Commit | Line | Data |
---|---|---|
17e90c5e KN |
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 | ||
46cd9a34 | 44 | VM_DEFINE_INSTRUCTION (load_integer, "load-integer", -1, 0, 1) |
17e90c5e KN |
45 | { |
46 | size_t len; | |
ea9b4b29 | 47 | |
17e90c5e | 48 | FETCH_LENGTH (len); |
ea9b4b29 KN |
49 | if (len <= 4) |
50 | { | |
51 | long val = 0; | |
52 | while (len-- > 0) | |
53 | val = (val << 8) + FETCH (); | |
54 | PUSH (scm_long2num (val)); | |
55 | NEXT; | |
56 | } | |
57 | else | |
58 | SCM_MISC_ERROR ("load-integer: not implemented yet", SCM_EOL); | |
17e90c5e KN |
59 | } |
60 | ||
46cd9a34 | 61 | VM_DEFINE_INSTRUCTION (load_symbol, "load-symbol", -1, 0, 1) |
17e90c5e KN |
62 | { |
63 | size_t len; | |
64 | FETCH_LENGTH (len); | |
65 | PUSH (scm_mem2symbol (ip, len)); | |
66 | ip += len; | |
67 | NEXT; | |
68 | } | |
69 | ||
46cd9a34 | 70 | VM_DEFINE_INSTRUCTION (load_string, "load-string", -1, 0, 1) |
17e90c5e KN |
71 | { |
72 | size_t len; | |
73 | FETCH_LENGTH (len); | |
74 | PUSH (scm_makfromstr (ip, len, 0)); | |
75 | ip += len; | |
76 | NEXT; | |
77 | } | |
78 | ||
46cd9a34 | 79 | VM_DEFINE_INSTRUCTION (load_keyword, "load-keyword", -1, 0, 1) |
17e90c5e KN |
80 | { |
81 | SCM sym; | |
82 | size_t len; | |
83 | FETCH_LENGTH (len); | |
84 | sym = scm_mem2symbol (ip, len); | |
85 | PUSH (scm_make_keyword_from_dash_symbol (sym)); | |
86 | ip += len; | |
87 | NEXT; | |
88 | } | |
89 | ||
46cd9a34 | 90 | VM_DEFINE_INSTRUCTION (load_module, "load-module", -1, 0, 1) |
17e90c5e KN |
91 | { |
92 | size_t len; | |
93 | FETCH_LENGTH (len); | |
94 | PUSH (scm_c_lookup_env (scm_mem2symbol (ip, len))); | |
95 | ip += len; | |
96 | NEXT; | |
97 | } | |
98 | ||
46cd9a34 | 99 | VM_DEFINE_INSTRUCTION (load_program, "load-program", -1, 0, 1) |
17e90c5e KN |
100 | { |
101 | size_t len; | |
102 | SCM prog, x; | |
103 | ||
104 | FETCH_LENGTH (len); | |
105 | prog = scm_c_make_program (ip, len, program); | |
206a0622 | 106 | ip += len; |
17e90c5e | 107 | |
206a0622 KN |
108 | /* init object table */ |
109 | x = *sp; | |
110 | if (SCM_VECTORP (x)) | |
111 | { | |
112 | SCM_PROGRAM_OBJS (prog) = x; | |
113 | DROP (); | |
114 | x = *sp; | |
115 | } | |
116 | ||
117 | /* init parameters */ | |
17e90c5e KN |
118 | if (SCM_INUMP (x)) |
119 | { | |
120 | int i = SCM_INUM (x); | |
3d5ee0cd KN |
121 | if (-128 <= i && i <= 127) |
122 | { | |
123 | /* 8-bit representation */ | |
124 | SCM_PROGRAM_NARGS (prog) = (i >> 6) & 0x03; /* 7-6 bits */ | |
125 | SCM_PROGRAM_NREST (prog) = (i >> 5) & 0x01; /* 5 bit */ | |
126 | SCM_PROGRAM_NLOCS (prog) = (i >> 2) & 0x07; /* 4-2 bits */ | |
127 | SCM_PROGRAM_NEXTS (prog) = i & 0x03; /* 1-0 bits */ | |
128 | } | |
129 | else | |
130 | { | |
131 | /* 16-bit representation */ | |
132 | SCM_PROGRAM_NARGS (prog) = (i >> 12) & 0x07; /* 15-12 bits */ | |
133 | SCM_PROGRAM_NREST (prog) = (i >> 11) & 0x01; /* 11 bit */ | |
134 | SCM_PROGRAM_NLOCS (prog) = (i >> 4) & 0x7f; /* 10-4 bits */ | |
135 | SCM_PROGRAM_NEXTS (prog) = i & 0x07; /* 3-0 bits */ | |
136 | } | |
17e90c5e KN |
137 | } |
138 | else | |
139 | { | |
3d5ee0cd KN |
140 | /* Other cases */ |
141 | SCM_PROGRAM_NARGS (prog) = SCM_INUM (sp[4]); | |
142 | SCM_PROGRAM_NREST (prog) = SCM_INUM (sp[3]); | |
143 | SCM_PROGRAM_NLOCS (prog) = SCM_INUM (sp[2]); | |
144 | SCM_PROGRAM_NEXTS (prog) = SCM_INUM (sp[1]); | |
145 | sp += 4; | |
17e90c5e KN |
146 | } |
147 | ||
17e90c5e KN |
148 | *sp = prog; |
149 | NEXT; | |
150 | } | |
151 | ||
46cd9a34 | 152 | VM_DEFINE_INSTRUCTION (link, "link", 0, 2, 1) |
17e90c5e KN |
153 | { |
154 | sp[1] = scm_c_env_vcell (sp[1], sp[0], 1); | |
155 | DROP (); | |
156 | NEXT; | |
157 | } | |
158 | ||
46cd9a34 | 159 | VM_DEFINE_INSTRUCTION (link_current_module, "link/current-module", 0, 1, 1) |
fdcedea6 KN |
160 | { |
161 | SCM mod = scm_current_module (); | |
162 | SCM var = scm_eval_closure_lookup (scm_standard_eval_closure (mod), | |
163 | *sp, SCM_BOOL_F); | |
164 | if (SCM_FALSEP (var)) | |
165 | /* Create a new variable if not defined yet */ | |
166 | var = scm_eval_closure_lookup (scm_standard_eval_closure (mod), | |
167 | *sp, SCM_BOOL_T); | |
168 | *sp = SCM_VARVCELL (var); | |
169 | NEXT; | |
170 | } | |
171 | ||
17e90c5e KN |
172 | /* |
173 | Local Variables: | |
174 | c-file-style: "gnu" | |
175 | End: | |
176 | */ |