mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-30 10:45:40 +03:00
217eb19b6f
1999-10-11 Ulrich Drepper <drepper@cygnus.com> * sysdeps/powerpc/Makefile [math] (libm-support): Remove t_sqrt. * sysdeps/powerpc/e_sqrt.c: Moved to... * sysdeps/powerpc/fpu/e_sqrt.c: ...here. * sysdeps/powerpc/e_sqrtf.c: Moved to... * sysdeps/powerpc/fpu/e_sqrtf.c: ...here. * sysdeps/powerpc/submul_1.S: Adjust asm syntax. * sysdeps/powerpc/sub_n.S: Likewise. * sysdeps/powerpc/strlen.S: Likewise. * sysdeps/powerpc/strcpy.S: Likewise. * sysdeps/powerpc/strcmp.S: Likewise. * sysdeps/powerpc/strchr.S: Likewise. * sysdeps/powerpc/stpcpy.S: Likewise. * sysdeps/powerpc/setjmp.S: Likewise. * sysdeps/powerpc/rshift.S: Likewise. * sysdeps/powerpc/ppc-mcount.S: Likewise. * sysdeps/powerpc/mul_1.S: Likewise. * sysdeps/powerpc/memset.S: Likewise. * sysdeps/powerpc/lshift.S: Likewise. * sysdeps/powerpc/dl-start.S: Likewise. * sysdeps/powerpc/bzero.S: Likewise. * sysdeps/powerpc/bsd-setjmp.S: Likewise. * sysdeps/powerpc/bsd-_setjmp.S: Likewise. * sysdeps/powerpc/addmul_1.S: Likewise. * sysdeps/powerpc/add_n.S: Likewise. * sysdeps/powerpc/__longjmp.S: Likewise. * sysdeps/powerpc/elf/start.S: Likewise. 1999-10-11 Cristian Gafton <gafton@redhat.com> * sysdeps/unix/sysv/linux/alpha/bits/sigaction.h: Declare
57 lines
1.5 KiB
ArmAsm
57 lines
1.5 KiB
ArmAsm
/* Shift a limb right, low level routine.
|
|
Copyright (C) 1995, 1997, 1999 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The GNU C 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C 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. */
|
|
|
|
#include <sysdep.h>
|
|
|
|
/* INPUT PARAMETERS
|
|
res_ptr r3
|
|
s1_ptr r4
|
|
size r5
|
|
cnt r6 */
|
|
|
|
ENTRY(__mpn_rshift)
|
|
mtctr r5 # copy size into CTR
|
|
addi r7,r3,-4 # move adjusted res_ptr to free return reg
|
|
subfic r8,r6,32
|
|
lwz r11,0(r4) # load first s1 limb
|
|
slw r3,r11,r8 # compute function return value
|
|
bdz 1f
|
|
|
|
0: lwzu r10,4(r4)
|
|
srw r9,r11,r6
|
|
slw r12,r10,r8
|
|
or r9,r9,r12
|
|
stwu r9,4(r7)
|
|
bdz 2f
|
|
lwzu r11,4(r4)
|
|
srw r9,r10,r6
|
|
slw r12,r11,r8
|
|
or r9,r9,r12
|
|
stwu r9,4(r7)
|
|
bdnz 0b
|
|
|
|
1: srw r0,r11,r6
|
|
stw r0,4(r7)
|
|
blr
|
|
|
|
2: srw r0,r10,r6
|
|
stw r0,4(r7)
|
|
blr
|
|
END(__mpn_rshift)
|