Initial revision

From-SVN: r15

gcc/ginclude/va-spur.h

+/*  varargs.h for SPUR */
+
+/* NB.  This is NOT the definition needed for the new ANSI proposed
+   standard */
+ 
+
+struct __va_struct { char __regs[20]; };
+
+#define va_alist __va_regs, __va_stack
+
+/* In GCC version 2, we want an ellipsis at the end of the declaration
+   of the argument list.  GCC version 1 can't parse it.  */
+
+#if __GNUC__ > 1
+#define __va_ellipsis ...
+#else
+#define __va_ellipsis
+#endif
+
+/* The ... causes current_function_varargs to be set in cc1.  */
+#define va_dcl struct __va_struct __va_regs; int __va_stack; 
+
+typedef struct {
+    int __pnt;
+    char *__regs;
+    char *__stack;
+} va_list;
+
+#define va_start(pvar) \
+     ((pvar).__pnt = 0, (pvar).__regs = __va_regs.__regs, \
+      (pvar).__stack = (char *) &__va_stack)
+#define va_end(pvar)
+
+#define va_arg(pvar,type)  \
+    ({  type __va_result; \
+        if ((pvar).__pnt >= 20) { \
+           __va_result = *( (type *) ((pvar).__stack + (pvar).__pnt - 20)); \
+	   (pvar).__pnt += (sizeof(type) + 7) & ~7; \
+	} \
+	else if ((pvar).__pnt + sizeof(type) > 20) { \
+	   __va_result = * (type *) (pvar).__stack; \
+	   (pvar).__pnt = 20 + ( (sizeof(type) + 7) & ~7); \
+	} \
+	else if (sizeof(type) == 8) { \
+	   union {double d; int i[2];} __u; \
+	   __u.i[0] = *(int *) ((pvar).__regs + (pvar).__pnt); \
+	   __u.i[1] = *(int *) ((pvar).__regs + (pvar).__pnt + 4); \
+	   __va_result = * (type *) &__u; \
+	   (pvar).__pnt += 8; \
+	} \
+	else { \
+	   __va_result = * (type *) ((pvar).__regs + (pvar).__pnt); \
+	   (pvar).__pnt += (sizeof(type) + 3) & ~3; \
+	} \
+	__va_result; })