Give examples for maskable interrupts?



Give examples for maskable interrupts?..

Answer / Md. Faizan Khan

The 86 Family (specifically the 8086) supports several maskable interrupts, each with a specific interrupt vector. Here are some examples:

1. Divide by Zero Exception (#DI): This exception occurs when an attempt is made to divide by zero in the processor. Interrupt Vector 0.

2. Breakpoint Exception (#BP): This exception occurs when the TRAP flag is set in the flags register and the debug register DR6 is accessed. Interrupt Vector 3.

3. Overflow Exception (#OF): This exception occurs when a value is too large to be represented by the current data type, usually during arithmetic operations. Interrupt Vector 4.

4. Bound Range Exceeded Exception (#BR): This exception occurs when an attempt is made to read or write beyond the limits of a segment register in real mode. Interrupt Vector 5.

5. Invalid Opcode Exception (#UD): This exception occurs when an invalid opcode is encountered during execution. Interrupt Vector 6.

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