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/*
* Copyright (c) 2025 Ian Marco Moffett and L5 engineers
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Description: Pirho PIIR AMD64 backend
* Author: Ian Marco Moffett
*/
#ifndef _MACHINE_PIIR_H_
#define _MACHINE_PIIR_H_ 1
#include <os/np.h>
#include <np/piir.h>
/*
* Convert an IR byte into one or more machine instruction
* bytes
*
* @work: Current work
* @vm: Virtual machine state
* @input: Input to convert
*
* Returns length written on success, otherwise a less than
* zero value on failure.
*/
ssize_t md_piir_decode(
struct np_work *work, struct piir_vm *vm,
ir_byte_t input
);
/*
* Allocate a register ID for use in the IR
*
* @work: Current work
* @vm: Virtual machine state
* @flags: Optional flags
*
* Returns the allocated register ID on success, otherwise
* a less than zero value on failure
*/
reg_t md_alloc_reg(struct np_work *work, struct piir_vm *vm, int flags);
/*
* Free one or more registers
*
* @work: Current work
* @vm: Virtual machine state
* @reg: Register to free
*/
void md_free_reg(struct np_work *work, struct piir_vm *vm, reg_t reg);
#endif /* !_MACHINE_PIIR_H_ */
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