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/* 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 */
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