Dec 312016
 

Docent wrote a decompressor the the LZ4 compression algorithm, which can be used on any Zilog Z80 CPU. The focus of the LZ4 compression algorithm is a fast decompression speed and a small decompression routine. The size of Docents version of the decompression routine is 219 bytes (raw decompression routine under 110 bytes) and it supports the legacy and the newest LZ4 format (except for framing).
You can download the latest version of the decompression code here or at the end of this news.

Features

  • decompresses files packed by lz4 command line packer and raw lz4 compressed data
  • supports legacy and the newest lz4 file format (except framing)
  • fully relocatable code
  • total size of 219 bytes size with raw decompression routine below 110 bytes
  • cpc firmware friendly (no alternate register set used)
  • ROM friendly – no self modifying code or additional memory required
  • simple interface – only start of file in memory and target memory destination required

 

LZ4 Decompressor
LZ4 Decompressor
LZ4-Decompressor.zip
7.0 KiB
201 Downloads
Details
Nov 212016
 

Some time ago the Mojon Twins released their Amstrad CPC port of their game Sir Ababol 2 (you can download Sir Ababol here). In Sir Ababol 2 you have to guide the main character, Sir Ababol, to the top of the six towers of Freezia. Of course you have to fight against several enemies which you will meet on your way.

Sir Ababol 2 by the Mojon Twins

You can download Sir Ababol 2 from the Mojon Twins homepage or at the end of this posting. The source code for the game can be found there, too.

Sir Ababol 2 by the Mojon Twins - in game graphics

The game was developed with the Z88dk cross-compiler by using the PSG player by Wyz, the CPCRSlib by Artaburu and uses the Exomizer 2 compression library by MetalBrain.

Sir Ababol 2
Sir Ababol 2
mojon-twins-sir-ababol-2-CPC.zip
63.8 KiB
165 Downloads
Details
Sir Ababol 2 source code
Sir Ababol 2 source code
mojon-twins-sir-ababol-2-CPC-src.7z
737.8 KiB
437 Downloads
Details
Oct 272016
 

Kevin Thacker released new version of his cross-platform development tools CPCXfs and 2CDT. With CPCXfs you can transfer files between DSK images, which can be used in an emulator or to transfer files to the real Amstrad CPC, and your local file system. 2CDT is a similar tool, which is used to transfer files from your local file system intro a CDT cassette image. This can also be used in an emulator or transfered to the real machine. Both utilities are widely used for cross-platform development, e.g. with CPCtelera, to prepare your release.
You can download CPCXfs and 2CDT from the CPCWiki forums or at the end of this news. The source code is included in the ZIP archives of the release.

Changelog CPCXfs

  • Fixed errors shown with static analysis
  • CPCXfs will correctly set ERRORLEVEL command-line variable under more error conditions
  • Some other smaller bugfixes

Changelog 2CDT

  • You can define the sync byte for headerless
  • Command-line processing under windows and linux has been re-written. It is a lot better.
  • If you uses the mode with 2 blocks and you gave it a file which was shorter than a block it would not write it correctly. Now fixed.
  • When using pure tone it didn’t write the length of the ‘1’ pulse correctly
  • Some issues seen when running static analysis over the code.
2CDT
2CDT
2cdt-20161021.zip
95.0 KiB
296 Downloads
Details
CPCXfs
CPCXfs
cpcxfs-20161021.zip
485.0 KiB
268 Downloads
Details
Aug 042016
 

Rhino released a new graphics tool for the Amstrad CPC called Perfect Pix. Perfect Pix supports 3 different extended graphics modes with extended colours and resolutions:

  • Mode R
    • Up to 384×272 pixels and 16 freely selectable colors from a palette of 27.
  • Mode B0
    • Up to 192×272 pixels and 136 colors from a palette of 378.
  • Mode B1
    • Up to 384×272 pixels and 307 colors, divided into color 0 + up to 34 palettes of 9 colors per line.

Perfect Pix comes with an awesome documentation (english and spanish) and of course with the source code to use the pictures in your own production. If you need graphics for your next project, be sure to have a look at it. You can download the latest version from Pouet.net and the CPCWiki forums.

Perfect Pix by Rhin / Batman Group

v1.00

  • First release.

v1.01

  • Added message if upper memory is full by too many ROMs.

v1.02

  • Bug fixed in the converter exporting overscan screens.
  • More upper memory free for greater ROMs compatibility.

v1.03

  • Improved controls in Paint tool by adding CONTROL + keys to move the pointer to scroll the zoom window (similar to OCP Art Studio).
  • Added warning message in the converter when source image exceeds the image size limits managed with the Paint tool.
  • Additional upper memory free for greater ROMs compatibility.

 

Jul 142016
 

A new version of the SDCC C compiler is available. You can use SDCC to develop for the Amstrad CPC, e.g. with using the SDCC Code::Blocks template or the programming tutorials by Mochilote or with the new CPCtelera framework. The new version contains also some features for the Z80 port, so be sure to update it. You can download it from http://sdcc.sourceforge.net.

Changes:

  • Merged upstream binutils 2.25
  • New memory management with lower overhead
  • Changed default language dialect to –std-sdcc11
  • Diagnostic for missing type specifier: No implicit int outside of C90 mode anymore
  • C11 generic selections
  • char type is now unsigned by default (old behaviour can be restored using –fsigned-char)
  • Character constants are now of type int instead of char.
  • ISO C95 and ISO C11 wide character constants
  • ISO C95 and ISO C11 wide string literals
  • Basic standard library support for wide characters: c16rtomb(), mbrtoc16(), mbsinit(), mbtowc(), mbrlen(), mbrtoc32, c32rtomb(), mbrtowc(), wcrtomb(), mblen(), wctomb()
  • Treat all ports the same in the manual (i.e. mcs51-specific stuff is now clearly described as such)
  • Reorganized interrupt handling for z80, z180, r2k, r3ka, tlcs90, gbz80 backends
  • Workaround for stm8 division hardware bug
  • ELF/DWARF support for stm8
  • Output symbol table for ELF
  • pic16 port now uses standard-compliant crt0iz that initializes static and globals to 0 by default
  • Numerous feature requests and bug fixes

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