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-rw-r--r--mpi/mips3/mpih-rshift.S93
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diff --git a/mpi/mips3/mpih-rshift.S b/mpi/mips3/mpih-rshift.S
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-/* mips3 rshift
- * 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
- */
-
-/*******************
- * mpi_limb_t
- * mpihelp_rshift( mpi_ptr_t wp, ($4)
- * mpi_ptr_t up, ($5)
- * mpi_size_t usize, ($6)
- * unsigned cnt) ($7)
- */
-
- .text
- .align 2
- .globl mpihelp_rshift
- .ent mpihelp_rshift
-mpihelp_rshift:
- .set noreorder
- .set nomacro
-
- ld $10,0($5) # load first limb
- dsubu $13,$0,$7
- 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
- dsll $2,$10,$13 # compute function result
-
- dsubu $6,$6,$9
-
-.Loop0: ld $3,8($5)
- daddiu $4,$4,8
- daddiu $5,$5,8
- daddiu $9,$9,-1
- dsrl $11,$10,$7
- dsll $12,$3,$13
- move $10,$3
- or $8,$11,$12
- bne $9,$0,.Loop0
- sd $8,-8($4)
-
-.L0: beq $6,$0,.Lend
- nop
-
-.Loop: ld $3,8($5)
- daddiu $4,$4,32
- daddiu $6,$6,-4
- dsrl $11,$10,$7
- dsll $12,$3,$13
-
- ld $10,16($5)
- dsrl $14,$3,$7
- or $8,$11,$12
- sd $8,-32($4)
- dsll $9,$10,$13
-
- ld $3,24($5)
- dsrl $11,$10,$7
- or $8,$14,$9
- sd $8,-24($4)
- dsll $12,$3,$13
-
- ld $10,32($5)
- dsrl $14,$3,$7
- or $8,$11,$12
- sd $8,-16($4)
- dsll $9,$10,$13
-
- daddiu $5,$5,32
- or $8,$14,$9
- bgtz $6,.Loop
- sd $8,-8($4)
-
-.Lend: dsrl $8,$10,$7
- j $31
- sd $8,0($4)
- .end mpihelp_rshift
-