oops forgot that

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2026-08-14 04:22:33 -04:00 · 2019-08-03 18:01:45 +00:00
parent 3ebe19d728
commit 7dfe175f34
1823 changed files with 1202862 additions and 912 deletions
@@ -0,0 +1,45 @@
+#ifndef _STDARG_H_
+#define _STDARG_H_
+
+#include <ultra64.h>
+
+// When building with GCC, use the official vaarg macros to avoid warnings
+// and possibly bad codegen.
+#ifdef __GNUC__
+#define va_list __builtin_va_list
+#define va_start __builtin_va_start
+#define va_arg __builtin_va_arg
+#define va_end __builtin_va_end
+#else
+
+typedef char *va_list;
+#define _FP 1
+#define _INT 0
+#define _STRUCT 2
+
+#define _VA_FP_SAVE_AREA 0x10
+#define _VA_ALIGN(p, a) (((unsigned int)(((char *)p) + ((a) > 4 ? (a) : 4) - 1)) & -((a) > 4 ? (a) : 4))
+#define va_start(vp, parmN) (vp = ((va_list)&parmN + sizeof(parmN)))
+
+#define __va_stack_arg(list, mode)                          \
+    (                                                       \
+        ((list) = (char *)_VA_ALIGN(list, __builtin_alignof(mode)) + \
+                  _VA_ALIGN(sizeof(mode), 4)),              \
+        (((char *)list) - (_VA_ALIGN(sizeof(mode), 4) - sizeof(mode))))
+
+#define __va_double_arg(list, mode)                                                                    \
+    (                                                                                                  \
+        (((long)list & 0x1) /* 1 byte aligned? */                                                      \
+             ? (list = (char *)((long)list + 7), (char *)((long)list - 6 - _VA_FP_SAVE_AREA))          \
+             : (((long)list & 0x2) /* 2 byte aligned? */                                               \
+                    ? (list = (char *)((long)list + 10), (char *)((long)list - 24 - _VA_FP_SAVE_AREA)) \
+                    : __va_stack_arg(list, mode))))
+
+#define va_arg(list, mode) ((mode *)(((__builtin_classof(mode) == _FP &&          \
+                                       __builtin_alignof(mode) == sizeof(double)) \
+                                          ? __va_double_arg(list, mode)           \
+                                          : __va_stack_arg(list, mode))))[-1]
+#define va_end(__list)
+
+#endif
+#endif