Questions tagged [64-bit]
The 64-bit tag has no summary.
21 questions
0 votes
0 answers
532 views
Porting a 32-bit Win32 DLL driver to 64-bit when a 64-bit DLL is unavailable in C++
I have a legacy 32-bit Win32 DLL driver that interfaces with a test equipment. I possess the API header file for this driver, and I dynamically load the DLL at runtime within my C++ test application ...
- 127
0 votes
1 answer
161 views
What is meant by /0 in AMD64 specification?
The AMD64 specification talks about /0 with regards to instruction encoding but I don't have a clue what is meant by that. For example, in Volume 3 the ADD instruction has three forms: ADD reg/mem16,...
62 votes
4 answers
23k views
Is there a good reason to run 32-bit software instead of 64-bit on 64-bit machines?
Is there any good reason to supply a 32-bit version along with a 64-bit version of any software targeted at modern desktop machines, running modern 64-bit operating systems on 64-bit hardware? It ...
- 2,883
2 votes
1 answer
165 views
Can 32/64 bit version of Dart SDK have any effect on produced javascript code?
I just started collaborating remotely on a project. Project manager explicitly asked me to download Dart SDK 32bit version. Since I have 64bit machine I asked why to find out more about it. I was told ...
- 883
1 vote
0 answers
7k views
Accessing a 32-bit DLL from a 64-bit process
I'm aware that it's not possible to load a 32-bit DLL into a 64-bit process. The DLL in question is a ODBC driver which is no longer supported (although it works fine) and no 64-bit version of it ...
- 19
0 votes
3 answers
550 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 ...
- 1,891
8 votes
6 answers
1k 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 ...
- 379
5 votes
1 answer
1k 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 ...
- 493