root / target-ppc / op_helper.c @ 01feec08
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/*
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* PowerPC emulation helpers for qemu.
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*
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* Copyright (c) 2003-2007 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 "exec.h" |
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#include "host-utils.h" |
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#include "helper.h" |
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#include "helper_regs.h" |
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//#define DEBUG_OP
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//#define DEBUG_EXCEPTIONS
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//#define DEBUG_SOFTWARE_TLB
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/*****************************************************************************/
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/* Exceptions processing helpers */
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void helper_raise_exception_err (uint32_t exception, uint32_t error_code)
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{
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#if 0
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printf("Raise exception %3x code : %d\n", 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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cpu_loop_exit(); |
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} |
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|
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void helper_raise_exception (uint32_t exception)
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{
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helper_raise_exception_err(exception, 0);
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} |
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/*****************************************************************************/
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/* Registers load and stores */
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target_ulong helper_load_cr (void)
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{
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return (env->crf[0] << 28) | |
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(env->crf[1] << 24) | |
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(env->crf[2] << 20) | |
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(env->crf[3] << 16) | |
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(env->crf[4] << 12) | |
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(env->crf[5] << 8) | |
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(env->crf[6] << 4) | |
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(env->crf[7] << 0); |
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} |
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void helper_store_cr (target_ulong val, uint32_t mask)
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{
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int i, sh;
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for (i = 0, sh = 7; i < 8; i++, sh--) { |
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if (mask & (1 << sh)) |
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env->crf[i] = (val >> (sh * 4)) & 0xFUL; |
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} |
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} |
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/*****************************************************************************/
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/* SPR accesses */
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void helper_load_dump_spr (uint32_t sprn)
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{
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if (loglevel != 0) { |
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fprintf(logfile, "Read SPR %d %03x => " ADDRX "\n", |
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sprn, sprn, env->spr[sprn]); |
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} |
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} |
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void helper_store_dump_spr (uint32_t sprn)
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{
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if (loglevel != 0) { |
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fprintf(logfile, "Write SPR %d %03x <= " ADDRX "\n", |
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sprn, sprn, env->spr[sprn]); |
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} |
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} |
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target_ulong helper_load_tbl (void)
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{
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return cpu_ppc_load_tbl(env);
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} |
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target_ulong helper_load_tbu (void)
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{
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return cpu_ppc_load_tbu(env);
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} |
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target_ulong helper_load_atbl (void)
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{
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return cpu_ppc_load_atbl(env);
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} |
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target_ulong helper_load_atbu (void)
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{
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return cpu_ppc_load_atbu(env);
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} |
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target_ulong helper_load_601_rtcl (void)
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{
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return cpu_ppc601_load_rtcl(env);
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} |
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target_ulong helper_load_601_rtcu (void)
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{
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return cpu_ppc601_load_rtcu(env);
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} |
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#if !defined(CONFIG_USER_ONLY)
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#if defined (TARGET_PPC64)
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void helper_store_asr (target_ulong val)
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{
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ppc_store_asr(env, val); |
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} |
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#endif
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void helper_store_sdr1 (target_ulong val)
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{
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ppc_store_sdr1(env, val); |
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} |
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void helper_store_tbl (target_ulong val)
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{
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cpu_ppc_store_tbl(env, val); |
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} |
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void helper_store_tbu (target_ulong val)
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{
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cpu_ppc_store_tbu(env, val); |
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} |
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void helper_store_atbl (target_ulong val)
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{
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cpu_ppc_store_atbl(env, val); |
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} |
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void helper_store_atbu (target_ulong val)
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{
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cpu_ppc_store_atbu(env, val); |
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} |
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void helper_store_601_rtcl (target_ulong val)
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{
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cpu_ppc601_store_rtcl(env, val); |
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} |
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void helper_store_601_rtcu (target_ulong val)
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{
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cpu_ppc601_store_rtcu(env, val); |
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} |
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target_ulong helper_load_decr (void)
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{
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return cpu_ppc_load_decr(env);
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} |
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void helper_store_decr (target_ulong val)
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{
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cpu_ppc_store_decr(env, val); |
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} |
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void helper_store_hid0_601 (target_ulong val)
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{
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target_ulong hid0; |
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hid0 = env->spr[SPR_HID0]; |
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if ((val ^ hid0) & 0x00000008) { |
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/* Change current endianness */
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env->hflags &= ~(1 << MSR_LE);
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env->hflags_nmsr &= ~(1 << MSR_LE);
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env->hflags_nmsr |= (1 << MSR_LE) & (((val >> 3) & 1) << MSR_LE); |
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env->hflags |= env->hflags_nmsr; |
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if (loglevel != 0) { |
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fprintf(logfile, "%s: set endianness to %c => " ADDRX "\n", |
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__func__, val & 0x8 ? 'l' : 'b', env->hflags); |
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} |
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} |
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env->spr[SPR_HID0] = (uint32_t)val; |
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} |
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void helper_store_403_pbr (uint32_t num, target_ulong value)
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{
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if (likely(env->pb[num] != value)) {
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env->pb[num] = value; |
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/* Should be optimized */
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tlb_flush(env, 1);
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} |
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} |
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target_ulong helper_load_40x_pit (void)
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{
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return load_40x_pit(env);
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} |
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void helper_store_40x_pit (target_ulong val)
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{
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store_40x_pit(env, val); |
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} |
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void helper_store_40x_dbcr0 (target_ulong val)
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{
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store_40x_dbcr0(env, val); |
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} |
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void helper_store_40x_sler (target_ulong val)
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{
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store_40x_sler(env, val); |
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} |
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void helper_store_booke_tcr (target_ulong val)
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{
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store_booke_tcr(env, val); |
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} |
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void helper_store_booke_tsr (target_ulong val)
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{
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store_booke_tsr(env, val); |
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} |
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void helper_store_ibatu (uint32_t nr, target_ulong val)
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{
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ppc_store_ibatu(env, nr, val); |
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} |
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void helper_store_ibatl (uint32_t nr, target_ulong val)
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{
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ppc_store_ibatl(env, nr, val); |
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} |
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void helper_store_dbatu (uint32_t nr, target_ulong val)
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{
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ppc_store_dbatu(env, nr, val); |
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} |
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void helper_store_dbatl (uint32_t nr, target_ulong val)
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{
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ppc_store_dbatl(env, nr, val); |
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} |
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void helper_store_601_batl (uint32_t nr, target_ulong val)
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{
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ppc_store_ibatl_601(env, nr, val); |
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} |
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void helper_store_601_batu (uint32_t nr, target_ulong val)
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{
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ppc_store_ibatu_601(env, nr, val); |
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} |
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#endif
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/*****************************************************************************/
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/* Memory load and stores */
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static always_inline target_ulong addr_add(target_ulong addr, target_long arg)
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{
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#if defined(TARGET_PPC64)
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if (!msr_sf)
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return (uint32_t)(addr + arg);
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else
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#endif
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return addr + arg;
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} |
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void helper_lmw (target_ulong addr, uint32_t reg)
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{
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for (; reg < 32; reg++) { |
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if (msr_le)
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env->gpr[reg] = bswap32(ldl(addr)); |
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else
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env->gpr[reg] = ldl(addr); |
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addr = addr_add(addr, 4);
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} |
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} |
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void helper_stmw (target_ulong addr, uint32_t reg)
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{
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for (; reg < 32; reg++) { |
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if (msr_le)
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stl(addr, bswap32((uint32_t)env->gpr[reg])); |
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else
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stl(addr, (uint32_t)env->gpr[reg]); |
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addr = addr_add(addr, 4);
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} |
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} |
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void helper_lsw(target_ulong addr, uint32_t nb, uint32_t reg)
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{
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int sh;
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for (; nb > 3; nb -= 4) { |
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env->gpr[reg] = ldl(addr); |
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reg = (reg + 1) % 32; |
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addr = addr_add(addr, 4);
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} |
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if (unlikely(nb > 0)) { |
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env->gpr[reg] = 0;
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for (sh = 24; nb > 0; nb--, sh -= 8) { |
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env->gpr[reg] |= ldub(addr) << sh; |
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addr = addr_add(addr, 1);
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} |
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} |
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} |
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/* PPC32 specification says we must generate an exception if
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* rA is in the range of registers to be loaded.
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* In an other hand, IBM says this is valid, but rA won't be loaded.
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* For now, I'll follow the spec...
