[Qemu-discuss] Details about TranslationBlock

[田泽轶]

I've been reading qemu's source code.

but I'm not clear about these Member variables of struct TranslatonBlock in $(qemu)/exec-all.h:

+++uint16_t tb_next_offset[2]; /* offset of original jump target */

+++#ifdef USE_DIRECT_JUMP

+++uint16_t tb_jmp_offset[4]; /* offset of jump instruction */

+++#else

+++uintptr_t tb_next[2]; /* address of jump generated code */

+++#endif

and I was confused about the real meaning of "taken" and "not taken".

Could there anyone show the details?

Best Regards.

Stany.