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authorSoniEx2 <endermoneymod@gmail.com>2021-04-09 07:19:03 -0300
committerSoniEx2 <endermoneymod@gmail.com>2021-04-09 07:19:03 -0300
commit0e752a6e215aee21dc73da097c3225495d54a5b6 (patch)
treeb81be02cbf2f06aebf322ac4a5d014b44176bba5 /libotr/libgcrypt-1.8.7/mpi/amd64
parent7754076c715285173311a1b6811ce377950e18a6 (diff)
Add libotr/etc sources
Diffstat (limited to 'libotr/libgcrypt-1.8.7/mpi/amd64')
-rw-r--r--libotr/libgcrypt-1.8.7/mpi/amd64/distfiles9
-rw-r--r--libotr/libgcrypt-1.8.7/mpi/amd64/func_abi.h19
-rw-r--r--libotr/libgcrypt-1.8.7/mpi/amd64/mpi-asm-defs.h4
-rw-r--r--libotr/libgcrypt-1.8.7/mpi/amd64/mpih-add1.S65
-rw-r--r--libotr/libgcrypt-1.8.7/mpi/amd64/mpih-lshift.S79
-rw-r--r--libotr/libgcrypt-1.8.7/mpi/amd64/mpih-mul1.S67
-rw-r--r--libotr/libgcrypt-1.8.7/mpi/amd64/mpih-mul2.S66
-rw-r--r--libotr/libgcrypt-1.8.7/mpi/amd64/mpih-mul3.S67
-rw-r--r--libotr/libgcrypt-1.8.7/mpi/amd64/mpih-rshift.S82
-rw-r--r--libotr/libgcrypt-1.8.7/mpi/amd64/mpih-sub1.S63
10 files changed, 521 insertions, 0 deletions
diff --git a/libotr/libgcrypt-1.8.7/mpi/amd64/distfiles b/libotr/libgcrypt-1.8.7/mpi/amd64/distfiles
new file mode 100644
index 0000000..44aad5f
--- /dev/null
+++ b/libotr/libgcrypt-1.8.7/mpi/amd64/distfiles
@@ -0,0 +1,9 @@
+func_abi.h
+mpih-add1.S
+mpih-lshift.S
+mpih-mul1.S
+mpih-mul2.S
+mpih-mul3.S
+mpih-rshift.S
+mpih-sub1.S
+mpi-asm-defs.h
diff --git a/libotr/libgcrypt-1.8.7/mpi/amd64/func_abi.h b/libotr/libgcrypt-1.8.7/mpi/amd64/func_abi.h
new file mode 100644
index 0000000..ce44674
--- /dev/null
+++ b/libotr/libgcrypt-1.8.7/mpi/amd64/func_abi.h
@@ -0,0 +1,19 @@
+#ifdef USE_MS_ABI
+ /* Store registers and move four first input arguments from MS ABI to
+  * SYSV ABI.  */
+ #define FUNC_ENTRY() \
+	pushq %rsi; \
+	pushq %rdi; \
+	movq %rdx, %rsi; \
+	movq %rcx, %rdi; \
+	movq %r8, %rdx; \
+	movq %r9, %rcx;
+
+ /* Restore registers.  */
+ #define FUNC_EXIT() \
+	popq %rdi; \
+	popq %rsi;
+#else
+ #define FUNC_ENTRY() /**/
+ #define FUNC_EXIT() /**/
+#endif
diff --git a/libotr/libgcrypt-1.8.7/mpi/amd64/mpi-asm-defs.h b/libotr/libgcrypt-1.8.7/mpi/amd64/mpi-asm-defs.h
new file mode 100644
index 0000000..6519065
--- /dev/null
+++ b/libotr/libgcrypt-1.8.7/mpi/amd64/mpi-asm-defs.h
@@ -0,0 +1,4 @@
+/* This file defines some basic constants for the MPI machinery.  We
+ * need to define the types on a per-CPU basis, so it is done with
+ * this file here.  */
+#define BYTES_PER_MPI_LIMB  (SIZEOF_UNSIGNED_LONG_LONG)
diff --git a/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-add1.S b/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-add1.S
new file mode 100644
index 0000000..6a90262
--- /dev/null
+++ b/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-add1.S
@@ -0,0 +1,65 @@
+/* AMD64 (x86_64) add_n -- Add two limb vectors of the same length > 0 and store
+ *		   sum in a third limb vector.