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*/
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void helper_lswx(target_ulong addr, uint32_t reg, uint32_t ra, uint32_t rb)
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{
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if (likely(xer_bc != 0)) { |
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if (unlikely((ra != 0 && reg < ra && (reg + xer_bc) > ra) || |
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(reg < rb && (reg + xer_bc) > rb))) {
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helper_raise_exception_err(POWERPC_EXCP_PROGRAM, |
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POWERPC_EXCP_INVAL | |
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POWERPC_EXCP_INVAL_LSWX); |
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} else {
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helper_lsw(addr, xer_bc, reg); |
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} |
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} |
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} |
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void helper_stsw(target_ulong addr, uint32_t nb, uint32_t reg)
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{
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int sh;
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for (; nb > 3; nb -= 4) { |
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stl(addr, env->gpr[reg]); |
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reg = (reg + 1) % 32; |
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addr = addr_add(addr, 4);
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} |
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if (unlikely(nb > 0)) { |
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for (sh = 24; nb > 0; nb--, sh -= 8) |
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stb(addr, (env->gpr[reg] >> sh) & 0xFF);
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addr = addr_add(addr, 1);
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} |
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} |
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static void do_dcbz(target_ulong addr, int dcache_line_size) |
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{
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addr &= ~(dcache_line_size - 1);
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int i;
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for (i = 0 ; i < dcache_line_size ; i += 4) { |
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stl(addr + i , 0);
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} |
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if (env->reserve == addr)
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env->reserve = (target_ulong)-1ULL;
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} |
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void helper_dcbz(target_ulong addr)
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{
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do_dcbz(addr, env->dcache_line_size); |
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} |
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void helper_dcbz_970(target_ulong addr)
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{
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if (((env->spr[SPR_970_HID5] >> 7) & 0x3) == 1) |
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do_dcbz(addr, 32);
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else
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do_dcbz(addr, env->dcache_line_size); |
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} |
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void helper_icbi(target_ulong addr)
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{
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uint32_t tmp; |
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addr &= ~(env->dcache_line_size - 1);
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/* Invalidate one cache line :
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* PowerPC specification says this is to be treated like a load
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* (not a fetch) by the MMU. To be sure it will be so,
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* do the load "by hand".
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*/
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tmp = ldl(addr); |
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tb_invalidate_page_range(addr, addr + env->icache_line_size); |
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} |
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// XXX: to be tested
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target_ulong helper_lscbx (target_ulong addr, uint32_t reg, uint32_t ra, uint32_t rb) |
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{
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int i, c, d;
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d = 24;
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for (i = 0; i < xer_bc; i++) { |
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c = ldub(addr); |
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addr = addr_add(addr, 1);
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/* ra (if not 0) and rb are never modified */
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if (likely(reg != rb && (ra == 0 || reg != ra))) { |
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env->gpr[reg] = (env->gpr[reg] & ~(0xFF << d)) | (c << d);
|
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} |
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if (unlikely(c == xer_cmp))
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break;
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if (likely(d != 0)) { |
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d -= 8;
|
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} else {
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d = 24;
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reg++; |
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reg = reg & 0x1F;
|
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} |
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} |
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return i;
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} |
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/*****************************************************************************/
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/* Fixed point operations helpers */
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#if defined(TARGET_PPC64)
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/* multiply high word */
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uint64_t helper_mulhd (uint64_t arg1, uint64_t arg2) |
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{
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uint64_t tl, th; |
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|
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muls64(&tl, &th, arg1, arg2); |
| 420 |
return th;
|
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} |
| 422 |
|
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/* multiply high word unsigned */
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uint64_t helper_mulhdu (uint64_t arg1, uint64_t arg2) |
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{
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uint64_t tl, th; |
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mulu64(&tl, &th, arg1, arg2); |
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return th;
|
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} |
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uint64_t helper_mulldo (uint64_t arg1, uint64_t arg2) |
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{
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int64_t th; |
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uint64_t tl; |
| 436 |
|
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muls64(&tl, (uint64_t *)&th, arg1, arg2); |
| 438 |
/* If th != 0 && th != -1, then we had an overflow */
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if (likely((uint64_t)(th + 1) <= 1)) { |
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env->xer &= ~(1 << XER_OV);
|
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} else {
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env->xer |= (1 << XER_OV) | (1 << XER_SO); |
| 443 |
} |
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return (int64_t)tl;
|
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} |
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#endif
|
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|
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target_ulong helper_cntlzw (target_ulong t) |
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{
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return clz32(t);
|
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} |
| 452 |
|
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#if defined(TARGET_PPC64)
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target_ulong helper_cntlzd (target_ulong t) |
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{
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return clz64(t);
|
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} |
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#endif
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|
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/* shift right arithmetic helper */
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target_ulong helper_sraw (target_ulong value, target_ulong shift) |
| 462 |
{
|
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int32_t ret; |
| 464 |
|
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if (likely(!(shift & 0x20))) { |
| 466 |
if (likely((uint32_t)shift != 0)) { |
| 467 |
shift &= 0x1f;
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ret = (int32_t)value >> shift; |
| 469 |
if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) { |
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env->xer &= ~(1 << XER_CA);
|
| 471 |
} else {
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env->xer |= (1 << XER_CA);
|
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} |
| 474 |
} else {
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ret = (int32_t)value; |
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env->xer &= ~(1 << XER_CA);
|
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} |
| 478 |
} else {
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ret = (int32_t)value >> 31;
|
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if (ret) {
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env->xer |= (1 << XER_CA);
|
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} else {
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env->xer &= ~(1 << XER_CA);
|
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} |
| 485 |
} |
| 486 |
return (target_long)ret;
|
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} |
| 488 |
|
| 489 |
#if defined(TARGET_PPC64)
|
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target_ulong helper_srad (target_ulong value, target_ulong shift) |
| 491 |
{
|
| 492 |
int64_t ret; |
| 493 |
|
| 494 |
if (likely(!(shift & 0x40))) { |
| 495 |
if (likely((uint64_t)shift != 0)) { |
| 496 |
shift &= 0x3f;
|
| 497 |
ret = (int64_t)value >> shift; |
| 498 |
if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) { |
| 499 |
env->xer &= ~(1 << XER_CA);
|
| 500 |
} else {
|
| 501 |
env->xer |= (1 << XER_CA);
|
| 502 |
} |
| 503 |
} else {
|
| 504 |
ret = (int64_t)value; |
| 505 |
env->xer &= ~(1 << XER_CA);
|
| 506 |
} |
| 507 |
} else {
|
| 508 |
ret = (int64_t)value >> 63;
|
| 509 |
if (ret) {
|
| 510 |
env->xer |= (1 << XER_CA);
|
| 511 |
} else {
|
| 512 |
env->xer &= ~(1 << XER_CA);
|
| 513 |
} |
| 514 |
} |
| 515 |
return ret;
|
| 516 |
} |
| 517 |
#endif
|
| 518 |
|
| 519 |
target_ulong helper_popcntb (target_ulong val) |
| 520 |
{
|
| 521 |
val = (val & 0x55555555) + ((val >> 1) & 0x55555555); |
| 522 |
val = (val & 0x33333333) + ((val >> 2) & 0x33333333); |
| 523 |
val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f); |
| 524 |
return val;
|
| 525 |
} |
| 526 |
|
| 527 |
#if defined(TARGET_PPC64)
|
| 528 |
target_ulong helper_popcntb_64 (target_ulong val) |
| 529 |
{
|
| 530 |
val = (val & 0x5555555555555555ULL) + ((val >> 1) & 0x5555555555555555ULL); |
| 531 |
val = (val & 0x3333333333333333ULL) + ((val >> 2) & 0x3333333333333333ULL); |
| 532 |
val = (val & 0x0f0f0f0f0f0f0f0fULL) + ((val >> 4) & 0x0f0f0f0f0f0f0f0fULL); |
| 533 |
return val;
|
| 534 |
} |
| 535 |
#endif
|
| 536 |
|
| 537 |
/*****************************************************************************/
|
| 538 |
/* Floating point operations helpers */
|
| 539 |
uint64_t helper_float32_to_float64(uint32_t arg) |
| 540 |
{
|
| 541 |
CPU_FloatU f; |
| 542 |
CPU_DoubleU d; |
| 543 |
f.l = arg; |
| 544 |
d.d = float32_to_float64(f.f, &env->fp_status); |
| 545 |
return d.ll;
|
| 546 |
} |
| 547 |
|
| 548 |
uint32_t helper_float64_to_float32(uint64_t arg) |
| 549 |
{
|
| 550 |
CPU_FloatU f; |
| 551 |
CPU_DoubleU d; |
| 552 |
d.ll = arg; |
| 553 |
f.f = float64_to_float32(d.d, &env->fp_status); |
| 554 |
return f.l;
|
| 555 |
} |
| 556 |
|
| 557 |
static always_inline int isden (float64 d) |
| 558 |
{
|
| 559 |
CPU_DoubleU u; |
| 560 |
|
| 561 |
u.d = d; |
| 562 |
|
| 563 |
return ((u.ll >> 52) & 0x7FF) == 0; |
| 564 |
} |
| 565 |
|
| 566 |
#ifdef CONFIG_SOFTFLOAT
|
| 567 |
static always_inline int isnormal (float64 d) |
| 568 |
{
|
| 569 |
CPU_DoubleU u; |
| 570 |
|
| 571 |
u.d = d; |
| 572 |
|
| 573 |
uint32_t exp = (u.ll >> 52) & 0x7FF; |
| 574 |
return ((0 < exp) && (exp < 0x7FF)); |
| 575 |
} |
| 576 |
#endif
|
| 577 |
|
| 578 |
uint32_t helper_compute_fprf (uint64_t arg, uint32_t set_fprf) |
| 579 |
{
|
| 580 |
CPU_DoubleU farg; |
| 581 |
int isneg;
|
| 582 |
int ret;
|
| 583 |
farg.ll = arg; |
| 584 |
isneg = float64_is_neg(farg.d); |
| 585 |
if (unlikely(float64_is_nan(farg.d))) {
|
| 586 |
if (float64_is_signaling_nan(farg.d)) {
|
| 587 |
/* Signaling NaN: flags are undefined */
|
| 588 |
ret = 0x00;
|
| 589 |
} else {
|
| 590 |
/* Quiet NaN */
|
| 591 |
ret = 0x11;
|
| 592 |
} |
| 593 |
} else if (unlikely(float64_is_infinity(farg.d))) { |
| 594 |
/* +/- infinity */
|
| 595 |
if (isneg)
|
| 596 |
ret = 0x09;
|
| 597 |
else
|
| 598 |
ret = 0x05;
|
| 599 |
} else {
|
| 600 |
if (float64_is_zero(farg.d)) {
|
| 601 |
/* +/- zero */
|
| 602 |
if (isneg)
|
| 603 |
ret = 0x12;
|
| 604 |
else
|
| 605 |
ret = 0x02;
|
| 606 |
} else {
|
| 607 |
if (isden(farg.d)) {
|
| 608 |
/* Denormalized numbers */
|
| 609 |
ret = 0x10;
|
| 610 |
} else {
|
| 611 |
/* Normalized numbers */
|
| 612 |
ret = 0x00;
|
| 613 |
} |
| 614 |
if (isneg) {
|
| 615 |
ret |= 0x08;
|
| 616 |
} else {
|
| 617 |
ret |= 0x04;
|
| 618 |
} |
| 619 |
} |
| 620 |
} |
| 621 |
if (set_fprf) {
|
| 622 |
/* We update FPSCR_FPRF */
|
| 623 |
env->fpscr &= ~(0x1F << FPSCR_FPRF);
|
| 624 |
env->fpscr |= ret << FPSCR_FPRF; |
| 625 |
} |
| 626 |
/* We just need fpcc to update Rc1 */
|
| 627 |
return ret & 0xF; |
| 628 |
} |
| 629 |
|
| 630 |
/* Floating-point invalid operations exception */
|
| 631 |
static always_inline uint64_t fload_invalid_op_excp (int op) |
| 632 |
{
|
| 633 |
uint64_t ret = 0;
|
| 634 |
int ve;
|
| 635 |
|
| 636 |
ve = fpscr_ve; |
| 637 |
switch (op) {
|
| 638 |
case POWERPC_EXCP_FP_VXSNAN:
|
| 639 |
env->fpscr |= 1 << FPSCR_VXSNAN;
|
| 640 |
break;
|
| 641 |
case POWERPC_EXCP_FP_VXSOFT:
|
| 642 |
env->fpscr |= 1 << FPSCR_VXSOFT;
|
| 643 |
break;
|
| 644 |
case POWERPC_EXCP_FP_VXISI:
|
| 645 |
/* Magnitude subtraction of infinities */
|
| 646 |
env->fpscr |= 1 << FPSCR_VXISI;
|
| 647 |
goto update_arith;
|
| 648 |
case POWERPC_EXCP_FP_VXIDI:
|
| 649 |
/* Division of infinity by infinity */
|
| 650 |
env->fpscr |= 1 << FPSCR_VXIDI;
|
| 651 |
goto update_arith;
|
| 652 |
case POWERPC_EXCP_FP_VXZDZ:
|
| 653 |
/* Division of zero by zero */
|
| 654 |
env->fpscr |= 1 << FPSCR_VXZDZ;
|
| 655 |
goto update_arith;
|
| 656 |
case POWERPC_EXCP_FP_VXIMZ:
|
| 657 |
/* Multiplication of zero by infinity */
|
| 658 |
env->fpscr |= 1 << FPSCR_VXIMZ;
|
| 659 |
goto update_arith;
|
| 660 |
case POWERPC_EXCP_FP_VXVC:
|
| 661 |
/* Ordered comparison of NaN */
|
| 662 |
env->fpscr |= 1 << FPSCR_VXVC;
|
| 663 |
env->fpscr &= ~(0xF << FPSCR_FPCC);
|
| 664 |
env->fpscr |= 0x11 << FPSCR_FPCC;
|
| 665 |
/* We must update the target FPR before raising the exception */
|
| 666 |
if (ve != 0) { |
| 667 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
| 668 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_VXVC; |
| 669 |
/* Update the floating-point enabled exception summary */
|
| 670 |
env->fpscr |= 1 << FPSCR_FEX;
|
| 671 |
/* Exception is differed */
|
| 672 |
ve = 0;
|
| 673 |
} |
| 674 |
break;
|
| 675 |
case POWERPC_EXCP_FP_VXSQRT:
|
| 676 |
/* Square root of a negative number */
|
| 677 |
env->fpscr |= 1 << FPSCR_VXSQRT;
|
| 678 |
update_arith:
|
| 679 |
env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI)); |
| 680 |
if (ve == 0) { |
| 681 |
/* Set the result to quiet NaN */
|
| 682 |
ret = 0xFFF8000000000000ULL;
|
| 683 |
env->fpscr &= ~(0xF << FPSCR_FPCC);
|
| 684 |
env->fpscr |= 0x11 << FPSCR_FPCC;
|
| 685 |
} |
| 686 |
break;
|
| 687 |
case POWERPC_EXCP_FP_VXCVI:
|
| 688 |
/* Invalid conversion */
|
| 689 |
env->fpscr |= 1 << FPSCR_VXCVI;
|
| 690 |
env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI)); |
| 691 |
if (ve == 0) { |
| 692 |
/* Set the result to quiet NaN */
|
| 693 |
ret = 0xFFF8000000000000ULL;
|
| 694 |
env->fpscr &= ~(0xF << FPSCR_FPCC);
|
| 695 |
env->fpscr |= 0x11 << FPSCR_FPCC;
|
| 696 |
} |
| 697 |
break;
|
| 698 |
} |
| 699 |
/* Update the floating-point invalid operation summary */
|
| 700 |
env->fpscr |= 1 << FPSCR_VX;
|
| 701 |
/* Update the floating-point exception summary */
|
| 702 |
env->fpscr |= 1 << FPSCR_FX;
|
| 703 |
if (ve != 0) { |
| 704 |
/* Update the floating-point enabled exception summary */
|
| 705 |
env->fpscr |= 1 << FPSCR_FEX;
|
| 706 |
if (msr_fe0 != 0 || msr_fe1 != 0) |
| 707 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_FP | op); |
| 708 |
} |
| 709 |
return ret;
|
| 710 |
} |
| 711 |
|
| 712 |
static always_inline uint64_t float_zero_divide_excp (uint64_t arg1, uint64_t arg2)
|
| 713 |
{
|
| 714 |
env->fpscr |= 1 << FPSCR_ZX;
|
| 715 |
env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI)); |
| 716 |
/* Update the floating-point exception summary */
|
| 717 |
env->fpscr |= 1 << FPSCR_FX;
|
| 718 |
if (fpscr_ze != 0) { |
| 719 |
/* Update the floating-point enabled exception summary */
|
| 720 |
env->fpscr |= 1 << FPSCR_FEX;
|
| 721 |
if (msr_fe0 != 0 || msr_fe1 != 0) { |
| 722 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, |
| 723 |
POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX); |
| 724 |
} |
| 725 |
} else {
|
| 726 |
/* Set the result to infinity */
|
| 727 |
arg1 = ((arg1 ^ arg2) & 0x8000000000000000ULL);
|
| 728 |
