This Wikipedia article on word sizes provides a table of word sizes in different computer architectures. It has different columns like 'integer size', ...

The code writes a function that takes a string consisting of one or more space separated words, and returns an object that shows the number of words o ...

aarch64 use str/ldr to store/load register into memory: In the example above, q0/q1 is 128bit, as well as x1/x0 is 64bit, but how does str/ldp know ...

I mounted ubuntu/trusty64 vagrant box (https://app.vagrantup.com/ubuntu/boxes/trusty64) and I have the following code: which shows the output of: ...

I have following C function: It produces following assembly code(gcc with 0 optimization, 64 bit machine): Questions: Why buffer occupies 20 ...

Bypassing the obvious "why??", does anyone know of any 32-bit versions of OPENCL from Nvidia or Intel for Ubuntu? I looked but, i could not find anyt ...

I have a problem using atomicAdd under CUDA 7. atomicAdd is defined for "int", "unsigned int" and "unsigned long long int" stating it uses "the 32 or ...

For example, in case of 32-bit processors, a word is 4-byte long. Is it also possible to use 5-byte word or others? ...

Notice that the ratio between 64-bit and 32-bit float ops is different on different hardware. For example, recently NVidia improved 64-bit performance ...

I'm having problems with the result of my implementation. If you traced it, it seems to be right. However, it gives the wrong result. If you input 99 ...

It's common knowledge that many CPU architectures (ARM, PPC) can not read odd addresses but will generate an exception if forced too, and yet others c ...

Consider the following program When compiling using MinGW I get sizeof(Foo)=12 and sizeof(Bar)=12 on both 32-bit and 64-bit systems (I guess that i ...

What are the sizes of tword, oword and yword operands, as used in the NASM/YASM manual? And on a related note, is there a trick or underlying idea to ...

Simply put in C and variants (unlike that wuss java with its virtual machine) the size of primitive types on different targets can vary greatly, and t ...

Already read through this related question, but was looking for something a little more specific. Is there a way to tell your compiler specificall ...

I often see pprograms like this, where Int64 is an absolute performance killer on 32-bit platforms. My question is now: If I need a specific word len ...

During the transition from 16 to 32 bit in the 80s, int was either 16 or 32 bit. Using the current 64 bit transition nomenclature, I understand there ...

How do I determine the word size of my CPU? If I understand correct an int should be one word right? I'm not sure if I am correct. So should just pr ...