qemu/target/m68k/fpu_helper.c
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   1/*
   2 *  m68k FPU helpers
   3 *
   4 *  Copyright (c) 2006-2007 CodeSourcery
   5 *  Written by Paul Brook
   6 *
   7 * This library is free software; you can redistribute it and/or
   8 * modify it under the terms of the GNU Lesser General Public
   9 * License as published by the Free Software Foundation; either
  10 * version 2.1 of the License, or (at your option) any later version.
  11 *
  12 * This library is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 * Lesser General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU Lesser General Public
  18 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21#include "qemu/osdep.h"
  22#include "cpu.h"
  23#include "exec/helper-proto.h"
  24#include "exec/exec-all.h"
  25#include "exec/cpu_ldst.h"
  26#include "softfloat.h"
  27
  28/*
  29 * Undefined offsets may be different on various FPU.
  30 * On 68040 they return 0.0 (floatx80_zero)
  31 */
  32
  33static const floatx80 fpu_rom[128] = {
  34    [0x00] = make_floatx80_init(0x4000, 0xc90fdaa22168c235ULL),  /* Pi       */
  35    [0x0b] = make_floatx80_init(0x3ffd, 0x9a209a84fbcff798ULL),  /* Log10(2) */
  36    [0x0c] = make_floatx80_init(0x4000, 0xadf85458a2bb4a9aULL),  /* e        */
  37    [0x0d] = make_floatx80_init(0x3fff, 0xb8aa3b295c17f0bcULL),  /* Log2(e)  */
  38    [0x0e] = make_floatx80_init(0x3ffd, 0xde5bd8a937287195ULL),  /* Log10(e) */
  39    [0x0f] = make_floatx80_init(0x0000, 0x0000000000000000ULL),  /* Zero     */
  40    [0x30] = make_floatx80_init(0x3ffe, 0xb17217f7d1cf79acULL),  /* ln(2)    */
  41    [0x31] = make_floatx80_init(0x4000, 0x935d8dddaaa8ac17ULL),  /* ln(10)   */
  42    [0x32] = make_floatx80_init(0x3fff, 0x8000000000000000ULL),  /* 10^0     */
  43    [0x33] = make_floatx80_init(0x4002, 0xa000000000000000ULL),  /* 10^1     */
  44    [0x34] = make_floatx80_init(0x4005, 0xc800000000000000ULL),  /* 10^2     */
  45    [0x35] = make_floatx80_init(0x400c, 0x9c40000000000000ULL),  /* 10^4     */
  46    [0x36] = make_floatx80_init(0x4019, 0xbebc200000000000ULL),  /* 10^8     */
  47    [0x37] = make_floatx80_init(0x4034, 0x8e1bc9bf04000000ULL),  /* 10^16    */
  48    [0x38] = make_floatx80_init(0x4069, 0x9dc5ada82b70b59eULL),  /* 10^32    */
  49    [0x39] = make_floatx80_init(0x40d3, 0xc2781f49ffcfa6d5ULL),  /* 10^64    */
  50    [0x3a] = make_floatx80_init(0x41a8, 0x93ba47c980e98ce0ULL),  /* 10^128   */
  51    [0x3b] = make_floatx80_init(0x4351, 0xaa7eebfb9df9de8eULL),  /* 10^256   */
  52    [0x3c] = make_floatx80_init(0x46a3, 0xe319a0aea60e91c7ULL),  /* 10^512   */
  53    [0x3d] = make_floatx80_init(0x4d48, 0xc976758681750c17ULL),  /* 10^1024  */
  54    [0x3e] = make_floatx80_init(0x5a92, 0x9e8b3b5dc53d5de5ULL),  /* 10^2048  */
  55    [0x3f] = make_floatx80_init(0x7525, 0xc46052028a20979bULL),  /* 10^4096  */
  56};
  57
  58int32_t HELPER(reds32)(CPUM68KState *env, FPReg *val)
  59{
  60    return floatx80_to_int32(val->d, &env->fp_status);
  61}
  62
  63float32 HELPER(redf32)(CPUM68KState *env, FPReg *val)
  64{
  65    return floatx80_to_float32(val->d, &env->fp_status);
  66}
  67
  68void HELPER(exts32)(CPUM68KState *env, FPReg *res, int32_t val)
