root / target-ppc / op_helper.c @ 3b430048
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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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 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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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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} |
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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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} |
385 |
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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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} |
398 |
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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} |
407 |
} |
408 |
return i;
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} |
410 |
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/*****************************************************************************/
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/* Fixed point operations helpers */
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#if defined(TARGET_PPC64)
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415 |
/* multiply high word */
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uint64_t helper_mulhd (uint64_t arg1, uint64_t arg2) |
417 |
{ |
418 |
uint64_t tl, th; |
419 |
|
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muls64(&tl, &th, arg1, arg2); |
421 |
return th;
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422 |
} |
423 |
|
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/* multiply high word unsigned */
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uint64_t helper_mulhdu (uint64_t arg1, uint64_t arg2) |
426 |
{ |
427 |
uint64_t tl, th; |
428 |
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mulu64(&tl, &th, arg1, arg2); |
430 |
return th;
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431 |
} |
432 |
|
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uint64_t helper_mulldo (uint64_t arg1, uint64_t arg2) |
434 |
{ |
435 |
int64_t th; |
436 |
uint64_t tl; |
437 |
|
438 |
muls64(&tl, (uint64_t *)&th, arg1, arg2); |
439 |
/* If th != 0 && th != -1, then we had an overflow */
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440 |
if (likely((uint64_t)(th + 1) <= 1)) { |
441 |
env->xer &= ~(1 << XER_OV);
|
442 |
} else {
|
443 |
env->xer |= (1 << XER_OV) | (1 << XER_SO); |
444 |
} |
445 |
return (int64_t)tl;
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} |
447 |
#endif
|
448 |
|
449 |
target_ulong helper_cntlzw (target_ulong t) |
450 |
{ |
451 |
return clz32(t);
|
452 |
} |
453 |
|
454 |
#if defined(TARGET_PPC64)
|
455 |
target_ulong helper_cntlzd (target_ulong t) |
456 |
{ |
457 |
return clz64(t);
|
458 |
} |
459 |
#endif
|
460 |
|
461 |
/* shift right arithmetic helper */
|
462 |
target_ulong helper_sraw (target_ulong value, target_ulong shift) |
463 |
{ |
464 |
int32_t ret; |
465 |
|
466 |
if (likely(!(shift & 0x20))) { |
467 |
if (likely((uint32_t)shift != 0)) { |
