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/*
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 *  i386 micro operations
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 * 
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 *  Copyright (c) 2003 Fabrice Bellard
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 */
20

    
21
/* XXX: must use this define because the soft mmu macros have huge
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   register constraints so they cannot be used in any C code */
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#define ASM_SOFTMMU
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#include "exec.h"
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/* n must be a constant to be efficient */
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static inline int lshift(int x, int n)
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{
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    if (n >= 0)
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        return x << n;
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    else
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        return x >> (-n);
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}
34

    
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/* we define the various pieces of code used by the JIT */
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#define REG EAX
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#define REGNAME _EAX
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#include "opreg_template.h"
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#undef REG
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#undef REGNAME
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#define REG ECX
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#define REGNAME _ECX
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#include "opreg_template.h"
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#undef REG
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#undef REGNAME
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#define REG EDX
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#define REGNAME _EDX
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#include "opreg_template.h"
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#undef REG
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#undef REGNAME
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#define REG EBX
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#define REGNAME _EBX
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#include "opreg_template.h"
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#undef REG
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#undef REGNAME
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#define REG ESP
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#define REGNAME _ESP
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#include "opreg_template.h"
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#undef REG
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#undef REGNAME
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#define REG EBP
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#define REGNAME _EBP
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#include "opreg_template.h"
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#undef REG
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#undef REGNAME
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#define REG ESI
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#define REGNAME _ESI
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#include "opreg_template.h"
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#undef REG
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#undef REGNAME
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#define REG EDI
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#define REGNAME _EDI
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#include "opreg_template.h"
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#undef REG
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#undef REGNAME
84

    
85
/* operations with flags */
86

    
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/* update flags with T0 and T1 (add/sub case) */
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void OPPROTO op_update2_cc(void)
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{
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    CC_SRC = T1;
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    CC_DST = T0;
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}
93

    
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/* update flags with T0 (logic operation case) */
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void OPPROTO op_update1_cc(void)
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{
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    CC_DST = T0;
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}
99

    
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void OPPROTO op_update_neg_cc(void)
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{
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    CC_SRC = -T0;
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    CC_DST = T0;
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}
105

    
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void OPPROTO op_cmpl_T0_T1_cc(void)
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{
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    CC_SRC = T1;
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    CC_DST = T0 - T1;
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}
111

    
112
void OPPROTO op_update_inc_cc(void)
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{
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    CC_SRC = cc_table[CC_OP].compute_c();
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    CC_DST = T0;
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}
117

    
118
void OPPROTO op_testl_T0_T1_cc(void)
119
{
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    CC_DST = T0 & T1;
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}
122

    
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/* operations without flags */
124

    
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void OPPROTO op_addl_T0_T1(void)
126
{
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    T0 += T1;
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}
129

    
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void OPPROTO op_orl_T0_T1(void)
131
{
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    T0 |= T1;
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}
134

    
135
void OPPROTO op_andl_T0_T1(void)
136
{
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    T0 &= T1;
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}
139

    
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void OPPROTO op_subl_T0_T1(void)
141
{
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    T0 -= T1;
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}
144

    
145
void OPPROTO op_xorl_T0_T1(void)
146
{
147
    T0 ^= T1;
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}
149

    
150
void OPPROTO op_negl_T0(void)
151
{
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    T0 = -T0;
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}
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155
void OPPROTO op_incl_T0(void)
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{
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    T0++;
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}
159

    
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void OPPROTO op_decl_T0(void)
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{
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    T0--;
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}
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void OPPROTO op_notl_T0(void)
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{
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    T0 = ~T0;
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}
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void OPPROTO op_bswapl_T0(void)
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{
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    T0 = bswap32(T0);
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}
174

    
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/* multiply/divide */
176

    
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/* XXX: add eflags optimizations */
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/* XXX: add non P4 style flags */
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void OPPROTO op_mulb_AL_T0(void)
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{
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    unsigned int res;
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    res = (uint8_t)EAX * (uint8_t)T0;
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    EAX = (EAX & 0xffff0000) | res;
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    CC_DST = res;
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    CC_SRC = (res & 0xff00);
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}
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189
void OPPROTO op_imulb_AL_T0(void)
190
{
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    int res;
192
    res = (int8_t)EAX * (int8_t)T0;
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    EAX = (EAX & 0xffff0000) | (res & 0xffff);
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    CC_DST = res;
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    CC_SRC = (res != (int8_t)res);
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}
197

    
198
void OPPROTO op_mulw_AX_T0(void)
199
{
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    unsigned int res;
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    res = (uint16_t)EAX * (uint16_t)T0;
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    EAX = (EAX & 0xffff0000) | (res & 0xffff);
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    EDX = (EDX & 0xffff0000) | ((res >> 16) & 0xffff);
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    CC_DST = res;
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    CC_SRC = res >> 16;
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}
207

    
208
void OPPROTO op_imulw_AX_T0(void)
209
{
210
    int res;
211
    res = (int16_t)EAX * (int16_t)T0;
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    EAX = (EAX & 0xffff0000) | (res & 0xffff);
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    EDX = (EDX & 0xffff0000) | ((res >> 16) & 0xffff);
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    CC_DST = res;
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    CC_SRC = (res != (int16_t)res);
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}
217

    
218
void OPPROTO op_mull_EAX_T0(void)
219
{
220
    uint64_t res;
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    res = (uint64_t)((uint32_t)EAX) * (uint64_t)((uint32_t)T0);
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    EAX = res;
223
    EDX = res >> 32;
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    CC_DST = res;
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    CC_SRC = res >> 32;
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}
227

    
228
void OPPROTO op_imull_EAX_T0(void)
229
{
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    int64_t res;
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    res = (int64_t)((int32_t)EAX) * (int64_t)((int32_t)T0);
232
    EAX = res;
233
    EDX = res >> 32;
234
    CC_DST = res;
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    CC_SRC = (res != (int32_t)res);
236
}
237

    
238
void OPPROTO op_imulw_T0_T1(void)
239
{
240
    int res;
241
    res = (int16_t)T0 * (int16_t)T1;
242
    T0 = res;
243
    CC_DST = res;
244
    CC_SRC = (res != (int16_t)res);
245
}
246

    
247
void OPPROTO op_imull_T0_T1(void)
248
{
249
    int64_t res;
250
    res = (int64_t)((int32_t)T0) * (int64_t)((int32_t)T1);
251
    T0 = res;
252
    CC_DST = res;
253
    CC_SRC = (res != (int32_t)res);
254
}
255

    
256
/* division, flags are undefined */
257
/* XXX: add exceptions for overflow */
258

    
259
void OPPROTO op_divb_AL_T0(void)
260
{
261
    unsigned int num, den, q, r;
262

    
263
    num = (EAX & 0xffff);
264
    den = (T0 & 0xff);
265
    if (den == 0) {
266
        EIP = PARAM1;
267
        raise_exception(EXCP00_DIVZ);
268
    }
269
    q = (num / den) & 0xff;
270
    r = (num % den) & 0xff;
271
    EAX = (EAX & 0xffff0000) | (r << 8) | q;
272
}
273

    
274
void OPPROTO op_idivb_AL_T0(void)
275
{
276
    int num, den, q, r;
277

    
278
    num = (int16_t)EAX;
279
    den = (int8_t)T0;
280
    if (den == 0) {
281
        EIP = PARAM1;
282
        raise_exception(EXCP00_DIVZ);
283
    }
284
    q = (num / den) & 0xff;
285
    r = (num % den) & 0xff;
286
    EAX = (EAX & 0xffff0000) | (r << 8) | q;
287
}
288

    
289
void OPPROTO op_divw_AX_T0(void)
290
{
291
    unsigned int num, den, q, r;
292

