1 /* Copyright (C) 2001, 2009, 2010, 2011 Free Software Foundation, Inc.
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.
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.
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
19 #ifndef _SCM_OBJCODES_H_
20 #define _SCM_OBJCODES_H_
24 /* Objcode data should be directly mappable to this C structure. */
27 scm_t_uint32 len
; /* the maximum index of base[] */
28 scm_t_uint32 metalen
; /* well, i lie. this many bytes at the end of
29 base[] for metadata */
31 scm_t_uint8 base[]; */
34 /* Return a pointer to the base of objcode OBJ. */
35 #define SCM_C_OBJCODE_BASE(obj) \
36 ((scm_t_uint8 *)(obj) + sizeof (struct scm_objcode))
38 #define SCM_OBJCODE_TYPE_MMAP (0)
39 #define SCM_OBJCODE_TYPE_BYTEVECTOR (1)
40 #define SCM_OBJCODE_TYPE_SLICE (2)
41 #define SCM_OBJCODE_TYPE_STATIC (3)
43 #define SCM_OBJCODE_P(x) (SCM_NIMP (x) && SCM_TYP7 (x) == scm_tc7_objcode)
44 #define SCM_OBJCODE_DATA(x) ((struct scm_objcode *) SCM_CELL_WORD_1 (x))
45 #define SCM_VALIDATE_OBJCODE(p,x) SCM_MAKE_VALIDATE (p, x, OBJCODE_P)
47 #define SCM_OBJCODE_LEN(x) (SCM_OBJCODE_DATA (x)->len)
48 #define SCM_OBJCODE_META_LEN(x) (SCM_OBJCODE_DATA (x)->metalen)
49 #define SCM_OBJCODE_TOTAL_LEN(x) (SCM_OBJCODE_LEN (x) + SCM_OBJCODE_META_LEN (x))
50 #define SCM_OBJCODE_BASE(x) (SCM_C_OBJCODE_BASE (SCM_OBJCODE_DATA (x)))
52 #define SCM_MAKE_OBJCODE_TAG(type, flags) (scm_tc7_objcode | (type << 8) | (flags << 16))
53 #define SCM_OBJCODE_TYPE(x) ((SCM_CELL_WORD_0 (x) >> 8) & 0xff)
54 #define SCM_OBJCODE_FLAGS(x) (SCM_CELL_WORD_0 (x) >> 16)
55 #define SCM_OBJCODE_IS_MMAP(x) (SCM_OBJCODE_TYPE (x) == SCM_OBJCODE_TYPE_MMAP)
56 #define SCM_OBJCODE_IS_BYTEVECTOR(x) (SCM_OBJCODE_TYPE (x) == SCM_OBJCODE_TYPE_BYTEVECTOR)
57 #define SCM_OBJCODE_IS_SLICE(x) (SCM_OBJCODE_TYPE (x) == SCM_OBJCODE_TYPE_SLICE)
58 #define SCM_OBJCODE_IS_STATIC(x) (SCM_OBJCODE_TYPE (x) == SCM_OBJCODE_TYPE_STATIC)
60 #define SCM_OBJCODE_NATIVE_CODE(x) (SCM_CELL_WORD_3 (x))
61 #define SCM_SET_OBJCODE_NATIVE_CODE(x, code) (SCM_SET_CELL_WORD_3 (x, code))
63 SCM
scm_c_make_objcode_slice (SCM parent
, const scm_t_uint8
*ptr
);
64 SCM_API SCM
scm_load_objcode (SCM file
);
65 SCM_API SCM
scm_objcode_p (SCM obj
);
66 SCM_API SCM
scm_objcode_meta (SCM objcode
);
67 SCM_API SCM
scm_bytecode_to_objcode (SCM bytecode
);
68 SCM_API SCM
scm_objcode_to_bytecode (SCM objcode
);
69 SCM_API SCM
scm_write_objcode (SCM objcode
, SCM port
);
71 SCM_INTERNAL
void scm_i_objcode_print (SCM objcode
, SCM port
,
72 scm_print_state
*pstate
);
73 SCM_INTERNAL
void scm_bootstrap_objcodes (void);
74 SCM_INTERNAL
void scm_init_objcodes (void);
76 #endif /* _SCM_OBJCODES_H_ */