#define CONTEXT_ADDR_FROM_STEM(stem) &context->uc_mcontext->__ss.__##stem
#else
#define CONTEXT_ADDR_FROM_STEM(stem) &context->uc_mcontext->ss.stem
#define CONTEXT_ADDR_FROM_STEM(stem) &context->uc_mcontext->__ss.__##stem
#else
#define CONTEXT_ADDR_FROM_STEM(stem) &context->uc_mcontext->ss.stem