arg1 |= 0x7FFULL << 52; |
| 729 |
} |
| 730 |
return arg1;
|
| 731 |
} |
| 732 |
|
| 733 |
static always_inline void float_overflow_excp (void) |
| 734 |
{
|
| 735 |
env->fpscr |= 1 << FPSCR_OX;
|
| 736 |
/* Update the floating-point exception summary */
|
| 737 |
env->fpscr |= 1 << FPSCR_FX;
|
| 738 |
if (fpscr_oe != 0) { |
| 739 |
/* XXX: should adjust the result */
|
| 740 |
/* Update the floating-point enabled exception summary */
|
| 741 |
env->fpscr |= 1 << FPSCR_FEX;
|
| 742 |
/* We must update the target FPR before raising the exception */
|
| 743 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
| 744 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX; |
| 745 |
} else {
|
| 746 |
env->fpscr |= 1 << FPSCR_XX;
|
| 747 |
env->fpscr |= 1 << FPSCR_FI;
|
| 748 |
} |
| 749 |
} |
| 750 |
|
| 751 |
static always_inline void float_underflow_excp (void) |
| 752 |
{
|
| 753 |
env->fpscr |= 1 << FPSCR_UX;
|
| 754 |
/* Update the floating-point exception summary */
|
| 755 |
env->fpscr |= 1 << FPSCR_FX;
|
| 756 |
if (fpscr_ue != 0) { |
| 757 |
/* XXX: should adjust the result */
|
| 758 |
/* Update the floating-point enabled exception summary */
|
| 759 |
env->fpscr |= 1 << FPSCR_FEX;
|
| 760 |
/* We must update the target FPR before raising the exception */
|
| 761 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
| 762 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX; |
| 763 |
} |
| 764 |
} |
| 765 |
|
| 766 |
static always_inline void float_inexact_excp (void) |
| 767 |
{
|
| 768 |
env->fpscr |= 1 << FPSCR_XX;
|
| 769 |
/* Update the floating-point exception summary */
|
| 770 |
env->fpscr |= 1 << FPSCR_FX;
|
| 771 |
if (fpscr_xe != 0) { |
| 772 |
/* Update the floating-point enabled exception summary */
|
| 773 |
env->fpscr |= 1 << FPSCR_FEX;
|
| 774 |
/* We must update the target FPR before raising the exception */
|
| 775 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
| 776 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX; |
| 777 |
} |
| 778 |
} |
| 779 |
|
| 780 |
static always_inline void fpscr_set_rounding_mode (void) |
| 781 |
{
|
| 782 |
int rnd_type;
|
| 783 |
|
| 784 |
/* Set rounding mode */
|
| 785 |
switch (fpscr_rn) {
|
| 786 |
case 0: |
| 787 |
/* Best approximation (round to nearest) */
|
| 788 |
rnd_type = float_round_nearest_even; |
| 789 |
break;
|
| 790 |
case 1: |
| 791 |
/* Smaller magnitude (round toward zero) */
|
| 792 |
rnd_type = float_round_to_zero; |
| 793 |
break;
|
| 794 |
case 2: |
| 795 |
/* Round toward +infinite */
|
| 796 |
rnd_type = float_round_up; |
| 797 |
break;
|
| 798 |
default:
|
| 799 |
case 3: |
| 800 |
/* Round toward -infinite */
|
| 801 |
rnd_type = float_round_down; |
| 802 |
break;
|
| 803 |
} |
| 804 |
set_float_rounding_mode(rnd_type, &env->fp_status); |
| 805 |
} |
| 806 |
|
| 807 |
void helper_fpscr_clrbit (uint32_t bit)
|
| 808 |
{
|
| 809 |
int prev;
|
| 810 |
|
| 811 |
prev = (env->fpscr >> bit) & 1;
|
| 812 |
env->fpscr &= ~(1 << bit);
|
| 813 |
if (prev == 1) { |
| 814 |
switch (bit) {
|
| 815 |
case FPSCR_RN1:
|
| 816 |
case FPSCR_RN:
|
| 817 |
fpscr_set_rounding_mode(); |
| 818 |
break;
|
| 819 |
default:
|
| 820 |
break;
|
| 821 |
} |
| 822 |
} |
| 823 |
} |
| 824 |
|
| 825 |
void helper_fpscr_setbit (uint32_t bit)
|
| 826 |
{
|
| 827 |
int prev;
|
| 828 |
|
| 829 |
prev = (env->fpscr >> bit) & 1;
|
| 830 |
env->fpscr |= 1 << bit;
|
| 831 |
if (prev == 0) { |
| 832 |
switch (bit) {
|
| 833 |
case FPSCR_VX:
|
| 834 |
env->fpscr |= 1 << FPSCR_FX;
|
| 835 |
if (fpscr_ve)
|
| 836 |
goto raise_ve;
|
| 837 |
case FPSCR_OX:
|
| 838 |
env->fpscr |= 1 << FPSCR_FX;
|
| 839 |
if (fpscr_oe)
|
| 840 |
goto raise_oe;
|
| 841 |
break;
|
| 842 |
case FPSCR_UX:
|
| 843 |
env->fpscr |= 1 << FPSCR_FX;
|
| 844 |
if (fpscr_ue)
|
| 845 |
goto raise_ue;
|
| 846 |
break;
|
| 847 |
case FPSCR_ZX:
|
| 848 |
env->fpscr |= 1 << FPSCR_FX;
|
| 849 |
if (fpscr_ze)
|
| 850 |
goto raise_ze;
|
| 851 |
break;
|
| 852 |
case FPSCR_XX:
|
| 853 |
env->fpscr |= 1 << FPSCR_FX;
|
| 854 |
if (fpscr_xe)
|
| 855 |
goto raise_xe;
|
| 856 |
break;
|
| 857 |
case FPSCR_VXSNAN:
|
| 858 |
case FPSCR_VXISI:
|
| 859 |
case FPSCR_VXIDI:
|
| 860 |
case FPSCR_VXZDZ:
|
| 861 |
case FPSCR_VXIMZ:
|
| 862 |
case FPSCR_VXVC:
|
| 863 |
case FPSCR_VXSOFT:
|
| 864 |
case FPSCR_VXSQRT:
|
| 865 |
case FPSCR_VXCVI:
|
| 866 |
env->fpscr |= 1 << FPSCR_VX;
|
| 867 |
env->fpscr |= 1 << FPSCR_FX;
|
| 868 |
if (fpscr_ve != 0) |
| 869 |
goto raise_ve;
|
| 870 |
break;
|
| 871 |
case FPSCR_VE:
|
| 872 |
if (fpscr_vx != 0) { |
| 873 |
raise_ve:
|
| 874 |
env->error_code = POWERPC_EXCP_FP; |
| 875 |
if (fpscr_vxsnan)
|
| 876 |
env->error_code |= POWERPC_EXCP_FP_VXSNAN; |
| 877 |
if (fpscr_vxisi)
|
| 878 |
env->error_code |= POWERPC_EXCP_FP_VXISI; |
| 879 |
if (fpscr_vxidi)
|
| 880 |
env->error_code |= POWERPC_EXCP_FP_VXIDI; |
| 881 |
if (fpscr_vxzdz)
|
| 882 |
env->error_code |= POWERPC_EXCP_FP_VXZDZ; |
| 883 |
if (fpscr_vximz)
|
| 884 |
env->error_code |= POWERPC_EXCP_FP_VXIMZ; |
| 885 |
if (fpscr_vxvc)
|
| 886 |
env->error_code |= POWERPC_EXCP_FP_VXVC; |
| 887 |
if (fpscr_vxsoft)
|
| 888 |
env->error_code |= POWERPC_EXCP_FP_VXSOFT; |
| 889 |
if (fpscr_vxsqrt)
|
| 890 |
env->error_code |= POWERPC_EXCP_FP_VXSQRT; |
| 891 |
if (fpscr_vxcvi)
|
| 892 |
env->error_code |= POWERPC_EXCP_FP_VXCVI; |
| 893 |
goto raise_excp;
|
| 894 |
} |
| 895 |
break;
|
| 896 |
case FPSCR_OE:
|
| 897 |
if (fpscr_ox != 0) { |
| 898 |
raise_oe:
|
| 899 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX; |
| 900 |
goto raise_excp;
|
| 901 |
} |
| 902 |
break;
|
| 903 |
case FPSCR_UE:
|
| 904 |
if (fpscr_ux != 0) { |
| 905 |
raise_ue:
|
| 906 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX; |
| 907 |
goto raise_excp;
|
| 908 |
} |
| 909 |
break;
|
| 910 |
case FPSCR_ZE:
|
| 911 |
if (fpscr_zx != 0) { |
| 912 |
raise_ze:
|
| 913 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX; |
| 914 |
goto raise_excp;
|
| 915 |
} |
| 916 |
break;
|
| 917 |
case FPSCR_XE:
|
| 918 |
if (fpscr_xx != 0) { |
| 919 |
raise_xe:
|
| 920 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX; |
| 921 |
goto raise_excp;
|
| 922 |
} |
| 923 |
break;
|
| 924 |
case FPSCR_RN1:
|
| 925 |
case FPSCR_RN:
|
| 926 |
fpscr_set_rounding_mode(); |
| 927 |
break;
|
| 928 |
default:
|
| 929 |
break;
|
| 930 |
raise_excp:
|
| 931 |
/* Update the floating-point enabled exception summary */
|
| 932 |
env->fpscr |= 1 << FPSCR_FEX;
|
| 933 |
/* We have to update Rc1 before raising the exception */
|
| 934 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
| 935 |
break;
|
| 936 |
} |
| 937 |
} |
| 938 |
} |
| 939 |
|
| 940 |
void helper_store_fpscr (uint64_t arg, uint32_t mask)
|
| 941 |
{
|
| 942 |
/*
|
| 943 |
* We use only the 32 LSB of the incoming fpr
|
| 944 |
*/
|
| 945 |
uint32_t prev, new; |
| 946 |
int i;
|
| 947 |
|
| 948 |
prev = env->fpscr; |
| 949 |
new = (uint32_t)arg; |
| 950 |
new &= ~0x60000000;
|
| 951 |
new |= prev & 0x60000000;
|
| 952 |
for (i = 0; i < 8; i++) { |
| 953 |
if (mask & (1 << i)) { |
| 954 |
env->fpscr &= ~(0xF << (4 * i)); |
| 955 |
env->fpscr |= new & (0xF << (4 * i)); |
| 956 |
} |
| 957 |
} |
| 958 |
/* Update VX and FEX */
|
| 959 |
if (fpscr_ix != 0) |
| 960 |
env->fpscr |= 1 << FPSCR_VX;
|
| 961 |
else
|
| 962 |
env->fpscr &= ~(1 << FPSCR_VX);
|
| 963 |
if ((fpscr_ex & fpscr_eex) != 0) { |
| 964 |
env->fpscr |= 1 << FPSCR_FEX;
|
| 965 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
| 966 |
/* XXX: we should compute it properly */
|
| 967 |
env->error_code = POWERPC_EXCP_FP; |
| 968 |
} |
| 969 |
else
|
| 970 |
env->fpscr &= ~(1 << FPSCR_FEX);
|
| 971 |
fpscr_set_rounding_mode(); |
| 972 |
} |
| 973 |
|
| 974 |
void helper_float_check_status (void) |
| 975 |
{
|
| 976 |
#ifdef CONFIG_SOFTFLOAT
|
| 977 |
if (env->exception_index == POWERPC_EXCP_PROGRAM &&
|
| 978 |
(env->error_code & POWERPC_EXCP_FP)) {
|
| 979 |
/* Differred floating-point exception after target FPR update */
|
| 980 |
if (msr_fe0 != 0 || msr_fe1 != 0) |
| 981 |
helper_raise_exception_err(env->exception_index, env->error_code); |
| 982 |
} else {
|
| 983 |
int status = get_float_exception_flags(&env->fp_status);
|
| 984 |
if (status & float_flag_overflow) {
|
| 985 |
float_overflow_excp(); |
| 986 |
} else if (status & float_flag_underflow) { |
| 987 |
float_underflow_excp(); |
| 988 |
} else if (status & float_flag_inexact) { |
| 989 |
float_inexact_excp(); |
| 990 |
} |
| 991 |
} |
| 992 |
#else
|
| 993 |
if (env->exception_index == POWERPC_EXCP_PROGRAM &&
|
| 994 |
(env->error_code & POWERPC_EXCP_FP)) {
|
| 995 |
/* Differred floating-point exception after target FPR update */
|
| 996 |
if (msr_fe0 != 0 || msr_fe1 != 0) |
| 997 |
helper_raise_exception_err(env->exception_index, env->error_code); |
| 998 |
} |
| 999 |
#endif
|
| 1000 |
} |
| 1001 |
|
| 1002 |
#ifdef CONFIG_SOFTFLOAT
|
| 1003 |
void helper_reset_fpstatus (void) |
| 1004 |
{
|
| 1005 |
set_float_exception_flags(0, &env->fp_status);
|
| 1006 |
} |
| 1007 |
#endif
|
| 1008 |
|
| 1009 |
/* fadd - fadd. */
|
| 1010 |
uint64_t helper_fadd (uint64_t arg1, uint64_t arg2) |
| 1011 |
{
|
| 1012 |
CPU_DoubleU farg1, farg2; |
| 1013 |
|
| 1014 |
farg1.ll = arg1; |
| 1015 |
farg2.ll = arg2; |
| 1016 |
#if USE_PRECISE_EMULATION
|
| 1017 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
| 1018 |
float64_is_signaling_nan(farg2.d))) {
|
| 1019 |
/* sNaN addition */
|
| 1020 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
| 1021 |
} else if (unlikely(float64_is_infinity(farg1.d) && float64_is_infinity(farg2.d) && |
| 1022 |
float64_is_neg(farg1.d) != float64_is_neg(farg2.d))) {
|
| 1023 |
/* Magnitude subtraction of infinities */
|
| 1024 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
| 1025 |
} else {
|
| 1026 |
farg1.d = float64_add(farg1.d, farg2.d, &env->fp_status); |
| 1027 |
} |
| 1028 |
#else
|
| 1029 |
farg1.d = float64_add(farg1.d, farg2.d, &env->fp_status); |
| 1030 |
#endif
|
| 1031 |
return farg1.ll;
|
| 1032 |
} |
| 1033 |
|
| 1034 |
/* fsub - fsub. */
|
| 1035 |
uint64_t helper_fsub (uint64_t arg1, uint64_t arg2) |
| 1036 |
{
|
| 1037 |
CPU_DoubleU farg1, farg2; |
| 1038 |
|
| 1039 |
farg1.ll = arg1; |
| 1040 |
farg2.ll = arg2; |
| 1041 |
#if USE_PRECISE_EMULATION
|
| 1042 |
{
|
| 1043 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
| 1044 |
float64_is_signaling_nan(farg2.d))) {
|
| 1045 |
/* sNaN subtraction */
|
| 1046 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
| 1047 |
} else if (unlikely(float64_is_infinity(farg1.d) && float64_is_infinity(farg2.d) && |
| 1048 |
float64_is_neg(farg1.d) == float64_is_neg(farg2.d))) {
|
| 1049 |
/* Magnitude subtraction of infinities */
|
| 1050 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
| 1051 |
} else {
|
| 1052 |
farg1.d = float64_sub(farg1.d, farg2.d, &env->fp_status); |
| 1053 |
} |
| 1054 |
} |
| 1055 |
#else
|
| 1056 |
farg1.d = float64_sub(farg1.d, farg2.d, &env->fp_status); |
| 1057 |
#endif
|
| 1058 |
return farg1.ll;
|
| 1059 |
} |
| 1060 |
|
| 1061 |
/* fmul - fmul. */
|
| 1062 |
uint64_t helper_fmul (uint64_t arg1, uint64_t arg2) |
| 1063 |
{
|
| 1064 |
CPU_DoubleU farg1, farg2; |
| 1065 |
|
| 1066 |
farg1.ll = arg1; |
| 1067 |
farg2.ll = arg2; |
| 1068 |
#if USE_PRECISE_EMULATION
|
| 1069 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
| 1070 |
float64_is_signaling_nan(farg2.d))) {
|
| 1071 |
/* sNaN multiplication */
|
| 1072 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
| 1073 |
} else if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || |
| 1074 |
(float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) {
|
| 1075 |
/* Multiplication of zero by infinity */
|
| 1076 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ); |
| 1077 |
} else {
|
| 1078 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
| 1079 |
} |
| 1080 |
#else
|
| 1081 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
| 1082 |
#endif
|
| 1083 |
return farg1.ll;
|
| 1084 |
} |
| 1085 |
|
| 1086 |
/* fdiv - fdiv. */
|
| 1087 |
uint64_t helper_fdiv (uint64_t arg1, uint64_t arg2) |
| 1088 |
{
|
| 1089 |
CPU_DoubleU farg1, farg2; |
| 1090 |
|
| 1091 |
farg1.ll = arg1; |
| 1092 |
farg2.ll = arg2; |
| 1093 |
#if USE_PRECISE_EMULATION
|
| 1094 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
| 1095 |
float64_is_signaling_nan(farg2.d))) {
|
| 1096 |
/* sNaN division */
|
| 1097 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
| 1098 |
} else if (unlikely(float64_is_infinity(farg1.d) && float64_is_infinity(farg2.d))) { |
| 1099 |
/* Division of infinity by infinity */
|
| 1100 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIDI); |
| 1101 |
} else if (unlikely(!float64_is_nan(farg1.d) && float64_is_zero(farg2.d))) { |
| 1102 |
if (float64_is_zero(farg1.d)) {
|
| 1103 |
/* Division of zero by zero */
|
| 1104 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXZDZ); |
| 1105 |
} else {
|
| 1106 |
/* Division by zero */
|
| 1107 |
farg1.ll = float_zero_divide_excp(farg1.d, farg2.d); |
| 1108 |
} |
| 1109 |
} else {
|
| 1110 |
farg1.d = float64_div(farg1.d, farg2.d, &env->fp_status); |
| 1111 |
} |
| 1112 |
#else
|
| 1113 |
farg1.d = float64_div(farg1.d, farg2.d, &env->fp_status); |
| 1114 |
#endif
|
| 1115 |
return farg1.ll;
|
| 1116 |
} |
| 1117 |
|
| 1118 |
/* fabs */
|
| 1119 |
uint64_t helper_fabs (uint64_t arg) |
| 1120 |
{
|
| 1121 |
CPU_DoubleU farg; |
| 1122 |
|
| 1123 |
farg.ll = arg; |
| 1124 |
farg.d = float64_abs(farg.d); |
| 1125 |
return farg.ll;
|
| 1126 |
} |
| 1127 |
|
| 1128 |
/* fnabs */
|
| 1129 |
uint64_t helper_fnabs (uint64_t arg) |
| 1130 |
{
|
| 1131 |
CPU_DoubleU farg; |
| 1132 |
|
| 1133 |
farg.ll = arg; |
| 1134 |
farg.d = float64_abs(farg.d); |
| 1135 |
farg.d = float64_chs(farg.d); |
| 1136 |
return farg.ll;
|
| 1137 |
} |
| 1138 |
|
| 1139 |
/* fneg */
|
| 1140 |
uint64_t helper_fneg (uint64_t arg) |
| 1141 |
{
|
| 1142 |
CPU_DoubleU farg; |
| 1143 |
|
| 1144 |
farg.ll = arg; |
| 1145 |
farg.d = float64_chs(farg.d); |
| 1146 |
return farg.ll;
|
| 1147 |
} |
| 1148 |
|
| 1149 |
/* fctiw - fctiw. */
|
| 1150 |
uint64_t helper_fctiw (uint64_t arg) |
| 1151 |
{
|
| 1152 |
CPU_DoubleU farg; |
| 1153 |
farg.ll = arg; |
| 1154 |
|
| 1155 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
| 1156 |
/* sNaN conversion */
|
| 1157 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
| 1158 |
} else if (unlikely(float64_is_nan(farg.d) || float64_is_infinity(farg.d))) { |
| 1159 |
/* qNan / infinity conversion */
|
| 1160 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
| 1161 |
} else {
|
| 1162 |
farg.ll = float64_to_int32(farg.d, &env->fp_status); |
| 1163 |
#if USE_PRECISE_EMULATION
|
| 1164 |
/* XXX: higher bits are not supposed to be significant.
|
| 1165 |
* to make tests easier, return the same as a real PowerPC 750
|
| 1166 |
*/
|
| 1167 |
farg.ll |= 0xFFF80000ULL << 32; |
| 1168 |
#endif
|
| 1169 |
} |
| 1170 |
return farg.ll;
|
| 1171 |
} |
| 1172 |
|
| 1173 |
/* fctiwz - fctiwz. */
|
| 1174 |
uint64_t helper_fctiwz (uint64_t arg) |
| 1175 |
{
|
| 1176 |
CPU_DoubleU farg; |
| 1177 |
farg.ll = arg; |
| 1178 |
|
| 1179 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
| 1180 |
/* sNaN conversion */
|
| 1181 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
| 1182 |
} else if (unlikely(float64_is_nan(farg.d) || float64_is_infinity(farg.d))) { |
| 1183 |
/* qNan / infinity conversion */
|
| 1184 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
| 1185 |
} else {
|
| 1186 |
farg.ll = float64_to_int32_round_to_zero(farg.d, &env->fp_status); |
| 1187 |
#if USE_PRECISE_EMULATION
|
| 1188 |
/* XXX: higher bits are not supposed to be significant.
|
| 1189 |
* to make tests easier, return the same as a real PowerPC 750
|
| 1190 |
*/
|
| 1191 |
farg.ll |= 0xFFF80000ULL << 32; |
| 1192 |
#endif
|
| 1193 |
} |
| 1194 |
return farg.ll;
|
| 1195 |
} |
| 1196 |
|
| 1197 |
#if defined(TARGET_PPC64)
|
| 1198 |
/* fcfid - fcfid. */
|
| 1199 |
uint64_t helper_fcfid (uint64_t arg) |
| 1200 |
{
|
| 1201 |
CPU_DoubleU farg; |
| 1202 |
farg.d = int64_to_float64(arg, &env->fp_status); |
| 1203 |
return farg.ll;
|
| 1204 |
} |
| 1205 |
|
| 1206 |
/* fctid - fctid. */
|
| 1207 |
uint64_t helper_fctid (uint64_t arg) |
| 1208 |
{
|
| 1209 |
CPU_DoubleU farg; |
| 1210 |
farg.ll = arg; |
| 1211 |
|
| 1212 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
| 1213 |
/* sNaN conversion */
|
| 1214 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
| 1215 |
} else if (unlikely(float64_is_nan(farg.d) || float64_is_infinity(farg.d))) { |
| 1216 |
/* qNan / infinity conversion */
|
| 1217 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
| 1218 |
} else {
|
| 1219 |
farg.ll = float64_to_int64(farg.d, &env->fp_status); |
| 1220 |
} |
| 1221 |
return farg.ll;
|
| 1222 |
} |
| 1223 |
|
| 1224 |
/* fctidz - fctidz. */
|
| 1225 |
uint64_t helper_fctidz (uint64_t arg) |
| 1226 |
{
|
| 1227 |
CPU_DoubleU farg; |
| 1228 |
farg.ll = arg; |
| 1229 |
|
| 1230 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
| 1231 |
/* sNaN conversion */
|
| 1232 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
| 1233 |
} else if (unlikely(float64_is_nan(farg.d) || float64_is_infinity(farg.d))) { |
| 1234 |
/* qNan / infinity conversion */
|
| 1235 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
| 1236 |
} else {
|
| 1237 |
farg.ll = float64_to_int64_round_to_zero(farg.d, &env->fp_status); |
| 1238 |
} |
| 1239 |
return farg.ll;
|
| 1240 |
} |
| 1241 |
|
| 1242 |
#endif
|
| 1243 |
|
| 1244 |
static always_inline uint64_t do_fri (uint64_t arg, int rounding_mode) |
| 1245 |
{
|
| 1246 |
CPU_DoubleU farg; |
| 1247 |
farg.ll = arg; |
| 1248 |
|
| 1249 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
| 1250 |
/* sNaN round */
|
| 1251 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
| 1252 |
} else if (unlikely(float64_is_nan(farg.d) || float64_is_infinity(farg.d))) { |
| 1253 |
/* qNan / infinity round */
|
| 1254 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
| 1255 |
} else {
|
| 1256 |
set_float_rounding_mode(rounding_mode, &env->fp_status); |
| 1257 |
farg.ll = float64_round_to_int(farg.d, &env->fp_status); |
| 1258 |
/* Restore rounding mode from FPSCR */
|
| 1259 |
fpscr_set_rounding_mode(); |
| 1260 |
} |
| 1261 |
return farg.ll;
|
| 1262 |
} |
| 1263 |
|
| 1264 |
uint64_t helper_frin (uint64_t arg) |
| 1265 |
{
|
| 1266 |
return do_fri(arg, float_round_nearest_even);
|
| 1267 |
} |
| 1268 |
|
| 1269 |
uint64_t helper_friz (uint64_t arg) |
| 1270 |
{
|
| 1271 |
return do_fri(arg, float_round_to_zero);
|
| 1272 |
} |
| 1273 |
|
| 1274 |
uint64_t helper_frip (uint64_t arg) |
| 1275 |
{
|
| 1276 |
return do_fri(arg, float_round_up);
|
| 1277 |
} |
| 1278 |
|
| 1279 |
uint64_t helper_frim (uint64_t arg) |
| 1280 |
{
|
| 1281 |
return do_fri(arg, float_round_down);
|
| 1282 |
} |
| 1283 |
|
| 1284 |
/* fmadd - fmadd. */
|
| 1285 |
uint64_t helper_fmadd (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
| 1286 |
{
|
| 1287 |
CPU_DoubleU farg1, farg2, farg3; |
| 1288 |
|
| 1289 |
farg1.ll = arg1; |
| 1290 |
farg2.ll = arg2; |
| 1291 |
farg3.ll = arg3; |
| 1292 |
#if USE_PRECISE_EMULATION
|
| 1293 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
| 1294 |
float64_is_signaling_nan(farg2.d) || |
| 1295 |
float64_is_signaling_nan(farg3.d))) {
|
| 1296 |
/* sNaN operation */
|
| 1297 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
| 1298 |
