root / target-mips / op_helper.c @ 95af5ce5
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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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#include "host-utils.h" |
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#ifdef __s390__
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# define GETPC() ((void*)((unsigned long)__builtin_return_address(0) & 0x7fffffffUL)) |
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#else
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# define GETPC() (__builtin_return_address(0)) |
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#endif
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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_interrupt_restart (void) |
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{ |
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if (!(env->CP0_Status & (1 << CP0St_EXL)) && |
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!(env->CP0_Status & (1 << CP0St_ERL)) &&
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!(env->hflags & MIPS_HFLAG_DM) && |
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(env->CP0_Status & (1 << CP0St_IE)) &&
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(env->CP0_Status & env->CP0_Cause & CP0Ca_IP_mask)) { |
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env->CP0_Cause &= ~(0x1f << CP0Ca_EC);
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do_raise_exception(EXCP_EXT_INTERRUPT); |
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} |
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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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if (tb) {
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cpu_restore_state (tb, env, pc, NULL);
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} |
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} |
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void do_clo (void) |
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{ |
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T0 = clo32(T0); |
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} |
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void do_clz (void) |
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{ |
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T0 = clz32(T0); |
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} |
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#if 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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tmp = T0 << (0x40 - (32 + T1)); |
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T0 = (T0 >> (32 + T1)) | tmp;
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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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void do_dclo (void) |
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{ |
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T0 = clo64(T0); |
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} |
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void do_dclz (void) |
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{ |
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T0 = clz64(T0); |
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} |
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#endif /* 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[env->current_tc][0] << 32) | (uint32_t)env->LO[env->current_tc][0]; |
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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[env->current_tc][0] = (int32_t)HILO;
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env->HI[env->current_tc][0] = (int32_t)(HILO >> 32); |
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} |
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static always_inline void set_HIT0_LO (uint64_t HILO) |
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{ |
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env->LO[env->current_tc][0] = (int32_t)(HILO & 0xFFFFFFFF); |
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T0 = env->HI[env->current_tc][0] = (int32_t)(HILO >> 32); |
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} |
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static always_inline void set_HI_LOT0 (uint64_t HILO) |
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{ |
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T0 = env->LO[env->current_tc][0] = (int32_t)(HILO & 0xFFFFFFFF); |
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env->HI[env->current_tc][0] = (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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/* Multiplication variants of the vr54xx. */
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void do_muls (void) |
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{ |
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set_HI_LOT0(0 - ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1));
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} |
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void do_mulsu (void) |
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{ |
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set_HI_LOT0(0 - ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1));
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} |
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void do_macc (void) |
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{ |
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set_HI_LOT0(((int64_t)get_HILO()) + ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1)); |
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} |
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void do_macchi (void) |
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{ |
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set_HIT0_LO(((int64_t)get_HILO()) + ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1)); |
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} |
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void do_maccu (void) |
