Daniel Yek <dyek@xxxxxxxx> writes: > I would like to find out if it is a good idea to utilize GCC's > .intel_syntax Inline Assembly support (for non-trivial blocks), or to > convert them to GAS or NASM assembly functions, .S files. For a complete function written in assembly code, you might as well put it in a .s or .S file. You can put it in a .c file using a simple asm if that is is more convenient for you. It doesn't make any big difference. > Is there a way I can use the memory constraint, "m", effectively in > .intel_syntax Inline Assembly? Use the -masm=intel option with gcc. > (3) Is there any document providing information how I can create a > single version of assembly code (Inline Assembly or pure assembly) and > have it compiled with or without -fPIC correctly? I don't know of any document. The basic guideline is fairly obvious: don't use %ebx. If you must use it, push and pop it in your assembly code. Ian