} else if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || |
| 1299 |
(float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) {
|
| 1300 |
/* Multiplication of zero by infinity */
|
| 1301 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ); |
| 1302 |
} else {
|
| 1303 |
#ifdef FLOAT128
|
| 1304 |
/* This is the way the PowerPC specification defines it */
|
| 1305 |
float128 ft0_128, ft1_128; |
| 1306 |
|
| 1307 |
ft0_128 = float64_to_float128(farg1.d, &env->fp_status); |
| 1308 |
ft1_128 = float64_to_float128(farg2.d, &env->fp_status); |
| 1309 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
| 1310 |
if (unlikely(float128_is_infinity(ft0_128) && float64_is_infinity(farg3.d) &&
|
| 1311 |
float128_is_neg(ft0_128) != float64_is_neg(farg3.d))) {
|
| 1312 |
/* Magnitude subtraction of infinities */
|
| 1313 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
| 1314 |
} else {
|
| 1315 |
ft1_128 = float64_to_float128(farg3.d, &env->fp_status); |
| 1316 |
ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status); |
| 1317 |
farg1.d = float128_to_float64(ft0_128, &env->fp_status); |
| 1318 |
} |
| 1319 |
#else
|
| 1320 |
/* This is OK on x86 hosts */
|
| 1321 |
farg1.d = (farg1.d * farg2.d) + farg3.d; |
| 1322 |
#endif
|
| 1323 |
} |
| 1324 |
#else
|
| 1325 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
| 1326 |
farg1.d = float64_add(farg1.d, farg3.d, &env->fp_status); |
| 1327 |
#endif
|
| 1328 |
return farg1.ll;
|
| 1329 |
} |
| 1330 |
|
| 1331 |
/* fmsub - fmsub. */
|
| 1332 |
uint64_t helper_fmsub (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
| 1333 |
{
|
| 1334 |
CPU_DoubleU farg1, farg2, farg3; |
| 1335 |
|
| 1336 |
farg1.ll = arg1; |
| 1337 |
farg2.ll = arg2; |
| 1338 |
farg3.ll = arg3; |
| 1339 |
#if USE_PRECISE_EMULATION
|
| 1340 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
| 1341 |
float64_is_signaling_nan(farg2.d) || |
| 1342 |
float64_is_signaling_nan(farg3.d))) {
|
| 1343 |
/* sNaN operation */
|
| 1344 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
| 1345 |
} else if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || |
| 1346 |
(float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) {
|
| 1347 |
/* Multiplication of zero by infinity */
|
| 1348 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ); |
| 1349 |
} else {
|
| 1350 |
#ifdef FLOAT128
|
| 1351 |
/* This is the way the PowerPC specification defines it */
|
| 1352 |
float128 ft0_128, ft1_128; |
| 1353 |
|
| 1354 |
ft0_128 = float64_to_float128(farg1.d, &env->fp_status); |
| 1355 |
ft1_128 = float64_to_float128(farg2.d, &env->fp_status); |
| 1356 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
| 1357 |
if (unlikely(float128_is_infinity(ft0_128) && float64_is_infinity(farg3.d) &&
|
| 1358 |
float128_is_neg(ft0_128) == float64_is_neg(farg3.d))) {
|
| 1359 |
/* Magnitude subtraction of infinities */
|
| 1360 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
| 1361 |
} else {
|
| 1362 |
ft1_128 = float64_to_float128(farg3.d, &env->fp_status); |
| 1363 |
ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status); |
| 1364 |
farg1.d = float128_to_float64(ft0_128, &env->fp_status); |
| 1365 |
} |
| 1366 |
#else
|
| 1367 |
/* This is OK on x86 hosts */
|
| 1368 |
farg1.d = (farg1.d * farg2.d) - farg3.d; |
| 1369 |
#endif
|
| 1370 |
} |
| 1371 |
#else
|
| 1372 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
| 1373 |
farg1.d = float64_sub(farg1.d, farg3.d, &env->fp_status); |
| 1374 |
#endif
|
| 1375 |
return farg1.ll;
|
| 1376 |
} |
| 1377 |
|
| 1378 |
/* fnmadd - fnmadd. */
|
| 1379 |
uint64_t helper_fnmadd (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
| 1380 |
{
|
| 1381 |
CPU_DoubleU farg1, farg2, farg3; |
| 1382 |
|
| 1383 |
farg1.ll = arg1; |
| 1384 |
farg2.ll = arg2; |
| 1385 |
farg3.ll = arg3; |
| 1386 |
|
| 1387 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
| 1388 |
float64_is_signaling_nan(farg2.d) || |
| 1389 |
float64_is_signaling_nan(farg3.d))) {
|
| 1390 |
/* sNaN operation */
|
| 1391 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
| 1392 |
} else if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || |
| 1393 |
(float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) {
|
| 1394 |
/* Multiplication of zero by infinity */
|
| 1395 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ); |
| 1396 |
} else {
|
| 1397 |
#if USE_PRECISE_EMULATION
|
| 1398 |
#ifdef FLOAT128
|
| 1399 |
/* This is the way the PowerPC specification defines it */
|
| 1400 |
float128 ft0_128, ft1_128; |
| 1401 |
|
| 1402 |
ft0_128 = float64_to_float128(farg1.d, &env->fp_status); |
| 1403 |
ft1_128 = float64_to_float128(farg2.d, &env->fp_status); |
| 1404 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
| 1405 |
if (unlikely(float128_is_infinity(ft0_128) && float64_is_infinity(farg3.d) &&
|
| 1406 |
float128_is_neg(ft0_128) != float64_is_neg(farg3.d))) {
|
| 1407 |
/* Magnitude subtraction of infinities */
|
| 1408 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
| 1409 |
} else {
|
| 1410 |
ft1_128 = float64_to_float128(farg3.d, &env->fp_status); |
| 1411 |
ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status); |
| 1412 |
farg1.d = float128_to_float64(ft0_128, &env->fp_status); |
| 1413 |
} |
| 1414 |
#else
|
| 1415 |
/* This is OK on x86 hosts */
|
| 1416 |
farg1.d = (farg1.d * farg2.d) + farg3.d; |
| 1417 |
#endif
|
| 1418 |
#else
|
| 1419 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
| 1420 |
farg1.d = float64_add(farg1.d, farg3.d, &env->fp_status); |
| 1421 |
#endif
|
| 1422 |
if (likely(!float64_is_nan(farg1.d)))
|
| 1423 |
farg1.d = float64_chs(farg1.d); |
| 1424 |
} |
| 1425 |
return farg1.ll;
|
| 1426 |
} |
| 1427 |
|
| 1428 |
/* fnmsub - fnmsub. */
|
| 1429 |
uint64_t helper_fnmsub (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
| 1430 |
{
|
| 1431 |
CPU_DoubleU farg1, farg2, farg3; |
| 1432 |
|
| 1433 |
farg1.ll = arg1; |
| 1434 |
farg2.ll = arg2; |
| 1435 |
farg3.ll = arg3; |
| 1436 |
|
| 1437 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
| 1438 |
float64_is_signaling_nan(farg2.d) || |
| 1439 |
float64_is_signaling_nan(farg3.d))) {
|
| 1440 |
/* sNaN operation */
|
| 1441 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
| 1442 |
} else if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || |
| 1443 |
(float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) {
|
| 1444 |
/* Multiplication of zero by infinity */
|
| 1445 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ); |
| 1446 |
} else {
|
| 1447 |
#if USE_PRECISE_EMULATION
|
| 1448 |
#ifdef FLOAT128
|
| 1449 |
/* This is the way the PowerPC specification defines it */
|
| 1450 |
float128 ft0_128, ft1_128; |
| 1451 |
|
| 1452 |
ft0_128 = float64_to_float128(farg1.d, &env->fp_status); |
| 1453 |
ft1_128 = float64_to_float128(farg2.d, &env->fp_status); |
| 1454 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
| 1455 |
if (unlikely(float128_is_infinity(ft0_128) && float64_is_infinity(farg3.d) &&
|
| 1456 |
float128_is_neg(ft0_128) == float64_is_neg(farg3.d))) {
|
| 1457 |
/* Magnitude subtraction of infinities */
|
| 1458 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
| 1459 |
} else {
|
| 1460 |
ft1_128 = float64_to_float128(farg3.d, &env->fp_status); |
| 1461 |
ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status); |
| 1462 |
farg1.d = float128_to_float64(ft0_128, &env->fp_status); |
| 1463 |
} |
| 1464 |
#else
|
| 1465 |
/* This is OK on x86 hosts */
|
| 1466 |
farg1.d = (farg1.d * farg2.d) - farg3.d; |
| 1467 |
#endif
|
| 1468 |
#else
|
| 1469 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
| 1470 |
farg1.d = float64_sub(farg1.d, farg3.d, &env->fp_status); |
| 1471 |
#endif
|
| 1472 |
if (likely(!float64_is_nan(farg1.d)))
|
| 1473 |
farg1.d = float64_chs(farg1.d); |
| 1474 |
} |
| 1475 |
return farg1.ll;
|
| 1476 |
} |
| 1477 |
|
| 1478 |
/* frsp - frsp. */
|
| 1479 |
uint64_t helper_frsp (uint64_t arg) |
| 1480 |
{
|
| 1481 |
CPU_DoubleU farg; |
| 1482 |
float32 f32; |
| 1483 |
farg.ll = arg; |
| 1484 |
|
| 1485 |
#if USE_PRECISE_EMULATION
|
| 1486 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
| 1487 |
/* sNaN square root */
|
| 1488 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
| 1489 |
} else {
|
| 1490 |
f32 = float64_to_float32(farg.d, &env->fp_status); |
| 1491 |
farg.d = float32_to_float64(f32, &env->fp_status); |
| 1492 |
} |
| 1493 |
#else
|
| 1494 |
f32 = float64_to_float32(farg.d, &env->fp_status); |
| 1495 |
farg.d = float32_to_float64(f32, &env->fp_status); |
| 1496 |
#endif
|
| 1497 |
return farg.ll;
|
| 1498 |
} |
| 1499 |
|
| 1500 |
/* fsqrt - fsqrt. */
|
| 1501 |
uint64_t helper_fsqrt (uint64_t arg) |
| 1502 |
{
|
| 1503 |
CPU_DoubleU farg; |
| 1504 |
farg.ll = arg; |
| 1505 |
|
| 1506 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
| 1507 |
/* sNaN square root */
|
| 1508 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
| 1509 |
} else if (unlikely(float64_is_neg(farg.d) && !float64_is_zero(farg.d))) { |
| 1510 |
/* Square root of a negative nonzero number */
|
| 1511 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSQRT); |
| 1512 |
} else {
|
| 1513 |
farg.d = float64_sqrt(farg.d, &env->fp_status); |
| 1514 |
} |
| 1515 |
return farg.ll;
|
| 1516 |
} |
| 1517 |
|
| 1518 |
/* fre - fre. */
|
| 1519 |
uint64_t helper_fre (uint64_t arg) |
| 1520 |
{
|
| 1521 |
CPU_DoubleU fone, farg; |
| 1522 |
fone.ll = 0x3FF0000000000000ULL; /* 1.0 */ |
| 1523 |
farg.ll = arg; |
| 1524 |
|
| 1525 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
| 1526 |
/* sNaN reciprocal */
|
| 1527 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
| 1528 |
} else if (unlikely(float64_is_zero(farg.d))) { |
| 1529 |
/* Zero reciprocal */
|
| 1530 |
farg.ll = float_zero_divide_excp(fone.d, farg.d); |
| 1531 |
} else if (likely(isnormal(farg.d))) { |
| 1532 |
farg.d = float64_div(fone.d, farg.d, &env->fp_status); |
| 1533 |
} else {
|
| 1534 |
if (farg.ll == 0x8000000000000000ULL) { |
| 1535 |
farg.ll = 0xFFF0000000000000ULL;
|
| 1536 |
} else if (farg.ll == 0x0000000000000000ULL) { |
| 1537 |
farg.ll = 0x7FF0000000000000ULL;
|
| 1538 |
} else if (float64_is_nan(farg.d)) { |
| 1539 |
farg.ll = 0x7FF8000000000000ULL;
|
| 1540 |
} else if (float64_is_neg(farg.d)) { |
| 1541 |
farg.ll = 0x8000000000000000ULL;
|
| 1542 |
} else {
|
| 1543 |
farg.ll = 0x0000000000000000ULL;
|
| 1544 |
} |
| 1545 |
} |
| 1546 |
return farg.d;
|
| 1547 |
} |
| 1548 |
|
| 1549 |
/* fres - fres. */
|
| 1550 |
uint64_t helper_fres (uint64_t arg) |
| 1551 |
{
|
| 1552 |
CPU_DoubleU fone, farg; |
| 1553 |
fone.ll = 0x3FF0000000000000ULL; /* 1.0 */ |
| 1554 |
farg.ll = arg; |
| 1555 |
|
| 1556 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
| 1557 |
/* sNaN reciprocal */
|
| 1558 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
| 1559 |
} else if (unlikely(float64_is_zero(farg.d))) { |
| 1560 |
/* Zero reciprocal */
|
| 1561 |
farg.ll = float_zero_divide_excp(fone.d, farg.d); |
| 1562 |
} else if (likely(isnormal(farg.d))) { |
| 1563 |
#if USE_PRECISE_EMULATION
|
| 1564 |
farg.d = float64_div(fone.d, farg.d, &env->fp_status); |
| 1565 |
farg.d = float64_to_float32(farg.d, &env->fp_status); |
| 1566 |
#else
|
| 1567 |
farg.d = float32_div(fone.d, farg.d, &env->fp_status); |
| 1568 |
#endif
|
| 1569 |
} else {
|
| 1570 |
if (farg.ll == 0x8000000000000000ULL) { |
| 1571 |
farg.ll = 0xFFF0000000000000ULL;
|
| 1572 |
} else if (farg.ll == 0x0000000000000000ULL) { |
| 1573 |
farg.ll = 0x7FF0000000000000ULL;
|
| 1574 |
} else if (float64_is_nan(farg.d)) { |
| 1575 |
farg.ll = 0x7FF8000000000000ULL;
|
| 1576 |
} else if (float64_is_neg(farg.d)) { |
| 1577 |
farg.ll = 0x8000000000000000ULL;
|
| 1578 |
} else {
|
| 1579 |
farg.ll = 0x0000000000000000ULL;
|
| 1580 |
} |
| 1581 |
} |
| 1582 |
return farg.ll;
|
| 1583 |
} |
| 1584 |
|
| 1585 |
/* frsqrte - frsqrte. */
|
| 1586 |
uint64_t helper_frsqrte (uint64_t arg) |
| 1587 |
{
|
| 1588 |
CPU_DoubleU fone, farg; |
| 1589 |
fone.ll = 0x3FF0000000000000ULL; /* 1.0 */ |
| 1590 |
farg.ll = arg; |
| 1591 |
|
| 1592 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
| 1593 |
/* sNaN reciprocal square root */
|
| 1594 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
| 1595 |
} else if (unlikely(float64_is_neg(farg.d) && !float64_is_zero(farg.d))) { |
| 1596 |
/* Reciprocal square root of a negative nonzero number */
|
| 1597 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSQRT); |
| 1598 |
} else if (likely(isnormal(farg.d))) { |
| 1599 |
farg.d = float64_sqrt(farg.d, &env->fp_status); |
| 1600 |
farg.d = float32_div(fone.d, farg.d, &env->fp_status); |
| 1601 |
} else {
|
| 1602 |
if (farg.ll == 0x8000000000000000ULL) { |
| 1603 |
farg.ll = 0xFFF0000000000000ULL;
|
| 1604 |
} else if (farg.ll == 0x0000000000000000ULL) { |
| 1605 |
farg.ll = 0x7FF0000000000000ULL;
|
| 1606 |
} else if (float64_is_nan(farg.d)) { |
| 1607 |
farg.ll |= 0x000FFFFFFFFFFFFFULL;
|
| 1608 |
} else if (float64_is_neg(farg.d)) { |
| 1609 |
farg.ll = 0x7FF8000000000000ULL;
|
| 1610 |
} else {
|
| 1611 |
farg.ll = 0x0000000000000000ULL;
|
| 1612 |
} |
| 1613 |
} |
| 1614 |
return farg.ll;
|
| 1615 |
} |
| 1616 |
|
| 1617 |
/* fsel - fsel. */
|
| 1618 |
uint64_t helper_fsel (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
| 1619 |
{
|
| 1620 |
CPU_DoubleU farg1; |
| 1621 |
|
| 1622 |
farg1.ll = arg1; |
| 1623 |
|
| 1624 |
if (!float64_is_neg(farg1.d) || float64_is_zero(farg1.d))
|
| 1625 |
return arg2;
|
| 1626 |
else
|
| 1627 |
return arg3;
|
| 1628 |
} |
| 1629 |
|
| 1630 |
void helper_fcmpu (uint64_t arg1, uint64_t arg2, uint32_t crfD)
|
| 1631 |
{
|
| 1632 |
CPU_DoubleU farg1, farg2; |
| 1633 |
uint32_t ret = 0;
|
| 1634 |
farg1.ll = arg1; |
| 1635 |
farg2.ll = arg2; |
| 1636 |
|
| 1637 |
if (unlikely(float64_is_nan(farg1.d) ||
|
| 1638 |
float64_is_nan(farg2.d))) {
|
| 1639 |
ret = 0x01UL;
|
| 1640 |
} else if (float64_lt(farg1.d, farg2.d, &env->fp_status)) { |
| 1641 |
ret = 0x08UL;
|
| 1642 |
} else if (!float64_le(farg1.d, farg2.d, &env->fp_status)) { |
| 1643 |
ret = 0x04UL;
|
| 1644 |
} else {
|
| 1645 |
ret = 0x02UL;
|
| 1646 |
} |
| 1647 |
|
| 1648 |
env->fpscr &= ~(0x0F << FPSCR_FPRF);
|
| 1649 |
env->fpscr |= ret << FPSCR_FPRF; |
| 1650 |
env->crf[crfD] = ret; |
| 1651 |
if (unlikely(ret == 0x01UL |
| 1652 |
&& (float64_is_signaling_nan(farg1.d) || |
| 1653 |
float64_is_signaling_nan(farg2.d)))) {
|
| 1654 |
/* sNaN comparison */
|
| 1655 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
| 1656 |
} |
| 1657 |
} |
| 1658 |
|
| 1659 |
void helper_fcmpo (uint64_t arg1, uint64_t arg2, uint32_t crfD)
|
| 1660 |
{
|
| 1661 |
CPU_DoubleU farg1, farg2; |
| 1662 |
uint32_t ret = 0;
|
| 1663 |
farg1.ll = arg1; |
| 1664 |
farg2.ll = arg2; |
| 1665 |
|
| 1666 |
if (unlikely(float64_is_nan(farg1.d) ||
|
| 1667 |
float64_is_nan(farg2.d))) {
|
| 1668 |
ret = 0x01UL;
|
| 1669 |
} else if (float64_lt(farg1.d, farg2.d, &env->fp_status)) { |
| 1670 |
ret = 0x08UL;
|
| 1671 |
} else if (!float64_le(farg1.d, farg2.d, &env->fp_status)) { |
| 1672 |
ret = 0x04UL;
|
| 1673 |
} else {
|
| 1674 |
ret = 0x02UL;
|
| 1675 |
} |
| 1676 |
|
| 1677 |
env->fpscr &= ~(0x0F << FPSCR_FPRF);
|
| 1678 |
env->fpscr |= ret << FPSCR_FPRF; |
| 1679 |
env->crf[crfD] = ret; |
| 1680 |
if (unlikely (ret == 0x01UL)) { |
| 1681 |
if (float64_is_signaling_nan(farg1.d) ||
|
| 1682 |
float64_is_signaling_nan(farg2.d)) {
|
| 1683 |
/* sNaN comparison */
|
| 1684 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | |
| 1685 |
POWERPC_EXCP_FP_VXVC); |
| 1686 |
} else {
|
| 1687 |
/* qNaN comparison */
|
| 1688 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXVC); |
| 1689 |
} |
| 1690 |
} |
| 1691 |
} |
| 1692 |
|
| 1693 |
#if !defined (CONFIG_USER_ONLY)
|
| 1694 |
void helper_store_msr (target_ulong val)
|
| 1695 |
{
|
| 1696 |
val = hreg_store_msr(env, val, 0);
|
| 1697 |
if (val != 0) { |
| 1698 |
env->interrupt_request |= CPU_INTERRUPT_EXITTB; |
| 1699 |
helper_raise_exception(val); |
| 1700 |
} |
| 1701 |
} |
| 1702 |
|
| 1703 |
static always_inline void do_rfi (target_ulong nip, target_ulong msr, |
| 1704 |
target_ulong msrm, int keep_msrh)
|
| 1705 |
{
|
| 1706 |
#if defined(TARGET_PPC64)
|
| 1707 |
if (msr & (1ULL << MSR_SF)) { |
| 1708 |
nip = (uint64_t)nip; |
| 1709 |
msr &= (uint64_t)msrm; |
| 1710 |
} else {
|
| 1711 |
nip = (uint32_t)nip; |
| 1712 |
msr = (uint32_t)(msr & msrm); |
| 1713 |
if (keep_msrh)
|
| 1714 |
msr |= env->msr & ~((uint64_t)0xFFFFFFFF);
|
| 1715 |
} |
| 1716 |
#else
|
| 1717 |
nip = (uint32_t)nip; |
| 1718 |
msr &= (uint32_t)msrm; |
| 1719 |
#endif
|
| 1720 |
/* XXX: beware: this is false if VLE is supported */
|
| 1721 |
env->nip = nip & ~((target_ulong)0x00000003);
|
| 1722 |
hreg_store_msr(env, msr, 1);
|
| 1723 |
#if defined (DEBUG_OP)
|
| 1724 |
cpu_dump_rfi(env->nip, env->msr); |
| 1725 |
#endif
|
| 1726 |
/* No need to raise an exception here,
|
| 1727 |
* as rfi is always the last insn of a TB
|
| 1728 |
*/
|
| 1729 |
env->interrupt_request |= CPU_INTERRUPT_EXITTB; |
| 1730 |
} |
| 1731 |
|
| 1732 |
void helper_rfi (void) |
| 1733 |
{
|
| 1734 |
do_rfi(env->spr[SPR_SRR0], env->spr[SPR_SRR1], |
| 1735 |
~((target_ulong)0xFFFF0000), 1); |
| 1736 |
} |
| 1737 |
|
| 1738 |
#if defined(TARGET_PPC64)
|
| 1739 |
void helper_rfid (void) |
| 1740 |
{
|
| 1741 |
do_rfi(env->spr[SPR_SRR0], env->spr[SPR_SRR1], |
| 1742 |
~((target_ulong)0xFFFF0000), 0); |
| 1743 |
} |
| 1744 |
|
| 1745 |
void helper_hrfid (void) |
| 1746 |
{
|
| 1747 |
do_rfi(env->spr[SPR_HSRR0], env->spr[SPR_HSRR1], |
| 1748 |
~((target_ulong)0xFFFF0000), 0); |
| 1749 |
} |
| 1750 |
#endif
|
| 1751 |
#endif
|
| 1752 |
|
| 1753 |
void helper_tw (target_ulong arg1, target_ulong arg2, uint32_t flags)
|
| 1754 |
{
|
| 1755 |
if (!likely(!(((int32_t)arg1 < (int32_t)arg2 && (flags & 0x10)) || |
| 1756 |
((int32_t)arg1 > (int32_t)arg2 && (flags & 0x08)) ||
|
| 1757 |
((int32_t)arg1 == (int32_t)arg2 && (flags & 0x04)) ||
|
| 1758 |
((uint32_t)arg1 < (uint32_t)arg2 && (flags & 0x02)) ||
|
| 1759 |
((uint32_t)arg1 > (uint32_t)arg2 && (flags & 0x01))))) {
|
| 1760 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP); |
| 1761 |
} |
| 1762 |
} |
| 1763 |
|
| 1764 |
#if defined(TARGET_PPC64)
|
| 1765 |
void helper_td (target_ulong arg1, target_ulong arg2, uint32_t flags)
|
| 1766 |
{
|
| 1767 |
if (!likely(!(((int64_t)arg1 < (int64_t)arg2 && (flags & 0x10)) || |
| 1768 |
((int64_t)arg1 > (int64_t)arg2 && (flags & 0x08)) ||
|
| 1769 |
((int64_t)arg1 == (int64_t)arg2 && (flags & 0x04)) ||
|
| 1770 |
((uint64_t)arg1 < (uint64_t)arg2 && (flags & 0x02)) ||
|
| 1771 |
((uint64_t)arg1 > (uint64_t)arg2 && (flags & 0x01)))))
|
| 1772 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP); |
| 1773 |
} |
| 1774 |
#endif
|
| 1775 |
|
| 1776 |
/*****************************************************************************/
|
| 1777 |
/* PowerPC 601 specific instructions (POWER bridge) */
|
| 1778 |
|
| 1779 |
target_ulong helper_clcs (uint32_t arg) |
| 1780 |
{
|
| 1781 |
switch (arg) {
|
| 1782 |
case 0x0CUL: |
| 1783 |
/* Instruction cache line size */
|
| 1784 |
return env->icache_line_size;
|
| 1785 |
break;
|
| 1786 |
case 0x0DUL: |
| 1787 |
/* Data cache line size */
|
| 1788 |
return env->dcache_line_size;
|
| 1789 |
break;
|
| 1790 |
case 0x0EUL: |
| 1791 |
/* Minimum cache line size */
|
| 1792 |
return (env->icache_line_size < env->dcache_line_size) ?