  69{
  70    res->d = int32_to_floatx80(val, &env->fp_status);
  71}
  72
  73void HELPER(extf32)(CPUM68KState *env, FPReg *res, float32 val)
  74{
  75    res->d = float32_to_floatx80(val, &env->fp_status);
  76}
  77
  78void HELPER(extf64)(CPUM68KState *env, FPReg *res, float64 val)
  79{
  80    res->d = float64_to_floatx80(val, &env->fp_status);
  81}
  82
  83float64 HELPER(redf64)(CPUM68KState *env, FPReg *val)
  84{
  85    return floatx80_to_float64(val->d, &env->fp_status);
  86}
  87
  88void HELPER(firound)(CPUM68KState *env, FPReg *res, FPReg *val)
  89{
  90    res->d = floatx80_round_to_int(val->d, &env->fp_status);
  91}
  92
  93static void m68k_restore_precision_mode(CPUM68KState *env)
  94{
  95    switch (env->fpcr & FPCR_PREC_MASK) {
  96    case FPCR_PREC_X: /* extended */
  97        set_floatx80_rounding_precision(floatx80_precision_x, &env->fp_status);
  98        break;
  99    case FPCR_PREC_S: /* single */
 100        set_floatx80_rounding_precision(floatx80_precision_s, &env->fp_status);
 101        break;
 102    case FPCR_PREC_D: /* double */
 103        set_floatx80_rounding_precision(floatx80_precision_d, &env->fp_status);
 104        break;
 105    case FPCR_PREC_U: /* undefined */
 106    default:
 107        break;
 108    }
 109}
 110
 111static void cf_restore_precision_mode(CPUM68KState *env)
 112{
 113    if (env->fpcr & FPCR_PREC_S) { /* single */
 114        set_floatx80_rounding_precision(floatx80_precision_s, &env->fp_status);
 115    } else { /* double */
 116        set_floatx80_rounding_precision(floatx80_precision_d, &env->fp_status);
 117    }
 118}
 119
 120static void restore_rounding_mode(CPUM68KState *env)
 121{
 122    switch (env->fpcr & FPCR_RND_MASK) {
 123    case FPCR_RND_N: /* round to nearest */
 124        set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
 125        break;
 126    case FPCR_RND_Z: /* round to zero */
 127        set_float_rounding_mode(float_round_to_zero, &env->fp_status);
 128        break;
 129    case FPCR_RND_M: /* round toward minus infinity */
 130        set_float_rounding_mode(float_round_down, &env->fp_status);
 131        break;
 132    case FPCR_RND_P: /* round toward positive infinity */
 133        set_float_rounding_mode(float_round_up, &env->fp_status);
 134        break;
 135    }
 136}
 137
 138void cpu_m68k_restore_fp_status(CPUM68KState *env)
 139{
 140    if (m68k_feature(env, M68K_FEATURE_CF_FPU)) {
 141        cf_restore_precision_mode(env);
 142    } else {
 143        m68k_restore_precision_mode(env);
 144    }
 145    restore_rounding_mode(env);
 146}
 147
 148void cpu_m68k_set_fpcr(CPUM68KState *env, uint32_t val)
 149{
 150    env->fpcr = val & 0xffff;
 151    cpu_m68k_restore_fp_status(env);
 152}
 153
 154void HELPER(fitrunc)(CPUM68KState *env, FPReg *res, FPReg *val)
 155{
 156    FloatRoundMode rounding_mode = get_float_rounding_mode(&env->fp_status);
 157    set_float_rounding_mode(float_round_to_zero, &env->fp_status);
 158    res->d = floatx80_round_to_int(val->d, &env->fp_status);
 159    set_float_rounding_mode(rounding_mode, &env->fp_status);
 160}
 161
 162void HELPER(set_fpcr)(CPUM68KState *env, uint32_t val)
 163{
