Import gcrypt public-key cryptography and implement signature checking.
This commit is contained in:
Vladimir 'phcoder' Serbinenko
parent
535714bdcf
commit
5e3b8dcbb5
238 changed files with 40500 additions and 417 deletions
84
grub-core/lib/libgcrypt/mpi/hppa/README
Normal file
84
grub-core/lib/libgcrypt/mpi/hppa/README
Normal file
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@ -0,0 +1,84 @@
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This directory contains mpn functions for various HP PA-RISC chips. Code
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that runs faster on the PA7100 and later implementations, is in the pa7100
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directory.
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RELEVANT OPTIMIZATION ISSUES
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Load and Store timing
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On the PA7000 no memory instructions can issue the two cycles after a store.
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For the PA7100, this is reduced to one cycle.
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The PA7100 has a lookup-free cache, so it helps to schedule loads and the
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dependent instruction really far from each other.
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STATUS
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1. mpn_mul_1 could be improved to 6.5 cycles/limb on the PA7100, using the
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instructions bwlow (but some sw pipelining is needed to avoid the
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xmpyu-fstds delay):
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fldds s1_ptr
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xmpyu
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fstds N(%r30)
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xmpyu
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fstds N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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addc
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stws res_ptr
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addc
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stws res_ptr
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addib Loop
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2. mpn_addmul_1 could be improved from the current 10 to 7.5 cycles/limb
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(asymptotically) on the PA7100, using the instructions below. With proper
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sw pipelining and the unrolling level below, the speed becomes 8
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cycles/limb.
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fldds s1_ptr
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fldds s1_ptr
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xmpyu
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fstds N(%r30)
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xmpyu
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fstds N(%r30)
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xmpyu
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fstds N(%r30)
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xmpyu
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fstds N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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addc
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addc
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addc
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addc
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addc %r0,%r0,cy-limb
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ldws res_ptr
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ldws res_ptr
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ldws res_ptr
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ldws res_ptr
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add
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stws res_ptr
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addc
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stws res_ptr
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addc
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stws res_ptr
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addc
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stws res_ptr
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addib
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7
grub-core/lib/libgcrypt/mpi/hppa/distfiles
Normal file
7
grub-core/lib/libgcrypt/mpi/hppa/distfiles
Normal file
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@ -0,0 +1,7 @@
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README
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udiv-qrnnd.S
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mpih-add1.S
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mpih-sub1.S
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mpih-lshift.S
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mpih-rshift.S
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70
grub-core/lib/libgcrypt/mpi/hppa/mpih-add1.S
Normal file
70
grub-core/lib/libgcrypt/mpi/hppa/mpih-add1.S
Normal file
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@ -0,0 +1,70 @@
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/* hppa add_n -- Add two limb vectors of the same length > 0 and store
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* sum in a third limb vector.
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*
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* Copyright (C) 1992, 1994, 1998,
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* 2001, 2002 Fee Software Foundation, Inc.
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*
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* This file is part of Libgcrypt.
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*
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* Libgcrypt is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* Libgcrypt is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*
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* Note: This code is heavily based on the GNU MP Library.
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* Actually it's the same code with only minor changes in the
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* way the data is stored; this is to support the abstraction
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* of an optional secure memory allocation which may be used
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* to avoid revealing of sensitive data due to paging etc.
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*/
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/*******************
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* mpi_limb_t
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* _gcry_mpih_add_n( mpi_ptr_t res_ptr, (gr26)
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* mpi_ptr_t s1_ptr, (gr25)
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* mpi_ptr_t s2_ptr, (gr24)
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* mpi_size_t size) (gr23)
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*
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* One might want to unroll this as for other processors, but it turns
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* out that the data cache contention after a store makes such
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* unrolling useless. We can't come under 5 cycles/limb anyway.
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*/
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.code
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.export _gcry_mpih_add_n
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.label _gcry_mpih_add_n
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.proc
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.callinfo frame=0,no_calls
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.entry
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ldws,ma 4(0,%r25),%r20
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ldws,ma 4(0,%r24),%r19
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addib,= -1,%r23,L$end ; check for (SIZE == 1)
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add %r20,%r19,%r28 ; add first limbs ignoring cy
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.label L$loop
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ldws,ma 4(0,%r25),%r20
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ldws,ma 4(0,%r24),%r19
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stws,ma %r28,4(0,%r26)
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addib,<> -1,%r23,L$loop
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addc %r20,%r19,%r28
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.label L$end
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stws %r28,0(0,%r26)
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bv 0(%r2)
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addc %r0,%r0,%r28
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.exit
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.procend
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77
grub-core/lib/libgcrypt/mpi/hppa/mpih-lshift.S
Normal file
77
grub-core/lib/libgcrypt/mpi/hppa/mpih-lshift.S
Normal file
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@ -0,0 +1,77 @@
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/* hppa lshift
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*
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* Copyright (C) 1992, 1994, 1998
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* 2001, 2002 Free Software Foundation, Inc.
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*
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* This file is part of Libgcrypt.
