From 0cc7838e1900b56c488231b2e3cebc874a661c22 Mon Sep 17 00:00:00 2001
From: riastradh <riastradh@NetBSD.org>
Date: Thu, 8 Nov 2018 18:19:37 +0000
Subject: [PATCH] Attempt to implement fabsf by copying fabs and s/d/f/g.

Vax wizards, please vaxinate if I flubbed this!
---
 lib/libc/arch/vax/gen/Makefile.inc |  4 +--
 lib/libc/arch/vax/gen/fabsf.S      | 45 ++++++++++++++++++++++++++++++
 2 files changed, 47 insertions(+), 2 deletions(-)
 create mode 100644 lib/libc/arch/vax/gen/fabsf.S

diff --git a/lib/libc/arch/vax/gen/Makefile.inc b/lib/libc/arch/vax/gen/Makefile.inc
index 224cb0ff27dc..c2a1136b5479 100644
--- a/lib/libc/arch/vax/gen/Makefile.inc
+++ b/lib/libc/arch/vax/gen/Makefile.inc
@@ -1,7 +1,7 @@
-#	$NetBSD: Makefile.inc,v 1.17 2010/07/06 05:59:52 mrg Exp $
+#	$NetBSD: Makefile.inc,v 1.18 2018/11/08 18:19:37 riastradh Exp $
 
 SRCS+=	byte_swap_2.S byte_swap_4.S bswap64.S \
-	fabs.S frexp.c \
+	fabs.S fabsf.S frexp.c \
 	fpclassifyf.c fpclassifyd.c \
 	infinityf.c infinity.c infinityl.c \
 	isfinitef.c isfinited.c \
diff --git a/lib/libc/arch/vax/gen/fabsf.S b/lib/libc/arch/vax/gen/fabsf.S
new file mode 100644
index 000000000000..87e9a1781cb8
--- /dev/null
+++ b/lib/libc/arch/vax/gen/fabsf.S
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 1983, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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. 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.
+ */
+
+#include "DEFS.h"
+
+#if defined(LIBC_SCCS) && !defined(lint)
+	/* .asciz "@(#)fabs.s	8.1 (Berkeley) 6/4/93" */
+RCSID("$NetBSD: fabsf.S,v 1.1 2018/11/08 18:19:37 riastradh Exp $")
+#endif /* LIBC_SCCS and not lint */
+
+/* fabsf - floating absolute value, float edition */
+
+ENTRY(fabsf, 0)
+	movf	4(%ap),%r0
+	bgeq	1f
+	mnegf	%r0,%r0
+1:
+	ret
+END(fabsf)