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EN0-001 – ARM Accredited Engineer

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Showing 13–15 of 15 questions

Question 13

A function written in C has the prototype:

void my_function(float a. double b, float c);

The function is built and linked into an application using hard floating-point linkage. What registers are used to pass arguments to the function?

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    a->s0; b->d0; c->s1
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    a->s0; b->d1; c->s1
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    a->d0; b->d1; c->d2
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    a->s0; b->d1; c-> s2
Question 14

In general, when programming in C, stack accesses will be reduced by:

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    Disabling inlining.
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    Never passing more than four parameters in function calls.
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    Declaring automatic variables as "packed".
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    Configuring the compiler to optimize for space.
Question 15

Which of the following ARM processors has the best energy efficiency (measured in mW/MHz)?

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    Cortex-M0+
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    Cortex-M4
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    Cortex-R4
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    Cortex-A15