root / target-mips / op_helper.c @ 9f77c1cd
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/*
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* MIPS emulation helpers for qemu.
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*
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* Copyright (c) 2004-2005 Jocelyn Mayer
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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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*/
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#include <stdlib.h> |
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#include "exec.h" |
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#define GETPC() (__builtin_return_address(0)) |
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/*****************************************************************************/
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/* Exceptions processing helpers */
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void do_raise_exception_err (uint32_t exception, int error_code) |
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{
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#if 1 |
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if (logfile && exception < 0x100) |
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fprintf(logfile, "%s: %d %d\n", __func__, exception, error_code);
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#endif
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env->exception_index = exception; |
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env->error_code = error_code; |
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T0 = 0;
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cpu_loop_exit(); |
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} |
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void do_raise_exception (uint32_t exception)
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{
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do_raise_exception_err(exception, 0);
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} |
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void do_restore_state (void *pc_ptr) |
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{
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TranslationBlock *tb; |
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unsigned long pc = (unsigned long) pc_ptr; |
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tb = tb_find_pc (pc); |
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cpu_restore_state (tb, env, pc, NULL);
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} |
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void do_raise_exception_direct_err (uint32_t exception, int error_code) |
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{
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do_restore_state (GETPC ()); |
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do_raise_exception_err (exception, error_code); |
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} |
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void do_raise_exception_direct (uint32_t exception)
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{
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do_raise_exception_direct_err (exception, 0);
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} |
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#if defined(TARGET_MIPSN32) || defined(TARGET_MIPS64)
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#if TARGET_LONG_BITS > HOST_LONG_BITS
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/* Those might call libgcc functions. */
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void do_dsll (void) |
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{
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T0 = T0 << T1; |
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} |
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void do_dsll32 (void) |
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{
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T0 = T0 << (T1 + 32);
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} |
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void do_dsra (void) |
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{
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T0 = (int64_t)T0 >> T1; |
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} |
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void do_dsra32 (void) |
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{
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T0 = (int64_t)T0 >> (T1 + 32);
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} |
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void do_dsrl (void) |
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{
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T0 = T0 >> T1; |
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} |
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void do_dsrl32 (void) |
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{
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T0 = T0 >> (T1 + 32);
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} |
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void do_drotr (void) |
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{
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target_ulong tmp; |
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if (T1) {
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tmp = T0 << (0x40 - T1);
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T0 = (T0 >> T1) | tmp; |
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} |
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} |
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void do_drotr32 (void) |
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{
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target_ulong tmp; |
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if (T1) {
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tmp = T0 << (0x40 - (32 + T1)); |
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T0 = (T0 >> (32 + T1)) | tmp;
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} |
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} |
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void do_dsllv (void) |
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{
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T0 = T1 << (T0 & 0x3F);
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} |
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void do_dsrav (void) |
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{
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T0 = (int64_t)T1 >> (T0 & 0x3F);
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} |
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void do_dsrlv (void) |
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{
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T0 = T1 >> (T0 & 0x3F);
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} |
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void do_drotrv (void) |
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{
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target_ulong tmp; |
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T0 &= 0x3F;
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if (T0) {
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tmp = T1 << (0x40 - T0);
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T0 = (T1 >> T0) | tmp; |
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} else
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T0 = T1; |
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} |
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#endif /* TARGET_LONG_BITS > HOST_LONG_BITS */ |
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#endif /* TARGET_MIPSN32 || TARGET_MIPS64 */ |
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/* 64 bits arithmetic for 32 bits hosts */
