1c9274b6bSCho, Yu-Chen /* 2c9274b6bSCho, Yu-Chen * S/390 FPU helper routines 3c9274b6bSCho, Yu-Chen * 4c9274b6bSCho, Yu-Chen * Copyright (c) 2009 Ulrich Hecht 5c9274b6bSCho, Yu-Chen * Copyright (c) 2009 Alexander Graf 6c9274b6bSCho, Yu-Chen * 7c9274b6bSCho, Yu-Chen * This library is free software; you can redistribute it and/or 8c9274b6bSCho, Yu-Chen * modify it under the terms of the GNU Lesser General Public 9c9274b6bSCho, Yu-Chen * License as published by the Free Software Foundation; either 10c9274b6bSCho, Yu-Chen * version 2.1 of the License, or (at your option) any later version. 11c9274b6bSCho, Yu-Chen * 12c9274b6bSCho, Yu-Chen * This library is distributed in the hope that it will be useful, 13c9274b6bSCho, Yu-Chen * but WITHOUT ANY WARRANTY; without even the implied warranty of 14c9274b6bSCho, Yu-Chen * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15c9274b6bSCho, Yu-Chen * Lesser General Public License for more details. 16c9274b6bSCho, Yu-Chen * 17c9274b6bSCho, Yu-Chen * You should have received a copy of the GNU Lesser General Public 18c9274b6bSCho, Yu-Chen * License along with this library; if not, see <http://www.gnu.org/licenses/>. 19c9274b6bSCho, Yu-Chen */ 20c9274b6bSCho, Yu-Chen 21c9274b6bSCho, Yu-Chen #include "qemu/osdep.h" 22c9274b6bSCho, Yu-Chen #include "cpu.h" 23c9274b6bSCho, Yu-Chen #include "s390x-internal.h" 24c9274b6bSCho, Yu-Chen #include "tcg_s390x.h" 25c9274b6bSCho, Yu-Chen #include "exec/exec-all.h" 26c9274b6bSCho, Yu-Chen #include "exec/cpu_ldst.h" 27c9274b6bSCho, Yu-Chen #include "exec/helper-proto.h" 28c9274b6bSCho, Yu-Chen #include "fpu/softfloat.h" 29c9274b6bSCho, Yu-Chen 30c9274b6bSCho, Yu-Chen /* #define DEBUG_HELPER */ 31c9274b6bSCho, Yu-Chen #ifdef DEBUG_HELPER 32c9274b6bSCho, Yu-Chen #define HELPER_LOG(x...) qemu_log(x) 33c9274b6bSCho, Yu-Chen #else 34c9274b6bSCho, Yu-Chen #define HELPER_LOG(x...) 35c9274b6bSCho, Yu-Chen #endif 36c9274b6bSCho, Yu-Chen 37ee5e866fSRichard Henderson static inline Int128 RET128(float128 f) 38ee5e866fSRichard Henderson { 39ee5e866fSRichard Henderson return int128_make128(f.low, f.high); 40ee5e866fSRichard Henderson } 41c9274b6bSCho, Yu-Chen 422b91240fSRichard Henderson static inline float128 ARG128(Int128 i) 432b91240fSRichard Henderson { 442b91240fSRichard Henderson return make_float128(int128_gethi(i), int128_getlo(i)); 452b91240fSRichard Henderson } 462b91240fSRichard Henderson 47c9274b6bSCho, Yu-Chen uint8_t s390_softfloat_exc_to_ieee(unsigned int exc) 48c9274b6bSCho, Yu-Chen { 49c9274b6bSCho, Yu-Chen uint8_t s390_exc = 0; 50c9274b6bSCho, Yu-Chen 51c9274b6bSCho, Yu-Chen s390_exc |= (exc & float_flag_invalid) ? S390_IEEE_MASK_INVALID : 0; 52c9274b6bSCho, Yu-Chen s390_exc |= (exc & float_flag_divbyzero) ? S390_IEEE_MASK_DIVBYZERO : 0; 53c9274b6bSCho, Yu-Chen s390_exc |= (exc & float_flag_overflow) ? S390_IEEE_MASK_OVERFLOW : 0; 54c9274b6bSCho, Yu-Chen s390_exc |= (exc & float_flag_underflow) ? S390_IEEE_MASK_UNDERFLOW : 0; 55c9274b6bSCho, Yu-Chen s390_exc |= (exc & float_flag_inexact) ? S390_IEEE_MASK_INEXACT : 0; 56c9274b6bSCho, Yu-Chen 57c9274b6bSCho, Yu-Chen return s390_exc; 58c9274b6bSCho, Yu-Chen } 59c9274b6bSCho, Yu-Chen 60c9274b6bSCho, Yu-Chen /* Should be called after any operation that may raise IEEE exceptions. */ 61c9274b6bSCho, Yu-Chen static void handle_exceptions(CPUS390XState *env, bool XxC, uintptr_t retaddr) 62c9274b6bSCho, Yu-Chen { 63c9274b6bSCho, Yu-Chen unsigned s390_exc, qemu_exc; 64c9274b6bSCho, Yu-Chen 65c9274b6bSCho, Yu-Chen /* Get the exceptions raised by the current operation. Reset the 66c9274b6bSCho, Yu-Chen fpu_status contents so that the next operation has a clean slate. */ 67c9274b6bSCho, Yu-Chen qemu_exc = env->fpu_status.float_exception_flags; 68c9274b6bSCho, Yu-Chen if (qemu_exc == 0) { 69c9274b6bSCho, Yu-Chen return; 70c9274b6bSCho, Yu-Chen } 71c9274b6bSCho, Yu-Chen env->fpu_status.float_exception_flags = 0; 72c9274b6bSCho, Yu-Chen s390_exc = s390_softfloat_exc_to_ieee(qemu_exc); 73c9274b6bSCho, Yu-Chen 74c9274b6bSCho, Yu-Chen /* 75c9274b6bSCho, Yu-Chen * IEEE-Underflow exception recognition exists if a tininess condition 76c9274b6bSCho, Yu-Chen * (underflow) exists and 77c9274b6bSCho, Yu-Chen * - The mask bit in the FPC is zero and the result is inexact 78c9274b6bSCho, Yu-Chen * - The mask bit in the FPC is one 79c9274b6bSCho, Yu-Chen * So tininess conditions that are not inexact don't trigger any 80c9274b6bSCho, Yu-Chen * underflow action in case the mask bit is not one. 81c9274b6bSCho, Yu-Chen */ 82c9274b6bSCho, Yu-Chen if (!(s390_exc & S390_IEEE_MASK_INEXACT) && 83c9274b6bSCho, Yu-Chen !((env->fpc >> 24) & S390_IEEE_MASK_UNDERFLOW)) { 84c9274b6bSCho, Yu-Chen s390_exc &= ~S390_IEEE_MASK_UNDERFLOW; 85c9274b6bSCho, Yu-Chen } 86c9274b6bSCho, Yu-Chen 87c9274b6bSCho, Yu-Chen /* 88c9274b6bSCho, Yu-Chen * FIXME: 89c9274b6bSCho, Yu-Chen * 1. Right now, all inexact conditions are inidicated as 90c9274b6bSCho, Yu-Chen * "truncated" (0) and never as "incremented" (1) in the DXC. 91c9274b6bSCho, Yu-Chen * 2. Only traps due to invalid/divbyzero are suppressing. Other traps 92c9274b6bSCho, Yu-Chen * are completing, meaning the target register has to be written! 93c9274b6bSCho, Yu-Chen * This, however will mean that we have to write the register before 94c9274b6bSCho, Yu-Chen * triggering the trap - impossible right now. 95c9274b6bSCho, Yu-Chen */ 96c9274b6bSCho, Yu-Chen 97c9274b6bSCho, Yu-Chen /* 98c9274b6bSCho, Yu-Chen * invalid/divbyzero cannot coexist with other conditions. 99c9274b6bSCho, Yu-Chen * overflow/underflow however can coexist with inexact, we have to 10044ee69eaSThomas Huth * handle it separately. 