+ *
+ *      Copyright (C) 1992, 1994, 1995, 1998, 
+ *                    2001, 2002, 2006 Free Software Foundation, Inc.
+ *
+ * This file is part of Libgcrypt.
+ *
+ * Libgcrypt is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * Libgcrypt is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * Note: This code is heavily based on the GNU MP Library.
+ *	 Actually it's the same code with only minor changes in the
+ *	 way the data is stored; this is to support the abstraction
+ *	 of an optional secure memory allocation which may be used
+ *	 to avoid revealing of sensitive data due to paging etc.
+ */
+
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+
+/*******************
+ *  mpi_limb_t
+ *  _gcry_mpih_add_n( mpi_ptr_t res_ptr,	rdi
+ *		   mpi_ptr_t s1_ptr,		rsi
+ *		   mpi_ptr_t s2_ptr,		rdx
+ *		   mpi_size_t size)		rcx
+ */
+
+.text
+	.globl C_SYMBOL_NAME(_gcry_mpih_add_n)
+C_SYMBOL_NAME(_gcry_mpih_add_n:)
+	FUNC_ENTRY()
+	leaq	(%rsi,%rcx,8), %rsi
+	leaq	(%rdi,%rcx,8), %rdi
+	leaq	(%rdx,%rcx,8), %rdx
+	negq	%rcx
+	xorl	%eax, %eax		/* clear cy */
+
+	ALIGN(4)			/* minimal alignment for claimed speed */
+.Loop:	movq	(%rsi,%rcx,8), %rax
+	movq	(%rdx,%rcx,8), %r10
+	adcq	%r10, %rax
+	movq	%rax, (%rdi,%rcx,8)
+	incq	%rcx
+	jne	.Loop
+
+	movq	%rcx, %rax		/* zero %rax */
+	adcq	%rax, %rax
+	FUNC_EXIT()
+	ret
+	
\ No newline at end of file
diff --git a/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-lshift.S b/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-lshift.S
new file mode 100644
index 0000000..9e8979b
--- /dev/null
+++ b/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-lshift.S
@@ -0,0 +1,79 @@
+/* AMD64 (x86_64) lshift -- Left shift a limb vector and store
+ *		  result in a second limb vector.
+ *
+ *      Copyright (C) 1992, 1994, 1995, 1998, 
+ *                    2001, 2002, 2006 Free Software Foundation, Inc.
+ *
+ * This file is part of Libgcrypt.
+ *
+ * Libgcrypt is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * Libgcrypt is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * Note: This code is heavily based on the GNU MP Library.
+ *	 Actually it's the same code with only minor changes in the
+ *	 way the data is stored; this is to support the abstraction
+ *	 of an optional secure memory allocation which may be used
+ *	 to avoid revealing of sensitive data due to paging etc.
+ */
+
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+/*******************
+ * mpi_limb_t
+ * _gcry_mpih_lshift( mpi_ptr_t wp,	rdi
+ *		   mpi_ptr_t up,	rsi
+ *		   mpi_size_t usize,	rdx
+ *		   unsigned cnt)	rcx
+ */
+
+.text
+	.globl C_SYMBOL_NAME(_gcry_mpih_lshift)
+C_SYMBOL_NAME(_gcry_mpih_lshift:)
+	FUNC_ENTRY()
+	movq	-8(%rsi,%rdx,8), %mm7
+	movd	%ecx, %mm1
+	movl	$64, %eax
+	subl	%ecx, %eax
+	movd	%eax, %mm0
+	movq	%mm7, %mm3
+	psrlq	%mm0, %mm7
+	movd	%mm7, %rax
+	subq	$2, %rdx
+	jl	.Lendo
+
+	ALIGN(4)			/* minimal alignment for claimed speed */
+.Loop:	movq	(%rsi,%rdx,8), %mm6
+	movq	%mm6, %mm2
+	psrlq	%mm0, %mm6
+	psllq	%mm1, %mm3
+	por	%mm6, %mm3
+	movq	%mm3, 8(%rdi,%rdx,8)
+	je	.Lende
+	movq	-8(%rsi,%rdx,8), %mm7
+	movq	%mm7, %mm3
+	psrlq	%mm0, %mm7
+	psllq	%mm1, %mm2
+	por	%mm7, %mm2
+	movq	%mm2, (%rdi,%rdx,8)
+	subq	$2, %rdx
+	jge	.Loop
+
+.Lendo:	movq	%mm3, %mm2
+.Lende:	psllq	%mm1, %mm2
+	movq	%mm2, (%rdi)
+	emms
+	FUNC_EXIT()
+	ret
diff --git a/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-mul1.S b/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-mul1.S
new file mode 100644
index 0000000..67ab47e
--- /dev/null
+++ b/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-mul1.S
@@ -0,0 +1,67 @@
+/* AMD64 mul_1 -- Multiply a limb vector with a limb and store
+ *			 the result in a second limb vector.
