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target/arm: Implement MVE VMLSLDAV

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Implement the MVE insn VMLSLDAV, which multiplies source elements,
alternately adding and subtracting them, and accumulates into a
64-bit result in a pair of general purpose registers.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-21-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2021-06-17 13:16:04 +01:00
parent 1d2386f70a
commit 181cd97143
4 changed files with 23 additions and 0 deletions
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11
target/arm/translate-mve.c
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@ -461,3 +461,14 @@ static bool trans_VMLALDAV_U(DisasContext *s, arg_vmlaldav *a)
};
return do_long_dual_acc(s, a, fns[a->size][a->x]);
}
static bool trans_VMLSLDAV(DisasContext *s, arg_vmlaldav *a)
{
static MVEGenDualAccOpFn * const fns[4][2] = {
{ NULL, NULL },
{ gen_helper_mve_vmlsldavsh, gen_helper_mve_vmlsldavxsh },
{ gen_helper_mve_vmlsldavsw, gen_helper_mve_vmlsldavxsw },
{ NULL, NULL },
};
return do_long_dual_acc(s, a, fns[a->size][a->x]);
}