/[pcre]/code/trunk/sljit/sljitNativeMIPS_32.c
ViewVC logotype

Contents of /code/trunk/sljit/sljitNativeMIPS_32.c

Parent Directory Parent Directory | Revision Log Revision Log


Revision 1499 - (show annotations)
Mon Aug 11 06:42:28 2014 UTC (10 months, 3 weeks ago) by zherczeg
File MIME type: text/plain
File size: 15393 byte(s)
Error occurred while calculating annotation data.
JIT compiler update.
1 /*
2 * Stack-less Just-In-Time compiler
3 *
4 * Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without modification, are
7 * permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice, this list of
10 * conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
13 * of conditions and the following disclaimer in the documentation and/or other materials
14 * provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
21 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 /* mips 32-bit arch dependent functions. */
28
29 static sljit_si load_immediate(struct sljit_compiler *compiler, sljit_si dst_ar, sljit_sw imm)
30 {
31 if (!(imm & ~0xffff))
32 return push_inst(compiler, ORI | SA(0) | TA(dst_ar) | IMM(imm), dst_ar);
33
34 if (imm < 0 && imm >= SIMM_MIN)
35 return push_inst(compiler, ADDIU | SA(0) | TA(dst_ar) | IMM(imm), dst_ar);
36
37 FAIL_IF(push_inst(compiler, LUI | TA(dst_ar) | IMM(imm >> 16), dst_ar));
38 return (imm & 0xffff) ? push_inst(compiler, ORI | SA(dst_ar) | TA(dst_ar) | IMM(imm), dst_ar) : SLJIT_SUCCESS;
39 }
40
41 #define EMIT_LOGICAL(op_imm, op_norm) \
42 if (flags & SRC2_IMM) { \
43 if (op & SLJIT_SET_E) \
44 FAIL_IF(push_inst(compiler, op_imm | S(src1) | TA(EQUAL_FLAG) | IMM(src2), EQUAL_FLAG)); \
45 if (CHECK_FLAGS(SLJIT_SET_E)) \
46 FAIL_IF(push_inst(compiler, op_imm | S(src1) | T(dst) | IMM(src2), DR(dst))); \
47 } \
48 else { \
49 if (op & SLJIT_SET_E) \
50 FAIL_IF(push_inst(compiler, op_norm | S(src1) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG)); \
51 if (CHECK_FLAGS(SLJIT_SET_E)) \
52 FAIL_IF(push_inst(compiler, op_norm | S(src1) | T(src2) | D(dst), DR(dst))); \
53 }
54
55 #define EMIT_SHIFT(op_imm, op_v) \
56 if (flags & SRC2_IMM) { \
57 if (op & SLJIT_SET_E) \
58 FAIL_IF(push_inst(compiler, op_imm | T(src1) | DA(EQUAL_FLAG) | SH_IMM(src2), EQUAL_FLAG)); \
59 if (CHECK_FLAGS(SLJIT_SET_E)) \
60 FAIL_IF(push_inst(compiler, op_imm | T(src1) | D(dst) | SH_IMM(src2), DR(dst))); \
61 } \
62 else { \
63 if (op & SLJIT_SET_E) \
64 FAIL_IF(push_inst(compiler, op_v | S(src2) | T(src1) | DA(EQUAL_FLAG), EQUAL_FLAG)); \
65 if (CHECK_FLAGS(SLJIT_SET_E)) \
66 FAIL_IF(push_inst(compiler, op_v | S(src2) | T(src1) | D(dst), DR(dst))); \
67 }
68
69 static SLJIT_INLINE sljit_si emit_single_op(struct sljit_compiler *compiler, sljit_si op, sljit_si flags,
70 sljit_si dst, sljit_si src1, sljit_sw src2)
71 {
72 switch (GET_OPCODE(op)) {
73 case SLJIT_MOV:
74 case SLJIT_MOV_UI:
75 case SLJIT_MOV_SI:
76 case SLJIT_MOV_P:
77 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM));
78 if (dst != src2)
79 return push_inst(compiler, ADDU | S(src2) | TA(0) | D(dst), DR(dst));
80 return SLJIT_SUCCESS;
81
82 case SLJIT_MOV_UB:
83 case SLJIT_MOV_SB:
