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EN0-001 Exam Dumps : ARM Accredited Engineer

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ARM Accredited Engineer Questions and Answers

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Question 1

According to the AAPCS (with soft floating point linkage), when the caller "func" calls sprintf, where is the value of the parameter "x" placed?

#include

void func(double x, int i , char *buffer)

{

sprintf(buffer, "pass %d: value = %f\n", i, x); }

Options:

A.

Split between register R3 and 4 bytes on the stack

B.

Split between registers R3 and R4

C.

8 bytes on the stack

D.

VFP Register D0

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Question 2

Which events would be counted using the Performance Monitoring Unit (PMU) in order to measure the data cache efficiency of an application?

Options:

A.

Memory read instructions, and memory write instructions

B.

Architecturally executed instructions, and instruction fetches causing a cache line refill

C.

Memory access instructions causing a cache line refill, and memory read and write operations causing a cache access

D.

Memory read or write operations causing a cache access, and architecturally executed instructions

Question 3

It is common to declare structures as "packed" in order to minimize data memory size. Which of the following accurately describes the effect of this?

Options:

A.

Members will be stored as bit-fields

B.

Data Aborts will be disabled for all structure accesses

C.

Structure members will be re-ordered so that the smallest are first

D.

Multi-byte members are not required to be naturally aligned

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