 164    cpu_m68k_set_fpcr(env, val);
 165}
 166
 167#define PREC_BEGIN(prec)                                        \
 168    do {                                                        \
 169        FloatX80RoundPrec old =                                 \
 170            get_floatx80_rounding_precision(&env->fp_status);   \
 171        set_floatx80_rounding_precision(prec, &env->fp_status)  \
 172
 173#define PREC_END()                                              \
 174        set_floatx80_rounding_precision(old, &env->fp_status);  \
 175    } while (0)
 176
 177void HELPER(fsround)(CPUM68KState *env, FPReg *res, FPReg *val)
 178{
 179    PREC_BEGIN(floatx80_precision_s);
 180    res->d = floatx80_round(val->d, &env->fp_status);
 181    PREC_END();
 182}
 183
 184void HELPER(fdround)(CPUM68KState *env, FPReg *res, FPReg *val)
 185{
 186    PREC_BEGIN(floatx80_precision_d);
 187    res->d = floatx80_round(val->d, &env->fp_status);
 188    PREC_END();
 189}
 190
 191void HELPER(fsqrt)(CPUM68KState *env, FPReg *res, FPReg *val)
 192{
 193    res->d = floatx80_sqrt(val->d, &env->fp_status);
 194}
 195
 196void HELPER(fssqrt)(CPUM68KState *env, FPReg *res, FPReg *val)
 197{
 198    PREC_BEGIN(floatx80_precision_s);
 199    res->d = floatx80_sqrt(val->d, &env->fp_status);
 200    PREC_END();
 201}
 202
 203void HELPER(fdsqrt)(CPUM68KState *env, FPReg *res, FPReg *val)
 204{
 205    PREC_BEGIN(floatx80_precision_d);
 206    res->d = floatx80_sqrt(val->d, &env->fp_status);
 207    PREC_END();
 208}
 209
 210void HELPER(fabs)(CPUM68KState *env, FPReg *res, FPReg *val)
 211{
 212    res->d = floatx80_round(floatx80_abs(val->d), &env->fp_status);
 213}
 214
 215void HELPER(fsabs)(CPUM68KState *env, FPReg *res, FPReg *val)
 216{
 217    PREC_BEGIN(floatx80_precision_s);
 218    res->d = floatx80_round(floatx80_abs(val->d), &env->fp_status);
 219    PREC_END();
 220}
 221
 222void HELPER(fdabs)(CPUM68KState *env, FPReg *res, FPReg *val)
 223{
 224    PREC_BEGIN(floatx80_precision_d);
 225    res->d = floatx80_round(floatx80_abs(val->d), &env->fp_status);
 226    PREC_END();
 227}
 228
 229void HELPER(fneg)(CPUM68KState *env, FPReg *res, FPReg *val)
 230{
 231    res->d = floatx80_round(floatx80_chs(val->d), &env->fp_status);
 232}
 233
 234void HELPER(fsneg)(CPUM68KState *env, FPReg *res, FPReg *val)
 235{
 236    PREC_BEGIN(floatx80_precision_s);
 237    res->d = floatx80_round(floatx80_chs(val->d), &env->fp_status);
 238    PREC_END();
 239}
 240
 241void HELPER(fdneg)(CPUM68KState *env, FPReg *res, FPReg *val)
 242{
 243    PREC_BEGIN(floatx80_precision_d);
 244    res->d = floatx80_round(floatx80_chs(val->d), &env->fp_status);
 245    PREC_END();
 246}
 247
 248void HELPER(fadd)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 249{
 250    res->d = floatx80_add(val0->d, val1->d, &env->fp_status);
 251}
 252
 253void HELPER(fsadd)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 254{
 255    PREC_BEGIN(floatx80_precision_s);
 256    res->d = floatx80_add(val0->d, val1->d, &env->fp_status);
 257    PREC_END();
 258}
 259
 260void HELPER(fdadd)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 261{
 262    PREC_BEGIN(floatx80_precision_d);
 263    res->d = floatx80_add(val0->d, val1->d, &env->fp_status);
