infoseek Id ... that strips all archive info block from a TZX directory with ... can simply delete the entire block or update the info from ...
    Juanma Juanma September 2011 Emulators
  • TZX format rev. 1.21Once 1.20 draft seems to be official now I would like to suggest some additiones to do on 1.21. I hope it will be easier to upgrade once block 19 has…

    ... arguments such as the file size bloat instead is such a ... actually use the Archive Info block and the ones that do ...
    rich_chandler rich_chandler September 2011 Emulators
  • TZX format rev. 1.21Once 1.20 draft seems to be official now I would like to suggest some additiones to do on 1.21. I hope it will be easier to upgrade once block 19 has…

    ... actually use the Archive Info block and the ones that do ... to get that anorexic file size you prefer? I myself delete ...
    Juanma Juanma September 2011 Emulators
  • Paging memoryI've been thinking about a possibility of paging blocks of memory to and from disk. Imagine dividing usable 32KB of Speccys RAM (why do they call it …

    ... process id that occupies that block.

    Now at the ... 't be fragmented and max.size is 128GB (limit of DivIDE ... ZX 128kB (or more). Page size can be from 512 bytes ...
    velesoft velesoft October 2011 Development
  • Paging memoryI've been thinking about a possibility of paging blocks of memory to and from disk. Imagine dividing usable 32KB of Speccys RAM (why do they call it …

    ... each bit saying whether the block is reserved by the process ... not. Bit 0 being the block from 32768 to 32768+1024 ... header) desireable heap and stack size. This is allocated at the ...
    tstih tstih October 2011 Development
  • Lord Of The Rings; Files skipped ?Hi folks, Does anyone know what blocks 8~13 are for in the Lord of The Rings: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0006601[/url] I…

    Nope, I think it's called Parity. A header will show as 19 bytes but the actual data is 17 bytes. Same as a screen block which would be 6914, but the actual size is 6912.
    I'm sure someone will pop in and tell us the technical term for it ;-).
    Andrew Barker Andrew Barker October 2011 MIA/STP/SDP
  • I am currently playing......Don't know if there's been a thread like this, but I can't find one.... Having seen all the different threads asking people if they've played such a…

    ... so obviously you can't block it.

    I did ... />
    *Because of the sheer size the EDIT made this post ...
    dm_boozefreek dm_boozefreek October 2011 Chit chat
  • Newbie says 'Alreet?'Hiya dudes, Just dropping a line to say hello as i've decided at 33 to try and fulfill a long time ambition to write a speccy game in machine code..…

    ... *8 pixel block. Which brings the total to 6912 bytes = size of ...
    RetroTechie RetroTechie November 2011 Development
  • how can we convert .z80 to .tap ?is there some way to convert a .z80 file (specially 48k) to .tap, in a similar result as saved from Multiface1? (i'm asking this because i imagine th…

    ... ; 23979 243
    LD SP, 49152 ; 23980 49 0 192
    block have not taken the missing ...
    Battle Bunny Battle Bunny November 2011 Development
  • Alkatraz protection systemI recently became interested in the Alkatraz protection system, a very widely used tape protection (a infoseek search returns more than one hundred r…

    ... . It obviously depends on the size of the WAV file, and ... any sample rate or sample size (I use 88,1Khz 16 ... found, where, why did each block stopped, and so on. Take ...
    lfaria lfaria December 2011 MIA/STP/SDP
  • Alkatraz protection systemI recently became interested in the Alkatraz protection system, a very widely used tape protection (a infoseek search returns more than one hundred r…

    ... crashes. Is there an upper size limit? The 4th bin is ... an additional byte. The third block didn't.

    [B ... it to convert past 3rd block properly

    [B]Indiana ...
    richl richl December 2011 MIA/STP/SDP
  • Alkatraz protection systemI recently became interested in the Alkatraz protection system, a very widely used tape protection (a infoseek search returns more than one hundred r…

    ... . Is there an upper size limit? The 4th bin ... an additional byte. The third block didn't.

    block properly

    [ ... .
    As for the size limit, yes, the output ... , if BionicCommando128 has a block longer than that, you' ...
    lfaria lfaria December 2011 MIA/STP/SDP
  • Create a new microdrive cartridge image formatHi there, I'm working to emulate the IF1+Microdrives in JSpeccy.I've found what the "classic" MDR format ins't capable to store all the required inf…

    ... very much like the header block), immediately followed by the ... have empirically calculated a size of 792 bytes/sector.
    * GAP SIZE USED (1 BYTE) [in converted ... /> *
    * DATA (RAW SECTOR SIZE * NUM SECTORS bytes)
    * GAP ...
    zx81 zx81 December 2011 Emulators
  • St Dragon (Kixx & MAX Compilation)Hi folks, This title has been doing my nut in for years, and I wondered if anyone knew how to make a working TZX. [url]http://dl.dropbox.com/u/15363…

    ... /> [/QUOTE]

    The buffer size increase is already included in ... not the case of any block in this Game. I've ...
    lfaria lfaria December 2011 MIA/STP/SDP
  • Why are the same size memory cards different sizes?I've heard before that two memory cards or USB sticks can have the same official capacity, but be different capacities in reality, and I'm not talkin…

    ... hard drive was the size of a breeze block :)

    it ...
    fog fog December 2011 Chit chat
  • redubbing fixed versions of games ?not sure where this belongs.. [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0003433[/url] ninja was fixed a while ago (great) , so I wanted…

    ... size, when they made it, quite precise.

    the main block ...
    fog fog December 2011 Games
  • ANN: Tipshop updated Saturday, 31 December 2011Saturday 31 December 2011 The last update of the year - Happy New Year when it comes! * GoodBoy sent in a cheat for Wacky Races. * Hippy Smith sen…

    ... until we have a valid block of correct length

    49152 and finally play the game ...
    Jimmy Jimmy January 2012 Announcements
  • SnapToTap R2.3I've added z80 file support and raw binary exporting options to snaptotap. it's still 48k only though. [url]http://arda.kisafilm.org/fish/SnaptoTap…

    ... loader to load a snapshot block into zx spectrum *and* start ... . (note average compressed 128k snapshot size is about 55k)[/QUOTE]
    RobeeeJay RobeeeJay January 2012 Announcements
  • LZ77 en/decodingI've written an LZ77 en/decoding routine as I couldn't find one around for the Spectrum. Initially I'm just doing it in BASIC to get the logic right.…

    ... into "type" blocks (the optimum size needs some experimentation, say 1kb ... 8-bit block. Although the encoded blocks will vary in size, as ... would fragment the encoded "type" block structure.

    I've ...
    Battle Bunny Battle Bunny March 2012 Development
<1…12131415161718…34>

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HitBox

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block 7.9K 13.4K
size 13.4K 27.7K
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