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*
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* Libgcrypt is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* Libgcrypt is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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/*******************
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* mpi_limb_t
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* _gcry_mpih_lshift( mpi_ptr_t wp, (gr26)
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* mpi_ptr_t up, (gr25)
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* mpi_size_t usize, (gr24)
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* unsigned cnt) (gr23)
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*/
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.code
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.export _gcry_mpih_lshift
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.label _gcry_mpih_lshift
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.proc
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.callinfo frame=64,no_calls
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.entry
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sh2add %r24,%r25,%r25
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sh2add %r24,%r26,%r26
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ldws,mb -4(0,%r25),%r22
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subi 32,%r23,%r1
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mtsar %r1
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addib,= -1,%r24,L$0004
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vshd %r0,%r22,%r28 ; compute carry out limb
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ldws,mb -4(0,%r25),%r29
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addib,= -1,%r24,L$0002
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vshd %r22,%r29,%r20
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.label L$loop
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ldws,mb -4(0,%r25),%r22
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stws,mb %r20,-4(0,%r26)
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addib,= -1,%r24,L$0003
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vshd %r29,%r22,%r20
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ldws,mb -4(0,%r25),%r29
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stws,mb %r20,-4(0,%r26)
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addib,<> -1,%r24,L$loop
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vshd %r22,%r29,%r20
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.label L$0002
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stws,mb %r20,-4(0,%r26)
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vshd %r29,%r0,%r20
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bv 0(%r2)
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stw %r20,-4(0,%r26)
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.label L$0003
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stws,mb %r20,-4(0,%r26)
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.label L$0004
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vshd %r22,%r0,%r20
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bv 0(%r2)
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stw %r20,-4(0,%r26)
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.exit
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.procend
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73
grub-core/lib/libgcrypt/mpi/hppa/mpih-rshift.S
Normal file
73
grub-core/lib/libgcrypt/mpi/hppa/mpih-rshift.S
Normal file
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@ -0,0 +1,73 @@
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/* hppa rshift
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*
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* Copyright (C) 1992, 1994, 1998,
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* 2001, 2002 Free Software Foundation, Inc.
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*
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* This file is part of Libgcrypt.
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*
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* Libgcrypt is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
|
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* the License, or (at your option) any later version.
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*
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* Libgcrypt is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to the Free Software
|
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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/*******************
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* mpi_limb_t
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* _gcry_mpih_rshift( mpi_ptr_t wp, (gr26)
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* mpi_ptr_t up, (gr25)
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* mpi_size_t usize, (gr24)
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* unsigned cnt) (gr23)
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*/
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.code
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.export _gcry_mpih_rshift
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.label _gcry_mpih_rshift
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.proc
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.callinfo frame=64,no_calls
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.entry
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ldws,ma 4(0,%r25),%r22
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mtsar %r23
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addib,= -1,%r24,L$r004
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vshd %r22,%r0,%r28 ; compute carry out limb
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ldws,ma 4(0,%r25),%r29
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addib,= -1,%r24,L$r002
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vshd %r29,%r22,%r20
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.label L$roop
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ldws,ma 4(0,%r25),%r22
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stws,ma %r20,4(0,%r26)
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addib,= -1,%r24,L$r003
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vshd %r22,%r29,%r20
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ldws,ma 4(0,%r25),%r29
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stws,ma %r20,4(0,%r26)
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addib,<> -1,%r24,L$roop
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vshd %r29,%r22,%r20
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.label L$r002
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stws,ma %r20,4(0,%r26)
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vshd %r0,%r29,%r20
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bv 0(%r2)
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stw %r20,0(0,%r26)
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.label L$r003
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stws,ma %r20,4(0,%r26)
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.label L$r004
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vshd %r0,%r22,%r20
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bv 0(%r2)
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stw %r20,0(0,%r26)
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.exit
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.procend
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78
grub-core/lib/libgcrypt/mpi/hppa/mpih-sub1.S
Normal file
78
grub-core/lib/libgcrypt/mpi/hppa/mpih-sub1.S
Normal file
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|
@ -0,0 +1,78 @@
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/* hppa sub_n -- Sub two limb vectors of the same length > 0 and store
|
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* sum in a third limb vector.
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*
|
||||
* Copyright (C) 1992, 1994, 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.
|
||||
*/
|
||||
|
||||
|
||||
#include "sysdep.h"
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#include "asm-syntax.h"
|
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|
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|
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/*******************
|
||||
* mpi_limb_t
|
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* _gcry_mpih_sub_n( mpi_ptr_t res_ptr, (gr26)
|
||||
* mpi_ptr_t s1_ptr, (gr25)
|
||||
* mpi_ptr_t s2_ptr, (gr24)
|
||||
* mpi_size_t size) (gr23)
|
||||
*
|
||||
* One might want to unroll this as for other processors, but it turns
|
||||
* out that the data cache contention after a store makes such
|
||||
* unrolling useless. We can't come under 5 cycles/limb anyway.
