[deliverable/binutils-gdb.git] / gas / config / xtensa-istack.h

/* Declarations for stacks of tokenized Xtensa instructions.
   Copyright (C) 2003, 2004 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, 51 Franklin Street - Fifth Floor, Boston, MA
   02110-1301, USA.  */

#ifndef XTENSA_ISTACK_H
#define XTENSA_ISTACK_H

#include "dwarf2dbg.h"
#include "xtensa-isa.h"

#define MAX_ISTACK 12
#define MAX_INSN_ARGS 10

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;

  xtensa_opcode opcode;	/* Literals have an invalid opcode.  */
  bfd_boolean is_specific_opcode; 
  bfd_boolean keep_wide; 
  int ntok;
  expressionS tok[MAX_INSN_ARGS];
  struct dwarf2_line_info loc;

  struct fixP *fixup;

  /* Filled out by relaxation_requirements:  */
  bfd_boolean record_fix;
  enum xtensa_relax_statesE subtype;
  int literal_space;
  /* Filled out by vinsn_to_insnbuf:  */
  symbolS *symbol;
  symbolS *sub_symbol;
  offsetT offset;
  fragS *literal_frag;
} 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 (IStack *);
bfd_boolean istack_empty (IStack *);
bfd_boolean istack_full (IStack *);
TInsn *istack_top (IStack *);
void istack_push (IStack *, TInsn *);
TInsn *istack_push_space (IStack *); 
void istack_pop (IStack *);

/* TInsn utilities.  */
void tinsn_init (TInsn *);
expressionS *tinsn_get_tok (TInsn *, int);


/* vliw_insn: bundles of TInsns.  */

typedef struct vliw_insn
{
  xtensa_format format;
  xtensa_insnbuf insnbuf;
  int num_slots;
  unsigned int inside_bundle;
  TInsn slots[MAX_SLOTS];
  xtensa_insnbuf slotbuf[MAX_SLOTS];
} vliw_insn;

#endif /* !XTENSA_ISTACK_H */
Commit	Line	Data
88da6820	1	/* Declarations for stacks of tokenized Xtensa instructions.
43cd72b9	2	Copyright (C) 2003, 2004 Free Software Foundation, Inc.
88da6820 NC	3
	4	This file is part of GAS, the GNU Assembler.
	5
	6	GAS is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 2, or (at your option)
	9	any later version.
	10
	11	GAS is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with GAS; see the file COPYING. If not, write to the Free
4b4da160 NC	18	Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
4b4da160 NC	19	02110-1301, USA. */
88da6820 NC	20
	21	#ifndef XTENSA_ISTACK_H
	22	#define XTENSA_ISTACK_H
	23
43cd72b9	24	#include "dwarf2dbg.h"
88da6820 NC	25	#include "xtensa-isa.h"
	26
	27	#define MAX_ISTACK 12
43cd72b9	28	#define MAX_INSN_ARGS 10
88da6820 NC	29
	30	enum itype_enum
	31	{
	32	ITYPE_INSN,
	33	ITYPE_LITERAL,
	34	ITYPE_LABEL
	35	};
	36
	37
	38	/* Literals have 1 token and no opcode.
	39	Labels have 1 token and no opcode. */
	40
	41	typedef struct tinsn_struct
	42	{
	43	enum itype_enum insn_type;
43cd72b9	44
88da6820	45	xtensa_opcode opcode; /* Literals have an invalid opcode. */
43cd72b9 BW	46	bfd_boolean is_specific_opcode;
43cd72b9 BW	47	bfd_boolean keep_wide;
88da6820 NC	48	int ntok;
88da6820 NC	49	expressionS tok[MAX_INSN_ARGS];
43cd72b9 BW	50	struct dwarf2_line_info loc;
	51
	52	struct fixP *fixup;
	53
	54	/* Filled out by relaxation_requirements: */
	55	bfd_boolean record_fix;
	56	enum xtensa_relax_statesE subtype;
	57	int literal_space;
	58	/* Filled out by vinsn_to_insnbuf: */
	59	symbolS *symbol;
	60	symbolS *sub_symbol;
	61	offsetT offset;
	62	fragS *literal_frag;
88da6820 NC	63	} TInsn;
	64
	65
	66	/* tinsn_stack: This is a stack of instructions to be placed. */
	67
	68	typedef struct tinsn_stack
	69	{
	70	int ninsn;
	71	TInsn insn[MAX_ISTACK];
	72	} IStack;
	73
	74
7fa3d080 BW	75	void istack_init (IStack *);
	76	bfd_boolean istack_empty (IStack *);
	77	bfd_boolean istack_full (IStack *);
	78	TInsn istack_top (IStack );
	79	void istack_push (IStack , TInsn );
	80	TInsn istack_push_space (IStack );
	81	void istack_pop (IStack *);
88da6820 NC	82
88da6820 NC	83	/* TInsn utilities. */
7fa3d080 BW	84	void tinsn_init (TInsn *);
7fa3d080 BW	85	expressionS tinsn_get_tok (TInsn , int);
43cd72b9 BW	86
	87
	88	/* vliw_insn: bundles of TInsns. */
	89
	90	typedef struct vliw_insn
	91	{
	92	xtensa_format format;
	93	xtensa_insnbuf insnbuf;
	94	int num_slots;
	95	unsigned int inside_bundle;
	96	TInsn slots[MAX_SLOTS];
	97	xtensa_insnbuf slotbuf[MAX_SLOTS];
	98	} vliw_insn;
88da6820 NC	99
88da6820 NC	100	#endif /* !XTENSA_ISTACK_H */