Hi there!

1. Isn't FPC able of the standard pascal calling convention (pushing parameters left-to-right, function removes parameters)?

2. When will parameter passing in registers be available?

3. Do I need to tell FPC which registers will be modified by an assembler function in an external object file? How do I tell it FPC (the doc only covers this for internal asm functions)?

1. Isn't FPC able of the standard pascal calling convention (pushing parameters left-to-right, function removes parameters)?

Use the "stdcall" modifier.

2. When will parameter passing in registers be available?

Don't know yet.

3. Do I need to tell FPC which registers will be modified by an assembler function in an external object file? How do I tell it FPC (the doc only covers this for internal asm functions)?

I don't think you can tell FPC that. It will simply assume all registers are modified by such a function.

Jonas

At 15:07 23/11/00 , vous avez écrit:

>1. Isn't FPC able of the standard pascal calling convention (pushing >parameters left-to-right, function removes parameters)? Use the "stdcall" modifier.

No, this doesn't change the order of pushing parameters, it only changes the way the parameters are removed from stack (by ret $NN in the procedure/function)
as opposed to the cdecl modifier where the args are removed from stack after the return by the code that called the function.

The is a "pascal;" modifier, but it is allmost completely untested. Check if it works.

you wrote

2. When will parameter passing in registers be available?

At least never for 1.0.x. Maybe for 1.1/1.2. But the point is that register parameters has no advantage
in real world programs because of the lack of registers on the i386.

Hi,

The function typinfo.GetPropList is incompatible to the Delphi function. To get the number of results, you can't ask the function itself, because it writes to list in any case. Even if there is no list. Delphis function tests, if the list exists.
Is this a bug or a feature?

Mattias

Hi again,

1.
I want access to set elements via the RTTI.
Delphis sysutils.pas defines for a set with the size of an integer:

  TIntegerSet = set of 0..SizeOf(Integer) * 8 - 1;

Then you can write:

  S:TIntegerSet;
  [...]
  Integer(S) := GetOrdProp(Instance, PropInfo);
  V := FElement in S;

How can I achieve this under FPC?
Can I simply take the TIntegerSet?

2.
How much digits the following floats have?
ftSingle,ftDouble,ftExtended,ftComp,ftCurr,ftFixed16,ftFixed32

Mattias