468 |
shift &= 0x1f;
|
469 |
ret = (int32_t)value >> shift; |
470 |
if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) { |
471 |
env->xer &= ~(1 << XER_CA);
|
472 |
} else {
|
473 |
env->xer |= (1 << XER_CA);
|
474 |
} |
475 |
} else {
|
476 |
ret = (int32_t)value; |
477 |
env->xer &= ~(1 << XER_CA);
|
478 |
} |
479 |
} else {
|
480 |
ret = (int32_t)value >> 31;
|
481 |
if (ret) {
|
482 |
env->xer |= (1 << XER_CA);
|
483 |
} else {
|
484 |
env->xer &= ~(1 << XER_CA);
|
485 |
} |
486 |
} |
487 |
return (target_long)ret;
|
488 |
} |
489 |
|
490 |
#if defined(TARGET_PPC64)
|
491 |
target_ulong helper_srad (target_ulong value, target_ulong shift) |
492 |
{ |
493 |
int64_t ret; |
494 |
|
495 |
if (likely(!(shift & 0x40))) { |
496 |
if (likely((uint64_t)shift != 0)) { |
497 |
shift &= 0x3f;
|
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ret = (int64_t)value >> shift; |
499 |
if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) { |
500 |
env->xer &= ~(1 << XER_CA);
|
501 |
} else {
|
502 |
env->xer |= (1 << XER_CA);
|
503 |
} |
504 |
} else {
|
505 |
ret = (int64_t)value; |
506 |
env->xer &= ~(1 << XER_CA);
|
507 |
} |
508 |
} else {
|
509 |
ret = (int64_t)value >> 63;
|
510 |
if (ret) {
|
511 |
env->xer |= (1 << XER_CA);
|
512 |
} else {
|
513 |
env->xer &= ~(1 << XER_CA);
|
514 |
} |
515 |
} |
516 |
return ret;
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517 |
} |
518 |
#endif
|
519 |
|
520 |
target_ulong helper_popcntb (target_ulong val) |
521 |
{ |
522 |
val = (val & 0x55555555) + ((val >> 1) & 0x55555555); |
523 |
val = (val & 0x33333333) + ((val >> 2) & 0x33333333); |
524 |
val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f); |
525 |
return val;
|
526 |
} |
527 |
|
528 |
#if defined(TARGET_PPC64)
|
529 |
target_ulong helper_popcntb_64 (target_ulong val) |
530 |
{ |
531 |
val = (val & 0x5555555555555555ULL) + ((val >> 1) & 0x5555555555555555ULL); |
532 |
val = (val & 0x3333333333333333ULL) + ((val >> 2) & 0x3333333333333333ULL); |
533 |
val = (val & 0x0f0f0f0f0f0f0f0fULL) + ((val >> 4) & 0x0f0f0f0f0f0f0f0fULL); |
534 |
return val;
|
535 |
} |
536 |
#endif
|
537 |
|
538 |
/*****************************************************************************/
|
539 |
/* Floating point operations helpers */
|
540 |
uint64_t helper_float32_to_float64(uint32_t arg) |
541 |
{ |
542 |
CPU_FloatU f; |
543 |
CPU_DoubleU d; |
544 |
f.l = arg; |
545 |
d.d = float32_to_float64(f.f, &env->fp_status); |
546 |
return d.ll;
|
547 |
} |
548 |
|
549 |
uint32_t helper_float64_to_float32(uint64_t arg) |
550 |
{ |
551 |
CPU_FloatU f; |
552 |
CPU_DoubleU d; |
553 |
d.ll = arg; |
554 |
f.f = float64_to_float32(d.d, &env->fp_status); |
555 |
return f.l;
|
556 |
} |
557 |
|
558 |
static always_inline int isden (float64 d) |
559 |
{ |
560 |
CPU_DoubleU u; |
561 |
|
562 |
u.d = d; |
563 |
|
564 |
return ((u.ll >> 52) & 0x7FF) == 0; |
565 |
} |
566 |
|
567 |
uint32_t helper_compute_fprf (uint64_t arg, uint32_t set_fprf) |
568 |
{ |
569 |
CPU_DoubleU farg; |
570 |
int isneg;
|
571 |
int ret;
|
572 |
farg.ll = arg; |
573 |
isneg = float64_is_neg(farg.d); |
574 |
if (unlikely(float64_is_nan(farg.d))) {
|
575 |
