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[Bug 1849879] [NEW] qemu-arm should accept vmrs apsr_nzcv, fpscr on M-pr
From: |
Christophe Lyon |
Subject: |
[Bug 1849879] [NEW] qemu-arm should accept vmrs apsr_nzcv, fpscr on M-profile |
Date: |
Fri, 25 Oct 2019 17:44:50 -0000 |
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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