|
| 1793 |
env->icache_line_size : env->dcache_line_size; |
| 1794 |
break;
|
| 1795 |
case 0x0FUL: |
| 1796 |
/* Maximum cache line size */
|
| 1797 |
return (env->icache_line_size > env->dcache_line_size) ?
|
| 1798 |
env->icache_line_size : env->dcache_line_size; |
| 1799 |
break;
|
| 1800 |
default:
|
| 1801 |
/* Undefined */
|
| 1802 |
return 0; |
| 1803 |
break;
|
| 1804 |
} |
| 1805 |
} |
| 1806 |
|
| 1807 |
target_ulong helper_div (target_ulong arg1, target_ulong arg2) |
| 1808 |
{
|
| 1809 |
uint64_t tmp = (uint64_t)arg1 << 32 | env->spr[SPR_MQ];
|
| 1810 |
|
| 1811 |
if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
| 1812 |
(int32_t)arg2 == 0) {
|
| 1813 |
env->spr[SPR_MQ] = 0;
|
| 1814 |
return INT32_MIN;
|
| 1815 |
} else {
|
| 1816 |
env->spr[SPR_MQ] = tmp % arg2; |
| 1817 |
return tmp / (int32_t)arg2;
|
| 1818 |
} |
| 1819 |
} |
| 1820 |
|
| 1821 |
target_ulong helper_divo (target_ulong arg1, target_ulong arg2) |
| 1822 |
{
|
| 1823 |
uint64_t tmp = (uint64_t)arg1 << 32 | env->spr[SPR_MQ];
|
| 1824 |
|
| 1825 |
if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
| 1826 |
(int32_t)arg2 == 0) {
|
| 1827 |
env->xer |= (1 << XER_OV) | (1 << XER_SO); |
| 1828 |
env->spr[SPR_MQ] = 0;
|
| 1829 |
return INT32_MIN;
|
| 1830 |
} else {
|
| 1831 |
env->spr[SPR_MQ] = tmp % arg2; |
| 1832 |
tmp /= (int32_t)arg2; |
| 1833 |
if ((int32_t)tmp != tmp) {
|
| 1834 |
env->xer |= (1 << XER_OV) | (1 << XER_SO); |
| 1835 |
} else {
|
| 1836 |
env->xer &= ~(1 << XER_OV);
|
| 1837 |
} |
| 1838 |
return tmp;
|
| 1839 |
} |
| 1840 |
} |
| 1841 |
|
| 1842 |
target_ulong helper_divs (target_ulong arg1, target_ulong arg2) |
| 1843 |
{
|
| 1844 |
if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
| 1845 |
(int32_t)arg2 == 0) {
|
| 1846 |
env->spr[SPR_MQ] = 0;
|
| 1847 |
return INT32_MIN;
|
| 1848 |
} else {
|
| 1849 |
env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2; |
| 1850 |
return (int32_t)arg1 / (int32_t)arg2;
|
| 1851 |
} |
| 1852 |
} |
| 1853 |
|
| 1854 |
target_ulong helper_divso (target_ulong arg1, target_ulong arg2) |
| 1855 |
{
|
| 1856 |
if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
| 1857 |
(int32_t)arg2 == 0) {
|
| 1858 |
env->xer |= (1 << XER_OV) | (1 << XER_SO); |
| 1859 |
env->spr[SPR_MQ] = 0;
|
| 1860 |
return INT32_MIN;
|
| 1861 |
} else {
|
| 1862 |
env->xer &= ~(1 << XER_OV);
|
| 1863 |
env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2; |
| 1864 |
return (int32_t)arg1 / (int32_t)arg2;
|
| 1865 |
} |
| 1866 |
} |
| 1867 |
|
| 1868 |
#if !defined (CONFIG_USER_ONLY)
|
| 1869 |
target_ulong helper_rac (target_ulong addr) |
| 1870 |
{
|
| 1871 |
mmu_ctx_t ctx; |
| 1872 |
int nb_BATs;
|
| 1873 |
target_ulong ret = 0;
|
| 1874 |
|
| 1875 |
/* We don't have to generate many instances of this instruction,
|
| 1876 |
* as rac is supervisor only.
|
| 1877 |
*/
|
| 1878 |
/* XXX: FIX THIS: Pretend we have no BAT */
|
| 1879 |
nb_BATs = env->nb_BATs; |
| 1880 |
env->nb_BATs = 0;
|
| 1881 |
if (get_physical_address(env, &ctx, addr, 0, ACCESS_INT) == 0) |
| 1882 |
ret = ctx.raddr; |
| 1883 |
env->nb_BATs = nb_BATs; |
| 1884 |
return ret;
|
| 1885 |
} |
| 1886 |
|
| 1887 |
void helper_rfsvc (void) |
| 1888 |
{
|
| 1889 |
do_rfi(env->lr, env->ctr, 0x0000FFFF, 0); |
| 1890 |
} |
| 1891 |
#endif
|
| 1892 |
|
| 1893 |
/*****************************************************************************/
|
| 1894 |
/* 602 specific instructions */
|
| 1895 |
/* mfrom is the most crazy instruction ever seen, imho ! */
|
| 1896 |
/* Real implementation uses a ROM table. Do the same */
|
| 1897 |
/* Extremly decomposed:
|
| 1898 |
* -arg / 256
|
| 1899 |
* return 256 * log10(10 + 1.0) + 0.5
|
| 1900 |
*/
|
| 1901 |
#if !defined (CONFIG_USER_ONLY)
|
| 1902 |
target_ulong helper_602_mfrom (target_ulong arg) |
| 1903 |
{
|
| 1904 |
if (likely(arg < 602)) { |
| 1905 |
#include "mfrom_table.c" |
| 1906 |
return mfrom_ROM_table[arg];
|
| 1907 |
} else {
|
| 1908 |
return 0; |
| 1909 |
} |
| 1910 |
} |
| 1911 |
#endif
|
| 1912 |
|
| 1913 |
/*****************************************************************************/
|
| 1914 |
/* Embedded PowerPC specific helpers */
|
| 1915 |
|
| 1916 |
/* XXX: to be improved to check access rights when in user-mode */
|
| 1917 |
target_ulong helper_load_dcr (target_ulong dcrn) |
| 1918 |
{
|
| 1919 |
target_ulong val = 0;
|
| 1920 |
|
| 1921 |
if (unlikely(env->dcr_env == NULL)) { |
| 1922 |
if (loglevel != 0) { |
| 1923 |
fprintf(logfile, "No DCR environment\n");
|
| 1924 |
} |
| 1925 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, |
| 1926 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL); |
| 1927 |
} else if (unlikely(ppc_dcr_read(env->dcr_env, dcrn, &val) != 0)) { |
| 1928 |
if (loglevel != 0) { |
| 1929 |
fprintf(logfile, "DCR read error %d %03x\n", (int)dcrn, (int)dcrn); |
| 1930 |
} |
| 1931 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, |
| 1932 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG); |
| 1933 |
} |
| 1934 |
return val;
|
| 1935 |
} |
| 1936 |
|
| 1937 |
void helper_store_dcr (target_ulong dcrn, target_ulong val)
|
| 1938 |
{
|
| 1939 |
if (unlikely(env->dcr_env == NULL)) { |
| 1940 |
if (loglevel != 0) { |
| 1941 |
fprintf(logfile, "No DCR environment\n");
|
| 1942 |
} |
| 1943 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, |
| 1944 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL); |
| 1945 |
} else if (unlikely(ppc_dcr_write(env->dcr_env, dcrn, val) != 0)) { |
| 1946 |
if (loglevel != 0) { |
| 1947 |
fprintf(logfile, "DCR write error %d %03x\n", (int)dcrn, (int)dcrn); |
| 1948 |
} |
| 1949 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, |
| 1950 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG); |
| 1951 |
} |
| 1952 |
} |
| 1953 |
|
| 1954 |
#if !defined(CONFIG_USER_ONLY)
|
| 1955 |
void helper_40x_rfci (void) |
| 1956 |
{
|
| 1957 |
do_rfi(env->spr[SPR_40x_SRR2], env->spr[SPR_40x_SRR3], |
| 1958 |
~((target_ulong)0xFFFF0000), 0); |
| 1959 |
} |
| 1960 |
|
| 1961 |
void helper_rfci (void) |
| 1962 |
{
|
| 1963 |
do_rfi(env->spr[SPR_BOOKE_CSRR0], SPR_BOOKE_CSRR1, |
| 1964 |
~((target_ulong)0x3FFF0000), 0); |
| 1965 |
} |
| 1966 |
|
| 1967 |
void helper_rfdi (void) |
| 1968 |
{
|
| 1969 |
do_rfi(env->spr[SPR_BOOKE_DSRR0], SPR_BOOKE_DSRR1, |
| 1970 |
~((target_ulong)0x3FFF0000), 0); |
| 1971 |
} |
| 1972 |
|
| 1973 |
void helper_rfmci (void) |
| 1974 |
{
|
| 1975 |
do_rfi(env->spr[SPR_BOOKE_MCSRR0], SPR_BOOKE_MCSRR1, |
| 1976 |
~((target_ulong)0x3FFF0000), 0); |
| 1977 |
} |
| 1978 |
#endif
|
| 1979 |
|
| 1980 |
/* 440 specific */
|
| 1981 |
target_ulong helper_dlmzb (target_ulong high, target_ulong low, uint32_t update_Rc) |
| 1982 |
{
|
| 1983 |
target_ulong mask; |
| 1984 |
int i;
|
| 1985 |
|
| 1986 |
i = 1;
|
| 1987 |
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
| 1988 |
if ((high & mask) == 0) { |
| 1989 |
if (update_Rc) {
|
| 1990 |
env->crf[0] = 0x4; |
| 1991 |
} |
| 1992 |
goto done;
|
| 1993 |
} |
| 1994 |
i++; |
| 1995 |
} |
| 1996 |
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
| 1997 |
if ((low & mask) == 0) { |
| 1998 |
if (update_Rc) {
|
| 1999 |
env->crf[0] = 0x8; |
| 2000 |
} |
| 2001 |
goto done;
|
| 2002 |
} |
| 2003 |
i++; |
| 2004 |
} |
| 2005 |
if (update_Rc) {
|
| 2006 |
env->crf[0] = 0x2; |
| 2007 |
} |
| 2008 |
done:
|
| 2009 |
env->xer = (env->xer & ~0x7F) | i;
|
| 2010 |
if (update_Rc) {
|
| 2011 |
env->crf[0] |= xer_so;
|
| 2012 |
} |
| 2013 |
return i;
|
| 2014 |
} |
| 2015 |
|
| 2016 |
/*****************************************************************************/
|
| 2017 |
/* SPE extension helpers */
|
| 2018 |
/* Use a table to make this quicker */
|
| 2019 |
static uint8_t hbrev[16] = { |
| 2020 |
0x0, 0x8, 0x4, 0xC, 0x2, 0xA, 0x6, 0xE, |
| 2021 |
0x1, 0x9, 0x5, 0xD, 0x3, 0xB, 0x7, 0xF, |
| 2022 |
}; |
| 2023 |
|
| 2024 |
static always_inline uint8_t byte_reverse (uint8_t val)
|
| 2025 |
{
|
| 2026 |
return hbrev[val >> 4] | (hbrev[val & 0xF] << 4); |
| 2027 |
} |
| 2028 |
|
| 2029 |
static always_inline uint32_t word_reverse (uint32_t val)
|
| 2030 |
{
|
| 2031 |
return byte_reverse(val >> 24) | (byte_reverse(val >> 16) << 8) | |
| 2032 |
(byte_reverse(val >> 8) << 16) | (byte_reverse(val) << 24); |
| 2033 |
} |
| 2034 |
|
| 2035 |
#define MASKBITS 16 // Random value - to be fixed (implementation dependant) |
| 2036 |
target_ulong helper_brinc (target_ulong arg1, target_ulong arg2) |
| 2037 |
{
|
| 2038 |
uint32_t a, b, d, mask; |
| 2039 |
|
| 2040 |
mask = UINT32_MAX >> (32 - MASKBITS);
|
| 2041 |
a = arg1 & mask; |
| 2042 |
b = arg2 & mask; |
| 2043 |
d = word_reverse(1 + word_reverse(a | ~b));
|
| 2044 |
return (arg1 & ~mask) | (d & b);
|
| 2045 |
} |
| 2046 |
|
| 2047 |
uint32_t helper_cntlsw32 (uint32_t val) |
| 2048 |
{
|
| 2049 |
if (val & 0x80000000) |
| 2050 |
return clz32(~val);
|
| 2051 |
else
|
| 2052 |
return clz32(val);
|
| 2053 |
} |
| 2054 |
|
| 2055 |
uint32_t helper_cntlzw32 (uint32_t val) |
| 2056 |
{
|
| 2057 |
return clz32(val);
|
| 2058 |
} |
| 2059 |
|
| 2060 |
/* Single-precision floating-point conversions */
|
| 2061 |
static always_inline uint32_t efscfsi (uint32_t val)
|
| 2062 |
{
|
| 2063 |
CPU_FloatU u; |
| 2064 |
|
| 2065 |
u.f = int32_to_float32(val, &env->spe_status); |
| 2066 |
|
| 2067 |
return u.l;
|
| 2068 |
} |
| 2069 |
|
| 2070 |
static always_inline uint32_t efscfui (uint32_t val)
|
| 2071 |
{
|
| 2072 |
CPU_FloatU u; |
| 2073 |
|
| 2074 |
u.f = uint32_to_float32(val, &env->spe_status); |
| 2075 |
|
| 2076 |
return u.l;
|
| 2077 |
} |
| 2078 |
|
| 2079 |
static always_inline int32_t efsctsi (uint32_t val)
|
| 2080 |
{
|
| 2081 |
CPU_FloatU u; |
| 2082 |
|
| 2083 |
u.l = val; |
| 2084 |
/* NaN are not treated the same way IEEE 754 does */
|
| 2085 |
if (unlikely(float32_is_nan(u.f)))
|
| 2086 |
return 0; |
| 2087 |
|
| 2088 |
return float32_to_int32(u.f, &env->spe_status);
|
| 2089 |
} |
| 2090 |
|
| 2091 |
static always_inline uint32_t efsctui (uint32_t val)
|
| 2092 |
{
|
| 2093 |
CPU_FloatU u; |
| 2094 |
|
| 2095 |
u.l = val; |
| 2096 |
/* NaN are not treated the same way IEEE 754 does */
|
| 2097 |
if (unlikely(float32_is_nan(u.f)))
|
| 2098 |
return 0; |
| 2099 |
|
| 2100 |
return float32_to_uint32(u.f, &env->spe_status);
|
| 2101 |
} |
| 2102 |
|
| 2103 |
static always_inline uint32_t efsctsiz (uint32_t val)
|
| 2104 |
{
|
| 2105 |
CPU_FloatU u; |
| 2106 |
|
| 2107 |
u.l = val; |
| 2108 |
/* NaN are not treated the same way IEEE 754 does */
|
| 2109 |
if (unlikely(float32_is_nan(u.f)))
|
| 2110 |
return 0; |
| 2111 |
|
| 2112 |
return float32_to_int32_round_to_zero(u.f, &env->spe_status);
|
| 2113 |
} |
| 2114 |
|
| 2115 |
static always_inline uint32_t efsctuiz (uint32_t val)
|
| 2116 |
{
|
| 2117 |
CPU_FloatU u; |
| 2118 |
|
| 2119 |
u.l = val; |
| 2120 |
/* NaN are not treated the same way IEEE 754 does */
|
| 2121 |
if (unlikely(float32_is_nan(u.f)))
|
| 2122 |
