davidgiven

(Also, the source is now in https://github.com/EtchedPixels/FUZIXas the port's been accepted into the main Fuzix distribution.)

...I should point out that I just got pipes working. Even multistage ones! $ ls /bin/* | grep '^a' | wc ...works. It is, admittedly, not very fast, as it's swapping to disk as it switches between processes, but it works! Incidentally, does anyone have a fast DMA-based memcpy for the FR5969?

Good news, everyone! I've just ported Alan Cox's Fuzix to the MSP430. It'll run on a MSP430FR5969 and supports up to four 23kB user processes via swapping to an SD card. There's a full Unix filesystem and a tonne of software. It's riddled with bugs, but is surprisingly snappy and usable. This is running on a standard MSP430FR5969 Launchpad with the 43oh.com SD card boosterpack plugged into it. The console's via the USB UART. It's riddled with bugs, but there's enough running to be of interest. You can find the source code here: https://github.com/davidgiven/FUZIX/tree/msp430 Here is a somewhat edited transcript from my serial terminal to prove it. FUZIX version 0.1 Copyright (c) 1988-2002 by H.F.Bower, D.Braun, S.Nitschke, H.Peraza Copyright (c) 1997-2001 by Arcady Schekochikhin, Adriano C. R. da Cunha Copyright (c) 2013-2015 Will Sowerbutts <will@sowerbutts.com> Copyright (c) 2014-2015 Alan Cox <alan@etchedpixels.co.uk> Devboot 64kB total RAM, 23kB available to processes (4 processes max) Enabling interrupts ... ok. SD drive 0: hda: hda1 hda2 Mounting root fs (root_dev=1): OK Starting /init init version 0.9.0ac#1 # mount # df Filesystem Blocks Used Free %Used Mounted on df: cannot open /etc/mtab: No such file or directory # prtroot /dev/hda1 / fuzix rw # prtroot > /etc/mtab # df Filesystem Blocks Used Free %Used Mounted on /dev/hda1 20480 1218 18622 5% / # ls bin dev etc init tmp usr # cd tmp # cp /bin/sh data # ls -l -rwxr-xr-x 1 root 0 18111 Jan 01 00:03 data # cp data data2 # cat data data2 > big # ls -l -rw-rw-rw- 1 root 0 36222 Jan 01 00:04 big -rwxr-xr-x 1 root 0 18111 Jan 01 00:03 data -rwxr-xr-x 1 root 0 18111 Jan 01 00:04 data2 # rm data2 # rm data # wc big 1696 3086 36222 big # ls /bin > files # wc -l files 101 files # cd /bin # ls b* banner basename bd # banner Hello H H H H eeeeee l l oooo H H e l l o o HHHHHHH eeeee l l o o H H e l l o o H H e l l o o H H eeeeee llllll llllll oooo # ps USER PID STAT WCHAN ALARM COMMAND root 1 Ready 0000 0 init root 2 Ready 0000 0 /bin/sh root 12 Running 0000 0 ps # forth ok BYE # cd /usr/games # ls fish wump # ./fish instructions? yes `Go Fish' is a childrens' card game. (I would like to claim the record for the smallest physical hardware capable of beating me at Go Fish. Alas, Hunt the Wumpus doesn't run, for some reason.)