diff options
Diffstat (limited to 'mpi/pentium4/mmx/mpih-lshift.S')
| -rw-r--r-- | mpi/pentium4/mmx/mpih-lshift.S | 457 |
1 files changed, 0 insertions, 457 deletions
diff --git a/mpi/pentium4/mmx/mpih-lshift.S b/mpi/pentium4/mmx/mpih-lshift.S deleted file mode 100644 index e2dd184b..00000000 --- a/mpi/pentium4/mmx/mpih-lshift.S +++ /dev/null @@ -1,457 +0,0 @@ -/* Intel Pentium-4 mpn_lshift -- left 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_lshift( 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_lshift) -C_SYMBOL_NAME(_gcry_mpih_lshift:) - - - 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 - - movl -4(%ebx,%eax,4), %edi - decl %eax - - jnz .Lsimple - - shldl %cl, %edi, %eax - - shll %cl, %edi - - movl %edi, (%edx) - popl %edi - - popl %ebx - - ret - - - - - -.Lsimple: - - - - - - - - - - movd (%ebx,%eax,4), %mm5 - - movd %ecx, %mm6 - negl %ecx - - psllq %mm6, %mm5 - addl $32, %ecx - - movd %ecx, %mm7 - psrlq $32, %mm5 - - -.Lsimple_top: - - - - - - - - - - - - - movq -4(%ebx,%eax,4), %mm0 - decl %eax - - psrlq %mm7, %mm0 - - - - movd %mm0, 4(%edx,%eax,4) - jnz .Lsimple_top - - - movd (%ebx), %mm0 - - movd %mm5, %eax - psllq %mm6, %mm0 - - popl %edi - popl %ebx - - movd %mm0, (%edx) - - emms - - ret - - - - - - .align 8, 0x90 -.Lunroll: - - - - - - - - - - movd -4(%ebx,%eax,4), %mm5 - leal (%ebx,%eax,4), %edi - - movd %ecx, %mm6 - andl $4, %edi - - psllq %mm6, %mm5 - jz .Lstart_src_aligned - - - - - - - - - - - - - - - - - - - - movq -8(%ebx,%eax,4), %mm0 - - psllq %mm6, %mm0 - decl %eax - - psrlq $32, %mm0 - - - - movd %mm0, (%edx,%eax,4) -.Lstart_src_aligned: - - movq -8(%ebx,%eax,4), %mm1 - leal (%edx,%eax,4), %edi - - andl $4, %edi - psrlq $32, %mm5 - - movq -16(%ebx,%eax,4), %mm3 - jz .Lstart_dst_aligned - - - - - - - - - - - - - - - - - - - - - movq %mm1, %mm0 - addl $32, %ecx - - psllq %mm6, %mm0 - - movd %ecx, %mm6 - psrlq $32, %mm0 - - - - movd %mm0, -4(%edx,%eax,4) - subl $4, %edx -.Lstart_dst_aligned: - - - psllq %mm6, %mm1 - negl %ecx - - addl $64, %ecx - movq %mm3, %mm2 - - movd %ecx, %mm7 - subl $8, %eax - - psrlq %mm7, %mm3 - - por %mm1, %mm3 - jc .Lfinish - - - - - .align 8, 0x90 -.Lunroll_loop: - - - - - - - - - - - - - - - - - movq 8(%ebx,%eax,4), %mm0 - psllq %mm6, %mm2 - - movq %mm0, %mm1 - psrlq %mm7, %mm0 - - movq %mm3, 24(%edx,%eax,4) - por %mm2, %mm0 - - movq (%ebx,%eax,4), %mm3 - psllq %mm6, %mm1 - - movq %mm0, 16(%edx,%eax,4) - movq %mm3, %mm2 - - psrlq %mm7, %mm3 - subl $4, %eax - - por %mm1, %mm3 - jnc .Lunroll_loop - - - -.Lfinish: - - - testb $2, %al - - jz .Lfinish_no_two - - movq 8(%ebx,%eax,4), %mm0 - psllq %mm6, %mm2 - - movq %mm0, %mm1 - psrlq %mm7, %mm0 - - movq %mm3, 24(%edx,%eax,4) - por %mm2, %mm0 - - movq %mm1, %mm2 - movq %mm0, %mm3 - - subl $2, %eax -.Lfinish_no_two: - - - - - - - - testb $1, %al - movd %mm5, %eax - - popl %edi - jz .Lfinish_zero - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - movd (%ebx), %mm0 - psllq %mm6, %mm2 - - movq %mm3, 12(%edx) - psllq $32, %mm0 - - movq %mm0, %mm1 - psrlq %mm7, %mm0 - - por %mm2, %mm0 - psllq %mm6, %mm1 - - movq %mm0, 4(%edx) - psrlq $32, %mm1 - - andl $32, %ecx - popl %ebx - - jz .Lfinish_one_unaligned - - movd %mm1, (%edx) -.Lfinish_one_unaligned: - - emms - - ret - - - - -.Lfinish_zero: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - movq %mm3, 8(%edx) - andl $32, %ecx - - psllq %mm6, %mm2 - jz .Lfinish_zero_unaligned - - movq %mm2, (%edx) -.Lfinish_zero_unaligned: - - psrlq $32, %mm2 - popl %ebx - - movd %mm5, %eax - - movd %mm2, 4(%edx) - - emms - - ret |