84 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM));
85 if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
86 if (op == SLJIT_MOV_SB) {
87 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1)
88 return push_inst(compiler, SEB | T(src2) | D(dst), DR(dst));
89 #else
90 FAIL_IF(push_inst(compiler, SLL | T(src2) | D(dst) | SH_IMM(24), DR(dst)));
91 return push_inst(compiler, SRA | T(dst) | D(dst) | SH_IMM(24), DR(dst));
92 #endif
93 }
94 return push_inst(compiler, ANDI | S(src2) | T(dst) | IMM(0xff), DR(dst));
95 }
96 else if (dst != src2)
97 SLJIT_ASSERT_STOP();
98 return SLJIT_SUCCESS;
99
100 case SLJIT_MOV_UH:
101 case SLJIT_MOV_SH:
102 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM));
103 if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
104 if (op == SLJIT_MOV_SH) {
105 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1)
106 return push_inst(compiler, SEH | T(src2) | D(dst), DR(dst));
107 #else
108 FAIL_IF(push_inst(compiler, SLL | T(src2) | D(dst) | SH_IMM(16), DR(dst)));
109 return push_inst(compiler, SRA | T(dst) | D(dst) | SH_IMM(16), DR(dst));
110 #endif
111 }
112 return push_inst(compiler, ANDI | S(src2) | T(dst) | IMM(0xffff), DR(dst));
113 }
114 else if (dst != src2)
115 SLJIT_ASSERT_STOP();
116 return SLJIT_SUCCESS;
117
118 case SLJIT_NOT:
119 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM));
120 if (op & SLJIT_SET_E)
121 FAIL_IF(push_inst(compiler, NOR | S(src2) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG));
122 if (CHECK_FLAGS(SLJIT_SET_E))
123 FAIL_IF(push_inst(compiler, NOR | S(src2) | T(src2) | D(dst), DR(dst)));
124 return SLJIT_SUCCESS;
125
126 case SLJIT_CLZ:
127 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM));
128 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1)
129 if (op & SLJIT_SET_E)
130 FAIL_IF(push_inst(compiler, CLZ | S(src2) | TA(EQUAL_FLAG) | DA(EQUAL_FLAG), EQUAL_FLAG));
131 if (CHECK_FLAGS(SLJIT_SET_E))
132 FAIL_IF(push_inst(compiler, CLZ | S(src2) | T(dst) | D(dst), DR(dst)));
133 #else
134 if (SLJIT_UNLIKELY(flags & UNUSED_DEST)) {
135 FAIL_IF(push_inst(compiler, SRL | T(src2) | DA(EQUAL_FLAG) | SH_IMM(31), EQUAL_FLAG));
136 return push_inst(compiler, XORI | SA(EQUAL_FLAG) | TA(EQUAL_FLAG) | IMM(1), EQUAL_FLAG);
137 }
138 /* Nearly all instructions are unmovable in the following sequence. */
139 FAIL_IF(push_inst(compiler, ADDU | S(src2) | TA(0) | D(TMP_REG1), DR(TMP_REG1)));
140 /* Check zero. */
141 FAIL_IF(push_inst(compiler, BEQ | S(TMP_REG1) | TA(0) | IMM(5), UNMOVABLE_INS));
142 FAIL_IF(push_inst(compiler, ORI | SA(0) | T(dst) | IMM(32), UNMOVABLE_INS));
143 FAIL_IF(push_inst(compiler, ADDIU | SA(0) | T(dst) | IMM(-1), DR(dst)));
144 /* Loop for searching the highest bit. */
145 FAIL_IF(push_inst(compiler, ADDIU | S(dst) | T(dst) | IMM(1), DR(dst)));
146 FAIL_IF(push_inst(compiler, BGEZ | S(TMP_REG1) | IMM(-2), UNMOVABLE_INS));
147 FAIL_IF(push_inst(compiler, SLL | T(TMP_REG1) | D(TMP_REG1) | SH_IMM(1), UNMOVABLE_INS));
148 if (op & SLJIT_SET_E)
149 return push_inst(compiler, ADDU | S(dst) | TA(0) | DA(EQUAL_FLAG), EQUAL_FLAG);
150 #endif
151 return SLJIT_SUCCESS;
152
153 case SLJIT_ADD:
