taglinefilesource code
pic386arch/alpha/kernel/irq.cunsigned long pic;
pic401arch/alpha/kernel/irq.cpic = inb(0x20) | (inb(0xA0) << 8);  /* read isr */
pic402arch/alpha/kernel/irq.cpic &= ~((cache_A1 << 8) | cache_21);  /* apply mask */
pic403arch/alpha/kernel/irq.cpic &= 0xFFFB;        /* mask out cascade */
pic405arch/alpha/kernel/irq.cwhile (pic) {
pic406arch/alpha/kernel/irq.cj = ffz(~pic);
pic407arch/alpha/kernel/irq.cpic &= pic - 1;
pic80include/linux/cdk.hunsigned short  pic;