github.com/riscv/riscv-go@v0.0.0-20200123204226-124ebd6fcc8e/riscvtest/cputicks/cputicks.s (about)

     1  #include "textflag.h"
     2  
     3  // int64 cputicks(void)
     4  TEXT ·cputicks(SB),NOSPLIT,$0-8
     5  	WORD	$0xc0102573	// rdtime a0
     6  	MOV	A0, ret+0(FP)
     7  	RET