154 if (flags & SRC2_IMM) {
155 if (op & SLJIT_SET_O) {
156 if (src2 >= 0)
157 FAIL_IF(push_inst(compiler, OR | S(src1) | T(src1) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
158 else
159 FAIL_IF(push_inst(compiler, NOR | S(src1) | T(src1) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
160 }
161 if (op & SLJIT_SET_E)
162 FAIL_IF(push_inst(compiler, ADDIU | S(src1) | TA(EQUAL_FLAG) | IMM(src2), EQUAL_FLAG));
163 if (op & (SLJIT_SET_C | SLJIT_SET_O)) {
164 if (src2 >= 0)
165 FAIL_IF(push_inst(compiler, ORI | S(src1) | TA(ULESS_FLAG) | IMM(src2), ULESS_FLAG));
166 else {
167 FAIL_IF(push_inst(compiler, ADDIU | SA(0) | TA(ULESS_FLAG) | IMM(src2), ULESS_FLAG));
168 FAIL_IF(push_inst(compiler, OR | S(src1) | TA(ULESS_FLAG) | DA(ULESS_FLAG), ULESS_FLAG));
169 }
170 }
171 /* dst may be the same as src1 or src2. */
172 if (CHECK_FLAGS(SLJIT_SET_E))
173 FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(src2), DR(dst)));
174 }
175 else {
176 if (op & SLJIT_SET_O)
177 FAIL_IF(push_inst(compiler, XOR | S(src1) | T(src2) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
178 if (op & SLJIT_SET_E)
179 FAIL_IF(push_inst(compiler, ADDU | S(src1) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG));
180 if (op & (SLJIT_SET_C | SLJIT_SET_O))
181 FAIL_IF(push_inst(compiler, OR | S(src1) | T(src2) | DA(ULESS_FLAG), ULESS_FLAG));
182 /* dst may be the same as src1 or src2. */
183 if (CHECK_FLAGS(SLJIT_SET_E))
184 FAIL_IF(push_inst(compiler, ADDU | S(src1) | T(src2) | D(dst), DR(dst)));
185 }
186
187 /* a + b >= a | b (otherwise, the carry should be set to 1). */
188 if (op & (SLJIT_SET_C | SLJIT_SET_O))
189 FAIL_IF(push_inst(compiler, SLTU | S(dst) | TA(ULESS_FLAG) | DA(ULESS_FLAG), ULESS_FLAG));
190 if (!(op & SLJIT_SET_O))
191 return SLJIT_SUCCESS;
192 FAIL_IF(push_inst(compiler, SLL | TA(ULESS_FLAG) | D(TMP_REG1) | SH_IMM(31), DR(TMP_REG1)));
193 FAIL_IF(push_inst(compiler, XOR | S(TMP_REG1) | TA(OVERFLOW_FLAG) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
194 FAIL_IF(push_inst(compiler, XOR | S(dst) | TA(OVERFLOW_FLAG) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
195 return push_inst(compiler, SLL | TA(OVERFLOW_FLAG) | DA(OVERFLOW_FLAG) | SH_IMM(31), OVERFLOW_FLAG);
196
197 case SLJIT_ADDC:
198 if (flags & SRC2_IMM) {
199 if (op & SLJIT_SET_C) {
200 if (src2 >= 0)
201 FAIL_IF(push_inst(compiler, ORI | S(src1) | TA(OVERFLOW_FLAG) | IMM(src2), OVERFLOW_FLAG));
202 else {
203 FAIL_IF(push_inst(compiler, ADDIU | SA(0) | TA(OVERFLOW_FLAG) | IMM(src2), OVERFLOW_FLAG));
204 FAIL_IF(push_inst(compiler, OR | S(src1) | TA(OVERFLOW_FLAG) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
205 }
206 }
207 FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(src2), DR(dst)));
208 } else {
209 if (op & SLJIT_SET_C)
210 FAIL_IF(push_inst(compiler, OR | S(src1) | T(src2) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
211 /* dst may be the same as src1 or src2. */
212 FAIL_IF(push_inst(compiler, ADDU | S(src1) | T(src2) | D(dst), DR(dst)));
213 }
214 if (op & SLJIT_SET_C)
215 FAIL_IF(push_inst(compiler, SLTU | S(dst) | TA(OVERFLOW_FLAG) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
