---

3.20.34 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 ¶

-mno-cmov

Enable/disable generation of conditional move instructions.

-mext-perf ¶

-mno-ext-perf

Enable/disable generation of performance extension instructions.

-mext-perf2 ¶

-mno-ext-perf2

Enable/disable generation of performance extension 2 instructions.

-mext-string ¶

-mno-ext-string

Enable/disable generation of string extension instructions.

-mv3push ¶

-mno-v3push

Enable/disable generation of v3 push25/pop25 instructions.

-m16-bit ¶

-mno-16-bit

Enable/disable generation of 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 ¶

-mno-ctor-dtor

Enable/disable constructor/destructor feature.

-mrelax ¶

-mno-relax

Enable/disable linker option to relax instructions.