http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59672 --- Comment #7 from H.J. Lu <hjl.tools at gmail dot com> --- I put the initial -m16 support on hjl/x86/m16 branch at: http://gcc.gnu.org/git/?p=gcc.git;a=summary We need to add some run-time testcases and fix any bugs.