https://www.kad8.com/tags/idt/ Recent content in IDT on KAD Hugo -- gohugo.io en © 2026 Sun, 16 Aug 2026 21:33:20 +0800 https://www.kad8.com/software/x86-bios-interrupts-idt-interrupt-gates-and-isr-execution/ Sun, 16 Aug 2026 21:33:20 +0800 https://www.kad8.com/software/x86-bios-interrupts-idt-interrupt-gates-and-isr-execution/ <blockquote> <p>x86 BIOS Interrupts: IDT, Interrupt Gates, and ISR Execution</p></blockquote> <p>Interrupt handling is one of the fundamental mechanisms connecting the x86 processor with hardware, software, and exceptional execution conditions. In BIOS and low-level firmware development, understanding interrupts requires more than knowing how to invoke an <code>INT</code> instruction: developers must understand interrupt vectors, descriptor tables, privilege checks, CPU-generated stack frames, and the transition into and out of interrupt service routines.</p>