fastcall.cpp

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C++ 代码 · 共 58 行

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// looks like __fastcall is
// (__cdecl) parm callee [ecx] [edx] [] modify [eax edx ecx]
#include <malloc.h>

extern "C" int __fastcall foo( char c );
extern int __fastcall foo( char c, char d );
extern int __fastcall foo( char c, char d, char e );
extern int __fastcall foo( char c, char d, char e, char f );

void __fastcall ack()
{
    foo( 'a', 'b' );
}

struct S {
    int a[100];
};

S x;
int __fastcall bar( char a, char b, char c, char d, S *p ) {
    x = *p;
    p = (S*) alloca( a );
    int q;
    return ( q = foo(a) + foo(a,b) + foo(a,b,c) + foo( a,b,c,d), ack(), q );
}