Re: [Qemu-devel] TB chaining

[陳韋任]

>      /* list of TBs jumping to this one. This is a circular list using
>         the two least significant bits of the pointers to tell what is
>         the next pointer: 0 = jmp_next[0], 1 = jmp_next[1], 2 =
>         jmp_first */
>      struct TranslationBlock *jmp_next[2];
>      struct TranslationBlock *jmp_first;

  After tracing the code, I found the comment might be wrong.
For example, if we link tb1 to tb2, i.e., tb1 -> tb2. Then
"tb1->jmp_next[n] = tb2" and "tb2->jmp_first = tb1" (roughly
speaking). I'm not sure if I misunderstand the comment "list
of TBs jumping to this one", or it is just wrong. 

Regards,
chenwj

-- 
Wei-Ren Chen (陳韋任)
Computer Systems Lab, Institute of Information Science,
Academia Sinica, Taiwan (R.O.C.)
Tel:886-2-2788-3799 #1667