if (float64_is_signaling_nan(farg.d)) {
|
576 |
/* Signaling NaN: flags are undefined */
|
577 |
ret = 0x00;
|
578 |
} else {
|
579 |
/* Quiet NaN */
|
580 |
ret = 0x11;
|
581 |
} |
582 |
} else if (unlikely(float64_is_infinity(farg.d))) { |
583 |
/* +/- infinity */
|
584 |
if (isneg)
|
585 |
ret = 0x09;
|
586 |
else
|
587 |
ret = 0x05;
|
588 |
} else {
|
589 |
if (float64_is_zero(farg.d)) {
|
590 |
/* +/- zero */
|
591 |
if (isneg)
|
592 |
ret = 0x12;
|
593 |
else
|
594 |
ret = 0x02;
|
595 |
} else {
|
596 |
if (isden(farg.d)) {
|
597 |
/* Denormalized numbers */
|
598 |
ret = 0x10;
|
599 |
} else {
|
600 |
/* Normalized numbers */
|
601 |
ret = 0x00;
|
602 |
} |
603 |
if (isneg) {
|
604 |
ret |= 0x08;
|
605 |
} else {
|
606 |
ret |= 0x04;
|
607 |
} |
608 |
} |
609 |
} |
610 |
if (set_fprf) {
|
611 |
/* We update FPSCR_FPRF */
|
612 |
env->fpscr &= ~(0x1F << FPSCR_FPRF);
|
613 |
env->fpscr |= ret << FPSCR_FPRF; |
614 |
} |
615 |
/* We just need fpcc to update Rc1 */
|
616 |
return ret & 0xF; |
617 |
} |
618 |
|
619 |
/* Floating-point invalid operations exception */
|
620 |
static always_inline uint64_t fload_invalid_op_excp (int op) |
621 |
{ |
622 |
uint64_t ret = 0;
|
623 |
int ve;
|
624 |
|
625 |
ve = fpscr_ve; |
626 |
switch (op) {
|
627 |
case POWERPC_EXCP_FP_VXSNAN:
|
628 |
env->fpscr |= 1 << FPSCR_VXSNAN;
|
629 |
break;
|
630 |
case POWERPC_EXCP_FP_VXSOFT:
|
631 |
env->fpscr |= 1 << FPSCR_VXSOFT;
|
632 |
break;
|
633 |
case POWERPC_EXCP_FP_VXISI:
|
634 |
/* Magnitude subtraction of infinities */
|
635 |
env->fpscr |= 1 << FPSCR_VXISI;
|
636 |
goto update_arith;
|
637 |
case POWERPC_EXCP_FP_VXIDI:
|
638 |
/* Division of infinity by infinity */
|
639 |
env->fpscr |= 1 << FPSCR_VXIDI;
|
640 |
goto update_arith;
|
641 |
case POWERPC_EXCP_FP_VXZDZ:
|
642 |
/* Division of zero by zero */
|
643 |
env->fpscr |= 1 << FPSCR_VXZDZ;
|
644 |
goto update_arith;
|
645 |
case POWERPC_EXCP_FP_VXIMZ:
|
646 |
/* Multiplication of zero by infinity */
|
647 |
env->fpscr |= 1 << FPSCR_VXIMZ;
|
648 |
goto update_arith;
|
649 |
case POWERPC_EXCP_FP_VXVC:
|
650 |
/* Ordered comparison of NaN */
|
651 |
env->fpscr |= 1 << FPSCR_VXVC;
|
652 |
env->fpscr &= ~(0xF << FPSCR_FPCC);
|
653 |
env->fpscr |= 0x11 << FPSCR_FPCC;
|
654 |
/* We must update the target FPR before raising the exception */
|
655 |
if (ve != 0) { |
656 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
657 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_VXVC; |
658 |
/* Update the floating-point enabled exception summary */
|
659 |
env->fpscr |= 1 << FPSCR_FEX;
|
660 |
/* Exception is differed */
|
661 |
ve = 0;
|
662 |
} |
663 |
break;
|
664 |
case POWERPC_EXCP_FP_VXSQRT:
|
665 |
/* Square root of a negative number */
|
666 |
env->fpscr |= 1 << FPSCR_VXSQRT;
|
667 |
update_arith:
|
668 |
env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI)); |
669 |
if (ve == 0) { |
670 |
/* Set the result to quiet NaN */
|
671 |
ret = 0xFFF8000000000000ULL;
|
672 |
env->fpscr &= ~(0xF << FPSCR_FPCC);
|
673 |
env->fpscr |= 0x11 << FPSCR_FPCC;
|
674 |
} |
675 |
break;
|
676 |
case POWERPC_EXCP_FP_VXCVI:
|
677 |
/* Invalid conversion */
|
678 |
env->fpscr |= 1 << FPSCR_VXCVI;