    
293
    num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
294
    den = (T0 & 0xffff);
295
    if (den == 0) {
296
        EIP = PARAM1;
297
        raise_exception(EXCP00_DIVZ);
298
    }
299
    q = (num / den) & 0xffff;
300
    r = (num % den) & 0xffff;
301
    EAX = (EAX & 0xffff0000) | q;
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    EDX = (EDX & 0xffff0000) | r;
303
}
304

    
305
void OPPROTO op_idivw_AX_T0(void)
306
{
307
    int num, den, q, r;
308

    
309
    num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
310
    den = (int16_t)T0;
311
    if (den == 0) {
312
        EIP = PARAM1;
313
        raise_exception(EXCP00_DIVZ);
314
    }
315
    q = (num / den) & 0xffff;
316
    r = (num % den) & 0xffff;
317
    EAX = (EAX & 0xffff0000) | q;
318
    EDX = (EDX & 0xffff0000) | r;
319
}
320

    
321
void OPPROTO op_divl_EAX_T0(void)
322
{
323
    helper_divl_EAX_T0(PARAM1);
324
}
325

    
326
void OPPROTO op_idivl_EAX_T0(void)
327
{
328
    helper_idivl_EAX_T0(PARAM1);
329
}
330

    
331
/* constant load & misc op */
332

    
333
void OPPROTO op_movl_T0_im(void)
334
{
335
    T0 = PARAM1;
336
}
337

    
338
void OPPROTO op_addl_T0_im(void)
339
{
340
    T0 += PARAM1;
341
}
342

    
343
void OPPROTO op_andl_T0_ffff(void)
344
{
345
    T0 = T0 & 0xffff;
346
}
347

    
348
void OPPROTO op_andl_T0_im(void)
349
{
350
    T0 = T0 & PARAM1;
351
}
352

    
353
void OPPROTO op_movl_T0_T1(void)
354
{
355
    T0 = T1;
356
}
357

    
358
void OPPROTO op_movl_T1_im(void)
359
{
360
    T1 = PARAM1;
361
}
362

    
363
void OPPROTO op_addl_T1_im(void)
364
{
365
    T1 += PARAM1;
366
}
367

    
368
void OPPROTO op_movl_T1_A0(void)
369
{
370
    T1 = A0;
371
}
372

    
373
void OPPROTO op_movl_A0_im(void)
374
{
375
    A0 = PARAM1;
376
}
377

    
378
void OPPROTO op_addl_A0_im(void)
379
{
380
    A0 += PARAM1;
381
}
382

    
383
void OPPROTO op_addl_A0_AL(void)
384
{
385
    A0 += (EAX & 0xff);
386
}
387

    
388
void OPPROTO op_andl_A0_ffff(void)
389
{
390
    A0 = A0 & 0xffff;
391
}
392

    
393
/* memory access */
394

    
395
#define MEMSUFFIX _raw
396
#include "ops_mem.h"
397

    
398
#if !defined(CONFIG_USER_ONLY)
399
#define MEMSUFFIX _kernel
400
#include "ops_mem.h"
401

    
402
#define MEMSUFFIX _user
403
#include "ops_mem.h"
404
#endif
405

    
406
/* used for bit operations */
407

    
408
void OPPROTO op_add_bitw_A0_T1(void)
409
{
410
    A0 += ((int16_t)T1 >> 4) << 1;
411
}
412

    
413
void OPPROTO op_add_bitl_A0_T1(void)
414
{
415
    A0 += ((int32_t)T1 >> 5) << 2;
416
}
417

    
418
/* indirect jump */
419

    
420
void OPPROTO op_jmp_T0(void)
421
{
422
    EIP = T0;
423
}
424

    
425
void OPPROTO op_jmp_im(void)
426
{
427
    EIP = PARAM1;
428
}
429

    
430
void OPPROTO op_hlt(void)
431
{
432
    env->exception_index = EXCP_HLT;
433
    cpu_loop_exit();
434
}
435

    
436
void OPPROTO op_debug(void)
437
{
438
    env->exception_index = EXCP_DEBUG;
439
    cpu_loop_exit();
440
}
441

    
442
void OPPROTO op_raise_interrupt(void)
443
{
444
    int intno;
445
    unsigned int next_eip;
446
    intno = PARAM1;
447
    next_eip = PARAM2;
448
    raise_interrupt(intno, 1, 0, next_eip);
449
}
450

    
451
void OPPROTO op_raise_exception(void)
452
{
453
    int exception_index;
454
    exception_index = PARAM1;
455
    raise_exception(exception_index);
456
}
457

    
458
void OPPROTO op_into(void)
459
{
460
    int eflags;
461
    eflags = cc_table[CC_OP].compute_all();
462
    if (eflags & CC_O) {
463
        raise_interrupt(EXCP04_INTO, 1, 0, PARAM1);
464
    }
465
    FORCE_RET();
466
}
467

    
468
void OPPROTO op_cli(void)
469
{
470
    env->eflags &= ~IF_MASK;
471
}
472

    
473
void OPPROTO op_sti(void)
474
{
475
    env->eflags |= IF_MASK;
476
}
477

    
478
void OPPROTO op_set_inhibit_irq(void)
479
{
480
    env->hflags |= HF_INHIBIT_IRQ_MASK;
481
}
482

    
483
void OPPROTO op_reset_inhibit_irq(void)
484
{
485
    env->hflags &= ~HF_INHIBIT_IRQ_MASK;
486
}
487

    
488
#if 0
489
/* vm86plus instructions */
490
void OPPROTO op_cli_vm(void)
491
{
492
    env->eflags &= ~VIF_MASK;
493
}
494

495
void OPPROTO op_sti_vm(void)
496
{
497
    env->eflags |= VIF_MASK;
498
    if (env->eflags & VIP_MASK) {
499
        EIP = PARAM1;
500
        raise_exception(EXCP0D_GPF);
501
    }
502
    FORCE_RET();
503
}
504
#endif
505

    
506
void OPPROTO op_boundw(void)
507
{
508
    int low, high, v;
509
    low = ldsw((uint8_t *)A0);
510
    high = ldsw((uint8_t *)A0 + 2);
511
    v = (int16_t)T0;
512
    if (v < low || v > high) {
513
        EIP = PARAM1;
514
        raise_exception(EXCP05_BOUND);
515
    }
516
    FORCE_RET();
517
}
518

    
519
void OPPROTO op_boundl(void)
520
{
521
    int low, high, v;
522
    low = ldl((uint8_t *)A0);
523
    high = ldl((uint8_t *)A0 + 4);
524
    v = T0;
525
    if (v < low || v > high) {
526
        EIP = PARAM1;
527
        raise_exception(EXCP05_BOUND);
528
    }
529
    FORCE_RET();
530
}
531

    
532
void OPPROTO op_cmpxchg8b(void)
533
{
534
    helper_cmpxchg8b();
535
}
536

    
537
void OPPROTO op_jmp(void)
538
{
539
    JUMP_TB(op_jmp, PARAM1, 0, PARAM2);
540
}
541

    
542
void OPPROTO op_movl_T0_0(void)
543
{
544
    T0 = 0;
545
}
546

    
547
void OPPROTO op_exit_tb(void)
548
{
549
    EXIT_TB();
550
}
551

    
552
/* multiple size ops */
553

    
554
#define ldul ldl
555

    
556
#define SHIFT 0
557
#include "ops_template.h"
558
#undef SHIFT
559

    
560
#define SHIFT 1
561
#include "ops_template.h"
562
#undef SHIFT
563

    
564
#define SHIFT 2
565
#include "ops_template.h"
566
#undef SHIFT
567

    
568
/* sign extend */
569

    
570
void OPPROTO op_movsbl_T0_T0(void)
571
{
572
    T0 = (int8_t)T0;
573
}
574

    
575
void OPPROTO op_movzbl_T0_T0(void)
576
{
577
    T0 = (uint8_t)T0;
578
}
579

    
580
void OPPROTO op_movswl_T0_T0(void)
581
{
582
    T0 = (int16_t)T0;
583
}
584

    
585
void OPPROTO op_movzwl_T0_T0(void)
586
{
587
    T0 = (uint16_t)T0;
588
}
589

