--- mstools/h/stdarg.h	2018/08/09 18:20:01	1.1
+++ mstools/h/stdarg.h	2018/08/09 18:20:30	1.1.1.2
@@ -23,12 +23,43 @@ typedef char *	va_list;
 #define _VA_LIST_DEFINED
 #endif
 
+#ifdef i386
+
 #define _INTSIZEOF(n)	( (sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1) ) 
 
 #define va_start(ap,v)	( ap = (va_list)&v + _INTSIZEOF(v) )
 #define va_arg(ap,t)	( *(t *)((ap += _INTSIZEOF(t)) - _INTSIZEOF(t)) )
 #define va_end(ap)	( ap = (va_list)0 )
 
+#endif
+
+#ifdef M_MRX000
+#define va_start(ap,v) _va_start(&(ap),0)
+#define va_arg(ap,t) *((t*)(_va_arg(&(ap),sizeof(t),(t*)0,(t*)0)))
+#define va_end(ap)
+#else
+
+#ifdef MIPS
+
+#define va_start(ap,v) ap  = (va_list)&v + sizeof(v)
+#define va_end(list)
+#define va_arg(list, mode) ((mode *)(list =\
+ (char *) ((((int)list + (__builtin_alignof(mode)<=4?3:7)) &\
+ (__builtin_alignof(mode)<=4?-4:-8))+sizeof(mode))))[-1]
+
+/*  +++++++++++++++++++++++++++++++++++++++++++
+    Because of parameter passing conventions in C:
+    use mode=int for char, and short types
+    use mode=double for float types
+    use a pointer for array types
+    +++++++++++++++++++++++++++++++++++++++++++ */
+
+
+#endif
+#endif
+
+
+
 #ifdef __cplusplus
 }
 #endif