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Vincent Rivière
Atari ST Free Operating Systems
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Slides
The Atari ST was released in 1985, with a simple but efficient operating system: TOS. Later, a multitasking kernel named MiNT was adopted by Atari, and finally released as Free Software under the name FreeMiNT. GCC was ported to FreeMiNT and allowed to compile many other GNU software for the Atari platform. Emulators appeared in the '90s. As Atari TOS is still non-Free, independent developers created EmuTOS: a Free TOS clone based on open-sourced components. GCC was later upgraded to newer versions, and ready-to-use binaries of the cross-compiler were made available for Ubuntu, Cygwin, and more. This brought a new impulse to the platform. EmuTOS and FreeMiNT are still actively developed nowadays. They have been improved over the ages, and extended to support special features of emulators as well as extra hardware. They even support non-Atari hardware, such as Amiga and ColdFire processor. Moreover, development environment has been modernized to use GitHub facilities and Travis CI for automatic builds. This is a good example to see how modern tools can advantageously be used for development on old platforms.