Remove the use of :@, it must not be used before 9 goes out of support.
Incidentally, simplify quite a bit, and fix build on 9.
Sponsored by: Absolight
In the copy of mednafen included in libretro-cores, replace a named
label in inline assembly in an inline function with a local label.
This prevents "invalid symbol redefinition" errors when the function is
inlined multiple times, for example within an unrolled loop.
Approved by: yuri@rawbw.com (maintainer)
PR: 206542