diff options
Diffstat (limited to 'libotr/libgcrypt-1.8.7/mpi/sparc32v8/mpih-mul1.S')
-rw-r--r-- | libotr/libgcrypt-1.8.7/mpi/sparc32v8/mpih-mul1.S | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/libotr/libgcrypt-1.8.7/mpi/sparc32v8/mpih-mul1.S b/libotr/libgcrypt-1.8.7/mpi/sparc32v8/mpih-mul1.S new file mode 100644 index 0000000..03fcdda --- /dev/null +++ b/libotr/libgcrypt-1.8.7/mpi/sparc32v8/mpih-mul1.S @@ -0,0 +1,109 @@ +/* SPARC v8 __mpn_mul_1 -- Multiply a limb vector with a single limb and + * store the product in a second limb vector. + * + * Copyright (C) 1992, 1994, 1995, 1998, + * 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. + */ + + + +! INPUT PARAMETERS +! res_ptr o0 +! s1_ptr o1 +! size o2 +! s2_limb o3 + +#include "sysdep.h" + +.text + .align 8 + .global C_SYMBOL_NAME(_gcry_mpih_mul_1) +C_SYMBOL_NAME(_gcry_mpih_mul_1): + sll %o2,4,%g1 + and %g1,(4-1)<<4,%g1 +#if PIC + mov %o7,%g4 ! Save return address register + call 1f + add %o7,LL-1f,%g3 +1: mov %g4,%o7 ! Restore return address register +#else + sethi %hi(LL),%g3 + or %g3,%lo(LL),%g3 +#endif + jmp %g3+%g1 + ld [%o1+0],%o4 ! 1 +LL: +LL00: add %o0,-4,%o0 + add %o1,-4,%o1 + b Loop00 /* 4, 8, 12, ... */ + orcc %g0,%g0,%g2 +LL01: b Loop01 /* 1, 5, 9, ... */ + orcc %g0,%g0,%g2 + nop + nop +LL10: add %o0,-12,%o0 /* 2, 6, 10, ... */ + add %o1,4,%o1 + b Loop10 + orcc %g0,%g0,%g2 + nop +LL11: add %o0,-8,%o0 /* 3, 7, 11, ... */ + add %o1,-8,%o1 + b Loop11 + orcc %g0,%g0,%g2 + +Loop: addcc %g3,%g2,%g3 ! 1 + ld [%o1+4],%o4 ! 2 + st %g3,[%o0+0] ! 1 + rd %y,%g2 ! 1 +Loop00: umul %o4,%o3,%g3 ! 2 + addxcc %g3,%g2,%g3 ! 2 + ld [%o1+8],%o4 ! 3 + st %g3,[%o0+4] ! 2 + rd %y,%g2 ! 2 +Loop11: umul %o4,%o3,%g3 ! 3 + addxcc %g3,%g2,%g3 ! 3 + ld [%o1+12],%o4 ! 4 + add %o1,16,%o1 + st %g3,[%o0+8] ! 3 + rd %y,%g2 ! 3 +Loop10: umul %o4,%o3,%g3 ! 4 + addxcc %g3,%g2,%g3 ! 4 + ld [%o1+0],%o4 ! 1 + st %g3,[%o0+12] ! 4 + add %o0,16,%o0 + rd %y,%g2 ! 4 + addx %g0,%g2,%g2 +Loop01: addcc %o2,-4,%o2 + bg Loop + umul %o4,%o3,%g3 ! 1 + + addcc %g3,%g2,%g3 ! 4 + st %g3,[%o0+0] ! 4 + rd %y,%g2 ! 4 + + retl + addx %g0,%g2,%o0 + + |