alpha_read_fpcr
alpha_write_fpcr(fp_c_to_fpcr_1(alpha_read_fpcr(), l->l_md.md_flags));
orig_fpcr = fpcr = alpha_read_fpcr();
a0, a1, alpha_read_fpcr(),
uint64_t orig_fpcr = alpha_read_fpcr();
uint64_t alpha_read_fpcr(void); /* MAGIC */
#define fpgetround() (alpha_read_fpcr() >> 58 & 3)
sigframe.uc.uc_mcontext.sc_fpcr = alpha_read_fpcr();
uint64_t alpha_read_fpcr(void);