3.18.31 NDS32 Options

These options are defined for NDS32 implementations:

-mbig-endian
Generate code in big-endian mode.
-mlittle-endian
Generate code in little-endian mode.
-mreduced-regs
Use reduced-set registers for register allocation.
-mfull-regs
Use full-set registers for register allocation.
-mcmov
Generate conditional move instructions.
-mno-cmov
Do not generate conditional move instructions.
-mperf-ext
Generate performance extension instructions.
-mno-perf-ext
Do not generate performance extension instructions.
-mv3push
Generate v3 push25/pop25 instructions.
-mno-v3push
Do not generate v3 push25/pop25 instructions.
-m16-bit
Generate 16-bit instructions.
-mno-16-bit
Do not generate 16-bit instructions.
-misr-vector-size= num
Specify the size of each interrupt vector, which must be 4 or 16.
-mcache-block-size= num
Specify the size of each cache block, which must be a power of 2 between 4 and 512.
-march= arch
Specify the name of the target architecture.
-mcmodel= code-model
Set the code model to one of
small
All the data and read-only data segments must be within 512KB addressing space. The text segment must be within 16MB addressing space.
medium
The data segment must be within 512KB while the read-only data segment can be within 4GB addressing space. The text segment should be still within 16MB addressing space.
large
All the text and data segments can be within 4GB addressing space.

-mctor-dtor
Enable constructor/destructor feature.
-mrelax
Guide linker to relax instructions.