101c9274b6bSCho, Yu-Chen */ 102c9274b6bSCho, Yu-Chen if (s390_exc & ~S390_IEEE_MASK_INEXACT) { 103c9274b6bSCho, Yu-Chen if (s390_exc & ~S390_IEEE_MASK_INEXACT & env->fpc >> 24) { 104c9274b6bSCho, Yu-Chen /* trap condition - inexact reported along */ 105c9274b6bSCho, Yu-Chen tcg_s390_data_exception(env, s390_exc, retaddr); 106c9274b6bSCho, Yu-Chen } 107c9274b6bSCho, Yu-Chen /* nontrap condition - inexact handled differently */ 108c9274b6bSCho, Yu-Chen env->fpc |= (s390_exc & ~S390_IEEE_MASK_INEXACT) << 16; 109c9274b6bSCho, Yu-Chen } 110c9274b6bSCho, Yu-Chen 111c9274b6bSCho, Yu-Chen /* inexact handling */ 112c9274b6bSCho, Yu-Chen if (s390_exc & S390_IEEE_MASK_INEXACT && !XxC) { 113c9274b6bSCho, Yu-Chen /* trap condition - overflow/underflow _not_ reported along */ 114c9274b6bSCho, Yu-Chen if (s390_exc & S390_IEEE_MASK_INEXACT & env->fpc >> 24) { 115c9274b6bSCho, Yu-Chen tcg_s390_data_exception(env, s390_exc & S390_IEEE_MASK_INEXACT, 116c9274b6bSCho, Yu-Chen retaddr); 117c9274b6bSCho, Yu-Chen } 118c9274b6bSCho, Yu-Chen /* nontrap condition */ 119c9274b6bSCho, Yu-Chen env->fpc |= (s390_exc & S390_IEEE_MASK_INEXACT) << 16; 120c9274b6bSCho, Yu-Chen } 121c9274b6bSCho, Yu-Chen } 122c9274b6bSCho, Yu-Chen 123c9274b6bSCho, Yu-Chen int float_comp_to_cc(CPUS390XState *env, FloatRelation float_compare) 124c9274b6bSCho, Yu-Chen { 125c9274b6bSCho, Yu-Chen switch (float_compare) { 126c9274b6bSCho, Yu-Chen case float_relation_equal: 127c9274b6bSCho, Yu-Chen return 0; 128c9274b6bSCho, Yu-Chen case float_relation_less: 129c9274b6bSCho, Yu-Chen return 1; 130c9274b6bSCho, Yu-Chen case float_relation_greater: 131c9274b6bSCho, Yu-Chen return 2; 132c9274b6bSCho, Yu-Chen case float_relation_unordered: 133c9274b6bSCho, Yu-Chen return 3; 134c9274b6bSCho, Yu-Chen default: 135c9274b6bSCho, Yu-Chen cpu_abort(env_cpu(env), "unknown return value for float compare\n"); 136c9274b6bSCho, Yu-Chen } 137c9274b6bSCho, Yu-Chen } 138c9274b6bSCho, Yu-Chen 139c9274b6bSCho, Yu-Chen /* condition codes for unary FP ops */ 140c9274b6bSCho, Yu-Chen uint32_t set_cc_nz_f32(float32 v) 141c9274b6bSCho, Yu-Chen { 142c9274b6bSCho, Yu-Chen if (float32_is_any_nan(v)) { 143c9274b6bSCho, Yu-Chen return 3; 144c9274b6bSCho, Yu-Chen } else if (float32_is_zero(v)) { 145c9274b6bSCho, Yu-Chen return 0; 146c9274b6bSCho, Yu-Chen } else if (float32_is_neg(v)) { 147c9274b6bSCho, Yu-Chen return 1; 148c9274b6bSCho, Yu-Chen } else { 149c9274b6bSCho, Yu-Chen return 2; 150c9274b6bSCho, Yu-Chen } 151c9274b6bSCho, Yu-Chen } 152c9274b6bSCho, Yu-Chen 153c9274b6bSCho, Yu-Chen uint32_t set_cc_nz_f64(float64 v) 154c9274b6bSCho, Yu-Chen { 155c9274b6bSCho, Yu-Chen if (float64_is_any_nan(v)) { 156c9274b6bSCho, Yu-Chen return 3; 157c9274b6bSCho, Yu-Chen } else if (float64_is_zero(v)) { 158c9274b6bSCho, Yu-Chen return 0; 159c9274b6bSCho, Yu-Chen } else if (float64_is_neg(v)) { 160c9274b6bSCho, Yu-Chen return 1; 161c9274b6bSCho, Yu-Chen } else { 162c9274b6bSCho, Yu-Chen return 2; 163c9274b6bSCho, Yu-Chen } 164c9274b6bSCho, Yu-Chen } 165c9274b6bSCho, Yu-Chen 166c9274b6bSCho, Yu-Chen uint32_t set_cc_nz_f128(float128 v) 167c9274b6bSCho, Yu-Chen { 168c9274b6bSCho, Yu-Chen if (float128_is_any_nan(v)) { 169c9274b6bSCho, Yu-Chen return 3; 170c9274b6bSCho, Yu-Chen } else if (float128_is_zero(v)) { 171c9274b6bSCho, Yu-Chen return 0; 172c9274b6bSCho, Yu-Chen } else if (float128_is_neg(v)) { 173c9274b6bSCho, Yu-Chen return 1; 174c9274b6bSCho, Yu-Chen } else { 175c9274b6bSCho, Yu-Chen return 2; 176c9274b6bSCho, Yu-Chen } 177c9274b6bSCho, Yu-Chen } 178c9274b6bSCho, Yu-Chen 179c9274b6bSCho, Yu-Chen /* condition codes for FP to integer conversion ops */ 180c9274b6bSCho, Yu-Chen static uint32_t set_cc_conv_f32(float32 v, float_status *stat) 181c9274b6bSCho, Yu-Chen { 182c9274b6bSCho, Yu-Chen if (stat->float_exception_flags & float_flag_invalid) { 183c9274b6bSCho, Yu-Chen return 3; 184c9274b6bSCho, Yu-Chen } else { 185c9274b6bSCho, Yu-Chen return set_cc_nz_f32(v); 186c9274b6bSCho, Yu-Chen } 187c9274b6bSCho, Yu-Chen } 188c9274b6bSCho, Yu-Chen 189c9274b6bSCho, Yu-Chen static uint32_t set_cc_conv_f64(float64 v, float_status *stat) 190c9274b6bSCho, Yu-Chen { 191c9274b6bSCho, Yu-Chen if (stat->float_exception_flags & float_flag_invalid) { 192c9274b6bSCho, Yu-Chen return 3; 193c9274b6bSCho, Yu-Chen } else { 194c9274b6bSCho, Yu-Chen return set_cc_nz_f64(v); 195c9274b6bSCho, Yu-Chen } 196c9274b6bSCho, Yu-Chen } 197c9274b6bSCho, Yu-Chen 198c9274b6bSCho, Yu-Chen static uint32_t set_cc_conv_f128(float128 v, float_status *stat) 199c9274b6bSCho, Yu-Chen { 200c9274b6bSCho, Yu-Chen if (stat->float_exception_flags & float_flag_invalid) { 201c9274b6bSCho, Yu-Chen return 3; 202c9274b6bSCho, Yu-Chen } else { 203c9274b6bSCho, Yu-Chen return set_cc_nz_f128(v); 204c9274b6bSCho, Yu-Chen } 205c9274b6bSCho, Yu-Chen } 206c9274b6bSCho, Yu-Chen 207c9274b6bSCho, Yu-Chen static inline uint8_t round_from_m34(uint32_t m34) 208c9274b6bSCho, Yu-Chen { 209c9274b6bSCho, Yu-Chen return extract32(m34, 0, 4); 210c9274b6bSCho, Yu-Chen } 211c9274b6bSCho, Yu-Chen 212c9274b6bSCho, Yu-Chen static inline bool xxc_from_m34(uint32_t m34) 213c9274b6bSCho, Yu-Chen { 214c9274b6bSCho, Yu-Chen /* XxC is bit 1 of m4 */ 215c9274b6bSCho, Yu-Chen return extract32(m34, 4 + 3 - 1, 1); 216c9274b6bSCho, Yu-Chen } 217c9274b6bSCho, Yu-Chen 218c9274b6bSCho, Yu-Chen /* 32-bit FP addition */ 219c9274b6bSCho, Yu-Chen uint64_t HELPER(aeb)(CPUS390XState *env, uint64_t f1, uint64_t f2) 220c9274b6bSCho, Yu-Chen { 221c9274b6bSCho, Yu-Chen float32 ret = float32_add(f1, f2, &env->fpu_status); 222c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 223c9274b6bSCho, Yu-Chen return ret; 224c9274b6bSCho, Yu-Chen } 225c9274b6bSCho, Yu-Chen 226c9274b6bSCho, Yu-Chen /* 64-bit FP addition */ 227c9274b6bSCho, Yu-Chen uint64_t HELPER(adb)(CPUS390XState *env, uint64_t f1, uint64_t f2) 228c9274b6bSCho, Yu-Chen { 229c9274b6bSCho, Yu-Chen float64 ret = float64_add(f1, f2, &env->fpu_status); 230c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 231c9274b6bSCho, Yu-Chen return ret; 232c9274b6bSCho, Yu-Chen } 233c9274b6bSCho, Yu-Chen 234c9274b6bSCho, Yu-Chen /* 128-bit FP addition */ 2352b91240fSRichard Henderson Int128 HELPER(axb)(CPUS390XState *env, Int128 a, Int128 b) 236c9274b6bSCho, Yu-Chen { 2372b91240fSRichard Henderson float128 ret = float128_add(ARG128(a), ARG128(b), &env->fpu_status); 238c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 239c9274b6bSCho, Yu-Chen return RET128(ret); 240c9274b6bSCho, Yu-Chen } 241c9274b6bSCho, Yu-Chen 242c9274b6bSCho, Yu-Chen /* 32-bit FP subtraction */ 243c9274b6bSCho, Yu-Chen uint64_t HELPER(seb)(CPUS390XState *env, uint64_t f1, uint64_t f2) 244c9274b6bSCho, Yu-Chen { 245c9274b6bSCho, Yu-Chen float32 ret = float32_sub(f1, f2, &env->fpu_status); 246c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 247c9274b6bSCho, Yu-Chen return ret; 248c9274b6bSCho, Yu-Chen } 249c9274b6bSCho, Yu-Chen 250c9274b6bSCho, Yu-Chen /* 64-bit FP subtraction */ 251c9274b6bSCho, Yu-Chen uint64_t HELPER(sdb)(CPUS390XState *env, uint64_t f1, uint64_t f2) 252c9274b6bSCho, Yu-Chen { 253c9274b6bSCho, Yu-Chen float64 ret = float64_sub(f1, f2, &env->fpu_status); 254c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 255c9274b6bSCho, Yu-Chen return ret; 256c9274b6bSCho, Yu-Chen } 257c9274b6bSCho, Yu-Chen 258c9274b6bSCho, Yu-Chen /* 128-bit FP subtraction */ 2592b91240fSRichard Henderson Int128 HELPER(sxb)(CPUS390XState *env, Int128 a, Int128 b) 260c9274b6bSCho, Yu-Chen { 2612b91240fSRichard Henderson float128 ret = float128_sub(ARG128(a), ARG128(b), &env->fpu_status); 262c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 263c9274b6bSCho, Yu-Chen return RET128(ret); 264c9274b6bSCho, Yu-Chen } 265c9274b6bSCho, Yu-Chen 266c9274b6bSCho, Yu-Chen /* 32-bit FP division */ 267c9274b6bSCho, Yu-Chen uint64_t HELPER(deb)(CPUS390XState *env, uint64_t f1, uint64_t f2) 268c9274b6bSCho, Yu-Chen { 269c9274b6bSCho, Yu-Chen float32 ret = float32_div(f1, f2, &env->fpu_status); 270c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 271c9274b6bSCho, Yu-Chen return ret; 272c9274b6bSCho, Yu-Chen } 273c9274b6bSCho, Yu-Chen 274c9274b6bSCho, Yu-Chen /* 64-bit FP division */ 275c9274b6bSCho, Yu-Chen uint64_t HELPER(ddb)(CPUS390XState *env, uint64_t f1, uint64_t f2) 276c9274b6bSCho, Yu-Chen { 277c9274b6bSCho, Yu-Chen float64 ret = float64_div(f1, f2, &env->fpu_status); 278c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 279c9274b6bSCho, Yu-Chen return ret; 280c9274b6bSCho, Yu-Chen } 281c9274b6bSCho, Yu-Chen 282c9274b6bSCho, Yu-Chen /* 128-bit FP division */ 2832b91240fSRichard Henderson Int128 HELPER(dxb)(CPUS390XState *env, Int128 a, Int128 b) 284c9274b6bSCho, Yu-Chen { 2852b91240fSRichard Henderson float128 ret = float128_div(ARG128(a), ARG128(b), &env->fpu_status); 286c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 287c9274b6bSCho, Yu-Chen return RET128(ret); 288c9274b6bSCho, Yu-Chen } 289c9274b6bSCho, Yu-Chen 290c9274b6bSCho, Yu-Chen /* 32-bit FP multiplication */ 291c9274b6bSCho, Yu-Chen uint64_t HELPER(meeb)(CPUS390XState *env, uint64_t f1, uint64_t f2) 292c9274b6bSCho, Yu-Chen { 293c9274b6bSCho, Yu-Chen float32 ret = float32_mul(f1, f2, &env->fpu_status); 294c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 295c9274b6bSCho, Yu-Chen return ret; 296c9274b6bSCho, Yu-Chen } 297c9274b6bSCho, Yu-Chen 298c9274b6bSCho, Yu-Chen /* 64-bit FP multiplication */ 299c9274b6bSCho, Yu-Chen uint64_t HELPER(mdb)(CPUS390XState *env, uint64_t f1, uint64_t f2) 300c9274b6bSCho, Yu-Chen { 301c9274b6bSCho, Yu-Chen float64 ret = float64_mul(f1, f2, &env->fpu_status); 302c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 303c9274b6bSCho, Yu-Chen return ret; 304c9274b6bSCho, Yu-Chen } 305c9274b6bSCho, Yu-Chen 306c9274b6bSCho, Yu-Chen /* 64/32-bit FP multiplication */ 307c9274b6bSCho, Yu-Chen uint64_t HELPER(mdeb)(CPUS390XState *env, uint64_t f1, uint64_t f2) 308c9274b6bSCho, Yu-Chen { 309c9274b6bSCho, Yu-Chen float64 ret = float32_to_float64(f2, &env->fpu_status); 310c9274b6bSCho, Yu-Chen ret = float64_mul(f1, ret, &env->fpu_status); 311c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 312c9274b6bSCho, Yu-Chen return ret; 313c9274b6bSCho, Yu-Chen } 314c9274b6bSCho, Yu-Chen 315c9274b6bSCho, Yu-Chen /* 128-bit FP multiplication */ 3162b91240fSRichard Henderson Int128 HELPER(mxb)(CPUS390XState *env, Int128 a, Int128 b) 317c9274b6bSCho, Yu-Chen { 3182b91240fSRichard Henderson float128 ret = float128_mul(ARG128(a), ARG128(b), &env->fpu_status); 319c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 320c9274b6bSCho, Yu-Chen return RET128(ret); 321c9274b6bSCho, Yu-Chen } 322c9274b6bSCho, Yu-Chen 323c9274b6bSCho, Yu-Chen /* 128/64-bit FP multiplication */ 324*a7f4add7SIlya Leoshkevich Int128 HELPER(mxdb)(CPUS390XState *env, uint64_t f1, uint64_t f2) 325c9274b6bSCho, Yu-Chen { 326*a7f4add7SIlya Leoshkevich float128 f1_128 = float64_to_float128(f1, &env->fpu_status); 327c9274b6bSCho, Yu-Chen float128 ret = float64_to_float128(f2, &env->fpu_status); 328*a7f4add7SIlya Leoshkevich ret = float128_mul(f1_128, ret, &env->fpu_status); 329c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 330c9274b6bSCho, Yu-Chen return RET128(ret); 331c9274b6bSCho, Yu-Chen } 332c9274b6bSCho, Yu-Chen 333c9274b6bSCho, Yu-Chen /* convert 32-bit float to 64-bit float */ 334c9274b6bSCho, Yu-Chen uint64_t HELPER(ldeb)(CPUS390XState *env, uint64_t f2) 335c9274b6bSCho, Yu-Chen { 336c9274b6bSCho, Yu-Chen float64 ret = float32_to_float64(f2, &env->fpu_status); 337c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 338c9274b6bSCho, Yu-Chen return ret; 339c9274b6bSCho, Yu-Chen } 340c9274b6bSCho, Yu-Chen 341c9274b6bSCho, Yu-Chen /* convert 128-bit float to 64-bit float */ 3422b91240fSRichard Henderson uint64_t HELPER(ldxb)(CPUS390XState *env, Int128 a, uint32_t m34) 343c9274b6bSCho, Yu-Chen { 344c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 3452b91240fSRichard Henderson float64 ret = float128_to_float64(ARG128(a), &env->fpu_status); 346c9274b6bSCho, Yu-Chen 347c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 348c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 349c9274b6bSCho, Yu-Chen return ret; 350c9274b6bSCho, Yu-Chen } 351c9274b6bSCho, Yu-Chen 352c9274b6bSCho, Yu-Chen /* convert 64-bit float to 128-bit float */ 353ee5e866fSRichard Henderson Int128 HELPER(lxdb)(CPUS390XState *env, uint64_t f2) 354c9274b6bSCho, Yu-Chen { 355c9274b6bSCho, Yu-Chen float128 ret = float64_to_float128(f2, &env->fpu_status); 356c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 357c9274b6bSCho, Yu-Chen return RET128(ret); 358c9274b6bSCho, Yu-Chen } 359c9274b6bSCho, Yu-Chen 360c9274b6bSCho, Yu-Chen /* convert 32-bit float to 128-bit float */ 361ee5e866fSRichard Henderson Int128 HELPER(lxeb)(CPUS390XState *env, uint64_t f2) 362c9274b6bSCho, Yu-Chen { 