github.com/GeniusesGroup/libgo@v0.0.0-20220929090155-5ff932cb408e/cpu/core.s (about)

     1  // func ActiveCoreID() uint64
     2  TEXT ·ActiveCoreID(SB),7,$0
     3  	MOVQ $0xB,AX
     4  	XORQ CX,CX
     5  	CPUID
     6  	MOVQ DX,ret+0(FP)
     7  	RET