|
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 |
} |
688 |
/* Update the floating-point invalid operation summary */
|
689 |
env->fpscr |= 1 << FPSCR_VX;
|
690 |
/* Update the floating-point exception summary */
|
691 |
env->fpscr |= 1 << FPSCR_FX;
|
692 |
if (ve != 0) { |
693 |
/* Update the floating-point enabled exception summary */
|
694 |
env->fpscr |= 1 << FPSCR_FEX;
|
695 |
if (msr_fe0 != 0 || msr_fe1 != 0) |
696 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_FP | op); |
697 |
} |
698 |
return ret;
|
699 |
} |
700 |
|
701 |
static always_inline void float_zero_divide_excp (void) |
702 |
{ |
703 |
env->fpscr |= 1 << FPSCR_ZX;
|
704 |
env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI)); |
705 |
/* Update the floating-point exception summary */
|
706 |
env->fpscr |= 1 << FPSCR_FX;
|
707 |
if (fpscr_ze != 0) { |
708 |
/* Update the floating-point enabled exception summary */
|
709 |
env->fpscr |= 1 << FPSCR_FEX;
|
710 |
if (msr_fe0 != 0 || msr_fe1 != 0) { |
711 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, |
712 |
POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX); |
713 |
} |
714 |
} |
715 |
} |
716 |
|
717 |
static always_inline void float_overflow_excp (void) |
718 |
{ |
719 |
env->fpscr |= 1 << FPSCR_OX;
|
720 |
/* Update the floating-point exception summary */
|
721 |
env->fpscr |= 1 << FPSCR_FX;
|
722 |
if (fpscr_oe != 0) { |
723 |
/* XXX: should adjust the result */
|
724 |
/* Update the floating-point enabled exception summary */
|
725 |
env->fpscr |= 1 << FPSCR_FEX;
|
726 |
/* We must update the target FPR before raising the exception */
|
727 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
728 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX; |
729 |
} else {
|
730 |
env->fpscr |= 1 << FPSCR_XX;
|
731 |
env->fpscr |= 1 << FPSCR_FI;
|
732 |
} |
733 |
} |
734 |
|
735 |
static always_inline void float_underflow_excp (void) |
736 |
{ |
737 |
env->fpscr |= 1 << FPSCR_UX;
|
738 |
/* Update the floating-point exception summary */
|
739 |
env->fpscr |= 1 << FPSCR_FX;
|
740 |
if (fpscr_ue != 0) { |
741 |
/* XXX: should adjust the result */
|
742 |
/* Update the floating-point enabled exception summary */
|
743 |
env->fpscr |= 1 << FPSCR_FEX;
|
744 |
/* We must update the target FPR before raising the exception */
|
745 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
746 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX; |
747 |
} |
748 |
} |
749 |
|
750 |
static always_inline void float_inexact_excp (void) |
751 |
{ |
752 |
env->fpscr |= 1 << FPSCR_XX;
|
753 |
/* Update the floating-point exception summary */
|
754 |
env->fpscr |= 1 << FPSCR_FX;
|
755 |
if (fpscr_xe != 0) { |
756 |
/* Update the floating-point enabled exception summary */
|
757 |
env->fpscr |= 1 << FPSCR_FEX;
|
758 |
/* We must update the target FPR before raising the exception */
|
759 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
760 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX; |
761 |
} |
762 |
} |
763 |
|
764 |
static always_inline void fpscr_set_rounding_mode (void) |
765 |
{ |
766 |
int rnd_type;
|
767 |
|
768 |
/* Set rounding mode */
|
769 |
