[src/trunk]: src/common/lib/libc/arch/arm/quad Add a routine for __aeabi_uldi...

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/c3f25ff590e8
branches:  trunk
changeset: 780745:c3f25ff590e8
user:      matt <matt%NetBSD.org@localhost>
date:      Sun Aug 05 04:24:13 2012 +0000

description:
Add a routine for __aeabi_uldivmod which is just a wrapper around __qdivrem
but returns the 64-bit dividend and remainder in r0-r3.

diffstat:

 common/lib/libc/arch/arm/quad/__aeabi_uldivmod.S |  45 ++++++++++++++++++++++++
 1 files changed, 45 insertions(+), 0 deletions(-)

diffs (49 lines):

diff -r 707cedd269ed -r c3f25ff590e8 common/lib/libc/arch/arm/quad/__aeabi_uldivmod.S
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/common/lib/libc/arch/arm/quad/__aeabi_uldivmod.S  Sun Aug 05 04:24:13 2012 +0000
@@ -0,0 +1,45 @@
+/*-
+ * Copyright (c) 2012 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Matt Thomas of 3am Software Foundry.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <machine/asm.h>
+
+ENTRY(__aeabi_uldivmod)
+       push    {r4,lr}
+       sub     sp, sp, #8
+       mov     r4, sp
+       bl      PLT_SYM(__qdivrem)
+#ifdef _ARM_ARCH_DWORD_OK
+       ldrd    r2, [sp], #8
+#else
+       ldr     r2, [sp], #4
+       ldr     r3, [sp], #4
+#endif
+       pop     {r4,lr}
+       RET
+END(__aeabi_uldivmod)