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{ |
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set_HI_LOT0(((uint64_t)get_HILO()) + ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1)); |
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} |
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void do_macchiu (void) |
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{ |
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set_HIT0_LO(((uint64_t)get_HILO()) + ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1)); |
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} |
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void do_msac (void) |
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{ |
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set_HI_LOT0(((int64_t)get_HILO()) - ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1)); |
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} |
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void do_msachi (void) |
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{ |
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set_HIT0_LO(((int64_t)get_HILO()) - ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1)); |
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} |
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void do_msacu (void) |
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{ |
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set_HI_LOT0(((uint64_t)get_HILO()) - ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1)); |
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} |
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void do_msachiu (void) |
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{ |
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set_HIT0_LO(((uint64_t)get_HILO()) - ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1)); |
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} |
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void do_mulhi (void) |
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{ |
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set_HIT0_LO((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1); |
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} |
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void do_mulhiu (void) |
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{ |
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set_HIT0_LO((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1); |
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} |
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void do_mulshi (void) |
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{ |
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set_HIT0_LO(0 - ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1));
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} |
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void do_mulshiu (void) |
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{ |
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set_HIT0_LO(0 - ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1));
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} |
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#endif /* TARGET_LONG_BITS > HOST_LONG_BITS */ |
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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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switch (env->hflags & MIPS_HFLAG_KSU) {
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case MIPS_HFLAG_UM: fputs(", UM\n", logfile); break; |
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case MIPS_HFLAG_SM: fputs(", SM\n", logfile); break; |
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case MIPS_HFLAG_KM: fputs("\n", logfile); break; |
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default: cpu_abort(env, "Invalid MMU mode!\n"); break; |
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} |
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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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} |
411 |
if (flags & float_flag_divbyzero) {
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cpuflags |= FP_DIV0; |
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cause |= FP_DIV0 & enable; |
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} |
415 |
if (flags & float_flag_overflow) {
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cpuflags |= FP_OVERFLOW; |
417 |
cause |= FP_OVERFLOW & enable; |
418 |
} |
419 |
if (flags & float_flag_underflow) {
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cpuflags |= FP_UNDERFLOW; |
421 |
cause |= FP_UNDERFLOW & enable; |
422 |
} |
423 |
if (flags & float_flag_inexact) {
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cpuflags |= FP_INEXACT; |
425 |
cause |= FP_INEXACT & enable; |
426 |
} |
427 |
SET_FP_FLAGS(env->fpu->fcr31, cpuflags); |
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SET_FP_CAUSE(env->fpu->fcr31, cause); |
429 |
#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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} |
434 |
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/* TLB management */
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void cpu_mips_tlb_flush (CPUState *env, int flush_global) |
437 |
{ |
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/* Flush qemu's TLB and discard all shadowed entries. */
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tlb_flush (env, flush_global); |
440 |
env->tlb->tlb_in_use = env->tlb->nb_tlb; |
441 |
} |
442 |
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static void r4k_mips_tlb_flush_extra (CPUState *env, int first) |
444 |
{ |
445 |
/* 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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448 |
} |
449 |
} |
450 |
|
451 |
static void r4k_fill_tlb (int idx) |
452 |
{ |
453 |
r4k_tlb_t *tlb; |
454 |
|
455 |
/* XXX: detect conflicting TLBs and raise a MCHECK exception when needed */
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tlb = &env->tlb->mmu.r4k.tlb[idx]; |
457 |
