alpha_read_fp_c
frame.sf_sc.sc_fp_control = alpha_read_fp_c(l);
mcp->__fpregs.__fp_fpcr = alpha_read_fp_c(l);
args.fp_c = alpha_read_fp_c(l);
uint64_t alpha_read_fp_c(struct lwp *);
sigframe.uc.uc_mcontext.sc_fp_control = alpha_read_fp_c(l);
if (((fpflags = alpha_read_fp_c(l)) & IEEE_INHERIT) != 0) {