Question about x86 delegate calling convention

[Walter Bright]

Lionello Lunesu wrote:
> "Walter Bright" <newshound at digitalmars.com> wrote in message 
> news:e82j04$28fs$1 at digitaldaemon.com...
>> It's just an artifact of the register allocator. The context pointer is 
>> passed in EAX.
> 
> While on the subject, why can't a function pointer be (implicitly) converted 
> to a delegate pointer? The context can just be ignored int that case so 
> it'll probably be slightly less performant, but it's handy: a library could 
> use delegates for all callbacks, without forcing the users to use either 
> classes or nested functions. They can still use globals if they'd want.

Some functions pass parameters in EAX (!)