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1 | /* Copyright (C) 2000 Free Software Foundation, Inc. |
2 | * | |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
16 | * Boston, MA 02111-1307 USA | |
17 | * | |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
40 | * If you do not wish that, delete this exception notice. */ | |
41 | ||
42 | /* This file is included in vm_engine.c */ | |
43 | ||
44 | VM_DEFINE_INSTRUCTION (load_integer, "load-integer", -1) | |
45 | { | |
46 | size_t len; | |
47 | FETCH_LENGTH (len); | |
48 | SCM_MISC_ERROR ("Not implemented yet", SCM_EOL); | |
49 | ip += len; | |
50 | NEXT; | |
51 | } | |
52 | ||
53 | VM_DEFINE_INSTRUCTION (load_symbol, "load-symbol", -1) | |
54 | { | |
55 | size_t len; | |
56 | FETCH_LENGTH (len); | |
57 | PUSH (scm_mem2symbol (ip, len)); | |
58 | ip += len; | |
59 | NEXT; | |
60 | } | |
61 | ||
62 | VM_DEFINE_INSTRUCTION (load_string, "load-string", -1) | |
63 | { | |
64 | size_t len; | |
65 | FETCH_LENGTH (len); | |
66 | PUSH (scm_makfromstr (ip, len, 0)); | |
67 | ip += len; | |
68 | NEXT; | |
69 | } | |
70 | ||
71 | VM_DEFINE_INSTRUCTION (load_keyword, "load-keyword", -1) | |
72 | { | |
73 | SCM sym; | |
74 | size_t len; | |
75 | FETCH_LENGTH (len); | |
76 | sym = scm_mem2symbol (ip, len); | |
77 | PUSH (scm_make_keyword_from_dash_symbol (sym)); | |
78 | ip += len; | |
79 | NEXT; | |
80 | } | |
81 | ||
82 | VM_DEFINE_INSTRUCTION (load_module, "load-module", -1) | |
83 | { | |
84 | size_t len; | |
85 | FETCH_LENGTH (len); | |
86 | PUSH (scm_c_lookup_env (scm_mem2symbol (ip, len))); | |
87 | ip += len; | |
88 | NEXT; | |
89 | } | |
90 | ||
91 | VM_DEFINE_INSTRUCTION (load_program, "load-program", -1) | |
92 | { | |
93 | size_t len; | |
94 | SCM prog, x; | |
95 | ||
96 | FETCH_LENGTH (len); | |
97 | prog = scm_c_make_program (ip, len, program); | |
98 | ||
99 | x = sp[0]; | |
100 | if (SCM_INUMP (x)) | |
101 | { | |
102 | int i = SCM_INUM (x); | |
103 | SCM_PROGRAM_NARGS (prog) = i >> 5; /* 6-5 bits */ | |
104 | SCM_PROGRAM_NREST (prog) = (i >> 4) & 1; /* 4 bit */ | |
105 | SCM_PROGRAM_NLOCS (prog) = i & 15; /* 3-0 bits */ | |
106 | } | |
107 | else | |
108 | { | |
109 | SCM_PROGRAM_NARGS (prog) = SCM_INUM (sp[3]); | |
110 | SCM_PROGRAM_NREST (prog) = SCM_INUM (sp[2]); | |
111 | SCM_PROGRAM_NLOCS (prog) = SCM_INUM (sp[1]); | |
112 | if (SCM_VECTORP (x)) | |
113 | SCM_PROGRAM_OBJS (prog) = x; | |
114 | sp += 3; | |
115 | } | |
116 | ||
117 | ip += len; | |
118 | *sp = prog; | |
119 | NEXT; | |
120 | } | |
121 | ||
122 | VM_DEFINE_INSTRUCTION (link, "link", 0) | |
123 | { | |
124 | sp[1] = scm_c_env_vcell (sp[1], sp[0], 1); | |
125 | DROP (); | |
126 | NEXT; | |
127 | } | |
128 | ||
129 | /* | |
130 | Local Variables: | |
131 | c-file-style: "gnu" | |
132 | End: | |
133 | */ |