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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /comm/third_party/libgcrypt/mpi/pentium4/mmx/mpih-rshift.S
parentInitial commit. (diff)
downloadthunderbird-upstream.tar.xz
thunderbird-upstream.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'comm/third_party/libgcrypt/mpi/pentium4/mmx/mpih-rshift.S')
-rw-r--r--comm/third_party/libgcrypt/mpi/pentium4/mmx/mpih-rshift.S453
1 files changed, 453 insertions, 0 deletions
diff --git a/comm/third_party/libgcrypt/mpi/pentium4/mmx/mpih-rshift.S b/comm/third_party/libgcrypt/mpi/pentium4/mmx/mpih-rshift.S
new file mode 100644
index 0000000000..e3374e3ba3
--- /dev/null
+++ b/comm/third_party/libgcrypt/mpi/pentium4/mmx/mpih-rshift.S
@@ -0,0 +1,453 @@
+/* Intel Pentium-4 mpn_rshift -- right shift.
+ *
+ * Copyright 2001, 2002 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, (sp + 4)
+ * mpi_ptr_t up, (sp + 8)
+ * mpi_size_t usize, (sp + 12)
+ * unsigned cnt) (sp + 16)
+ *
+ * P4 Willamette, Northwood: 1.75 cycles/limb
+ * P4 Prescott: 2.0 cycles/limb
+ */
+
+.text
+ ALIGN (3)
+ .globl C_SYMBOL_NAME(_gcry_mpih_rshift)
+C_SYMBOL_NAME(_gcry_mpih_rshift:)
+ pushl %ebx
+ pushl %edi
+
+
+ movl 20(%esp), %eax
+ movl 12(%esp), %edx
+
+ movl 16(%esp), %ebx
+ movl 24(%esp), %ecx
+
+ cmp $5, %eax
+ jae .Lunroll
+
+ decl %eax
+ movl (%ebx), %edi
+
+ jnz .Lsimple
+
+ shrdl %cl, %edi, %eax
+
+ shrl %cl, %edi
+
+ movl %edi, (%edx)
+ popl %edi
+
+ popl %ebx
+
+ ret
+
+
+
+
+
+ .align 8, 0x90
+.Lsimple:
+
+
+
+
+
+
+
+
+
+ movd (%ebx), %mm5
+ leal (%ebx,%eax,4), %ebx
+
+ movd %ecx, %mm6
+ leal -4(%edx,%eax,4), %edx
+
+ psllq $32, %mm5
+ negl %eax
+
+
+
+
+
+
+
+.Lsimple_top:
+
+
+
+
+
+
+
+
+
+ movq (%ebx,%eax,4), %mm0
+ incl %eax
+
+ psrlq %mm6, %mm0
+
+ movd %mm0, (%edx,%eax,4)
+ jnz .Lsimple_top
+
+
+ movd (%ebx), %mm0
+ psrlq %mm6, %mm5
+
+ psrlq %mm6, %mm0
+ popl %edi
+
+ movd %mm5, %eax
+ popl %ebx
+
+ movd %mm0, 4(%edx)
+
+ emms
+
+ ret
+
+
+
+
+
+ .align 8, 0x90
+.Lunroll:
+
+
+
+
+
+
+
+
+
+ movd (%ebx), %mm5
+ movl $4, %edi
+
+ movd %ecx, %mm6
+ testl %edi, %ebx
+
+ psllq $32, %mm5
+ jz .Lstart_src_aligned
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ movq (%ebx), %mm0
+
+ psrlq %mm6, %mm0
+ addl $4, %ebx
+
+ decl %eax
+
+ movd %mm0, (%edx)
+ addl $4, %edx
+.Lstart_src_aligned:
+
+
+ movq (%ebx), %mm1
+ testl %edi, %edx
+
+ psrlq %mm6, %mm5
+ jz .Lstart_dst_aligned
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ movq %mm1, %mm0
+ addl $32, %ecx
+
+ psrlq %mm6, %mm0
+
+ movd %ecx, %mm6
+
+ movd %mm0, (%edx)
+ addl $4, %edx
+.Lstart_dst_aligned:
+
+
+ movq 8(%ebx), %mm3
+ negl %ecx
+
+ movq %mm3, %mm2
+ addl $64, %ecx
+
+ movd %ecx, %mm7
+ psrlq %mm6, %mm1
+
+ leal -12(%ebx,%eax,4), %ebx
+ leal -20(%edx,%eax,4), %edx
+
+ psllq %mm7, %mm3
+ subl $7, %eax
+
+ por %mm1, %mm3
+ negl %eax
+
+ jns .Lfinish
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ .align 8, 0x90
+.Lunroll_loop:
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ movq (%ebx,%eax,4), %mm0
+ psrlq %mm6, %mm2
+
+ movq %mm0, %mm1
+ psllq %mm7, %mm0
+
+ movq %mm3, -8(%edx,%eax,4)
+ por %mm2, %mm0
+
+ movq 8(%ebx,%eax,4), %mm3
+ psrlq %mm6, %mm1
+
+ movq %mm0, (%edx,%eax,4)
+ movq %mm3, %mm2
+
+ psllq %mm7, %mm3
+ addl $4, %eax
+
+ por %mm1, %mm3
+ js .Lunroll_loop
+
+
+.Lfinish:
+
+
+ testb $2, %al
+
+ jnz .Lfinish_no_two
+
+ movq (%ebx,%eax,4), %mm0
+ psrlq %mm6, %mm2
+
+ movq %mm0, %mm1
+ psllq %mm7, %mm0
+
+ movq %mm3, -8(%edx,%eax,4)
+ por %mm2, %mm0
+
+ movq %mm1, %mm2
+ movq %mm0, %mm3
+
+ addl $2, %eax
+.Lfinish_no_two:
+
+
+
+
+
+
+
+ testb $1, %al
+ popl %edi
+
+ movd %mm5, %eax
+ jnz .Lfinish_zero
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ movd 8(%ebx), %mm0
+ psrlq %mm6, %mm2
+
+ movq %mm0, %mm1
+ psllq %mm7, %mm0
+
+ movq %mm3, (%edx)
+ por %mm2, %mm0
+
+ psrlq %mm6, %mm1
+ andl $32, %ecx
+
+ popl %ebx
+ jz .Lfinish_one_unaligned
+
+
+ movd %mm1, 16(%edx)
+.Lfinish_one_unaligned:
+
+ movq %mm0, 8(%edx)
+
+ emms
+
+ ret
+
+
+
+
+.Lfinish_zero:
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ movq %mm3, 4(%edx)
+ psrlq %mm6, %mm2
+
+ movd %mm2, 12(%edx)
+ andl $32, %ecx
+
+ popl %ebx
+ jz .Lfinish_zero_unaligned
+
+ movq %mm2, 12(%edx)
+.Lfinish_zero_unaligned:
+
+ emms
+
+ ret