tlb->VPN = env->CP0_EntryHi & (TARGET_PAGE_MASK << 1);
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#if defined(TARGET_MIPS64)
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tlb->VPN &= env->SEGMask; |
460 |
#endif
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tlb->ASID = env->CP0_EntryHi & 0xFF;
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tlb->PageMask = env->CP0_PageMask; |
463 |
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; |
467 |
tlb->PFN[0] = (env->CP0_EntryLo0 >> 6) << 12; |
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tlb->V1 = (env->CP0_EntryLo1 & 2) != 0; |
469 |
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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} |
473 |
|
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void r4k_do_tlbwi (void) |
475 |
{ |
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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); |
480 |
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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); |
483 |
} |
484 |
|
485 |
void r4k_do_tlbwr (void) |
486 |
{ |
487 |
int r = cpu_mips_get_random(env);
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488 |
|
489 |
r4k_invalidate_tlb(env, r, 1);
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r4k_fill_tlb(r); |
491 |
} |
492 |
|
493 |
void r4k_do_tlbp (void) |
494 |
{ |
495 |
r4k_tlb_t *tlb; |
496 |
target_ulong mask; |
497 |
target_ulong tag; |
498 |
target_ulong VPN; |
499 |
uint8_t ASID; |
500 |
int i;
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501 |
|
502 |
ASID = env->CP0_EntryHi & 0xFF;
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503 |
for (i = 0; i < env->tlb->nb_tlb; i++) { |
504 |
tlb = &env->tlb->mmu.r4k.tlb[i]; |
505 |
/* 1k pages are not supported. */
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506 |
mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
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507 |
tag = env->CP0_EntryHi & ~mask; |
508 |
VPN = tlb->VPN & ~mask; |
509 |
/* Check ASID, virtual page number & size */
|
510 |
if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag) { |
511 |
/* TLB match */
|
512 |
env->CP0_Index = i; |
513 |
break;
|
514 |
} |
515 |
} |
516 |
if (i == env->tlb->nb_tlb) {
|
517 |
/* No match. Discard any shadow entries, if any of them match. */
|
518 |
for (i = env->tlb->nb_tlb; i < env->tlb->tlb_in_use; i++) {
|
519 |
tlb = &env->tlb->mmu.r4k.tlb[i]; |
520 |
/* 1k pages are not supported. */
|
521 |
mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
|
522 |
tag = env->CP0_EntryHi & ~mask; |
523 |
VPN = tlb->VPN & ~mask; |
524 |
/* Check ASID, virtual page number & size */
|
525 |
if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag) { |
526 |
r4k_mips_tlb_flush_extra (env, i); |
527 |
break;
|
528 |
} |
529 |
} |
530 |
|
531 |
env->CP0_Index |= 0x80000000;
|
532 |
} |
533 |
} |
534 |
|
535 |
void r4k_do_tlbr (void) |
536 |
{ |
537 |
r4k_tlb_t *tlb; |
538 |
uint8_t ASID; |
539 |
|
540 |
ASID = env->CP0_EntryHi & 0xFF;
|
541 |
tlb = &env->tlb->mmu.r4k.tlb[env->CP0_Index % env->tlb->nb_tlb]; |
542 |
|
543 |
/* If this will change the current ASID, flush qemu's TLB. */
|
544 |
if (ASID != tlb->ASID)
|
545 |
cpu_mips_tlb_flush (env, 1);
|
546 |
|
547 |
r4k_mips_tlb_flush_extra(env, env->tlb->nb_tlb); |
548 |
|
549 |
env->CP0_EntryHi = tlb->VPN | tlb->ASID; |
550 |
env->CP0_PageMask = tlb->PageMask; |
551 |
env->CP0_EntryLo0 = tlb->G | (tlb->V0 << 1) | (tlb->D0 << 2) | |
552 |
(tlb->C0 << 3) | (tlb->PFN[0] >> 6); |
553 |
env->CP0_EntryLo1 = tlb->G | (tlb->V1 << 1) | (tlb->D1 << 2) | |
554 |
(tlb->C1 << 3) | (tlb->PFN[1] >> 6); |
555 |
} |
556 |
|
557 |
#endif /* !CONFIG_USER_ONLY */ |
558 |
|
559 |
void dump_ldst (const unsigned char *func) |
560 |
{ |
561 |
if (loglevel)
|
562 |
fprintf(logfile, "%s => " TARGET_FMT_lx " " TARGET_FMT_lx "\n", __func__, T0, T1); |
563 |
} |
564 |
|
565 |
void dump_sc (void) |
566 |
{ |
567 |
if (loglevel) {
|
568 |
fprintf(logfile, "%s " TARGET_FMT_lx " at " TARGET_FMT_lx " (" TARGET_FMT_lx ")\n", __func__, |
569 |
T1, T0, env->CP0_LLAddr); |
570 |
} |
571 |
} |
572 |
|
573 |
void debug_pre_eret (void) |
574 |
{ |
575 |
fprintf(logfile, "ERET: PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx, |
576 |
env->PC[env->current_tc], env->CP0_EPC); |
577 |
if (env->CP0_Status & (1 << CP0St_ERL)) |
578 |
fprintf(logfile, " ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
|
579 |
if (env->hflags & MIPS_HFLAG_DM)
|
580 |
fprintf(logfile, " DEPC " TARGET_FMT_lx, env->CP0_DEPC);
|
581 |
fputs("\n", logfile);
|
582 |
} |
583 |
|
584 |
void debug_post_eret (void) |
585 |
{ |
586 |
fprintf(logfile, " => PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx, |
587 |
env->PC[env->current_tc], env->CP0_EPC); |
588 |
if (env->CP0_Status & (1 << CP0St_ERL)) |
589 |
fprintf(logfile, " ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
|
590 |
if (env->hflags & MIPS_HFLAG_DM)
|
591 |
fprintf(logfile, " DEPC " TARGET_FMT_lx, env->CP0_DEPC);
|
592 |
switch (env->hflags & MIPS_HFLAG_KSU) {
|
593 |
case MIPS_HFLAG_UM: fputs(", UM\n", logfile); break; |
594 |
case MIPS_HFLAG_SM: fputs(", SM\n", logfile); break; |
595 |
case MIPS_HFLAG_KM: fputs("\n", logfile); break; |
596 |
default: cpu_abort(env, "Invalid MMU mode!\n"); break; |
597 |
} |
598 |
} |
599 |
|
600 |
void do_pmon (int function) |
601 |
{ |
602 |
function /= 2;
|
603 |
switch (function) {
|
604 |
case 2: /* TODO: char inbyte(int waitflag); */ |
605 |
if (env->gpr[env->current_tc][4] == 0) |
606 |
env->gpr[env->current_tc][2] = -1; |
607 |
/* Fall through */
|
608 |
case 11: /* TODO: char inbyte (void); */ |
609 |
env->gpr[env->current_tc][2] = -1; |
610 |
break;
|
611 |
case 3: |
612 |
case 12: |
613 |
printf("%c", (char)(env->gpr[env->current_tc][4] & 0xFF)); |
614 |
break;
|
615 |
case 17: |
616 |
break;
|
617 |
case 158: |
618 |
{ |
619 |
unsigned char *fmt = (void *)(unsigned long)env->gpr[env->current_tc][4]; |
620 |
printf("%s", fmt);
|
621 |
} |
622 |
break;
|
623 |
} |
624 |
} |
625 |
|
626 |
#if !defined(CONFIG_USER_ONLY)
|
627 |
|
628 |
static void do_unaligned_access (target_ulong addr, int is_write, int is_user, void *retaddr); |