switch (fpscr_rn) {
|
770 |
case 0: |
771 |
/* Best approximation (round to nearest) */
|
772 |
rnd_type = float_round_nearest_even; |
773 |
break;
|
774 |
case 1: |
775 |
/* Smaller magnitude (round toward zero) */
|
776 |
rnd_type = float_round_to_zero; |
777 |
break;
|
778 |
case 2: |
779 |
/* Round toward +infinite */
|
780 |
rnd_type = float_round_up; |
781 |
break;
|
782 |
default:
|
783 |
case 3: |
784 |
/* Round toward -infinite */
|
785 |
rnd_type = float_round_down; |
786 |
break;
|
787 |
} |
788 |
set_float_rounding_mode(rnd_type, &env->fp_status); |
789 |
} |
790 |
|
791 |
void helper_fpscr_clrbit (uint32_t bit)
|
792 |
{ |
793 |
int prev;
|
794 |
|
795 |
prev = (env->fpscr >> bit) & 1;
|
796 |
env->fpscr &= ~(1 << bit);
|
797 |
if (prev == 1) { |
798 |
switch (bit) {
|
799 |
case FPSCR_RN1:
|
800 |
case FPSCR_RN:
|
801 |
fpscr_set_rounding_mode(); |
802 |
break;
|
803 |
default:
|
804 |
break;
|
805 |
} |
806 |
} |
807 |
} |
808 |
|
809 |
void helper_fpscr_setbit (uint32_t bit)
|
810 |
{ |
811 |
int prev;
|
812 |
|
813 |
prev = (env->fpscr >> bit) & 1;
|
814 |
env->fpscr |= 1 << bit;
|
815 |
if (prev == 0) { |
816 |
switch (bit) {
|
817 |
case FPSCR_VX:
|
818 |
env->fpscr |= 1 << FPSCR_FX;
|
819 |
if (fpscr_ve)
|
820 |
goto raise_ve;
|
821 |
case FPSCR_OX:
|
822 |
env->fpscr |= 1 << FPSCR_FX;
|
823 |
if (fpscr_oe)
|
824 |
goto raise_oe;
|
825 |
break;
|
826 |
case FPSCR_UX:
|
827 |
env->fpscr |= 1 << FPSCR_FX;
|
828 |
if (fpscr_ue)
|
829 |
goto raise_ue;
|
830 |
break;
|
831 |
case FPSCR_ZX:
|
832 |
env->fpscr |= 1 << FPSCR_FX;
|
833 |
if (fpscr_ze)
|
834 |
goto raise_ze;
|
835 |
break;
|
836 |
case FPSCR_XX:
|
837 |
env->fpscr |= 1 << FPSCR_FX;
|
838 |
if (fpscr_xe)
|
839 |
goto raise_xe;
|
840 |
break;
|
841 |
case FPSCR_VXSNAN:
|
842 |
case FPSCR_VXISI:
|
843 |
case FPSCR_VXIDI:
|
844 |
case FPSCR_VXZDZ:
|
845 |
case FPSCR_VXIMZ:
|
846 |
case FPSCR_VXVC:
|
847 |
case FPSCR_VXSOFT:
|
848 |
case FPSCR_VXSQRT:
|
849 |
case FPSCR_VXCVI:
|
850 |
env->fpscr |= 1 << FPSCR_VX;
|
851 |
env->fpscr |= 1 << FPSCR_FX;
|
852 |
if (fpscr_ve != 0) |
853 |
goto raise_ve;
|
854 |
break;
|
855 |
case FPSCR_VE:
|
856 |
if (fpscr_vx != 0) { |
857 |
raise_ve:
|
858 |
env->error_code = POWERPC_EXCP_FP; |
859 |
if (fpscr_vxsnan)
|
860 |
env->error_code |= POWERPC_EXCP_FP_VXSNAN; |
861 |
if (fpscr_vxisi)
|
862 |
env->error_code |= POWERPC_EXCP_FP_VXISI; |
863 |
if (fpscr_vxidi)
|
864 |
env->error_code |= POWERPC_EXCP_FP_VXIDI; |
865 |
if (fpscr_vxzdz)
|
866 |
env->error_code |= POWERPC_EXCP_FP_VXZDZ; |
867 |
if (fpscr_vximz)
|
868 |
env->error_code |= POWERPC_EXCP_FP_VXIMZ; |
869 |
if (fpscr_vxvc)
|
870 |
env->error_code |= POWERPC_EXCP_FP_VXVC; |
871 |
if (fpscr_vxsoft)
|
872 |
env->error_code |= POWERPC_EXCP_FP_VXSOFT; |
873 |
if (fpscr_vxsqrt)
|
874 |
env->error_code |= POWERPC_EXCP_FP_VXSQRT; |
875 |
if (fpscr_vxcvi)
|
876 |
env->error_code |= POWERPC_EXCP_FP_VXCVI; |
877 |
goto raise_excp;
|
878 |
} |
879 |
break;
|
880 |
case FPSCR_OE:
|
881 |
if (fpscr_ox != 0) { |
882 |
raise_oe:
|
883 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX; |
884 |
goto raise_excp;
|
885 |
} |
886 |
break;
|
887 |
case FPSCR_UE:
