Re: ISA checks for factories

[Phil Muldoon <pmuldoon at redhat dot com>]

Andrew Cagney wrote:
> Phil,
>
> There is now also:
>    ISA isa = task.getISA()
> which returns a frysk.isa.ISA, which looks smells and behaves like an 
> ENUM.  This new ISA just the following attributes:
>   - family (i386, x8664, PPC)
>   - word size (4, 8)
>   - byte order (little, big)
> leading to the combinations: IA32, X8664, PPC32LE, PPC32BE, PPC64LE, 
> PPC64BE.

Ok that makes sense, I got that from the original email, but ...


> or better?:
>
>   ISAMap map = new ISAMap("why am I here")
>       .put(ISA.IA32, new My(IA32))
>       .put(ISA.X8664, new My(X8664))
>       ;
>   ...
>       // Throws a RuntimeException if ISA missing
>       My o = (My) map.get(task.getISA);
I'm still a little fuzzy on how it can be used to detected IA 32 on 64, 
or PPC32 On 64?

Regards

Phil