216
217 FAIL_IF(push_inst(compiler, ADDU | S(dst) | TA(ULESS_FLAG) | D(dst), DR(dst)));
218 if (!(op & SLJIT_SET_C))
219 return SLJIT_SUCCESS;
220
221 /* Set ULESS_FLAG (dst == 0) && (ULESS_FLAG == 1). */
222 FAIL_IF(push_inst(compiler, SLTU | S(dst) | TA(ULESS_FLAG) | DA(ULESS_FLAG), ULESS_FLAG));
223 /* Set carry flag. */
224 return push_inst(compiler, OR | SA(ULESS_FLAG) | TA(OVERFLOW_FLAG) | DA(ULESS_FLAG), ULESS_FLAG);
225
226 case SLJIT_SUB:
227 if ((flags & SRC2_IMM) && ((op & (SLJIT_SET_U | SLJIT_SET_S)) || src2 == SIMM_MIN)) {
228 FAIL_IF(push_inst(compiler, ADDIU | SA(0) | T(TMP_REG2) | IMM(src2), DR(TMP_REG2)));
229 src2 = TMP_REG2;
230 flags &= ~SRC2_IMM;
231 }
232
233 if (flags & SRC2_IMM) {
234 if (op & SLJIT_SET_O) {
235 if (src2 >= 0)
236 FAIL_IF(push_inst(compiler, OR | S(src1) | T(src1) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
237 else
238 FAIL_IF(push_inst(compiler, NOR | S(src1) | T(src1) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
239 }
240 if (op & SLJIT_SET_E)
241 FAIL_IF(push_inst(compiler, ADDIU | S(src1) | TA(EQUAL_FLAG) | IMM(-src2), EQUAL_FLAG));
242 if (op & (SLJIT_SET_C | SLJIT_SET_O))
243 FAIL_IF(push_inst(compiler, SLTIU | S(src1) | TA(ULESS_FLAG) | IMM(src2), ULESS_FLAG));
244 /* dst may be the same as src1 or src2. */
245 if (CHECK_FLAGS(SLJIT_SET_E))
246 FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(-src2), DR(dst)));
247 }
248 else {
249 if (op & SLJIT_SET_O)
250 FAIL_IF(push_inst(compiler, XOR | S(src1) | T(src2) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
251 if (op & SLJIT_SET_E)
252 FAIL_IF(push_inst(compiler, SUBU | S(src1) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG));
253 if (op & (SLJIT_SET_U | SLJIT_SET_C | SLJIT_SET_O))
254 FAIL_IF(push_inst(compiler, SLTU | S(src1) | T(src2) | DA(ULESS_FLAG), ULESS_FLAG));
255 if (op & SLJIT_SET_U)
256 FAIL_IF(push_inst(compiler, SLTU | S(src2) | T(src1) | DA(UGREATER_FLAG), UGREATER_FLAG));
257 if (op & SLJIT_SET_S) {
258 FAIL_IF(push_inst(compiler, SLT | S(src1) | T(src2) | DA(LESS_FLAG), LESS_FLAG));
259 FAIL_IF(push_inst(compiler, SLT | S(src2) | T(src1) | DA(GREATER_FLAG), GREATER_FLAG));
260 }
261 /* dst may be the same as src1 or src2. */
262 if (CHECK_FLAGS(SLJIT_SET_E | SLJIT_SET_U | SLJIT_SET_S | SLJIT_SET_C))
263 FAIL_IF(push_inst(compiler, SUBU | S(src1) | T(src2) | D(dst), DR(dst)));
264 }
265
266 if (!(op & SLJIT_SET_O))
267 return SLJIT_SUCCESS;
268 FAIL_IF(push_inst(compiler, SLL | TA(ULESS_FLAG) | D(TMP_REG1) | SH_IMM(31), DR(TMP_REG1)));
269 FAIL_IF(push_inst(compiler, XOR | S(TMP_REG1) | TA(OVERFLOW_FLAG) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
270 FAIL_IF(push_inst(compiler, XOR | S(dst) | TA(OVERFLOW_FLAG) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
271 return push_inst(compiler, SRL | TA(OVERFLOW_FLAG) | DA(OVERFLOW_FLAG) | SH_IMM(31), OVERFLOW_FLAG);
272
273 case SLJIT_SUBC:
274 if ((flags & SRC2_IMM) && src2 == SIMM_MIN) {
275 FAIL_IF(push_inst(compiler, ADDIU | SA(0) | T(TMP_REG2) | IMM(src2), DR(TMP_REG2)));
276 src2 = TMP_REG2;
277 flags &= ~SRC2_IMM;
278 }
279
280 if (flags & SRC2_IMM) {