 264    PREC_END();
 265}
 266
 267void HELPER(fsub)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 268{
 269    res->d = floatx80_sub(val1->d, val0->d, &env->fp_status);
 270}
 271
 272void HELPER(fssub)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 273{
 274    PREC_BEGIN(floatx80_precision_s);
 275    res->d = floatx80_sub(val1->d, val0->d, &env->fp_status);
 276    PREC_END();
 277}
 278
 279void HELPER(fdsub)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 280{
 281    PREC_BEGIN(floatx80_precision_d);
 282    res->d = floatx80_sub(val1->d, val0->d, &env->fp_status);
 283    PREC_END();
 284}
 285
 286void HELPER(fmul)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 287{
 288    res->d = floatx80_mul(val0->d, val1->d, &env->fp_status);
 289}
 290
 291void HELPER(fsmul)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 292{
 293    PREC_BEGIN(floatx80_precision_s);
 294    res->d = floatx80_mul(val0->d, val1->d, &env->fp_status);
 295    PREC_END();
 296}
 297
 298void HELPER(fdmul)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 299{
 300    PREC_BEGIN(floatx80_precision_d);
 301    res->d = floatx80_mul(val0->d, val1->d, &env->fp_status);
 302    PREC_END();
 303}
 304
 305void HELPER(fsglmul)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 306{
 307    FloatRoundMode rounding_mode = get_float_rounding_mode(&env->fp_status);
 308    floatx80 a, b;
 309
 310    PREC_BEGIN(floatx80_precision_s);
 311    set_float_rounding_mode(float_round_to_zero, &env->fp_status);
 312    a = floatx80_round(val0->d, &env->fp_status);
 313    b = floatx80_round(val1->d, &env->fp_status);
 314    set_float_rounding_mode(rounding_mode, &env->fp_status);
 315    res->d = floatx80_mul(a, b, &env->fp_status);
 316    PREC_END();
 317}
 318
 319void HELPER(fdiv)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 320{
 321    res->d = floatx80_div(val1->d, val0->d, &env->fp_status);
 322}
 323
 324void HELPER(fsdiv)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 325{
 326    PREC_BEGIN(floatx80_precision_s);
 327    res->d = floatx80_div(val1->d, val0->d, &env->fp_status);
 328    PREC_END();
 329}
 330
 331void HELPER(fddiv)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 332{
 333    PREC_BEGIN(floatx80_precision_d);
 334    res->d = floatx80_div(val1->d, val0->d, &env->fp_status);
 335    PREC_END();
 336}
 337
 338void HELPER(fsgldiv)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 339{
 340    FloatRoundMode rounding_mode = get_float_rounding_mode(&env->fp_status);
 341    floatx80 a, b;
 342
 343    PREC_BEGIN(floatx80_precision_s);
 344    set_float_rounding_mode(float_round_to_zero, &env->fp_status);
 345    a = floatx80_round(val1->d, &env->fp_status);
 346    b = floatx80_round(val0->d, &env->fp_status);
 347    set_float_rounding_mode(rounding_mode, &env->fp_status);
 348    res->d = floatx80_div(a, b, &env->fp_status);
 349    PREC_END();
 350}
 351
 352static int float_comp_to_cc(FloatRelation float_compare)
 353{
 354    switch (float_compare) {
 355    case float_relation_equal:
 356        return FPSR_CC_Z;
 357    case float_relation_less:
 358        return FPSR_CC_N;
 359    case float_relation_unordered:
