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Altera_Forum's avatar
Altera_Forum
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16 years ago

questions about builtin Functions

hi.i need some information about builtin Functions,is there any online resources available? And where to find?thank you so much to provide me with a web page link:)

4 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    13 years ago

    I am also looking information about builtin functions such as __builtin_rdctl, which seems to me like a wrapper function from assembly makro rdctl to C code. Actualy I wonder if they are defined in a file, I couldn't find the definiton or any related document about it.

    Also would it be a problem if I redefine it in my projects?
  • Altera_Forum's avatar
    Altera_Forum
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    13 years ago

    They are defined in the C sources for gcc, writing asm macros for them is a SMOP (and understanding the gcc asm statement rules).