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ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... - 128k.tzx".
[list]
[*]Uncompressed: 41,400 ... : 24,954 bytes
[/list][/QUOTE]
Makes ... features:
[LIST]
[*]Smallest depacker
... fast depacking
[*]No "data header" overhead - works particularly well ... -
ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... ][LIST]
[*]No need for temporary buffer when depacking
[*]No "data ... header" overhead - works particularly well with small blocks
[/LIST][/QUOTE ... -
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…
... combined each header with its data file in the DSK version ... can be summarised as:
[list=a]
[*]switch to ROM ... DOS: OPEN, READ (header), READ (data), CLOSE; unpack
[*]restore the ... ROM 3, RAMpage 4
[/list]
The BASIC loader ... -
ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... have a doubt. Since the data becomes contiguous in the destination ... -2: Here they are:
[list]
[*][B]AP13-ZX7-joined ... .tzx [/B]is the same data as the previous file but ... Apulija-13 so far.
[/list]
[url]http://alessandrogrussu.altervista ... -
ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... -2: Here they are:
[list]
[*][B]AP13-ZX7-joined ... .tzx [/B]is the same data as the previous file but ... Apulija-13 so far.
[/list]
[url]http://alessandrogrussu.altervista ... -
ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
[QUOTE=Einar Saukas;675379][LIST]
...
[*]Built-in RCS ... particularly well with screens
[/LIST][/QUOTE]
It's ... hl ; restore source address (compressed data)
jr main_loop
next_bit ... -
Adding TAP file contents to a Spectrum +3e DOS PartitionHello my fellow WoS'ers, This thread is a companion to a great little guide from a fellow AmiBayer [B]mnjnurney[/B] you can view his thread by [URL…
... work. There is an (incomplete) list of programs that will fail ... />
- Any program that loads data in the system vars area ... .
- Some programs load data into main RAM and then ... -
Adding TAP file contents to a Spectrum +3e DOS PartitionHello my fellow WoS'ers, This thread is a companion to a great little guide from a fellow AmiBayer [B]mnjnurney[/B] you can view his thread by [URL…
... work. There is an (incomplete) list of programs that will fail ... />
- Any program that loads data in the system vars area ... .
- Some programs load data into main RAM and then ... -
Adding TAP file contents to a Spectrum +3e DOS PartitionHello my fellow WoS'ers, This thread is a companion to a great little guide from a fellow AmiBayer [B]mnjnurney[/B] you can view his thread by [URL…
... =Zup;676086]- Some programs load data into main RAM and then ... important to preserve any code/data that may have been put ... handling of variations. A comprehensive list of loader variants would be ... -
RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…
... "next N bytes contain some data". This is exactly how "RLE ... ! Our main options are:
[LIST]
[*]Adding a single bit ... N squares are not empty".[/LIST]
I will later test ... -
RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…
... "next N bytes contain some data". This is exactly how "RLE ... ! Our main options are:
[LIST]
[*]Adding a single bit ... N squares are not empty".[/LIST]
I will later test ... -
New Game: Lost In My SpectrumHi folks, it is with great joy that I present you my first Spectrum game, [I]Lost In My Spectrum.[/I] LIMS started as a study experiment with Jonat…
... ]What's new:[/u]
[list]
[*]Fixed a bug which ... the inner game script.
