BASICTrans_Error.

[Ralph Corderoy]

Hi,

> I might be way off here, as I've currently no documentation to work
> from, just experimentation, but it seems that OSLib's definition of
> BASICTrans_Error thinks R1 is a reference to an OS_Error.
> 
>     SWI BASICTrans_Error = (NUMBER 0x42C81 "Copy translated error string to
>           buffer",
>           ENTRY (R0 = .Int: error_no,
>           R1 = .Ref OS_Error: error_buffer),
>           EXIT (R0?, R1?, R2?, R3?));
> 
> BASICTrans seems to actually place a \0-terminated string at R1.  Can
> someone confirm OSLib's definition seems wrong?

I've now read page 4-339 and it says the SWI puts a \0-terminated string
at R1 so OSLib's definition is wrong.  My defmod's poor.  Is this the
right definition?

    SWI BASICTrans_Error = (NUMBER 0x42C81 "Copy translated error string to
          buffer",
          ENTRY (R0 = .Int: error_no,
          R1 = .Ref .String: error_buffer),
          EXIT (R0?, R1?, R2?, R3?));

> As an aside, is it documented what BASICTrans does if R0 < 0 or R0 >
> largest valid error number (112 for RO 3.11)?

It doesn't seem to be, and trying it doesn't result in the V-flag being
set, just junk at R1?

Cheers,


Ralph.