Re: GCC MSP430

There are three multilibs that are built:

430 - the "default" so it doesn't have a subdir - is for all non-430X processors.

430x - for 430X series processors, but still using 16-bit pointers.

430x/large - for 430X series processors using 20-bit pointers.


For each of those, newlib is built using a "common subset" so it works
for any (I hope) processor in that category.

GCC (msp430-elf-gcc, not mspgcc) has two options it looks at:

  -mmcu=<whatever> - if <whatever> has "430x" or "430X" in it, you get
   the 430x family.  Default is the 430 family.

  -mlarge - enables 20-bit pointers.

IIRC there's also -mcpu= which specifies the family (430/430x)
directly, for when the MCU name doesn't match the pattern.


Also, keep in mind that newlib is not targetted specifically to the
430's needs.  It's a generic runtime library so tends to be more "one
size fits all" than "one variant per chip" like mspgcc's library.

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