2
votes
Does a `long` ban make sense?
Today I assume that char = 8 bit, short = 16 bit, int = 32 bit, long = 32 or 64 bit, no guarantee either way, long long and int64_t = 64 bit on any device that I write software for, with any compiler.
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- 47.5k
1
vote
What is meant by /0 in AMD64 specification?
FF /0
Notation indicating that FF is the first byte of an opcode, and a subopcode in the ModR/M byte has a value of 0.
Here, for example, the ADD, ADC, and AND instructions all use ...
- 34.4k
1
vote
Perfomance of 8 bit operations on 64 bit architechture
On a typical 64 bit processor, 64 bit operations are a tiny, tiny bit faster than smaller operations. However, if you have the same number of items with four or eight times more storage, you will pay ...
- 47.5k
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