On 03/06/16 16:45, Jakub Horak wrote:
(Added David as PPC maintainer and qemu-ppc mailing list)
> Hello,
> I think there's a bug in "wait" instruction code generator for PowerPC
> architecture. It doesn't make sense to store a non-initialized register.
>
> Best regards,
> Jakub Horak
>
>
> diff --git a/target-ppc/translate.c b/target-ppc/translate.c
> index f5ceae5..6af567b 100644
> --- a/target-ppc/translate.c
> +++ b/target-ppc/translate.c
> @@ -3439,7 +3439,7 @@ static void gen_sync(DisasContext *ctx)
> /* wait */
> static void gen_wait(DisasContext *ctx)
> {
> - TCGv_i32 t0 = tcg_temp_new_i32();
> + TCGv_i32 t0 = tcg_const_i32(1);
> tcg_gen_st_i32(t0, cpu_env,
> -offsetof(PowerPCCPU, env) + offsetof(CPUState, halted));
> tcg_temp_free_i32(t0);
>
ATB,
Mark.
