How does the ARM architecture differ from x86? [closed]
Feb 10, 2013 · The ARM architecture was originally designed for Acorn personal computers (See Acorn Archimedes, circa 1987, and RiscPC), which were just as much keyboard-based personal computers as were x86 based IBM PC models. Only later ARM implementations were primarily targeted at the mobile and embedded market segment.
Using objdump for ARM architecture: Disassembling to ARM
To disassemble arm object file use arm-linux-gnueabi-objdump. In Ubuntu, "arm-linux-gnueabi-objdump" is the default disassembler for ARM binaries - no compilation is needed. To install it, just do: sudo apt-get install binutils-arm-linux-gnueabi. There are also other binaries inside this package that can further analyze the ARM binaries for you.
c++ - Detecting CPU architecture compile-time - Stack Overflow
Oct 18, 2018 · What is the most reliable way to find out CPU architecture when compiling C or C++ code? As far as I can tell, different compilers have their own set of non-standard preprocessor definitions (_M_X8...
How to detect target architecture using CMake? - Stack Overflow
Aug 14, 2012 · This is a well tested way of knowing the host architecture: # Store in CMAKE_DEB_HOST_ARCH var the current build architecture execute_process(COMMAND dpkg-architecture -qDEB_HOST_ARCH OUTPUT_VARIABLE CMAKE_DEB_HOST_ARCH OUTPUT_STRIP_TRAILING_WHITESPACE ) And use that information later in CMakeLists as …
Differences between ARM architectures from a C programmer's …
Mar 16, 2014 · The ARM7TDMI (ARMv4T architecture) knows both ARM and Thumb, as do almost all subsequent ARM systems except the Cortex-M. ARM and Thumb code can be mixed together within the same application, as long as the proper glue is inserted where conventions change; this is called thumb interworking and can be handled automatically by the C compiler.
What are SP (stack) and LR in ARM? - Stack Overflow
From the ARM architecture reference: SP, the Stack Pointer. Register R13 is used as a pointer to the active stack. In Thumb code, most instructions cannot access SP. The only instructions that can access SP are those designed to use SP as a stack pointer. The use of SP for any purpose other than as a stack pointer is deprecated.
armv6 - ARM Architecture and Family - Stack Overflow
Nov 2, 2012 · The ARM architectures are modular so families may implement only some features of the architecture and not others. Families may also have extensions not in the architecture and to make things even more interesting cores in the same family will usually differ in …
boot - What is the booting process for ARM? - Stack Overflow
May 26, 2011 · At the end, OS code starts to run. For ARM architecture, what is the booting process after use press the power button? This answer is mainly in the context or modern Cortex-A CPUs; there are a great variety of ARM platforms. However, for an ARM that is PC like (tablet, cell phone, etc) ...
In ARM manuals, what's the difference between res0 and res1?
RES0 is properly defined in the ARMv8 Architecture Reference Manual (see also the standard ARM glossary), but in summary it means a reserved field with an unknown value, which software must write with all 0s upon initialisation, then preserve (via read-modify-write operations on the register). Notably, software should not rely on the field ...
error unknown or unsupported arm architecture - Stack Overflow
Feb 12, 2015 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand