These options are defined specifically for the CR16 ports.
-mmac-mcr16cplus-mcr16c-msim-mint32-mbit-opssbit/cbit instructions for bit manipulations. -mdata-model=model
near’, ‘far’ or ‘medium’. ‘medium’ is default. However, ‘far’ is not valid with -mcr16c, as the CR16C architecture does not support the far data model.
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Licensed under the GNU Free Documentation License, Version 1.3.
https://gcc.gnu.org/onlinedocs/gcc-6.3.0/gcc/CR16-Options.html