In Asm-Prozedur eine Exception auslösen

[Amateurprofi]

Hier, in #24 sind die Prozeduren für die ich das haben wollte.
Noch einmal vielen Dank für die Hilfestellungen.

https://www.delphipraxis.net/119187-...ml#post1529146

[paule32.jk]

@Kas Obi:

I think, the stack is need under modern Microsoft Windows.
Because the first two 8 Bit = 16 Bit = 10h is for 64-Bit self-references the Functions, and Procedures.
So the first Argument/Parameter for the Function's/Procedure's begin at Bit 16.
I say to me:

Code:

first  := 0 <-- self
second := 1 <-- first Parameter
...

[Kas Ob.]

Zitat von paule32.jk:

@Kas Obi:

I think, the stack is need under modern Microsoft Windows.
Because the first two 8 Bit = 16 Bit = 10h is for 64-Bit self-references the Functions, and Procedures.
So the first Argument/Parameter for the Function's/Procedure's begin at Bit 16.
I say to me:

Code:

first  := 0 <-- self
second := 1 <-- first Parameter
...

I am not sure i do understand that %100, but Self will be used and added ONLY in Objects and Classes when the code is used in OOP style, not in orphan procedures/functions like all the mentioned p/f in this thread.

Example

Code:

function MyFunc(A: Integer; B: string): Integer;
begin

end;
 // Internally the compiler will make generate the code exactly as the following

procedure MyFuncAsProc(A: Integer; B: string; out Result: Integer);
begin

end;

------------------------

function MyClass.MyFunc(A: Integer; B: string): Integer;
begin

end;
 // Internally the compiler will make generate the code exactly as the following

procedure MyClass.MyFuncAsProc(const Self: TMyClass; A: Integer; B: string; out Result: Integer);
begin

end;

So using the satck is not for only referencing Self, in fact Self will always be in a register.( in edx on x86/x32, and in rcx on x64)

and that if i understand your comment right and we are talking about Self like This in other languages.

[himitsu]

no, with is only for results greater a Register aka SizeOf(Pointer)
or for Results with managed types, such as string and interface.

[paule32.jk]

@kas ob:

ehmm... with self, I mean not the Delphi keyword in Context of Classes/Records.
with self, I mean the internal working Design of Microsoft Windows.
Like himitsu said - it could be for "self" managed Code (COM+).

And I can bet, that Microsoft have a secret Layer'ed File with Numbers (I pointed: 2 ^64 = 18 Trillion GiBytes dataflow. So, each managed Type becomes a (GUID) Number, and as such, all the Component(s) are different and can directly accessed. Instead to use String like in Delphi, and C++ Builder Debug Symbols.
In older Window's, the DLL Functions could be called by Value, and Name.

[jaenicke]

I don't understand what you mean, but the stack layout is documented here:
https://learn.microsoft.com/en-us/cpp/build/stack-usage

[paule32.jk]

hello @jaenicke:

I point to: PROLOG and EPILOG

You can not simply call Exception Functions or any Functions of any Classes without .Create a Instance.
This give MAVs.