    
590
void OPPROTO op_movswl_EAX_AX(void)
591
{
592
    EAX = (int16_t)EAX;
593
}
594

    
595
void OPPROTO op_movsbw_AX_AL(void)
596
{
597
    EAX = (EAX & 0xffff0000) | ((int8_t)EAX & 0xffff);
598
}
599

    
600
void OPPROTO op_movslq_EDX_EAX(void)
601
{
602
    EDX = (int32_t)EAX >> 31;
603
}
604

    
605
void OPPROTO op_movswl_DX_AX(void)
606
{
607
    EDX = (EDX & 0xffff0000) | (((int16_t)EAX >> 15) & 0xffff);
608
}
609

    
610
/* string ops helpers */
611

    
612
void OPPROTO op_addl_ESI_T0(void)
613
{
614
    ESI += T0;
615
}
616

    
617
void OPPROTO op_addw_ESI_T0(void)
618
{
619
    ESI = (ESI & ~0xffff) | ((ESI + T0) & 0xffff);
620
}
621

    
622
void OPPROTO op_addl_EDI_T0(void)
623
{
624
    EDI += T0;
625
}
626

    
627
void OPPROTO op_addw_EDI_T0(void)
628
{
629
    EDI = (EDI & ~0xffff) | ((EDI + T0) & 0xffff);
630
}
631

    
632
void OPPROTO op_decl_ECX(void)
633
{
634
    ECX--;
635
}
636

    
637
void OPPROTO op_decw_ECX(void)
638
{
639
    ECX = (ECX & ~0xffff) | ((ECX - 1) & 0xffff);
640
}
641

    
642
/* push/pop utils */
643

    
644
void op_addl_A0_SS(void)
645
{
646
    A0 += (long)env->segs[R_SS].base;
647
}
648

    
649
void op_subl_A0_2(void)
650
{
651
    A0 -= 2;
652
}
653

    
654
void op_subl_A0_4(void)
655
{
656
    A0 -= 4;
657
}
658

    
659
void op_addl_ESP_4(void)
660
{
661
    ESP += 4;
662
}
663

    
664
void op_addl_ESP_2(void)
665
{
666
    ESP += 2;
667
}
668

    
669
void op_addw_ESP_4(void)
670
{
671
    ESP = (ESP & ~0xffff) | ((ESP + 4) & 0xffff);
672
}
673

    
674
void op_addw_ESP_2(void)
675
{
676
    ESP = (ESP & ~0xffff) | ((ESP + 2) & 0xffff);
677
}
678

    
679
void op_addl_ESP_im(void)
680
{
681
    ESP += PARAM1;
682
}
683

    
684
void op_addw_ESP_im(void)
685
{
686
    ESP = (ESP & ~0xffff) | ((ESP + PARAM1) & 0xffff);
687
}
688

    
689
void OPPROTO op_rdtsc(void)
690
{
691
    helper_rdtsc();
692
}
693

    
694
void OPPROTO op_cpuid(void)
695
{
696
    helper_cpuid();
697
}
698

    
699
void OPPROTO op_rdmsr(void)
700
{
701
    helper_rdmsr();
702
}
703

    
704
void OPPROTO op_wrmsr(void)
705
{
706
    helper_wrmsr();
707
}
708

    
709
/* bcd */
710

    
711
/* XXX: exception */
712
void OPPROTO op_aam(void)
713
{
714
    int base = PARAM1;
715
    int al, ah;
716
    al = EAX & 0xff;
717
    ah = al / base;
718
    al = al % base;
719
    EAX = (EAX & ~0xffff) | al | (ah << 8);
720
    CC_DST = al;
721
}
722

    
723
void OPPROTO op_aad(void)
724
{
725
    int base = PARAM1;
726
    int al, ah;
727
    al = EAX & 0xff;
728
    ah = (EAX >> 8) & 0xff;
729
    al = ((ah * base) + al) & 0xff;
730
    EAX = (EAX & ~0xffff) | al;
731
    CC_DST = al;
732
}
733

    
734
void OPPROTO op_aaa(void)
735
{
736
    int icarry;
737
    int al, ah, af;
738
    int eflags;
739

    
740
    eflags = cc_table[CC_OP].compute_all();
741
    af = eflags & CC_A;
742
    al = EAX & 0xff;
743
    ah = (EAX >> 8) & 0xff;
744

    
745
    icarry = (al > 0xf9);
746
    if (((al & 0x0f) > 9 ) || af) {
747
        al = (al + 6) & 0x0f;
748
        ah = (ah + 1 + icarry) & 0xff;
749
        eflags |= CC_C | CC_A;
750
    } else {
751
        eflags &= ~(CC_C | CC_A);
752
        al &= 0x0f;
753
    }
754
    EAX = (EAX & ~0xffff) | al | (ah << 8);
755
    CC_SRC = eflags;
756
}
757

    
758
void OPPROTO op_aas(void)
759
{
760
    int icarry;
761
    int al, ah, af;
762
    int eflags;
763

    
764
    eflags = cc_table[CC_OP].compute_all();
765
    af = eflags & CC_A;
766
    al = EAX & 0xff;
767
    ah = (EAX >> 8) & 0xff;
768

    
769
    icarry = (al < 6);
770
    if (((al & 0x0f) > 9 ) || af) {
771
        al = (al - 6) & 0x0f;
772
        ah = (ah - 1 - icarry) & 0xff;
773
        eflags |= CC_C | CC_A;
774
    } else {
775
        eflags &= ~(CC_C | CC_A);
776
        al &= 0x0f;
777
    }
778
    EAX = (EAX & ~0xffff) | al | (ah << 8);
779
    CC_SRC = eflags;
780
}
781

    
782
void OPPROTO op_daa(void)
783
{
784
    int al, af, cf;
785
    int eflags;
786

    
787
    eflags = cc_table[CC_OP].compute_all();
788
    cf = eflags & CC_C;
789
    af = eflags & CC_A;
790
    al = EAX & 0xff;
791

    
792
    eflags = 0;
793
    if (((al & 0x0f) > 9 ) || af) {
794
        al = (al + 6) & 0xff;
795
        eflags |= CC_A;
796
    }
797
    if ((al > 0x9f) || cf) {
798
        al = (al + 0x60) & 0xff;
799
        eflags |= CC_C;
800
    }
801
    EAX = (EAX & ~0xff) | al;
802
    /* well, speed is not an issue here, so we compute the flags by hand */
803
    eflags |= (al == 0) << 6; /* zf */
804
    eflags |= parity_table[al]; /* pf */
805
    eflags |= (al & 0x80); /* sf */
806
    CC_SRC = eflags;
807
}
808

    
809
void OPPROTO op_das(void)
810
{
811
    int al, al1, af, cf;
812
    int eflags;
813

    
814
    eflags = cc_table[CC_OP].compute_all();
815
    cf = eflags & CC_C;
816
    af = eflags & CC_A;
817
    al = EAX & 0xff;
818

