(svn r6420) -Feature [Win32]: Use an existing console if openttd was started from one.
Unfortunately this only works for WindowsXP or higher, all older MS-OS's
are stuck with the old behaviour.

		.CODE

PUBLIC	_get_save_esp
_get_save_esp:
		MOV	RAX,RSP
		RET

PUBLIC	_rdtsc
_rdtsc:
		RDTSC
		MOV RCX,RDX
		SHL RCX,32
		AND RAX,0FFFFFFFFh
		OR  RAX,RCX
		RET

		END