629 |
|
630 |
#define MMUSUFFIX _mmu
|
631 |
#define ALIGNED_ONLY
|
632 |
|
633 |
#define SHIFT 0 |
634 |
#include "softmmu_template.h" |
635 |
|
636 |
#define SHIFT 1 |
637 |
#include "softmmu_template.h" |
638 |
|
639 |
#define SHIFT 2 |
640 |
#include "softmmu_template.h" |
641 |
|
642 |
#define SHIFT 3 |
643 |
#include "softmmu_template.h" |
644 |
|
645 |
static void do_unaligned_access (target_ulong addr, int is_write, int is_user, void *retaddr) |
646 |
{ |
647 |
env->CP0_BadVAddr = addr; |
648 |
do_restore_state (retaddr); |
649 |
do_raise_exception ((is_write == 1) ? EXCP_AdES : EXCP_AdEL);
|
650 |
} |
651 |
|
652 |
void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr) |
653 |
{ |
654 |
TranslationBlock *tb; |
655 |
CPUState *saved_env; |
656 |
unsigned long pc; |
657 |
int ret;
|
658 |
|
659 |
/* XXX: hack to restore env in all cases, even if not called from
|
660 |
generated code */
|
661 |
saved_env = env; |
662 |
env = cpu_single_env; |
663 |
ret = cpu_mips_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
|
664 |
if (ret) {
|
665 |
if (retaddr) {
|
666 |
/* now we have a real cpu fault */
|
667 |
pc = (unsigned long)retaddr; |
668 |
tb = tb_find_pc(pc); |
669 |
if (tb) {
|
670 |
/* the PC is inside the translated code. It means that we have
|
671 |
a virtual CPU fault */
|
672 |
cpu_restore_state(tb, env, pc, NULL);
|
673 |
} |
674 |
} |
675 |
do_raise_exception_err(env->exception_index, env->error_code); |
676 |
} |
677 |
env = saved_env; |
678 |
} |
679 |
|
680 |
void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec, |
681 |
int unused)
|
682 |
{ |
683 |
if (is_exec)
|
684 |
do_raise_exception(EXCP_IBE); |
685 |
else
|
686 |
do_raise_exception(EXCP_DBE); |
687 |
} |
688 |
#endif
|
689 |
|
690 |
/* Complex FPU operations which may need stack space. */
|
691 |
|
692 |
#define FLOAT_ONE32 make_float32(0x3f8 << 20) |
693 |
#define FLOAT_ONE64 make_float64(0x3ffULL << 52) |
694 |
#define FLOAT_TWO32 make_float32(1 << 30) |
695 |
#define FLOAT_TWO64 make_float64(1ULL << 62) |
696 |
#define FLOAT_QNAN32 0x7fbfffff |
697 |
#define FLOAT_QNAN64 0x7ff7ffffffffffffULL |
698 |
#define FLOAT_SNAN32 0x7fffffff |
699 |
#define FLOAT_SNAN64 0x7fffffffffffffffULL |
700 |
|
701 |
/* convert MIPS rounding mode in FCR31 to IEEE library */
|
702 |
unsigned int ieee_rm[] = { |
703 |
float_round_nearest_even, |
704 |
float_round_to_zero, |
705 |
float_round_up, |
706 |
float_round_down |
707 |
}; |
708 |
|
709 |
#define RESTORE_ROUNDING_MODE \
|
710 |
set_float_rounding_mode(ieee_rm[env->fpu->fcr31 & 3], &env->fpu->fp_status)
|
711 |
|
712 |
void do_cfc1 (int reg) |
713 |
{ |
714 |
switch (reg) {
|
715 |
case 0: |
716 |
T0 = (int32_t)env->fpu->fcr0; |
717 |
break;
|
718 |
case 25: |
719 |
T0 = ((env->fpu->fcr31 >> 24) & 0xfe) | ((env->fpu->fcr31 >> 23) & 0x1); |
720 |
break;
|
721 |
case 26: |
722 |
T0 = env->fpu->fcr31 & 0x0003f07c;
|
723 |
break;
|
724 |
case 28: |
725 |
T0 = (env->fpu->fcr31 & 0x00000f83) | ((env->fpu->fcr31 >> 22) & 0x4); |
726 |
break;
|
727 |
default:
|
728 |
T0 = (int32_t)env->fpu->fcr31; |
729 |
break;
|
730 |
} |
731 |
} |
732 |
|
733 |
void do_ctc1 (int reg) |
734 |
{ |
735 |
switch(reg) {
|
736 |
case 25: |
737 |
if (T0 & 0xffffff00) |
738 |
return;
|
739 |
env->fpu->fcr31 = (env->fpu->fcr31 & 0x017fffff) | ((T0 & 0xfe) << 24) | |
740 |
((T0 & 0x1) << 23); |
741 |
break;
|
742 |
case 26: |
743 |
if (T0 & 0x007c0000) |
744 |
return;
|
745 |
env->fpu->fcr31 = (env->fpu->fcr31 & 0xfffc0f83) | (T0 & 0x0003f07c); |
746 |
break;
|
747 |
case 28: |
748 |
if (T0 & 0x007c0000) |
749 |
return;
|
750 |
env->fpu->fcr31 = (env->fpu->fcr31 & 0xfefff07c) | (T0 & 0x00000f83) | |
751 |
((T0 & 0x4) << 22); |
752 |
break;
|
753 |
case 31: |
754 |
if (T0 & 0x007c0000) |
755 |
return;
|
756 |
env->fpu->fcr31 = T0; |
757 |
break;
|
758 |
default:
|
759 |
return;
|
760 |
} |
761 |
/* set rounding mode */
|
762 |
RESTORE_ROUNDING_MODE; |
763 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
764 |
if ((GET_FP_ENABLE(env->fpu->fcr31) | 0x20) & GET_FP_CAUSE(env->fpu->fcr31)) |
765 |
do_raise_exception(EXCP_FPE); |
766 |
} |
767 |
|
768 |
static always_inline char ieee_ex_to_mips(char xcpt) |
769 |
{ |
770 |
return (xcpt & float_flag_inexact) >> 5 | |
771 |
(xcpt & float_flag_underflow) >> 3 |
|
772 |
(xcpt & float_flag_overflow) >> 1 |
|
773 |
(xcpt & float_flag_divbyzero) << 1 |
|
774 |
(xcpt & float_flag_invalid) << 4;
|
775 |
} |
776 |
|
777 |
static always_inline char mips_ex_to_ieee(char xcpt) |
778 |
{ |
779 |
return (xcpt & FP_INEXACT) << 5 | |
780 |
(xcpt & FP_UNDERFLOW) << 3 |
|
781 |
(xcpt & FP_OVERFLOW) << 1 |
|
782 |
(xcpt & FP_DIV0) >> 1 |
|
783 |
(xcpt & FP_INVALID) >> 4;
|
784 |
} |
785 |
|
786 |
static always_inline void update_fcr31(void) |
787 |
{ |
788 |
int tmp = ieee_ex_to_mips(get_float_exception_flags(&env->fpu->fp_status));
|
789 |
|
790 |
SET_FP_CAUSE(env->fpu->fcr31, tmp); |
791 |
if (GET_FP_ENABLE(env->fpu->fcr31) & tmp)
|
792 |
do_raise_exception(EXCP_FPE); |
793 |
else
|
794 |
UPDATE_FP_FLAGS(env->fpu->fcr31, tmp); |
795 |
} |
796 |
|
797 |
#define FLOAT_OP(name, p) void do_float_##name##_##p(void) |
798 |
|
799 |
FLOAT_OP(cvtd, s) |
800 |
{ |
801 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
802 |
FDT2 = float32_to_float64(FST0, &env->fpu->fp_status); |
803 |
update_fcr31(); |
804 |
} |
805 |
FLOAT_OP(cvtd, w) |
806 |
{ |
807 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
808 |
FDT2 = int32_to_float64(WT0, &env->fpu->fp_status); |
809 |
update_fcr31(); |
810 |
} |
811 |
FLOAT_OP(cvtd, l) |
812 |
{ |
813 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
814 |
FDT2 = int64_to_float64(DT0, &env->fpu->fp_status); |
815 |
update_fcr31(); |
816 |
} |
817 |
FLOAT_OP(cvtl, d) |
818 |
{ |
819 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
820 |
DT2 = float64_to_int64(FDT0, &env->fpu->fp_status); |
821 |
update_fcr31(); |
822 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
823 |
DT2 = FLOAT_SNAN64; |
824 |
} |
825 |
FLOAT_OP(cvtl, s) |
826 |
{ |
827 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
828 |
DT2 = float32_to_int64(FST0, &env->fpu->fp_status); |
829 |
update_fcr31(); |
830 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