+ *      Copyright (C) 1992, 1994, 1998, 
+ *                    2001, 2002, 2006 Free Software Foundation, Inc.
+ *
+ * This file is part of Libgcrypt.
+ *
+ * Libgcrypt is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * Libgcrypt is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * Note: This code is heavily based on the GNU MP Library.
+ *	 Actually it's the same code with only minor changes in the
+ *	 way the data is stored; this is to support the abstraction
+ *	 of an optional secure memory allocation which may be used
+ *	 to avoid revealing of sensitive data due to paging etc.
+ */
+
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+/*******************
+ * mpi_limb_t
+ * _gcry_mpih_mul_1( mpi_ptr_t res_ptr,	(rdi)
+ *		  mpi_ptr_t s1_ptr,	(rsi)
+ *		  mpi_size_t s1_size,	(rdx)
+ *		  mpi_limb_t s2_limb)	(rcx)
+ */
+
+
+	TEXT
+	ALIGN(5)
+	.byte	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+
+	GLOBL	C_SYMBOL_NAME(_gcry_mpih_mul_1)
+C_SYMBOL_NAME(_gcry_mpih_mul_1:)
+
+	FUNC_ENTRY()
+	movq	%rdx, %r11
+	leaq	(%rsi,%rdx,8), %rsi
+	leaq	(%rdi,%rdx,8), %rdi
+	negq	%r11
+	xorl	%r8d, %r8d
+
+.Loop:	movq	(%rsi,%r11,8), %rax
+	mulq	%rcx
+	addq	%r8, %rax
+	movl	$0, %r8d
+	adcq	%rdx, %r8
+	movq	%rax, (%rdi,%r11,8)
+	incq	%r11
+	jne	.Loop
+
+	movq	%r8, %rax
+	FUNC_EXIT()
+	ret
diff --git a/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-mul2.S b/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-mul2.S
new file mode 100644
index 0000000..1aa4fa0
--- /dev/null
+++ b/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-mul2.S
@@ -0,0 +1,66 @@
+/* AMD64 addmul2 -- Multiply a limb vector with a limb and add
+ *		      the result to a second limb vector.
+ *
+ *      Copyright (C) 1992, 1994, 1998,
+ *                    2001, 2002, 2006 Free Software Foundation, Inc.
+ *
+ * This file is part of Libgcrypt.
+ *
+ * Libgcrypt is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * Libgcrypt is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * Note: This code is heavily based on the GNU MP Library.
+ *	 Actually it's the same code with only minor changes in the
+ *	 way the data is stored; this is to support the abstraction
+ *	 of an optional secure memory allocation which may be used
+ *	 to avoid revealing of sensitive data due to paging etc.
