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3.17.23 MCore Options
These are the ‘-m’ options defined for the Motorola M*Core processors.
-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
int-sized. -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.
-mno-lsim-
Assume that runtime support has been provided and so omit the simulator library (‘libsim.a)’ from the linker command line.
-mstack-increment=size-
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.
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