831 |
DT2 = FLOAT_SNAN64; |
832 |
} |
833 |
|
834 |
FLOAT_OP(cvtps, pw) |
835 |
{ |
836 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
837 |
FST2 = int32_to_float32(WT0, &env->fpu->fp_status); |
838 |
FSTH2 = int32_to_float32(WTH0, &env->fpu->fp_status); |
839 |
update_fcr31(); |
840 |
} |
841 |
FLOAT_OP(cvtpw, ps) |
842 |
{ |
843 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
844 |
WT2 = float32_to_int32(FST0, &env->fpu->fp_status); |
845 |
WTH2 = float32_to_int32(FSTH0, &env->fpu->fp_status); |
846 |
update_fcr31(); |
847 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
848 |
WT2 = FLOAT_SNAN32; |
849 |
} |
850 |
FLOAT_OP(cvts, d) |
851 |
{ |
852 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
853 |
FST2 = float64_to_float32(FDT0, &env->fpu->fp_status); |
854 |
update_fcr31(); |
855 |
} |
856 |
FLOAT_OP(cvts, w) |
857 |
{ |
858 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
859 |
FST2 = int32_to_float32(WT0, &env->fpu->fp_status); |
860 |
update_fcr31(); |
861 |
} |
862 |
FLOAT_OP(cvts, l) |
863 |
{ |
864 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
865 |
FST2 = int64_to_float32(DT0, &env->fpu->fp_status); |
866 |
update_fcr31(); |
867 |
} |
868 |
FLOAT_OP(cvts, pl) |
869 |
{ |
870 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
871 |
WT2 = WT0; |
872 |
update_fcr31(); |
873 |
} |
874 |
FLOAT_OP(cvts, pu) |
875 |
{ |
876 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
877 |
WT2 = WTH0; |
878 |
update_fcr31(); |
879 |
} |
880 |
FLOAT_OP(cvtw, s) |
881 |
{ |
882 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
883 |
WT2 = float32_to_int32(FST0, &env->fpu->fp_status); |
884 |
update_fcr31(); |
885 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
886 |
WT2 = FLOAT_SNAN32; |
887 |
} |
888 |
FLOAT_OP(cvtw, d) |
889 |
{ |
890 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
891 |
WT2 = float64_to_int32(FDT0, &env->fpu->fp_status); |
892 |
update_fcr31(); |
893 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
894 |
WT2 = FLOAT_SNAN32; |
895 |
} |
896 |
|
897 |
FLOAT_OP(roundl, d) |
898 |
{ |
899 |
set_float_rounding_mode(float_round_nearest_even, &env->fpu->fp_status); |
900 |
DT2 = float64_to_int64(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 |
DT2 = FLOAT_SNAN64; |
905 |
} |
906 |
FLOAT_OP(roundl, s) |
907 |
{ |
908 |
set_float_rounding_mode(float_round_nearest_even, &env->fpu->fp_status); |
909 |
DT2 = float32_to_int64(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 |
DT2 = FLOAT_SNAN64; |
914 |
} |
915 |
FLOAT_OP(roundw, d) |
916 |
{ |
917 |
set_float_rounding_mode(float_round_nearest_even, &env->fpu->fp_status); |
918 |
WT2 = float64_to_int32(FDT0, &env->fpu->fp_status); |
919 |
RESTORE_ROUNDING_MODE; |
920 |
update_fcr31(); |
921 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
922 |
WT2 = FLOAT_SNAN32; |
923 |
} |
924 |
FLOAT_OP(roundw, s) |
925 |
{ |
926 |
set_float_rounding_mode(float_round_nearest_even, &env->fpu->fp_status); |
927 |
WT2 = float32_to_int32(FST0, &env->fpu->fp_status); |
928 |
RESTORE_ROUNDING_MODE; |
929 |
update_fcr31(); |
930 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
931 |
WT2 = FLOAT_SNAN32; |
932 |
} |
933 |
|
934 |
FLOAT_OP(truncl, d) |
935 |
{ |
936 |
DT2 = float64_to_int64_round_to_zero(FDT0, &env->fpu->fp_status); |
937 |
update_fcr31(); |
938 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
939 |
DT2 = FLOAT_SNAN64; |
940 |
} |
941 |
FLOAT_OP(truncl, s) |
942 |
{ |
943 |
DT2 = float32_to_int64_round_to_zero(FST0, &env->fpu->fp_status); |
944 |
update_fcr31(); |
945 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
946 |
DT2 = FLOAT_SNAN64; |
947 |
} |
948 |
FLOAT_OP(truncw, d) |
949 |
{ |
950 |
WT2 = float64_to_int32_round_to_zero(FDT0, &env->fpu->fp_status); |
951 |
update_fcr31(); |
952 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
953 |
WT2 = FLOAT_SNAN32; |
954 |
} |
955 |
FLOAT_OP(truncw, s) |
956 |
{ |
957 |
WT2 = float32_to_int32_round_to_zero(FST0, &env->fpu->fp_status); |
958 |
update_fcr31(); |
959 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
960 |
WT2 = FLOAT_SNAN32; |
961 |
} |
962 |
|
963 |
FLOAT_OP(ceill, d) |
964 |
{ |
965 |
set_float_rounding_mode(float_round_up, &env->fpu->fp_status); |
966 |
DT2 = float64_to_int64(FDT0, &env->fpu->fp_status); |
967 |
RESTORE_ROUNDING_MODE; |
968 |
update_fcr31(); |
969 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
970 |
DT2 = FLOAT_SNAN64; |
971 |
} |
972 |
FLOAT_OP(ceill, s) |
973 |
{ |
974 |
set_float_rounding_mode(float_round_up, &env->fpu->fp_status); |
975 |
DT2 = float32_to_int64(FST0, &env->fpu->fp_status); |
976 |
RESTORE_ROUNDING_MODE; |
977 |
update_fcr31(); |
978 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
979 |
DT2 = FLOAT_SNAN64; |
980 |
} |
981 |
FLOAT_OP(ceilw, d) |
982 |
{ |
983 |
set_float_rounding_mode(float_round_up, &env->fpu->fp_status); |
984 |
WT2 = float64_to_int32(FDT0, &env->fpu->fp_status); |
985 |
RESTORE_ROUNDING_MODE; |
986 |
update_fcr31(); |
987 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
988 |
WT2 = FLOAT_SNAN32; |
989 |
} |
990 |
FLOAT_OP(ceilw, s) |
991 |
{ |
992 |
set_float_rounding_mode(float_round_up, &env->fpu->fp_status); |
993 |
WT2 = float32_to_int32(FST0, &env->fpu->fp_status); |
994 |
RESTORE_ROUNDING_MODE; |
995 |
update_fcr31(); |
996 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
997 |
WT2 = FLOAT_SNAN32; |
998 |
} |
999 |
|
1000 |
FLOAT_OP(floorl, d) |
1001 |
{ |
1002 |
set_float_rounding_mode(float_round_down, &env->fpu->fp_status); |
1003 |
DT2 = float64_to_int64(FDT0, &env->fpu->fp_status); |
1004 |
RESTORE_ROUNDING_MODE; |
1005 |
update_fcr31(); |
1006 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
1007 |
DT2 = FLOAT_SNAN64; |
1008 |
} |
1009 |
FLOAT_OP(floorl, s) |
1010 |
{ |
1011 |
set_float_rounding_mode(float_round_down, &env->fpu->fp_status); |
1012 |
DT2 = float32_to_int64(FST0, &env->fpu->fp_status); |
1013 |
RESTORE_ROUNDING_MODE; |
1014 |
update_fcr31(); |
1015 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
1016 |
DT2 = FLOAT_SNAN64; |
1017 |
} |
1018 |
FLOAT_OP(floorw, d) |
1019 |
{ |
1020 |
set_float_rounding_mode(float_round_down, &env->fpu->fp_status); |
1021 |
