You can translate the resulting mask back into a single index by counting the leading zeroes, and then subtracting that from 31. A possible assembly language instruction sequence to do this would be

计算前导零，然后从 31 中减去前导零数量，就可以将产生的掩码转换为索引。

youdao

Well, the Western Mail has certainly put the cat among the pigeons (or 'rhoi'r gath ymysg y colomenod' as Google might translate it) this morning with its editorial which calls a proposal to have a full bilingual record of all Assembly proceedings - including committee hearings - "astounding".

BBC: Mugshots and making headlines