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ARM Accredited Engineer Questions and Answers

Question 13

An external debugger would need to clean the contents of the processor data cache in which of the following cases?

When it changes the contents of ARM registers (r0-r15)

When it displays the contents of an area of cacheable data

When it displays the contents of an area of cacheable code

When it sets a software breakpoint

Question 14

Which one of these statements is TRUE about code running on final hardware without a debugger attached?

FIQ exceptions must not be taken

The instruction cache must be enabled

Global variables must be initialized to zero

The Reset Vector must reside in non-volatile memory

Question 15

An undefined instruction will cause an Undefined Instruction exception to be taken when:

It is fetched.

It is decoded.

It is executed.

It writes back its results.

Question 16

An Advanced SIMD intrinsic has the prototype:

uint8xl6x2_t vld2q_u8 (uint8_t const * ptr);

How many bytes does this intrinsic load from memory?

256