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#if TARGET_LONG_BITS > HOST_LONG_BITS
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static always_inline uint64_t get_HILO (void) |
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{
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return (env->HI[0][env->current_tc] << 32) | (uint32_t)env->LO[0][env->current_tc]; |
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} |
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static always_inline void set_HILO (uint64_t HILO) |
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{
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env->LO[0][env->current_tc] = (int32_t)HILO;
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env->HI[0][env->current_tc] = (int32_t)(HILO >> 32); |
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} |
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void do_mult (void) |
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{
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set_HILO((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1); |
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} |
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void do_multu (void) |
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{
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set_HILO((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1); |
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} |
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void do_madd (void) |
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{
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int64_t tmp; |
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tmp = ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1); |
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set_HILO((int64_t)get_HILO() + tmp); |
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} |
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void do_maddu (void) |
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{
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uint64_t tmp; |
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tmp = ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1); |
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set_HILO(get_HILO() + tmp); |
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} |
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void do_msub (void) |
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{
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int64_t tmp; |
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tmp = ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1); |
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set_HILO((int64_t)get_HILO() - tmp); |
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} |
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void do_msubu (void) |
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{
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uint64_t tmp; |
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tmp = ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1); |
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set_HILO(get_HILO() - tmp); |
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} |
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#endif
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#if HOST_LONG_BITS < 64 |
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void do_div (void) |
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{
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/* 64bit datatypes because we may see overflow/underflow. */
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if (T1 != 0) { |
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env->LO[0][env->current_tc] = (int32_t)((int64_t)(int32_t)T0 / (int32_t)T1);
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env->HI[0][env->current_tc] = (int32_t)((int64_t)(int32_t)T0 % (int32_t)T1);
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} |
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} |
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#endif
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#if defined(TARGET_MIPSN32) || defined(TARGET_MIPS64)
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void do_ddiv (void) |
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{
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if (T1 != 0) { |
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lldiv_t res = lldiv((int64_t)T0, (int64_t)T1); |
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env->LO[0][env->current_tc] = res.quot;
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env->HI[0][env->current_tc] = res.rem;
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} |
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} |
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#if TARGET_LONG_BITS > HOST_LONG_BITS
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void do_ddivu (void) |
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{
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if (T1 != 0) { |
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env->LO[0][env->current_tc] = T0 / T1;
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env->HI[0][env->current_tc] = T0 % T1;
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} |
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} |
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#endif
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#endif /* TARGET_MIPSN32 || TARGET_MIPS64 */ |
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#if defined(CONFIG_USER_ONLY)
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void do_mfc0_random (void) |
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{
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cpu_abort(env, "mfc0 random\n");
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} |
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void do_mfc0_count (void) |
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{
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cpu_abort(env, "mfc0 count\n");
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} |
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void cpu_mips_store_count(CPUState *env, uint32_t value)
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{
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cpu_abort(env, "mtc0 count\n");
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} |
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void cpu_mips_store_compare(CPUState *env, uint32_t value)
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{
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cpu_abort(env, "mtc0 compare\n");
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} |
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void cpu_mips_start_count(CPUState *env)
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{
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cpu_abort(env, "start count\n");
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} |
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void cpu_mips_stop_count(CPUState *env)
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{
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cpu_abort(env, "stop count\n");
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} |
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void cpu_mips_update_irq(CPUState *env)
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{
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cpu_abort(env, "mtc0 status / mtc0 cause\n");
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} |
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void do_mtc0_status_debug(uint32_t old, uint32_t val)
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{
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cpu_abort(env, "mtc0 status debug\n");
