Answer by ady for How is the I/O Address Space mapped to devices?
If one were to write a real-mode assembler programISRs are what you may be after (Interrupt Service Routines).; This is a list of interrupt handler addresses stored in the first segment of memory....
View ArticleAnswer by old_timer for How is the I/O Address Space mapped to devices?
On an x86 pc the bios normally manages allocation of the flat/physical address space, and everything uses some place in that space. So the BIOS will "enumerate" the pcie devices by going out on each...
View ArticleHow is the I/O Address Space mapped to devices?
I hope the question is phrased well enough for someone to understand.I understand that main memory (RAM) and for Port I/O driven I/O, it has it's own Address Space that Instructions like IN, OUT use.If...
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