    
819
    eflags = 0;
820
    al1 = al;
821
    if (((al & 0x0f) > 9 ) || af) {
822
        eflags |= CC_A;
823
        if (al < 6 || cf)
824
            eflags |= CC_C;
825
        al = (al - 6) & 0xff;
826
    }
827
    if ((al1 > 0x99) || cf) {
828
        al = (al - 0x60) & 0xff;
829
        eflags |= CC_C;
830
    }
831
    EAX = (EAX & ~0xff) | al;
832
    /* well, speed is not an issue here, so we compute the flags by hand */
833
    eflags |= (al == 0) << 6; /* zf */
834
    eflags |= parity_table[al]; /* pf */
835
    eflags |= (al & 0x80); /* sf */
836
    CC_SRC = eflags;
837
}
838

    
839
/* segment handling */
840

    
841
/* never use it with R_CS */
842
void OPPROTO op_movl_seg_T0(void)
843
{
844
    load_seg(PARAM1, T0);
845
}
846

    
847
/* faster VM86 version */
848
void OPPROTO op_movl_seg_T0_vm(void)
849
{
850
    int selector;
851
    SegmentCache *sc;
852
    
853
    selector = T0 & 0xffff;
854
    /* env->segs[] access */
855
    sc = (SegmentCache *)((char *)env + PARAM1);
856
    sc->selector = selector;
857
    sc->base = (void *)(selector << 4);
858
}
859

    
860
void OPPROTO op_movl_T0_seg(void)
861
{
862
    T0 = env->segs[PARAM1].selector;
863
}
864

    
865
void OPPROTO op_movl_A0_seg(void)
866
{
867
    A0 = *(unsigned long *)((char *)env + PARAM1);
868
}
869

    
870
void OPPROTO op_addl_A0_seg(void)
871
{
872
    A0 += *(unsigned long *)((char *)env + PARAM1);
873
}
874

    
875
void OPPROTO op_lsl(void)
876
{
877
    helper_lsl();
878
}
879

    
880
void OPPROTO op_lar(void)
881
{
882
    helper_lar();
883
}
884

    
885
void OPPROTO op_verr(void)
886
{
887
    helper_verr();
888
}
889

    
890
void OPPROTO op_verw(void)
891
{
892
    helper_verw();
893
}
894

    
895
void OPPROTO op_arpl(void)
896
{
897
    if ((T0 & 3) < (T1 & 3)) {
898
        /* XXX: emulate bug or 0xff3f0000 oring as in bochs ? */
899
        T0 = (T0 & ~3) | (T1 & 3);
900
        T1 = CC_Z;
901
   } else {
902
        T1 = 0;
903
    }
904
    FORCE_RET();
905
}
906
            
907
void OPPROTO op_arpl_update(void)
908
{
909
    int eflags;
910
    eflags = cc_table[CC_OP].compute_all();
911
    CC_SRC = (eflags & ~CC_Z) | T1;
912
}
913
    
914
/* T0: segment, T1:eip */
915
void OPPROTO op_ljmp_protected_T0_T1(void)
916
{
917
    helper_ljmp_protected_T0_T1();
918
}
919

    
920
void OPPROTO op_lcall_real_T0_T1(void)
921
{
922
    helper_lcall_real_T0_T1(PARAM1, PARAM2);
923
}
924

    
925
void OPPROTO op_lcall_protected_T0_T1(void)
926
{
927
    helper_lcall_protected_T0_T1(PARAM1, PARAM2);
928
}
929

    
930
void OPPROTO op_iret_real(void)
931
{
932
    helper_iret_real(PARAM1);
933
}
934

    
935
void OPPROTO op_iret_protected(void)
936
{
937
    helper_iret_protected(PARAM1);
938
}
939

    
940
void OPPROTO op_lret_protected(void)
941
{
942
    helper_lret_protected(PARAM1, PARAM2);
943
}
944

    
945
void OPPROTO op_lldt_T0(void)
946
{
947
    helper_lldt_T0();
948
}
949

    
950
void OPPROTO op_ltr_T0(void)
951
{
952
    helper_ltr_T0();
953
}
954

    
955
/* CR registers access */
956
void OPPROTO op_movl_crN_T0(void)
957
{
958
    helper_movl_crN_T0(PARAM1);
959
}
960

    
961
/* DR registers access */
962
void OPPROTO op_movl_drN_T0(void)
963
{
964
    helper_movl_drN_T0(PARAM1);
965
}
966

    
967
void OPPROTO op_lmsw_T0(void)
968
{
969
    /* only 4 lower bits of CR0 are modified */
970
    T0 = (env->cr[0] & ~0xf) | (T0 & 0xf);
971
    helper_movl_crN_T0(0);
972
}
973

    
974
void OPPROTO op_invlpg_A0(void)
975
{
976
    helper_invlpg(A0);
977
}
978

    
979
void OPPROTO op_movl_T0_env(void)
980
{
981
    T0 = *(uint32_t *)((char *)env + PARAM1);
982
}
983

    
984
void OPPROTO op_movl_env_T0(void)
985
{
986
    *(uint32_t *)((char *)env + PARAM1) = T0;
987
}
988

    
989
void OPPROTO op_movl_env_T1(void)
990
{
991
    *(uint32_t *)((char *)env + PARAM1) = T1;
992
}
993

    
994
void OPPROTO op_clts(void)
995
{
996
    env->cr[0] &= ~CR0_TS_MASK;
997
}
998

    
999
/* flags handling */
1000

    
1001
/* slow jumps cases : in order to avoid calling a function with a
1002
   pointer (which can generate a stack frame on PowerPC), we use
1003
   op_setcc to set T0 and then call op_jcc. */
1004
void OPPROTO op_jcc(void)
1005
{
1006
    if (T0)
1007
        JUMP_TB(op_jcc, PARAM1, 0, PARAM2);
1008
    else
1009
        JUMP_TB(op_jcc, PARAM1, 1, PARAM3);
1010
    FORCE_RET();
1011
}
1012

    
1013
void OPPROTO op_jcc_im(void)
1014
{
1015
    if (T0)
1016
        EIP = PARAM1;
1017
    else
1018
        EIP = PARAM2;
1019
    FORCE_RET();
1020
}
1021

    
1022
/* slow set cases (compute x86 flags) */
1023
void OPPROTO op_seto_T0_cc(void)
1024
{
1025
    int eflags;
1026
    eflags = cc_table[CC_OP].compute_all();
1027
    T0 = (eflags >> 11) & 1;
1028
}
1029

    
1030
void OPPROTO op_setb_T0_cc(void)
1031
{
1032
    T0 = cc_table[CC_OP].compute_c();
1033
}
1034

    
1035
void OPPROTO op_setz_T0_cc(void)
1036
{
1037
    int eflags;
1038
    eflags = cc_table[CC_OP].compute_all();
1039
    T0 = (eflags >> 6) & 1;
1040
}
1041

    
1042
void OPPROTO op_setbe_T0_cc(void)
1043
{
1044
    int eflags;
1045
    eflags = cc_table[CC_OP].compute_all();
1046
    T0 = (eflags & (CC_Z | CC_C)) != 0;
1047
}
1048

    
1049
void OPPROTO op_sets_T0_cc(void)
1050
{
1051
    int eflags;
1052
    eflags = cc_table[CC_OP].compute_all();
1053
    T0 = (eflags >> 7) & 1;
1054
}
1055

    
1056
void OPPROTO op_setp_T0_cc(void)
1057
{
1058
    int eflags;
1059
    eflags = cc_table[CC_OP].compute_all();
1060
    T0 = (eflags >> 2) & 1;
1061
}
1062

    
1063
void OPPROTO op_setl_T0_cc(void)
1064
{
1065
    int eflags;
1066
    eflags = cc_table[CC_OP].compute_all();
1067
    T0 = ((eflags ^ (eflags >> 4)) >> 7) & 1;
1068
}
1069