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} |
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void do_mtc0_status_irqraise_debug (void) |
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{
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cpu_abort(env, "mtc0 status irqraise debug\n");
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} |
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void cpu_mips_tlb_flush (CPUState *env, int flush_global) |
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{
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cpu_abort(env, "mips_tlb_flush\n");
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} |
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#else
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/* CP0 helpers */
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void do_mfc0_random (void) |
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{
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T0 = (int32_t)cpu_mips_get_random(env); |
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} |
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void do_mfc0_count (void) |
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{
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T0 = (int32_t)cpu_mips_get_count(env); |
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} |
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void do_mtc0_status_debug(uint32_t old, uint32_t val)
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{
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fprintf(logfile, "Status %08x (%08x) => %08x (%08x) Cause %08x",
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old, old & env->CP0_Cause & CP0Ca_IP_mask, |
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val, val & env->CP0_Cause & CP0Ca_IP_mask, |
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env->CP0_Cause); |
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(env->hflags & MIPS_HFLAG_UM) ? fputs(", UM\n", logfile)
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: fputs("\n", logfile);
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} |
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void do_mtc0_status_irqraise_debug(void) |
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{
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fprintf(logfile, "Raise pending IRQs\n");
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} |
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void fpu_handle_exception(void) |
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{
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#ifdef CONFIG_SOFTFLOAT
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int flags = get_float_exception_flags(&env->fpu->fp_status);
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unsigned int cpuflags = 0, enable, cause = 0; |
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enable = GET_FP_ENABLE(env->fpu->fcr31); |
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/* determine current flags */
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if (flags & float_flag_invalid) {
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cpuflags |= FP_INVALID; |
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cause |= FP_INVALID & enable; |
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} |
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if (flags & float_flag_divbyzero) {
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cpuflags |= FP_DIV0; |
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cause |= FP_DIV0 & enable; |
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} |
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if (flags & float_flag_overflow) {
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cpuflags |= FP_OVERFLOW; |
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cause |= FP_OVERFLOW & enable; |
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} |
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if (flags & float_flag_underflow) {
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cpuflags |= FP_UNDERFLOW; |
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cause |= FP_UNDERFLOW & enable; |
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} |
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if (flags & float_flag_inexact) {
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cpuflags |= FP_INEXACT; |
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cause |= FP_INEXACT & enable; |
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} |
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SET_FP_FLAGS(env->fpu->fcr31, cpuflags); |
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SET_FP_CAUSE(env->fpu->fcr31, cause); |
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#else
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SET_FP_FLAGS(env->fpu->fcr31, 0);
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SET_FP_CAUSE(env->fpu->fcr31, 0);
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#endif
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} |
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/* TLB management */
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void cpu_mips_tlb_flush (CPUState *env, int flush_global) |
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{
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/* Flush qemu's TLB and discard all shadowed entries. */
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tlb_flush (env, flush_global); |
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env->tlb->tlb_in_use = env->tlb->nb_tlb; |
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} |
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static void r4k_mips_tlb_flush_extra (CPUState *env, int first) |
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{
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/* Discard entries from env->tlb[first] onwards. */
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while (env->tlb->tlb_in_use > first) {
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r4k_invalidate_tlb(env, --env->tlb->tlb_in_use, 0);
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} |
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} |
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static void r4k_fill_tlb (int idx) |
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{
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r4k_tlb_t *tlb; |
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/* XXX: detect conflicting TLBs and raise a MCHECK exception when needed */
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tlb = &env->tlb->mmu.r4k.tlb[idx]; |
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tlb->VPN = env->CP0_EntryHi & (TARGET_PAGE_MASK << 1);
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#if defined(TARGET_MIPSN32) || defined(TARGET_MIPS64)
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tlb->VPN &= env->SEGMask; |
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#endif
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tlb->ASID = env->CP0_EntryHi & 0xFF;
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tlb->PageMask = env->CP0_PageMask; |
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tlb->G = env->CP0_EntryLo0 & env->CP0_EntryLo1 & 1;
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tlb->V0 = (env->CP0_EntryLo0 & 2) != 0; |
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tlb->D0 = (env->CP0_EntryLo0 & 4) != 0; |
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tlb->C0 = (env->CP0_EntryLo0 >> 3) & 0x7; |
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tlb->PFN[0] = (env->CP0_EntryLo0 >> 6) << 12; |
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tlb->V1 = (env->CP0_EntryLo1 & 2) != 0; |
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tlb->D1 = (env->CP0_EntryLo1 & 4) != 0; |
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tlb->C1 = (env->CP0_EntryLo1 >> 3) & 0x7; |
