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86 lines
1.4 KiB
86 lines
1.4 KiB
; Copyright 2002-2019 Intel Corporation.
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;
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; This software is provided to you as Sample Source Code as defined in the accompanying
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; End User License Agreement for the Intel(R) Software Development Products ("Agreement")
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; section 1.L.
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;
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; This software and the related documents are provided as is, with no express or implied
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; warranties, other than those that are expressly stated in the License.
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PUBLIC SupportsAvx
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PUBLIC Do_Xsave
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PUBLIC Do_Fxsave
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PUBLIC Do_Xrstor
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PUBLIC Do_Fxrstor
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.code
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SupportsAvx PROC
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push rbp
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mov rbp, rsp
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push rax
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push rbx
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push rcx
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push rdx
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push rsi
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mov rax, 1
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cpuid
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and ecx, 0018000000h
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cmp ecx, 0018000000h
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jne $lNOT_SUPPORTED
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mov ecx, 0
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BYTE 00Fh
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BYTE 001h
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BYTE 0D0h
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and eax, 6
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cmp eax, 6
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jne $lNOT_SUPPORTED
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mov rax, 1
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jmp $lDONE3
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$lNOT_SUPPORTED:
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mov rax, 0
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$lDONE3:
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pop rsi
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pop rdx
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pop rcx
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pop rbx
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mov rsp, rbp
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pop rbp
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ret
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SupportsAvx ENDP
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.code
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Do_Xsave PROC
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xor rdx,rdx
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mov rax,7
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ret
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Do_Xsave ENDP
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.code
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Do_Fxsave PROC
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fxsave xmmword ptr[rcx]
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ret
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Do_Fxsave ENDP
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.code
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Do_Xrstor PROC
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xor rdx,rdx
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mov rax,7
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ret
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Do_Xrstor ENDP
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.code
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Do_Fxrstor PROC
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fxrstor xmmword ptr[rcx]
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ret
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Do_Fxrstor ENDP
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end
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