• range of BL instruction in arm state
    range of BL instruction in arm state is + or - 32MB as per instruction set.how...........?
  • UPREDICTABLE instructions
    Any idea about instructions marked as UNPREDICTABLE: can it then be UNDEFINED? In other words: UNDEFINED REQUIRES the instruction to cause UND-exception, but MAY UNPREDICTABLE do that, or does it...
  • What does this instruction do?
    In the ARMv7-A/R ARM Issue C I found two instructions with odd encoding: PUSH and POP, encoding A2. What's the Rt's role? I guess Rt and 'registers'-bitlist needs to match? Encoding A2 ARMv4*, ARMv5T...
  • Address Space Identifier - ASID
    For ARMv7 -A/R systems, the MMU uses an ASID to distinguish between memory pages which have the same virtual address, but which are used by an individual task ( I.e. A task which uses non-Global memory...
  • What are hints?
    What does it mean that an instruction is a hint instruction, like NOP, YIELD and WFE? I haven't found any explanations in ARM Architecture Reference Manual, ARMv7-A and ARMv7-R edition, Issue C. ...