libguile/instructions.h

   1 /* Copyright (C) 2001, 2009, 2012, 2013 Free Software Foundation, Inc.
   2  *
   3  * This library is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU Lesser General Public License
   5  * as published by the Free Software Foundation; either version 3 of
   6  * the License, or (at your option) any later version.
   7  *
   8  * This library is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * Lesser General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public
  14  * License along with this library; if not, write to the Free Software
  15  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  16  * 02110-1301 USA
  17  */
  18
  19 #ifndef _SCM_INSTRUCTIONS_H_
  20 #define _SCM_INSTRUCTIONS_H_
  21
  22 #include <libguile.h>
  23 #include <libguile/vm-operations.h>
  24
  25 enum scm_rtl_opcode
  26   {
  27 #define ENUM(opcode, tag, name, meta) scm_rtl_op_##tag = opcode,
  28     FOR_EACH_VM_OPERATION(ENUM)
  29 #undef ENUM
  30   };
  31
  32 #define SCM_PACK_RTL_8_8_8(op,a,b,c) ((op) | ((a) << 8) | ((b) << 16) | ((c) << 24))
  33 #define SCM_PACK_RTL_8_16(op,a,b) ((op) | ((a) << 8) | ((b) << 16))
  34 #define SCM_PACK_RTL_16_8(op,a,b) ((op) | ((a) << 8) | ((b) << 24))
  35 #define SCM_PACK_RTL_12_12(op,a,b) ((op) | ((a) << 8) | ((b) << 20))
  36 #define SCM_PACK_RTL_24(op,a) ((op) | ((a) << 8))
  37
  38 #define SCM_UNPACK_RTL_8_8_8(op,a,b,c)    \
  39   do                                      \
  40     {                                     \
  41       a = (op >> 8) & 0xff;               \
  42       b = (op >> 16) & 0xff;              \
  43       c = op >> 24;                       \
  44     }                                     \
  45   while (0)
  46
  47 #define SCM_UNPACK_RTL_8_16(op,a,b)       \
  48   do                                      \
  49     {                                     \
  50       a = (op >> 8) & 0xff;               \
  51       b = op >> 16;                       \
  52     }                                     \
  53   while (0)
  54
  55 #define SCM_UNPACK_RTL_16_8(op,a,b)       \
  56   do                                      \
  57     {                                     \
  58       a = (op >> 8) & 0xffff;             \
  59       b = op >> 24;                       \
  60     }                                     \
  61   while (0)
  62
  63 #define SCM_UNPACK_RTL_12_12(op,a,b)      \
  64   do                                      \
  65     {                                     \
  66       a = (op >> 8) & 0xfff;              \
  67       b = op >> 20;                       \
  68     }                                     \
  69   while (0)
  70
  71 #define SCM_UNPACK_RTL_24(op,a)           \
  72   do                                      \
  73     {                                     \
  74       a = op >> 8;                        \
  75     }                                     \
  76   while (0)
  77
  78 #define SCM_VM_NUM_INSTRUCTIONS (1<<8)
  79 #define SCM_VM_INSTRUCTION_MASK (SCM_VM_NUM_INSTRUCTIONS-1)
  80
  81 SCM_INTERNAL SCM scm_instruction_list (void);
  82
  83 SCM_INTERNAL void scm_bootstrap_instructions (void);
  84 SCM_INTERNAL void scm_init_instructions (void);
  85
  86 #endif /* _SCM_INSTRUCTIONS_H_ */
  87
  88 /*
  89   Local Variables:
  90   c-file-style: "gnu"
  91   End:
  92 */