info gcc

These are the ‘-m’ options defined for the Motorola M*Core processors.

@gcctabopt -mhardlit
@gcctabopt -mno-hardlit: Inline constants into the code stream if it can be done in two instructions or less.
@gcctabopt -mdiv
@gcctabopt -mno-div: Use the divide instruction. (Enabled by default).
@gcctabopt -mrelax-immediate
@gcctabopt -mno-relax-immediate: Allow arbitrary sized immediates in bit operations.
@gcctabopt -mwide-bitfields
@gcctabopt -mno-wide-bitfields: Always treat bit-fields as int-sized.
@gcctabopt -m4byte-functions
@gcctabopt -mno-4byte-functions: Force all functions to be aligned to a four byte boundary.
@gcctabopt -mcallgraph-data
@gcctabopt -mno-callgraph-data: Emit callgraph information.
@gcctabopt -mslow-bytes
@gcctabopt -mno-slow-bytes: Prefer word access when reading byte quantities.
@gcctabopt -mlittle-endian
@gcctabopt -mbig-endian: Generate code for a little endian target.
@gcctabopt -m210
@gcctabopt -m340: Generate code for the 210 processor.