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In the Neon instructions, some instruction formats have a 2-bit size field which corresponds exactly to QEMU's MO_8/16/32/64. However the floating-point insns in the 3-same group have a 1-bit size field which is "0 for 32-bit float and 1 for 16-bit float". Currently we pass these values directly through to trans_ functions, which means that when reading a particular trans_ function you need to know if that insn uses a 2-bit size or a 1-bit size. Move the handling of the 1-bit size to the decodetree file, so that all these insns consistently pass a size to the trans_ function which is an MO_8/16/32/64 value. In this commit we switch over the insns using the 3same_fp and 3same_fp_q0 formats. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200903133209.5141-2-peter.maydell@linaro.org |
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