glibc/sysdeps/sparc/sparc32/submul_1.S
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

58 lines
1.4 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) 1992-2021 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,
! see <https://www.gnu.org/licenses/>.
! 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)