return 0; |
| 2123 |
|
| 2124 |
return float32_to_uint32_round_to_zero(u.f, &env->spe_status);
|
| 2125 |
} |
| 2126 |
|
| 2127 |
static always_inline uint32_t efscfsf (uint32_t val)
|
| 2128 |
{
|
| 2129 |
CPU_FloatU u; |
| 2130 |
float32 tmp; |
| 2131 |
|
| 2132 |
u.f = int32_to_float32(val, &env->spe_status); |
| 2133 |
tmp = int64_to_float32(1ULL << 32, &env->spe_status); |
| 2134 |
u.f = float32_div(u.f, tmp, &env->spe_status); |
| 2135 |
|
| 2136 |
return u.l;
|
| 2137 |
} |
| 2138 |
|
| 2139 |
static always_inline uint32_t efscfuf (uint32_t val)
|
| 2140 |
{
|
| 2141 |
CPU_FloatU u; |
| 2142 |
float32 tmp; |
| 2143 |
|
| 2144 |
u.f = uint32_to_float32(val, &env->spe_status); |
| 2145 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
| 2146 |
u.f = float32_div(u.f, tmp, &env->spe_status); |
| 2147 |
|
| 2148 |
return u.l;
|
| 2149 |
} |
| 2150 |
|
| 2151 |
static always_inline uint32_t efsctsf (uint32_t val)
|
| 2152 |
{
|
| 2153 |
CPU_FloatU u; |
| 2154 |
float32 tmp; |
| 2155 |
|
| 2156 |
u.l = val; |
| 2157 |
/* NaN are not treated the same way IEEE 754 does */
|
| 2158 |
if (unlikely(float32_is_nan(u.f)))
|
| 2159 |
return 0; |
| 2160 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
| 2161 |
u.f = float32_mul(u.f, tmp, &env->spe_status); |
| 2162 |
|
| 2163 |
return float32_to_int32(u.f, &env->spe_status);
|
| 2164 |
} |
| 2165 |
|
| 2166 |
static always_inline uint32_t efsctuf (uint32_t val)
|
| 2167 |
{
|
| 2168 |
CPU_FloatU u; |
| 2169 |
float32 tmp; |
| 2170 |
|
| 2171 |
u.l = val; |
| 2172 |
/* NaN are not treated the same way IEEE 754 does */
|
| 2173 |
if (unlikely(float32_is_nan(u.f)))
|
| 2174 |
return 0; |
| 2175 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
| 2176 |
u.f = float32_mul(u.f, tmp, &env->spe_status); |
| 2177 |
|
| 2178 |
return float32_to_uint32(u.f, &env->spe_status);
|
| 2179 |
} |
| 2180 |
|
| 2181 |
#define HELPER_SPE_SINGLE_CONV(name) \
|
| 2182 |
uint32_t helper_e##name (uint32_t val) \ |
| 2183 |
{ \
|
| 2184 |
return e##name(val); \ |
| 2185 |
} |
| 2186 |
/* efscfsi */
|
| 2187 |
HELPER_SPE_SINGLE_CONV(fscfsi); |
| 2188 |
/* efscfui */
|
| 2189 |
HELPER_SPE_SINGLE_CONV(fscfui); |
| 2190 |
/* efscfuf */
|
| 2191 |
HELPER_SPE_SINGLE_CONV(fscfuf); |
| 2192 |
/* efscfsf */
|
| 2193 |
HELPER_SPE_SINGLE_CONV(fscfsf); |
| 2194 |
/* efsctsi */
|
| 2195 |
HELPER_SPE_SINGLE_CONV(fsctsi); |
| 2196 |
/* efsctui */
|
| 2197 |
HELPER_SPE_SINGLE_CONV(fsctui); |
| 2198 |
/* efsctsiz */
|
| 2199 |
HELPER_SPE_SINGLE_CONV(fsctsiz); |
| 2200 |
/* efsctuiz */
|
| 2201 |
HELPER_SPE_SINGLE_CONV(fsctuiz); |
| 2202 |
/* efsctsf */
|
| 2203 |
HELPER_SPE_SINGLE_CONV(fsctsf); |
| 2204 |
/* efsctuf */
|
| 2205 |
HELPER_SPE_SINGLE_CONV(fsctuf); |
| 2206 |
|
| 2207 |
#define HELPER_SPE_VECTOR_CONV(name) \
|
| 2208 |
uint64_t helper_ev##name (uint64_t val) \ |
| 2209 |
{ \
|
| 2210 |
return ((uint64_t)e##name(val >> 32) << 32) | \ |
| 2211 |
(uint64_t)e##name(val); \ |
| 2212 |
} |
| 2213 |
/* evfscfsi */
|
| 2214 |
HELPER_SPE_VECTOR_CONV(fscfsi); |
| 2215 |
/* evfscfui */
|
| 2216 |
HELPER_SPE_VECTOR_CONV(fscfui); |
| 2217 |
/* evfscfuf */
|
| 2218 |
HELPER_SPE_VECTOR_CONV(fscfuf); |
| 2219 |
/* evfscfsf */
|
| 2220 |
HELPER_SPE_VECTOR_CONV(fscfsf); |
| 2221 |
/* evfsctsi */
|
| 2222 |
HELPER_SPE_VECTOR_CONV(fsctsi); |
| 2223 |
/* evfsctui */
|
| 2224 |
HELPER_SPE_VECTOR_CONV(fsctui); |
| 2225 |
/* evfsctsiz */
|
| 2226 |
HELPER_SPE_VECTOR_CONV(fsctsiz); |
| 2227 |
/* evfsctuiz */
|
| 2228 |
HELPER_SPE_VECTOR_CONV(fsctuiz); |
| 2229 |
/* evfsctsf */
|
| 2230 |
HELPER_SPE_VECTOR_CONV(fsctsf); |
| 2231 |
/* evfsctuf */
|
| 2232 |
HELPER_SPE_VECTOR_CONV(fsctuf); |
| 2233 |
|
| 2234 |
/* Single-precision floating-point arithmetic */
|
| 2235 |
static always_inline uint32_t efsadd (uint32_t op1, uint32_t op2)
|
| 2236 |
{
|
| 2237 |
CPU_FloatU u1, u2; |
| 2238 |
u1.l = op1; |
| 2239 |
u2.l = op2; |
| 2240 |
u1.f = float32_add(u1.f, u2.f, &env->spe_status); |
| 2241 |
return u1.l;
|
| 2242 |
} |
| 2243 |
|
| 2244 |
static always_inline uint32_t efssub (uint32_t op1, uint32_t op2)
|
| 2245 |
{
|
| 2246 |
CPU_FloatU u1, u2; |
| 2247 |
u1.l = op1; |
| 2248 |
u2.l = op2; |
| 2249 |
u1.f = float32_sub(u1.f, u2.f, &env->spe_status); |
| 2250 |
return u1.l;
|
| 2251 |
} |
| 2252 |
|
| 2253 |
static always_inline uint32_t efsmul (uint32_t op1, uint32_t op2)
|
| 2254 |
{
|
| 2255 |
CPU_FloatU u1, u2; |
| 2256 |
u1.l = op1; |
| 2257 |
u2.l = op2; |
| 2258 |
u1.f = float32_mul(u1.f, u2.f, &env->spe_status); |
| 2259 |
return u1.l;
|
| 2260 |
} |
| 2261 |
|
| 2262 |
static always_inline uint32_t efsdiv (uint32_t op1, uint32_t op2)
|
| 2263 |
{
|
| 2264 |
CPU_FloatU u1, u2; |
| 2265 |
u1.l = op1; |
| 2266 |
u2.l = op2; |
| 2267 |
u1.f = float32_div(u1.f, u2.f, &env->spe_status); |
| 2268 |
return u1.l;
|
| 2269 |
} |
| 2270 |
|
| 2271 |
#define HELPER_SPE_SINGLE_ARITH(name) \
|
| 2272 |
uint32_t helper_e##name (uint32_t op1, uint32_t op2) \ |
| 2273 |
{ \
|
| 2274 |
return e##name(op1, op2); \ |
| 2275 |
} |
| 2276 |
/* efsadd */
|
| 2277 |
HELPER_SPE_SINGLE_ARITH(fsadd); |
| 2278 |
/* efssub */
|
| 2279 |
HELPER_SPE_SINGLE_ARITH(fssub); |
| 2280 |
/* efsmul */
|
| 2281 |
HELPER_SPE_SINGLE_ARITH(fsmul); |
| 2282 |
/* efsdiv */
|
| 2283 |
HELPER_SPE_SINGLE_ARITH(fsdiv); |
| 2284 |
|
| 2285 |
#define HELPER_SPE_VECTOR_ARITH(name) \
|
| 2286 |
uint64_t helper_ev##name (uint64_t op1, uint64_t op2) \ |
| 2287 |
{ \
|
| 2288 |
return ((uint64_t)e##name(op1 >> 32, op2 >> 32) << 32) | \ |
| 2289 |
(uint64_t)e##name(op1, op2); \ |
| 2290 |
} |
| 2291 |
/* evfsadd */
|
| 2292 |
HELPER_SPE_VECTOR_ARITH(fsadd); |
| 2293 |
/* evfssub */
|
| 2294 |
HELPER_SPE_VECTOR_ARITH(fssub); |
| 2295 |
/* evfsmul */
|
| 2296 |
HELPER_SPE_VECTOR_ARITH(fsmul); |
| 2297 |
/* evfsdiv */
|
| 2298 |
HELPER_SPE_VECTOR_ARITH(fsdiv); |
| 2299 |
|
| 2300 |
/* Single-precision floating-point comparisons */
|
| 2301 |
static always_inline uint32_t efststlt (uint32_t op1, uint32_t op2)
|
| 2302 |
{
|
| 2303 |
CPU_FloatU u1, u2; |
| 2304 |
u1.l = op1; |
| 2305 |
u2.l = op2; |
| 2306 |
return float32_lt(u1.f, u2.f, &env->spe_status) ? 4 : 0; |
| 2307 |
} |
| 2308 |
|
| 2309 |
static always_inline uint32_t efststgt (uint32_t op1, uint32_t op2)
|
| 2310 |
{
|
| 2311 |
CPU_FloatU u1, u2; |
| 2312 |
u1.l = op1; |
| 2313 |
u2.l = op2; |
| 2314 |
return float32_le(u1.f, u2.f, &env->spe_status) ? 0 : 4; |
| 2315 |
} |
| 2316 |
|
| 2317 |
static always_inline uint32_t efststeq (uint32_t op1, uint32_t op2)
|
| 2318 |
{
|
| 2319 |
CPU_FloatU u1, u2; |
| 2320 |
u1.l = op1; |
| 2321 |
u2.l = op2; |
| 2322 |
return float32_eq(u1.f, u2.f, &env->spe_status) ? 4 : 0; |
| 2323 |
} |
| 2324 |
|
| 2325 |
static always_inline uint32_t efscmplt (uint32_t op1, uint32_t op2)
|
| 2326 |
{
|
| 2327 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
| 2328 |
return efststlt(op1, op2);
|
| 2329 |
} |
| 2330 |
|
| 2331 |
static always_inline uint32_t efscmpgt (uint32_t op1, uint32_t op2)
|
| 2332 |
{
|
| 2333 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
| 2334 |
return efststgt(op1, op2);
|
| 2335 |
} |
| 2336 |
|
| 2337 |
static always_inline uint32_t efscmpeq (uint32_t op1, uint32_t op2)
|
| 2338 |
{
|
| 2339 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
| 2340 |
return efststeq(op1, op2);
|
| 2341 |
} |
| 2342 |
|
| 2343 |
#define HELPER_SINGLE_SPE_CMP(name) \
|
| 2344 |
uint32_t helper_e##name (uint32_t op1, uint32_t op2) \ |
| 2345 |
{ \
|
| 2346 |
return e##name(op1, op2) << 2; \ |
| 2347 |
} |
| 2348 |
/* efststlt */
|
| 2349 |
HELPER_SINGLE_SPE_CMP(fststlt); |
| 2350 |
/* efststgt */
|
| 2351 |
HELPER_SINGLE_SPE_CMP(fststgt); |
| 2352 |
/* efststeq */
|
| 2353 |
HELPER_SINGLE_SPE_CMP(fststeq); |
| 2354 |
/* efscmplt */
|
| 2355 |
HELPER_SINGLE_SPE_CMP(fscmplt); |
| 2356 |
/* efscmpgt */
|
| 2357 |
HELPER_SINGLE_SPE_CMP(fscmpgt); |
| 2358 |
/* efscmpeq */
|
| 2359 |
HELPER_SINGLE_SPE_CMP(fscmpeq); |
| 2360 |
|
| 2361 |
static always_inline uint32_t evcmp_merge (int t0, int t1) |
| 2362 |
{
|
| 2363 |
return (t0 << 3) | (t1 << 2) | ((t0 | t1) << 1) | (t0 & t1); |
| 2364 |
} |
| 2365 |
|
| 2366 |
#define HELPER_VECTOR_SPE_CMP(name) \
|
| 2367 |
uint32_t helper_ev##name (uint64_t op1, uint64_t op2) \ |
| 2368 |
{ \
|
| 2369 |
return evcmp_merge(e##name(op1 >> 32, op2 >> 32), e##name(op1, op2)); \ |
| 2370 |
} |
| 2371 |
/* evfststlt */
|
| 2372 |
HELPER_VECTOR_SPE_CMP(fststlt); |
| 2373 |
/* evfststgt */
|
| 2374 |
HELPER_VECTOR_SPE_CMP(fststgt); |
| 2375 |
/* evfststeq */
|
| 2376 |
HELPER_VECTOR_SPE_CMP(fststeq); |
| 2377 |
/* evfscmplt */
|
| 2378 |
HELPER_VECTOR_SPE_CMP(fscmplt); |
| 2379 |
/* evfscmpgt */
|
| 2380 |
HELPER_VECTOR_SPE_CMP(fscmpgt); |
| 2381 |
/* evfscmpeq */
|
| 2382 |
HELPER_VECTOR_SPE_CMP(fscmpeq); |
| 2383 |
|
| 2384 |
/* Double-precision floating-point conversion */
|
| 2385 |
uint64_t helper_efdcfsi (uint32_t val) |
| 2386 |
{
|
| 2387 |
CPU_DoubleU u; |
| 2388 |
|
| 2389 |
u.d = int32_to_float64(val, &env->spe_status); |
| 2390 |
|
| 2391 |
return u.ll;
|
| 2392 |
} |
| 2393 |
|
| 2394 |
uint64_t helper_efdcfsid (uint64_t val) |
| 2395 |
{
|
| 2396 |
CPU_DoubleU u; |
| 2397 |
|
| 2398 |
u.d = int64_to_float64(val, &env->spe_status); |
| 2399 |
|
| 2400 |
return u.ll;
|
| 2401 |
} |
| 2402 |
|
| 2403 |
uint64_t helper_efdcfui (uint32_t val) |
| 2404 |
{
|
| 2405 |
CPU_DoubleU u; |
| 2406 |
|
| 2407 |
u.d = uint32_to_float64(val, &env->spe_status); |
| 2408 |
|
| 2409 |
return u.ll;
|
| 2410 |
} |
| 2411 |
|
| 2412 |
uint64_t helper_efdcfuid (uint64_t val) |
| 2413 |
{
|
| 2414 |
CPU_DoubleU u; |
| 2415 |
|
| 2416 |
u.d = uint64_to_float64(val, &env->spe_status); |
| 2417 |
|
| 2418 |
return u.ll;
|
| 2419 |
} |
| 2420 |
|
| 2421 |
uint32_t helper_efdctsi (uint64_t val) |
| 2422 |
{
|
| 2423 |
CPU_DoubleU u; |
| 2424 |
|
| 2425 |
u.ll = val; |
| 2426 |
/* NaN are not treated the same way IEEE 754 does */
|
| 2427 |
if (unlikely(float64_is_nan(u.d)))
|
| 2428 |
return 0; |
| 2429 |
|
| 2430 |
return float64_to_int32(u.d, &env->spe_status);
|
| 2431 |
} |
| 2432 |
|
| 2433 |
uint32_t helper_efdctui (uint64_t val) |
| 2434 |
{
|
| 2435 |
CPU_DoubleU u; |
| 2436 |
|
| 2437 |
u.ll = val; |
| 2438 |
/* NaN are not treated the same way IEEE 754 does */
|
| 2439 |
if (unlikely(float64_is_nan(u.d)))
|
| 2440 |
return 0; |
| 2441 |
|
| 2442 |
return float64_to_uint32(u.d, &env->spe_status);
|
| 2443 |
} |
| 2444 |
|
| 2445 |
uint32_t helper_efdctsiz (uint64_t val) |
| 2446 |
{
|
| 2447 |
CPU_DoubleU u; |
| 2448 |
|
| 2449 |
u.ll = val; |
| 2450 |
/* NaN are not treated the same way IEEE 754 does */
|
| 2451 |
if (unlikely(float64_is_nan(u.d)))
|
| 2452 |
return 0; |
| 2453 |
|
| 2454 |
return float64_to_int32_round_to_zero(u.d, &env->spe_status);
|
| 2455 |
} |
| 2456 |
|
| 2457 |
uint64_t helper_efdctsidz (uint64_t val) |
| 2458 |
{
|
| 2459 |
CPU_DoubleU u; |
| 2460 |
|
| 2461 |
u.ll = val; |
