tree 22acc3cff3b93d0d0319f3a42d64b19411d50199
parent cd27e475588c6af9fa483a245203e938e6b004c6
author Gabe Black <gabe.black@gmail.com> 1630193159 -0700
committer Gabe Black <gabe.black@gmail.com> 1630453500 +0000

arch-arm: For semihosting, mask reg value and not index.

In ArmSemihosting::call64, the *index* of X0 was masked to be 32 bits (a
noop), and then read using the TC, where I'm pretty sure what was
intended was to read the value and then mask what was returned.

Change-Id: I66cb845d4e97b1895072bd98de709256625c8e3f
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/49762
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>