tree 3314c60de44742421a68119e0328ac2e4b1cafef
parent b623d803dda805f07aadcbf098961fde27315c19
author Peter Maydell <peter.maydell@linaro.org> 1560267591 +0100
committer Peter Maydell <peter.maydell@linaro.org> 1560435246 +0100

target/arm: Convert the VCVT-to-f16 insns to decodetree

Convert the VCVTT and VCVTB instructions which convert from
f32 and f64 to f16 to decodetree.

Since we're no longer constrained to the old decoder's style
using cpu_F0s and cpu_F0d we can perform a direct 16 bit
store of the right half of the input single-precision register
rather than doing a load/modify/store sequence on the full
32 bits.

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