• State Accepted Answer
  • Locked Locked
  • Replies 7 replies
  • Subscribers 9 subscribers
  • Views 12253 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Which definition is right for "ne10_addc_float_c"?

Robert

Hi,

On a Get Start thread of this web site, it has a short NE10 example having such snippet:

      ne10_addc_float_c( thedst1 , thesrc, thecst, ARRAY_LENGTH );
 
      ne10_addc_float_neon( thedst2 , thesrc, thecst, ARRAY_LENGTH );

I install NE10 library. In the documentation, it has a different definition:

ne10_result_t ne10_addc_float_neon (ne10_float32_t *dst, ne10_float32_t *src, const ne10_float32_t cst, ne10_uint32_t count) asm("ne10_addc_float_neon")

I am curious about the last "asm("ne10_addc_float_neon")". Could you tell me that?

Thanks,

Parents
  • 0 Arm Employee Badge

    Hi, Ruwan2,

    >Hi,

    >On a Get Start thread of this web site, it has a short NE10 example having such snippet:

    >     ne10_addc_float_c( thedst1 , thesrc, thecst, ARRAY_LENGTH );
    >
    >     ne10_addc_float_neon( thedst2 , thesrc, thecst, ARRAY_LENGTH );

    These 2 functions are different functions, but they have same functionality. Generally, the difference is: ne10_addc_float_c is implemented in C and ne10_addc_float_neon is implemented by assembly and optimized by Neon.

    >

    >I install NE10 library. In the documentation, it has a different definition:

    >

    >ne10_result_t ne10_addc_float_neon (ne10_float32_t *dst, ne10_float32_t *src, const ne10_float32_t cst, ne10_uint32_t count) asm("ne10_addc_float_neon")

    >

    >I am curious about the last "asm("ne10_addc_float_neon")". Could you tell me that?

    the asm() key word is used to specify the name in generated object file. It is a C extension. You can refer more details at http://gcc.gnu.org/onlinedocs/gcc-4.8.2/gcc/Asm-Labels.html#Asm-Labels.

    >Thanks,

Reply
  • 0 Arm Employee Badge

    Hi, Ruwan2,

    >Hi,

    >On a Get Start thread of this web site, it has a short NE10 example having such snippet:

    >     ne10_addc_float_c( thedst1 , thesrc, thecst, ARRAY_LENGTH );
    >
    >     ne10_addc_float_neon( thedst2 , thesrc, thecst, ARRAY_LENGTH );

    These 2 functions are different functions, but they have same functionality. Generally, the difference is: ne10_addc_float_c is implemented in C and ne10_addc_float_neon is implemented by assembly and optimized by Neon.

    >

    >I install NE10 library. In the documentation, it has a different definition:

    >

    >ne10_result_t ne10_addc_float_neon (ne10_float32_t *dst, ne10_float32_t *src, const ne10_float32_t cst, ne10_uint32_t count) asm("ne10_addc_float_neon")

    >

    >I am curious about the last "asm("ne10_addc_float_neon")". Could you tell me that?

    the asm() key word is used to specify the name in generated object file. It is a C extension. You can refer more details at http://gcc.gnu.org/onlinedocs/gcc-4.8.2/gcc/Asm-Labels.html#Asm-Labels.

    >Thanks,

Children
No data