1 files changed, 102 insertions, 0 deletions
diff --git a/lib/libc/sparc64/gen/fixunsdfsi.S b/lib/libc/sparc64/gen/fixunsdfsi.S
new file mode 100644
index 000000000000..fde0583f1e06
--- /dev/null
+++ b/lib/libc/sparc64/gen/fixunsdfsi.S
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This software was developed by the Computer Systems Engineering group
+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+ * contributed to Berkeley.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * from: Header: fixunsdfsi.s,v 1.3 91/10/08 00:03:15 torek Exp
+ */
+
+#include <machine/asm.h>
+
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+	.asciz "@(#)fixunsdfsi.s	8.1 (Berkeley) 6/4/93"
+#else
+	RCSID("$NetBSD: fixunsdfsi.S,v 1.3 2000/07/25 04:26:12 mycroft Exp $")
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#if defined(SYSLIBC_RCS) && !defined(lint)
+	.text
+	.asciz "$FreeBSD$"
+#endif /* SYSLIBC_RCS and not lint */
+
+/*
+ * Convert double to unsigned integer (for gcc).
+ *
+ * I have made the output for NaN agree with the Sun compiler, not
+ * that it really matters, by using `fbul,a'.
+ */
+
+
+	.align	8
+.Lbig:
+	.word	0x43e00000		! .double 2^63
+	.word	0			! (who me, not trust the assembler?)
+
+/*
+ * Same as above but to unsigned long
+ */
+ENTRY(__dtoul)
+	PIC_PROLOGUE(%o4, %o5)
+	sub	%sp, 16, %sp
+	std	%f2, [%sp + CCFSZ + SPOFF + 8]
+	SET(.Lbig, %o5, %o3)
+	ldd	[%o3], %f2
+	fcmped	%f0, %f2		! d < 2^63, or NaN, or -Inf?
+	fbul,a	1f			! if so, use fdtox to convert to long
+	 fdtox	%f0, %f0		!        (this includes negatives!)
+
+	! d does not fit in a long, so subtract 2^63, convert,
+	! and add 2^63 again (sigh).  Just hope the intermediate
+	! fits (if not, the result is undefined anyway).
+
+	fsubd	%f0, %f2, %f0		! d -= 2^63
+	fdtox	%f0, %f0		! convert to long
+	std	%f0, [%sp + CCFSZ + SPOFF]	! move into return reg
+	ldx	[%sp + CCFSZ + SPOFF], %o0
+	sethi	%hi(0x80000000), %o1
+	sllx	%o1, 32, %o1
+	add	%o0, %o1, %o0		! add 2^63
+	ldd	[%sp + CCFSZ + SPOFF + 8], %f2
+	retl
+	 add	%sp, 16, %sp
+
+1:
+	std	%f0, [%sp + CCFSZ + SPOFF]	! return result
+	ldx	[%sp + CCFSZ + SPOFF], %o0
+	ldd	[%sp + CCFSZ + SPOFF + 8], %f2
+	retl
+	 add	%sp, 16, %sp
+END(__dtoul)