 360        return FPSR_CC_A;
 361    case float_relation_greater:
 362        return 0;
 363    default:
 364        g_assert_not_reached();
 365    }
 366}
 367
 368void HELPER(fcmp)(CPUM68KState *env, FPReg *val0, FPReg *val1)
 369{
 370    FloatRelation float_compare;
 371
 372    float_compare = floatx80_compare(val1->d, val0->d, &env->fp_status);
 373    env->fpsr = (env->fpsr & ~FPSR_CC_MASK) | float_comp_to_cc(float_compare);
 374}
 375
 376void HELPER(ftst)(CPUM68KState *env, FPReg *val)
 377{
 378    uint32_t cc = 0;
 379
 380    if (floatx80_is_neg(val->d)) {
 381        cc |= FPSR_CC_N;
 382    }
 383
 384    if (floatx80_is_any_nan(val->d)) {
 385        cc |= FPSR_CC_A;
 386    } else if (floatx80_is_infinity(val->d)) {
 387        cc |= FPSR_CC_I;
 388    } else if (floatx80_is_zero(val->d)) {
 389        cc |= FPSR_CC_Z;
 390    }
 391    env->fpsr = (env->fpsr & ~FPSR_CC_MASK) | cc;
 392}
 393
 394void HELPER(fconst)(CPUM68KState *env, FPReg *val, uint32_t offset)
 395{
 396    val->d = fpu_rom[offset];
 397}
 398
 399typedef int (*float_access)(CPUM68KState *env, uint32_t addr, FPReg *fp,
 400                            uintptr_t ra);
 401
 402static uint32_t fmovem_predec(CPUM68KState *env, uint32_t addr, uint32_t mask,
 403                              float_access access_fn)
 404{
 405    uintptr_t ra = GETPC();
 406    int i, size;
 407
 408    for (i = 7; i >= 0; i--, mask <<= 1) {
 409        if (mask & 0x80) {
 410            size = access_fn(env, addr, &env->fregs[i], ra);
 411            if ((mask & 0xff) != 0x80) {
 412                addr -= size;
 413            }
 414        }
 415    }
 416
 417    return addr;
 418}
 419
 420static uint32_t fmovem_postinc(CPUM68KState *env, uint32_t addr, uint32_t mask,
 421                               float_access access_fn)
 422{
 423    uintptr_t ra = GETPC();
 424    int i, size;
 425
 426    for (i = 0; i < 8; i++, mask <<= 1) {
 427        if (mask & 0x80) {
 428            size = access_fn(env, addr, &env->fregs[i], ra);
 429            addr += size;
 430        }
 431    }
 432
 433    return addr;
 434}
 435
 436static int cpu_ld_floatx80_ra(CPUM68KState *env, uint32_t addr, FPReg *fp,
 437                              uintptr_t ra)
 438{
 439    uint32_t high;
 440    uint64_t low;
 441
 442    high = cpu_ldl_data_ra(env, addr, ra);
 443    low = cpu_ldq_data_ra(env, addr + 4, ra);
 444
 445    fp->l.upper = high >> 16;
 446    fp->l.lower = low;
 447
 448    return 12;
 449}
 450
 451static int cpu_st_floatx80_ra(CPUM68KState *env, uint32_t addr, FPReg *fp,
 452                               uintptr_t ra)
 453{
 454    cpu_stl_data_ra(env, addr, fp->l.upper << 16, ra);
 455    cpu_stq_data_ra(env, addr + 4, fp->l.lower, ra);
 456
 457    return 12;
 458}
 459
 460static int cpu_ld_float64_ra(CPUM68KState *env, uint32_t addr, FPReg *fp,
 461                             uintptr_t ra)
 462{
 463    uint64_t val;
 464
 465    val = cpu_ldq_data_ra(env, addr, ra);
 466    fp->d = float64_to_floatx80(*(float64 *)&val, &env->fp_status);
 467
 468    return 8;
 469}
 470
 471static int cpu_st_float64_ra(CPUM68KState *env, uint32_t addr, FPReg *fp,
 472                             uintptr_t ra)
 473{
