[jhc] [patch] New RTS for tiny CPU

Hi John. I think the patch is useful to run Haskell code on tiny CPU and small memory size. Github link is below. https://github.com/ajhc/ajhc/commit/3167551530b0576cf1f42f928865868ce9aa0b50 The changes are... 1. Control BLOCK_SIZE and MEGABLOCK_SIZE from Makefile. 2. Do not allocate MEGABLOCK dynamically. 3. Set function pointer's bit0 for Cortex-M3. http://communities.mentor.com/community/cs/archives/arm-gnu/msg01904.html 4. Naive GC flag to run GC when no blocks. 5. Control stack_grow size. Example of usage is found at https://github.com/ajhc/demo-cortex-m3. Best regards, -- Kiwamu Okabe