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mpeglib/lib/util/mmxflags_asm.S

 

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#ifdef HAVE_CONFIG_H

 

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#include "config.h"

 

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#endif

 

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#ifdef INTEL

 

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.data

 

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        .align 16

 

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        .type    flags,@object

 

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flags: .long 0

 

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.text

 

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        .align 4

 

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.globl cpu_flags

 

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        .type    cpu_flags,@function

 

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cpu_flags: 

 

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        pushfl

 

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        popl %eax

 

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        movl %eax,%ecx

 

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        xorl $0x040000,%eax

 

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        pushl %eax

 

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        popfl

 

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        pushfl

 

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        popl %eax

 

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        xorl %ecx,%eax

 

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        jz cpu_flags.L1   # Processor is 386

 

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        pushl %ecx

 

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        popfl

 

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        movl %ecx,%eax

 

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        xorl $0x200000,%eax

 

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        pushl %eax

 

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        popfl

 

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        pushfl

 

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        popl %eax

 

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        xorl %ecx,%eax

 

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        je cpu_flags.L1

 

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        pusha

 

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        movl $1,%eax

 

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        cpuid

 

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        movl %edx,flags

 

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        popa

 

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        movl flags,%eax

 

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cpu_flags.L1: 

 

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        ret

 

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.Lfe1:

 

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        .size    cpu_flags,.Lfe1-cpu_flags

 

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#endif /* INTEL */

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