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8f5cfc81 | 1 | /* Copyright (C) 2001 Free Software Foundation, Inc. |
17e90c5e KN |
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 | ||
3616e9e9 | 44 | VM_DEFINE_LOADER (load_integer, "load-integer") |
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 | ||
3616e9e9 | 61 | VM_DEFINE_LOADER (load_number, "load-number") |
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62 | { |
63 | size_t len; | |
f9e8c09d | 64 | |
17e90c5e | 65 | FETCH_LENGTH (len); |
f9e8c09d LC |
66 | PUSH (scm_string_to_number (scm_from_locale_stringn (ip, len), |
67 | SCM_UNSPECIFIED /* radix = 10 */)); | |
68 | /* Was: scm_istring2number (ip, len, 10)); */ | |
17e90c5e KN |
69 | ip += len; |
70 | NEXT; | |
71 | } | |
72 | ||
3616e9e9 | 73 | VM_DEFINE_LOADER (load_string, "load-string") |
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74 | { |
75 | size_t len; | |
76 | FETCH_LENGTH (len); | |
f9e8c09d LC |
77 | PUSH (scm_from_locale_stringn (ip, len)); |
78 | /* Was: scm_makfromstr (ip, len, 0) */ | |
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79 | ip += len; |
80 | NEXT; | |
81 | } | |
82 | ||
3616e9e9 | 83 | VM_DEFINE_LOADER (load_symbol, "load-symbol") |
a80be762 KN |
84 | { |
85 | size_t len; | |
86 | FETCH_LENGTH (len); | |
87 | PUSH (scm_mem2symbol (ip, len)); | |
88 | ip += len; | |
89 | NEXT; | |
90 | } | |
91 | ||
3616e9e9 | 92 | VM_DEFINE_LOADER (load_keyword, "load-keyword") |
17e90c5e KN |
93 | { |
94 | SCM sym; | |
95 | size_t len; | |
96 | FETCH_LENGTH (len); | |
97 | sym = scm_mem2symbol (ip, len); | |
98 | PUSH (scm_make_keyword_from_dash_symbol (sym)); | |
99 | ip += len; | |
100 | NEXT; | |
101 | } | |
102 | ||
3616e9e9 | 103 | VM_DEFINE_LOADER (load_module, "load-module") |
17e90c5e KN |
104 | { |
105 | size_t len; | |
106 | FETCH_LENGTH (len); | |
107 | PUSH (scm_c_lookup_env (scm_mem2symbol (ip, len))); | |
108 | ip += len; | |
109 | NEXT; | |
110 | } | |
111 | ||
3616e9e9 | 112 | VM_DEFINE_LOADER (load_program, "load-program") |
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113 | { |
114 | size_t len; | |
115 | SCM prog, x; | |
ac99cb0c | 116 | struct scm_program *p; |
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117 | |
118 | FETCH_LENGTH (len); | |
119 | prog = scm_c_make_program (ip, len, program); | |
ac99cb0c | 120 | p = SCM_PROGRAM_DATA (prog); |
206a0622 | 121 | ip += len; |
17e90c5e | 122 | |
ac99cb0c KN |
123 | POP (x); |
124 | ||
125 | /* init meta data */ | |
126 | if (SCM_CONSP (x)) | |
127 | { | |
128 | p->meta = x; | |
129 | POP (x); | |
130 | } | |
131 | ||
206a0622 | 132 | /* init object table */ |
206a0622 KN |
133 | if (SCM_VECTORP (x)) |
134 | { | |
ac99cb0c KN |
135 | p->objs = x; |
136 | POP (x); | |
206a0622 KN |
137 | } |
138 | ||
139 | /* init parameters */ | |
4bfb26f5 | 140 | /* NOTE: format defined in system/vm/assemble.scm */ |
d8eeb67c | 141 | if (scm_is_integer (x)) |
17e90c5e | 142 | { |
d8eeb67c | 143 | int i = scm_to_int (x); |
3d5ee0cd KN |
144 | if (-128 <= i && i <= 127) |
145 | { | |
146 | /* 8-bit representation */ | |
ac99cb0c KN |
147 | p->nargs = (i >> 6) & 0x03; /* 7-6 bits */ |
148 | p->nrest = (i >> 5) & 0x01; /* 5 bit */ | |
149 | p->nlocs = (i >> 2) & 0x07; /* 4-2 bits */ | |
150 | p->nexts = i & 0x03; /* 1-0 bits */ | |
3d5ee0cd KN |
151 | } |
152 | else | |
153 | { | |
154 | /* 16-bit representation */ | |
ac99cb0c KN |
155 | p->nargs = (i >> 12) & 0x07; /* 15-12 bits */ |
156 | p->nrest = (i >> 11) & 0x01; /* 11 bit */ | |
157 | p->nlocs = (i >> 4) & 0x7f; /* 10-04 bits */ | |
158 | p->nexts = i & 0x0f; /* 03-00 bits */ | |
3d5ee0cd | 159 | } |
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160 | } |
161 | else | |
162 | { | |
3d5ee0cd | 163 | /* Other cases */ |
3616e9e9 | 164 | sp -= 4; |
d8eeb67c LC |
165 | p->nargs = scm_to_int (sp[0]); |
166 | p->nrest = scm_to_int (sp[1]); | |
167 | p->nlocs = scm_to_int (sp[2]); | |
168 | p->nexts = scm_to_int (sp[3]); | |
17e90c5e KN |
169 | } |
170 | ||
ac99cb0c | 171 | PUSH (prog); |
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172 | NEXT; |
173 | } | |
174 | ||
cb4cca12 | 175 | VM_DEFINE_LOADER (link, "link") |
17e90c5e | 176 | { |
cb4cca12 KN |
177 | SCM sym; |
178 | size_t len; | |
179 | ||
180 | FETCH_LENGTH (len); | |
181 | sym = scm_mem2symbol (ip, len); | |
182 | ip += len; | |
183 | ||
41f248a8 | 184 | #if 0 |
cb4cca12 | 185 | *sp = scm_c_env_vcell (*sp, sym, 1); |
41f248a8 | 186 | #endif |
cb4cca12 KN |
187 | { |
188 | /* Temporary hack that supports the current module system */ | |
189 | SCM mod = scm_current_module (); | |
190 | SCM var = scm_eval_closure_lookup (scm_standard_eval_closure (mod), | |
191 | sym, SCM_BOOL_F); | |
192 | if (SCM_FALSEP (var)) | |
193 | /* Create a new variable if not defined yet */ | |
194 | var = scm_eval_closure_lookup (scm_standard_eval_closure (mod), | |
195 | sym, SCM_BOOL_T); | |
f9e8c09d LC |
196 | PUSH (scm_variable_ref (var)); |
197 | /* Was: SCM_VARVCELL (var)); */ | |
cb4cca12 KN |
198 | NEXT; |
199 | } | |
fdcedea6 KN |
200 | } |
201 | ||
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202 | /* |
203 | Local Variables: | |
204 | c-file-style: "gnu" | |
205 | End: | |
206 | */ |