e13886e3a7
M profile doesn't implement ARM, and the architecturally required behaviour for attempts to execute with the Thumb bit clear is to generate a UsageFault with the CFSR INVSTATE bit set. We were incorrectly implementing this as generating an UNDEFINSTR UsageFault; fix this. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>