Subj : Re: Power C/asm: returning a value from asse
To   : K-Guide
From : Harry Potter
Date : Sat Dec 14 2019 17:03:23

On Saturday, December 14, 2019 at 7:17:21 PM UTC-5, K-Guide wrote:
> Using the stack makes alot of since for the return value of the assembler
> function.  In the case of no parameter, I suspect you can just call the 
routine
> via a function pointer in C. Set that to the address of your assembler 
routine
> and call the function.  Please bear in mind I am not a Power C programmer, 
but
> am just guessing based on other platforms I program on.  If you have 
parameters
> there could be some documemtation on how to pass them via registers in the
> compiler docs.  Compilers seem to have their own style for stuff like that.  
It
> also could be that you just need to drop the values into a certain memory
> location as the assember routine expects it there.
>
> Not sure I follow you about the too few parameters.
>
The docs. I have reveal that the return value seems to overwrite the last 
parameter passed to the function.  That's why I am worried about the too few 
parameters.

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