|
||||
*/
|
||||
|
||||
|
||||
.code
|
||||
.export _gcry_mpih_sub_n
|
||||
.label _gcry_mpih_sub_n
|
||||
.proc
|
||||
.callinfo frame=0,no_calls
|
||||
.entry
|
||||
|
||||
ldws,ma 4(0,%r25),%r20
|
||||
ldws,ma 4(0,%r24),%r19
|
||||
|
||||
addib,= -1,%r23,L$end ; check for (SIZE == 1)
|
||||
sub %r20,%r19,%r28 ; subtract first limbs ignoring cy
|
||||
|
||||
.label L$loop
|
||||
ldws,ma 4(0,%r25),%r20
|
||||
ldws,ma 4(0,%r24),%r19
|
||||
stws,ma %r28,4(0,%r26)
|
||||
addib,<> -1,%r23,L$loop
|
||||
subb %r20,%r19,%r28
|
||||
|
||||
.label L$end
|
||||
stws %r28,0(0,%r26)
|
||||
addc %r0,%r0,%r28
|
||||
bv 0(%r2)
|
||||
subi 1,%r28,%r28
|
||||
|
||||
.exit
|
||||
.procend
|
||||
|
||||
|
||||
|
||||
297
grub-core/lib/libgcrypt/mpi/hppa/udiv-qrnnd.S
Normal file
297
grub-core/lib/libgcrypt/mpi/hppa/udiv-qrnnd.S
Normal file
|
|
@ -0,0 +1,297 @@
|
|||
/* HP-PA __udiv_qrnnd division support, used from longlong.h.
|
||||
* This version runs fast on pre-PA7000 CPUs.
|
||||
*
|
||||
* Copyright (C) 1993, 1994, 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
|
||||
* rem_ptr gr26
|
||||
* n1 gr25
|
||||
* n0 gr24
|
||||
* d gr23
|
||||
*
|
||||
* The code size is a bit excessive. We could merge the last two ds;addc
|
||||
* sequences by simply moving the "bb,< Odd" instruction down. The only
|
||||
* trouble is the FFFFFFFF code that would need some hacking.
|
||||
*/
|
||||
|
||||
.code
|
||||
.export __udiv_qrnnd
|
||||
.label __udiv_qrnnd
|
||||
.proc
|
||||
.callinfo frame=0,no_calls
|
||||
.entry
|
||||
|
||||
comb,< %r23,0,L$largedivisor
|
||||
sub %r0,%r23,%r1 ; clear cy as side-effect
|
||||
ds %r0,%r1,%r0
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r23,%r25
|
||||
addc %r24,%r24,%r28
|
||||
ds %r25,%r23,%r25
|
||||
comclr,>= %r25,%r0,%r0
|
||||
addl %r25,%r23,%r25
|
||||
stws %r25,0(0,%r26)
|
||||
bv 0(%r2)
|
||||
addc %r28,%r28,%r28
|
||||
|
||||
.label L$largedivisor
|
||||
extru %r24,31,1,%r19 ; r19 = n0 & 1
|
||||
bb,< %r23,31,L$odd
|
||||
extru %r23,30,31,%r22 ; r22 = d >> 1
|
||||
shd %r25,%r24,1,%r24 ; r24 = new n0
|
||||
extru %r25,30,31,%r25 ; r25 = new n1
|
||||
sub %r0,%r22,%r21
|
||||
ds %r0,%r21,%r0
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
comclr,>= %r25,%r0,%r0
|
||||
addl %r25,%r22,%r25
|
||||
sh1addl %r25,%r19,%r25
|
||||
stws %r25,0(0,%r26)
|
||||
bv 0(%r2)
|
||||
addc %r24,%r24,%r28
|
||||
|
||||
.label L$odd
|
||||
addib,sv,n 1,%r22,L$FF.. ; r22 = (d / 2 + 1)
|
||||
shd %r25,%r24,1,%r24 ; r24 = new n0
|
||||
extru %r25,30,31,%r25 ; r25 = new n1
|
||||
sub %r0,%r22,%r21
|
||||
ds %r0,%r21,%r0
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r24
|
||||
ds %r25,%r22,%r25
|
||||
addc %r24,%r24,%r28
|
||||
comclr,>= %r25,%r0,%r0
|
||||
addl %r25,%r22,%r25
|
||||
sh1addl %r25,%r19,%r25
|
||||
; We have computed (n1,,n0) / (d + 1), q' = r28, r' = r25
|
||||
add,nuv %r28,%r25,%r25
|
||||
addl %r25,%r1,%r25
|
||||
addc %r0,%r28,%r28
|
||||
sub,<< %r25,%r23,%r0
|
||||
addl %r25,%r1,%r25
|
||||
stws %r25,0(0,%r26)
|
||||
bv 0(%r2)
|
||||
addc %r0,%r28,%r28
|
||||
|
||||
; This is just a special case of the code above.
|
||||
; We come here when d == 0xFFFFFFFF
|
||||
.label L$FF..
|
||||
add,uv %r25,%r24,%r24
|
||||
sub,<< %r24,%r23,%r0
|
||||
ldo 1(%r24),%r24
|
||||
stws %r24,0(0,%r26)
|
||||
bv 0(%r2)
|
||||
addc %r0,%r25,%r28
|
||||
|
||||
.exit
|
||||
.procend
|
||||
Loading…
Add table
Add a link
Reference in a new issue