asm inline function

asdfgh · Post by **asdfgh** » Sat May 10, 2008 9:57 am

wat is the asm inline function in c for poping value from stack and storing it in a variable

JamesM · Post by **JamesM** » Sat May 10, 2008 11:23 am

Have you googled it? Have you read the manual?

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asm volatile("pop %0" : "=r" (my_value))

DeletedAccount · Post by **DeletedAccount** » Wed May 14, 2008 8:14 pm

I however hate gcc inline assembly , write a separate .asm or .s and link it ...

Brynet-Inc · Post by **Brynet-Inc** » Wed May 14, 2008 9:54 pm

SandeepMathew wrote:I however hate gcc inline assembly , write a separate .asm or .s and link it ...

You might, however, not everyone agrees with you.

I sure don't, 99.9% of the time.

piranha · Post by **piranha** » Wed May 14, 2008 11:30 pm

Inline assembly can be annoying, but it makes the code better (in my opinion) because I don't have to load 2 files to look at one function.

I like it better than normal assembly.

-JL

svdmeer · Post by **svdmeer** » Thu May 15, 2008 2:04 pm

For just one or two instructions, inline assembly is imho better.
A seperate file is "too much" for such tiny things.

Korona · Post by **Korona** » Thu May 15, 2008 2:14 pm

Inline assembly integrates better into the c code. There are no unnecessary register spills and there is no function prologue / epilogue overhead if the inline assembly instructions can be inlined.