WT2 = float64_to_int32(FDT0, &env->fpu->fp_status); |
1022 |
RESTORE_ROUNDING_MODE; |
1023 |
update_fcr31(); |
1024 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
1025 |
WT2 = FLOAT_SNAN32; |
1026 |
} |
1027 |
FLOAT_OP(floorw, s) |
1028 |
{ |
1029 |
set_float_rounding_mode(float_round_down, &env->fpu->fp_status); |
1030 |
WT2 = float32_to_int32(FST0, &env->fpu->fp_status); |
1031 |
RESTORE_ROUNDING_MODE; |
1032 |
update_fcr31(); |
1033 |
if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
|
1034 |
WT2 = FLOAT_SNAN32; |
1035 |
} |
1036 |
|
1037 |
/* MIPS specific unary operations */
|
1038 |
FLOAT_OP(recip, d) |
1039 |
{ |
1040 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1041 |
FDT2 = float64_div(FLOAT_ONE64, FDT0, &env->fpu->fp_status); |
1042 |
update_fcr31(); |
1043 |
} |
1044 |
FLOAT_OP(recip, s) |
1045 |
{ |
1046 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1047 |
FST2 = float32_div(FLOAT_ONE32, FST0, &env->fpu->fp_status); |
1048 |
update_fcr31(); |
1049 |
} |
1050 |
|
1051 |
FLOAT_OP(rsqrt, d) |
1052 |
{ |
1053 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1054 |
FDT2 = float64_sqrt(FDT0, &env->fpu->fp_status); |
1055 |
FDT2 = float64_div(FLOAT_ONE64, FDT2, &env->fpu->fp_status); |
1056 |
update_fcr31(); |
1057 |
} |
1058 |
FLOAT_OP(rsqrt, s) |
1059 |
{ |
1060 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1061 |
FST2 = float32_sqrt(FST0, &env->fpu->fp_status); |
1062 |
FST2 = float32_div(FLOAT_ONE32, FST2, &env->fpu->fp_status); |
1063 |
update_fcr31(); |
1064 |
} |
1065 |
|
1066 |
FLOAT_OP(recip1, d) |
1067 |
{ |
1068 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1069 |
FDT2 = float64_div(FLOAT_ONE64, FDT0, &env->fpu->fp_status); |
1070 |
update_fcr31(); |
1071 |
} |
1072 |
FLOAT_OP(recip1, s) |
1073 |
{ |
1074 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1075 |
FST2 = float32_div(FLOAT_ONE32, FST0, &env->fpu->fp_status); |
1076 |
update_fcr31(); |
1077 |
} |
1078 |
FLOAT_OP(recip1, ps) |
1079 |
{ |
1080 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1081 |
FST2 = float32_div(FLOAT_ONE32, FST0, &env->fpu->fp_status); |
1082 |
FSTH2 = float32_div(FLOAT_ONE32, FSTH0, &env->fpu->fp_status); |
1083 |
update_fcr31(); |
1084 |
} |
1085 |
|
1086 |
FLOAT_OP(rsqrt1, d) |
1087 |
{ |
1088 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1089 |
FDT2 = float64_sqrt(FDT0, &env->fpu->fp_status); |
1090 |
FDT2 = float64_div(FLOAT_ONE64, FDT2, &env->fpu->fp_status); |
1091 |
update_fcr31(); |
1092 |
} |
1093 |
FLOAT_OP(rsqrt1, s) |
1094 |
{ |
1095 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1096 |
FST2 = float32_sqrt(FST0, &env->fpu->fp_status); |
1097 |
FST2 = float32_div(FLOAT_ONE32, FST2, &env->fpu->fp_status); |
1098 |
update_fcr31(); |
1099 |
} |
1100 |
FLOAT_OP(rsqrt1, ps) |
1101 |
{ |
1102 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1103 |
FST2 = float32_sqrt(FST0, &env->fpu->fp_status); |
1104 |
FSTH2 = float32_sqrt(FSTH0, &env->fpu->fp_status); |
1105 |
FST2 = float32_div(FLOAT_ONE32, FST2, &env->fpu->fp_status); |
1106 |
FSTH2 = float32_div(FLOAT_ONE32, FSTH2, &env->fpu->fp_status); |
1107 |
update_fcr31(); |
1108 |
} |
1109 |
|
1110 |
/* binary operations */
|
1111 |
#define FLOAT_BINOP(name) \
|
1112 |
FLOAT_OP(name, d) \ |
1113 |
{ \ |
1114 |
set_float_exception_flags(0, &env->fpu->fp_status); \
|
1115 |
FDT2 = float64_ ## name (FDT0, FDT1, &env->fpu->fp_status); \ |
1116 |
update_fcr31(); \ |
1117 |
if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID) \
|
1118 |
DT2 = FLOAT_QNAN64; \ |
1119 |
} \ |
1120 |
FLOAT_OP(name, s) \ |
1121 |
{ \ |
1122 |
set_float_exception_flags(0, &env->fpu->fp_status); \
|
1123 |
FST2 = float32_ ## name (FST0, FST1, &env->fpu->fp_status); \ |
1124 |
update_fcr31(); \ |
1125 |
if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID) \
|
1126 |
WT2 = FLOAT_QNAN32; \ |
1127 |
} \ |
1128 |
FLOAT_OP(name, ps) \ |
1129 |
{ \ |
1130 |
set_float_exception_flags(0, &env->fpu->fp_status); \
|
1131 |
FST2 = float32_ ## name (FST0, FST1, &env->fpu->fp_status); \ |
1132 |
FSTH2 = float32_ ## name (FSTH0, FSTH1, &env->fpu->fp_status); \ |
1133 |
update_fcr31(); \ |
1134 |
if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID) { \
|
1135 |
WT2 = FLOAT_QNAN32; \ |
1136 |
WTH2 = FLOAT_QNAN32; \ |
1137 |
} \ |
1138 |
} |
1139 |
FLOAT_BINOP(add) |
1140 |
FLOAT_BINOP(sub) |
1141 |
FLOAT_BINOP(mul) |
1142 |
FLOAT_BINOP(div) |
1143 |
#undef FLOAT_BINOP
|
1144 |
|
1145 |
/* MIPS specific binary operations */
|
1146 |
FLOAT_OP(recip2, d) |
1147 |
{ |
1148 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1149 |
FDT2 = float64_mul(FDT0, FDT2, &env->fpu->fp_status); |
1150 |
FDT2 = float64_chs(float64_sub(FDT2, FLOAT_ONE64, &env->fpu->fp_status)); |
1151 |
update_fcr31(); |
1152 |
} |
1153 |
FLOAT_OP(recip2, s) |
1154 |
{ |
1155 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1156 |
FST2 = float32_mul(FST0, FST2, &env->fpu->fp_status); |
1157 |
FST2 = float32_chs(float32_sub(FST2, FLOAT_ONE32, &env->fpu->fp_status)); |
1158 |
update_fcr31(); |
1159 |
} |
1160 |
FLOAT_OP(recip2, ps) |
1161 |
{ |
1162 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1163 |
FST2 = float32_mul(FST0, FST2, &env->fpu->fp_status); |
1164 |
FSTH2 = float32_mul(FSTH0, FSTH2, &env->fpu->fp_status); |
1165 |
FST2 = float32_chs(float32_sub(FST2, FLOAT_ONE32, &env->fpu->fp_status)); |
1166 |
FSTH2 = float32_chs(float32_sub(FSTH2, FLOAT_ONE32, &env->fpu->fp_status)); |
1167 |
update_fcr31(); |
1168 |
} |
1169 |
|
1170 |
FLOAT_OP(rsqrt2, d) |
1171 |
{ |
1172 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1173 |
FDT2 = float64_mul(FDT0, FDT2, &env->fpu->fp_status); |
1174 |
FDT2 = float64_sub(FDT2, FLOAT_ONE64, &env->fpu->fp_status); |
1175 |
FDT2 = float64_chs(float64_div(FDT2, FLOAT_TWO64, &env->fpu->fp_status)); |
1176 |
update_fcr31(); |
1177 |
} |
1178 |
FLOAT_OP(rsqrt2, s) |
1179 |
{ |
1180 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1181 |
FST2 = float32_mul(FST0, FST2, &env->fpu->fp_status); |
1182 |
FST2 = float32_sub(FST2, FLOAT_ONE32, &env->fpu->fp_status); |
1183 |
FST2 = float32_chs(float32_div(FST2, FLOAT_TWO32, &env->fpu->fp_status)); |
1184 |
update_fcr31(); |
1185 |
} |
1186 |
FLOAT_OP(rsqrt2, ps) |
1187 |
{ |
