Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.

sdk/lib/runtmchk/i386/_RTC_CheckEsp.S

@@ -0,0 +1,49 @@
+/*
+ * PROJECT:         MSVC runtime check support library
+ * LICENSE:         BSD - See COPYING.ARM in the top level directory
+ * PURPOSE:         Provides support functions for MSVC runtime checks
+ * PROGRAMMER:      Timo Kreuzer (timo.kreuzer@reactos.org)
+ */
+
+#include <asm.inc>
+.code
+
+EXTERN __RTC_Failure:PROC
+
+/*
+
+    This function is invoked like this:
+
+        mov esi, esp
+        // Do the actual function call
+        cmp esp, esi
+        call __RTC_CheckEsp
+
+    http://stackoverflow.com/questions/3914750/hows-rtc-checkesp-implemented
+*/
+PUBLIC __RTC_CheckEsp
+__RTC_CheckEsp:
+
+    /* We check if the zero flag is set, and if it is, everything is fine
+       and we return to the caller */
+    je __RTC_CheckEsp_return
+
+    push ebp
+    mov ebp, esp
+    pusha
+
+    // void _RTC_Failure(void* retaddr, int errnum);
+    push 0 // errnum
+    push dword ptr [esp + 4] // retaddr
+    call __RTC_Failure
+    add esp, 8
+
+    popa
+    pop ebp
+
+__RTC_CheckEsp_return:
+    ret
+
+END
+
+