Re: problem with 64-bit arch

[Jean-Marc Saffroy <jean-marc dot saffroy at joguin dot com>]

Doug Evans wrote:
> We were just discussing instruction word bitsizes of 64, and it's not 
> clear what to do.
> I don't mind going down the path of having 64 bit instructions expressed 
> as a single 64 bit integer (*1), but can you confirm your architecture 
> has 64-bit instructions?  From the given sample, it seems like it has 32 
> bit instructions and 64-bit words (like sparc64).

You guessed right: my target arch has 32 bit instructions (which I 
expressed with base-insn-bitsize == 32), and uses 64-bit words for data 
and addresses (expressed with word-bitsize == 64).

> Clearly the missing type in the cast is a bug.  That should be easy to 
> fix.  As for the use of long to record a 64-bit value, that should also 
> be (relatively) easy to fix.
> I'll dig deeper tonight.

Good to hear, thanks!

I found the cast could be fixed by changing the "(dfm 'DI..." line in 
mode.scm, but have no idea about the possible side effects, and didn't 
find a cure for the use of long anyway.


Cheers,
JM