diff options
Diffstat (limited to 'sys/lib/libkern/arch/sparc')
| -rw-r--r-- | sys/lib/libkern/arch/sparc/memmove.S | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/sys/lib/libkern/arch/sparc/memmove.S b/sys/lib/libkern/arch/sparc/memmove.S index 8d2d3e62c96..504037dbbc6 100644 --- a/sys/lib/libkern/arch/sparc/memmove.S +++ b/sys/lib/libkern/arch/sparc/memmove.S @@ -1,4 +1,4 @@ -/* $OpenBSD: memmove.S,v 1.4 2013/06/13 19:33:58 deraadt Exp $ */ +/* $OpenBSD: memmove.S,v 1.5 2013/06/15 19:36:59 miod Exp $ */ /* * Copyright (c) 1996 @@ -197,16 +197,19 @@ Lbcopy_fancy: dec 4, %o2 ! } 1: Lbcopy_doubles: + mov %o5, %o3 ! save return value +1: ldd [%o0], %o4 ! do { std %o4, [%o1] ! *(double *)dst = *(double *)src; inc 8, %o0 ! dst += 8, src += 8; deccc 8, %o2 ! } while ((len -= 8) >= 0); - bge Lbcopy_doubles + bge 1b inc 8, %o1 ! check for a usual case again (save work) btst 7, %o2 ! if ((len & 7) == 0) be Lbcopy_done ! goto bcopy_done; + mov %o3, %o5 ! [delay slot: restore return value] btst 4, %o2 ! if ((len & 4) == 0) be,a Lbcopy_mopw ! goto mop_up_word_and_byte; @@ -415,5 +418,3 @@ Lback_mopb: stb %o4, [%o1 - 1] ! } retl ! dst[-1] = b; mov %o5, %o0 ! return (dst) - - |