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tlb->PFN[1] = (env->CP0_EntryLo1 >> 6) << 12; |
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} |
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|
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void r4k_do_tlbwi (void) |
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{
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/* Discard cached TLB entries. We could avoid doing this if the
|
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tlbwi is just upgrading access permissions on the current entry;
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that might be a further win. */
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r4k_mips_tlb_flush_extra (env, env->tlb->nb_tlb); |
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|
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r4k_invalidate_tlb(env, env->CP0_Index % env->tlb->nb_tlb, 0);
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r4k_fill_tlb(env->CP0_Index % env->tlb->nb_tlb); |
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} |
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|
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void r4k_do_tlbwr (void) |
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{
|
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int r = cpu_mips_get_random(env);
|
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|
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r4k_invalidate_tlb(env, r, 1);
|
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r4k_fill_tlb(r); |
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} |
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|
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void r4k_do_tlbp (void) |
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{
|
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r4k_tlb_t *tlb; |
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target_ulong mask; |
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target_ulong tag; |
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target_ulong VPN; |
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uint8_t ASID; |
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int i;
|
| 417 |
|
| 418 |
ASID = env->CP0_EntryHi & 0xFF;
|
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for (i = 0; i < env->tlb->nb_tlb; i++) { |
| 420 |
tlb = &env->tlb->mmu.r4k.tlb[i]; |
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/* 1k pages are not supported. */
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mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
|
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tag = env->CP0_EntryHi & ~mask; |
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VPN = tlb->VPN & ~mask; |
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/* Check ASID, virtual page number & size */
|
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if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag) { |
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/* TLB match */
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env->CP0_Index = i; |
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break;
|
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} |
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} |
| 432 |
if (i == env->tlb->nb_tlb) {
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/* No match. Discard any shadow entries, if any of them match. */
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for (i = env->tlb->nb_tlb; i < env->tlb->tlb_in_use; i++) {
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tlb = &env->tlb->mmu.r4k.tlb[i]; |
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/* 1k pages are not supported. */
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mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
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tag = env->CP0_EntryHi & ~mask; |
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VPN = tlb->VPN & ~mask; |
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/* Check ASID, virtual page number & size */
|
| 441 |
if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag) { |
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r4k_mips_tlb_flush_extra (env, i); |
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break;
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} |
| 445 |
} |
| 446 |
|
| 447 |
env->CP0_Index |= 0x80000000;
|
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} |
| 449 |
} |
| 450 |
|
| 451 |
void r4k_do_tlbr (void) |
| 452 |
{
|
| 453 |
r4k_tlb_t *tlb; |
| 454 |
uint8_t ASID; |
| 455 |
|
| 456 |
ASID = env->CP0_EntryHi & 0xFF;
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tlb = &env->tlb->mmu.r4k.tlb[env->CP0_Index % env->tlb->nb_tlb]; |
| 458 |
|
| 459 |
/* If this will change the current ASID, flush qemu's TLB. */
|
| 460 |
if (ASID != tlb->ASID)
|
| 461 |
cpu_mips_tlb_flush (env, 1);
|
| 462 |
|
| 463 |
r4k_mips_tlb_flush_extra(env, env->tlb->nb_tlb); |
| 464 |
|
| 465 |
env->CP0_EntryHi = tlb->VPN | tlb->ASID; |
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env->CP0_PageMask = tlb->PageMask; |
| 467 |
env->CP0_EntryLo0 = tlb->G | (tlb->V0 << 1) | (tlb->D0 << 2) | |
| 468 |
(tlb->C0 << 3) | (tlb->PFN[0] >> 6); |
| 469 |
env->CP0_EntryLo1 = tlb->G | (tlb->V1 << 1) | (tlb->D1 << 2) | |
| 470 |
(tlb->C1 << 3) | (tlb->PFN[1] >> 6); |
| 471 |
} |
| 472 |
|
| 473 |
#endif /* !CONFIG_USER_ONLY */ |
| 474 |
|
| 475 |
void dump_ldst (const unsigned char *func) |
| 476 |
{
|
| 477 |
if (loglevel)
|
| 478 |
fprintf(logfile, "%s => " TARGET_FMT_lx " " TARGET_FMT_lx "\n", __func__, T0, T1); |
| 479 |
} |
| 480 |
|
| 481 |
void dump_sc (void) |
| 482 |
{
|
| 483 |
if (loglevel) {
|
| 484 |
fprintf(logfile, "%s " TARGET_FMT_lx " at " TARGET_FMT_lx " (" TARGET_FMT_lx ")\n", __func__, |
| 485 |
T1, T0, env->CP0_LLAddr); |
| 486 |
} |
| 487 |
} |
| 488 |
|
| 489 |
void debug_pre_eret (void) |
| 490 |
{
|
| 491 |
fprintf(logfile, "ERET: PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx, |
| 492 |
env->PC[env->current_tc], env->CP0_EPC); |
| 493 |
if (env->CP0_Status & (1 << CP0St_ERL)) |
| 494 |
fprintf(logfile, " ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
|
| 495 |
if (env->hflags & MIPS_HFLAG_DM)
|
| 496 |
fprintf(logfile, " DEPC " TARGET_FMT_lx, env->CP0_DEPC);
|
| 497 |
fputs("\n", logfile);
|
| 498 |
} |
| 499 |
|
| 500 |
void debug_post_eret (void) |
| 501 |
{
|
| 502 |
fprintf(logfile, " => PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx, |
| 503 |
env->PC[env->current_tc], env->CP0_EPC); |
| 504 |
if (env->CP0_Status & (1 << CP0St_ERL)) |
| 505 |
fprintf(logfile, " ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
|
| 506 |
if (env->hflags & MIPS_HFLAG_DM)
|
| 507 |
fprintf(logfile, " DEPC " TARGET_FMT_lx, env->CP0_DEPC);
|
| 508 |
if (env->hflags & MIPS_HFLAG_UM)
|
| 509 |
fputs(", UM\n", logfile);
|
| 510 |
else
|
| 511 |
fputs("\n", logfile);
|
| 512 |
} |
| 513 |
|
| 514 |
void do_pmon (int function) |
| 515 |
{
|
| 516 |
function /= 2;
|
| 517 |
switch (function) {
|
| 518 |
case 2: /* TODO: char inbyte(int waitflag); */ |
| 519 |
if (env->gpr[4][env->current_tc] == 0) |
| 520 |
env->gpr[2][env->current_tc] = -1; |
| 521 |
/* Fall through */
|
| 522 |
case 11: /* TODO: char inbyte (void); */ |
| 523 |
env->gpr[2][env->current_tc] = -1; |
| 524 |
break;
|
| 525 |
case 3: |
| 526 |
case 12: |
| 527 |
printf("%c", (char)(env->gpr[4][env->current_tc] & 0xFF)); |
| 528 |
break;
|
| 529 |
case 17: |
| 530 |
break;
|
| 531 |
case 158: |
| 532 |
{
|
| 533 |
unsigned char *fmt = (void *)(unsigned long)env->gpr[4][env->current_tc]; |
| 534 |
printf("%s", fmt);
|
| 535 |
} |
| 536 |
break;
|
| 537 |
} |
| 538 |
} |
| 539 |
|
| 540 |
#if !defined(CONFIG_USER_ONLY)
|
| 541 |
|
| 542 |
static void do_unaligned_access (target_ulong addr, int is_write, int is_user, void *retaddr); |
| 543 |
|
| 544 |
#define MMUSUFFIX _mmu
|
| 545 |
#define ALIGNED_ONLY
|
| 546 |
|
| 547 |
#define SHIFT 0 |
| 548 |
#include "softmmu_template.h" |
| 549 |
|
| 550 |
#define SHIFT 1 |
