On 2010-08-05 01:42, Alan Carvalho de Assis wrote:
[...]
I found an interesting RTOS which could fit where Linux (uClinux) can
fit: deep embedded system (<100KB Flash,<2KB RAM).
You might also be interested in Prex:
http://prex.sourceforge.net/
It's a very elegant microkernel operating system, also BSD licensed.
It's bigger than NuttX but it will (optionally) support MMU. There's a
Posix layer that can be used to run userland programs complete with
fork() and vfork() (hardware allowing).
I recently ported it to the Cybiko to see what it was like. The Cybiko
is an H8-based device with 256kB flash and 256kB RAM; it ran fine, but
the developer shell was rather too big to be useful!
It really requires a 32-bit processor, but it may be possible to wedge
it into a 8088 given the right compiler in huge mode.
--
┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ─────
│
│ life←{ ↑1 ⍵∨.^3 4=+/,¯1 0 1∘.⊖¯1 0 1∘.⌽⊂⍵ }
│ --- Conway's Game Of Life, in one line of APL
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