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| author | Pierre Ossman <drzeus@drzeus.cx> | 2008-12-31 21:56:05 +0300 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2008-12-31 21:56:05 +0300 |
| commit | 418f19ea17a99421b22a64e101e14b6a16bed66d (patch) | |
| tree | 7c21fcc368c63f1f9907deac6d16b30bd371792d /arch/sparc/lib/memmove.S | |
| parent | 98444d3dd975653a4a970ecc0dfc30918da92f60 (diff) | |
| parent | f6e10b865c3ea56bdaa8c6ecfee313b997900dbb (diff) | |
| download | linux-418f19ea17a99421b22a64e101e14b6a16bed66d.tar.xz | |
Merge branch 'master' of ../mmc
Diffstat (limited to 'arch/sparc/lib/memmove.S')
| -rw-r--r-- | arch/sparc/lib/memmove.S | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/sparc/lib/memmove.S b/arch/sparc/lib/memmove.S new file mode 100644 index 000000000000..97395802c23c --- /dev/null +++ b/arch/sparc/lib/memmove.S @@ -0,0 +1,31 @@ +/* memmove.S: Simple memmove implementation. + * + * Copyright (C) 1997, 2004 David S. Miller (davem@redhat.com) + * Copyright (C) 1996, 1997, 1998, 1999 Jakub Jelinek (jj@ultra.linux.cz) + */ + + .text + .align 32 + .globl memmove + .type memmove,#function +memmove: /* o0=dst o1=src o2=len */ + mov %o0, %g1 + cmp %o0, %o1 + bleu,pt %xcc, memcpy + add %o1, %o2, %g7 + cmp %g7, %o0 + bleu,pt %xcc, memcpy + add %o0, %o2, %o5 + sub %g7, 1, %o1 + + sub %o5, 1, %o0 +1: ldub [%o1], %g7 + subcc %o2, 1, %o2 + sub %o1, 1, %o1 + stb %g7, [%o0] + bne,pt %icc, 1b + sub %o0, 1, %o0 + + retl + mov %g1, %o0 + .size memmove, .-memmove |