Re: Variable registers

Leopold Toetsch wrote:

>
> On Oct 1, 2005, at 8:46, <vanderlay@home.nl> wrote:
>
>>
>> hi,
>>
>> I read that with the new calling conventions, there are a variable 
>> number of registers. So, if I understand correctly, if a function 
>> call takes 2 parameters, then there are only 2, and if there are 30 
>> parameters, there will be a frame holding 30 registers. Is this about 
>> right?
>
>
> Yes. The argument passing opcodes take a variable amount of registers
>
>> How does this stand WRT the 32 registers in Parrot. Is this still the 
>> case, or will this change as well?
>
>
> This will change. Register frame size and thus the amount of registers 
> will be adapted to the actual usage of a subroutine.

ah I thought so. just making sure. Then another question WRT this; will 
there be a register allocator? In other words, an attempt to minimize 
the number of needed registers? (in my simple code generator 
implementations, any time I need a new register, I just increment a 
counter, and use that, so in that case there is  No register allocation 
scheme)

regards,
klaas-jan

• Variable registers by vanderlay
• Re: Variable registers by Leopold Toetsch
• Re: Variable registers by Klaas-Jan Stol
• Re: Variable registers by Leopold Toetsch
• Re: Variable registers by Klaas-Jan Stol
• Lexicals (was: Variable registers) by Leopold Toetsch