[Bug 1849879] [NEW] qemu-arm should accept vmrs apsr_nzcv, fpscr on M-profile

[Christophe Lyon]

Public bug reported:

I've noticed that qemu-arm for cortex-M considers
vmrs apsr_nzcv, fpscr
as an illegal instruction.

In this case, rt==15 means APSR, and the instruction should be accepted
and executed like for A-profile.

I posted a small patch:
https://lists.gnu.org/archive/html/qemu-devel/2019-10/msg06978.html

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1849879

Title:
  qemu-arm should accept vmrs apsr_nzcv, fpscr on M-profile

Status in QEMU:
  New

Bug description:
  I've noticed that qemu-arm for cortex-M considers
  vmrs apsr_nzcv, fpscr
  as an illegal instruction.

  In this case, rt==15 means APSR, and the instruction should be
  accepted and executed like for A-profile.

  I posted a small patch:
  https://lists.gnu.org/archive/html/qemu-devel/2019-10/msg06978.html

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