RIOT-OS/RIOT — pull request #881 by rousselk (2014-03-13 11:09:57+00:00)
Title: Ensure that stack pointer is correctly aligned during thread creation on MSP430

I encountered an error on my beta Z1 port during _enter_ISR(), because of an odd (mis-aligned SP register).

When debugging, I noticed the lack of a correct check for misalignment during thread creation on MSP430. This is my proposed correction.