Multicompiler support for Inline Asm (x86)

Question

For inline asm code I use __asm for vc++ compiler and __asm__() or asm() construct for gcc under linux. (intel/at&t syntax accordingly)

Is there a way to declare inline assembly (x86) in C for them both in a universal way?

P.S. An automated tool for incorporating both is also acceptable.

Assembler in source file has always been a compiler specific extension. — Some programmer dude
The simple answer is no. A solution would be to put the assembly code in a macro and #ifdef it for each platform. — Neil
At that point it becomes easier to use YASM and link the asm code in separately. It wouldn't be inline, but it would work with GCC, MSVC, and others. — harold
Not without an assembler library or an external tool. You could use machine code, though, like here. — Alexey Frunze

Neil Neil · Accepted Answer · 2012-09-03T13:28:49

Put the assembly in a macro and use the pre-processor to make the correct code.

#ifdef GCC
#define MY_ASM_CODE __asm() { blah blah blah}
#endif

#ifdef MSVC
#define MY_ASM_CODE __asm { blah blah blah }
#endif

int main(void)
{
  MY_ASM_CODE;
  return 0;
}

Multicompiler support for Inline Asm (x86)

2 Answers