Mercurial > hg > truffle
diff src/os_cpu/linux_x86/vm/linux_x86_32.s @ 1930:2d26b0046e0d
Merge.
author | Thomas Wuerthinger <wuerthinger@ssw.jku.at> |
---|---|
date | Tue, 30 Nov 2010 14:53:30 +0100 |
parents | d93949c5bdcc |
children | 0a8e0d4345b3 4fc084dac61e |
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--- a/src/os_cpu/linux_x86/vm/linux_x86_32.s Mon Nov 29 18:32:30 2010 +0100 +++ b/src/os_cpu/linux_x86/vm/linux_x86_32.s Tue Nov 30 14:53:30 2010 +0100 @@ -1,5 +1,5 @@ # -# Copyright 2004-2007 Sun Microsystems, Inc. All Rights Reserved. +# Copyright (c) 2004, 2007, Oracle and/or its affiliates. All rights reserved. # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. # # This code is free software; you can redistribute it and/or modify it @@ -16,9 +16,9 @@ # 2 along with this work; if not, write to the Free Software Foundation, # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. # -# Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, -# CA 95054 USA or visit www.sun.com if you need additional information or -# have any questions. +# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA +# or visit www.oracle.com if you need additional information or have any +# questions. # @@ -121,10 +121,10 @@ jnz 3b addl %esi,%edi 4: movl %eax,%ecx # byte count less prefix - andl $3,%ecx # suffix byte count +5: andl $3,%ecx # suffix byte count jz 7f # no suffix # copy suffix -5: xorl %eax,%eax + xorl %eax,%eax 6: movb (%esi,%eax,1),%dl movb %dl,(%edi,%eax,1) addl $1,%eax @@ -159,10 +159,10 @@ # copy dwords, aligned or not 3: rep; smovl 4: movl %eax,%ecx # byte count - andl $3,%ecx # suffix byte count +5: andl $3,%ecx # suffix byte count jz 7f # no suffix # copy suffix -5: subl %esi,%edi + subl %esi,%edi addl $3,%esi 6: movb (%esi),%dl movb %dl,(%edi,%esi,1) @@ -214,10 +214,10 @@ # copy aligned dwords 3: rep; smovl 4: movl %eax,%ecx - andl $3,%ecx +5: andl $3,%ecx jz 7f # copy suffix -5: xorl %eax,%eax + xorl %eax,%eax 6: movb (%esi,%eax,1),%dl movb %dl,(%edi,%eax,1) addl $1,%eax @@ -250,9 +250,9 @@ jnz 3b addl %esi,%edi 4: movl %eax,%ecx - andl $3,%ecx +5: andl $3,%ecx jz 7f -5: subl %esi,%edi + subl %esi,%edi addl $3,%esi 6: movb (%esi),%dl movb %dl,(%edi,%esi,1) @@ -287,11 +287,12 @@ andl $3,%eax # either 0 or 2 jz 1f # no prefix # copy prefix + subl $1,%ecx + jl 5f # zero count movw (%esi),%dx movw %dx,(%edi) addl %eax,%esi # %eax == 2 addl %eax,%edi - subl $1,%ecx 1: movl %ecx,%eax # word count less prefix sarl %ecx # dword count jz 4f # no dwords to move @@ -454,12 +455,13 @@ ret .=.+10 2: subl %esi,%edi + jmp 4f .p2align 4,,15 3: movl (%esi),%edx movl %edx,(%edi,%esi,1) addl $4,%esi - subl $1,%ecx - jnz 3b +4: subl $1,%ecx + jge 3b popl %edi popl %esi ret @@ -467,19 +469,20 @@ std leal -4(%edi,%ecx,4),%edi # to + count*4 - 4 cmpl $32,%ecx - ja 3f # > 32 dwords + ja 4f # > 32 dwords subl %eax,%edi # eax == from + count*4 - 4 + jmp 3f .p2align 4,,15 2: movl (%eax),%edx movl %edx,(%edi,%eax,1) subl $4,%eax - subl $1,%ecx - jnz 2b +3: subl $1,%ecx + jge 2b cld popl %edi popl %esi ret -3: movl %eax,%esi # from + count*4 - 4 +4: movl %eax,%esi # from + count*4 - 4 rep; smovl cld popl %edi