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Diffstat (limited to 'mpi/powerpc32/mpih-mul3.S')
| -rw-r--r-- | mpi/powerpc32/mpih-mul3.S | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/mpi/powerpc32/mpih-mul3.S b/mpi/powerpc32/mpih-mul3.S deleted file mode 100644 index e6b7cf5c..00000000 --- a/mpi/powerpc32/mpih-mul3.S +++ /dev/null @@ -1,130 +0,0 @@ -/* PowerPC-32 submul_1 -- Multiply a limb vector with a limb and subtract - * the result from a second limb vector. - * - * Copyright (C) 1995, 1998 Free Software Foundation, Inc. - * - * This file is part of GnuPG. - * - * GnuPG is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * GnuPG 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 General Public License for more details. - * - * You should have received a copy of the GNU 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 - * mpihelp_submul_1( mpi_ptr_t res_ptr, (r3) - * mpi_ptr_t s1_ptr, (r4) - * mpi_size_t s1_size, (r5) - * mpi_limb_t s2_limb) (r6) - * - * This is a fairly straightforward implementation. The timing of the PC601 - * is hard to understand, so I will wait to optimize this until I have some - * hardware to play with. - * - * The code trivially generalizes to 64 bit limbs for the PC620. - */ - - .toc - .csect .mpihelp_submul_1[PR] - .align 2 - .globl mpihelp_submul_1 - .globl .mpihelp_submul_1 - .csect mpihelp_submul_1[DS] -mpihelp_submul_1: - .long .mpihelp_submul_1[PR], TOC[tc0], 0 - .csect .mpihelp_submul_1[PR] -.mpihelp_submul_1: - mtctr 5 - - lwz 0,0(4) - mullw 7,0,6 - mulhwu 10,0,6 - lwz 9,0(3) - subfc 8,7,9 - addc 7,7,8 # invert cy (r7 is junk) - addi 3,3,-4 - bdz Lend - -Loop: lwzu 0,4(4) - stwu 8,4(3) - mullw 8,0,6 - adde 7,8,10 - mulhwu 10,0,6 - lwz 9,4(3) - addze 10,10 - subfc 8,7,9 - addc 7,7,8 # invert cy (r7 is junk) - bdnz Loop - -Lend: stw 8,4(3) - addze 3,10 - blr - -#else -/* Multiply a limb vector by a single limb, for PowerPC. - Copyright (C) 1993, 1994, 1995, 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. */ - -/* mp_limb_t mpn_submul_1 (mp_ptr res_ptr, mp_srcptr s1_ptr, - mp_size_t s1_size, mp_limb_t s2_limb) - Calculate res-s1*s2 and put result back in res; return carry. */ - -ENTRY(mpihelp_submul_1) - mtctr %r5 - - lwz %r0,0(%r4) - mullw %r7,%r0,%r6 - mulhwu %r10,%r0,%r6 - lwz %r9,0(%r3) - subf %r8,%r7,%r9 - addc %r7,%r7,%r8 # invert cy (r7 is junk) - addi %r3,%r3,-4 # adjust res_ptr - bdz 1f - -0: lwzu %r0,4(%r4) - stwu %r8,4(%r3) - mullw %r8,%r0,%r6 - adde %r7,%r8,%r10 - mulhwu %r10,%r0,%r6 - lwz %r9,4(%r3) - addze %r10,%r10 - subf %r8,%r7,%r9 - addc %r7,%r7,%r8 # invert cy (r7 is junk) - bdnz 0b - -1: stw %r8,4(%r3) - addze %r3,%r10 - blr -END(mpihelp_submul_1) -#endif |