Re: [Qemu-devel] [PATCH v2 15/68] target/arm: Convert BX, BXJ, BLX (register)

[Peter Maydell]

On Mon, 19 Aug 2019 at 22:38, Richard Henderson
<address@hidden> wrote:
>
> Signed-off-by: Richard Henderson <address@hidden>
> ---
>  target/arm/translate.c | 78 ++++++++++++++++++++----------------------
>  target/arm/a32.decode  |  7 ++++
>  target/arm/t32.decode  |  2 ++
>  3 files changed, 47 insertions(+), 40 deletions(-)

> @@ -195,8 +196,14 @@ CRC32CW          .... 0001 0100 .... .... 0010 0100 .... 
>      @rndm
>
>  %sysm            8:1 16:4
>
> +@rm              ---- .... .... .... .... .... .... rm:4      &r
> +
>  MRS_bank         ---- 0001 0 r:1 00 .... rd:4 001. 0000 0000  &mrs_bank %sysm
>  MSR_bank         ---- 0001 0 r:1 10 .... 1111 001. 0000 rn:4  &msr_bank %sysm
>
>  MRS_reg          ---- 0001 0 r:1 00 1111   rd:4 0000 0000 0000  &mrs_reg
>  MSR_reg          ---- 0001 0 r:1 10 mask:4 1111 0000 0000 rn:4  &msr_reg
> +
> +BX               .... 0001 0010 1111 1111 1111 0001 ....      @rm
> +BXJ              .... 0001 0010 1111 1111 1111 0010 ....      @rm
> +BLX_r            .... 0001 0010 1111 1111 1111 0011 ....      @rm

Why do the decode patterns for these use '....' in the cond field
rather than '----' like the other patterns ?

Otherwise
Reviewed-by: Peter Maydell <address@hidden>

thanks
-- PMM