+ */
+
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+/*******************
+ * mpi_limb_t
+ * _gcry_mpih_addmul_1( mpi_ptr_t res_ptr,   (rdi)
+ *		     mpi_ptr_t s1_ptr,	     (rsi)
+ *		     mpi_size_t s1_size,     (rdx)
+ *		     mpi_limb_t s2_limb)     (rcx)
+ */
+	TEXT
+	GLOBL	C_SYMBOL_NAME(_gcry_mpih_addmul_1)
+C_SYMBOL_NAME(_gcry_mpih_addmul_1:)
+	FUNC_ENTRY()
+	movq	%rdx, %r11
+	leaq	(%rsi,%rdx,8), %rsi
+	leaq	(%rdi,%rdx,8), %rdi
+	negq	%r11
+	xorl	%r8d, %r8d
+	xorl	%r10d, %r10d
+
+	ALIGN(3)			/* minimal alignment for claimed speed */
+.Loop:	movq	(%rsi,%r11,8), %rax
+	mulq	%rcx
+	addq	(%rdi,%r11,8), %rax
+	adcq	%r10, %rdx
+	addq	%r8, %rax
+	movq	%r10, %r8
+	movq	%rax, (%rdi,%r11,8)
+	adcq	%rdx, %r8
+	incq	%r11
+	jne	.Loop
+
+	movq	%r8, %rax
+	FUNC_EXIT()
+	ret
diff --git a/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-mul3.S b/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-mul3.S
new file mode 100644
index 0000000..bc41c4e
--- /dev/null
+++ b/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-mul3.S
@@ -0,0 +1,67 @@
+/* AMD64 submul_1 -- Multiply a limb vector with a limb and add
+ *		      the result to a second limb vector.
+ *
+ *      Copyright (C) 1992, 1994, 1998, 
+ *                    2001, 2002, 2006 Free Software Foundation, Inc.
+ *
+ * This file is part of Libgcrypt.
+ *
+ * Libgcrypt is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * Libgcrypt is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * Note: This code is heavily based on the GNU MP Library.
+ *	 Actually it's the same code with only minor changes in the
+ *	 way the data is stored; this is to support the abstraction
+ *	 of an optional secure memory allocation which may be used
+ *	 to avoid revealing of sensitive data due to paging etc.
+ */
+
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+
+/*******************
+ * mpi_limb_t
+ * _gcry_mpih_submul_1( mpi_ptr_t res_ptr,   (rdi)
+ *		     mpi_ptr_t s1_ptr,	     (rsi)
+ *		     mpi_size_t s1_size,     (rdx)
+ *		     mpi_limb_t s2_limb)     (rcx)
+ */
+	TEXT
+	GLOBL	C_SYMBOL_NAME(_gcry_mpih_submul_1)
+C_SYMBOL_NAME(_gcry_mpih_submul_1:)
+	FUNC_ENTRY()
+	movq	%rdx, %r11
+	leaq	(%rsi,%r11,8), %rsi
+	leaq	(%rdi,%r11,8), %rdi
+	negq	%r11
+	xorl	%r8d, %r8d
+
+	ALIGN(3)			/* minimal alignment for claimed speed */
+.Loop:	movq	(%rsi,%r11,8), %rax
+	movq	(%rdi,%r11,8), %r10
+	mulq	%rcx
+	subq	%r8, %r10
+	movl	$0, %r8d
+	adcl	%r8d, %r8d
+	subq	%rax, %r10
+	adcq	%rdx, %r8
+	movq	%r10, (%rdi,%r11,8)
+	incq	%r11
+	jne	.Loop
+
+	movq	%r8, %rax
+	FUNC_EXIT()
+	ret
diff --git a/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-rshift.S b/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-rshift.S
new file mode 100644
index 0000000..7bd5942
--- /dev/null
+++ b/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-rshift.S
@@ -0,0 +1,82 @@
+/* AMD64 (x86_64) rshift -- Right shift a limb vector and store
+ *		  result in a second limb vector.
+ *
+ *      Copyright (C) 1992, 1994, 1995, 1998, 
+ *                    2001, 2002, 2006 Free Software Foundation, Inc.
+ *
+ * This file is part of Libgcrypt.
+ *
+ * Libgcrypt is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * Libgcrypt is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * Note: This code is heavily based on the GNU MP Library.
+ *	 Actually it's the same code with only minor changes in the
+ *	 way the data is stored; this is to support the abstraction
+ *	 of an optional secure memory allocation which may be used
+ *	 to avoid revealing of sensitive data due to paging etc.
