SIMD macro assembler unified for ARM, MIPS, PPC and x86
RTOS for Secure, Safe and Real-Time Systems
Real-Time Embedded Operating System
Helps you to Boot your Experimental Assembly Language programs
An operating system for tenputer
My own operating system.
An open source OS written in assembly.
Oso32 es un diminuto sistema operativo para fines didácticos
operating system for Intel 8086 / 8088
Danja Operating System
Small 32-bits operating system
Mayax is a 32-bit hobby OS with windows style GUI.
PrimOS is a 32bit multi-task OS, which is still under development.