That is a Specific type of read cycle implicitly resolved towards the interrupt controller, which returns an interrupt vector. The 32-little bit address industry is dismissed. One doable implementation is always to generate an interrupt accept cycle on an ISA bus employing a PCI/ISA bus bridge. PCI delivers different memory https://nathanlabsadvisory.com/why-iso-17025-certification-in-uae-is-essential-for-your-laboratory/