The Programmable Interrupt Controller (PIC) handles hardware interrupts. Most PC's will have two of them located at different addresses. One handles IRQ's 0 to 7 and the other, IRQ's 8 to 15, giving a total of 15 individual IRQ lines, as the second PIC is cascaded into the first, using IRQ2.
www.beyondlogic.org/interrupts/interupt.htm www.beyondlogic.org/interrupts/interupt.htm
HTML version of the famous Ralf Brown Interrupt List with over 9000 linked pages and 350 indexes making the process of searching much easier. ... Ralf Brown's Interrupt List; Indexed HTML Version - Release 61 ... A Gift to DOS Programmers...
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The following is a brief description of the IRQ's used on IBM compatible computers. ... On most PC's, without a lot of extra cards installed, IRQ's 5, 10, 11 and 15 are usually available. In addition, IRQ's 2 (or 9), 12 and 13 may be available.
www.homeautomationindex.com/irq.html
For PC support staff, it is a valuable guide in determining the cause of odd behaviour. In the virus research community, we are continually referring to it, and referring others to it, ... Back to shelf Computer programming; Amazon.com info for PC Interrupts : A Programmer's Reference to BIOS, DOS, and Third-Party Calls...
www.virtualbookcase.com/book/detail/45002200
Make sure to include the modifications in the program that were discussed in lab.
www.phys.appstate.edu/courses/pcintii.html www.phys.appstate.edu/courses/pcintii.html
The circuit must deactivate all interrupts upon power-up because the status of the register is undefined. The PC's reset-driver signal presets flip-flop ICat power-up and disables IC1's outputs. The resistor pullups ensure that the tri-state interrupt line-drivers of ICand ICare inactive and can't assert any interrupts.
www.edn.com/archives/1994/111094/23di2.htm
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www.faqs.org/faqs/msdos-programmer-faq/part1/section-18... www.faqs.org/faqs/msdos-programmer-faq/part1/section-18.html
What are PC Interrupts? ... The way the PC handles interrupts was defined in 1981 with the release of the IBM PC. The original IBM PC had one Intel PIC (Programmable Interrupt Controller), referred to as the Intel 8259a.  This controlled up to 8 interrupts (referred to as IRQ 0 to IRQ 7).  When a new card or device...
www.gjr.k12.pa.us/Student/cct/Library/pc_and_dos_founda... www.gjr.k12.pa.us/Student/cct/Library/pc_and_dos_foundation/manual/web/pc_and_dos_foundation_manual_educational_webp9.htm
; Other versions by this Author ... New Price N/A; List Price $19.95 eVIP Price $14.79; ... Cover Art for Programming With MS DOS and PC DOS Interrupts in Assembly Language...
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Zurück zum PC Info . ... IBM PC Hardware Interrupt Table (in order of priority) ... INT 15,0 - Turn Cassette Motor On (PC,PCjr only)
www.htl-steyr.ac.at/~morg/pcinfo/hardware/interrupts/in... www.htl-steyr.ac.at/~morg/pcinfo/hardware/interrupts/inte1at0.htm
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