| 551 |
#include "softmmu_template.h" |
| 552 |
|
| 553 |
#define SHIFT 2 |
| 554 |
#include "softmmu_template.h" |
| 555 |
|
| 556 |
#define SHIFT 3 |
| 557 |
#include "softmmu_template.h" |
| 558 |
|
| 559 |
static void do_unaligned_access (target_ulong addr, int is_write, int is_user, void *retaddr) |
| 560 |
{
|
| 561 |
env->CP0_BadVAddr = addr; |
| 562 |
do_restore_state (retaddr); |
| 563 |
do_raise_exception ((is_write == 1) ? EXCP_AdES : EXCP_AdEL);
|
| 564 |
} |
| 565 |
|
| 566 |
void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr) |
| 567 |
{
|
| 568 |
TranslationBlock *tb; |
| 569 |
CPUState *saved_env; |
| 570 |
unsigned long pc; |
| 571 |
int ret;
|
| 572 |
|
| 573 |
/* XXX: hack to restore env in all cases, even if not called from
|
| 574 |
generated code */
|
| 575 |
saved_env = env; |
| 576 |
env = cpu_single_env; |
| 577 |
ret = cpu_mips_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
|
| 578 |
if (ret) {
|
| 579 |
if (retaddr) {
|
| 580 |
/* now we have a real cpu fault */
|
| 581 |
pc = (unsigned long)retaddr; |
| 582 |
tb = tb_find_pc(pc); |
| 583 |
if (tb) {
|
| 584 |
/* the PC is inside the translated code. It means that we have
|
| 585 |
a virtual CPU fault */
|
| 586 |
cpu_restore_state(tb, env, pc, NULL);
|
| 587 |
} |
| 588 |
} |
| 589 |
do_raise_exception_err(env->exception_index, env->error_code); |
| 590 |
} |
| 591 |
env = saved_env; |
| 592 |
} |
| 593 |
|
| 594 |
void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec, |
| 595 |
int unused)
|
| 596 |
{
|
| 597 |
if (is_exec)
|
| 598 |
do_raise_exception(EXCP_IBE); |
| 599 |
else
|
| 600 |
do_raise_exception(EXCP_DBE); |
| 601 |
} |
| 602 |
#endif
|
| 603 |
|
| 604 |
/* Complex FPU operations which may need stack space. */
|
| 605 |
|
| 606 |
#define FLOAT_SIGN32 (1 << 31) |
| 607 |
#define FLOAT_SIGN64 (1ULL << 63) |
| 608 |
#define FLOAT_ONE32 (0x3f8 << 20) |
| 609 |
#define FLOAT_ONE64 (0x3ffULL << 52) |
| 610 |
#define FLOAT_TWO32 (1 << 30) |
| 611 |
#define FLOAT_TWO64 (1ULL << 62) |
| 612 |
#define FLOAT_QNAN32 0x7fbfffff |
| 613 |
#define FLOAT_QNAN64 0x7ff7ffffffffffffULL |
| 614 |
#define FLOAT_SNAN32 0x7fffffff |
| 615 |
#define FLOAT_SNAN64 0x7fffffffffffffffULL |
| 616 |
|
| 617 |
/* convert MIPS rounding mode in FCR31 to IEEE library */
|
| 618 |
unsigned int ieee_rm[] = { |
| 619 |
float_round_nearest_even, |
| 620 |
float_round_to_zero, |
| 621 |
float_round_up, |
| 622 |
float_round_down |
| 623 |
}; |
| 624 |
|
| 625 |
#define RESTORE_ROUNDING_MODE \
|
| 626 |
set_float_rounding_mode(ieee_rm[env->fpu->fcr31 & 3], &env->fpu->fp_status)
|
| 627 |
|
| 628 |
void do_cfc1 (int reg) |
| 629 |
{
|
| 630 |
switch (reg) {
|
| 631 |
case 0: |
| 632 |
T0 = (int32_t)env->fpu->fcr0; |
| 633 |
break;
|
| 634 |
case 25: |
| 635 |
T0 = ((env->fpu->fcr31 >> 24) & 0xfe) | ((env->fpu->fcr31 >> 23) & 0x1); |
| 636 |
break;
|
| 637 |
case 26: |
| 638 |
T0 = env->fpu->fcr31 & 0x0003f07c;
|
| 639 |
break;
|
| 640 |
case 28: |
| 641 |
T0 = (env->fpu->fcr31 & 0x00000f83) | ((env->fpu->fcr31 >> 22) & 0x4); |
| 642 |
break;
|
| 643 |
default:
|
| 644 |
T0 = (int32_t)env->fpu->fcr31; |
| 645 |
break;
|
| 646 |
} |
| 647 |
} |
| 648 |
|
| 649 |
void do_ctc1 (int reg) |
| 650 |
{
|
| 651 |
switch(reg) {
|
| 652 |
case 25: |
| 653 |
if (T0 & 0xffffff00) |
| 654 |
return;
|
| 655 |
env->fpu->fcr31 = (env->fpu->fcr31 & 0x017fffff) | ((T0 & 0xfe) << 24) | |
| 656 |
((T0 & 0x1) << 23); |
| 657 |
break;
|
| 658 |
case 26: |
| 659 |
if (T0 & 0x007c0000) |
| 660 |
return;
|
| 661 |
env->fpu->fcr31 = (env->fpu->fcr31 & 0xfffc0f83) | (T0 & 0x0003f07c); |
| 662 |
break;
|
| 663 |
case 28: |
| 664 |
if (T0 & 0x007c0000) |
| 665 |
return;
|
| 666 |
env->fpu->fcr31 = (env->fpu->fcr31 & 0xfefff07c) | (T0 & 0x00000f83) | |
| 667 |
((T0 & 0x4) << 22); |
| 668 |
break;
|
| 669 |
case 31: |
| 670 |
if (T0 & 0x007c0000) |
| 671 |
return;
|
| 672 |
env->fpu->fcr31 = T0; |
| 673 |
break;
|
| 674 |
default:
|
| 675 |
return;
|
| 676 |
} |
| 677 |
/* set rounding mode */
|
| 678 |
RESTORE_ROUNDING_MODE; |
| 679 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 680 |
if ((GET_FP_ENABLE(env->fpu->fcr31) | 0x20) & GET_FP_CAUSE(env->fpu->fcr31)) |
| 681 |
do_raise_exception(EXCP_FPE); |
| 682 |
} |
| 683 |
|
| 684 |
static always_inline char ieee_ex_to_mips(char xcpt) |
| 685 |
{
|
| 686 |
return (xcpt & float_flag_inexact) >> 5 | |
| 687 |
(xcpt & float_flag_underflow) >> 3 |
|
| 688 |
(xcpt & float_flag_overflow) >> 1 |
|
| 689 |
(xcpt & float_flag_divbyzero) << 1 |
|
| 690 |
(xcpt & float_flag_invalid) << 4;
|
| 691 |
} |
| 692 |
|
| 693 |
static always_inline char mips_ex_to_ieee(char xcpt) |
| 694 |
{
|
| 695 |
return (xcpt & FP_INEXACT) << 5 | |
| 696 |
(xcpt & FP_UNDERFLOW) << 3 |
|
| 697 |
(xcpt & FP_OVERFLOW) << 1 |
|
| 698 |
(xcpt & FP_DIV0) >> 1 |
|
| 699 |
(xcpt & FP_INVALID) >> 4;
|
| 700 |
} |
| 701 |
|
| 702 |
static always_inline void update_fcr31(void) |
| 703 |
{
|
| 704 |
int tmp = ieee_ex_to_mips(get_float_exception_flags(&env->fpu->fp_status));
|
| 705 |
|
| 706 |
SET_FP_CAUSE(env->fpu->fcr31, tmp); |
| 707 |
if (GET_FP_ENABLE(env->fpu->fcr31) & tmp)
|
| 708 |
do_raise_exception(EXCP_FPE); |
| 709 |
else
|
| 710 |
UPDATE_FP_FLAGS(env->fpu->fcr31, tmp); |
| 711 |
} |
| 712 |
|
| 713 |
#define FLOAT_OP(name, p) void do_float_##name##_##p(void) |
| 714 |
|
| 715 |
FLOAT_OP(cvtd, s) |
| 716 |
{
|
| 717 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 718 |
FDT2 = float32_to_float64(FST0, &env->fpu->fp_status); |
| 719 |
update_fcr31(); |
| 720 |
} |
| 721 |
FLOAT_OP(cvtd, w) |
| 722 |
{
|
| 723 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 724 |
FDT2 = int32_to_float64(WT0, &env->fpu->fp_status); |
| 725 |
update_fcr31(); |
| 726 |
} |
| 727 |
FLOAT_OP(cvtd, l) |
| 728 |
{
|
| 729 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 730 |
FDT2 = int64_to_float64(DT0, &env->fpu->fp_status); |
| 731 |
update_fcr31(); |
| 732 |
} |
| 733 |
FLOAT_OP(cvtl, d) |
| 734 |
{
|
| 735 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 736 |
DT2 = float64_to_int64(FDT0, &env->fpu->fp_status); |
| 737 |
update_fcr31(); |
| 738 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 739 |
DT2 = FLOAT_SNAN64; |
| 740 |
} |
| 741 |
FLOAT_OP(cvtl, s) |
| 742 |
{
|
| 743 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 744 |
DT2 = float32_to_int64(FST0, &env->fpu->fp_status); |
| 745 |
update_fcr31(); |
| 746 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 747 |
DT2 = FLOAT_SNAN64; |
| 748 |
} |
| 749 |
|
| 750 |
FLOAT_OP(cvtps, pw) |
| 751 |
{
|
| 752 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 753 |
FST2 = int32_to_float32(WT0, &env->fpu->fp_status); |
| 754 |
FSTH2 = int32_to_float32(WTH0, &env->fpu->fp_status); |
| 755 |
update_fcr31(); |
| 756 |
} |
| 757 |
FLOAT_OP(cvtpw, ps) |
| 758 |
{
|
| 759 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 760 |
WT2 = float32_to_int32(FST0, &env->fpu->fp_status); |
| 761 |
WTH2 = float32_to_int32(FSTH0, &env->fpu->fp_status); |
| 762 |
update_fcr31(); |
| 763 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 764 |
WT2 = FLOAT_SNAN32; |
| 765 |
} |
| 766 |
FLOAT_OP(cvts, d) |
| 767 |
{
|
| 768 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 769 |
FST2 = float64_to_float32(FDT0, &env->fpu->fp_status); |
| 770 |
update_fcr31(); |
| 771 |
} |
| 772 |
FLOAT_OP(cvts, w) |
| 773 |
{
|
| 774 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 775 |
FST2 = int32_to_float32(WT0, &env->fpu->fp_status); |
| 776 |
update_fcr31(); |
| 777 |
} |
| 778 |
FLOAT_OP(cvts, l) |
| 779 |
{
|
| 780 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 781 |
FST2 = int64_to_float32(DT0, &env->fpu->fp_status); |
| 782 |
update_fcr31(); |
| 783 |
} |
| 784 |
FLOAT_OP(cvts, pl) |
| 785 |
{
|
| 786 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 787 |
WT2 = WT0; |
| 788 |
update_fcr31(); |
| 789 |
} |
| 790 |
FLOAT_OP(cvts, pu) |
| 791 |
{
|
| 792 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 793 |
WT2 = WTH0; |
| 794 |
update_fcr31(); |
| 795 |
} |
| 796 |
FLOAT_OP(cvtw, s) |
| 797 |
{
|
| 798 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 799 |