| 2462 |
/* NaN are not treated the same way IEEE 754 does */
|
| 2463 |
if (unlikely(float64_is_nan(u.d)))
|
| 2464 |
return 0; |
| 2465 |
|
| 2466 |
return float64_to_int64_round_to_zero(u.d, &env->spe_status);
|
| 2467 |
} |
| 2468 |
|
| 2469 |
uint32_t helper_efdctuiz (uint64_t val) |
| 2470 |
{
|
| 2471 |
CPU_DoubleU u; |
| 2472 |
|
| 2473 |
u.ll = val; |
| 2474 |
/* NaN are not treated the same way IEEE 754 does */
|
| 2475 |
if (unlikely(float64_is_nan(u.d)))
|
| 2476 |
return 0; |
| 2477 |
|
| 2478 |
return float64_to_uint32_round_to_zero(u.d, &env->spe_status);
|
| 2479 |
} |
| 2480 |
|
| 2481 |
uint64_t helper_efdctuidz (uint64_t val) |
| 2482 |
{
|
| 2483 |
CPU_DoubleU u; |
| 2484 |
|
| 2485 |
u.ll = val; |
| 2486 |
/* NaN are not treated the same way IEEE 754 does */
|
| 2487 |
if (unlikely(float64_is_nan(u.d)))
|
| 2488 |
return 0; |
| 2489 |
|
| 2490 |
return float64_to_uint64_round_to_zero(u.d, &env->spe_status);
|
| 2491 |
} |
| 2492 |
|
| 2493 |
uint64_t helper_efdcfsf (uint32_t val) |
| 2494 |
{
|
| 2495 |
CPU_DoubleU u; |
| 2496 |
float64 tmp; |
| 2497 |
|
| 2498 |
u.d = int32_to_float64(val, &env->spe_status); |
| 2499 |
tmp = int64_to_float64(1ULL << 32, &env->spe_status); |
| 2500 |
u.d = float64_div(u.d, tmp, &env->spe_status); |
| 2501 |
|
| 2502 |
return u.ll;
|
| 2503 |
} |
| 2504 |
|
| 2505 |
uint64_t helper_efdcfuf (uint32_t val) |
| 2506 |
{
|
| 2507 |
CPU_DoubleU u; |
| 2508 |
float64 tmp; |
| 2509 |
|
| 2510 |
u.d = uint32_to_float64(val, &env->spe_status); |
| 2511 |
tmp = int64_to_float64(1ULL << 32, &env->spe_status); |
| 2512 |
u.d = float64_div(u.d, tmp, &env->spe_status); |
| 2513 |
|
| 2514 |
return u.ll;
|
| 2515 |
} |
| 2516 |
|
| 2517 |
uint32_t helper_efdctsf (uint64_t val) |
| 2518 |
{
|
| 2519 |
CPU_DoubleU u; |
| 2520 |
float64 tmp; |
| 2521 |
|
| 2522 |
u.ll = val; |
| 2523 |
/* NaN are not treated the same way IEEE 754 does */
|
| 2524 |
if (unlikely(float64_is_nan(u.d)))
|
| 2525 |
return 0; |
| 2526 |
tmp = uint64_to_float64(1ULL << 32, &env->spe_status); |
| 2527 |
u.d = float64_mul(u.d, tmp, &env->spe_status); |
| 2528 |
|
| 2529 |
return float64_to_int32(u.d, &env->spe_status);
|
| 2530 |
} |
| 2531 |
|
| 2532 |
uint32_t helper_efdctuf (uint64_t val) |
| 2533 |
{
|
| 2534 |
CPU_DoubleU u; |
| 2535 |
float64 tmp; |
| 2536 |
|
| 2537 |
u.ll = val; |
| 2538 |
/* NaN are not treated the same way IEEE 754 does */
|
| 2539 |
if (unlikely(float64_is_nan(u.d)))
|
| 2540 |
return 0; |
| 2541 |
tmp = uint64_to_float64(1ULL << 32, &env->spe_status); |
| 2542 |
u.d = float64_mul(u.d, tmp, &env->spe_status); |
| 2543 |
|
| 2544 |
return float64_to_uint32(u.d, &env->spe_status);
|
| 2545 |
} |
| 2546 |
|
| 2547 |
uint32_t helper_efscfd (uint64_t val) |
| 2548 |
{
|
| 2549 |
CPU_DoubleU u1; |
| 2550 |
CPU_FloatU u2; |
| 2551 |
|
| 2552 |
u1.ll = val; |
| 2553 |
u2.f = float64_to_float32(u1.d, &env->spe_status); |
| 2554 |
|
| 2555 |
return u2.l;
|
| 2556 |
} |
| 2557 |
|
| 2558 |
uint64_t helper_efdcfs (uint32_t val) |
| 2559 |
{
|
| 2560 |
CPU_DoubleU u2; |
| 2561 |
CPU_FloatU u1; |
| 2562 |
|
| 2563 |
u1.l = val; |
| 2564 |
u2.d = float32_to_float64(u1.f, &env->spe_status); |
| 2565 |
|
| 2566 |
return u2.ll;
|
| 2567 |
} |
| 2568 |
|
| 2569 |
/* Double precision fixed-point arithmetic */
|
| 2570 |
uint64_t helper_efdadd (uint64_t op1, uint64_t op2) |
| 2571 |
{
|
| 2572 |
CPU_DoubleU u1, u2; |
| 2573 |
u1.ll = op1; |
| 2574 |
u2.ll = op2; |
| 2575 |
u1.d = float64_add(u1.d, u2.d, &env->spe_status); |
| 2576 |
return u1.ll;
|
| 2577 |
} |
| 2578 |
|
| 2579 |
uint64_t helper_efdsub (uint64_t op1, uint64_t op2) |
| 2580 |
{
|
| 2581 |
CPU_DoubleU u1, u2; |
| 2582 |
u1.ll = op1; |
| 2583 |
u2.ll = op2; |
| 2584 |
u1.d = float64_sub(u1.d, u2.d, &env->spe_status); |
| 2585 |
return u1.ll;
|
| 2586 |
} |
| 2587 |
|
| 2588 |
uint64_t helper_efdmul (uint64_t op1, uint64_t op2) |
| 2589 |
{
|
| 2590 |
CPU_DoubleU u1, u2; |
| 2591 |
u1.ll = op1; |
| 2592 |
u2.ll = op2; |
| 2593 |
u1.d = float64_mul(u1.d, u2.d, &env->spe_status); |
| 2594 |
return u1.ll;
|
| 2595 |
} |
| 2596 |
|
| 2597 |
uint64_t helper_efddiv (uint64_t op1, uint64_t op2) |
| 2598 |
{
|
| 2599 |
CPU_DoubleU u1, u2; |
| 2600 |
u1.ll = op1; |
| 2601 |
u2.ll = op2; |
| 2602 |
u1.d = float64_div(u1.d, u2.d, &env->spe_status); |
| 2603 |
return u1.ll;
|
| 2604 |
} |
| 2605 |
|
| 2606 |
/* Double precision floating point helpers */
|
| 2607 |
uint32_t helper_efdtstlt (uint64_t op1, uint64_t op2) |
| 2608 |
{
|
| 2609 |
CPU_DoubleU u1, u2; |
| 2610 |
u1.ll = op1; |
| 2611 |
u2.ll = op2; |
| 2612 |
return float64_lt(u1.d, u2.d, &env->spe_status) ? 4 : 0; |
| 2613 |
} |
| 2614 |
|
| 2615 |
uint32_t helper_efdtstgt (uint64_t op1, uint64_t op2) |
| 2616 |
{
|
| 2617 |
CPU_DoubleU u1, u2; |
| 2618 |
u1.ll = op1; |
| 2619 |
u2.ll = op2; |
| 2620 |
return float64_le(u1.d, u2.d, &env->spe_status) ? 0 : 4; |
| 2621 |
} |
| 2622 |
|
| 2623 |
uint32_t helper_efdtsteq (uint64_t op1, uint64_t op2) |
| 2624 |
{
|
| 2625 |
CPU_DoubleU u1, u2; |
| 2626 |
u1.ll = op1; |
| 2627 |
u2.ll = op2; |
| 2628 |
return float64_eq(u1.d, u2.d, &env->spe_status) ? 4 : 0; |
| 2629 |
} |
| 2630 |
|
| 2631 |
uint32_t helper_efdcmplt (uint64_t op1, uint64_t op2) |
| 2632 |
{
|
| 2633 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
| 2634 |
return helper_efdtstlt(op1, op2);
|
| 2635 |
} |
| 2636 |
|
| 2637 |
uint32_t helper_efdcmpgt (uint64_t op1, uint64_t op2) |
| 2638 |
{
|
| 2639 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
| 2640 |
return helper_efdtstgt(op1, op2);
|
| 2641 |
} |
| 2642 |
|
| 2643 |
uint32_t helper_efdcmpeq (uint64_t op1, uint64_t op2) |
| 2644 |
{
|
| 2645 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
| 2646 |
return helper_efdtsteq(op1, op2);
|
| 2647 |
} |
| 2648 |
|
| 2649 |
/*****************************************************************************/
|
| 2650 |
/* Softmmu support */
|
| 2651 |
#if !defined (CONFIG_USER_ONLY)
|
| 2652 |
|
| 2653 |
#define MMUSUFFIX _mmu
|
| 2654 |
|
| 2655 |
#define SHIFT 0 |
| 2656 |
#include "softmmu_template.h" |
| 2657 |
|
| 2658 |
#define SHIFT 1 |
| 2659 |
#include "softmmu_template.h" |
| 2660 |
|
| 2661 |
#define SHIFT 2 |
| 2662 |
#include "softmmu_template.h" |
| 2663 |
|
| 2664 |
#define SHIFT 3 |
| 2665 |
#include "softmmu_template.h" |
| 2666 |
|
| 2667 |
/* try to fill the TLB and return an exception if error. If retaddr is
|
| 2668 |
NULL, it means that the function was called in C code (i.e. not
|
| 2669 |
from generated code or from helper.c) */
|
| 2670 |
/* XXX: fix it to restore all registers */
|
| 2671 |
void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr) |
| 2672 |
{
|
| 2673 |
TranslationBlock *tb; |
| 2674 |
CPUState *saved_env; |
| 2675 |
unsigned long pc; |
| 2676 |
int ret;
|
| 2677 |
|
| 2678 |
/* XXX: hack to restore env in all cases, even if not called from
|
| 2679 |
generated code */
|
| 2680 |
saved_env = env; |
| 2681 |
env = cpu_single_env; |
| 2682 |
ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
|
| 2683 |
if (unlikely(ret != 0)) { |
| 2684 |
if (likely(retaddr)) {
|
| 2685 |
/* now we have a real cpu fault */
|
| 2686 |
pc = (unsigned long)retaddr; |
| 2687 |
tb = tb_find_pc(pc); |
| 2688 |
if (likely(tb)) {
|
| 2689 |
/* the PC is inside the translated code. It means that we have
|
| 2690 |
a virtual CPU fault */
|
| 2691 |
cpu_restore_state(tb, env, pc, NULL);
|
| 2692 |
} |
| 2693 |
} |
| 2694 |
helper_raise_exception_err(env->exception_index, env->error_code); |
| 2695 |
} |
| 2696 |
env = saved_env; |
| 2697 |
} |
| 2698 |
|
| 2699 |
/* Segment registers load and store */
|
| 2700 |
target_ulong helper_load_sr (target_ulong sr_num) |
| 2701 |
{
|
| 2702 |
return env->sr[sr_num];
|
| 2703 |
} |
| 2704 |
|
| 2705 |
void helper_store_sr (target_ulong sr_num, target_ulong val)
|
| 2706 |
{
|
| 2707 |
ppc_store_sr(env, sr_num, val); |
| 2708 |
} |
| 2709 |
|
| 2710 |
/* SLB management */
|
| 2711 |
#if defined(TARGET_PPC64)
|
| 2712 |
target_ulong helper_load_slb (target_ulong slb_nr) |
| 2713 |
{
|
| 2714 |
return ppc_load_slb(env, slb_nr);
|
| 2715 |
} |
| 2716 |
|
| 2717 |
void helper_store_slb (target_ulong slb_nr, target_ulong rs)
|
| 2718 |
{
|
| 2719 |
ppc_store_slb(env, slb_nr, rs); |
| 2720 |
} |
| 2721 |
|
| 2722 |
void helper_slbia (void) |
| 2723 |
{
|
| 2724 |
ppc_slb_invalidate_all(env); |
| 2725 |
} |
| 2726 |
|
| 2727 |
void helper_slbie (target_ulong addr)
|
| 2728 |
{
|
| 2729 |
ppc_slb_invalidate_one(env, addr); |
| 2730 |
} |
| 2731 |
|
| 2732 |
#endif /* defined(TARGET_PPC64) */ |
| 2733 |
|
| 2734 |
/* TLB management */
|
| 2735 |
void helper_tlbia (void) |
| 2736 |
{
|
| 2737 |
ppc_tlb_invalidate_all(env); |
| 2738 |
} |
| 2739 |
|
| 2740 |
void helper_tlbie (target_ulong addr)
|
| 2741 |
{
|
| 2742 |
ppc_tlb_invalidate_one(env, addr); |
| 2743 |
} |
| 2744 |
|
| 2745 |
/* Software driven TLBs management */
|
| 2746 |
/* PowerPC 602/603 software TLB load instructions helpers */
|
| 2747 |
static void do_6xx_tlb (target_ulong new_EPN, int is_code) |
| 2748 |
{
|
| 2749 |
target_ulong RPN, CMP, EPN; |
| 2750 |
int way;
|
| 2751 |
|
| 2752 |
RPN = env->spr[SPR_RPA]; |
| 2753 |
if (is_code) {
|
| 2754 |
CMP = env->spr[SPR_ICMP]; |
| 2755 |
EPN = env->spr[SPR_IMISS]; |
| 2756 |
} else {
|
| 2757 |
CMP = env->spr[SPR_DCMP]; |
| 2758 |
EPN = env->spr[SPR_DMISS]; |
| 2759 |
} |
| 2760 |
way = (env->spr[SPR_SRR1] >> 17) & 1; |
| 2761 |
#if defined (DEBUG_SOFTWARE_TLB)
|
| 2762 |
if (loglevel != 0) { |
| 2763 |
fprintf(logfile, "%s: EPN " ADDRX " " ADDRX " PTE0 " ADDRX |
| 2764 |
" PTE1 " ADDRX " way %d\n", |
| 2765 |
__func__, new_EPN, EPN, CMP, RPN, way); |
| 2766 |
} |
| 2767 |
#endif
|
| 2768 |
/* Store this TLB */
|
| 2769 |
ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK), |
| 2770 |
way, is_code, CMP, RPN); |
| 2771 |
} |
| 2772 |
|
| 2773 |
void helper_6xx_tlbd (target_ulong EPN)
|
| 2774 |
{
|
| 2775 |
do_6xx_tlb(EPN, 0);
|
| 2776 |
} |
| 2777 |
|
| 2778 |
void helper_6xx_tlbi (target_ulong EPN)
|
| 2779 |
{
|
| 2780 |
do_6xx_tlb(EPN, 1);
|
| 2781 |
} |
| 2782 |
|
| 2783 |
/* PowerPC 74xx software TLB load instructions helpers */
|
| 2784 |
static void do_74xx_tlb (target_ulong new_EPN, int is_code) |
| 2785 |
{
|
| 2786 |
target_ulong RPN, CMP, EPN; |
| 2787 |
int way;
|
| 2788 |
|
| 2789 |
RPN = env->spr[SPR_PTELO]; |
| 2790 |
CMP = env->spr[SPR_PTEHI]; |
| 2791 |
EPN = env->spr[SPR_TLBMISS] & ~0x3;
|
| 2792 |
way = env->spr[SPR_TLBMISS] & 0x3;
|
| 2793 |
#if defined (DEBUG_SOFTWARE_TLB)
|
| 2794 |
if (loglevel != 0) { |
| 2795 |
fprintf(logfile, "%s: EPN " ADDRX " " ADDRX " PTE0 " ADDRX |
| 2796 |
" PTE1 " ADDRX " way %d\n", |
| 2797 |
__func__, new_EPN, EPN, CMP, RPN, way); |
| 2798 |
} |
| 2799 |
#endif
|
| 2800 |
/* Store this TLB */
|
| 2801 |
ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK), |
| 2802 |
way, is_code, CMP, RPN); |
| 2803 |