    
1070
void OPPROTO op_setle_T0_cc(void)
1071
{
1072
    int eflags;
1073
    eflags = cc_table[CC_OP].compute_all();
1074
    T0 = (((eflags ^ (eflags >> 4)) & 0x80) || (eflags & CC_Z)) != 0;
1075
}
1076

    
1077
void OPPROTO op_xor_T0_1(void)
1078
{
1079
    T0 ^= 1;
1080
}
1081

    
1082
void OPPROTO op_set_cc_op(void)
1083
{
1084
    CC_OP = PARAM1;
1085
}
1086

    
1087
/* XXX: clear VIF/VIP in all ops ? */
1088

    
1089
void OPPROTO op_movl_eflags_T0(void)
1090
{
1091
    load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK));
1092
}
1093

    
1094
void OPPROTO op_movw_eflags_T0(void)
1095
{
1096
    load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK) & 0xffff);
1097
}
1098

    
1099
void OPPROTO op_movl_eflags_T0_io(void)
1100
{
1101
    load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK | IF_MASK));
1102
}
1103

    
1104
void OPPROTO op_movw_eflags_T0_io(void)
1105
{
1106
    load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK | IF_MASK) & 0xffff);
1107
}
1108

    
1109
void OPPROTO op_movl_eflags_T0_cpl0(void)
1110
{
1111
    load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK | IF_MASK | IOPL_MASK));
1112
}
1113

    
1114
void OPPROTO op_movw_eflags_T0_cpl0(void)
1115
{
1116
    load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK | IF_MASK | IOPL_MASK) & 0xffff);
1117
}
1118

    
1119
#if 0
1120
/* vm86plus version */
1121
void OPPROTO op_movw_eflags_T0_vm(void)
1122
{
1123
    int eflags;
1124
    eflags = T0;
1125
    CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1126
    DF = 1 - (2 * ((eflags >> 10) & 1));
1127
    /* we also update some system flags as in user mode */
1128
    env->eflags = (env->eflags & ~(FL_UPDATE_MASK16 | VIF_MASK)) |
1129
        (eflags & FL_UPDATE_MASK16);
1130
    if (eflags & IF_MASK) {
1131
        env->eflags |= VIF_MASK;
1132
        if (env->eflags & VIP_MASK) {
1133
            EIP = PARAM1;
1134
            raise_exception(EXCP0D_GPF);
1135
        }
1136
    }
1137
    FORCE_RET();
1138
}
1139

1140
void OPPROTO op_movl_eflags_T0_vm(void)
1141
{
1142
    int eflags;
1143
    eflags = T0;
1144
    CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1145
    DF = 1 - (2 * ((eflags >> 10) & 1));
1146
    /* we also update some system flags as in user mode */
1147
    env->eflags = (env->eflags & ~(FL_UPDATE_MASK32 | VIF_MASK)) |
1148
        (eflags & FL_UPDATE_MASK32);
1149
    if (eflags & IF_MASK) {
1150
        env->eflags |= VIF_MASK;
1151
        if (env->eflags & VIP_MASK) {
1152
            EIP = PARAM1;
1153
            raise_exception(EXCP0D_GPF);
1154
        }
1155
    }
1156
    FORCE_RET();
1157
}
1158
#endif
1159

    
1160
/* XXX: compute only O flag */
1161
void OPPROTO op_movb_eflags_T0(void)
1162
{
1163
    int of;
1164
    of = cc_table[CC_OP].compute_all() & CC_O;
1165
    CC_SRC = (T0 & (CC_S | CC_Z | CC_A | CC_P | CC_C)) | of;
1166
}
1167

    
1168
void OPPROTO op_movl_T0_eflags(void)
1169
{
1170
    int eflags;
1171
    eflags = cc_table[CC_OP].compute_all();
1172
    eflags |= (DF & DF_MASK);
1173
    eflags |= env->eflags & ~(VM_MASK | RF_MASK);
1174
    T0 = eflags;
1175
}
1176

    
1177
/* vm86plus version */
1178
#if 0
1179
void OPPROTO op_movl_T0_eflags_vm(void)
1180
{
1181
    int eflags;
1182
    eflags = cc_table[CC_OP].compute_all();
1183
    eflags |= (DF & DF_MASK);
1184
    eflags |= env->eflags & ~(VM_MASK | RF_MASK | IF_MASK);
1185
    if (env->eflags & VIF_MASK)
1186
        eflags |= IF_MASK;
1187
    T0 = eflags;
1188
}
1189
#endif
1190

    
1191
void OPPROTO op_cld(void)
1192
{
1193
    DF = 1;
1194
}
1195

    
1196
void OPPROTO op_std(void)
1197
{
1198
    DF = -1;
1199
}
1200

    
1201
void OPPROTO op_clc(void)
1202
{
1203
    int eflags;
1204
    eflags = cc_table[CC_OP].compute_all();
1205
    eflags &= ~CC_C;
1206
    CC_SRC = eflags;
1207
}
1208

    
1209
void OPPROTO op_stc(void)
1210
{
1211
    int eflags;
1212
    eflags = cc_table[CC_OP].compute_all();
1213
    eflags |= CC_C;
1214
    CC_SRC = eflags;
1215
}
1216

    
1217
void OPPROTO op_cmc(void)
1218
{
1219
    int eflags;
1220
    eflags = cc_table[CC_OP].compute_all();
1221
    eflags ^= CC_C;
1222
    CC_SRC = eflags;
1223
}
1224

    
1225
void OPPROTO op_salc(void)
1226
{
1227
    int cf;
1228
    cf = cc_table[CC_OP].compute_c();
1229
    EAX = (EAX & ~0xff) | ((-cf) & 0xff);
1230
}
1231

    
1232
static int compute_all_eflags(void)
1233
{
1234
    return CC_SRC;
1235
}
1236

    
1237
static int compute_c_eflags(void)
1238
{
1239
    return CC_SRC & CC_C;
1240
}
1241

    
1242
CCTable cc_table[CC_OP_NB] = {
1243
    [CC_OP_DYNAMIC] = { /* should never happen */ },
1244

    
1245
    [CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },
1246

    
1247
    [CC_OP_MULB] = { compute_all_mulb, compute_c_mull },
1248
    [CC_OP_MULW] = { compute_all_mulw, compute_c_mull },
1249
    [CC_OP_MULL] = { compute_all_mull, compute_c_mull },
1250

    
1251
    [CC_OP_ADDB] = { compute_all_addb, compute_c_addb },
1252
    [CC_OP_ADDW] = { compute_all_addw, compute_c_addw  },
1253
    [CC_OP_ADDL] = { compute_all_addl, compute_c_addl  },
1254

    
1255
    [CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },
1256
    [CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw  },
1257
    [CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl  },
1258

    
1259
    [CC_OP_SUBB] = { compute_all_subb, compute_c_subb  },
1260
    [CC_OP_SUBW] = { compute_all_subw, compute_c_subw  },
1261
    [CC_OP_SUBL] = { compute_all_subl, compute_c_subl  },
1262
    
1263
    [CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb  },
1264
    [CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw  },
1265
    [CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl  },
1266
    
1267
    [CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },
1268
    [CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },
1269
    [CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },
1270
    
1271
    [CC_OP_INCB] = { compute_all_incb, compute_c_incl },
1272
    [CC_OP_INCW] = { compute_all_incw, compute_c_incl },
1273
    [CC_OP_INCL] = { compute_all_incl, compute_c_incl },
1274
    
1275
    [CC_OP_DECB] = { compute_all_decb, compute_c_incl },
1276
    [CC_OP_DECW] = { compute_all_decw, compute_c_incl },
1277
    [CC_OP_DECL] = { compute_all_decl, compute_c_incl },
1278
    
1279
    [CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },
1280
    [CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },
1281
    [CC_OP_SHLL] = { compute_all_shll, compute_c_shll },
1282

