tree 44174a08d62f7f258c766b03ee9f28c6ac2e9ac1
parent 934814f1984346af3e95306648cf20195269b098
author Peter Maydell <peter.maydell@linaro.org> 1311295880 +0000
committer Peter Maydell <peter.maydell@linaro.org> 1311690654 +0000

target-arm: UNDEF on a VCVTT/VCVTB UNPREDICTABLE to avoid TCG assert

VCVTT/VCVTB with bit 8 set is UNPREDICTABLE; we choose to UNDEF.
This avoids a TCG assert later when the VCVTT/VCVTB code tries to
use a source register that wasn't ever set up.

We pull the check for the presence of the half-precision extension
up in to this common code as well.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>