281 if (op & SLJIT_SET_C)
282 FAIL_IF(push_inst(compiler, SLTIU | S(src1) | TA(OVERFLOW_FLAG) | IMM(src2), OVERFLOW_FLAG));
283 /* dst may be the same as src1 or src2. */
284 FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(-src2), DR(dst)));
285 }
286 else {
287 if (op & SLJIT_SET_C)
288 FAIL_IF(push_inst(compiler, SLTU | S(src1) | T(src2) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
289 /* dst may be the same as src1 or src2. */
290 FAIL_IF(push_inst(compiler, SUBU | S(src1) | T(src2) | D(dst), DR(dst)));
291 }
292
293 if (op & SLJIT_SET_C)
294 FAIL_IF(push_inst(compiler, SLTU | S(dst) | TA(ULESS_FLAG) | DA(LESS_FLAG), LESS_FLAG));
295
296 FAIL_IF(push_inst(compiler, SUBU | S(dst) | TA(ULESS_FLAG) | D(dst), DR(dst)));
297 return (op & SLJIT_SET_C) ? push_inst(compiler, OR | SA(OVERFLOW_FLAG) | TA(LESS_FLAG) | DA(ULESS_FLAG), ULESS_FLAG) : SLJIT_SUCCESS;
298
299 case SLJIT_MUL:
300 SLJIT_ASSERT(!(flags & SRC2_IMM));
301 if (!(op & SLJIT_SET_O)) {
302 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1)
303 return push_inst(compiler, MUL | S(src1) | T(src2) | D(dst), DR(dst));
304 #else
305 FAIL_IF(push_inst(compiler, MULT | S(src1) | T(src2), MOVABLE_INS));
306 return push_inst(compiler, MFLO | D(dst), DR(dst));
307 #endif
308 }
309 FAIL_IF(push_inst(compiler, MULT | S(src1) | T(src2), MOVABLE_INS));
310 FAIL_IF(push_inst(compiler, MFHI | DA(ULESS_FLAG), ULESS_FLAG));
311 FAIL_IF(push_inst(compiler, MFLO | D(dst), DR(dst)));
312 FAIL_IF(push_inst(compiler, SRA | T(dst) | DA(UGREATER_FLAG) | SH_IMM(31), UGREATER_FLAG));
313 return push_inst(compiler, SUBU | SA(ULESS_FLAG) | TA(UGREATER_FLAG) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG);
314
315 case SLJIT_AND:
316 EMIT_LOGICAL(ANDI, AND);
317 return SLJIT_SUCCESS;
318
319 case SLJIT_OR:
320 EMIT_LOGICAL(ORI, OR);
321 return SLJIT_SUCCESS;
322
323 case SLJIT_XOR:
324 EMIT_LOGICAL(XORI, XOR);
325 return SLJIT_SUCCESS;
326
327 case SLJIT_SHL:
328 EMIT_SHIFT(SLL, SLLV);
329 return SLJIT_SUCCESS;
330
331 case SLJIT_LSHR:
332 EMIT_SHIFT(SRL, SRLV);
333 return SLJIT_SUCCESS;
334
335 case SLJIT_ASHR:
336 EMIT_SHIFT(SRA, SRAV);
337 return SLJIT_SUCCESS;
338 }
339
340 SLJIT_ASSERT_STOP();
341 return SLJIT_SUCCESS;
342 }
343
344 static SLJIT_INLINE sljit_si emit_const(struct sljit_compiler *compiler, sljit_si dst, sljit_sw init_value)
345 {
346 FAIL_IF(push_inst(compiler, LUI | T(dst) | IMM(init_value >> 16), DR(dst)));
347 return push_inst(compiler, ORI | S(dst) | T(dst) | IMM(init_value), DR(dst));
348 }
349
350 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr)
351 {
352 sljit_ins *inst = (sljit_ins*)addr;
353
354 inst[0] = (inst[0] & 0xffff0000) | ((new_addr >> 16) & 0xffff);
355 inst[1] = (inst[1] & 0xffff0000) | (new_addr & 0xffff);
356 SLJIT_CACHE_FLUSH(inst, inst + 2);
357 }
358
359 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant)
360 {
361 sljit_ins *inst = (sljit_ins*)addr;
362
363 inst[0] = (inst[0] & 0xffff0000) | ((new_constant >> 16) & 0xffff);
364 inst[1] = (inst[1] & 0xffff0000) | (new_constant & 0xffff);
365 SLJIT_CACHE_FLUSH(inst, inst + 2);
366 }

  ViewVC Help
Powered by ViewVC 1.1.5