diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/sparc/lib/strlen.S')
| -rw-r--r-- | ANDROID_3.4.5/arch/sparc/lib/strlen.S | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/ANDROID_3.4.5/arch/sparc/lib/strlen.S b/ANDROID_3.4.5/arch/sparc/lib/strlen.S deleted file mode 100644 index 536f8350..00000000 --- a/ANDROID_3.4.5/arch/sparc/lib/strlen.S +++ /dev/null @@ -1,80 +0,0 @@ -/* strlen.S: Sparc optimized strlen code - * Hand optimized from GNU libc's strlen - * Copyright (C) 1991,1996 Free Software Foundation - * Copyright (C) 1996,2008 David S. Miller (davem@davemloft.net) - * Copyright (C) 1996, 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#include <linux/linkage.h> -#include <asm/asm.h> - -#define LO_MAGIC 0x01010101 -#define HI_MAGIC 0x80808080 - - .text -ENTRY(strlen) - mov %o0, %o1 - andcc %o0, 3, %g0 - BRANCH32(be, pt, 9f) - sethi %hi(HI_MAGIC), %o4 - ldub [%o0], %o5 - BRANCH_REG_ZERO(pn, %o5, 11f) - add %o0, 1, %o0 - andcc %o0, 3, %g0 - BRANCH32(be, pn, 4f) - or %o4, %lo(HI_MAGIC), %o3 - ldub [%o0], %o5 - BRANCH_REG_ZERO(pn, %o5, 12f) - add %o0, 1, %o0 - andcc %o0, 3, %g0 - BRANCH32(be, pt, 5f) - sethi %hi(LO_MAGIC), %o4 - ldub [%o0], %o5 - BRANCH_REG_ZERO(pn, %o5, 13f) - add %o0, 1, %o0 - BRANCH32(ba, pt, 8f) - or %o4, %lo(LO_MAGIC), %o2 -9: - or %o4, %lo(HI_MAGIC), %o3 -4: - sethi %hi(LO_MAGIC), %o4 -5: - or %o4, %lo(LO_MAGIC), %o2 -8: - ld [%o0], %o5 -2: - sub %o5, %o2, %o4 - andcc %o4, %o3, %g0 - BRANCH32(be, pt, 8b) - add %o0, 4, %o0 - - /* Check every byte. */ - srl %o5, 24, %g7 - andcc %g7, 0xff, %g0 - BRANCH32(be, pn, 1f) - add %o0, -4, %o4 - srl %o5, 16, %g7 - andcc %g7, 0xff, %g0 - BRANCH32(be, pn, 1f) - add %o4, 1, %o4 - srl %o5, 8, %g7 - andcc %g7, 0xff, %g0 - BRANCH32(be, pn, 1f) - add %o4, 1, %o4 - andcc %o5, 0xff, %g0 - BRANCH32_ANNUL(bne, pt, 2b) - ld [%o0], %o5 - add %o4, 1, %o4 -1: - retl - sub %o4, %o1, %o0 -11: - retl - mov 0, %o0 -12: - retl - mov 1, %o0 -13: - retl - mov 2, %o0 -ENDPROC(strlen) |