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target/arm: Implement MVE VQDMLSDH and VQRDMLSDH

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Implement the MVE VQDMLSDH and VQRDMLSDH insns, which are
like VQDMLADH and VQRDMLADH except that products are subtracted
rather than added.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-38-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2021-06-17 13:16:21 +01:00
parent fd677f8055
commit 92f117326a
4 changed files with 69 additions and 0 deletions
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target/arm/mve.decode
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@ -147,6 +147,11 @@ VQDMLADHX 1110 1110 0 . .. ... 0 ... 1 1110 . 0 . 0 ... 0 @2op
VQRDMLADH 1110 1110 0 . .. ... 0 ... 0 1110 . 0 . 0 ... 1 @2op
VQRDMLADHX 1110 1110 0 . .. ... 0 ... 1 1110 . 0 . 0 ... 1 @2op
VQDMLSDH 1111 1110 0 . .. ... 0 ... 0 1110 . 0 . 0 ... 0 @2op
VQDMLSDHX 1111 1110 0 . .. ... 0 ... 1 1110 . 0 . 0 ... 0 @2op
VQRDMLSDH 1111 1110 0 . .. ... 0 ... 0 1110 . 0 . 0 ... 1 @2op
VQRDMLSDHX 1111 1110 0 . .. ... 0 ... 1 1110 . 0 . 0 ... 1 @2op
# Vector miscellaneous
VCLS 1111 1111 1 . 11 .. 00 ... 0 0100 01 . 0 ... 0 @1op