The 64-bit tag has no wiki summary.
0
votes
2answers
144 views
Perfomance of 8 bit operations on 64 bit architechture
I am usually a Python / Database programmer, and I am considering using C for a problem.
I have a set of sequences, 8 characters long with 4 possible characters. My problem involves combining sets of ...
3
votes
1answer
126 views
What are the real life use cases for tagged pointers? [closed]
What are the real life use cases for tagged pointers?
This is mostly coming from reading about small 64-bit systems and possible uses of 64-bit word pointers.
To my understanding tagged pointers are ...
6
votes
3answers
486 views
What is the gain from 64-bit architecture?
I played with 8-bit machines (C64), I used 16-bit machines (Win 3.1), I enjoyed flat 32-bit address space (Linux).
Every time as a user (which was also means being a developer for fun or profit) I ...
19
votes
10answers
1k views
What is the benefit of 64 bit A7 in iPhone
I'm trying to figure out why going to 64 bit processors is such a big deal in an iPhone. I understand that there will be twice as many registers so the processor can work with twice as much data which ...
5
votes
1answer
571 views
Why do some software packages have an “amd64” suffix for 64-bit systems?
When downloading various software packages, and executables for Windows, I always see two different types of executables to download. One just says ...32-bit and the other always says ...amd64. I know ...
3
votes
1answer
224 views
Is a 64-bit Laptop going to be a problem for “Metro” apps? [closed]
I'm looking at a sample Windows 8 C# "Metro" style app (bingPushpin). When I 2-click MainPage.xaml, it gives me, "Design view is unavailable for x64 and ARM target platforms."
My Acer Aspire laptop ...
6
votes
2answers
403 views
When will java change to 64bit addressing and how can we get there faster?
Having to work with large files now, I would like to know when the java libraries will start switching to long for indexing in their methods.
From Inputstreams read(byte[] b, int off, int len) - ...
4
votes
3answers
1k views
Reasons for either 32-bit or 64-bit as development machine
I'm about to make a new Linux install, which will be primarily used for programming. I've seen benchmarks showing speed improvement of 64-bit version, however, I have hard time of telling how much ...
2
votes
2answers
1k views
JRE for 64-bit and 64-bit Java?
FWIK Java can run on 64-bit system, no problem. I'd like to know how Java support 64-bit features, e.g., System.identityHashCode() returns a 32-bit int, it's common to see the object pointer (memory ...
9
votes
5answers
974 views
32-bit / 64-bit processors - what is that feature officially called?
I see talk of CPU's being either 32-bit or 64-bit processors. Information which is often required on download pages
But what is that feature officially called.
i.e What's the inverse of saying "I ...
