+ register uint32_t reg;
+
+ asm volatile ("mrs %0, ipsr" : "=r"(reg));
+ LOG_ERR("unhandled IRQ %lu\n", reg);
+ while (1)
+ PAUSE;
+}
+
+void sysirq_setPriority(sysirq_t irq, int prio)
+{
+ uint32_t pos = (irq & 3) * 8;
+ reg32_t reg;
+
+ switch (irq >> 2)
+ {
+ case 1:
+ reg = NVIC_SYS_PRI1;
+ break;
+ case 2:
+ reg = NVIC_SYS_PRI2;
+ break;
+ case 3:
+ reg = NVIC_SYS_PRI3;
+ break;
+ default:
+ ASSERT(0);
+ return;
+ }
+ HWREG(reg) &= ~(0xff << pos);
+ HWREG(reg) |= prio << pos;