custom instruction or hw multiplier

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custom instruction or hw multiplier

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Hi,

The nios2-elf-gcc does have option -mhw-mul & -mhw-div

But how can I use them ? What custom instruction should I

define in SOPC ?

If I enable the HW-MUL in uClinux configuration, what will happen ?

RGDS,

YL Tsai

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