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Diffstat (limited to 'sysdeps/mips/mips64/memset.S')
| -rw-r--r-- | sysdeps/mips/mips64/memset.S | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/sysdeps/mips/mips64/memset.S b/sysdeps/mips/mips64/memset.S deleted file mode 100644 index b50aaba816..0000000000 --- a/sysdeps/mips/mips64/memset.S +++ /dev/null @@ -1,92 +0,0 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Hartvig Ekner <hartvige@mips.com>, 2002. - Ported to mips3 n32/n64 by Alexandre Oliva <aoliva@redhat.com> - - 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 <endian.h> -#include <sys/asm.h> - - -/* void *memset(void *s, int c, size_t n); - - This could probably be optimized further. */ - -#if __BYTE_ORDER == __BIG_ENDIAN -# define SDHI sdl /* high part is left in big-endian */ -#else -# define SDHI sdr /* high part is right in little-endian */ -#endif - -ENTRY (memset) - .set noreorder - - slti ta1, a2, 16 # Less than 16? - bne ta1, zero, L(last16) - move v0, a0 # Setup exit value before too late - - beq a1, zero, L(ueven) # If zero pattern, no need to extend - andi a1, 0xff # Avoid problems with bogus arguments - dsll ta0, a1, 8 - or a1, ta0 - dsll ta0, a1, 16 - or a1, ta0 # a1 is now pattern in full word - dsll ta0, a1, 32 - or a1, ta0 # a1 is now pattern in double word - -L(ueven): - PTR_SUBU ta0, zero, a0 # Unaligned address? - andi ta0, 0x7 - beq ta0, zero, L(chkw) - PTR_SUBU a2, ta0 - SDHI a1, 0(a0) # Yes, handle first unaligned part - PTR_ADDU a0, ta0 # Now both a0 and a2 are updated - -L(chkw): - andi ta0, a2, 0xf # Enough left for one loop iteration? - beq ta0, a2, L(chkl) - PTR_SUBU a3, a2, ta0 - PTR_ADDU a3, a0 # a3 is last loop address +1 - move a2, ta0 # a2 is now # of bytes left after loop -L(loopw): - PTR_ADDIU a0, 16 # Handle 2 dwords pr. iteration - sd a1, -16(a0) - bne a0, a3, L(loopw) - sd a1, -8(a0) - -L(chkl): - andi ta0, a2, 0x8 # Check if there is at least a double - beq ta0, zero, L(last16) # word remaining after the loop - PTR_SUBU a2, ta0 - sd a1, 0(a0) # Yes... - PTR_ADDIU a0, 8 - -L(last16): - blez a2, L(exit) # Handle last 16 bytes (if cnt>0) - PTR_ADDU a3, a2, a0 # a3 is last address +1 -L(lst16l): - PTR_ADDIU a0, 1 - bne a0, a3, L(lst16l) - sb a1, -1(a0) -L(exit): - j ra # Bye, bye - nop - - .set reorder -END (memset) -libc_hidden_builtin_def (memset) |