Arm Architecture Reference Manual for A-profile architecture (emphasis added): FPHP, bits [27:24] 0b0011 As for 0b0010, and adds support for hal ...
Arm Architecture Reference Manual for A-profile architecture (emphasis added): FPHP, bits [27:24] 0b0011 As for 0b0010, and adds support for hal ...
I am using ARMSIM to test out my Arm Assembly code. I see R8 being updated for no reason. This doesn't happen when I use the regular ADD instruction ...
I have this simple C code: compiled as: and executed as: prints: Why yyy is not printed? By reducing the issue I've found that: for s ...
I build as little OS for a CortexM4 CPU which is able to receive compiled binaries over UART and schedule them dynamically. I want to use that feature ...
On ARM after writing instructions to memory a memory barrier is needed before executing the instructions. Specifically clean the data cache, invalidat ...
I am doing a ARM+RTOS project, and I want to download the binary to target board with JLink JTAG. But every time 'loadbin a.bin 0x40000000' will repor ...
What is the difference between MOV and CPY instruction in ARM ISA? I cannot seem to find valid difference. ...
Considering a 32-bit system (such as an ARM RISC MCU), how can one ensure that 16-bit variables are written/ read in an atomic way? Based on this doc, ...
i have a programm in armv6 assembly which calculates the result of (x +y)^2 this code doesn't work, and returns: "Unsupported ARM syscall: 0xffffffdf ...
I am working on an ARMv7 (Cortex-A7) system, and I want to read CPSR from C file in either ARM mode or THUMB mode. Firstly, I used the embedded ASSEM ...
I would like to modify and complete an example found in my textbook (Harris-Harris). How can I make a program that declares an array of 5 elements for ...
I'm trying to emulate a processor which consists processor cores with different max frequencies per core, like ARM processors or newer Intel processor ...
I am trying to emit a global SYMBOL based on a #define VALUE. My attempt is as follows: What is emitted by gcc to the assembler is the following: ...
I'm using a Raspberry Pi Pico, which has two cores, both with a 4KB stack, with core0's on top of core1's so that core0 gets to have 8KB of stack in s ...
I'm trying to emulate an Arm cortex M33 using QEMU, using the an505 model. I've used this git repo as a starting point. I've successfully built the p ...
I am working on an ARM CORTEX microcontroller and have written a function 'x' for context switching of a thread. This function included all __asm() c ...
How do you enable the Arm Pointer Authentication Code (PAC) on macOS? I have a MacBook Air with an Apple M1 chip. The CPU implements the Arm architec ...
I am building and running an application with arm-linux-gnueabi-gcc, and I am testing a stack backtrace function in Linux. Then I found if the applica ...
I have a following problem: I have a low-latency application running on core 0, and a regular application running on core 1. I want to make sure that ...
The gpio remapping of many chips in stm32 has no rules. I want to find rules at armv7 or Arm Cortex-M4 to adapt the gpio remapping of different chips ...