363c9274b6bSCho, Yu-Chen float128 ret = float32_to_float128(f2, &env->fpu_status); 364c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 365c9274b6bSCho, Yu-Chen return RET128(ret); 366c9274b6bSCho, Yu-Chen } 367c9274b6bSCho, Yu-Chen 368c9274b6bSCho, Yu-Chen /* convert 64-bit float to 32-bit float */ 369c9274b6bSCho, Yu-Chen uint64_t HELPER(ledb)(CPUS390XState *env, uint64_t f2, uint32_t m34) 370c9274b6bSCho, Yu-Chen { 371c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 372c9274b6bSCho, Yu-Chen float32 ret = float64_to_float32(f2, &env->fpu_status); 373c9274b6bSCho, Yu-Chen 374c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 375c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 376c9274b6bSCho, Yu-Chen return ret; 377c9274b6bSCho, Yu-Chen } 378c9274b6bSCho, Yu-Chen 379c9274b6bSCho, Yu-Chen /* convert 128-bit float to 32-bit float */ 3802b91240fSRichard Henderson uint64_t HELPER(lexb)(CPUS390XState *env, Int128 a, uint32_t m34) 381c9274b6bSCho, Yu-Chen { 382c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 3832b91240fSRichard Henderson float32 ret = float128_to_float32(ARG128(a), &env->fpu_status); 384c9274b6bSCho, Yu-Chen 385c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 386c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 387c9274b6bSCho, Yu-Chen return ret; 388c9274b6bSCho, Yu-Chen } 389c9274b6bSCho, Yu-Chen 390c9274b6bSCho, Yu-Chen /* 32-bit FP compare */ 391c9274b6bSCho, Yu-Chen uint32_t HELPER(ceb)(CPUS390XState *env, uint64_t f1, uint64_t f2) 392c9274b6bSCho, Yu-Chen { 393c9274b6bSCho, Yu-Chen FloatRelation cmp = float32_compare_quiet(f1, f2, &env->fpu_status); 394c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 395c9274b6bSCho, Yu-Chen return float_comp_to_cc(env, cmp); 396c9274b6bSCho, Yu-Chen } 397c9274b6bSCho, Yu-Chen 398c9274b6bSCho, Yu-Chen /* 64-bit FP compare */ 399c9274b6bSCho, Yu-Chen uint32_t HELPER(cdb)(CPUS390XState *env, uint64_t f1, uint64_t f2) 400c9274b6bSCho, Yu-Chen { 401c9274b6bSCho, Yu-Chen FloatRelation cmp = float64_compare_quiet(f1, f2, &env->fpu_status); 402c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 403c9274b6bSCho, Yu-Chen return float_comp_to_cc(env, cmp); 404c9274b6bSCho, Yu-Chen } 405c9274b6bSCho, Yu-Chen 406c9274b6bSCho, Yu-Chen /* 128-bit FP compare */ 4072b91240fSRichard Henderson uint32_t HELPER(cxb)(CPUS390XState *env, Int128 a, Int128 b) 408c9274b6bSCho, Yu-Chen { 4092b91240fSRichard Henderson FloatRelation cmp = float128_compare_quiet(ARG128(a), ARG128(b), 410c9274b6bSCho, Yu-Chen &env->fpu_status); 411c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 412c9274b6bSCho, Yu-Chen return float_comp_to_cc(env, cmp); 413c9274b6bSCho, Yu-Chen } 414c9274b6bSCho, Yu-Chen 415c9274b6bSCho, Yu-Chen int s390_swap_bfp_rounding_mode(CPUS390XState *env, int m3) 416c9274b6bSCho, Yu-Chen { 417c9274b6bSCho, Yu-Chen int ret = env->fpu_status.float_rounding_mode; 418c9274b6bSCho, Yu-Chen 419c9274b6bSCho, Yu-Chen switch (m3) { 420c9274b6bSCho, Yu-Chen case 0: 421c9274b6bSCho, Yu-Chen /* current mode */ 422c9274b6bSCho, Yu-Chen break; 423c9274b6bSCho, Yu-Chen case 1: 424c9274b6bSCho, Yu-Chen /* round to nearest with ties away from 0 */ 425c9274b6bSCho, Yu-Chen set_float_rounding_mode(float_round_ties_away, &env->fpu_status); 426c9274b6bSCho, Yu-Chen break; 427c9274b6bSCho, Yu-Chen case 3: 428c9274b6bSCho, Yu-Chen /* round to prepare for shorter precision */ 429c9274b6bSCho, Yu-Chen set_float_rounding_mode(float_round_to_odd, &env->fpu_status); 430c9274b6bSCho, Yu-Chen break; 431c9274b6bSCho, Yu-Chen case 4: 432c9274b6bSCho, Yu-Chen /* round to nearest with ties to even */ 433c9274b6bSCho, Yu-Chen set_float_rounding_mode(float_round_nearest_even, &env->fpu_status); 434c9274b6bSCho, Yu-Chen break; 435c9274b6bSCho, Yu-Chen case 5: 436c9274b6bSCho, Yu-Chen /* round to zero */ 437c9274b6bSCho, Yu-Chen set_float_rounding_mode(float_round_to_zero, &env->fpu_status); 438c9274b6bSCho, Yu-Chen break; 439c9274b6bSCho, Yu-Chen case 6: 440c9274b6bSCho, Yu-Chen /* round to +inf */ 441c9274b6bSCho, Yu-Chen set_float_rounding_mode(float_round_up, &env->fpu_status); 442c9274b6bSCho, Yu-Chen break; 443c9274b6bSCho, Yu-Chen case 7: 444c9274b6bSCho, Yu-Chen /* round to -inf */ 445c9274b6bSCho, Yu-Chen set_float_rounding_mode(float_round_down, &env->fpu_status); 446c9274b6bSCho, Yu-Chen break; 447c9274b6bSCho, Yu-Chen default: 448c9274b6bSCho, Yu-Chen g_assert_not_reached(); 449c9274b6bSCho, Yu-Chen } 450c9274b6bSCho, Yu-Chen return ret; 451c9274b6bSCho, Yu-Chen } 452c9274b6bSCho, Yu-Chen 453c9274b6bSCho, Yu-Chen void s390_restore_bfp_rounding_mode(CPUS390XState *env, int old_mode) 454c9274b6bSCho, Yu-Chen { 455c9274b6bSCho, Yu-Chen set_float_rounding_mode(old_mode, &env->fpu_status); 456c9274b6bSCho, Yu-Chen } 457c9274b6bSCho, Yu-Chen 458c9274b6bSCho, Yu-Chen /* convert 64-bit int to 32-bit float */ 459c9274b6bSCho, Yu-Chen uint64_t HELPER(cegb)(CPUS390XState *env, int64_t v2, uint32_t m34) 460c9274b6bSCho, Yu-Chen { 461c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 462c9274b6bSCho, Yu-Chen float32 ret = int64_to_float32(v2, &env->fpu_status); 463c9274b6bSCho, Yu-Chen 464c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 465c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 466c9274b6bSCho, Yu-Chen return ret; 467c9274b6bSCho, Yu-Chen } 468c9274b6bSCho, Yu-Chen 469c9274b6bSCho, Yu-Chen /* convert 64-bit int to 64-bit float */ 470c9274b6bSCho, Yu-Chen uint64_t HELPER(cdgb)(CPUS390XState *env, int64_t v2, uint32_t m34) 471c9274b6bSCho, Yu-Chen { 472c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 473c9274b6bSCho, Yu-Chen float64 ret = int64_to_float64(v2, &env->fpu_status); 474c9274b6bSCho, Yu-Chen 475c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 476c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 477c9274b6bSCho, Yu-Chen return ret; 478c9274b6bSCho, Yu-Chen } 479c9274b6bSCho, Yu-Chen 480c9274b6bSCho, Yu-Chen /* convert 64-bit int to 128-bit float */ 481ee5e866fSRichard Henderson Int128 HELPER(cxgb)(CPUS390XState *env, int64_t v2, uint32_t m34) 482c9274b6bSCho, Yu-Chen { 483c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 