Top "Cortex-a8" questions

How to measure program execution time in ARM Cortex-A8 processor?

I'm using an ARM Cortex-A8 based processor called as i.MX515. There is linux Ubuntu 9.10 distribution. I'm running a very …

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How does one do integer (signed or unsigned) division on ARM?

I'm working on Cortex-A8 and Cortex-A9 in particular. I know that some architectures don't come with integer division, but what …

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ARM Cortex-A8: Whats the difference between VFP and NEON

In ARM Cortex-A8 processor, I understand what NEON is, it is an SIMD co-processor. But is VFP(Vector Floating Point) …

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Why ARM NEON not faster than plain C++?

Here is a C++ code: #define ARR_SIZE_TEST ( 8 * 1024 * 1024 ) void cpp_tst_add( unsigned* x, unsigned* y ) { for ( register int …

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How to call C functions from ARM Assembly?

I'm writing code targeting ARM Cortex-A on Android devices (using GNU assembler and compiler), and I'm trying to interface between …

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Android JNI makefiles: where to set CFLAGS?

I'm stuck figuring out how exactly to tell Android to use VFP on Cortex-A8 for floating-point operations in my native …

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Neon Optimization using intrinsics

Learning about ARM NEON intrinsics, I was timing a function that I wrote to double the elements in an array.…

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[ARM CortexA]Difference between Strongly-ordered and Device Memory Type

I am really a new starter to Cortex A and I am aware the ARM applies weakly-ordered memory model, and …

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