SREG_DBREAKA
case SREG_DBREAKA + 0:
xtensa_set_sr(v, SREG_DBREAKA + 0);
case SREG_DBREAKA + 1:
xtensa_set_sr(v, SREG_DBREAKA + 1);
xtensa_wsr(info->address, SREG_DBREAKA + reg);