These are the
-m options defined for the Motorola M*Core
- -mhardlit, -mno-hardlit#
Inline constants into the code stream if it can be done in two instructions or less.
- -mdiv, -mno-div#
Use the divide instruction. (Enabled by default).
- -mrelax-immediate, -mno-relax-immediate#
Allow arbitrary-sized immediates in bit operations.
- -mwide-bitfields, -mno-wide-bitfields#
Always treat bit-fields as
- -m4byte-functions, -mno-4byte-functions#
Force all functions to be aligned to a 4-byte boundary.
- -mcallgraph-data, -mno-callgraph-data#
Emit callgraph information.
- -mslow-bytes, -mno-slow-bytes#
Prefer word access when reading byte quantities.
- -mlittle-endian, -mbig-endian#
Generate code for a little-endian target.
- -m210, -m340#
Generate code for the 210 processor.
Assume that runtime support has been provided and so omit the simulator library (
libsim.a)from the linker command line.
Set the maximum amount for a single stack increment operation. Large values can increase the speed of programs that contain functions that need a large amount of stack space, but they can also trigger a segmentation fault if the stack is extended too much. The default value is 0x1000.