1188 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1189 |
FST2 = float32_mul(FST0, FST2, &env->fpu->fp_status); |
1190 |
FSTH2 = float32_mul(FSTH0, FSTH2, &env->fpu->fp_status); |
1191 |
FST2 = float32_sub(FST2, FLOAT_ONE32, &env->fpu->fp_status); |
1192 |
FSTH2 = float32_sub(FSTH2, FLOAT_ONE32, &env->fpu->fp_status); |
1193 |
FST2 = float32_chs(float32_div(FST2, FLOAT_TWO32, &env->fpu->fp_status)); |
1194 |
FSTH2 = float32_chs(float32_div(FSTH2, FLOAT_TWO32, &env->fpu->fp_status)); |
1195 |
update_fcr31(); |
1196 |
} |
1197 |
|
1198 |
FLOAT_OP(addr, ps) |
1199 |
{ |
1200 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1201 |
FST2 = float32_add (FST0, FSTH0, &env->fpu->fp_status); |
1202 |
FSTH2 = float32_add (FST1, FSTH1, &env->fpu->fp_status); |
1203 |
update_fcr31(); |
1204 |
} |
1205 |
|
1206 |
FLOAT_OP(mulr, ps) |
1207 |
{ |
1208 |
set_float_exception_flags(0, &env->fpu->fp_status);
|
1209 |
FST2 = float32_mul (FST0, FSTH0, &env->fpu->fp_status); |
1210 |
FSTH2 = float32_mul (FST1, FSTH1, &env->fpu->fp_status); |
1211 |
update_fcr31(); |
1212 |
} |
1213 |
|
1214 |
/* compare operations */
|
1215 |
#define FOP_COND_D(op, cond) \
|
1216 |
void do_cmp_d_ ## op (long cc) \ |
1217 |
{ \ |
1218 |
int c = cond; \
|
1219 |
update_fcr31(); \ |
1220 |
if (c) \
|
1221 |
SET_FP_COND(cc, env->fpu); \ |
1222 |
else \
|
1223 |
CLEAR_FP_COND(cc, env->fpu); \ |
1224 |
} \ |
1225 |
void do_cmpabs_d_ ## op (long cc) \ |
1226 |
{ \ |
1227 |
int c; \
|
1228 |
FDT0 = float64_abs(FDT0); \ |
1229 |
FDT1 = float64_abs(FDT1); \ |
1230 |
c = cond; \ |
1231 |
update_fcr31(); \ |
1232 |
if (c) \
|
1233 |
SET_FP_COND(cc, env->fpu); \ |
1234 |
else \
|
1235 |
CLEAR_FP_COND(cc, env->fpu); \ |
1236 |
} |
1237 |
|
1238 |
int float64_is_unordered(int sig, float64 a, float64 b STATUS_PARAM) |
1239 |
{ |
1240 |
if (float64_is_signaling_nan(a) ||
|
1241 |
float64_is_signaling_nan(b) || |
1242 |
(sig && (float64_is_nan(a) || float64_is_nan(b)))) { |
1243 |
float_raise(float_flag_invalid, status); |
1244 |
return 1; |
1245 |
} else if (float64_is_nan(a) || float64_is_nan(b)) { |
1246 |
return 1; |
1247 |
} else {
|
1248 |
return 0; |
1249 |
} |
1250 |
} |
1251 |
|
1252 |
/* NOTE: the comma operator will make "cond" to eval to false,
|
1253 |
* but float*_is_unordered() is still called. */
|
1254 |
FOP_COND_D(f, (float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status), 0)) |
1255 |
FOP_COND_D(un, float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status))
|
1256 |
FOP_COND_D(eq, !float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) && float64_eq(FDT0, FDT1, &env->fpu->fp_status))
|
1257 |
FOP_COND_D(ueq, float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) || float64_eq(FDT0, FDT1, &env->fpu->fp_status))
|
1258 |
FOP_COND_D(olt, !float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) && float64_lt(FDT0, FDT1, &env->fpu->fp_status))
|
1259 |
FOP_COND_D(ult, float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) || float64_lt(FDT0, FDT1, &env->fpu->fp_status))
|
1260 |
FOP_COND_D(ole, !float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) && float64_le(FDT0, FDT1, &env->fpu->fp_status))
|
1261 |
FOP_COND_D(ule, float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) || float64_le(FDT0, FDT1, &env->fpu->fp_status))
|
1262 |
/* NOTE: the comma operator will make "cond" to eval to false,
|
1263 |
* but float*_is_unordered() is still called. */
|
1264 |
FOP_COND_D(sf, (float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status), 0)) |
1265 |
FOP_COND_D(ngle,float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status))
|
1266 |
FOP_COND_D(seq, !float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) && float64_eq(FDT0, FDT1, &env->fpu->fp_status))
|
1267 |
FOP_COND_D(ngl, float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) || float64_eq(FDT0, FDT1, &env->fpu->fp_status))
|
1268 |
FOP_COND_D(lt, !float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) && float64_lt(FDT0, FDT1, &env->fpu->fp_status))
|
1269 |
FOP_COND_D(nge, float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) || float64_lt(FDT0, FDT1, &env->fpu->fp_status))
|
1270 |
FOP_COND_D(le, !float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) && float64_le(FDT0, FDT1, &env->fpu->fp_status))
|
1271 |
FOP_COND_D(ngt, float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) || float64_le(FDT0, FDT1, &env->fpu->fp_status))
|
1272 |
|
1273 |
#define FOP_COND_S(op, cond) \
|
1274 |
void do_cmp_s_ ## op (long cc) \ |
1275 |
{ \ |
1276 |
int c = cond; \
|
1277 |
update_fcr31(); \ |
1278 |
if (c) \
|
1279 |
SET_FP_COND(cc, env->fpu); \ |
1280 |
else \
|
1281 |
CLEAR_FP_COND(cc, env->fpu); \ |
1282 |
} \ |
1283 |
void do_cmpabs_s_ ## op (long cc) \ |
1284 |
{ \ |
1285 |
int c; \
|
1286 |
FST0 = float32_abs(FST0); \ |
1287 |
FST1 = float32_abs(FST1); \ |
1288 |
c = cond; \ |
1289 |
update_fcr31(); \ |
1290 |
if (c) \
|
1291 |
SET_FP_COND(cc, env->fpu); \ |
1292 |
else \
|
1293 |
CLEAR_FP_COND(cc, env->fpu); \ |
1294 |
} |
1295 |
|
1296 |
flag float32_is_unordered(int sig, float32 a, float32 b STATUS_PARAM)
|
1297 |
{ |
1298 |
if (float32_is_signaling_nan(a) ||
|
1299 |
float32_is_signaling_nan(b) || |
1300 |
(sig && (float32_is_nan(a) || float32_is_nan(b)))) { |
1301 |
float_raise(float_flag_invalid, status); |
1302 |
return 1; |
1303 |
} else if (float32_is_nan(a) || float32_is_nan(b)) { |
1304 |
return 1; |
1305 |
} else {
|
1306 |
return 0; |
1307 |
} |
1308 |
} |
1309 |
|
1310 |
/* NOTE: the comma operator will make "cond" to eval to false,
|
1311 |
* but float*_is_unordered() is still called. */
|
1312 |
FOP_COND_S(f, (float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status), 0)) |
1313 |
FOP_COND_S(un, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status))
|
1314 |
FOP_COND_S(eq, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_eq(FST0, FST1, &env->fpu->fp_status))
|
1315 |
FOP_COND_S(ueq, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) || float32_eq(FST0, FST1, &env->fpu->fp_status))
|
1316 |
FOP_COND_S(olt, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_lt(FST0, FST1, &env->fpu->fp_status))
|
1317 |
FOP_COND_S(ult, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) || float32_lt(FST0, FST1, &env->fpu->fp_status))
