arm

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Is it atomic to access(load/store) 32 bit integer when using ARM Thumb instruction set?

Using ARM cortex wit开发者_开发知识库h thumb instruction set and Keil realview compiler, is it safe to access to 32 bit integer?Since the thumb register set is 16 bits, does this mean, fetching a 32 b[详细]

2023-03-13 21:57 分类：问答
Fastest way to convert an unsigned char image to a float image on iPhone

开发者_开发技巧I need to convert an unsigned char image (640x480x1) or smaller to a float image for processing. I can\'t do fixed-point computation in this case due to the problem complexity. I curren[详细]

2023-03-13 15:49 分类：问答
valgrind on the ARM9?

I see that valgrind has an ARM7 target, but I find conflic开发者_如何转开发ting information on whether valgrind has support for the ARM9. The ARM9 target I am working with is running linux.[详细]

2023-03-13 08:02 分类：问答
GNU Make can never find perl?

I sometimes get this error when compiling a program: make[1]: /usr/bin/perl: Command not found make[1]: *** [links] Error 127[详细]

2023-03-12 19:20 分类：问答
ctor init not calling the global ctor instances in library

I\'m developing an application and a library using SourceryGpp lite for arm. I\'m not using standard libs or default start files.[详细]

2023-03-12 11:30 分类：问答
ARM926EJ-S cycle-counter

Im using an ARM926EJ-S and am trying to figure out whether the ARM can give (e.g. a readable regis开发者_C百科ter) the CPU\'s cycle-counter. I guess a # that will represent the number of cycles since[详细]

2023-03-12 00:40 分类：问答
Why doesn't ARM 11 or earlier support Adobe Flash player?

Why doesn\'t ARM 11 or earlier support Adobe Flash player (Android version)? If you can explain it in dept开发者_如何学运维h, you will be highly appreciated.Here\'s a great thread on the topic.[详细]

2023-03-11 20:16 分类：问答
python-MySQLdb iphone

Does anybody know where to get python-MySQLdb compiled for the arm iPhone architecture? or how to do it?[详细]

2023-03-11 18:04 分类：问答
Compiling Perl on ARM: Undefined reference to '__stack_chk_guard'

Right, so I\'m compiling perl on an ARM device. It configures fine, so I start the compiling process. After the dependencies are done, I get this output:[详细]

2023-03-11 07:05 分类：问答
Injecting code into executable at runtime

I\'m working on application (written in C++), which generate some machine code at runtime (Linux, x86-64 now, but I plan to migrate on ARM). Next it store generated code in memory and execute it by ju[详细]

2023-03-10 12:24 分类：问答