484c9274b6bSCho, Yu-Chen float128 ret = int64_to_float128(v2, &env->fpu_status); 485c9274b6bSCho, Yu-Chen 486c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 487c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 488c9274b6bSCho, Yu-Chen return RET128(ret); 489c9274b6bSCho, Yu-Chen } 490c9274b6bSCho, Yu-Chen 491c9274b6bSCho, Yu-Chen /* convert 64-bit uint to 32-bit float */ 492c9274b6bSCho, Yu-Chen uint64_t HELPER(celgb)(CPUS390XState *env, uint64_t v2, uint32_t m34) 493c9274b6bSCho, Yu-Chen { 494c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 495c9274b6bSCho, Yu-Chen float32 ret = uint64_to_float32(v2, &env->fpu_status); 496c9274b6bSCho, Yu-Chen 497c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 498c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 499c9274b6bSCho, Yu-Chen return ret; 500c9274b6bSCho, Yu-Chen } 501c9274b6bSCho, Yu-Chen 502c9274b6bSCho, Yu-Chen /* convert 64-bit uint to 64-bit float */ 503c9274b6bSCho, Yu-Chen uint64_t HELPER(cdlgb)(CPUS390XState *env, uint64_t v2, uint32_t m34) 504c9274b6bSCho, Yu-Chen { 505c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 506c9274b6bSCho, Yu-Chen float64 ret = uint64_to_float64(v2, &env->fpu_status); 507c9274b6bSCho, Yu-Chen 508c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 509c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 510c9274b6bSCho, Yu-Chen return ret; 511c9274b6bSCho, Yu-Chen } 512c9274b6bSCho, Yu-Chen 513c9274b6bSCho, Yu-Chen /* convert 64-bit uint to 128-bit float */ 514ee5e866fSRichard Henderson Int128 HELPER(cxlgb)(CPUS390XState *env, uint64_t v2, uint32_t m34) 515c9274b6bSCho, Yu-Chen { 516c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 517c9274b6bSCho, Yu-Chen float128 ret = uint64_to_float128(v2, &env->fpu_status); 518c9274b6bSCho, Yu-Chen 519c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 520c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 521c9274b6bSCho, Yu-Chen return RET128(ret); 522c9274b6bSCho, Yu-Chen } 523c9274b6bSCho, Yu-Chen 524c9274b6bSCho, Yu-Chen /* convert 32-bit float to 64-bit int */ 525c9274b6bSCho, Yu-Chen uint64_t HELPER(cgeb)(CPUS390XState *env, uint64_t v2, uint32_t m34) 526c9274b6bSCho, Yu-Chen { 527c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 528c9274b6bSCho, Yu-Chen int64_t ret = float32_to_int64(v2, &env->fpu_status); 529c9274b6bSCho, Yu-Chen uint32_t cc = set_cc_conv_f32(v2, &env->fpu_status); 530c9274b6bSCho, Yu-Chen 531c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 532c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 533c9274b6bSCho, Yu-Chen env->cc_op = cc; 534c9274b6bSCho, Yu-Chen if (float32_is_any_nan(v2)) { 535c9274b6bSCho, Yu-Chen return INT64_MIN; 536c9274b6bSCho, Yu-Chen } 537c9274b6bSCho, Yu-Chen return ret; 538c9274b6bSCho, Yu-Chen } 539c9274b6bSCho, Yu-Chen 540c9274b6bSCho, Yu-Chen /* convert 64-bit float to 64-bit int */ 541c9274b6bSCho, Yu-Chen uint64_t HELPER(cgdb)(CPUS390XState *env, uint64_t v2, uint32_t m34) 542c9274b6bSCho, Yu-Chen { 543c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 544c9274b6bSCho, Yu-Chen int64_t ret = float64_to_int64(v2, &env->fpu_status); 545c9274b6bSCho, Yu-Chen uint32_t cc = set_cc_conv_f64(v2, &env->fpu_status); 546c9274b6bSCho, Yu-Chen 547c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 548c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 549c9274b6bSCho, Yu-Chen env->cc_op = cc; 550c9274b6bSCho, Yu-Chen if (float64_is_any_nan(v2)) { 551c9274b6bSCho, Yu-Chen return INT64_MIN; 552c9274b6bSCho, Yu-Chen } 553c9274b6bSCho, Yu-Chen return ret; 554c9274b6bSCho, Yu-Chen } 555c9274b6bSCho, Yu-Chen 556c9274b6bSCho, Yu-Chen /* convert 128-bit float to 64-bit int */ 5572b91240fSRichard Henderson uint64_t HELPER(cgxb)(CPUS390XState *env, Int128 i2, uint32_t m34) 558c9274b6bSCho, Yu-Chen { 559c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 5602b91240fSRichard Henderson float128 v2 = ARG128(i2); 561c9274b6bSCho, Yu-Chen int64_t ret = float128_to_int64(v2, &env->fpu_status); 562c9274b6bSCho, Yu-Chen uint32_t cc = set_cc_conv_f128(v2, &env->fpu_status); 563c9274b6bSCho, Yu-Chen 564c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 565c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 566c9274b6bSCho, Yu-Chen env->cc_op = cc; 567c9274b6bSCho, Yu-Chen if (float128_is_any_nan(v2)) { 568c9274b6bSCho, Yu-Chen return INT64_MIN; 569c9274b6bSCho, Yu-Chen } 570c9274b6bSCho, Yu-Chen return ret; 571c9274b6bSCho, Yu-Chen } 572c9274b6bSCho, Yu-Chen 573c9274b6bSCho, Yu-Chen /* convert 32-bit float to 32-bit int */ 574c9274b6bSCho, Yu-Chen uint64_t HELPER(cfeb)(CPUS390XState *env, uint64_t v2, uint32_t m34) 575c9274b6bSCho, Yu-Chen { 576c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 577c9274b6bSCho, Yu-Chen int32_t ret = float32_to_int32(v2, &env->fpu_status); 578c9274b6bSCho, Yu-Chen uint32_t cc = set_cc_conv_f32(v2, &env->fpu_status); 579c9274b6bSCho, Yu-Chen 580c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 581c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 582c9274b6bSCho, Yu-Chen env->cc_op = cc; 583c9274b6bSCho, Yu-Chen if (float32_is_any_nan(v2)) { 584c9274b6bSCho, Yu-Chen return INT32_MIN; 585c9274b6bSCho, Yu-Chen } 586c9274b6bSCho, Yu-Chen return ret; 587c9274b6bSCho, Yu-Chen } 588c9274b6bSCho, Yu-Chen 589c9274b6bSCho, Yu-Chen /* convert 64-bit float to 32-bit int */ 590c9274b6bSCho, Yu-Chen uint64_t HELPER(cfdb)(CPUS390XState *env, uint64_t v2, uint32_t m34) 591c9274b6bSCho, Yu-Chen { 592c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 593c9274b6bSCho, Yu-Chen int32_t ret = float64_to_int32(v2, &env->fpu_status); 594c9274b6bSCho, Yu-Chen uint32_t cc = set_cc_conv_f64(v2, &env->fpu_status); 595c9274b6bSCho, Yu-Chen 596c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 597c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 598c9274b6bSCho, Yu-Chen env->cc_op = cc; 599c9274b6bSCho, Yu-Chen if (float64_is_any_nan(v2)) { 600c9274b6bSCho, Yu-Chen return INT32_MIN; 601c9274b6bSCho, Yu-Chen } 602c9274b6bSCho, Yu-Chen return ret; 603c9274b6bSCho, Yu-Chen } 604c9274b6bSCho, Yu-Chen 605c9274b6bSCho, Yu-Chen /* convert 128-bit float to 32-bit int */ 