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Pointers are returned in EAX on 32-bit systems and in AX in 16-bit systems. Strings are returned in a temporary location pointed by the @Result symbol. This calling convention was common in the following 16-bit APIs: OS/2 1.x, Microsoft Windows 3.x, and Borland Delphi version 1.x.
In the thiscall section, you stated "Windows API functions don't have a this pointer!", well, the section was already talking about *C++ member functions*, and non-static was obviously implicit but should be noted. I have reverted to Letdorf's version, though I agree that Windows functions can be misleading.
C++ enforces stricter typing rules (no implicit violations of the static type system [1]), and initialization requirements (compile-time enforcement that in-scope variables do not have initialization subverted) [7] than C, and so some valid C code is invalid in C++. A rationale for these is provided in Annex C.1 of the ISO C++ standard.
The Microsoft Windows operating system and Microsoft Windows SDK support a collection of shared libraries that software can use to access the Windows API.This article provides an overview of the core libraries that are included with every modern Windows installation, on top of which most Windows applications are built.
The ABI took shape in 1990 and was never updated since 1994. It is only defined for 32-bit MIPS, but GCC has created a 64-bit variation called O64. [9] For 64-bit, the N64 ABI (not related to Nintendo 64) by Silicon Graphics is most commonly used. The most important improvement is that eight registers are now available for argument passing; It ...
Flat thunks allowed 32-bit code to call into 16-bit libraries, and the scheme was used extensively inside Windows 95's libraries to avoid porting the whole OS to Win32 in one batch. In Windows NT, the OS was pure 32-bit, except parts for compatibility with 16-bit applications, and only generic thunks were available to thunk from Win16 to Win32 ...
The IBM System/360 of the 1960s was an early 32-bit computer; it had 32-bit integer registers, although it only used the low order 24 bits of a word for addresses, resulting in a 16 MiB (16 × 1024 2 bytes) address space. 32-bit superminicomputers, such as the DEC VAX, became common in the 1970s, and 32-bit microprocessors, such as the Motorola ...
Further, the kernel itself (at least in the case of Linux) operates independently of any libraries. On Microsoft Windows, the core system dynamic libraries provide an implementation of the C standard library for the Microsoft Visual C++ compiler v6.0; the C standard library for newer versions of the Microsoft Visual C++ compiler is provided by ...