|Contiki 2.4 binary release for Retrocomputing
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|Author:||Oliver [ Sat Aug 21, 2010 3:37 pm ]|
|Post subject:||Contiki 2.4 binary release for Retrocomputing|
I just released the 'Contiki 2.4 binary release for Retrocomputing'. It is available at
This release was built using cc65 2.13.2 from (modified) Contiki 2.4
sources. The orginal sources are available at
and the modifications at
Contiki 1.x integrated all programs into a common GUI as windows. Very cool but very complex to to write programs for. In fact there was never a Contiki 1.x GUI program which was not developed by the Contiki core team - and as the Contiki core team doesn't develop GUI programs anymore Contiki 1.x was sort of a deadend street.
So in order to ease development of 3rd-party Contiki program I modified Contiki 2.x to focus on individual standalone programs with a fullscreen GUI. This simplification significantly reduced the memory consumption thus allowing to replace custom "hacks" with generic cc65 components:
- C-library startup code
- Linker config file
- CONIO library
- Mouse driver
As a result Contiki 2.x contains only very little assembler coding and even less target-specific assembler coding. This allowed for easy porting to targets beside the C64 namely the C128 and Apple II. Porting to other cc65 targets wasn't done due to missing Ethernet hardware.
Contiki 2.4 is the first 2.x release to contain the following programs:
- dhcp client
- web server
- web browser
- smtp client
- irc client
- Twitter client
The Twitter client called BREADBOX64 proves that the Contiki 2.x approach was actual successful as it was independently developed by the 3rd-party developer Johan Van den Brande.
Another contribution to this release worthwhile mentioning is the CBM filesystem implemented by soci which is both very compact and includes fast IDE64 I/O support on the C64.
Beside lots of other improvement especially the following issues were fixed:
- Malfunctioning DNS lookup
- Missing PETSCII conversion for the smtp credentials
- Incorrect fixing of all disk I/O to drive 8
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