return &Arch{
		LinkArch:       linkArch,
		Instructions:   instructions,
		Register:       register,
		RegisterPrefix: registerPrefix,
		RegisterNumber: loong64RegisterNumber,
		IsJump:         jumpLoong64,
	}
}

func archRISCV64(shared bool) *Arch {
	register := make(map[string]int16)

	// Standard register names.
	for i := riscv.REG_X0; i <= riscv.REG_X31; i++ {