Hello Jeremy,
Jeremy Apthorp wrote:
Next year I'll be working on a project for my undergraduate computing
course at UNSW that will involve getting GHC to target the Nintendo
DS. It'll require cross-compilation, because the DS isn't powerful
enough to actually run GHC (4M main ram and a 66MHz processor). It'll
also require that I significantly strip down the runtime system, as
the current RTS won't fit in 4M and leave any left over for the main
application.
Maybe one of these would help (running Linux) ..
http://www.iyonix.com/
It'd be good too have a native code generator support for ARM (not via
C). Many years ago I tinkered with implementing a lazy FPL on ARM (on my
Acorn Risc PC). I never even started the compiler but got a basic single
threaded RTS and mark-sweep-compact garbage collector up and running
(written in ARM assembler).
It wasn't really useable for real programs though as I had to write my
function definitions as comments and actually implement the graph
reduction code by hand in assembler :-)
But I remember the ARM instruction set had some really useful features
that made things like checking for stack-heap collision cheap and if you
got the register allocation right (which is not hard on the ARM) you
could construct the overwhelming majority of heap records using a single
STMIA instruction. Almost seemed like it's instruction set was
designed for efficient FPL implementation :-)
Regards
--
Adrian Hey
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