• What is the behavior for a "BKPT" instruction in a HardFault handler
    For a Cortex-M7 processor, what is the behavior of the processor if there is no debugger attached and the HardFault handler looks like: void HardFault_Handler(void) { __asm("BKPT #0"); } and a...
  • ARMv8-A Instruction for Getting CPU Number
    Hi, I'm using a Juno r1 board and I'm trying to get processor's related CPU ID without using any header file like function sched_getcpu from sched.h . The reason is I want to get the CPU number for TrustZone...
  • Getting ERROR "unknown mnemonics for UQSUB8 instruction"
    Hi community, I have tried to compile the source code for openVG I have given proper cross compiler which is required by the platform still I am getting the error of unknown mnemonics for the instruction...
  • behavior of executing instructions on the out-of-order pipeline of Cortex-A15
    Hi, I have one question regarding the interrupt of A15 core. Please see the below picture. I would like to know which area existing instructions are discarded when the interrupt happens. When an interrupt...
  • [Cortex-A53] STP instruction stores out of the specified memory
    Hi Experts, I have a question about "STP" instruction in Cortex-A53. STP W6, W6, [SP, #20] --> after it executes, the memory of [sp, #16] and [sp, #28] are corrupted. I don't know why cause it....