WT2 = float32_to_int32(FST0, &env->fpu->fp_status); |
| 800 |
update_fcr31(); |
| 801 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 802 |
WT2 = FLOAT_SNAN32; |
| 803 |
} |
| 804 |
FLOAT_OP(cvtw, d) |
| 805 |
{
|
| 806 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 807 |
WT2 = float64_to_int32(FDT0, &env->fpu->fp_status); |
| 808 |
update_fcr31(); |
| 809 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 810 |
WT2 = FLOAT_SNAN32; |
| 811 |
} |
| 812 |
|
| 813 |
FLOAT_OP(roundl, d) |
| 814 |
{
|
| 815 |
set_float_rounding_mode(float_round_nearest_even, &env->fpu->fp_status); |
| 816 |
DT2 = float64_to_int64(FDT0, &env->fpu->fp_status); |
| 817 |
RESTORE_ROUNDING_MODE; |
| 818 |
update_fcr31(); |
| 819 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 820 |
DT2 = FLOAT_SNAN64; |
| 821 |
} |
| 822 |
FLOAT_OP(roundl, s) |
| 823 |
{
|
| 824 |
set_float_rounding_mode(float_round_nearest_even, &env->fpu->fp_status); |
| 825 |
DT2 = float32_to_int64(FST0, &env->fpu->fp_status); |
| 826 |
RESTORE_ROUNDING_MODE; |
| 827 |
update_fcr31(); |
| 828 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 829 |
DT2 = FLOAT_SNAN64; |
| 830 |
} |
| 831 |
FLOAT_OP(roundw, d) |
| 832 |
{
|
| 833 |
set_float_rounding_mode(float_round_nearest_even, &env->fpu->fp_status); |
| 834 |
WT2 = float64_to_int32(FDT0, &env->fpu->fp_status); |
| 835 |
RESTORE_ROUNDING_MODE; |
| 836 |
update_fcr31(); |
| 837 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 838 |
WT2 = FLOAT_SNAN32; |
| 839 |
} |
| 840 |
FLOAT_OP(roundw, s) |
| 841 |
{
|
| 842 |
set_float_rounding_mode(float_round_nearest_even, &env->fpu->fp_status); |
| 843 |
WT2 = float32_to_int32(FST0, &env->fpu->fp_status); |
| 844 |
RESTORE_ROUNDING_MODE; |
| 845 |
update_fcr31(); |
| 846 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 847 |
WT2 = FLOAT_SNAN32; |
| 848 |
} |
| 849 |
|
| 850 |
FLOAT_OP(truncl, d) |
| 851 |
{
|
| 852 |
DT2 = float64_to_int64_round_to_zero(FDT0, &env->fpu->fp_status); |
| 853 |
update_fcr31(); |
| 854 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 855 |
DT2 = FLOAT_SNAN64; |
| 856 |
} |
| 857 |
FLOAT_OP(truncl, s) |
| 858 |
{
|
| 859 |
DT2 = float32_to_int64_round_to_zero(FST0, &env->fpu->fp_status); |
| 860 |
update_fcr31(); |
| 861 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 862 |
DT2 = FLOAT_SNAN64; |
| 863 |
} |
| 864 |
FLOAT_OP(truncw, d) |
| 865 |
{
|
| 866 |
WT2 = float64_to_int32_round_to_zero(FDT0, &env->fpu->fp_status); |
| 867 |
update_fcr31(); |
| 868 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 869 |
WT2 = FLOAT_SNAN32; |
| 870 |
} |
| 871 |
FLOAT_OP(truncw, s) |
| 872 |
{
|
| 873 |
WT2 = float32_to_int32_round_to_zero(FST0, &env->fpu->fp_status); |
| 874 |
update_fcr31(); |
| 875 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 876 |
WT2 = FLOAT_SNAN32; |
| 877 |
} |
| 878 |
|
| 879 |
FLOAT_OP(ceill, d) |
| 880 |
{
|
| 881 |
set_float_rounding_mode(float_round_up, &env->fpu->fp_status); |
| 882 |
DT2 = float64_to_int64(FDT0, &env->fpu->fp_status); |
| 883 |
RESTORE_ROUNDING_MODE; |
| 884 |
update_fcr31(); |
| 885 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 886 |
DT2 = FLOAT_SNAN64; |
| 887 |
} |
| 888 |
FLOAT_OP(ceill, s) |
| 889 |
{
|
| 890 |
set_float_rounding_mode(float_round_up, &env->fpu->fp_status); |
| 891 |
DT2 = float32_to_int64(FST0, &env->fpu->fp_status); |
| 892 |
RESTORE_ROUNDING_MODE; |
| 893 |
update_fcr31(); |
| 894 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 895 |
DT2 = FLOAT_SNAN64; |
| 896 |
} |
| 897 |
FLOAT_OP(ceilw, d) |
| 898 |
{
|
| 899 |
set_float_rounding_mode(float_round_up, &env->fpu->fp_status); |
| 900 |
WT2 = float64_to_int32(FDT0, &env->fpu->fp_status); |
| 901 |
RESTORE_ROUNDING_MODE; |
| 902 |
update_fcr31(); |
| 903 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 904 |
WT2 = FLOAT_SNAN32; |
| 905 |
} |
| 906 |
FLOAT_OP(ceilw, s) |
| 907 |
{
|
| 908 |
set_float_rounding_mode(float_round_up, &env->fpu->fp_status); |
| 909 |
WT2 = float32_to_int32(FST0, &env->fpu->fp_status); |
| 910 |
RESTORE_ROUNDING_MODE; |
| 911 |
update_fcr31(); |
| 912 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 913 |
WT2 = FLOAT_SNAN32; |
| 914 |
} |
| 915 |
|
| 916 |
FLOAT_OP(floorl, d) |
| 917 |
{
|
| 918 |
set_float_rounding_mode(float_round_down, &env->fpu->fp_status); |
| 919 |
DT2 = float64_to_int64(FDT0, &env->fpu->fp_status); |
| 920 |
RESTORE_ROUNDING_MODE; |
| 921 |
update_fcr31(); |
| 922 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 923 |
DT2 = FLOAT_SNAN64; |
| 924 |
} |
| 925 |
FLOAT_OP(floorl, s) |
| 926 |
{
|
| 927 |
set_float_rounding_mode(float_round_down, &env->fpu->fp_status); |
| 928 |
DT2 = float32_to_int64(FST0, &env->fpu->fp_status); |
| 929 |
RESTORE_ROUNDING_MODE; |
| 930 |
update_fcr31(); |
| 931 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 932 |
DT2 = FLOAT_SNAN64; |
| 933 |
} |
| 934 |
FLOAT_OP(floorw, d) |
| 935 |
{
|
| 936 |
set_float_rounding_mode(float_round_down, &env->fpu->fp_status); |
| 937 |
WT2 = float64_to_int32(FDT0, &env->fpu->fp_status); |
| 938 |
RESTORE_ROUNDING_MODE; |
| 939 |
update_fcr31(); |
| 940 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 941 |
WT2 = FLOAT_SNAN32; |
| 942 |
} |
| 943 |
FLOAT_OP(floorw, s) |
| 944 |
{
|
| 945 |
set_float_rounding_mode(float_round_down, &env->fpu->fp_status); |
| 946 |
WT2 = float32_to_int32(FST0, &env->fpu->fp_status); |
| 947 |
RESTORE_ROUNDING_MODE; |
| 948 |
update_fcr31(); |
| 949 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
| 950 |
WT2 = FLOAT_SNAN32; |
| 951 |
} |
| 952 |
|
| 953 |
/* MIPS specific unary operations */
|
| 954 |
FLOAT_OP(recip, d) |
| 955 |
{
|
| 956 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 957 |
FDT2 = float64_div(FLOAT_ONE64, FDT0, &env->fpu->fp_status); |
| 958 |
update_fcr31(); |
| 959 |
} |
| 960 |
FLOAT_OP(recip, s) |
| 961 |
{
|
| 962 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 963 |
FST2 = float32_div(FLOAT_ONE32, FST0, &env->fpu->fp_status); |
| 964 |
update_fcr31(); |
| 965 |
} |
| 966 |
|
| 967 |
FLOAT_OP(rsqrt, d) |
| 968 |
{
|
| 969 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 970 |
FDT2 = float64_sqrt(FDT0, &env->fpu->fp_status); |
| 971 |
FDT2 = float64_div(FLOAT_ONE64, FDT2, &env->fpu->fp_status); |
| 972 |
update_fcr31(); |
| 973 |
} |
| 974 |
FLOAT_OP(rsqrt, s) |
| 975 |
{
|
| 976 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 977 |
FST2 = float32_sqrt(FST0, &env->fpu->fp_status); |
| 978 |
FST2 = float32_div(FLOAT_ONE32, FST2, &env->fpu->fp_status); |
| 979 |
update_fcr31(); |
| 980 |
} |
| 981 |
|
| 982 |
FLOAT_OP(recip1, d) |
| 983 |
{
|
| 984 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 985 |
FDT2 = float64_div(FLOAT_ONE64, FDT0, &env->fpu->fp_status); |
| 986 |
update_fcr31(); |
| 987 |
} |
| 988 |
FLOAT_OP(recip1, s) |
| 989 |
{
|
| 990 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 991 |
FST2 = float32_div(FLOAT_ONE32, FST0, &env->fpu->fp_status); |
| 992 |
update_fcr31(); |
| 993 |
} |
| 994 |
FLOAT_OP(recip1, ps) |
| 995 |
{
|
| 996 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 997 |
FST2 = float32_div(FLOAT_ONE32, FST0, &env->fpu->fp_status); |
| 998 |
FSTH2 = float32_div(FLOAT_ONE32, FSTH0, &env->fpu->fp_status); |
| 999 |
update_fcr31(); |
| 1000 |
} |
| 1001 |
|
| 1002 |
FLOAT_OP(rsqrt1, d) |
| 1003 |
{
|
| 1004 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 1005 |
FDT2 = float64_sqrt(FDT0, &env->fpu->fp_status); |
| 1006 |
FDT2 = float64_div(FLOAT_ONE64, FDT2, &env->fpu->fp_status); |
| 1007 |
update_fcr31(); |
| 1008 |
} |
| 1009 |
FLOAT_OP(rsqrt1, s) |
| 1010 |
{
|
| 1011 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 1012 |
FST2 = float32_sqrt(FST0, &env->fpu->fp_status); |
| 1013 |
FST2 = float32_div(FLOAT_ONE32, FST2, &env->fpu->fp_status); |
| 1014 |
update_fcr31(); |
| 1015 |
} |
| 1016 |
FLOAT_OP(rsqrt1, ps) |
| 1017 |
{
|
| 1018 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 1019 |
FST2 = float32_sqrt(FST0, &env->fpu->fp_status); |
| 1020 |
FSTH2 = float32_sqrt(FSTH0, &env->fpu->fp_status); |
| 1021 |