 474    float64 val;
 475
 476    val = floatx80_to_float64(fp->d, &env->fp_status);
 477    cpu_stq_data_ra(env, addr, *(uint64_t *)&val, ra);
 478
 479    return 8;
 480}
 481
 482uint32_t HELPER(fmovemx_st_predec)(CPUM68KState *env, uint32_t addr,
 483                                   uint32_t mask)
 484{
 485    return fmovem_predec(env, addr, mask, cpu_st_floatx80_ra);
 486}
 487
 488uint32_t HELPER(fmovemx_st_postinc)(CPUM68KState *env, uint32_t addr,
 489                                    uint32_t mask)
 490{
 491    return fmovem_postinc(env, addr, mask, cpu_st_floatx80_ra);
 492}
 493
 494uint32_t HELPER(fmovemx_ld_postinc)(CPUM68KState *env, uint32_t addr,
 495                                    uint32_t mask)
 496{
 497    return fmovem_postinc(env, addr, mask, cpu_ld_floatx80_ra);
 498}
 499
 500uint32_t HELPER(fmovemd_st_predec)(CPUM68KState *env, uint32_t addr,
 501                                   uint32_t mask)
 502{
 503    return fmovem_predec(env, addr, mask, cpu_st_float64_ra);
 504}
 505
 506uint32_t HELPER(fmovemd_st_postinc)(CPUM68KState *env, uint32_t addr,
 507                                    uint32_t mask)
 508{
 509    return fmovem_postinc(env, addr, mask, cpu_st_float64_ra);
 510}
 511
 512uint32_t HELPER(fmovemd_ld_postinc)(CPUM68KState *env, uint32_t addr,
 513                                    uint32_t mask)
 514{
 515    return fmovem_postinc(env, addr, mask, cpu_ld_float64_ra);
 516}
 517
 518static void make_quotient(CPUM68KState *env, int sign, uint32_t quotient)
 519{
 520    quotient = (sign << 7) | (quotient & 0x7f);
 521    env->fpsr = (env->fpsr & ~FPSR_QT_MASK) | (quotient << FPSR_QT_SHIFT);
 522}
 523
 524void HELPER(fmod)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 525{
 526    uint64_t quotient;
 527    int sign = extractFloatx80Sign(val1->d) ^ extractFloatx80Sign(val0->d);
 528
 529    res->d = floatx80_modrem(val1->d, val0->d, true, &quotient,
 530                             &env->fp_status);
 531
 532    if (floatx80_is_any_nan(res->d)) {
 533        return;
 534    }
 535
 536    make_quotient(env, sign, quotient);
 537}
 538
 539void HELPER(frem)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 540{
 541    FPReg fp_quot;
 542    floatx80 fp_rem;
 543
 544    fp_rem = floatx80_rem(val1->d, val0->d, &env->fp_status);
 545    if (!floatx80_is_any_nan(fp_rem)) {
 546        float_status fp_status = { };
 547        uint32_t quotient;
 548        int sign;
 549
 550        /* Calculate quotient directly using round to nearest mode */
 551        set_float_rounding_mode(float_round_nearest_even, &fp_status);
 552        set_floatx80_rounding_precision(
 553            get_floatx80_rounding_precision(&env->fp_status), &fp_status);
 554        fp_quot.d = floatx80_div(val1->d, val0->d, &fp_status);
 555
 556        sign = extractFloatx80Sign(fp_quot.d);
 557        quotient = floatx80_to_int32(floatx80_abs(fp_quot.d), &env->fp_status);
 558        make_quotient(env, sign, quotient);
 559    }
 560
 561    res->d = fp_rem;
 562}
 563
 564void HELPER(fgetexp)(CPUM68KState *env, FPReg *res, FPReg *val)
 565{
 566    res->d = floatx80_getexp(val->d, &env->fp_status);
 567}
 568
 569void HELPER(fgetman)(CPUM68KState *env, FPReg *res, FPReg *val)