6062b91240fSRichard Henderson uint64_t HELPER(cfxb)(CPUS390XState *env, Int128 i2, uint32_t m34) 607c9274b6bSCho, Yu-Chen { 608c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 6092b91240fSRichard Henderson float128 v2 = ARG128(i2); 610c9274b6bSCho, Yu-Chen int32_t ret = float128_to_int32(v2, &env->fpu_status); 611c9274b6bSCho, Yu-Chen uint32_t cc = set_cc_conv_f128(v2, &env->fpu_status); 612c9274b6bSCho, Yu-Chen 613c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 614c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 615c9274b6bSCho, Yu-Chen env->cc_op = cc; 616c9274b6bSCho, Yu-Chen if (float128_is_any_nan(v2)) { 617c9274b6bSCho, Yu-Chen return INT32_MIN; 618c9274b6bSCho, Yu-Chen } 619c9274b6bSCho, Yu-Chen return ret; 620c9274b6bSCho, Yu-Chen } 621c9274b6bSCho, Yu-Chen 622c9274b6bSCho, Yu-Chen /* convert 32-bit float to 64-bit uint */ 623c9274b6bSCho, Yu-Chen uint64_t HELPER(clgeb)(CPUS390XState *env, uint64_t v2, uint32_t m34) 624c9274b6bSCho, Yu-Chen { 625c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 626c9274b6bSCho, Yu-Chen uint64_t ret = float32_to_uint64(v2, &env->fpu_status); 627c9274b6bSCho, Yu-Chen uint32_t cc = set_cc_conv_f32(v2, &env->fpu_status); 628c9274b6bSCho, Yu-Chen 629c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 630c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 631c9274b6bSCho, Yu-Chen env->cc_op = cc; 632c9274b6bSCho, Yu-Chen if (float32_is_any_nan(v2)) { 633c9274b6bSCho, Yu-Chen return 0; 634c9274b6bSCho, Yu-Chen } 635c9274b6bSCho, Yu-Chen return ret; 636c9274b6bSCho, Yu-Chen } 637c9274b6bSCho, Yu-Chen 638c9274b6bSCho, Yu-Chen /* convert 64-bit float to 64-bit uint */ 639c9274b6bSCho, Yu-Chen uint64_t HELPER(clgdb)(CPUS390XState *env, uint64_t v2, uint32_t m34) 640c9274b6bSCho, Yu-Chen { 641c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 642c9274b6bSCho, Yu-Chen uint64_t ret = float64_to_uint64(v2, &env->fpu_status); 643c9274b6bSCho, Yu-Chen uint32_t cc = set_cc_conv_f64(v2, &env->fpu_status); 644c9274b6bSCho, Yu-Chen 645c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 646c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 647c9274b6bSCho, Yu-Chen env->cc_op = cc; 648c9274b6bSCho, Yu-Chen if (float64_is_any_nan(v2)) { 649c9274b6bSCho, Yu-Chen return 0; 650c9274b6bSCho, Yu-Chen } 651c9274b6bSCho, Yu-Chen return ret; 652c9274b6bSCho, Yu-Chen } 653c9274b6bSCho, Yu-Chen 654c9274b6bSCho, Yu-Chen /* convert 128-bit float to 64-bit uint */ 6552b91240fSRichard Henderson uint64_t HELPER(clgxb)(CPUS390XState *env, Int128 i2, uint32_t m34) 656c9274b6bSCho, Yu-Chen { 657c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 6582b91240fSRichard Henderson float128 v2 = ARG128(i2); 659c9274b6bSCho, Yu-Chen uint64_t ret = float128_to_uint64(v2, &env->fpu_status); 660c9274b6bSCho, Yu-Chen uint32_t cc = set_cc_conv_f128(v2, &env->fpu_status); 661c9274b6bSCho, Yu-Chen 662c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 663c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 664c9274b6bSCho, Yu-Chen env->cc_op = cc; 665c9274b6bSCho, Yu-Chen if (float128_is_any_nan(v2)) { 666c9274b6bSCho, Yu-Chen return 0; 667c9274b6bSCho, Yu-Chen } 668c9274b6bSCho, Yu-Chen return ret; 669c9274b6bSCho, Yu-Chen } 670c9274b6bSCho, Yu-Chen 671c9274b6bSCho, Yu-Chen /* convert 32-bit float to 32-bit uint */ 672c9274b6bSCho, Yu-Chen uint64_t HELPER(clfeb)(CPUS390XState *env, uint64_t v2, uint32_t m34) 673c9274b6bSCho, Yu-Chen { 674c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 675c9274b6bSCho, Yu-Chen uint32_t ret = float32_to_uint32(v2, &env->fpu_status); 676c9274b6bSCho, Yu-Chen uint32_t cc = set_cc_conv_f32(v2, &env->fpu_status); 677c9274b6bSCho, Yu-Chen 678c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 679c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 680c9274b6bSCho, Yu-Chen env->cc_op = cc; 681c9274b6bSCho, Yu-Chen if (float32_is_any_nan(v2)) { 682c9274b6bSCho, Yu-Chen return 0; 683c9274b6bSCho, Yu-Chen } 684c9274b6bSCho, Yu-Chen return ret; 685c9274b6bSCho, Yu-Chen } 686c9274b6bSCho, Yu-Chen 687c9274b6bSCho, Yu-Chen /* convert 64-bit float to 32-bit uint */ 688c9274b6bSCho, Yu-Chen uint64_t HELPER(clfdb)(CPUS390XState *env, uint64_t v2, uint32_t m34) 689c9274b6bSCho, Yu-Chen { 690c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 691c9274b6bSCho, Yu-Chen uint32_t ret = float64_to_uint32(v2, &env->fpu_status); 692c9274b6bSCho, Yu-Chen uint32_t cc = set_cc_conv_f64(v2, &env->fpu_status); 693c9274b6bSCho, Yu-Chen 694c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 695c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 696c9274b6bSCho, Yu-Chen env->cc_op = cc; 697c9274b6bSCho, Yu-Chen if (float64_is_any_nan(v2)) { 698c9274b6bSCho, Yu-Chen return 0; 699c9274b6bSCho, Yu-Chen } 700c9274b6bSCho, Yu-Chen return ret; 701c9274b6bSCho, Yu-Chen } 702c9274b6bSCho, Yu-Chen 703c9274b6bSCho, Yu-Chen /* convert 128-bit float to 32-bit uint */ 7042b91240fSRichard Henderson uint64_t HELPER(clfxb)(CPUS390XState *env, Int128 i2, uint32_t m34) 705c9274b6bSCho, Yu-Chen { 706c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 7072b91240fSRichard Henderson float128 v2 = ARG128(i2); 708c9274b6bSCho, Yu-Chen uint32_t ret = float128_to_uint32(v2, &env->fpu_status); 709c9274b6bSCho, Yu-Chen uint32_t cc = set_cc_conv_f128(v2, &env->fpu_status); 710c9274b6bSCho, Yu-Chen 711c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 712c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 713c9274b6bSCho, Yu-Chen env->cc_op = cc; 714c9274b6bSCho, Yu-Chen if (float128_is_any_nan(v2)) { 715c9274b6bSCho, Yu-Chen return 0; 716c9274b6bSCho, Yu-Chen } 717c9274b6bSCho, Yu-Chen return ret; 718c9274b6bSCho, Yu-Chen } 719c9274b6bSCho, Yu-Chen 720c9274b6bSCho, Yu-Chen /* round to integer 32-bit */ 721c9274b6bSCho, Yu-Chen uint64_t HELPER(fieb)(CPUS390XState *env, uint64_t f2, uint32_t m34) 722c9274b6bSCho, Yu-Chen { 723c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 724c9274b6bSCho, Yu-Chen float32 ret = float32_round_to_int(f2, &env->fpu_status); 725c9274b6bSCho, Yu-Chen 726c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 727c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 