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88 lines
3.0 KiB
88 lines
3.0 KiB
/*
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* FCML - Free Code Manipulation Library.
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* Copyright (C) 2010-2019 Slawomir Wojtasiak
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/** @file fcml_choosers.h
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*
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* API for instruction choosers.
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*
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* @copyright Copyright (C) 2010-2015 Slawomir Wojtasiak. All rights reserved.
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* This project is released under the GNU Lesser General Public License.
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*/
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#ifndef FCML_CHOOSER_H_
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#define FCML_CHOOSER_H_
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#include "fcml_lib_export.h"
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#include "fcml_types.h"
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#include "fcml_common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Returns next instructions from the iterator.
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* Instruction chooser uses this function to get next instruction from the chain.
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* @param instruction Current instruction.
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*/
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typedef fcml_ptr (*fcml_fnp_chooser_next)(fcml_ptr instruction);
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/** Gets instruction code from current abstract instruction pointer.
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* Gets instruction pointer and fills given instruction code
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* holder with the binary code of the instruction.
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* @param instruction Instruction pointer.
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* @param instruction_code Holder for the instruction code.
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*/
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typedef void (*fcml_fnp_chooser_extract)(fcml_ptr instruction,
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fcml_st_instruction_code *instruction_code);
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/** Instruction chooser context used to communicate with environment. */
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typedef struct fcml_st_chooser_context {
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/** First instruction in the chain. */
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fcml_ptr instruction;
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/** Gets next instruction code from iterator. */
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fcml_fnp_chooser_next next;
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/** Extracts instruction code from abstract instruction pointer.*/
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fcml_fnp_chooser_extract extract;
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} fcml_st_chooser_context;
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/** Instruction chooser function pointer declaration.
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* @param chooser_context Instruction chooser context.
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*/
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typedef fcml_ptr (LIB_CALL *fcml_fnp_asm_instruction_chooser)(
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fcml_st_chooser_context *chooser_context);
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/** Default instruction chooser which chooses the shortest instruction available.
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* @param chooser_context Instruction chooser context.
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*/
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fcml_ptr LIB_EXPORT LIB_CALL fcml_fn_asm_default_instruction_chooser(
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fcml_st_chooser_context *chooser_context);
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/** NULL chooser which do not chose anything.
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* @param chooser_context Instruction chooser context.
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*/
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fcml_ptr LIB_EXPORT LIB_CALL fcml_fn_asm_no_instruction_chooser(
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fcml_st_chooser_context *chooser_context);
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#ifdef __cplusplus
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}
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#endif
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#endif /* FCML_CHOOSER_H_ */
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