/[gxemul]/upstream/0.4.1/src/cpus/generate_mips_loadstore.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Contents of /upstream/0.4.1/src/cpus/generate_mips_loadstore.c

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Revision 29 - (show annotations)
Mon Oct 8 16:20:32 2007 UTC (16 years, 7 months ago) by dpavlin
File MIME type: text/plain
File size: 5408 byte(s)
0.4.1
1 /*
2 * Copyright (C) 2006 Anders Gavare. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 *
28 * $Id: generate_mips_loadstore.c,v 1.4 2006/04/16 17:45:39 debug Exp $
29 */
30
31 #include <stdio.h>
32 #include <string.h>
33
34
35 void print_function_name(int store, int size, int signedness, int endianness)
36 {
37 if (store)
38 printf("s");
39 else {
40 printf("l");
41 if (!signedness)
42 printf("u");
43 }
44 printf("%i", 1 << size);
45
46 if (endianness >= 0) {
47 /* Special case so that Byte loads/stores are only
48 included ones (for little endian): */
49 if (size == 0 && endianness)
50 printf("_le");
51 else
52 printf(endianness? "_be" : "_le");
53 }
54 }
55
56
57 void loadstore(int mode32, int store, int size, int signedness, int endianness)
58 {
59 if (store && signedness)
60 return;
61
62 if (size == 0 && endianness)
63 return;
64
65 printf("#if%sdef MODE32\n", mode32? "" : "n");
66
67 if (store)
68 printf("#define LS_STORE\n");
69 else
70 printf("#define LS_LOAD\n");
71
72 printf("#define LS_N mips%s_instr_", mode32? "32" : "");
73 print_function_name(store, size, signedness, endianness);
74 printf("\n");
75
76 printf("#define LS_GENERIC_N mips%s_generic_", mode32? "32" : "");
77 print_function_name(store, size, signedness, -1);
78 printf("\n");
79
80 printf("#define LS_%i\n", 1 << size);
81 printf("#define LS_SIZE %i\n", 1 << size);
82
83 if (signedness && !store)
84 printf("#define LS_SIGNED\n");
85
86 if (endianness)
87 printf("#define LS_BE\n");
88 else
89 printf("#define LS_LE\n");
90
91 if (endianness == 0)
92 printf("#define LS_INCLUDE_GENERIC\n");
93
94 printf("#include \"cpu_mips_instr_loadstore.c\"\n");
95
96 if (endianness == 0)
97 printf("#undef LS_INCLUDE_GENERIC\n");
98
99 if (endianness)
100 printf("#undef LS_BE\n");
101 else
102 printf("#undef LS_LE\n");
103
104 if (signedness && !store)
105 printf("#undef LS_SIGNED\n");
106
107 printf("#undef LS_SIZE\n");
108 printf("#undef LS_%i\n", 1 << size);
109
110 printf("#undef LS_GENERIC_N\n");
111 printf("#undef LS_N\n");
112
113 if (store)
114 printf("#undef LS_STORE\n");
115 else
116 printf("#undef LS_LOAD\n");
117
118 printf("#endif\n");
119 }
120
121
122 int main(int argc, char *argv[])
123 {
124 int store, mode32, size, signedness, endianness;
125
126 printf("\n/* AUTOMATICALLY GENERATED! Do not edit. */\n\n");
127
128 for (mode32=0; mode32<=1; mode32++)
129 for (endianness=0; endianness<=1; endianness++)
130 for (store=0; store<=1; store++)
131 for (size=0; size<=3; size++)
132 for (signedness=0; signedness<=1; signedness++)
133 loadstore(mode32, store, size, signedness,
134 endianness);
135
136 /* Array of pointers to fast load/store functions: */
137 for (mode32=0; mode32<=1; mode32++) {
138 printf("#if%sdef MODE32\n", mode32? "" : "n");
139 printf("\n\nvoid (*mips%s_loadstore[32])(struct cpu *, struct "
140 "mips_instr_call *) = {\n", mode32? "32" : "");
141 for (endianness=0; endianness<=1; endianness++)
142 for (store=0; store<=1; store++)
143 for (size=0; size<=3; size++)
144 for (signedness=0; signedness<=1; signedness++) {
145 if (store || size || signedness || endianness)
146 printf(",\n");
147
148 if (store && signedness) {
149 printf("\tmips%s_instr_invalid",
150 mode32? "32" : "");
151 continue;
152 }
153
154 printf("\tmips%s_instr_", mode32? "32" : "");
155 print_function_name(store, size, signedness,
156 endianness);
157 }
158 printf(" };\n");
159 printf("#endif\n");
160 }
161
162 /* Array of pointers to the generic functions: */
163 for (mode32=0; mode32<=1; mode32++) {
164 printf("#if%sdef MODE32\n", mode32? "" : "n");
165 printf("\n\nvoid (*mips%s_loadstore_generic[16])("
166 "struct cpu *, struct mips_instr_call *) = {\n",
167 mode32? "32" : "");
168 for (store=0; store<=1; store++)
169 for (size=0; size<=3; size++)
170 for (signedness=0; signedness<=1; signedness++) {
171 if (store || size || signedness)
172 printf(",\n");
173
174 if (store && signedness) {
175 printf("\tmips%s_instr_invalid",
176 mode32? "32" : "");
177 continue;
178 }
179
180 printf("\tmips%s_generic_", mode32? "32" : "");
181 print_function_name(store, size, signedness,
182 -1);
183 }
184 printf(" };\n");
185 printf("#endif\n");
186 }
187
188 return 0;
189 }
190

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