728c9274b6bSCho, Yu-Chen return ret; 729c9274b6bSCho, Yu-Chen } 730c9274b6bSCho, Yu-Chen 731c9274b6bSCho, Yu-Chen /* round to integer 64-bit */ 732c9274b6bSCho, Yu-Chen uint64_t HELPER(fidb)(CPUS390XState *env, uint64_t f2, uint32_t m34) 733c9274b6bSCho, Yu-Chen { 734c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 735c9274b6bSCho, Yu-Chen float64 ret = float64_round_to_int(f2, &env->fpu_status); 736c9274b6bSCho, Yu-Chen 737c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 738c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 739c9274b6bSCho, Yu-Chen return ret; 740c9274b6bSCho, Yu-Chen } 741c9274b6bSCho, Yu-Chen 742c9274b6bSCho, Yu-Chen /* round to integer 128-bit */ 7432b91240fSRichard Henderson Int128 HELPER(fixb)(CPUS390XState *env, Int128 a, uint32_t m34) 744c9274b6bSCho, Yu-Chen { 745c9274b6bSCho, Yu-Chen int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); 7462b91240fSRichard Henderson float128 ret = float128_round_to_int(ARG128(a), &env->fpu_status); 747c9274b6bSCho, Yu-Chen 748c9274b6bSCho, Yu-Chen s390_restore_bfp_rounding_mode(env, old_mode); 749c9274b6bSCho, Yu-Chen handle_exceptions(env, xxc_from_m34(m34), GETPC()); 750c9274b6bSCho, Yu-Chen return RET128(ret); 751c9274b6bSCho, Yu-Chen } 752c9274b6bSCho, Yu-Chen 753c9274b6bSCho, Yu-Chen /* 32-bit FP compare and signal */ 754c9274b6bSCho, Yu-Chen uint32_t HELPER(keb)(CPUS390XState *env, uint64_t f1, uint64_t f2) 755c9274b6bSCho, Yu-Chen { 756c9274b6bSCho, Yu-Chen FloatRelation cmp = float32_compare(f1, f2, &env->fpu_status); 757c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 758c9274b6bSCho, Yu-Chen return float_comp_to_cc(env, cmp); 759c9274b6bSCho, Yu-Chen } 760c9274b6bSCho, Yu-Chen 761c9274b6bSCho, Yu-Chen /* 64-bit FP compare and signal */ 762c9274b6bSCho, Yu-Chen uint32_t HELPER(kdb)(CPUS390XState *env, uint64_t f1, uint64_t f2) 763c9274b6bSCho, Yu-Chen { 764c9274b6bSCho, Yu-Chen FloatRelation cmp = float64_compare(f1, f2, &env->fpu_status); 765c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 766c9274b6bSCho, Yu-Chen return float_comp_to_cc(env, cmp); 767c9274b6bSCho, Yu-Chen } 768c9274b6bSCho, Yu-Chen 769c9274b6bSCho, Yu-Chen /* 128-bit FP compare and signal */ 7702b91240fSRichard Henderson uint32_t HELPER(kxb)(CPUS390XState *env, Int128 a, Int128 b) 771c9274b6bSCho, Yu-Chen { 7722b91240fSRichard Henderson FloatRelation cmp = float128_compare(ARG128(a), ARG128(b), 773c9274b6bSCho, Yu-Chen &env->fpu_status); 774c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 775c9274b6bSCho, Yu-Chen return float_comp_to_cc(env, cmp); 776c9274b6bSCho, Yu-Chen } 777c9274b6bSCho, Yu-Chen 778c9274b6bSCho, Yu-Chen /* 32-bit FP multiply and add */ 779c9274b6bSCho, Yu-Chen uint64_t HELPER(maeb)(CPUS390XState *env, uint64_t f1, 780c9274b6bSCho, Yu-Chen uint64_t f2, uint64_t f3) 781c9274b6bSCho, Yu-Chen { 782c9274b6bSCho, Yu-Chen float32 ret = float32_muladd(f2, f3, f1, 0, &env->fpu_status); 783c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 784c9274b6bSCho, Yu-Chen return ret; 785c9274b6bSCho, Yu-Chen } 786c9274b6bSCho, Yu-Chen 787c9274b6bSCho, Yu-Chen /* 64-bit FP multiply and add */ 788c9274b6bSCho, Yu-Chen uint64_t HELPER(madb)(CPUS390XState *env, uint64_t f1, 789c9274b6bSCho, Yu-Chen uint64_t f2, uint64_t f3) 790c9274b6bSCho, Yu-Chen { 791c9274b6bSCho, Yu-Chen float64 ret = float64_muladd(f2, f3, f1, 0, &env->fpu_status); 792c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 793c9274b6bSCho, Yu-Chen return ret; 794c9274b6bSCho, Yu-Chen } 795c9274b6bSCho, Yu-Chen 796c9274b6bSCho, Yu-Chen /* 32-bit FP multiply and subtract */ 797c9274b6bSCho, Yu-Chen uint64_t HELPER(mseb)(CPUS390XState *env, uint64_t f1, 798c9274b6bSCho, Yu-Chen uint64_t f2, uint64_t f3) 799c9274b6bSCho, Yu-Chen { 800c9274b6bSCho, Yu-Chen float32 ret = float32_muladd(f2, f3, f1, float_muladd_negate_c, 801c9274b6bSCho, Yu-Chen &env->fpu_status); 802c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 803c9274b6bSCho, Yu-Chen return ret; 804c9274b6bSCho, Yu-Chen } 805c9274b6bSCho, Yu-Chen 806c9274b6bSCho, Yu-Chen /* 64-bit FP multiply and subtract */ 807c9274b6bSCho, Yu-Chen uint64_t HELPER(msdb)(CPUS390XState *env, uint64_t f1, 808c9274b6bSCho, Yu-Chen uint64_t f2, uint64_t f3) 809c9274b6bSCho, Yu-Chen { 810c9274b6bSCho, Yu-Chen float64 ret = float64_muladd(f2, f3, f1, float_muladd_negate_c, 811c9274b6bSCho, Yu-Chen &env->fpu_status); 812c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 813c9274b6bSCho, Yu-Chen return ret; 814c9274b6bSCho, Yu-Chen } 815c9274b6bSCho, Yu-Chen 816c9274b6bSCho, Yu-Chen /* The rightmost bit has the number 11. */ 817c9274b6bSCho, Yu-Chen static inline uint16_t dcmask(int bit, bool neg) 818c9274b6bSCho, Yu-Chen { 819c9274b6bSCho, Yu-Chen return 1 << (11 - bit - neg); 820c9274b6bSCho, Yu-Chen } 821c9274b6bSCho, Yu-Chen 822c9274b6bSCho, Yu-Chen #define DEF_FLOAT_DCMASK(_TYPE) \ 823c9274b6bSCho, Yu-Chen uint16_t _TYPE##_dcmask(CPUS390XState *env, _TYPE f1) \ 824c9274b6bSCho, Yu-Chen { \ 825c9274b6bSCho, Yu-Chen const bool neg = _TYPE##_is_neg(f1); \ 826c9274b6bSCho, Yu-Chen \ 827c9274b6bSCho, Yu-Chen /* Sorted by most common cases - only one class is possible */ \ 828c9274b6bSCho, Yu-Chen if (_TYPE##_is_normal(f1)) { \ 829c9274b6bSCho, Yu-Chen return dcmask(2, neg); \ 830c9274b6bSCho, Yu-Chen } else if (_TYPE##_is_zero(f1)) { \ 831c9274b6bSCho, Yu-Chen return dcmask(0, neg); \ 832c9274b6bSCho, Yu-Chen } else if (_TYPE##_is_denormal(f1)) { \ 833c9274b6bSCho, Yu-Chen return dcmask(4, neg); \ 834c9274b6bSCho, Yu-Chen } else if (_TYPE##_is_infinity(f1)) { \ 835c9274b6bSCho, Yu-Chen return dcmask(6, neg); \ 836c9274b6bSCho, Yu-Chen } else if (_TYPE##_is_quiet_nan(f1, &env->fpu_status)) { \ 837c9274b6bSCho, Yu-Chen return dcmask(8, neg); \ 838c9274b6bSCho, Yu-Chen } \ 839c9274b6bSCho, Yu-Chen /* signaling nan, as last remaining case */ \ 840c9274b6bSCho, Yu-Chen return dcmask(10, neg); \ 841c9274b6bSCho, Yu-Chen } 842c9274b6bSCho, Yu-Chen DEF_FLOAT_DCMASK(float32) 843c9274b6bSCho, Yu-Chen DEF_FLOAT_DCMASK(float64) 844c9274b6bSCho, Yu-Chen DEF_FLOAT_DCMASK(float128) 845c9274b6bSCho, Yu-Chen 846c9274b6bSCho, Yu-Chen /* test data