| 1 | /* Declarations for stacks of tokenized Xtensa instructions.
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| 2 | Copyright (C) 2003 Free Software Foundation, Inc.
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| 3 |
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| 4 | This file is part of GAS, the GNU Assembler.
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| 5 |
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| 6 | GAS is free software; you can redistribute it and/or modify
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| 7 | it under the terms of the GNU General Public License as published by
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| 8 | the Free Software Foundation; either version 2, or (at your option)
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| 9 | any later version.
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| 10 |
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| 11 | GAS is distributed in the hope that it will be useful,
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | GNU General Public License for more details.
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| 15 |
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| 16 | You should have received a copy of the GNU General Public License
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| 17 | along with GAS; see the file COPYING. If not, write to the Free
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| 18 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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| 19 | 02111-1307, USA. */
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| 20 |
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| 21 | #ifndef XTENSA_ISTACK_H
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| 22 | #define XTENSA_ISTACK_H
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| 23 |
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| 24 | #include "xtensa-isa.h"
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| 25 |
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| 26 | #define MAX_ISTACK 12
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| 27 | #define MAX_INSN_ARGS 6
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| 28 |
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| 29 | enum itype_enum
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| 30 | {
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| 31 | ITYPE_INSN,
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| 32 | ITYPE_LITERAL,
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| 33 | ITYPE_LABEL
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| 34 | };
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| 35 |
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| 36 |
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| 37 | /* Literals have 1 token and no opcode.
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| 38 | Labels have 1 token and no opcode. */
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| 39 |
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| 40 | typedef struct tinsn_struct
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| 41 | {
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| 42 | enum itype_enum insn_type;
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| 43 |
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| 44 | bfd_boolean is_specific_opcode;
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| 45 | xtensa_opcode opcode; /* Literals have an invalid opcode. */
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| 46 | int ntok;
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| 47 | expressionS tok[MAX_INSN_ARGS];
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| 48 | } TInsn;
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| 49 |
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| 50 |
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| 51 | /* tinsn_stack: This is a stack of instructions to be placed. */
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| 52 |
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| 53 | typedef struct tinsn_stack
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| 54 | {
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| 55 | int ninsn;
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| 56 | TInsn insn[MAX_ISTACK];
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| 57 | } IStack;
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| 58 |
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| 59 |
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| 60 | void istack_init PARAMS ((IStack *));
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| 61 | bfd_boolean istack_empty PARAMS ((IStack *));
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| 62 | bfd_boolean istack_full PARAMS ((IStack *));
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| 63 | TInsn * istack_top PARAMS ((IStack *));
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| 64 | void istack_push PARAMS ((IStack *, TInsn *));
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| 65 | TInsn * istack_push_space PARAMS ((IStack *));
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| 66 | void istack_pop PARAMS ((IStack *));
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| 67 |
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| 68 | /* TInsn utilities. */
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| 69 | void tinsn_init PARAMS ((TInsn *));
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| 70 | void tinsn_copy PARAMS ((TInsn *, const TInsn *));
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| 71 | expressionS *tinsn_get_tok PARAMS ((TInsn *, int));
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| 72 |
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| 73 | #endif /* !XTENSA_ISTACK_H */
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