REX OS
 | This article needs to be updated. (May 2023) |
ARM | |
|---|---|
| Kernel type | Microkernel RTOS |
| License | Proprietary |
The REX Operating System (Real-time Executive Operating System) is a
REX is a combination of two operating systems: L4Ka::Pistachio embedded microkernel and Iguana, with extensive modifications and extensions by Qualcomm and HTC.[2]
Originally developed for the
It seems not to be actively developed or marketed as of 2012, but is used in currently or recently sold low end cell phones, typically for use by pay-as-you-go customers, like the Samsung SPH-M300.
Features
REX is an RTOS with the following features:
- Preemptive multitasking
- Task management
- Task synchronization
- Exclusive lock
- Timer
- Interrupt management
- Uses less than 5K of ROM[1]
REX provides no memory protection features but does have memory management abilities.
References
- ^ a b c "REX and Common Software". Retrieved 2012-03-10.
- ^ Edgewall Software. "HTC Vision". Retrieved 2012-03-12.
- ^ Asif, Saad Zaman (2011-01-11). Next Generation Mobile Communications Ecosystem: Technology Management for Mobile Communications. John Wiley and Sons. p. 299.
External links
- Iguana Archived 2006-04-26 at the Wayback Machine
- L4 Based Operating Systems Archived 2018-06-14 at the Wayback Machine
- NICTA L4-embedded Kernel Archived 2014-02-27 at the Wayback Machine
- Qualcomm Corporate Site
Real-time operating systems (RTOS) | |||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Operating systems |
| ||||||||||||||||||||||||||||||||||
| Frameworks, kits | |||||||||||||||||||||||||||||||||||
| Developers | |||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||
| Kernels |
| ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Operating systems |
| ||||||||||||||||||||||||
| Frameworks, kits | |||||||||||||||||||||||||
| Developers | |||||||||||||||||||||||||
| |||||||||||||||||||||||||
 | This operating-system-related article is a stub. You can help Wikipedia by expanding it. |
 | This mobile software article is a stub. You can help Wikipedia by expanding it. |