mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 08:40:07 +00:00
59 lines
1.5 KiB
ArmAsm
59 lines
1.5 KiB
ArmAsm
! SPARC v8 __mpn_submul_1 -- Multiply a limb vector with a limb and
|
|
! subtract the result from a second limb vector.
|
|
|
|
! Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
|
|
|
|
! This file is part of the GNU MP Library.
|
|
|
|
! The GNU MP Library 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.
|
|
|
|
! The GNU MP 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 Lesser General Public
|
|
! License for more details.
|
|
|
|
! You should have received a copy of the GNU Lesser General Public License
|
|
! along with the GNU MP 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.
|
|
|
|
|
|
! INPUT PARAMETERS
|
|
! res_ptr o0
|
|
! s1_ptr o1
|
|
! size o2
|
|
! s2_limb o3
|
|
|
|
#include <sysdep.h>
|
|
|
|
ENTRY(__mpn_submul_1)
|
|
sub %g0,%o2,%o2 ! negate ...
|
|
sll %o2,2,%o2 ! ... and scale size
|
|
sub %o1,%o2,%o1 ! o1 is offset s1_ptr
|
|
sub %o0,%o2,%g1 ! g1 is offset res_ptr
|
|
|
|
mov 0,%o0 ! clear cy_limb
|
|
|
|
LOC(loop):
|
|
ld [%o1+%o2],%o4
|
|
ld [%g1+%o2],%g2
|
|
umul %o4,%o3,%o5
|
|
rd %y,%g3
|
|
addcc %o5,%o0,%o5
|
|
addx %g3,0,%o0
|
|
subcc %g2,%o5,%g2
|
|
addx %o0,0,%o0
|
|
st %g2,[%g1+%o2]
|
|
|
|
addcc %o2,4,%o2
|
|
bne LOC(loop)
|
|
nop
|
|
|
|
retl
|
|
nop
|
|
|
|
END(__mpn_submul_1)
|