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-rw-r--r--sysdeps/powerpc/powerpc32/405/strcpy.S107
1 files changed, 0 insertions, 107 deletions
diff --git a/sysdeps/powerpc/powerpc32/405/strcpy.S b/sysdeps/powerpc/powerpc32/405/strcpy.S
deleted file mode 100644
index 2a554dc32e..0000000000
--- a/sysdeps/powerpc/powerpc32/405/strcpy.S
+++ /dev/null
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-/* Optimized strcpy implementation for PowerPC476.
- Copyright (C) 2010-2017 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, see
- <http://www.gnu.org/licenses/>. */
-
-#include <sysdep.h>
-
-/* strcpy
-
- Register Use
- r3:destination and return address
- r4:source address
- r10:temp destination address
-
- Implementation description
- Loop by checking 2 words at a time, with dlmzb. Check if there is a null
- in the 2 words. If there is a null jump to end checking to determine
- where in the last 8 bytes it is. Copy the appropriate bytes of the last
- 8 according to the null position. */
-
-EALIGN (strcpy, 5, 0)
- neg r7,r4
- subi r4,r4,1
- clrlwi. r8,r7,29
- subi r10,r3,1
- beq L(pre_word8_loop)
- mtctr r8
-
-L(loop):
- lbzu r5,0x01(r4)
- cmpi cr5,r5,0x0
- stbu r5,0x01(r10)
- beq cr5,L(end_strcpy)
- bdnz L(loop)
-
-L(pre_word8_loop):
- subi r4,r4,3
- subi r10,r10,3
-
-L(word8_loop):
- lwzu r5,0x04(r4)
- lwzu r6,0x04(r4)
- dlmzb. r11,r5,r6
- bne L(byte_copy)
- stwu r5,0x04(r10)
- stwu r6,0x04(r10)
- lwzu r5,0x04(r4)
- lwzu r6,0x04(r4)
- dlmzb. r11,r5,r6
- bne L(byte_copy)
- stwu r5,0x04(r10)
- stwu r6,0x04(r10)
- lwzu r5,0x04(r4)
- lwzu r6,0x04(r4)
- dlmzb. r11,r5,r6
- bne L(byte_copy)
- stwu r5,0x04(r10)
- stwu r6,0x04(r10)
- lwzu r5,0x04(r4)
- lwzu r6,0x04(r4)
- dlmzb. r11,r5,r6
- bne L(byte_copy)
- stwu r5,0x04(r10)
- stwu r6,0x04(r10)
- b L(word8_loop)
-
-L(last_bytes_copy):
- stwu r5,0x04(r10)
- subi r11,r11,4
- mtctr r11
- addi r10,r10,3
- subi r4,r4,1
-
-L(last_bytes_copy_loop):
- lbzu r5,0x01(r4)
- stbu r5,0x01(r10)
- bdnz L(last_bytes_copy_loop)
- blr
-
-L(byte_copy):
- blt L(last_bytes_copy)
- mtctr r11
- addi r10,r10,3
- subi r4,r4,5
-
-L(last_bytes_copy_loop2):
- lbzu r5,0x01(r4)
- stbu r5,0x01(r10)
- bdnz L(last_bytes_copy_loop2)
-
-L(end_strcpy):
- blr
-END (strcpy)
-libc_hidden_builtin_def (strcpy)