|
888 |
if (fpscr_ux != 0) { |
889 |
raise_ue:
|
890 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX; |
891 |
goto raise_excp;
|
892 |
} |
893 |
break;
|
894 |
case FPSCR_ZE:
|
895 |
if (fpscr_zx != 0) { |
896 |
raise_ze:
|
897 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX; |
898 |
goto raise_excp;
|
899 |
} |
900 |
break;
|
901 |
case FPSCR_XE:
|
902 |
if (fpscr_xx != 0) { |
903 |
raise_xe:
|
904 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX; |
905 |
goto raise_excp;
|
906 |
} |
907 |
break;
|
908 |
case FPSCR_RN1:
|
909 |
case FPSCR_RN:
|
910 |
fpscr_set_rounding_mode(); |
911 |
break;
|
912 |
default:
|
913 |
break;
|
914 |
raise_excp:
|
915 |
/* Update the floating-point enabled exception summary */
|
916 |
env->fpscr |= 1 << FPSCR_FEX;
|
917 |
/* We have to update Rc1 before raising the exception */
|
918 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
919 |
break;
|
920 |
} |
921 |
} |
922 |
} |
923 |
|
924 |
void helper_store_fpscr (uint64_t arg, uint32_t mask)
|
925 |
{ |
926 |
/*
|
927 |
* We use only the 32 LSB of the incoming fpr
|
928 |
*/
|
929 |
uint32_t prev, new; |
930 |
int i;
|
931 |
|
932 |
prev = env->fpscr; |
933 |
new = (uint32_t)arg; |
934 |
new &= ~0x60000000;
|
935 |
new |= prev & 0x60000000;
|
936 |
for (i = 0; i < 8; i++) { |
937 |
if (mask & (1 << i)) { |
938 |
env->fpscr &= ~(0xF << (4 * i)); |
939 |
env->fpscr |= new & (0xF << (4 * i)); |
940 |
} |
941 |
} |
942 |
/* Update VX and FEX */
|
943 |
if (fpscr_ix != 0) |
944 |
env->fpscr |= 1 << FPSCR_VX;
|
945 |
else
|
946 |
env->fpscr &= ~(1 << FPSCR_VX);
|
947 |
if ((fpscr_ex & fpscr_eex) != 0) { |
948 |
env->fpscr |= 1 << FPSCR_FEX;
|
949 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
950 |
/* XXX: we should compute it properly */
|
951 |
env->error_code = POWERPC_EXCP_FP; |
952 |
} |
953 |
else
|
954 |
env->fpscr &= ~(1 << FPSCR_FEX);
|
955 |
fpscr_set_rounding_mode(); |
956 |
} |
957 |
|
958 |
void helper_float_check_status (void) |
959 |
{ |
960 |
#ifdef CONFIG_SOFTFLOAT
|
961 |
if (env->exception_index == POWERPC_EXCP_PROGRAM &&
|
962 |
(env->error_code & POWERPC_EXCP_FP)) { |
963 |
/* Differred floating-point exception after target FPR update */
|
964 |
if (msr_fe0 != 0 || msr_fe1 != 0) |
965 |
helper_raise_exception_err(env->exception_index, env->error_code); |
966 |
} else {
|
967 |
int status = get_float_exception_flags(&env->fp_status);
|
968 |
if (status & float_flag_divbyzero) {
|
969 |
float_zero_divide_excp(); |
970 |
} else if (status & float_flag_overflow) { |
971 |
float_overflow_excp(); |
972 |
} else if (status & float_flag_underflow) { |
973 |
float_underflow_excp(); |
974 |
} else if (status & float_flag_inexact) { |
975 |
float_inexact_excp(); |
976 |
} |
977 |
} |
978 |
#else
|
979 |
if (env->exception_index == POWERPC_EXCP_PROGRAM &&
|
980 |
(env->error_code & POWERPC_EXCP_FP)) { |
981 |
/* Differred floating-point exception after target FPR update */
|
982 |
if (msr_fe0 != 0 || msr_fe1 != 0) |
983 |
helper_raise_exception_err(env->exception_index, env->error_code); |
984 |
} |
985 |
#endif
|
986 |
} |
987 |
|
988 |
#ifdef CONFIG_SOFTFLOAT
|
989 |
void helper_reset_fpstatus (void) |
