The follow on posts describe where I plan to run the binaries. the idea is to run in a guest with no kernel and everything running at ring 0 that makes the sysret a dangerou thing to call. we don't have anything running at ring 3 also the syscall instruction clobber some registers all in all between the int3 and syscall instruction i counted around 20 extra instructions in my runtime. ( This is a guess me trying to figure what would happen). That is why the int3 becomes faster for what i am trying to build. The toolchain approach suffers from the diversity of options you have to support even if ignore stuff you guys encountered. Might be easier with llvm based things but still too many things to patch and the movement you tell people used my build environment it meets resistance. I am currently aiming for python which is easy to do. The JIT is when i want to do javascript which i keep pushing out because once i go down there i have to worry about threading as well. Something i want to chase but right now trying to get something working.