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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-30 17:23:31 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-30 17:23:31 -0800 |
| commit | 6de71484cf9561edb45224f659a9db38b6056d5e (patch) | |
| tree | 588fe6f7c98147b805085503c863d371e2fa497e /arch/sparc/lib/memmove.S | |
| parent | 1dff81f20cd55ffa5a8ee984da70ce0b99d29606 (diff) | |
| parent | e3c6d4ee545e427b55882d97d3b663c6411645fe (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6: (98 commits)
sparc: move select of ARCH_SUPPORTS_MSI
sparc: drop SUN_IO
sparc: unify sections.h
sparc: use .data.init_task section for init_thread_union
sparc: fix array overrun check in of_device_64.c
sparc: unify module.c
sparc64: prepare module_64.c for unification
sparc64: use bit neutral Elf symbols
sparc: unify module.h
sparc: introduce CONFIG_BITS
sparc: fix hardirq.h removal fallout
sparc64: do not export pus_fs_struct
sparc: use sparc64 version of scatterlist.h
sparc: Commonize memcmp assembler.
sparc: Unify strlen assembler.
sparc: Add asm/asm.h
sparc: Kill memcmp_32.S code which has been ifdef'd out for centuries.
sparc: replace for_each_cpu_mask_nr with for_each_cpu
sparc: fix sparse warnings in irq_32.c
sparc: add include guards to kernel.h
...
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 00000000000..97395802c23 --- /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 |