Created
August 25, 2014 22:10
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| // 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 |
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Crap, this was 8 years ago? We're getting old. >:(