#define ESP_MHZ_TO_CYCLE(mhertz) ((1000000000) / ((mhertz) / 1000))
#define ESP_TICK(ccf, cycle) ((7682 * (ccf) * (cycle) / 1000))
+/* For our interrupt engine. */
+#define for_each_esp(esp) \
+ for((esp) = espchain; (esp); (esp) = (esp)->next)
+
#endif /* !(_SPARC_ESP_H) */