    
1283
    [CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },
1284
    [CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },
1285
    [CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },
1286
};
1287

    
1288
/* floating point support. Some of the code for complicated x87
1289
   functions comes from the LGPL'ed x86 emulator found in the Willows
1290
   TWIN windows emulator. */
1291

    
1292
#if defined(__powerpc__)
1293
extern CPU86_LDouble copysign(CPU86_LDouble, CPU86_LDouble);
1294

    
1295
/* correct (but slow) PowerPC rint() (glibc version is incorrect) */
1296
double qemu_rint(double x)
1297
{
1298
    double y = 4503599627370496.0;
1299
    if (fabs(x) >= y)
1300
        return x;
1301
    if (x < 0) 
1302
        y = -y;
1303
    y = (x + y) - y;
1304
    if (y == 0.0)
1305
        y = copysign(y, x);
1306
    return y;
1307
}
1308

    
1309
#define rint qemu_rint
1310
#endif
1311

    
1312
/* fp load FT0 */
1313

    
1314
void OPPROTO op_flds_FT0_A0(void)
1315
{
1316
#ifdef USE_FP_CONVERT
1317
    FP_CONVERT.i32 = ldl((void *)A0);
1318
    FT0 = FP_CONVERT.f;
1319
#else
1320
    FT0 = ldfl((void *)A0);
1321
#endif
1322
}
1323

    
1324
void OPPROTO op_fldl_FT0_A0(void)
1325
{
1326
#ifdef USE_FP_CONVERT
1327
    FP_CONVERT.i64 = ldq((void *)A0);
1328
    FT0 = FP_CONVERT.d;
1329
#else
1330
    FT0 = ldfq((void *)A0);
1331
#endif
1332
}
1333

    
1334
/* helpers are needed to avoid static constant reference. XXX: find a better way */
1335
#ifdef USE_INT_TO_FLOAT_HELPERS
1336

    
1337
void helper_fild_FT0_A0(void)
1338
{
1339
    FT0 = (CPU86_LDouble)ldsw((void *)A0);
1340
}
1341

    
1342
void helper_fildl_FT0_A0(void)
1343
{
1344
    FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1345
}
1346

    
1347
void helper_fildll_FT0_A0(void)
1348
{
1349
    FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1350
}
1351

    
1352
void OPPROTO op_fild_FT0_A0(void)
1353
{
1354
    helper_fild_FT0_A0();
1355
}
1356

    
1357
void OPPROTO op_fildl_FT0_A0(void)
1358
{
1359
    helper_fildl_FT0_A0();
1360
}
1361

    
1362
void OPPROTO op_fildll_FT0_A0(void)
1363
{
1364
    helper_fildll_FT0_A0();
1365
}
1366

    
1367
#else
1368

    
1369
void OPPROTO op_fild_FT0_A0(void)
1370
{
1371
#ifdef USE_FP_CONVERT
1372
    FP_CONVERT.i32 = ldsw((void *)A0);
1373
    FT0 = (CPU86_LDouble)FP_CONVERT.i32;
1374
#else
1375
    FT0 = (CPU86_LDouble)ldsw((void *)A0);
1376
#endif
1377
}
1378

    
1379
void OPPROTO op_fildl_FT0_A0(void)
1380
{
1381
#ifdef USE_FP_CONVERT
1382
    FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
1383
    FT0 = (CPU86_LDouble)FP_CONVERT.i32;
1384
#else
1385
    FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1386
#endif
1387
}
1388

    
1389
void OPPROTO op_fildll_FT0_A0(void)
1390
{
1391
#ifdef USE_FP_CONVERT
1392
    FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
1393
    FT0 = (CPU86_LDouble)FP_CONVERT.i64;
1394
#else
1395
    FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1396
#endif
1397
}
1398
#endif
1399

    
1400
/* fp load ST0 */
1401

    
1402
void OPPROTO op_flds_ST0_A0(void)
1403
{
1404
    int new_fpstt;
1405
    new_fpstt = (env->fpstt - 1) & 7;
1406
#ifdef USE_FP_CONVERT
1407
    FP_CONVERT.i32 = ldl((void *)A0);
1408
    env->fpregs[new_fpstt] = FP_CONVERT.f;
1409
#else
1410
    env->fpregs[new_fpstt] = ldfl((void *)A0);
1411
#endif
1412
    env->fpstt = new_fpstt;
1413
    env->fptags[new_fpstt] = 0; /* validate stack entry */
1414
}
1415

    
1416
void OPPROTO op_fldl_ST0_A0(void)
1417
{
1418
    int new_fpstt;
1419
    new_fpstt = (env->fpstt - 1) & 7;
1420
#ifdef USE_FP_CONVERT
1421
    FP_CONVERT.i64 = ldq((void *)A0);
1422
    env->fpregs[new_fpstt] = FP_CONVERT.d;
1423
#else
1424
    env->fpregs[new_fpstt] = ldfq((void *)A0);
1425
#endif
1426
    env->fpstt = new_fpstt;
1427
    env->fptags[new_fpstt] = 0; /* validate stack entry */
1428
}
1429

    
1430
void OPPROTO op_fldt_ST0_A0(void)
1431
{
1432
    helper_fldt_ST0_A0();
1433
}
1434

    
1435
/* helpers are needed to avoid static constant reference. XXX: find a better way */
1436
#ifdef USE_INT_TO_FLOAT_HELPERS
1437

    
1438
void helper_fild_ST0_A0(void)
1439
{
1440
    int new_fpstt;
1441
    new_fpstt = (env->fpstt - 1) & 7;
1442
    env->fpregs[new_fpstt] = (CPU86_LDouble)ldsw((void *)A0);
1443
    env->fpstt = new_fpstt;
1444
    env->fptags[new_fpstt] = 0; /* validate stack entry */
1445
}
1446

    
1447
void helper_fildl_ST0_A0(void)
1448
{
1449
    int new_fpstt;
1450
    new_fpstt = (env->fpstt - 1) & 7;
1451
    env->fpregs[new_fpstt] = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1452
    env->fpstt = new_fpstt;
1453
    env->fptags[new_fpstt] = 0; /* validate stack entry */
1454
}
1455

    
1456
void helper_fildll_ST0_A0(void)
1457
{
1458
    int new_fpstt;
1459
    new_fpstt = (env->fpstt - 1) & 7;
1460
    env->fpregs[new_fpstt] = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1461
    env->fpstt = new_fpstt;
1462
    env->fptags[new_fpstt] = 0; /* validate stack entry */
1463
}
1464

    
1465
void OPPROTO op_fild_ST0_A0(void)
1466
{
1467
    helper_fild_ST0_A0();
1468
}
1469

    
1470
void OPPROTO op_fildl_ST0_A0(void)
1471
{
1472
    helper_fildl_ST0_A0();
1473
}
1474

    
1475
void OPPROTO op_fildll_ST0_A0(void)
1476
{
1477
    helper_fildll_ST0_A0();
1478
}
1479

    
1480
#else
1481

    
1482
void OPPROTO op_fild_ST0_A0(void)
1483
{
1484
    int new_fpstt;
1485
    new_fpstt = (env->fpstt - 1) & 7;
1486
#ifdef USE_FP_CONVERT
1487
    FP_CONVERT.i32 = ldsw((void *)A0);
1488
    env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i32;
1489
#else
1490
    env->fpregs[new_fpstt] = (CPU86_LDouble)ldsw((void *)A0);
1491
#endif
1492
    env->fpstt = new_fpstt;
1493
    env->fptags[new_fpstt] = 0; /* validate stack entry */
1494
}
1495