 570{
 571    res->d = floatx80_getman(val->d, &env->fp_status);
 572}
 573
 574void HELPER(fscale)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 575{
 576    res->d = floatx80_scale(val1->d, val0->d, &env->fp_status);
 577}
 578
 579void HELPER(flognp1)(CPUM68KState *env, FPReg *res, FPReg *val)
 580{
 581    res->d = floatx80_lognp1(val->d, &env->fp_status);
 582}
 583
 584void HELPER(flogn)(CPUM68KState *env, FPReg *res, FPReg *val)
 585{
 586    res->d = floatx80_logn(val->d, &env->fp_status);
 587}
 588
 589void HELPER(flog10)(CPUM68KState *env, FPReg *res, FPReg *val)
 590{
 591    res->d = floatx80_log10(val->d, &env->fp_status);
 592}
 593
 594void HELPER(flog2)(CPUM68KState *env, FPReg *res, FPReg *val)
 595{
 596    res->d = floatx80_log2(val->d, &env->fp_status);
 597}
 598
 599void HELPER(fetox)(CPUM68KState *env, FPReg *res, FPReg *val)
 600{
 601    res->d = floatx80_etox(val->d, &env->fp_status);
 602}
 603
 604void HELPER(ftwotox)(CPUM68KState *env, FPReg *res, FPReg *val)
 605{
 606    res->d = floatx80_twotox(val->d, &env->fp_status);
 607}
 608
 609void HELPER(ftentox)(CPUM68KState *env, FPReg *res, FPReg *val)
 610{
 611    res->d = floatx80_tentox(val->d, &env->fp_status);
 612}
 613
 614void HELPER(ftan)(CPUM68KState *env, FPReg *res, FPReg *val)
 615{
 616    res->d = floatx80_tan(val->d, &env->fp_status);
 617}
 618
 619void HELPER(fsin)(CPUM68KState *env, FPReg *res, FPReg *val)
 620{
 621    res->d = floatx80_sin(val->d, &env->fp_status);
 622}
 623
 624void HELPER(fcos)(CPUM68KState *env, FPReg *res, FPReg *val)
 625{
 626    res->d = floatx80_cos(val->d, &env->fp_status);
 627}
 628
 629void HELPER(fsincos)(CPUM68KState *env, FPReg *res0, FPReg *res1, FPReg *val)
 630{
 631    floatx80 a = val->d;
 632    /*
 633     * If res0 and res1 specify the same floating-point data register,
 634     * the sine result is stored in the register, and the cosine
 635     * result is discarded.
 636     */
 637    res1->d = floatx80_cos(a, &env->fp_status);
 638    res0->d = floatx80_sin(a, &env->fp_status);
 639}
 640
 641void HELPER(fatan)(CPUM68KState *env, FPReg *res, FPReg *val)
 642{
 643    res->d = floatx80_atan(val->d, &env->fp_status);
 644}
 645
 646void HELPER(fasin)(CPUM68KState *env, FPReg *res, FPReg *val)
 647{
 648    res->d = floatx80_asin(val->d, &env->fp_status);
 649}
 650
 651void HELPER(facos)(CPUM68KState *env, FPReg *res, FPReg *val)
 652{
 653    res->d = floatx80_acos(val->d, &env->fp_status);
 654}
 655
 656void HELPER(fatanh)(CPUM68KState *env, FPReg *res, FPReg *val)
 657{
 658    res->d = floatx80_atanh(val->d, &env->fp_status);
 659}
 660
 661void HELPER(fetoxm1)(CPUM68KState *env, FPReg *res, FPReg *val)
 662{
 663    res->d = floatx80_etoxm1(val->d, &env->fp_status);
 664}
 665
 666void HELPER(ftanh)(CPUM68KState *env, FPReg *res, FPReg *val)
 667{
 668    res->d = floatx80_tanh(val->d, &env->fp_status);
 669}
 670
 671void HELPER(fsinh)(CPUM68KState *env, FPReg *res, FPReg *val)
 672{
 673    res->d = floatx80_sinh(val->d, &env->fp_status);
 674}
 675
 676void HELPER(fcosh)(CPUM68KState *env, FPReg *res, FPReg *val)
 677{
 678    res->d = floatx80_cosh(val->d, &env->fp_status);
 679}
 680