ARM EN0-001 - ARM Accredited Engineer Exam
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Total 210 questions
Question #6 (Topic: )
An Advanced SIMD intrinsic has the prototype:
int16x4_t vmul_n_s16(int16x4_t a, int16_t b);
How many multiplications does this intrinsic compute?
int16x4_t vmul_n_s16(int16x4_t a, int16_t b);
How many multiplications does this intrinsic compute?
A. 1 multiplication
B. 4 multiplications
C. 16 multiplications
D. 64 multiplications
Answer: B
Question #7 (Topic: )
Cross compiling enables a programmer to:
A. Produce a binary object that will run on processors based on any architecture.
B. Mix different source languages within the same source file and compile with a single tool.
C. Run code written for one processor on a processor based on a different architecture.
D. Compile target code using a computer based on a different architecture.
Answer: D
Question #8 (Topic: )
Many ARM cores provide two instruction sets, ARM and Thumb. Which THREE of the
following statements apply to the Thumb instruction set implemented for the ARMv7-A
architecture? (Choose three)
following statements apply to the Thumb instruction set implemented for the ARMv7-A
architecture? (Choose three)
A. Thumb is a hybrid 16/32-bit instruction set
B. No Thumb instructions can be conditionally executed
C. Thumb code is always slower than the equivalent ARM code
D. Some routines take more instructions in Thumb code than in the equivalent ARM code
E. The Thumb instruction set can access the Advanced SIMD "NEON" instructions
F. Thumb code is always more power-efficient than equivalent ARM code
Answer: A,D,E
Question #9 (Topic: )
Which one of these statements is TRUE about code running on final hardware without a
debugger attached?
debugger attached?
A. FIQ exceptions must not be taken
B. The instruction cache must be enabled
C. Global variables must be initialized to zero
D. The Reset Vector must reside in non-volatile memory
Answer: D
Question #10 (Topic: )
Is it possible to use an interrupt controller based on the Generic Interrupt Controller (GIC)
architecture in a device built around a single core Cortex-A9 MPCore processor?
architecture in a device built around a single core Cortex-A9 MPCore processor?
A. No, they are completely incompatible
B. Yes, all Cortex-A9 MPCore processors include an integrated GIC
C. Yes, but a dummy second processor has to be included
D. No, a GIC is only compatible with multi-core Cortex-A9 processors
Answer: B