    
1496
void OPPROTO op_fildl_ST0_A0(void)
1497
{
1498
    int new_fpstt;
1499
    new_fpstt = (env->fpstt - 1) & 7;
1500
#ifdef USE_FP_CONVERT
1501
    FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
1502
    env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i32;
1503
#else
1504
    env->fpregs[new_fpstt] = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1505
#endif
1506
    env->fpstt = new_fpstt;
1507
    env->fptags[new_fpstt] = 0; /* validate stack entry */
1508
}
1509

    
1510
void OPPROTO op_fildll_ST0_A0(void)
1511
{
1512
    int new_fpstt;
1513
    new_fpstt = (env->fpstt - 1) & 7;
1514
#ifdef USE_FP_CONVERT
1515
    FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
1516
    env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i64;
1517
#else
1518
    env->fpregs[new_fpstt] = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1519
#endif
1520
    env->fpstt = new_fpstt;
1521
    env->fptags[new_fpstt] = 0; /* validate stack entry */
1522
}
1523

    
1524
#endif
1525

    
1526
/* fp store */
1527

    
1528
void OPPROTO op_fsts_ST0_A0(void)
1529
{
1530
#ifdef USE_FP_CONVERT
1531
    FP_CONVERT.f = (float)ST0;
1532
    stfl((void *)A0, FP_CONVERT.f);
1533
#else
1534
    stfl((void *)A0, (float)ST0);
1535
#endif
1536
}
1537

    
1538
void OPPROTO op_fstl_ST0_A0(void)
1539
{
1540
    stfq((void *)A0, (double)ST0);
1541
}
1542

    
1543
void OPPROTO op_fstt_ST0_A0(void)
1544
{
1545
    helper_fstt_ST0_A0();
1546
}
1547

    
1548
void OPPROTO op_fist_ST0_A0(void)
1549
{
1550
#if defined(__sparc__) && !defined(__sparc_v9__)
1551
    register CPU86_LDouble d asm("o0");
1552
#else
1553
    CPU86_LDouble d;
1554
#endif
1555
    int val;
1556

    
1557
    d = ST0;
1558
    val = lrint(d);
1559
    if (val != (int16_t)val)
1560
        val = -32768;
1561
    stw((void *)A0, val);
1562
}
1563

    
1564
void OPPROTO op_fistl_ST0_A0(void)
1565
{
1566
#if defined(__sparc__) && !defined(__sparc_v9__)
1567
    register CPU86_LDouble d asm("o0");
1568
#else
1569
    CPU86_LDouble d;
1570
#endif
1571
    int val;
1572

    
1573
    d = ST0;
1574
    val = lrint(d);
1575
    stl((void *)A0, val);
1576
}
1577

    
1578
void OPPROTO op_fistll_ST0_A0(void)
1579
{
1580
#if defined(__sparc__) && !defined(__sparc_v9__)
1581
    register CPU86_LDouble d asm("o0");
1582
#else
1583
    CPU86_LDouble d;
1584
#endif
1585
    int64_t val;
1586

    
1587
    d = ST0;
1588
    val = llrint(d);
1589
    stq((void *)A0, val);
1590
}
1591

    
1592
void OPPROTO op_fbld_ST0_A0(void)
1593
{
1594
    helper_fbld_ST0_A0();
1595
}
1596

    
1597
void OPPROTO op_fbst_ST0_A0(void)
1598
{
1599
    helper_fbst_ST0_A0();
1600
}
1601

    
1602
/* FPU move */
1603

    
1604
void OPPROTO op_fpush(void)
1605
{
1606
    fpush();
1607
}
1608

    
1609
void OPPROTO op_fpop(void)
1610
{
1611
    fpop();
1612
}
1613

    
1614
void OPPROTO op_fdecstp(void)
1615
{
1616
    env->fpstt = (env->fpstt - 1) & 7;
1617
    env->fpus &= (~0x4700);
1618
}
1619

    
1620
void OPPROTO op_fincstp(void)
1621
{
1622
    env->fpstt = (env->fpstt + 1) & 7;
1623
    env->fpus &= (~0x4700);
1624
}
1625

    
1626
void OPPROTO op_fmov_ST0_FT0(void)
1627
{
1628
    ST0 = FT0;
1629
}
1630

    
1631
void OPPROTO op_fmov_FT0_STN(void)
1632
{
1633
    FT0 = ST(PARAM1);
1634
}
1635

    
1636
void OPPROTO op_fmov_ST0_STN(void)
1637
{
1638
    ST0 = ST(PARAM1);
1639
}
1640

    
1641
void OPPROTO op_fmov_STN_ST0(void)
1642
{
1643
    ST(PARAM1) = ST0;
1644
}
1645

    
1646
void OPPROTO op_fxchg_ST0_STN(void)
1647
{
1648
    CPU86_LDouble tmp;
1649
    tmp = ST(PARAM1);
1650
    ST(PARAM1) = ST0;
1651
    ST0 = tmp;
1652
}
1653

    
1654
/* FPU operations */
1655

    
1656
/* XXX: handle nans */
1657
void OPPROTO op_fcom_ST0_FT0(void)
1658
{
1659
    env->fpus &= (~0x4500);        /* (C3,C2,C0) <-- 000 */
1660
    if (ST0 < FT0)
1661
        env->fpus |= 0x100;        /* (C3,C2,C0) <-- 001 */
1662
    else if (ST0 == FT0)
1663
        env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */
1664
    FORCE_RET();
1665
}
1666

    
1667
/* XXX: handle nans */
1668
void OPPROTO op_fucom_ST0_FT0(void)
1669
{
1670
    env->fpus &= (~0x4500);        /* (C3,C2,C0) <-- 000 */
1671
    if (ST0 < FT0)
1672
        env->fpus |= 0x100;        /* (C3,C2,C0) <-- 001 */
1673
    else if (ST0 == FT0)
1674
        env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */
1675
    FORCE_RET();
1676
}
1677

    
1678
/* XXX: handle nans */
1679
void OPPROTO op_fcomi_ST0_FT0(void)
1680
{
1681
    int eflags;
1682
    eflags = cc_table[CC_OP].compute_all();
1683
    eflags &= ~(CC_Z | CC_P | CC_C);
1684
    if (ST0 < FT0)
1685
        eflags |= CC_C;
1686
    else if (ST0 == FT0)
1687
        eflags |= CC_Z;
1688
    CC_SRC = eflags;
1689
    FORCE_RET();
1690
}
1691

    
1692
/* XXX: handle nans */
1693
void OPPROTO op_fucomi_ST0_FT0(void)
1694
{
1695
    int eflags;
1696
    eflags = cc_table[CC_OP].compute_all();
1697
    eflags &= ~(CC_Z | CC_P | CC_C);
1698
    if (ST0 < FT0)
1699
        eflags |= CC_C;
1700
    else if (ST0 == FT0)
1701
        eflags |= CC_Z;
1702
    CC_SRC = eflags;
1703
    FORCE_RET();
1704
}
1705

    
1706
void OPPROTO op_fcmov_ST0_STN_T0(void)
1707
{
1708
    if (T0) {
1709
        ST0 = ST(PARAM1);
1710
    }
1711
    FORCE_RET();
1712
}
1713

    
1714
void OPPROTO op_fadd_ST0_FT0(void)
1715
{
1716
    ST0 += FT0;
1717
}
1718

    
1719
void OPPROTO op_fmul_ST0_FT0(void)
1720
{
1721
    ST0 *= FT0;
1722
}
1723

    
1724
void OPPROTO op_fsub_ST0_FT0(void)
1725
{
1726
    ST0 -= FT0;
1727
}
1728

    
1729
void OPPROTO op_fsubr_ST0_FT0(void)
1730
{
1731
    ST0 = FT0 - ST0;
1732
}
1733