+ */
+
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+/*******************
+ * mpi_limb_t
+ * _gcry_mpih_rshift( mpi_ptr_t wp,	rdi
+ *		   mpi_ptr_t up,	rsi
+ *		   mpi_size_t usize,	rdx
+ *		   unsigned cnt)	rcx
+ */
+
+.text
+	.globl C_SYMBOL_NAME(_gcry_mpih_rshift)
+C_SYMBOL_NAME(_gcry_mpih_rshift:)
+	FUNC_ENTRY()
+	movq	(%rsi), %mm7
+	movd	%ecx, %mm1
+	movl	$64, %eax
+	subl	%ecx, %eax
+	movd	%eax, %mm0
+	movq	%mm7, %mm3
+	psllq	%mm0, %mm7
+	movd	%mm7, %rax
+	leaq	(%rsi,%rdx,8), %rsi
+	leaq	(%rdi,%rdx,8), %rdi
+	negq	%rdx
+	addq	$2, %rdx
+	jg	.Lendo
+
+	ALIGN(4)			/* minimal alignment for claimed speed */
+.Loop:	movq	-8(%rsi,%rdx,8), %mm6
+	movq	%mm6, %mm2
+	psllq	%mm0, %mm6
+	psrlq	%mm1, %mm3
+	por	%mm6, %mm3
+	movq	%mm3, -16(%rdi,%rdx,8)
+	je	.Lende
+	movq	(%rsi,%rdx,8), %mm7
+	movq	%mm7, %mm3
+	psllq	%mm0, %mm7
+	psrlq	%mm1, %mm2
+	por	%mm7, %mm2
+	movq	%mm2, -8(%rdi,%rdx,8)
+	addq	$2, %rdx
+	jle	.Loop
+
+.Lendo:	movq	%mm3, %mm2
+.Lende:	psrlq	%mm1, %mm2
+	movq	%mm2, -8(%rdi)
+	emms
+	FUNC_EXIT()
+	ret
diff --git a/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-sub1.S b/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-sub1.S
new file mode 100644
index 0000000..ccf6496
--- /dev/null
+++ b/libotr/libgcrypt-1.8.7/mpi/amd64/mpih-sub1.S
@@ -0,0 +1,63 @@
+/* AMD64 (x86_64) sub_n -- Subtract two limb vectors of the same length > 0 and store
+ *		   sum in a third limb vector.
+ *
+ *      Copyright (C) 1992, 1994, 1995, 1998, 
+ *                    2001, 2002, 2006 Free Software Foundation, Inc.
+ *
+ * This file is part of Libgcrypt.
+ *
+ * Libgcrypt is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * Libgcrypt is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * Note: This code is heavily based on the GNU MP Library.
+ *	 Actually it's the same code with only minor changes in the
+ *	 way the data is stored; this is to support the abstraction
+ *	 of an optional secure memory allocation which may be used
+ *	 to avoid revealing of sensitive data due to paging etc.
+ */
+
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+
+/*******************
+ *  mpi_limb_t
+ *  _gcry_mpih_sub_n( mpi_ptr_t res_ptr,	rdi
+ *		   mpi_ptr_t s1_ptr,		rsi
+ *		   mpi_ptr_t s2_ptr,		rdx
+ *		   mpi_size_t size)		rcx
+ */
+.text
+	.globl C_SYMBOL_NAME(_gcry_mpih_sub_n)
+C_SYMBOL_NAME(_gcry_mpih_sub_n:)
+	FUNC_ENTRY()
+	leaq	(%rsi,%rcx,8), %rsi
+	leaq	(%rdi,%rcx,8), %rdi
+	leaq	(%rdx,%rcx,8), %rdx
+	negq	%rcx
+	xorl	%eax, %eax		/* clear cy */
+
+	ALIGN(4)			/* minimal alignment for claimed speed */
+.Loop:	movq	(%rsi,%rcx,8), %rax
+	movq	(%rdx,%rcx,8), %r10
+	sbbq	%r10, %rax
+	movq	%rax, (%rdi,%rcx,8)
+	incq	%rcx
+	jne	.Loop
+
+	movq	%rcx, %rax		/* zero %rax */
+	adcq	%rax, %rax
+	FUNC_EXIT()
+	ret