_R_ZERO
if (sc->sc_regs[_R_SP] == 0 || sc->sc_regs[_R_ZERO] != (__register_t)0xACEDBADEU)
if ((uint32_t)ksc.sc_regs[_R_ZERO] != 0xacedbadeU)/* magic number */
ksc.sc_regs[_R_ZERO] = 0xACEDBADE; /* magic number */
if ((u_int) ksc.sc_regs[_R_ZERO] != 0xacedbadeU)/* magic number */
if (insn.RType.rd != _R_ZERO) {
[_R_ZERO] = 0,
if (i.RType.rd != _R_ZERO)