On Aug 10, 2011, at 12:25 PM, David Laight wrote:
>
>> I have some and use them in some code, they represent ISA
>> 2.06 MAVN=1 (version 2)
>> Can I keep them?
>> if so, should I put them somewhere useful to others?
>>
>> Examples:
>> union mas1 {
>> u32 _val;
>> struct {
>> u32 v:1;
>> u32 iprot:1;
>> u32 tid:14;
>> u32 _reserved_1:2;
>> u32 ind:1;
>> u32 ts:1;
>> u32 tsize:4;
>> u32 _reserved_2:8;
>> };
>> };
>
> Bitfields are rather non-portable, the compiler has a lot of choice
> about how to align the bits in memory.
I'm ok with the masking stuff.
However, I'm actually surprised this is true given the maturity of our ABIs.
-JX
> Their use to map anything physical is doomed to portabilily issues.
>
> David
>
>
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