• Is ARMv7-M3 thumb instructions compatible to ARMv7-A thumb?

    Kaiyuan
    Kaiyuan

    Hello guys,

    I am trying to verify some features of ARMv7-M3 in a software simulator platform for ARM. But this simulator only support ARMv7-A ISA.

    Is ARMv7-M3 instructions compatible to ARMv7-A, especially thumb instructions?

    Thank you very much.

    • Answered
    • over 3 years ago
    • Processors
    • Cortex-M / M-Profile forum
  • I am currently an eighth grader but I have a deep interest in ARM processors, since I'm a neophyte but I have great interest could u tell me what makes ARM processors so significant? Why? Thank you :)

    Hagin
    Hagin

    would u mind telling me please I'm really interested in this kind of stuffs.

    • over 5 years ago
    • Processors
    • Cortex-A / A-Profile forum
  • updating CPSR in USER UNPRIVILEGED mode

    anoop
    anoop

    as we know supervisor mode is priviliged and user is not. at reset time in debugging mode, i read the cpsr it is 0x1d3 means in supervisor mode, so i can change CPSR so i changed it to 0x1d0 which is user mode, since user mode is unpriviliged so i must…

    • Answered
    • over 5 years ago
    • Processors
    • Cortex-A / A-Profile forum
  • system requirements

    SGR
    SGR

    what are the minimum hardware requirements to setup wifi on arm-7 processors.

    • over 5 years ago
    • Processors
    • Cortex-M / M-Profile forum
  • Return address from FIQ_Handler. Do we come back to the next instruction?

    Harshdeep
    Harshdeep

    Is it

    MOVS pc, r14

    or

    SUBS pc, r14, #4

    This is written in the ARMDEN0013D. but in the table it says next instruction whereas the SUBS pc, r14, #4 means the instruction which was interrupted.

    • Answered
    • over 5 years ago
    • Processors
    • Cortex-M / M-Profile forum