Vector table structure in ARM Architecture - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to identify the first entry in the ARM vector table.

ARM Architecture

The first entry in the vector table is the initial [1] value.

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Astatus register

Bprogram counter

Cstack pointer

Dlink register

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing the first entry with the reset handler address.

Thinking the program counter is the first entry.

The ARM vector table starts with the initial stack pointer value, which sets up the stack before execution begins.

2fill in blank

medium

Complete the code to identify the second entry in the ARM vector table.

ARM Architecture

The second entry in the vector table holds the address of the [1] handler.

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Afault

Binterrupt

Cexception

Dreset

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing reset handler with interrupt handler.

Assuming the first entry is the reset handler.

The second entry is the reset handler address, which is the starting point of program execution after reset.

3fill in blank

hard

Fix the error in the description of the vector table entries.

ARM Architecture

The vector table entries are located at address [1] in memory.

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A0x00000000

B0x10000000

C0x20000000

D0xFFFFFFFF

Attempts:

3 left

💡 Hint

Common Mistakes

Assuming vector table is at a high memory address.

Confusing vector table location with stack location.

The ARM vector table is located at the start of memory, address 0x00000000, by default.

4fill in blank

hard

Fill both blanks to describe the vector table entries for exceptions and interrupts.

ARM Architecture

Entries after the reset handler include [1] and [2] vectors.

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ANMI

Bstack pointer

CIRQ

Dprogram counter

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up stack pointer with interrupt vectors.

Confusing program counter with vector entries.

After the reset handler, the vector table includes the Non-Maskable Interrupt (NMI) and Interrupt Request (IRQ) vectors.

5fill in blank

hard

Fill all three blanks to complete the vector table entry description.

ARM Architecture

The vector table is an array of [1]-bit addresses starting at [2], with the first entry as the [3] pointer.

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A32

B0x00000000

Cinitial stack

D16

Attempts:

3 left

💡 Hint

Common Mistakes

Assuming 16-bit addresses in the vector table.

Confusing the initial stack pointer with the program counter.

The ARM vector table consists of 32-bit addresses starting at address 0x00000000, with the first entry holding the initial stack pointer.