Add Xtensa port (omitted from previous delta)

1 files changed, 73 insertions, 0 deletions

diff --git a/gas/config/xtensa-istack.h b/gas/config/xtensa-istack.h
new file mode 100644
index 0000000..a1cca2e
--- /dev/null
+++ b/gas/config/xtensa-istack.h
@@ -0,0 +1,73 @@
+/* Declarations for stacks of tokenized Xtensa instructions.
+   Copyright (C) 2003 Free Software Foundation, Inc.
+
+   This file is part of GAS, the GNU Assembler.
+
+   GAS is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   GAS is distributed in the hope that 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 GAS; see the file COPYING.  If not, write to the Free
+   Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+   02111-1307, USA.  */
+
+#ifndef XTENSA_ISTACK_H
+#define XTENSA_ISTACK_H
+
+#include "xtensa-isa.h"
+
+#define MAX_ISTACK 12
+#define MAX_INSN_ARGS 6
+
+enum itype_enum
+{
+  ITYPE_INSN,
+  ITYPE_LITERAL,
+  ITYPE_LABEL
+};
+
+
+/* Literals have 1 token and no opcode.
+   Labels have 1 token and no opcode.  */
+
+typedef struct tinsn_struct
+{
+  enum itype_enum insn_type;
+  
+  bfd_boolean is_specific_opcode; 
+  xtensa_opcode opcode;	/* Literals have an invalid opcode.  */
+  int ntok;
+  expressionS tok[MAX_INSN_ARGS];
+} TInsn;
+
+
+/* tinsn_stack:  This is a stack of instructions to  be placed.  */
+
+typedef struct tinsn_stack
+{
+  int ninsn;
+  TInsn insn[MAX_ISTACK];
+} IStack;
+
+
+void         istack_init        PARAMS ((IStack *));
+bfd_boolean  istack_empty       PARAMS ((IStack *));
+bfd_boolean  istack_full        PARAMS ((IStack *));
+TInsn *      istack_top         PARAMS ((IStack *));
+void         istack_push        PARAMS ((IStack *, TInsn *));
+TInsn *      istack_push_space  PARAMS ((IStack *)); 
+void         istack_pop         PARAMS ((IStack *));
+
+/* TInsn utilities.  */
+void         tinsn_init         PARAMS ((TInsn *));
+void         tinsn_copy         PARAMS ((TInsn *, const TInsn *));
+expressionS *tinsn_get_tok      PARAMS ((TInsn *, int));
+
+#endif /* !XTENSA_ISTACK_H */