94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
/* Declarations for stacks of tokenized Xtensa instructions.
|
|
Copyright (C) 2003, 2004, 2007 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 3, 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 "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];
|
|
unsigned linenum;
|
|
|
|
/* Filled out by relaxation_requirements: */
|
|
enum xtensa_relax_statesE subtype;
|
|
int literal_space;
|
|
/* Filled out by vinsn_to_insnbuf: */
|
|
symbolS *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 *);
|
|
|
|
|
|
/* vliw_insn: bundles of TInsns. */
|
|
|
|
typedef struct vliw_insn
|
|
{
|
|
xtensa_format format;
|
|
int num_slots;
|
|
unsigned int inside_bundle;
|
|
TInsn slots[MAX_SLOTS];
|
|
xtensa_insnbuf insnbuf;
|
|
xtensa_insnbuf slotbuf[MAX_SLOTS];
|
|
} vliw_insn;
|
|
|
|
#endif /* !XTENSA_ISTACK_H */
|