class 32-bit */ 847c9274b6bSCho, Yu-Chen uint32_t HELPER(tceb)(CPUS390XState *env, uint64_t f1, uint64_t m2) 848c9274b6bSCho, Yu-Chen { 849c9274b6bSCho, Yu-Chen return (m2 & float32_dcmask(env, f1)) != 0; 850c9274b6bSCho, Yu-Chen } 851c9274b6bSCho, Yu-Chen 852c9274b6bSCho, Yu-Chen /* test data class 64-bit */ 853c9274b6bSCho, Yu-Chen uint32_t HELPER(tcdb)(CPUS390XState *env, uint64_t v1, uint64_t m2) 854c9274b6bSCho, Yu-Chen { 855c9274b6bSCho, Yu-Chen return (m2 & float64_dcmask(env, v1)) != 0; 856c9274b6bSCho, Yu-Chen } 857c9274b6bSCho, Yu-Chen 858c9274b6bSCho, Yu-Chen /* test data class 128-bit */ 8592b91240fSRichard Henderson uint32_t HELPER(tcxb)(CPUS390XState *env, Int128 a, uint64_t m2) 860c9274b6bSCho, Yu-Chen { 8612b91240fSRichard Henderson return (m2 & float128_dcmask(env, ARG128(a))) != 0; 862c9274b6bSCho, Yu-Chen } 863c9274b6bSCho, Yu-Chen 864c9274b6bSCho, Yu-Chen /* square root 32-bit */ 865c9274b6bSCho, Yu-Chen uint64_t HELPER(sqeb)(CPUS390XState *env, uint64_t f2) 866c9274b6bSCho, Yu-Chen { 867c9274b6bSCho, Yu-Chen float32 ret = float32_sqrt(f2, &env->fpu_status); 868c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 869c9274b6bSCho, Yu-Chen return ret; 870c9274b6bSCho, Yu-Chen } 871c9274b6bSCho, Yu-Chen 872c9274b6bSCho, Yu-Chen /* square root 64-bit */ 873c9274b6bSCho, Yu-Chen uint64_t HELPER(sqdb)(CPUS390XState *env, uint64_t f2) 874c9274b6bSCho, Yu-Chen { 875c9274b6bSCho, Yu-Chen float64 ret = float64_sqrt(f2, &env->fpu_status); 876c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 877c9274b6bSCho, Yu-Chen return ret; 878c9274b6bSCho, Yu-Chen } 879c9274b6bSCho, Yu-Chen 880c9274b6bSCho, Yu-Chen /* square root 128-bit */ 8812b91240fSRichard Henderson Int128 HELPER(sqxb)(CPUS390XState *env, Int128 a) 882c9274b6bSCho, Yu-Chen { 8832b91240fSRichard Henderson float128 ret = float128_sqrt(ARG128(a), &env->fpu_status); 884c9274b6bSCho, Yu-Chen handle_exceptions(env, false, GETPC()); 885c9274b6bSCho, Yu-Chen return RET128(ret); 886c9274b6bSCho, Yu-Chen } 887c9274b6bSCho, Yu-Chen 888c9274b6bSCho, Yu-Chen static const int fpc_to_rnd[8] = { 889c9274b6bSCho, Yu-Chen float_round_nearest_even, 890c9274b6bSCho, Yu-Chen float_round_to_zero, 891c9274b6bSCho, Yu-Chen float_round_up, 892c9274b6bSCho, Yu-Chen float_round_down, 893c9274b6bSCho, Yu-Chen -1, 894c9274b6bSCho, Yu-Chen -1, 895c9274b6bSCho, Yu-Chen -1, 896c9274b6bSCho, Yu-Chen float_round_to_odd, 897c9274b6bSCho, Yu-Chen }; 898c9274b6bSCho, Yu-Chen 899c9274b6bSCho, Yu-Chen /* set fpc */ 900c9274b6bSCho, Yu-Chen void HELPER(sfpc)(CPUS390XState *env, uint64_t fpc) 901c9274b6bSCho, Yu-Chen { 902c9274b6bSCho, Yu-Chen if (fpc_to_rnd[fpc & 0x7] == -1 || fpc & 0x03030088u || 903c9274b6bSCho, Yu-Chen (!s390_has_feat(S390_FEAT_FLOATING_POINT_EXT) && fpc & 0x4)) { 904c9274b6bSCho, Yu-Chen tcg_s390_program_interrupt(env, PGM_SPECIFICATION, GETPC()); 905c9274b6bSCho, Yu-Chen } 906c9274b6bSCho, Yu-Chen 907c9274b6bSCho, Yu-Chen /* Install everything in the main FPC. */ 908c9274b6bSCho, Yu-Chen env->fpc = fpc; 909c9274b6bSCho, Yu-Chen 910c9274b6bSCho, Yu-Chen /* Install the rounding mode in the shadow fpu_status. */ 911c9274b6bSCho, Yu-Chen set_float_rounding_mode(fpc_to_rnd[fpc & 0x7], &env->fpu_status); 912c9274b6bSCho, Yu-Chen } 913c9274b6bSCho, Yu-Chen 914c9274b6bSCho, Yu-Chen /* set fpc and signal */ 915c9274b6bSCho, Yu-Chen void HELPER(sfas)(CPUS390XState *env, uint64_t fpc) 916c9274b6bSCho, Yu-Chen { 917c9274b6bSCho, Yu-Chen uint32_t signalling = env->fpc; 918c9274b6bSCho, Yu-Chen uint32_t s390_exc; 919c9274b6bSCho, Yu-Chen 920c9274b6bSCho, Yu-Chen if (fpc_to_rnd[fpc & 0x7] == -1 || fpc & 0x03030088u || 921c9274b6bSCho, Yu-Chen (!s390_has_feat(S390_FEAT_FLOATING_POINT_EXT) && fpc & 0x4)) { 922c9274b6bSCho, Yu-Chen tcg_s390_program_interrupt(env, PGM_SPECIFICATION, GETPC()); 923c9274b6bSCho, Yu-Chen } 924c9274b6bSCho, Yu-Chen 925c9274b6bSCho, Yu-Chen /* 926c9274b6bSCho, Yu-Chen * FPC is set to the FPC operand with a bitwise OR of the signalling 927c9274b6bSCho, Yu-Chen * flags. 928c9274b6bSCho, Yu-Chen */ 929c9274b6bSCho, Yu-Chen env->fpc = fpc | (signalling & 0x00ff0000); 930c9274b6bSCho, Yu-Chen set_float_rounding_mode(fpc_to_rnd[fpc & 0x7], &env->fpu_status); 931c9274b6bSCho, Yu-Chen 932c9274b6bSCho, Yu-Chen /* 933c9274b6bSCho, Yu-Chen * If any signaling flag is enabled in the new FPC mask, a 934c9274b6bSCho, Yu-Chen * simulated-iee-exception exception occurs. 935c9274b6bSCho, Yu-Chen */ 936c9274b6bSCho, Yu-Chen s390_exc = (signalling >> 16) & (fpc >> 24); 937c9274b6bSCho, Yu-Chen if (s390_exc) { 938c9274b6bSCho, Yu-Chen if (s390_exc & S390_IEEE_MASK_INVALID) { 939c9274b6bSCho, Yu-Chen s390_exc = S390_IEEE_MASK_INVALID; 940c9274b6bSCho, Yu-Chen } else if (s390_exc & S390_IEEE_MASK_DIVBYZERO) { 941c9274b6bSCho, Yu-Chen s390_exc = S390_IEEE_MASK_DIVBYZERO; 942c9274b6bSCho, Yu-Chen } else if (s390_exc & S390_IEEE_MASK_OVERFLOW) { 943c9274b6bSCho, Yu-Chen s390_exc &= (S390_IEEE_MASK_OVERFLOW | S390_IEEE_MASK_INEXACT); 944c9274b6bSCho, Yu-Chen } else if (s390_exc & S390_IEEE_MASK_UNDERFLOW) { 945c9274b6bSCho, Yu-Chen s390_exc &= (S390_IEEE_MASK_UNDERFLOW | S390_IEEE_MASK_INEXACT); 946c9274b6bSCho, Yu-Chen } else if (s390_exc & S390_IEEE_MASK_INEXACT) { 947c9274b6bSCho, Yu-Chen s390_exc = S390_IEEE_MASK_INEXACT; 948c9274b6bSCho, Yu-Chen } else if (s390_exc & S390_IEEE_MASK_QUANTUM) { 949c9274b6bSCho, Yu-Chen s390_exc = S390_IEEE_MASK_QUANTUM; 950c9274b6bSCho, Yu-Chen } 951c9274b6bSCho, Yu-Chen tcg_s390_data_exception(env, s390_exc | 3, GETPC()); 952c9274b6bSCho, Yu-Chen } 953c9274b6bSCho, Yu-Chen } 954c9274b6bSCho, Yu-Chen 955c9274b6bSCho, Yu-Chen /* set bfp rounding mode */ 956c9274b6bSCho, Yu-Chen void HELPER(srnm)(CPUS390XState *env, uint64_t rnd) 957c9274b6bSCho, Yu-Chen { 958c9274b6bSCho, Yu-Chen if (rnd > 0x7 || fpc_to_rnd[rnd & 0x7] == -1) { 959c9274b6bSCho, Yu-Chen tcg_s390_program_interrupt(env, PGM_SPECIFICATION, GETPC()); 960c9274b6bSCho, Yu-Chen } 961c9274b6bSCho, Yu-Chen 962c9274b6bSCho, Yu-Chen env->fpc = deposit32(env->fpc, 0, 3, rnd); 963c9274b6bSCho, Yu-Chen set_float_rounding_mode(fpc_to_rnd[rnd & 0x7], &env->fpu_status); 964c9274b6bSCho, Yu-Chen } 965