Re: [Qemu-devel] [RISU RFC PATCH v1 5/7] risugen: allow all byte-aligned instructions

[Richard Henderson <richard.henderson@linaro.org>]

On 6/19/19 7:04 AM, Jan Bobek wrote:
> Accept all instructions whose bit length is divisible by 8. Note that
> the maximum instruction length (as specified in the config file) is 32
> bits, hence this change permits instructions which are 8 bits or 24
> bits long (16-bit instructions have already been considered valid).
> 
> Note that while valid x86 instructions may be up to 15 bytes long, the
> length constraint described above only applies to the main opcode
> field, which is usually only 1 or 2 bytes long. Therefore, the primary
> purpose of this change is to allow 1-byte x86 opcodes.
> 
> Signed-off-by: Jan Bobek <jan.bobek@gmail.com>
> ---
>  risugen | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~