[/list]
It has been submitted ... : the game now uses ZX7 data compression conceived by Einar Saukas ... -
Adding TAP file contents to a Spectrum +3e DOS PartitionHello my fellow WoS'ers, This thread is a companion to a great little guide from a fellow AmiBayer [B]mnjnurney[/B] you can view his thread by [URL…
... options to just list the TAP contents, or list & copy to ... it's not standard tape data it won't know what ... -
Windows 8 selling well...[Img]http://cultofmac.cultofmaccom.netdna-cdn.com/wp-content/uploads/2013/01/downgradetowindows7.jpg[/Img] When suppliers start selling downgrades y…
... , reading and writing system/serevice data and so on). Just look ... perfectly acceptable to store user data in [b]\Program Files\[/b ... added them into the safe list. To be honest I've ... -
ZX-Preview 2.2 publishedDear readers, yes, it's a big time of beta-testing and publishing, but I want to get my time free for my new project ZX-Assembler. Two days ago I r…
... useful for disassembling code and data from .tap and .sna files ... ZX-Preview's to-do-list. Also, loading a ROM label ... -
RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…
... a set instead of a list, i.e. you must avoid ... same offset twice otherwise your data structure and program execution time ... should also include the same list of "best offsets" of this ... -
Red DwarfA Red Dwarf video game - good or bad idea? (given its recent resurgence in popularity in the UK) My ideas: [b]Plots[/b] - An interquel which bridg…
... . These scripts run through a list of coded checks such as ... mess with the actual level data, just the current temporary map ... . They're each a simple list of tests and actions. One ... -
RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…
... will refer to this new data format as "RLE0-bit". It ... case (last screen in the list) where compression using "RCS, joefish ... -
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 …
... /> I got now an " format data lost", did a hard reset ... following order in the standard list of ubuntu, some starting " do ... -
+3e filebrowserHello everyone, Im writing a game/program loader for the +3e (with an IDE interface, but it can work with floppies too). The program lets you choose…
... />
The program dumps a list of partitions and files from ... would be to read the data (partition/filenames) directly from the ... -
Biturbo 2 turbo loader now available for general useAfter tinkering with its code, extracted from a TZX of one of the infamous Italian S.I.P.E. "tape magazines" which published hacked games for the Spe…
... assemble in this order:
[LIST=1]
[*]the BASIC ... select the following "Standard speed data" block and from the ... "Turbo speed data". Alter the values by entering:
[LIST]
[*] ... /> [*]One pulse - 833.
[/LIST]
Save the TZX file ... -
RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…
... /> This package contains:
[LIST][*] Two different "integrated RCS+ZX7 ... Turbo" version) when decompressing normal data.
[*] A demo ... instead of encoding a file.[/LIST] -
The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... the 'disciple_memswap' variable.
[/LIST]
Virtually all ... might be:
[LIST=1]
[*]Having disciple_active set ... ve seen do contain different data in various buffers, especially ... would be filled with data simply by loading the ... -
The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... Meg') floppy disks?
[/LIST]
[/QUOTE]Do you mean ... and store >800kiB of data on them?
If ... [QUOTE=zub;685088]
[LIST]
[*]Could the interface be ... compatibility with other peripherals?
[/LIST]
[/QUOTE]
If ... -
SAVE writing zeros after program?Hi there! I hope this is the right forum, but I didn't find any other more appropriate... I'm trying to recover some very old tapes with stuff I mad…
... to create the UDG data is in your program, ... contrived to embed the UDG data within the BASIC (ie. ... there anyway, as UDG data is not otherwise saved by ... the default location for UDG data starts at 65368, whereas ... , or just doing a LIST, should confirm that the ... -
LOAD "" By Deep GrassHello, just joined here. Been a Spectrum owner since '83, favourite game is Tir Na Nog. As part of a musical project called "Deep Grass" I recently…
... possible but the blue/yellow data part will run a little ... line is 256 above previous list.
Things to expect ... -
The best selling video games ever (with no stupid egg in boxing gloves in sight!)I thought that the following list is interesting (which shows you how interesting my job is, if this is what distracts me from it :-(), showing the b…
... feature heavily in such a list though...
edit: [URL ... there isn't an official list then
someone linked ... wiki article but no speccy data in there.
[url ... -
The best selling video games ever (with no stupid egg in boxing gloves in sight!)I thought that the following list is interesting (which shows you how interesting my job is, if this is what distracts me from it :-(), showing the b…
... I] is way up the list too. I was under ... so badly represented in the list.
[ ... s little or no sales data available so they tend to ... said, many games on this list include part of their ' ... + games packs, so the list is skewed that way too ... -
Coolest Issue4 board!Got my hands on this baby, with rare blue silk screen: [IMG]http://benophetinternet.nl/hobby/vanmezelf/20130314_165432.jpg[/IMG] [IMG]http://benoph…
... on JakeW's serial numbers data set to collect board colour ... for this one on the list. bverstee, do you have the ...
