Hi, 2008/11/18 Werner Almesberger <[EMAIL PROTECTED]>: > This is a discussion that started on an internal list but that really > ought to be public. So I'm dragging it here, kicking and screaming ... > > In GTA03, we'll use the following controller chip for some LEDs: > http://www.national.com/pf/LP/LP5521.html > > One thing that's interesting about it is that it can be programmed > in some form of primitive assembler language. National magnificently > call the tool to translate this language to its binary representation > a "compiler". > > There's been concern about whether National would give us the right > to redistribute their Windows-based compiler. However, since the > translation task seems to be more than trivial, I think we're better > off just rewriting the thing from scratch. > > To make a nice parser in little time, lex and yacc are useful. Here's > an example using them: > http://svn.openmoko.org/developers/werner/greg/ > > The above example also shows how one can easily add cpp to one's > parser. That way, the usual convenience items (comments, macros, and > include files) are taken care of. > > Some people have suggested that the translator is so simple that one > should even put it into the kernel ...
linux-omap-2.6 people thought so and made a very simple interface for programming the lp5521 where the compilation is left to be done in user's head. It's described in this mail: http://markmail.org/message/nbfweohulpjd5fx2 Obviously it's very limited compared to your compiler, I find the compiler very cool. (Is it turing complete? ( - assuming that cpp isn't)) Their driver is at http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap-2.6.git;a=blob;f=drivers/i2c/chips/lp5521.c;h=c0862d9f2690f0f0daa38f21659aed7011dff175;hb=HEAD , I don't know if you planned to use it. Cheers _______________________________________________ hardware mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/hardware
