diff options
Diffstat (limited to '')
-rw-r--r-- | grub-core/lib/libgcrypt/mpi/mips3/mpih-lshift.S | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/grub-core/lib/libgcrypt/mpi/mips3/mpih-lshift.S b/grub-core/lib/libgcrypt/mpi/mips3/mpih-lshift.S new file mode 100644 index 0000000..084c109 --- /dev/null +++ b/grub-core/lib/libgcrypt/mpi/mips3/mpih-lshift.S @@ -0,0 +1,97 @@ +/* mips3 lshift + * + * Copyright (C) 1995, 1998, 2000, + * 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 + */ + +/******************* + * mpi_limb_t + * _gcry_mpih_lshift( mpi_ptr_t wp, ($4) + * mpi_ptr_t up, ($5) + * mpi_size_t usize, ($6) + * unsigned cnt) ($7) + */ + + .text + .align 2 + .globl _gcry_mpih_lshift + .ent _gcry_mpih_lshift +_gcry_mpih_lshift: + .set noreorder + .set nomacro + + dsll $2,$6,3 + daddu $5,$5,$2 # make r5 point at end of src + ld $10,-8($5) # load first limb + dsubu $13,$0,$7 + daddu $4,$4,$2 # make r4 point at end of res + daddiu $6,$6,-1 + and $9,$6,4-1 # number of limbs in first loop + beq $9,$0,.L0 # if multiple of 4 limbs, skip first loop + dsrl $2,$10,$13 # compute function result + + dsubu $6,$6,$9 + +.Loop0: ld $3,-16($5) + daddiu $4,$4,-8 + daddiu $5,$5,-8 + daddiu $9,$9,-1 + dsll $11,$10,$7 + dsrl $12,$3,$13 + move $10,$3 + or $8,$11,$12 + bne $9,$0,.Loop0 + sd $8,0($4) + +.L0: beq $6,$0,.Lend + nop + +.Loop: ld $3,-16($5) + daddiu $4,$4,-32 + daddiu $6,$6,-4 + dsll $11,$10,$7 + dsrl $12,$3,$13 + + ld $10,-24($5) + dsll $14,$3,$7 + or $8,$11,$12 + sd $8,24($4) + dsrl $9,$10,$13 + + ld $3,-32($5) + dsll $11,$10,$7 + or $8,$14,$9 + sd $8,16($4) + dsrl $12,$3,$13 + + ld $10,-40($5) + dsll $14,$3,$7 + or $8,$11,$12 + sd $8,8($4) + dsrl $9,$10,$13 + + daddiu $5,$5,-32 + or $8,$14,$9 + bgtz $6,.Loop + sd $8,0($4) + +.Lend: dsll $8,$10,$7 + j $31 + sd $8,-8($4) + .end _gcry_mpih_lshift |