ZSWR1_SIE
ZSWR1_RIE | ZSWR1_TIE | ZSWR1_SIE, /* 1: No interrupts yet. ??? */
SET(cs->cs_preg[1], ZSWR1_RIE | ZSWR1_SIE);
SET(cs->cs_preg[1], ZSWR1_RIE | ZSWR1_TIE | ZSWR1_SIE);
CLR(cs->cs_preg[1], ZSWR1_RIE | ZSWR1_TIE | ZSWR1_SIE);
SET(cs->cs_preg[1], ZSWR1_RIE | ZSWR1_TIE | ZSWR1_SIE);
CLR(cs->cs_preg[1], ZSWR1_RIE | ZSWR1_SIE | ZSWR1_TIE);
CLR(cs->cs_preg[1], ZSWR1_RIE | ZSWR1_SIE);
SET(cs->cs_preg[1], ZSWR1_RIE | ZSWR1_SIE);