I had to use a bit of assembly recently and chose nasm for it. A client had an o...

I had to use a bit of assembly recently and chose nasm for it. A client had an older piece of compiled code and wanted to be able to use it on a modern machine. It was written in a propriety language and compiled for a 32bit system. The argument passing conventions used by the compiler were unusual. So I wrote a bit of assembly in nasm to create a stub function callable from C, it was really just moving things into the right registers and some bits to the stack. So nothing really being done in the asm. The hard part was figuring out the calling convention.

Edit: Looking back it turns out that "recently" was 18 months ago.