This page provides a release based road map for the Babylon project. Each release is tagged in CVS with the tag RELEASE-X-YY where X is the major release number and YY is the minor release number.

Upcoming Releases

Our goal is to deliver a new release about every 10 days.

Release 0.05

• system call dispatch framework
• support for copy on write virtual memory segments
• low level disk support
• partial VFS implementation

Release 0.04

• preemptive kernel threads
• interrupts handled by threads
• rudimentary virtual memory mapping of physical memory

Completed Releases

Release 0.03

• working cooperative threads
• completed locks
• condition variables
• interrupt mask code
• atomic interrupt enable / disable
• improved in kernel debugging support
• initial support for accessing the clock

Release 0.02

• first-fit kernel memory allocator with FreeBSD style usage statistics collection
• first pass at interrupt enable / disable
• stub implementation of locking primitives
• int64_t and uint64_t support in stdint.h
• bug fixes
• more papers in the papers section

Release 0.01

• subset of ANSI C99 library in the kernel
• panic, KASSERT, and debug logging
• headers for mips assembler