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Recent questions tagged arm
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arm - Peak FLOPs per cycle for ARM11 and Cortex-A7 cores in Raspberry Pi 1 and 2
I would like to know the peak FLOPs per cycle for the ARM1176JZF-S core in the the Raspberry Pi 1 and ... 32-bit floats every other cycle. See Question&Answers more detail:os...
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arm - What predefined macro can I use to detect the target architecture in Clang?
I would like to write code depending on whether the target architecture is e.g. armv7, armv7s, or arm64. ... (seemingly) still reports arm64. See Question&Answers more detail:os...
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arm - Buildroot package management
I'm using buildroot to create a rootfs running on my ARM platform. I'd like to have a package manager on ... or where to find such informations? See Question&Answers more detail:os...
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Oct 24, 2021
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arm - Linux Clock Architecture
In Linux how is the Clock Architecture implemented. There is a file include/linux/clkdev.h struct clk_lookup { struct ... /Board***/... ? See Question&Answers more detail:os...
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arm - How does linux kernel wake idle processor up when new task created?
I'm newbie on Linux Kernel. Currently, I looked into idle codes and had a quesition. When processor doesn't have ... Please show me the truth :) See Question&Answers more detail:os...
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Oct 24, 2021
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arm - valgrind on the ARM9?
I see that valgrind has an ARM7 target, but I find conflicting information on whether valgrind has support for the ... build it?". Thanks -z See Question&Answers more detail:os...
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Oct 24, 2021
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arm - U-Boot hangs while loading kernel?
I am working on Freescale board imx50evk. I have built the uboot.bin and uImage using LTIB (linux target image ... OK Loading Kernel Image ... See Question&Answers more detail:os...
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Oct 24, 2021
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arm - Trying to load position independent code on cortex-m3
I have an embedded application which will have a bootloader which will decide to run 1 of two applications directly from ... but I am not sure. See Question&Answers more detail:os...
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arm - What does 'bank'ing a register mean?
Reading 'ARM Architecture' on Wikipedia and found the following statement: Registers R0-R7 are the same across all ... banking a register mean? See Question&Answers more detail:os...
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Oct 24, 2021
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arm - How to run a C program with no OS on the Raspberry Pi?
I'd like to experiment using the Raspberry Pi for some different low level embedded applications. The only problem is ... (USB, Ethernet, etc.) See Question&Answers more detail:os...
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Oct 24, 2021
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arm - what is the current execution mode/exception level, etc?
I am new to ARMv8 architecture. I have following basic questions on my mind: How do I know what is the ... /IRQ/FIQ exception handler. TIA. See Question&Answers more detail:os...
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Oct 24, 2021
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arm - What is the difference between ELF files and bin files?
The final images produced by compliers contain both bin file and extended loader format ELf file ,what is the ... the utility of ELF file. See Question&Answers more detail:os...
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Oct 17, 2021
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arm - What is PDE cache?
I have the following specifications of an ARM based SoC: L1 Data cache = 32 KB, 64 B/line, 2-WAY, LRU L2 ... entries as part of a table walk. See Question&Answers more detail:os...
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Oct 17, 2021
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arm - Cross compilation: GCC ignores --sysroot
I'm trying to cross compile programs (currently avconv from libav) for a Nokia N9 phone using arm-linux-gnueabi- ... errors. What's the problem? See Question&Answers more detail:os...
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Oct 17, 2021
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arm - How to implement system call in ARM64?
I am working with arm64 assembly coding and I want to implement system calls using svc instruction . I can ... Also explain the implementation . See Question&Answers more detail:os...
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Oct 17, 2021
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arm - What is the difference between =label (equals sign) and [label] (brackets) in ARMv6 assembly?
I'm following along with the Baking Pi course from Cambridge University, in which a simple operating system is built in ... ldr r0,[ptr,#4] */ See Question&Answers more detail:os...
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Oct 17, 2021
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arm - GNU Linker Map File Giving Unexpected Load Addresses
I'm working on an embedded program where I have a custom linker script. The program works, but I have ... Location Counter of GNU Linker Scripts See Question&Answers more detail:os...
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Oct 17, 2021
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arm - Windows Phone 7 and native C++/CLI
Microsoft recently released tools and documentation for its new Phone 7 platform, which to the dismay of those ... templates and smart pointers. See Question&Answers more detail:os...
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Oct 17, 2021
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arm - How to run a single line of assembly, then see [R1] and condition flags
I'm trying to teach myself assembly. I've got years and year of experience with C, Java and Python- but I ... lines of code to start learning? See Question&Answers more detail:os...
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Oct 17, 2021
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arm - TrustZone monitor mode and IFAR, IFSR, DFAR, DFSR
The ARM TrustZone monitor mode can trap aborts in monitor mode. The monitor mode always executes in the secure ... are banked CP15 registers. See Question&Answers more detail:os...
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Oct 17, 2021
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arm - How is load->store reordering possible with in-order commit?
ARM allows the reordering loads with subsequent stores, so that the following pseudocode: // CPU 0 | // CPU ... in modern weakly ordered CPUs. See Question&Answers more detail:os...
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Oct 17, 2021
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arm - What is the difference between FIQ and IRQ interrupt system?
I want to know the difference between FIQ and IRQ interrupt system in any microprocessor, e.g: ARM926EJ. See Question&Answers more detail:os...
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Oct 17, 2021
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