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slimsag/gist:294e1a93d3d0f920939f

Created August 25, 2014 22:10
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gistfile1.txt
// avxSupport uses CPUID to check if the CPU supports AVX
// func avxSupport() bool
// Return: +0(FP)
TEXT ·avxSupport(SB),$0
MOVL $0x1, AX
CPUID
// AND ECX, 0x18000000
BYTE $0x81; BYTE $0xE1; BYTE $0x00; BYTE $0x00; BYTE $0x00; BYTE $0x18;
// CMP ECX, 0x18000000
BYTE $0x81; BYTE $0xF9; BYTE $0x00; BYTE $0x00; BYTE $0x00; BYTE $0x18;
JNE notSupported
MOVB $0x1, ret+0(FP)
RET
notSupported:
MOVB $0x0, ret+0(FP)
RET
@Andoryuuta
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Crap, this was 8 years ago? We're getting old. >:(

@slimsag
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slimsag commented Apr 29, 2022

What the duck.

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