The RISC OS Open community has released the RISC OS 5.30 operating system, optimized for creating embedded solutions based on ARM processor boards. This release is based on the source texts of RISC OS, which were open-sourced in 2018 by RISC OS Developments (ROD) under the Apache 2.0 license. RISC OS builds have been created for Raspberry Pi, PineA64, BeagleBoard, Iyonix, PandaBoard, Wandboard, RiscPC / A7000, OMAP 5, and Titanium. The build size for Raspberry Pi is 157 MB.
RISC OS has been evolving since 1987 and is primarily focused on creating specialized embedded solutions based on ARM platforms that ensure maximum performance. The OS does not support preemptive multitasking (only cooperative multitasking) and is single-user (all users have superuser rights). The system consists of a kernel and extension modules, including a module with a simple window graphical interface and a set of simple applications. Cooperative multitasking is used in the graphical environment. NetSurf is utilized as the web browser.
In the new release:
- Support for the OMAP5 platform has been transitioned to stable status, having previously faced issues with the video driver that delayed the creation of its first stable release.
- Full support for the SparkFS file system with read and write capabilities has been implemented for all platforms.
- The RISC OS edition for Raspberry Pi boards has been updated. Wi-Fi support has been implemented for Raspberry Pi 3B, 3A+, 3B+, 4B, 400, Compute Module 4, Zero W, and Zero 2W. The build includes the Ovation Pro publishing package. Introductory instructions have been improved for newcomers unfamiliar with RISC OS.
- The application collection has been updated, including a new release of the NetSurf browser 3.11.
- Testing within the continuous integration system has been initiated for components Alarm, ShellCLI, FileSwitch, DOSFS, SDFS, FPEmulator, AsmUtils, OSLib, RISC_OSLib, TCPIPLibs, mbedTLS, remotedb, Freeway, Net, AcornSSL, HTTP, URL, Dialler, PPP, NetTime, OmniClient, LanManFS, OmniNFS, FrontEnd, HostFS, Squash, and !Internet.
- Support for Internet 4, the old TCP/IP stack used until RISC OS version 3.70, has been discontinued in the components Freeway, Net, HTTP, URL, PPP, NFS, NetTime, OmniClient, LanManFS, OmniNFS, !Boot, !Internet, TCPIPLibs, and remotedb, significantly simplifying their maintenance.
- SharedCLibrary now includes support for hooks to use static constructors and destructors in C++ code, which has expanded support for high-level programming languages.
- A new EtherUSB driver has been added for Raspberry Pi, Beagleboard, and Pandaboard boards to enable the use of Ethernet adapters with USB interface.
- The HAL (hardware abstraction layer) now supports the built-in Wi-Fi controller for Pandaboard and Raspberry Pi boards using the SDIO bus.
- The !Draw application now supports DXF file format.
- The !Paint application has added the ability to export images in PNG and JPG formats. Brush drawing capabilities have been improved. Transparency support has been added.
- The WimpMan module is enabled by default, simplifying the development of desktop applications.
- The window manager now allows configuring the color and shadows of buttons, as well as changing the panel background.
- The Tabs and TreeView gadgets are enabled by default.
- The Filer file manager now allows configuration of the visibility of system directories.
- The maximum size of the RAM disk has been increased to 2 GB.
- The TCP/IP stack libraries have been partially updated using code from FreeBSD 12.4. The maximum number of network sockets that a single application can open has increased from 96 to 256.
- The HTTP module has significantly improved cookie handling.
- The RMFind utility has been added to check TCP/IP interaction support.
- Support for the obsolete Xeros NS protocol has been discontinued.
Source: opennet.ru
