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-rw-r--r--sysdeps/powerpc/rshift.S63
1 files changed, 0 insertions, 63 deletions
diff --git a/sysdeps/powerpc/rshift.S b/sysdeps/powerpc/rshift.S
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-/* Shift a limb right, low level routine.
- Copyright (C) 1995, 1997, 1999, 2000 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 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 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#include <sysdep.h>
-#include <bp-sym.h>
-#include <bp-asm.h>
-
-/* INPUT PARAMETERS
- res_ptr r3
- s1_ptr r4
- size r5
- cnt r6 */
-
-ENTRY (BP_SYM (__mpn_rshift))
-#if __BOUNDED_POINTERS__
- slwi r10,r5,2 /* convert limbs to bytes */
- CHECK_BOUNDS_BOTH_WIDE (r3, r8, r9, r10)
- CHECK_BOUNDS_BOTH_WIDE (r4, r8, r9, r10)
-#endif
- 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 L(1)
-
-L(0): lwzu r10,4(r4)
- srw r9,r11,r6
- slw r12,r10,r8
- or r9,r9,r12
- stwu r9,4(r7)
- bdz L(2)
- lwzu r11,4(r4)
- srw r9,r10,r6
- slw r12,r11,r8
- or r9,r9,r12
- stwu r9,4(r7)
- bdnz L(0)
-
-L(1): srw r0,r11,r6
- stw r0,4(r7)
- blr
-
-L(2): srw r0,r10,r6
- stw r0,4(r7)
- blr
-END (BP_SYM (__mpn_rshift))