Search results
Results From The WOW.Com Content Network
The stdcall [5] calling convention is a variation on the Pascal calling convention in which the callee is responsible for cleaning up the stack, but the parameters are pushed onto the stack in right-to-left order, as in the _cdecl calling convention. Registers EAX, ECX, and EDX are designated for use within the function.
The calling convention of a given program's language may differ from the calling convention of the underlying platform, OS, or of some library being linked to. For example, on 32-bit Windows, operating system calls have the stdcall calling convention, whereas many C programs that run there use the cdecl calling convention. To accommodate these ...
In the stdcall and fastcall mangling schemes, the function is encoded as _name@X and @name@X respectively, where X is the number of bytes, in decimal, of the argument(s) in the parameter list (including those passed in registers, for fastcall). In the case of cdecl, the function name is merely prefixed by an underscore.
cdecl and stdcall names are case-senstive. pascal names are not. While technically not part of the calling convention, there is the greater good to consider. If case-sensitivity is included, it would help those reading this article who are trying to resolve calling convention related problems.
The advantage of PASCAL call over STDCALL is that the code is slightly smaller, though the size impact is only visible in large programs, and that recursion works faster. Variadic functions are almost impossible to get right with PASCAL and STDCALL methods, because only the caller really knows how many arguments were passed in order to clean ...
In assembly language programming, the function prologue is a few lines of code at the beginning of a function, which prepare the stack and registers for use within the function.
Pages for logged out editors learn more. Contributions; Talk; Cdecl
Pages for logged out editors learn more. Contributions; Talk; Stdcall