diff options
Diffstat (limited to 'plugins/MirOTR/libgcrypt-1.4.6/mpi/powerpc32/mpih-add1.S')
| -rw-r--r-- | plugins/MirOTR/libgcrypt-1.4.6/mpi/powerpc32/mpih-add1.S | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/plugins/MirOTR/libgcrypt-1.4.6/mpi/powerpc32/mpih-add1.S b/plugins/MirOTR/libgcrypt-1.4.6/mpi/powerpc32/mpih-add1.S deleted file mode 100644 index 1661f5e679..0000000000 --- a/plugins/MirOTR/libgcrypt-1.4.6/mpi/powerpc32/mpih-add1.S +++ /dev/null @@ -1,136 +0,0 @@ -/* PowerPC-32 add_n -- Add two limb vectors of equal, non-zero length. - * - * Copyright (C) 1992, 1994, 1995, 1998, 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 - */ - -#include "sysdep.h" -#include "asm-syntax.h" - - -#ifndef USE_PPC_PATCHES - -/******************* - * mpi_limb_t - * _gcry_mpih_add_n( mpi_ptr_t res_ptr, (r3) - * mpi_ptr_t s1_ptr, (r4) - * mpi_ptr_t s2_ptr, (r5) - * mpi_size_t size) (r6) - */ - - .toc - .extern _gcry_mpih_add_n[DS] - .extern ._gcry_mpih_add_n -.csect [PR] - .align 2 - .globl _gcry_mpih_add_n - .globl ._gcry_mpih_add_n - .csect _gcry_mpih_add_n[DS] -_gcry_mpih_add_n: - .long ._gcry_mpih_add_n, TOC[tc0], 0 - .csect [PR] -._gcry_mpih_add_n: - mtctr 6 # copy size into CTR - lwz 8,0(4) # load least significant s1 limb - lwz 0,0(5) # load least significant s2 limb - addi 3,3,-4 # offset res_ptr, it is updated before used - addc 7,0,8 # add least significant limbs, set cy - bdz Lend # If done, skip loop -Loop: lwzu 8,4(4) # load s1 limb and update s1_ptr - lwzu 0,4(5) # load s2 limb and update s2_ptr - stwu 7,4(3) # store previous limb in load latency slot - adde 7,0,8 # add new limbs with cy, set cy - bdnz Loop # decrement CTR and loop back -Lend: stw 7,4(3) # store ultimate result limb - li 3,0 # load cy into ... - addze 3,3 # ... return value register - blr - -#else -/* Add two limb vectors of equal, non-zero length for PowerPC. - Copyright (C) 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include "sysdep.h" -#include "asm-syntax.h" - - -/* mp_limb_t mpn_add_n (mp_ptr res_ptr, mp_srcptr s1_ptr, mp_srcptr s2_ptr, - mp_size_t size) - Calculate s1+s2 and put result in res_ptr; return carry, 0 or 1. */ - -/* Note on optimisation: This code is optimal for the 601. Almost every other - possible 2-unrolled inner loop will not be. Also, watch out for the - alignment... */ - -EALIGN(_gcry_mpih_add_n,3,0) -/* Set up for loop below. */ - mtcrf 0x01,%r6 - srwi. %r7,%r6,1 - li %r10,0 - mtctr %r7 - bt 31,2f - -/* Clear the carry. */ - addic %r0,%r0,0 -/* Adjust pointers for loop. */ - addi %r3,%r3,-4 - addi %r4,%r4,-4 - addi %r5,%r5,-4 - b 0f - -2: lwz %r7,0(%r5) - lwz %r6,0(%r4) - addc %r6,%r6,%r7 - stw %r6,0(%r3) - beq 1f - -/* The loop. */ - -/* Align start of loop to an odd word boundary to guarantee that the - last two words can be fetched in one access (for 601). */ -0: lwz %r9,4(%r4) - lwz %r8,4(%r5) - lwzu %r6,8(%r4) - lwzu %r7,8(%r5) - adde %r8,%r9,%r8 - stw %r8,4(%r3) - adde %r6,%r6,%r7 - stwu %r6,8(%r3) - bdnz 0b -/* Return the carry. */ -1: addze %r3,%r10 - blr -END(_gcry_mpih_add_n) -#endif - |