thermosphere: add fpu regs save/restore

thermosphere/src/fpu.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2019 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "utils.h"
+
+typedef struct FpuRegisterStorage {
+    u128    q[32];
+    u64     fpsr;
+    u64     fpcr;
+} FpuRegisterStorage;
+
+extern FpuRegisterStorage g_fpuRegisterStorage[4];
+
+void fpuDumpRegisters(u32 coreList);
+void fpuRestoreRegisters(u32 coreList);