|
1318 |
FOP_COND_S(ole, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_le(FST0, FST1, &env->fpu->fp_status))
|
1319 |
FOP_COND_S(ule, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) || float32_le(FST0, FST1, &env->fpu->fp_status))
|
1320 |
/* NOTE: the comma operator will make "cond" to eval to false,
|
1321 |
* but float*_is_unordered() is still called. */
|
1322 |
FOP_COND_S(sf, (float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status), 0)) |
1323 |
FOP_COND_S(ngle,float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status))
|
1324 |
FOP_COND_S(seq, !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_eq(FST0, FST1, &env->fpu->fp_status))
|
1325 |
FOP_COND_S(ngl, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) || float32_eq(FST0, FST1, &env->fpu->fp_status))
|
1326 |
FOP_COND_S(lt, !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_lt(FST0, FST1, &env->fpu->fp_status))
|
1327 |
FOP_COND_S(nge, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) || float32_lt(FST0, FST1, &env->fpu->fp_status))
|
1328 |
FOP_COND_S(le, !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_le(FST0, FST1, &env->fpu->fp_status))
|
1329 |
FOP_COND_S(ngt, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) || float32_le(FST0, FST1, &env->fpu->fp_status))
|
1330 |
|
1331 |
#define FOP_COND_PS(op, condl, condh) \
|
1332 |
void do_cmp_ps_ ## op (long cc) \ |
1333 |
{ \ |
1334 |
int cl = condl; \
|
1335 |
int ch = condh; \
|
1336 |
update_fcr31(); \ |
1337 |
if (cl) \
|
1338 |
SET_FP_COND(cc, env->fpu); \ |
1339 |
else \
|
1340 |
CLEAR_FP_COND(cc, env->fpu); \ |
1341 |
if (ch) \
|
1342 |
SET_FP_COND(cc + 1, env->fpu); \
|
1343 |
else \
|
1344 |
CLEAR_FP_COND(cc + 1, env->fpu); \
|
1345 |
} \ |
1346 |
void do_cmpabs_ps_ ## op (long cc) \ |
1347 |
{ \ |
1348 |
int cl, ch; \
|
1349 |
FST0 = float32_abs(FST0); \ |
1350 |
FSTH0 = float32_abs(FSTH0); \ |
1351 |
FST1 = float32_abs(FST1); \ |
1352 |
FSTH1 = float32_abs(FSTH1); \ |
1353 |
cl = condl; \ |
1354 |
ch = condh; \ |
1355 |
update_fcr31(); \ |
1356 |
if (cl) \
|
1357 |
SET_FP_COND(cc, env->fpu); \ |
1358 |
else \
|
1359 |
CLEAR_FP_COND(cc, env->fpu); \ |
1360 |
if (ch) \
|
1361 |
SET_FP_COND(cc + 1, env->fpu); \
|
1362 |
else \
|
1363 |
CLEAR_FP_COND(cc + 1, env->fpu); \
|
1364 |
} |
1365 |
|
1366 |
/* NOTE: the comma operator will make "cond" to eval to false,
|
1367 |
* but float*_is_unordered() is still called. */
|
1368 |
FOP_COND_PS(f, (float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status), 0), |
1369 |
(float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status), 0)) |
1370 |
FOP_COND_PS(un, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status),
|
1371 |
float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status))
|
1372 |
FOP_COND_PS(eq, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_eq(FST0, FST1, &env->fpu->fp_status),
|
1373 |
!float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) && float32_eq(FSTH0, FSTH1, &env->fpu->fp_status))
|
1374 |
FOP_COND_PS(ueq, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) || float32_eq(FST0, FST1, &env->fpu->fp_status),
|
1375 |
float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) || float32_eq(FSTH0, FSTH1, &env->fpu->fp_status))
|
1376 |
FOP_COND_PS(olt, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_lt(FST0, FST1, &env->fpu->fp_status),
|
1377 |
!float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) && float32_lt(FSTH0, FSTH1, &env->fpu->fp_status))
|
1378 |
FOP_COND_PS(ult, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) || float32_lt(FST0, FST1, &env->fpu->fp_status),
|
1379 |
float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) || float32_lt(FSTH0, FSTH1, &env->fpu->fp_status))
|
1380 |
FOP_COND_PS(ole, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_le(FST0, FST1, &env->fpu->fp_status),
|
1381 |
!float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) && float32_le(FSTH0, FSTH1, &env->fpu->fp_status))
|
1382 |
FOP_COND_PS(ule, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) || float32_le(FST0, FST1, &env->fpu->fp_status),
|
1383 |
float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) || float32_le(FSTH0, FSTH1, &env->fpu->fp_status))
|
1384 |
/* NOTE: the comma operator will make "cond" to eval to false,
|
1385 |
* but float*_is_unordered() is still called. */
|
1386 |
FOP_COND_PS(sf, (float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status), 0), |
1387 |
(float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status), 0)) |
1388 |
FOP_COND_PS(ngle,float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status),
|
1389 |
float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status))
|
1390 |
FOP_COND_PS(seq, !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_eq(FST0, FST1, &env->fpu->fp_status),
|
1391 |
!float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) && float32_eq(FSTH0, FSTH1, &env->fpu->fp_status))
|
1392 |
FOP_COND_PS(ngl, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) || float32_eq(FST0, FST1, &env->fpu->fp_status),
|
1393 |
float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) || float32_eq(FSTH0, FSTH1, &env->fpu->fp_status))
|
1394 |
FOP_COND_PS(lt, !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_lt(FST0, FST1, &env->fpu->fp_status),
|
1395 |
!float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) && float32_lt(FSTH0, FSTH1, &env->fpu->fp_status))
|
1396 |
FOP_COND_PS(nge, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) || float32_lt(FST0, FST1, &env->fpu->fp_status),
|
1397 |
float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) || float32_lt(FSTH0, FSTH1, &env->fpu->fp_status))
|
1398 |
FOP_COND_PS(le, !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_le(FST0, FST1, &env->fpu->fp_status),
|
1399 |
!float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) && float32_le(FSTH0, FSTH1, &env->fpu->fp_status))
|
1400 |
FOP_COND_PS(ngt, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) || float32_le(FST0, FST1, &env->fpu->fp_status),
|
1401 |
float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) || float32_le(FSTH0, FSTH1, &env->fpu->fp_status))
|