patch-2.1.44 linux/include/asm-mips/branch.h

• Lines: 27
• Date: Thu Jun 26 12:33:39 1997
• Orig file: v2.1.43/linux/include/asm-mips/branch.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.43/linux/include/asm-mips/branch.h linux/include/asm-mips/branch.h
@@ -0,0 +1,26 @@
+/*
+ * Branch and jump emulation.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996, 1997 by Ralf Baechle
+ */
+#include <asm/ptrace.h>
+
+extern inline int delay_slot(struct pt_regs *regs)
+{
+	return regs->cp0_cause & CAUSEF_BD;
+}
+
+extern int __compute_return_epc(struct pt_regs *regs);
+extern inline int compute_return_epc(struct pt_regs *regs)
+{
+	if (delay_slot(regs)) {
+		return __compute_return_epc(regs);
+	}
+
+	regs->cp0_epc += 4;
+	return 0;
+}