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https://github.com/alexanderbazhenoff/zx-spectrum-various-sources

Various ZX-Spectrum assembler sources.
https://github.com/alexanderbazhenoff/zx-spectrum-various-sources

8bit 8bit-computers demoscene retrocomputing zx-spectrum

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Various ZX-Spectrum assembler sources.

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# zx-spectrum various sources



Lots of my various ZX-Spectrum assembler sources. Some of them written in the end of 90s, so I can't remember them all.

Here is some my handmade tools and converters, which nowadays usually making on python etc. Others are loaders, screen

output routines and patches, so you can find a 'game poke' or another tips. Unfinished sources also.



## TLDR



These sources are for Zilog Z80 Assembler in Alasm format. You should import and compile this source in

[Alasm](https://zxart.ee/rus/soft/tool/music/pro-tracker-alasm/qid:365628/) ZX-Spectrum assembler

[(I have used v5.08)](https://speccy.info/ALASM) to compile. Or convert this source manually for 

[SjASMPlus](http://speccy.info/SjASMPlus) which is cross-platform.



## Preamble



Since a school days in 90s I was totally passioned by 8-bit `demoscene` culture. A specially crack releases where all

these wonderful effects first time came from. In the begging I was too lazy. So I watched and debug some stuff to see a

code tricks using hardware `shadow monitor` on my [`Scorpion ZS-256`](https://en.wikipedia.org/wiki/Scorpion_ZS-256), a

Sergery Zonov's ZX-Spectrum Russian clone. Later I moved to a Russian demoscene classic ZX-Spectrum clone, 

[`Pentagon 128`](https://en.wikipedia.org/wiki/Pentagon_(computer)) and these all started.



In the end of 90s I was inspired to made not also a [`crack intro`](https://www.youtube.com/watch?v=OU9Jh86ISqQ), just

would love to fix firm bugs, performance, add TR-DOS save/load, exam some history of game making and all these stuff. In

those days cracking games on ZX-Spectrum mostly went to the past, but still here was some revers-research. And yes,

Russian users had their specific disk systems, so you need to adapt them from time to time. If you look on ZX-Spectrum

archive you'll find a various TR-DOS versions of the same game from different crack teams. The reason is only in making

this better than another guys, as `the scene tradition`.



So until the middle 2005 more than 50 crack releases came. Some of them was with an intros, some of them just with sign,

but fixed, packed, etc.



## Folder contents in short



- [**tools**](tools): file compare tools, 

[`RLE packing`](https://github.com/alexanderbazhenoff/zx-spectrum-various/blob/main/tools/rle_pack.asm)

(Run-length encoding) for huge code blocks, [`DCpack`](tools/dcpack) (delta packing tool), various converters, tr-dos

and tape save/load routines. Especially

[`Data Glue Utility`](https://zxart.ee/rus/soft/tool/io-handling/diskovye-utility/data-glue-utility/qid:366462/) which 

allows you to decrease end-of-sector spaces on the disk and move data after loading. 



![Data Glue](https://zxart.ee/zxscreen/type:standard/id:392818/zoom:1/filename:image.png)



Also [`nfo viewer`](tools/info_viewer), a text info viewer with two-bitplan colours (25fps colour mixing like

[`gigascreen`](https://speccy.info/Gigascreen), a ZX-Spectrum software screen mode).

[`nfo viewer`](https://zxart.ee/rus/soft/demoscene/nfo-viewer/) was done, but wasn't ever released.



![Nfo Viewer](https://zxart.ee/image/type:prodImage/id:273669/filename:nfoview.png)



- [**unfinished**](unfinished): unfinished cracktros: first one with two-bitplan colours (again my fav 25fps colour

mixing), another is [`sunshine cracktro`](unfinished/sunshine_cracktro) which was almost done, but never released.



![Sunshine cracktro](https://zxart.ee/zxscreen/border:7/mode:mix/pal:srgb/type:gigascreen/zoom:1/id:195010/)



- [**loaders, patches, screen output routines, etc**](loaders_patches_etc): mini cracktros, tittle screen and logos

output routines (liquid alike, plasm-style, with ZX-Spectrum border interaction), tittle screen fadeout routines,

trainer modes (some exclusive *'game pokes'* are placed in init patches found by me), methods how to initialize tr-dos

variables when #5b00...#6000 memory was used by data (check [`save/load patches`](loaders_patches_etc)), etc. Also 

`Lamergy #0`, [`Lamergy X-Mas`](https://vtrd.in/release.php?r=30fb060eda1ec8eb68e3cade38fbf9e9) and 

[`Lamergy Kids`](https://vtrd.in/release.php?r=2bb45ef330a7fc973a847d41f9a62d70) (a humor scene-magazine): routines,

intros, etc...



## Detailed folder contents



Browse folders for README(s) or read traditional [`files.bbs`](files.bbs).



## Related URLs



- [brainwave cracktro v1 sources](https://github.com/alexanderbazhenoff/brainwave-cracktro-v1)

- [brainwave cracktro v2 sources](https://github.com/alexanderbazhenoff/brainwave-cracktro-v2)

- [stripped 512b intro sources](https://github.com/alexanderbazhenoff/stripped-512-bytes-inro)

- [Virtue Da Dirty Soul Intro sources](https://github.com/alexanderbazhenoff/virtue-da-dirty-soul-intro)

- [zxart.ee archive](https://zxart.ee/rus/avtory/a/alx/)