990 |
{ |
991 |
set_float_exception_flags(0, &env->fp_status);
|
992 |
} |
993 |
#endif
|
994 |
|
995 |
/* fadd - fadd. */
|
996 |
uint64_t helper_fadd (uint64_t arg1, uint64_t arg2) |
997 |
{ |
998 |
CPU_DoubleU farg1, farg2; |
999 |
|
1000 |
farg1.ll = arg1; |
1001 |
farg2.ll = arg2; |
1002 |
#if USE_PRECISE_EMULATION
|
1003 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
1004 |
float64_is_signaling_nan(farg2.d))) { |
1005 |
/* sNaN addition */
|
1006 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1007 |
} else if (unlikely(float64_is_infinity(farg1.d) && float64_is_infinity(farg2.d) && |
1008 |
float64_is_neg(farg1.d) != float64_is_neg(farg2.d))) { |
1009 |
/* Magnitude subtraction of infinities */
|
1010 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
1011 |
} else {
|
1012 |
farg1.d = float64_add(farg1.d, farg2.d, &env->fp_status); |
1013 |
} |
1014 |
#else
|
1015 |
farg1.d = float64_add(farg1.d, farg2.d, &env->fp_status); |
1016 |
#endif
|
1017 |
return farg1.ll;
|
1018 |
} |
1019 |
|
1020 |
/* fsub - fsub. */
|
1021 |
uint64_t helper_fsub (uint64_t arg1, uint64_t arg2) |
1022 |
{ |
1023 |
CPU_DoubleU farg1, farg2; |
1024 |
|
1025 |
farg1.ll = arg1; |
1026 |
farg2.ll = arg2; |
1027 |
#if USE_PRECISE_EMULATION
|
1028 |
{ |
1029 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
1030 |
float64_is_signaling_nan(farg2.d))) { |
1031 |
/* sNaN subtraction */
|
1032 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1033 |
} else if (unlikely(float64_is_infinity(farg1.d) && float64_is_infinity(farg2.d) && |
1034 |
float64_is_neg(farg1.d) == float64_is_neg(farg2.d))) { |
1035 |
/* Magnitude subtraction of infinities */
|
1036 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
1037 |
} else {
|
1038 |
farg1.d = float64_sub(farg1.d, farg2.d, &env->fp_status); |
1039 |
} |
1040 |
} |
1041 |
#else
|
1042 |
farg1.d = float64_sub(farg1.d, farg2.d, &env->fp_status); |
1043 |
#endif
|
1044 |
return farg1.ll;
|
1045 |
} |
1046 |
|
1047 |
/* fmul - fmul. */
|
1048 |
uint64_t helper_fmul (uint64_t arg1, uint64_t arg2) |
1049 |
{ |
1050 |
CPU_DoubleU farg1, farg2; |
1051 |
|
1052 |
farg1.ll = arg1; |
1053 |
farg2.ll = arg2; |
1054 |
#if USE_PRECISE_EMULATION
|
1055 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
1056 |
float64_is_signaling_nan(farg2.d))) { |
1057 |
/* sNaN multiplication */
|
1058 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1059 |
} else if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || |
1060 |
(float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) { |
1061 |
/* Multiplication of zero by infinity */
|
1062 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ); |
1063 |
} else {
|
1064 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
1065 |
} |
1066 |
#else
|
1067 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
1068 |
#endif
|
1069 |
return farg1.ll;
|
1070 |
} |
1071 |
|
1072 |
/* fdiv - fdiv. */
|
1073 |
uint64_t helper_fdiv (uint64_t arg1, uint64_t arg2) |
1074 |
{ |
1075 |
CPU_DoubleU farg1, farg2; |
1076 |
|
1077 |
farg1.ll = arg1; |
1078 |
farg2.ll = arg2; |
1079 |
#if USE_PRECISE_EMULATION
|
