Current valid options are:
-1. *volatile* - specifying this is analogous to
+1. `volatile` - specifying this is analogous to
`__asm__ __volatile__ (...)` in gcc/clang.
-2. *alignstack* - certain instructions expect the stack to be
+2. `alignstack` - certain instructions expect the stack to be
aligned a certain way (i.e. SSE) and specifying this indicates to
the compiler to insert its usual stack alignment code
-3. *intel* - use intel syntax instead of the default AT&T.
+3. `intel` - use intel syntax instead of the default AT&T.
```rust
# #![feature(llvm_asm)]