mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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8d2a4dfbec
Original commit message from CVS: Added CPU detection. Added SSE optimisation to mpeg_play Modified the mpeg2 decoder and gstidct to use cpu detection. Cleanups in the mpeg1 and mpeg2 decoders.
45 lines
651 B
ArmAsm
45 lines
651 B
ArmAsm
.text
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.globl gst_cpuid_i386
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.type gst_cpuid_i386,@function
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gst_cpuid_i386:
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pushl %ebp
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movl %esp,%ebp
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pushl %edi
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pushl %ebx
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pushl %ecx
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pushl %edx
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movl 8(%ebp),%eax
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cpuid
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movl 12(%ebp),%edi
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test %edi,%edi
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jz L1
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movl %eax,(%edi)
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L1: movl 16(%ebp),%edi
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test %edi,%edi
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jz L2
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movl %ebx,(%edi)
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L2: movl 20(%ebp),%edi
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test %edi,%edi
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jz L3
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movl %ecx,(%edi)
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L3: movl 24(%ebp),%edi
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test %edi,%edi
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jz L4
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movl %edx,(%edi)
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L4: popl %edx
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popl %ecx
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popl %ebx
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popl %edi
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movl %ebp,%esp
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popl %ebp
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ret
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/ doesn't work in user mode (MSRs are privileged)
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.globl siddisable
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siddisable:
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movl 0x119,%ecx
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rdmsr
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orl 0x200000,%eax
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wrmsr
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ret
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