FST2 = float32_div(FLOAT_ONE32, FST2, &env->fpu->fp_status); |
| 1022 |
FSTH2 = float32_div(FLOAT_ONE32, FSTH2, &env->fpu->fp_status); |
| 1023 |
update_fcr31(); |
| 1024 |
} |
| 1025 |
|
| 1026 |
/* binary operations */
|
| 1027 |
#define FLOAT_BINOP(name) \
|
| 1028 |
FLOAT_OP(name, d) \ |
| 1029 |
{ \
|
| 1030 |
set_float_exception_flags(0, &env->fpu->fp_status); \
|
| 1031 |
FDT2 = float64_ ## name (FDT0, FDT1, &env->fpu->fp_status); \ |
| 1032 |
update_fcr31(); \ |
| 1033 |
if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID) \
|
| 1034 |
FDT2 = FLOAT_QNAN64; \ |
| 1035 |
} \ |
| 1036 |
FLOAT_OP(name, s) \ |
| 1037 |
{ \
|
| 1038 |
set_float_exception_flags(0, &env->fpu->fp_status); \
|
| 1039 |
FST2 = float32_ ## name (FST0, FST1, &env->fpu->fp_status); \ |
| 1040 |
update_fcr31(); \ |
| 1041 |
if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID) \
|
| 1042 |
FST2 = FLOAT_QNAN32; \ |
| 1043 |
} \ |
| 1044 |
FLOAT_OP(name, ps) \ |
| 1045 |
{ \
|
| 1046 |
set_float_exception_flags(0, &env->fpu->fp_status); \
|
| 1047 |
FST2 = float32_ ## name (FST0, FST1, &env->fpu->fp_status); \ |
| 1048 |
FSTH2 = float32_ ## name (FSTH0, FSTH1, &env->fpu->fp_status); \ |
| 1049 |
update_fcr31(); \ |
| 1050 |
if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID) { \
|
| 1051 |
FST2 = FLOAT_QNAN32; \ |
| 1052 |
FSTH2 = FLOAT_QNAN32; \ |
| 1053 |
} \ |
| 1054 |
} |
| 1055 |
FLOAT_BINOP(add) |
| 1056 |
FLOAT_BINOP(sub) |
| 1057 |
FLOAT_BINOP(mul) |
| 1058 |
FLOAT_BINOP(div) |
| 1059 |
#undef FLOAT_BINOP
|
| 1060 |
|
| 1061 |
/* MIPS specific binary operations */
|
| 1062 |
FLOAT_OP(recip2, d) |
| 1063 |
{
|
| 1064 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 1065 |
FDT2 = float64_mul(FDT0, FDT2, &env->fpu->fp_status); |
| 1066 |
FDT2 = float64_sub(FDT2, FLOAT_ONE64, &env->fpu->fp_status) ^ FLOAT_SIGN64; |
| 1067 |
update_fcr31(); |
| 1068 |
} |
| 1069 |
FLOAT_OP(recip2, s) |
| 1070 |
{
|
| 1071 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 1072 |
FST2 = float32_mul(FST0, FST2, &env->fpu->fp_status); |
| 1073 |
FST2 = float32_sub(FST2, FLOAT_ONE32, &env->fpu->fp_status) ^ FLOAT_SIGN32; |
| 1074 |
update_fcr31(); |
| 1075 |
} |
| 1076 |
FLOAT_OP(recip2, ps) |
| 1077 |
{
|
| 1078 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 1079 |
FST2 = float32_mul(FST0, FST2, &env->fpu->fp_status); |
| 1080 |
FSTH2 = float32_mul(FSTH0, FSTH2, &env->fpu->fp_status); |
| 1081 |
FST2 = float32_sub(FST2, FLOAT_ONE32, &env->fpu->fp_status) ^ FLOAT_SIGN32; |
| 1082 |
FSTH2 = float32_sub(FSTH2, FLOAT_ONE32, &env->fpu->fp_status) ^ FLOAT_SIGN32; |
| 1083 |
update_fcr31(); |
| 1084 |
} |
| 1085 |
|
| 1086 |
FLOAT_OP(rsqrt2, d) |
| 1087 |
{
|
| 1088 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 1089 |
FDT2 = float64_mul(FDT0, FDT2, &env->fpu->fp_status); |
| 1090 |
FDT2 = float64_sub(FDT2, FLOAT_ONE64, &env->fpu->fp_status); |
| 1091 |
FDT2 = float64_div(FDT2, FLOAT_TWO64, &env->fpu->fp_status) ^ FLOAT_SIGN64; |
| 1092 |
update_fcr31(); |
| 1093 |
} |
| 1094 |
FLOAT_OP(rsqrt2, s) |
| 1095 |
{
|
| 1096 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 1097 |
FST2 = float32_mul(FST0, FST2, &env->fpu->fp_status); |
| 1098 |
FST2 = float32_sub(FST2, FLOAT_ONE32, &env->fpu->fp_status); |
| 1099 |
FST2 = float32_div(FST2, FLOAT_TWO32, &env->fpu->fp_status) ^ FLOAT_SIGN32; |
| 1100 |
update_fcr31(); |
| 1101 |
} |
| 1102 |
FLOAT_OP(rsqrt2, ps) |
| 1103 |
{
|
| 1104 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 1105 |
FST2 = float32_mul(FST0, FST2, &env->fpu->fp_status); |
| 1106 |
FSTH2 = float32_mul(FSTH0, FSTH2, &env->fpu->fp_status); |
| 1107 |
FST2 = float32_sub(FST2, FLOAT_ONE32, &env->fpu->fp_status); |
| 1108 |
FSTH2 = float32_sub(FSTH2, FLOAT_ONE32, &env->fpu->fp_status); |
| 1109 |
FST2 = float32_div(FST2, FLOAT_TWO32, &env->fpu->fp_status) ^ FLOAT_SIGN32; |
| 1110 |
FSTH2 = float32_div(FSTH2, FLOAT_TWO32, &env->fpu->fp_status) ^ FLOAT_SIGN32; |
| 1111 |
update_fcr31(); |
| 1112 |
} |
| 1113 |
|
| 1114 |
FLOAT_OP(addr, ps) |
| 1115 |
{
|
| 1116 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 1117 |
FST2 = float32_add (FST0, FSTH0, &env->fpu->fp_status); |
| 1118 |
FSTH2 = float32_add (FST1, FSTH1, &env->fpu->fp_status); |
| 1119 |
update_fcr31(); |
| 1120 |
} |
| 1121 |
|
| 1122 |
FLOAT_OP(mulr, ps) |
| 1123 |
{
|
| 1124 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
| 1125 |
FST2 = float32_mul (FST0, FSTH0, &env->fpu->fp_status); |
| 1126 |
FSTH2 = float32_mul (FST1, FSTH1, &env->fpu->fp_status); |
| 1127 |
update_fcr31(); |
| 1128 |
} |
| 1129 |
|
| 1130 |
/* compare operations */
|
| 1131 |
#define FOP_COND_D(op, cond) \
|
| 1132 |
void do_cmp_d_ ## op (long cc) \ |
| 1133 |
{ \
|
| 1134 |
int c = cond; \
|
| 1135 |
update_fcr31(); \ |
| 1136 |
if (c) \
|
| 1137 |
SET_FP_COND(cc, env->fpu); \ |
| 1138 |
else \
|
| 1139 |
CLEAR_FP_COND(cc, env->fpu); \ |
| 1140 |
} \ |
| 1141 |
void do_cmpabs_d_ ## op (long cc) \ |
| 1142 |
{ \
|
| 1143 |
int c; \
|
| 1144 |
FDT0 &= ~FLOAT_SIGN64; \ |
| 1145 |
FDT1 &= ~FLOAT_SIGN64; \ |
| 1146 |
c = cond; \ |
| 1147 |
update_fcr31(); \ |
| 1148 |
if (c) \
|
| 1149 |
SET_FP_COND(cc, env->fpu); \ |
| 1150 |
else \
|
| 1151 |
CLEAR_FP_COND(cc, env->fpu); \ |
| 1152 |
} |
| 1153 |
|
| 1154 |
int float64_is_unordered(int sig, float64 a, float64 b STATUS_PARAM) |
| 1155 |
{
|
| 1156 |
if (float64_is_signaling_nan(a) ||
|
| 1157 |
float64_is_signaling_nan(b) || |
| 1158 |
(sig && (float64_is_nan(a) || float64_is_nan(b)))) {
|
| 1159 |
float_raise(float_flag_invalid, status); |
| 1160 |
return 1; |
| 1161 |
} else if (float64_is_nan(a) || float64_is_nan(b)) { |
| 1162 |
return 1; |
| 1163 |
} else {
|
| 1164 |
return 0; |
| 1165 |
} |
| 1166 |
} |
| 1167 |
|
| 1168 |
/* NOTE: the comma operator will make "cond" to eval to false,
|
| 1169 |
* but float*_is_unordered() is still called. */
|
| 1170 |
FOP_COND_D(f, (float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status), 0)) |
| 1171 |
FOP_COND_D(un, float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status))
|
| 1172 |
FOP_COND_D(eq, !float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) && float64_eq(FDT0, FDT1, &env->fpu->fp_status))
|
| 1173 |
FOP_COND_D(ueq, float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) || float64_eq(FDT0, FDT1, &env->fpu->fp_status))
|
| 1174 |
FOP_COND_D(olt, !float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) && float64_lt(FDT0, FDT1, &env->fpu->fp_status))
|
| 1175 |
FOP_COND_D(ult, float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) || float64_lt(FDT0, FDT1, &env->fpu->fp_status))
|
| 1176 |
FOP_COND_D(ole, !float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) && float64_le(FDT0, FDT1, &env->fpu->fp_status))
|
| 1177 |
FOP_COND_D(ule, float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) || float64_le(FDT0, FDT1, &env->fpu->fp_status))
|
| 1178 |
/* NOTE: the comma operator will make "cond" to eval to false,
|
| 1179 |
* but float*_is_unordered() is still called. */
|
| 1180 |
FOP_COND_D(sf, (float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status), 0)) |
| 1181 |
FOP_COND_D(ngle,float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status))
|
| 1182 |
FOP_COND_D(seq, !float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) && float64_eq(FDT0, FDT1, &env->fpu->fp_status))
|
| 1183 |
FOP_COND_D(ngl, float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) || float64_eq(FDT0, FDT1, &env->fpu->fp_status))
|
| 1184 |
FOP_COND_D(lt, !float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) && float64_lt(FDT0, FDT1, &env->fpu->fp_status))
|
| 1185 |
FOP_COND_D(nge, float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) || float64_lt(FDT0, FDT1, &env->fpu->fp_status))
|
| 1186 |
FOP_COND_D(le, !float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) && float64_le(FDT0, FDT1, &env->fpu->fp_status))
|
| 1187 |
FOP_COND_D(ngt, float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) || float64_le(FDT0, FDT1, &env->fpu->fp_status))
|
| 1188 |
|
| 1189 |
#define FOP_COND_S(op, cond) \
|
| 1190 |
void do_cmp_s_ ## op (long cc) \ |
| 1191 |
{ \
|
| 1192 |
int c = cond; \
|
