Re: [Qemu-devel] [PATCH 3/3] target-arm: Fix IL bit reported for Thumb VFP and Neon traps

[Sergey Fedorov]

On 05.02.2016 17:37, Peter Maydell wrote:
> All Thumb Neon and VFP instructions are 32 bits, so the IL
> bit in the syndrome register should be set. Pass false to the
> syn_* function's is_16bit argument rather than s->thumb
> so we report the correct IL bit.
>
> Signed-off-by: Peter Maydell <address@hidden>

Reviewed-by: Sergey Fedorov <address@hidden>

> ---
>  target-arm/translate.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/target-arm/translate.c b/target-arm/translate.c
> index 10792e8..fa8e22c 100644
> --- a/target-arm/translate.c
> +++ b/target-arm/translate.c
> @@ -3077,7 +3077,7 @@ static int disas_vfp_insn(DisasContext *s, uint32_t 
> insn)
>       */
>      if (s->fp_excp_el) {
>          gen_exception_insn(s, 4, EXCP_UDEF,
> -                           syn_fp_access_trap(1, 0xe, s->thumb), 
> s->fp_excp_el);
> +                           syn_fp_access_trap(1, 0xe, false), s->fp_excp_el);
>          return 0;
>      }
>  
> @@ -4399,7 +4399,7 @@ static int disas_neon_ls_insn(DisasContext *s, uint32_t 
> insn)
>       */
>      if (s->fp_excp_el) {
>          gen_exception_insn(s, 4, EXCP_UDEF,
> -                           syn_fp_access_trap(1, 0xe, s->thumb), 
> s->fp_excp_el);
> +                           syn_fp_access_trap(1, 0xe, false), s->fp_excp_el);
>          return 0;
>      }
>  
> @@ -5137,7 +5137,7 @@ static int disas_neon_data_insn(DisasContext *s, 
> uint32_t insn)
>       */
>      if (s->fp_excp_el) {
>          gen_exception_insn(s, 4, EXCP_UDEF,
> -                           syn_fp_access_trap(1, 0xe, s->thumb), 
> s->fp_excp_el);
> +                           syn_fp_access_trap(1, 0xe, false), s->fp_excp_el);
>          return 0;
>      }
>