+/* Advance PC across any function entry prologue instructions
+ to reach some "real" code. */
+
+CORE_ADDR
+vax_skip_prologue (pc)
+ CORE_ADDR pc;
+{
+ register int op = (unsigned char) read_memory_integer (pc, 1);
+ if (op == 0x11)
+ pc += 2; /* skip brb */
+ if (op == 0x31)
+ pc += 3; /* skip brw */
+ if (op == 0xC2
+ && ((unsigned char) read_memory_integer (pc + 2, 1)) == 0x5E)
+ pc += 3; /* skip subl2 */
+ if (op == 0x9E
+ && ((unsigned char) read_memory_integer (pc + 1, 1)) == 0xAE
+ && ((unsigned char) read_memory_integer (pc + 3, 1)) == 0x5E)
+ pc += 4; /* skip movab */
+ if (op == 0x9E
+ && ((unsigned char) read_memory_integer (pc + 1, 1)) == 0xCE
+ && ((unsigned char) read_memory_integer (pc + 4, 1)) == 0x5E)
+ pc += 5; /* skip movab */
+ if (op == 0x9E
+ && ((unsigned char) read_memory_integer (pc + 1, 1)) == 0xEE
+ && ((unsigned char) read_memory_integer (pc + 6, 1)) == 0x5E)
+ pc += 7; /* skip movab */
+ return pc;
+}
+
+/* Return number of args passed to a frame.
+ Can return -1, meaning no way to tell. */
+
+int
+vax_frame_num_args (fi)
+ struct frame_info *fi;
+{
+ return (0xff & read_memory_integer (FRAME_ARGS_ADDRESS (fi), 1));
+}
+
+
+