On Fri, Sep 17, 2004 at 05:37:39PM +0530, Dhiman, Gaurav wrote: > [...] if interrupts occur on pin 3 of PIC 1 (IRQ 3) [...], then the > bit string the CPU will receive will be "00001011". Similarly if > interrupt occurs on any pin of PIC 2, then the format will be "01110<3 > bits representing the pin number on PIC 2>", so if interrupt occurs on > pin 3 of PIC2 (IRQ 10), then the CPU will receive the "01110011" bit > string. No, the interrupt vector offsets are initialized to 0x20 and 0x28 for PIC1 and PIC2, respectively, in init_8259A. The CPU does not `interpret' the vector number received from the PICs in any way. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