| 1193 |
update_fcr31(); \ |
| 1194 |
if (c) \
|
| 1195 |
SET_FP_COND(cc, env->fpu); \ |
| 1196 |
else \
|
| 1197 |
CLEAR_FP_COND(cc, env->fpu); \ |
| 1198 |
} \ |
| 1199 |
void do_cmpabs_s_ ## op (long cc) \ |
| 1200 |
{ \
|
| 1201 |
int c; \
|
| 1202 |
FST0 &= ~FLOAT_SIGN32; \ |
| 1203 |
FST1 &= ~FLOAT_SIGN32; \ |
| 1204 |
c = cond; \ |
| 1205 |
update_fcr31(); \ |
| 1206 |
if (c) \
|
| 1207 |
SET_FP_COND(cc, env->fpu); \ |
| 1208 |
else \
|
| 1209 |
CLEAR_FP_COND(cc, env->fpu); \ |
| 1210 |
} |
| 1211 |
|
| 1212 |
flag float32_is_unordered(int sig, float32 a, float32 b STATUS_PARAM)
|
| 1213 |
{
|
| 1214 |
if (float32_is_signaling_nan(a) ||
|
| 1215 |
float32_is_signaling_nan(b) || |
| 1216 |
(sig && (float32_is_nan(a) || float32_is_nan(b)))) {
|
| 1217 |
float_raise(float_flag_invalid, status); |
| 1218 |
return 1; |
| 1219 |
} else if (float32_is_nan(a) || float32_is_nan(b)) { |
| 1220 |
return 1; |
| 1221 |
} else {
|
| 1222 |
return 0; |
| 1223 |
} |
| 1224 |
} |
| 1225 |
|
| 1226 |
/* NOTE: the comma operator will make "cond" to eval to false,
|
| 1227 |
* but float*_is_unordered() is still called. */
|
| 1228 |
FOP_COND_S(f, (float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status), 0)) |
| 1229 |
FOP_COND_S(un, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status))
|
| 1230 |
FOP_COND_S(eq, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_eq(FST0, FST1, &env->fpu->fp_status))
|
| 1231 |
FOP_COND_S(ueq, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) || float32_eq(FST0, FST1, &env->fpu->fp_status))
|
| 1232 |
FOP_COND_S(olt, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_lt(FST0, FST1, &env->fpu->fp_status))
|
| 1233 |
FOP_COND_S(ult, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) || float32_lt(FST0, FST1, &env->fpu->fp_status))
|
| 1234 |
FOP_COND_S(ole, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_le(FST0, FST1, &env->fpu->fp_status))
|
| 1235 |
FOP_COND_S(ule, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) || float32_le(FST0, FST1, &env->fpu->fp_status))
|
| 1236 |
/* NOTE: the comma operator will make "cond" to eval to false,
|
| 1237 |
* but float*_is_unordered() is still called. */
|
| 1238 |
FOP_COND_S(sf, (float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status), 0)) |
| 1239 |
FOP_COND_S(ngle,float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status))
|
| 1240 |
FOP_COND_S(seq, !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_eq(FST0, FST1, &env->fpu->fp_status))
|
| 1241 |
FOP_COND_S(ngl, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) || float32_eq(FST0, FST1, &env->fpu->fp_status))
|
| 1242 |
FOP_COND_S(lt, !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_lt(FST0, FST1, &env->fpu->fp_status))
|
| 1243 |
FOP_COND_S(nge, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) || float32_lt(FST0, FST1, &env->fpu->fp_status))
|
| 1244 |
FOP_COND_S(le, !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_le(FST0, FST1, &env->fpu->fp_status))
|
| 1245 |
FOP_COND_S(ngt, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) || float32_le(FST0, FST1, &env->fpu->fp_status))
|
| 1246 |
|
| 1247 |
#define FOP_COND_PS(op, condl, condh) \
|
| 1248 |
void do_cmp_ps_ ## op (long cc) \ |
| 1249 |
{ \
|
| 1250 |
int cl = condl; \
|
| 1251 |
int ch = condh; \
|
| 1252 |
update_fcr31(); \ |
| 1253 |
if (cl) \
|
| 1254 |
SET_FP_COND(cc, env->fpu); \ |
| 1255 |
else \
|
| 1256 |
CLEAR_FP_COND(cc, env->fpu); \ |
| 1257 |
if (ch) \
|
| 1258 |
SET_FP_COND(cc + 1, env->fpu); \
|
| 1259 |
else \
|
| 1260 |
CLEAR_FP_COND(cc + 1, env->fpu); \
|
| 1261 |
} \ |
| 1262 |
void do_cmpabs_ps_ ## op (long cc) \ |
| 1263 |
{ \
|
| 1264 |
int cl, ch; \
|
| 1265 |
FST0 &= ~FLOAT_SIGN32; \ |
| 1266 |
FSTH0 &= ~FLOAT_SIGN32; \ |
| 1267 |
FST1 &= ~FLOAT_SIGN32; \ |
| 1268 |
FSTH1 &= ~FLOAT_SIGN32; \ |
| 1269 |
cl = condl; \ |
| 1270 |
ch = condh; \ |
| 1271 |
update_fcr31(); \ |
| 1272 |
if (cl) \
|
| 1273 |
SET_FP_COND(cc, env->fpu); \ |
| 1274 |
else \
|
| 1275 |
CLEAR_FP_COND(cc, env->fpu); \ |
| 1276 |
if (ch) \
|
| 1277 |
SET_FP_COND(cc + 1, env->fpu); \
|
| 1278 |
else \
|
| 1279 |
CLEAR_FP_COND(cc + 1, env->fpu); \
|
| 1280 |
} |
| 1281 |
|
| 1282 |
/* NOTE: the comma operator will make "cond" to eval to false,
|
| 1283 |
* but float*_is_unordered() is still called. */
|
| 1284 |
FOP_COND_PS(f, (float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status), 0), |
| 1285 |
(float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status), 0)) |
| 1286 |
FOP_COND_PS(un, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status),
|
| 1287 |
float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status))
|
| 1288 |
FOP_COND_PS(eq, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_eq(FST0, FST1, &env->fpu->fp_status),
|
| 1289 |
!float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) && float32_eq(FSTH0, FSTH1, &env->fpu->fp_status))
|
| 1290 |
FOP_COND_PS(ueq, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) || float32_eq(FST0, FST1, &env->fpu->fp_status),
|
| 1291 |
float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) || float32_eq(FSTH0, FSTH1, &env->fpu->fp_status))
|
| 1292 |
FOP_COND_PS(olt, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_lt(FST0, FST1, &env->fpu->fp_status),
|
| 1293 |
!float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) && float32_lt(FSTH0, FSTH1, &env->fpu->fp_status))
|
| 1294 |
FOP_COND_PS(ult, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) || float32_lt(FST0, FST1, &env->fpu->fp_status),
|
| 1295 |
float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) || float32_lt(FSTH0, FSTH1, &env->fpu->fp_status))
|
| 1296 |
FOP_COND_PS(ole, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_le(FST0, FST1, &env->fpu->fp_status),
|
| 1297 |
!float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) && float32_le(FSTH0, FSTH1, &env->fpu->fp_status))
|
| 1298 |
FOP_COND_PS(ule, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) || float32_le(FST0, FST1, &env->fpu->fp_status),
|
| 1299 |
float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) || float32_le(FSTH0, FSTH1, &env->fpu->fp_status))
|
| 1300 |
/* NOTE: the comma operator will make "cond" to eval to false,
|
| 1301 |
* but float*_is_unordered() is still called. */
|
| 1302 |
FOP_COND_PS(sf, (float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status), 0), |
| 1303 |
(float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status), 0)) |
| 1304 |
FOP_COND_PS(ngle,float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status),
|
| 1305 |
float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status))
|
| 1306 |
FOP_COND_PS(seq, !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_eq(FST0, FST1, &env->fpu->fp_status),
|
| 1307 |
!float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) && float32_eq(FSTH0, FSTH1, &env->fpu->fp_status))
|
| 1308 |
FOP_COND_PS(ngl, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) || float32_eq(FST0, FST1, &env->fpu->fp_status),
|
| 1309 |
float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) || float32_eq(FSTH0, FSTH1, &env->fpu->fp_status))
|
| 1310 |
FOP_COND_PS(lt, !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_lt(FST0, FST1, &env->fpu->fp_status),
|
| 1311 |
!float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) && float32_lt(FSTH0, FSTH1, &env->fpu->fp_status))
|
| 1312 |
FOP_COND_PS(nge, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) || float32_lt(FST0, FST1, &env->fpu->fp_status),
|
| 1313 |
float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) || float32_lt(FSTH0, FSTH1, &env->fpu->fp_status))
|
| 1314 |
FOP_COND_PS(le, !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_le(FST0, FST1, &env->fpu->fp_status),
|
| 1315 |
!float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) && float32_le(FSTH0, FSTH1, &env->fpu->fp_status))
|
| 1316 |
FOP_COND_PS(ngt, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) || float32_le(FST0, FST1, &env->fpu->fp_status),
|
| 1317 |
float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) || float32_le(FSTH0, FSTH1, &env->fpu->fp_status))
|