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Trending Discussions on neon
QUESTION
In ARM64 compilers with GCC-like __asm__
, how could I make use of multi-vector NEON types like uint8x16x4_t
?
ANSWER
Answered 2022-Apr-11 at 21:01You'll have to do it manually, but you can do so with the T
, U
and V
modifiers. And suffixes can just be specified literally. The following code:
QUESTION
I am attempting to convert a working Makefile into a CMake and need a little assistance. I am trying to cross compile a small program for a yocto device from a Ubuntu20 machine that is trying to link to the devices shared object file with cmake. I have a working Makefile that builds a working program. However, when I try and do this with a CMakeList file it fails at the make stage linking to the shared objects linker flag.
The file structure of the code is as follows;
...ANSWER
Answered 2021-Sep-29 at 23:37QUESTION
I'm using inline assembly in ARM for a scientific application.
In my assembly code, I have to (see note in the end) nominally indicate which vector registers I want to use. For example, in my code, I have asm volatile("fadd v12.4S, v12.4S, v7.4S")
to do a vector floating-point add between vector registers 7 and 12, storing the result in vector register 12, among other inline assembly instructions.
After the 'critical' assembly code part, I want to retrieve the said resulting variables and operate on them as arm neon variables in C. In my case, vectors will have 4x 32-bit variables, so they will be of type float32x4_t
.
So far I can do something like:
...ANSWER
Answered 2022-Mar-05 at 12:13You can use the w
machine constraint to pass SIMD registers as operands to an inline assembly statement. This causes the compiler to pick a SIMD register for you.
QUESTION
I have an h1 element that I want to be invisible and then appear after a few seconds. The element has an ::after pseudo-element that displays a data-text attribute that shadows the h1 element. When I add the animation, I only see the h1 and not the pseudo-element as well. Here is my code
EDIT adding the animation to the pseudo-element makes it appear, but now the data-text appears over the h1 element when originally it is supposed to go behind it. Here are some pic of what is happening. The first is what it is doing and the second is what I want.
EDIT 2 The problem can be recreated by removing the z-index on the pseudo-element.
...ANSWER
Answered 2022-Mar-04 at 20:11You need to apply the animation to the pseudo-element as well.
QUESTION
I am using PHP8, symfony5 and doctrine2 with phpstan and getting these errors:
...ANSWER
Answered 2021-Nov-23 at 09:55You need to configure objectManagerLoader
so that the extension can see the entity metadata.
This will allow DQL validation, and the correct entity repositoryClass
to be inferred when accessing $entityManager->getRepository()
. Add to your phpstan.neon
:
QUESTION
In Java, one can use (from https://www.baeldung.com/java-enum-values#adding-constructor)
...ANSWER
Answered 2022-Feb-21 at 13:06The best way to create enums in Scala is through a basic ADT like this:
QUESTION
I ran the following command, it seems to be stuck, neither error nor success:
...ANSWER
Answered 2022-Feb-14 at 12:43This is a bug in current Ubuntu 22.04 development version filed as bug #1959717 - I guess we have to wait until it gets fixed.
QUESTION
Currently heading of my blogpost on blogger looks like this. So I wanted to remove this "-" like looking element from my blog, which is a ::before
. I tried this advice here and used a little ingenuity to added a CSS like so:
ANSWER
Answered 2022-Feb-13 at 18:44Try using content: ''
instead.
QUESTION
I currently am working on an app that has a list of characters and images associated with each of them.
I want to insert images for all the characters using a for loop without actually hardcoding their image names:
Example:
...ANSWER
Answered 2022-Feb-12 at 10:54You can use string name to get drawable resource identifier:
QUESTION
I am working on a task to convert a large binary label image, which has 8 bits (uint8_t
) per pixel and each pixel can only be 0 or 1 (or 255), to an array of uint64_t
numbers and each bit in uint64_t
number represent a label pixel.
For example,
input array: 0 1 1 0 ... (00000000 00000001 00000001 00000000 ...)
or input array: 0 255 255 0 ... (00000000 11111111 11111111 00000000 ...)
output array (number): 6
(because after convert each uint8_t
to bit, it becomes 0110
)
Currently the C code to achieve this is:
...ANSWER
Answered 2022-Jan-19 at 09:18Assuming the input value is either 0 or 255, below is the basic version which is rather straightforward, especially for people with Intel SSE/AVX experience.
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