uint32_t Bgetsysmemsize(void)
{
#ifdef _WIN32
uint32_t siz = UINT32_MAX;
HMODULE lib = LoadLibrary("KERNEL32.DLL");
if (lib)
{
aGlobalMemoryStatusExType aGlobalMemoryStatusEx =
(aGlobalMemoryStatusExType)GetProcAddress(lib, "GlobalMemoryStatusEx");
if (aGlobalMemoryStatusEx)
{
//WinNT
MEMORYSTATUSEX memst;
memst.dwLength = sizeof(MEMORYSTATUSEX);
if (aGlobalMemoryStatusEx(&memst))
siz = (uint32_t)min(UINT32_MAX, memst.ullTotalPhys);
}
else
{
// Yeah, there's enough Win9x hatred here that a perfectly good workaround
// has been replaced by an error message. Oh well, we don't support 9x anyway.
initprintf("Bgetsysmemsize(): error determining system memory size!\n");
}
FreeLibrary(lib);
}
return siz;
#elif defined _3DS
return 16*1024*1024;
#elif (defined(_SC_PAGE_SIZE) || defined(_SC_PAGESIZE)) && defined(_SC_PHYS_PAGES) && !defined(GEKKO)
uint32_t siz = UINT32_MAX;
int64_t scpagesiz, scphyspages;
#ifdef _SC_PAGE_SIZE
scpagesiz = sysconf(_SC_PAGE_SIZE);
#else
scpagesiz = sysconf(_SC_PAGESIZE);
#endif
scphyspages = sysconf(_SC_PHYS_PAGES);
if (scpagesiz >= 0 && scphyspages >= 0)
siz = (uint32_t)min(UINT32_MAX, (int64_t)scpagesiz * (int64_t)scphyspages);
//initprintf("Bgetsysmemsize(): %d pages of %d bytes, %d bytes of system memory\n",
// scphyspages, scpagesiz, siz);
return siz;
#else
return UINT32_MAX;
#endif
}
//
// getsysmemsize() -- gets the amount of system memory in the machine
//
unsigned int Bgetsysmemsize(void)
{
#ifdef _WIN32
unsigned int siz = 0x7fffffff;
HMODULE lib;
WINBASEAPI BOOL WINAPI (*aGlobalMemoryStatusEx)(LPMEMORYSTATUSEX) = 0;
lib = LoadLibrary("KERNEL32.DLL");
if (lib) aGlobalMemoryStatusEx = (void *)GetProcAddress(lib, "GlobalMemoryStatusEx");
if (aGlobalMemoryStatusEx) {
//WinNT
MEMORYSTATUSEX memst;
memst.dwLength = sizeof(MEMORYSTATUSEX);
if (aGlobalMemoryStatusEx(&memst)) {
siz = (unsigned int)min(longlong(0x7fffffff), memst.ullTotalPhys);
}
} else {
//Win9x
MEMORYSTATUS memst;
GlobalMemoryStatus(&memst);
siz = (unsigned int)memst.dwTotalPhys;
}
if (lib) FreeLibrary(lib);
return siz;
#elif (defined(_SC_PAGE_SIZE) || defined(_SC_PAGESIZE)) && defined(_SC_PHYS_PAGES)
unsigned int siz = 0x7fffffff;
long scpagesiz, scphyspages;
#ifdef _SC_PAGE_SIZE
scpagesiz = sysconf(_SC_PAGE_SIZE);
#else
scpagesiz = sysconf(_SC_PAGESIZE);
#endif
scphyspages = sysconf(_SC_PHYS_PAGES);
if (scpagesiz >= 0 && scphyspages >= 0)
siz = (unsigned int)min(longlong(0x7fffffff), (int64)scpagesiz * (int64)scphyspages);
//initprintf("Bgetsysmemsize(): %d pages of %d bytes, %d bytes of system memory\n",
// scphyspages, scpagesiz, siz);
return siz;
#else
return 0x7fffffff;
#endif
}