} |
| 2804 |
|
| 2805 |
void helper_74xx_tlbd (target_ulong EPN)
|
| 2806 |
{
|
| 2807 |
do_74xx_tlb(EPN, 0);
|
| 2808 |
} |
| 2809 |
|
| 2810 |
void helper_74xx_tlbi (target_ulong EPN)
|
| 2811 |
{
|
| 2812 |
do_74xx_tlb(EPN, 1);
|
| 2813 |
} |
| 2814 |
|
| 2815 |
static always_inline target_ulong booke_tlb_to_page_size (int size) |
| 2816 |
{
|
| 2817 |
return 1024 << (2 * size); |
| 2818 |
} |
| 2819 |
|
| 2820 |
static always_inline int booke_page_size_to_tlb (target_ulong page_size) |
| 2821 |
{
|
| 2822 |
int size;
|
| 2823 |
|
| 2824 |
switch (page_size) {
|
| 2825 |
case 0x00000400UL: |
| 2826 |
size = 0x0;
|
| 2827 |
break;
|
| 2828 |
case 0x00001000UL: |
| 2829 |
size = 0x1;
|
| 2830 |
break;
|
| 2831 |
case 0x00004000UL: |
| 2832 |
size = 0x2;
|
| 2833 |
break;
|
| 2834 |
case 0x00010000UL: |
| 2835 |
size = 0x3;
|
| 2836 |
break;
|
| 2837 |
case 0x00040000UL: |
| 2838 |
size = 0x4;
|
| 2839 |
break;
|
| 2840 |
case 0x00100000UL: |
| 2841 |
size = 0x5;
|
| 2842 |
break;
|
| 2843 |
case 0x00400000UL: |
| 2844 |
size = 0x6;
|
| 2845 |
break;
|
| 2846 |
case 0x01000000UL: |
| 2847 |
size = 0x7;
|
| 2848 |
break;
|
| 2849 |
case 0x04000000UL: |
| 2850 |
size = 0x8;
|
| 2851 |
break;
|
| 2852 |
case 0x10000000UL: |
| 2853 |
size = 0x9;
|
| 2854 |
break;
|
| 2855 |
case 0x40000000UL: |
| 2856 |
size = 0xA;
|
| 2857 |
break;
|
| 2858 |
#if defined (TARGET_PPC64)
|
| 2859 |
case 0x000100000000ULL: |
| 2860 |
size = 0xB;
|
| 2861 |
break;
|
| 2862 |
case 0x000400000000ULL: |
| 2863 |
size = 0xC;
|
| 2864 |
break;
|
| 2865 |
case 0x001000000000ULL: |
| 2866 |
size = 0xD;
|
| 2867 |
break;
|
| 2868 |
case 0x004000000000ULL: |
| 2869 |
size = 0xE;
|
| 2870 |
break;
|
| 2871 |
case 0x010000000000ULL: |
| 2872 |
size = 0xF;
|
| 2873 |
break;
|
| 2874 |
#endif
|
| 2875 |
default:
|
| 2876 |
size = -1;
|
| 2877 |
break;
|
| 2878 |
} |
| 2879 |
|
| 2880 |
return size;
|
| 2881 |
} |
| 2882 |
|
| 2883 |
/* Helpers for 4xx TLB management */
|
| 2884 |
target_ulong helper_4xx_tlbre_lo (target_ulong entry) |
| 2885 |
{
|
| 2886 |
ppcemb_tlb_t *tlb; |
| 2887 |
target_ulong ret; |
| 2888 |
int size;
|
| 2889 |
|
| 2890 |
entry &= 0x3F;
|
| 2891 |
tlb = &env->tlb[entry].tlbe; |
| 2892 |
ret = tlb->EPN; |
| 2893 |
if (tlb->prot & PAGE_VALID)
|
| 2894 |
ret |= 0x400;
|
| 2895 |
size = booke_page_size_to_tlb(tlb->size); |
| 2896 |
if (size < 0 || size > 0x7) |
| 2897 |
size = 1;
|
| 2898 |
ret |= size << 7;
|
| 2899 |
env->spr[SPR_40x_PID] = tlb->PID; |
| 2900 |
return ret;
|
| 2901 |
} |
| 2902 |
|
| 2903 |
target_ulong helper_4xx_tlbre_hi (target_ulong entry) |
| 2904 |
{
|
| 2905 |
ppcemb_tlb_t *tlb; |
| 2906 |
target_ulong ret; |
| 2907 |
|
| 2908 |
entry &= 0x3F;
|
| 2909 |
tlb = &env->tlb[entry].tlbe; |
| 2910 |
ret = tlb->RPN; |
| 2911 |
if (tlb->prot & PAGE_EXEC)
|
| 2912 |
ret |= 0x200;
|
| 2913 |
if (tlb->prot & PAGE_WRITE)
|
| 2914 |
ret |= 0x100;
|
| 2915 |
return ret;
|
| 2916 |
} |
| 2917 |
|
| 2918 |
void helper_4xx_tlbwe_hi (target_ulong entry, target_ulong val)
|
| 2919 |
{
|
| 2920 |
ppcemb_tlb_t *tlb; |
| 2921 |
target_ulong page, end; |
| 2922 |
|
| 2923 |
#if defined (DEBUG_SOFTWARE_TLB)
|
| 2924 |
if (loglevel != 0) { |
| 2925 |
fprintf(logfile, "%s entry %d val " ADDRX "\n", __func__, (int)entry, val); |
| 2926 |
} |
| 2927 |
#endif
|
| 2928 |
entry &= 0x3F;
|
| 2929 |
tlb = &env->tlb[entry].tlbe; |
| 2930 |
/* Invalidate previous TLB (if it's valid) */
|
| 2931 |
if (tlb->prot & PAGE_VALID) {
|
| 2932 |
end = tlb->EPN + tlb->size; |
| 2933 |
#if defined (DEBUG_SOFTWARE_TLB)
|
| 2934 |
if (loglevel != 0) { |
| 2935 |
fprintf(logfile, "%s: invalidate old TLB %d start " ADDRX
|
| 2936 |
" end " ADDRX "\n", __func__, (int)entry, tlb->EPN, end); |
| 2937 |
} |
| 2938 |
#endif
|
| 2939 |
for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
|
| 2940 |
tlb_flush_page(env, page); |
| 2941 |
} |
| 2942 |
tlb->size = booke_tlb_to_page_size((val >> 7) & 0x7); |
| 2943 |
/* We cannot handle TLB size < TARGET_PAGE_SIZE.
|
| 2944 |
* If this ever occurs, one should use the ppcemb target instead
|
| 2945 |
* of the ppc or ppc64 one
|
| 2946 |
*/
|
| 2947 |
if ((val & 0x40) && tlb->size < TARGET_PAGE_SIZE) { |
| 2948 |
cpu_abort(env, "TLB size " TARGET_FMT_lu " < %u " |
| 2949 |
"are not supported (%d)\n",
|
| 2950 |
tlb->size, TARGET_PAGE_SIZE, (int)((val >> 7) & 0x7)); |
| 2951 |
} |
| 2952 |
tlb->EPN = val & ~(tlb->size - 1);
|
| 2953 |
if (val & 0x40) |
| 2954 |
tlb->prot |= PAGE_VALID; |
| 2955 |
else
|
| 2956 |
tlb->prot &= ~PAGE_VALID; |
| 2957 |
if (val & 0x20) { |
| 2958 |
/* XXX: TO BE FIXED */
|
| 2959 |
cpu_abort(env, "Little-endian TLB entries are not supported by now\n");
|
| 2960 |
} |
| 2961 |
tlb->PID = env->spr[SPR_40x_PID]; /* PID */
|
| 2962 |
tlb->attr = val & 0xFF;
|
| 2963 |
#if defined (DEBUG_SOFTWARE_TLB)
|
| 2964 |
if (loglevel != 0) { |
| 2965 |
fprintf(logfile, "%s: set up TLB %d RPN " PADDRX " EPN " ADDRX |
| 2966 |
" size " ADDRX " prot %c%c%c%c PID %d\n", __func__, |
| 2967 |
(int)entry, tlb->RPN, tlb->EPN, tlb->size,
|
| 2968 |
tlb->prot & PAGE_READ ? 'r' : '-', |
| 2969 |
tlb->prot & PAGE_WRITE ? 'w' : '-', |
| 2970 |
tlb->prot & PAGE_EXEC ? 'x' : '-', |
| 2971 |
tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID); |
| 2972 |
} |
| 2973 |
#endif
|
| 2974 |
/* Invalidate new TLB (if valid) */
|
| 2975 |
if (tlb->prot & PAGE_VALID) {
|
| 2976 |
end = tlb->EPN + tlb->size; |
| 2977 |
#if defined (DEBUG_SOFTWARE_TLB)
|
| 2978 |
if (loglevel != 0) { |
| 2979 |
fprintf(logfile, "%s: invalidate TLB %d start " ADDRX
|
| 2980 |
" end " ADDRX "\n", __func__, (int)entry, tlb->EPN, end); |
| 2981 |
} |
| 2982 |
#endif
|
| 2983 |
for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
|
| 2984 |
tlb_flush_page(env, page); |
| 2985 |
} |
| 2986 |
} |
| 2987 |
|
| 2988 |
void helper_4xx_tlbwe_lo (target_ulong entry, target_ulong val)
|
| 2989 |
{
|
| 2990 |
ppcemb_tlb_t *tlb; |
| 2991 |
|
| 2992 |
#if defined (DEBUG_SOFTWARE_TLB)
|
| 2993 |
if (loglevel != 0) { |
| 2994 |
fprintf(logfile, "%s entry %i val " ADDRX "\n", __func__, (int)entry, val); |
| 2995 |
} |
| 2996 |
#endif
|
| 2997 |
entry &= 0x3F;
|
| 2998 |
tlb = &env->tlb[entry].tlbe; |
| 2999 |
tlb->RPN = val & 0xFFFFFC00;
|
| 3000 |
tlb->prot = PAGE_READ; |
| 3001 |
if (val & 0x200) |
| 3002 |
tlb->prot |= PAGE_EXEC; |
| 3003 |
if (val & 0x100) |
| 3004 |
tlb->prot |= PAGE_WRITE; |
| 3005 |
#if defined (DEBUG_SOFTWARE_TLB)
|
| 3006 |
if (loglevel != 0) { |
| 3007 |
fprintf(logfile, "%s: set up TLB %d RPN " PADDRX " EPN " ADDRX |
| 3008 |
" size " ADDRX " prot %c%c%c%c PID %d\n", __func__, |
| 3009 |
(int)entry, tlb->RPN, tlb->EPN, tlb->size,
|
| 3010 |
tlb->prot & PAGE_READ ? 'r' : '-', |
| 3011 |
tlb->prot & PAGE_WRITE ? 'w' : '-', |
| 3012 |
tlb->prot & PAGE_EXEC ? 'x' : '-', |
| 3013 |
tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID); |
| 3014 |
} |
| 3015 |
#endif
|
| 3016 |
} |
| 3017 |
|
| 3018 |
target_ulong helper_4xx_tlbsx (target_ulong address) |
| 3019 |
{
|
| 3020 |
return ppcemb_tlb_search(env, address, env->spr[SPR_40x_PID]);
|
| 3021 |
} |
| 3022 |
|
| 3023 |
/* PowerPC 440 TLB management */
|
| 3024 |
void helper_440_tlbwe (uint32_t word, target_ulong entry, target_ulong value)
|
| 3025 |
{
|
| 3026 |
ppcemb_tlb_t *tlb; |
| 3027 |
target_ulong EPN, RPN, size; |
| 3028 |
int do_flush_tlbs;
|
| 3029 |
|
| 3030 |
#if defined (DEBUG_SOFTWARE_TLB)
|
| 3031 |
if (loglevel != 0) { |
| 3032 |
fprintf(logfile, "%s word %d entry %d value " ADDRX "\n", |
| 3033 |
__func__, word, (int)entry, value);
|
| 3034 |
} |
| 3035 |
#endif
|
| 3036 |
do_flush_tlbs = 0;
|
| 3037 |
entry &= 0x3F;
|
| 3038 |
tlb = &env->tlb[entry].tlbe; |
| 3039 |
switch (word) {
|
| 3040 |
default:
|
| 3041 |
/* Just here to please gcc */
|
| 3042 |
case 0: |
| 3043 |
EPN = value & 0xFFFFFC00;
|
| 3044 |
if ((tlb->prot & PAGE_VALID) && EPN != tlb->EPN)
|
| 3045 |
do_flush_tlbs = 1;
|
| 3046 |
tlb->EPN = EPN; |
| 3047 |
size = booke_tlb_to_page_size((value >> 4) & 0xF); |
| 3048 |
if ((tlb->prot & PAGE_VALID) && tlb->size < size)
|
| 3049 |
do_flush_tlbs = 1;
|
| 3050 |
tlb->size = size; |
| 3051 |
tlb->attr &= ~0x1;
|
| 3052 |
tlb->attr |= (value >> 8) & 1; |
| 3053 |
if (value & 0x200) { |
| 3054 |
tlb->prot |= PAGE_VALID; |
| 3055 |
} else {
|
| 3056 |
if (tlb->prot & PAGE_VALID) {
|
| 3057 |
tlb->prot &= ~PAGE_VALID; |
| 3058 |
do_flush_tlbs = 1;
|
| 3059 |
} |
| 3060 |
} |
| 3061 |
tlb->PID = env->spr[SPR_440_MMUCR] & 0x000000FF;
|
| 3062 |
if (do_flush_tlbs)
|
| 3063 |
tlb_flush(env, 1);
|
| 3064 |
break;
|
| 3065 |
case 1: |
| 3066 |
RPN = value & 0xFFFFFC0F;
|
| 3067 |
if ((tlb->prot & PAGE_VALID) && tlb->RPN != RPN)
|
| 3068 |
tlb_flush(env, 1);
|
| 3069 |
tlb->RPN = RPN; |
| 3070 |
break;
|
| 3071 |
case 2: |
| 3072 |
tlb->attr = (tlb->attr & 0x1) | (value & 0x0000FF00); |
| 3073 |
tlb->prot = tlb->prot & PAGE_VALID; |
| 3074 |
if (value & 0x1) |
| 3075 |
tlb->prot |= PAGE_READ << 4;
|
| 3076 |
if (value & 0x2) |
| 3077 |
tlb->prot |= PAGE_WRITE << 4;
|
| 3078 |
if (value & 0x4) |
| 3079 |
tlb->prot |= PAGE_EXEC << 4;
|
| 3080 |
if (value & 0x8) |
| 3081 |
tlb->prot |= PAGE_READ; |
| 3082 |
if (value & 0x10) |
| 3083 |
tlb->prot |= PAGE_WRITE; |
| 3084 |
if (value & 0x20) |
| 3085 |
tlb->prot |= PAGE_EXEC; |
| 3086 |
break;
|
| 3087 |
} |
| 3088 |
} |
| 3089 |
|
| 3090 |
target_ulong helper_440_tlbre (uint32_t word, target_ulong entry) |
| 3091 |
{
|
| 3092 |
ppcemb_tlb_t *tlb; |
| 3093 |
target_ulong ret; |
| 3094 |
int size;
|
| 3095 |
|
| 3096 |
entry &= 0x3F;
|
| 3097 |
tlb = &env->tlb[entry].tlbe; |
| 3098 |
switch (word) {
|
| 3099 |
default:
|
| 3100 |
/* Just here to please gcc */
|
| 3101 |
case 0: |
| 3102 |
ret = tlb->EPN; |
| 3103 |
size = booke_page_size_to_tlb(tlb->size); |
| 3104 |
if (size < 0 || size > 0xF) |
| 3105 |
size = 1;
|
| 3106 |
ret |= size << 4;
|
| 3107 |
if (tlb->attr & 0x1) |
| 3108 |
ret |= 0x100;
|
| 3109 |
if (tlb->prot & PAGE_VALID)
|
| 3110 |
ret |= 0x200;
|
| 3111 |
env->spr[SPR_440_MMUCR] &= ~0x000000FF;
|
| 3112 |
env->spr[SPR_440_MMUCR] |= tlb->PID; |
| 3113 |
break;
|
| 3114 |
case 1: |
| 3115 |
ret = tlb->RPN; |
| 3116 |
break;
|
| 3117 |
case 2: |
| 3118 |
ret = tlb->attr & ~0x1;
|
| 3119 |
if (tlb->prot & (PAGE_READ << 4)) |
| 3120 |
ret |= 0x1;
|
| 3121 |
if (tlb->prot & (PAGE_WRITE << 4)) |
| 3122 |
ret |= 0x2;
|
| 3123 |
if (tlb->prot & (PAGE_EXEC << 4)) |
| 3124 |
ret |= 0x4;
|
| 3125 |
if (tlb->prot & PAGE_READ)
|
| 3126 |
ret |= 0x8;
|
| 3127 |
if (tlb->prot & PAGE_WRITE)
|
| 3128 |
ret |= 0x10;
|
| 3129 |
if (tlb->prot & PAGE_EXEC)
|
| 3130 |
ret |= 0x20;
|
| 3131 |
break;
|
| 3132 |
} |
| 3133 |
return ret;
|
| 3134 |
} |
| 3135 |
|
| 3136 |
target_ulong helper_440_tlbsx (target_ulong address) |
| 3137 |
{
|
| 3138 |
return ppcemb_tlb_search(env, address, env->spr[SPR_440_MMUCR] & 0xFF); |
| 3139 |
} |
| 3140 |
|
| 3141 |
#endif /* !CONFIG_USER_ONLY */ |