From 11da511c784eca003deb90c23570f0873954e0de Mon Sep 17 00:00:00 2001
From: Duncan Wilkie <antigravityd@gmail.com>
Date: Sat, 18 Nov 2023 06:11:09 -0600
Subject: Initial commit.

---
 gmp-6.3.0/mpn/x86_64/bt1/copyd.asm | 91 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 gmp-6.3.0/mpn/x86_64/bt1/copyd.asm

(limited to 'gmp-6.3.0/mpn/x86_64/bt1/copyd.asm')

diff --git a/gmp-6.3.0/mpn/x86_64/bt1/copyd.asm b/gmp-6.3.0/mpn/x86_64/bt1/copyd.asm
new file mode 100644
index 0000000..877714e
--- /dev/null
+++ b/gmp-6.3.0/mpn/x86_64/bt1/copyd.asm
@@ -0,0 +1,91 @@
+dnl  AMD64 mpn_copyd optimised for AMD bobcat.
+
+dnl  Copyright 2003, 2005, 2007, 2011, 2012 Free Software Foundation, Inc.
+
+dnl  This file is part of the GNU MP Library.
+dnl
+dnl  The GNU MP Library is free software; you can redistribute it and/or modify
+dnl  it under the terms of either:
+dnl
+dnl    * the GNU Lesser General Public License as published by the Free
+dnl      Software Foundation; either version 3 of the License, or (at your
+dnl      option) any later version.
+dnl
+dnl  or
+dnl
+dnl    * the GNU General Public License as published by the Free Software
+dnl      Foundation; either version 2 of the License, or (at your option) any
+dnl      later version.
+dnl
+dnl  or both in parallel, as here.
+dnl
+dnl  The GNU MP Library is distributed in the hope that it will be useful, but
+dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+dnl  for more details.
+dnl
+dnl  You should have received copies of the GNU General Public License and the
+dnl  GNU Lesser General Public License along with the GNU MP Library.  If not,
+dnl  see https://www.gnu.org/licenses/.
+
+include(`../config.m4')
+
+C	     cycles/limb
+C AMD K8,K9	 1
+C AMD K10	 1-2  (alignment fluctuations)
+C AMD bd1	 ?
+C AMD bobcat	 1.5
+C Intel P4	 2.8
+C Intel core2	 1
+C Intel NHM	 1-1.25
+C Intel SBR	 1
+C Intel atom	 2.87
+C VIA nano	 2
+
+C INPUT PARAMETERS
+C rp	rdi
+C up	rsi
+C n	rdx
+
+define(`rp',`%rdi')
+define(`up',`%rsi')
+define(`n',`%rdx')
+
+ABI_SUPPORT(DOS64)
+ABI_SUPPORT(STD64)
+
+ASM_START()
+	TEXT
+	ALIGN(16)
+PROLOGUE(mpn_copyd)
+	FUNC_ENTRY(3)
+	sub	$4, n
+	jl	L(end)
+	ALIGN(16)
+L(top):	mov	24(up,n,8), %r8
+	mov	%r8, 24(rp,n,8)
+	mov	16(up,n,8), %r8
+	mov	%r8, 16(rp,n,8)
+	mov	8(up,n,8), %r8
+	mov	%r8, 8(rp,n,8)
+	mov	(up,n,8), %r8
+	mov	%r8, (rp,n,8)
+L(ent):	sub	$4, n
+	jge	L(top)
+
+L(end):	cmp	$-4, R32(n)
+	jz	L(ret)
+	mov	24(up,n,8), %r8
+	mov	%r8, 24(rp,n,8)
+	cmp	$-3, R32(n)
+	jz	L(ret)
+	mov	16(up,n,8), %r8
+	mov	%r8, 16(rp,n,8)
+	cmp	$-2, R32(n)
+	jz	L(ret)
+	mov	8(up,n,8), %r8
+	mov	%r8, 8(rp,n,8)
+
+L(ret):	FUNC_EXIT()
+	ret
+EPILOGUE()
-- 
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