/* Copyright 2001,2009,2012-2013,2018
     Free Software Foundation, Inc.

   This file is part of Guile.

   Guile is free software: you can redistribute it and/or modify it
   under the terms of the GNU Lesser General Public License as published
   by the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   Guile 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 Lesser General Public
   License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with Guile.  If not, see
   <https://www.gnu.org/licenses/>.  */

#ifndef _SCM_INSTRUCTIONS_H_
#define _SCM_INSTRUCTIONS_H_

#include <libguile/scm.h>
#include <libguile/vm-operations.h>

#ifdef BUILDING_LIBGUILE

enum scm_opcode
  {
#define ENUM(opcode, tag, name, meta) scm_op_##tag = opcode,
    FOR_EACH_VM_OPERATION(ENUM)
#undef ENUM
  };

#define SCM_PACK_OP_24(op,arg)      (scm_op_##op | (arg) << 8)
#define SCM_PACK_OP_8_8_8(op,a,b,c) SCM_PACK_OP_24 (op, (a) | ((b) << 8) | ((c) << 16))
#define SCM_PACK_OP_8_16(op,a,b)    SCM_PACK_OP_24 (op, (a) | (b) << 8)
#define SCM_PACK_OP_16_8(op,a,b)    SCM_PACK_OP_24 (op, (a) | (b) << 16)
#define SCM_PACK_OP_12_12(op,a,b)   SCM_PACK_OP_24 (op, (a) | (b) << 12)
#define SCM_PACK_OP_ARG_8_24(a,b)   ((a) | ((b) << 8))

#define SCM_VM_NUM_INSTRUCTIONS (1<<8)
#define SCM_VM_INSTRUCTION_MASK (SCM_VM_NUM_INSTRUCTIONS-1)

#endif /* BUILDING_LIBGUILE  */

SCM_INTERNAL SCM scm_instruction_list (void);

SCM_INTERNAL void scm_bootstrap_instructions (void);
SCM_INTERNAL void scm_init_instructions (void);

#endif /* _SCM_INSTRUCTIONS_H_ */