The realtime operating system µPMOS is our solution for i80486 compatible CPUs. It is designed to exploit the very special capabilities of Protected Mode. Ultra compact, highly adaptable and completely object oriented by design, it also comes with an integrated class development system. This preview page gives a short overview of µPMOS' characteristics:

• Compact straightforward design, optimized for operation in Protected Mode of i80486 compatible CPUs
• Highly secure segment based memory management and support of 4-tier hardware protection mechanism for completely encapsulated kernel, driver, stack and application memory zones.
• Realtime aware preemptive multitasking with cooperative scheduling options and thread support.
• Ultra compact: complete OS distribution fits in a single 768K boot image.
• Real object oriented RTOS, objects are real secured constructs in memory not just representations of a programming language.
• Object hierarchy is dynamic by design, no static linking required.
• Objects are fully distributable accross processes on local systems and remotely over a network which allows for shared data processing and real multiprocessing.
• System class structure can be alternated during runtime without rebooting the system.
• Bus, file system, transport and security stack classes included in distribution.
• Support for µREXX programming language, a simplified but more precise dialect of the ObjectREXX language, allows easy programming of driver, stack and application classes.
• Integrated Development Environment: µREXX aware editor, interpreter, translator, assembler, packer and debugger embedded into OS make additional development tools obsolete.

Detailed information is being prepared for publication and available on this site soon.