usr/src/lib/libc/hp300/gen/frexp.s

/*-
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
        .asciz "@(#)frexp.s     5.1 (Berkeley) %G%"
#endif /* LIBC_SCCS and not lint */

#include "DEFS.h"

/*
 * double frexp(val, eptr)
 * returns: x s.t. val = x * (2 ** n), with n stored in *eptr
 */
ENTRY(frexp)
        fmoved          sp@(4),fp1
        fgetmanx        fp1,fp0
        fgetexpx        fp1
        fmovel          fp1,d0
        addql           #1,d0
        movel           sp@(12),a0
        movel           d0,a0@
        fdivl           #2,fp0
        fmoved          fp0,sp@-
        movel           sp@+,d0
        movel           sp@+,d1
        rts