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Implemented Features
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The following is a short list of implemented design features that you'd expect on a modern operating system:
Multithreaded
Multiprocessor
Strict architecture-independance layer to allow clean porting to multiple cpu architectures
Fully reentrant kernel
Protected memory
Separate user and kernel space, multiple address spaces
Full locking primitives
Kernel debugging support with installable debugger commands and remote gdb support
Modern VM design (demand paging, swapping, memory mapping), with support for full filesystem cache integration
Dynamically loadable kernel modules: drivers, filesystems, generic modules
Full virtual filesystem layer, device file system
Initial support for iso9660, nfs, ext2fs filesystems
Full user space shared lib support
Kernel based network stack (full TCP/IP)
Remote block device
Basic VESA mode support with generic framebuffer console
Text-based console
TTY
Shell with scripting support
POSIX signals
process groups, session groups
Network cards: Realtek 8139, AMD PCNet32
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In-Progress Features
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Native FS
Full IDE/ATAPI stack
Full libc implementation
Graphics driver architecture
GUI
USB
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Planned Features
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Self hosting (requires more POSIX)
Anything anyone has the time for!
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Current Ports
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The system currently can be built to run on the follwing systems:
Intel IA-32 (x86) - Tested on desktops through 4-way servers
Sega Dreamcast - Hitachi SH-4
PPC based machines - G3/G4 Macs, Pegasos
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Planned Ports
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Many ports of the system are waiting to happen when we get the time
(hardware is purchased, documents have been found, just need to dedicate a few weeks):
ARM dev board - TI OMAP based dev board
Sun Blade 100 - UltraSPARC IIe in 64-bit mode
NeXT B&W slab - Motorola 68040 based
SGI Indy - MIPS R5000 based Indy in 32- and 64-bit mode
DEC Multia - Alpha 21064
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Copyright © 2001-2005, Travis Geiselbrecht. All rights reserved.
Any question, comments, gripes, whatever: geist@newos.org.
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