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See ChangeLog: Fri Nov 27 12:39:29 CET 1998 Werner Koch

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Werner Koch 1998-11-27 11:42:49 +00:00
parent 558baedbe8
commit a7d13c0d80
34 changed files with 922 additions and 3006 deletions
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56
mpi/powerpc32/mpih-mul3.S
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@ -20,6 +20,11 @@
* 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
@ -71,4 +76,55 @@ 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