Add coreinit coroutine API.

include/coreinit/coroutine.h

@@ -0,0 +1,59 @@
+#pragma once
+#include <wut.h>
+
+/**
+ * \defgroup coreinit_coroutine Coroutines
+ * \ingroup coreinit
+ * @{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct OSCoroutine OSCoroutine;
+
+struct OSCoroutine
+{
+   uint32_t nia;
+   uint32_t cr;
+   uint32_t ugqr1;
+   uint32_t stack;
+   uint32_t sda2Base;
+   uint32_t sdaBase;
+   uint32_t gpr[18];
+   double fpr[18];
+   double psr[18];
+};
+CHECK_OFFSET(OSCoroutine, 0x00, nia);
+CHECK_OFFSET(OSCoroutine, 0x04, cr);
+CHECK_OFFSET(OSCoroutine, 0x08, ugqr1);
+CHECK_OFFSET(OSCoroutine, 0x0C, stack);
+CHECK_OFFSET(OSCoroutine, 0x10, sda2Base);
+CHECK_OFFSET(OSCoroutine, 0x14, sdaBase);
+CHECK_OFFSET(OSCoroutine, 0x18, gpr);
+CHECK_OFFSET(OSCoroutine, 0x60, fpr);
+CHECK_OFFSET(OSCoroutine, 0xF0, psr);
+CHECK_SIZE(OSCoroutine, 0x180);
+
+void
+OSInitCoroutine(OSCoroutine *coroutine,
+                void *entry,
+                void *stack);
+
+uint32_t
+OSLoadCoroutine(OSCoroutine *coroutine,
+                uint32_t result);
+
+uint32_t
+OSSaveCoroutine(OSCoroutine *coroutine);
+
+void
+OSSwitchCoroutine(OSCoroutine *from,
+                  OSCoroutine *to);
+
+#ifdef __cplusplus
+}
+#endif
+
+/** @} */

rpl/libcoreinit/exports.h

@@ -51,6 +51,12 @@ EXPORT(OSGetCoreId);
 EXPORT(OSGetMainCoreId);
 EXPORT(OSIsMainCore);
 
+// coreinit/coroutine.h
+EXPORT(OSInitCoroutine);
+EXPORT(OSLoadCoroutine);
+EXPORT(OSSaveCoroutine);
+EXPORT(OSSwitchCoroutine);
+
 // coreinit/debug.h
 EXPORT(OSConsoleWrite);
 EXPORT(OSReport);