tree 8edd319248d5af1846e528cc6c98f0342a00cdf3
parent fc7a5038a6b70a3e474e58a5ed9845e4f5eed6dd
author Peter Maydell <peter.maydell@linaro.org> 1627658196 +0100
committer Peter Maydell <peter.maydell@linaro.org> 1629884930 +0100

target/arm: Implement M-profile trapping on division by zero

Unlike A-profile, for M-profile the UDIV and SDIV insns can be
configured to raise an exception on division by zero, using the CCR
DIV_0_TRP bit.

Implement support for setting this bit by making the helper functions
raise the appropriate exception.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210730151636.17254-3-peter.maydell@linaro.org