    
1734
void OPPROTO op_fdiv_ST0_FT0(void)
1735
{
1736
    ST0 /= FT0;
1737
}
1738

    
1739
void OPPROTO op_fdivr_ST0_FT0(void)
1740
{
1741
    ST0 = FT0 / ST0;
1742
}
1743

    
1744
/* fp operations between STN and ST0 */
1745

    
1746
void OPPROTO op_fadd_STN_ST0(void)
1747
{
1748
    ST(PARAM1) += ST0;
1749
}
1750

    
1751
void OPPROTO op_fmul_STN_ST0(void)
1752
{
1753
    ST(PARAM1) *= ST0;
1754
}
1755

    
1756
void OPPROTO op_fsub_STN_ST0(void)
1757
{
1758
    ST(PARAM1) -= ST0;
1759
}
1760

    
1761
void OPPROTO op_fsubr_STN_ST0(void)
1762
{
1763
    CPU86_LDouble *p;
1764
    p = &ST(PARAM1);
1765
    *p = ST0 - *p;
1766
}
1767

    
1768
void OPPROTO op_fdiv_STN_ST0(void)
1769
{
1770
    ST(PARAM1) /= ST0;
1771
}
1772

    
1773
void OPPROTO op_fdivr_STN_ST0(void)
1774
{
1775
    CPU86_LDouble *p;
1776
    p = &ST(PARAM1);
1777
    *p = ST0 / *p;
1778
}
1779

    
1780
/* misc FPU operations */
1781
void OPPROTO op_fchs_ST0(void)
1782
{
1783
    ST0 = -ST0;
1784
}
1785

    
1786
void OPPROTO op_fabs_ST0(void)
1787
{
1788
    ST0 = fabs(ST0);
1789
}
1790

    
1791
void OPPROTO op_fxam_ST0(void)
1792
{
1793
    helper_fxam_ST0();
1794
}
1795

    
1796
void OPPROTO op_fld1_ST0(void)
1797
{
1798
    ST0 = f15rk[1];
1799
}
1800

    
1801
void OPPROTO op_fldl2t_ST0(void)
1802
{
1803
    ST0 = f15rk[6];
1804
}
1805

    
1806
void OPPROTO op_fldl2e_ST0(void)
1807
{
1808
    ST0 = f15rk[5];
1809
}
1810

    
1811
void OPPROTO op_fldpi_ST0(void)
1812
{
1813
    ST0 = f15rk[2];
1814
}
1815

    
1816
void OPPROTO op_fldlg2_ST0(void)
1817
{
1818
    ST0 = f15rk[3];
1819
}
1820

    
1821
void OPPROTO op_fldln2_ST0(void)
1822
{
1823
    ST0 = f15rk[4];
1824
}
1825

    
1826
void OPPROTO op_fldz_ST0(void)
1827
{
1828
    ST0 = f15rk[0];
1829
}
1830

    
1831
void OPPROTO op_fldz_FT0(void)
1832
{
1833
    FT0 = f15rk[0];
1834
}
1835

    
1836
/* associated heplers to reduce generated code length and to simplify
1837
   relocation (FP constants are usually stored in .rodata section) */
1838

    
1839
void OPPROTO op_f2xm1(void)
1840
{
1841
    helper_f2xm1();
1842
}
1843

    
1844
void OPPROTO op_fyl2x(void)
1845
{
1846
    helper_fyl2x();
1847
}
1848

    
1849
void OPPROTO op_fptan(void)
1850
{
1851
    helper_fptan();
1852
}
1853

    
1854
void OPPROTO op_fpatan(void)
1855
{
1856
    helper_fpatan();
1857
}
1858

    
1859
void OPPROTO op_fxtract(void)
1860
{
1861
    helper_fxtract();
1862
}
1863

    
1864
void OPPROTO op_fprem1(void)
1865
{
1866
    helper_fprem1();
1867
}
1868

    
1869

    
1870
void OPPROTO op_fprem(void)
1871
{
1872
    helper_fprem();
1873
}
1874

    
1875
void OPPROTO op_fyl2xp1(void)
1876
{
1877
    helper_fyl2xp1();
1878
}
1879

    
1880
void OPPROTO op_fsqrt(void)
1881
{
1882
    helper_fsqrt();
1883
}
1884

    
1885
void OPPROTO op_fsincos(void)
1886
{
1887
    helper_fsincos();
1888
}
1889

    
1890
void OPPROTO op_frndint(void)
1891
{
1892
    helper_frndint();
1893
}
1894

    
1895
void OPPROTO op_fscale(void)
1896
{
1897
    helper_fscale();
1898
}
1899

    
1900
void OPPROTO op_fsin(void)
1901
{
1902
    helper_fsin();
1903
}
1904

    
1905
void OPPROTO op_fcos(void)
1906
{
1907
    helper_fcos();
1908
}
1909

    
1910
void OPPROTO op_fnstsw_A0(void)
1911
{
1912
    int fpus;
1913
    fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
1914
    stw((void *)A0, fpus);
1915
}
1916

    
1917
void OPPROTO op_fnstsw_EAX(void)
1918
{
1919
    int fpus;
1920
    fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
1921
    EAX = (EAX & 0xffff0000) | fpus;
1922
}
1923

    
1924
void OPPROTO op_fnstcw_A0(void)
1925
{
1926
    stw((void *)A0, env->fpuc);
1927
}
1928

    
1929
void OPPROTO op_fldcw_A0(void)
1930
{
1931
    int rnd_type;
1932
    env->fpuc = lduw((void *)A0);
1933
    /* set rounding mode */
1934
    switch(env->fpuc & RC_MASK) {
1935
    default:
1936
    case RC_NEAR:
1937
        rnd_type = FE_TONEAREST;
1938
        break;
1939
    case RC_DOWN:
1940
        rnd_type = FE_DOWNWARD;
1941
        break;
1942
    case RC_UP:
1943
        rnd_type = FE_UPWARD;
1944
        break;
1945
    case RC_CHOP:
1946
        rnd_type = FE_TOWARDZERO;
1947
        break;
1948
    }
1949
    fesetround(rnd_type);
1950
}
1951

    
1952
void OPPROTO op_fclex(void)
1953
{
1954
    env->fpus &= 0x7f00;
1955
}
1956

    
1957
void OPPROTO op_fninit(void)
1958
{
1959
    env->fpus = 0;
1960
    env->fpstt = 0;
1961
    env->fpuc = 0x37f;
1962
    env->fptags[0] = 1;
1963
    env->fptags[1] = 1;
1964
    env->fptags[2] = 1;
1965
    env->fptags[3] = 1;
1966
    env->fptags[4] = 1;
1967
    env->fptags[5] = 1;
1968
    env->fptags[6] = 1;
1969
    env->fptags[7] = 1;
1970
}
1971

    
1972
void OPPROTO op_fnstenv_A0(void)
1973
{
1974
    helper_fstenv((uint8_t *)A0, PARAM1);
1975
}
1976

    
1977
void OPPROTO op_fldenv_A0(void)
1978
{
1979
    helper_fldenv((uint8_t *)A0, PARAM1);
1980
}
1981

    
1982
void OPPROTO op_fnsave_A0(void)
1983
{
1984
    helper_fsave((uint8_t *)A0, PARAM1);
1985
}
1986

    
1987
void OPPROTO op_frstor_A0(void)
1988
{
1989
    helper_frstor((uint8_t *)A0, PARAM1);
1990
}
1991

    
1992
/* threading support */
1993
void OPPROTO op_lock(void)
1994
{
1995
    cpu_lock();
1996
}
1997

    
1998
void OPPROTO op_unlock(void)
1999
{
2000
    cpu_unlock();
2001
}
2002