1080 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
1081 |
float64_is_signaling_nan(farg2.d))) { |
1082 |
/* sNaN division */
|
1083 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1084 |
} else if (unlikely(float64_is_infinity(farg1.d) && float64_is_infinity(farg2.d))) { |
1085 |
/* Division of infinity by infinity */
|
1086 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIDI); |
1087 |
} else if (unlikely(float64_is_zero(farg1.d) && float64_is_zero(farg2.d))) { |
1088 |
/* Division of zero by zero */
|
1089 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXZDZ); |
1090 |
} else {
|
1091 |
farg1.d = float64_div(farg1.d, farg2.d, &env->fp_status); |
1092 |
} |
1093 |
#else
|
1094 |
farg1.d = float64_div(farg1.d, farg2.d, &env->fp_status); |
1095 |
#endif
|
1096 |
return farg1.ll;
|
1097 |
} |
1098 |
|
1099 |
/* fabs */
|
1100 |
uint64_t helper_fabs (uint64_t arg) |
1101 |
{ |
1102 |
CPU_DoubleU farg; |
1103 |
|
1104 |
farg.ll = arg; |
1105 |
farg.d = float64_abs(farg.d); |
1106 |
return farg.ll;
|
1107 |
} |
1108 |
|
1109 |
/* fnabs */
|
1110 |
uint64_t helper_fnabs (uint64_t arg) |
1111 |
{ |
1112 |
CPU_DoubleU farg; |
1113 |
|
1114 |
farg.ll = arg; |
1115 |
farg.d = float64_abs(farg.d); |
1116 |
farg.d = float64_chs(farg.d); |
1117 |
return farg.ll;
|
1118 |
} |
1119 |
|
1120 |
/* fneg */
|
1121 |
uint64_t helper_fneg (uint64_t arg) |
1122 |
{ |
1123 |
CPU_DoubleU farg; |
1124 |
|
1125 |
farg.ll = arg; |
1126 |
farg.d = float64_chs(farg.d); |
1127 |
return farg.ll;
|
1128 |
} |
1129 |
|
1130 |
/* fctiw - fctiw. */
|
1131 |
uint64_t helper_fctiw (uint64_t arg) |
1132 |
{ |
1133 |
CPU_DoubleU farg; |
1134 |
farg.ll = arg; |
1135 |
|
1136 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1137 |
/* sNaN conversion */
|
1138 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
1139 |
} else if (unlikely(float64_is_nan(farg.d) || float64_is_infinity(farg.d))) { |
1140 |
/* qNan / infinity conversion */
|
1141 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1142 |
} else {
|
1143 |
farg.ll = float64_to_int32(farg.d, &env->fp_status); |
1144 |
#if USE_PRECISE_EMULATION
|
1145 |
/* XXX: higher bits are not supposed to be significant.
|
1146 |
* to make tests easier, return the same as a real PowerPC 750
|
1147 |
*/
|
1148 |
farg.ll |= 0xFFF80000ULL << 32; |
1149 |
#endif
|
1150 |
} |
1151 |
return farg.ll;
|
1152 |
} |
1153 |
|
1154 |
/* fctiwz - fctiwz. */
|
1155 |
uint64_t helper_fctiwz (uint64_t arg) |
1156 |
{ |
1157 |
CPU_DoubleU farg; |
1158 |
farg.ll = arg; |
1159 |
|
1160 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1161 |
/* sNaN conversion */
|
1162 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
1163 |
} else if (unlikely(float64_is_nan(farg.d) || float64_is_infinity(farg.d))) { |
1164 |
/* qNan / infinity conversion */
|
1165 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1166 |
} else {
|
1167 |
farg.ll = float64_to_int32_round_to_zero(farg.d, &env->fp_status); |
1168 |
#if USE_PRECISE_EMULATION
|
1169 |
/* XXX: higher bits are not supposed to be significant.
|
1170 |
* to make tests easier, return the same as a real PowerPC 750
|
1171 |
*/
|
1172 |
farg.ll |= 0xFFF80000ULL << 32; |
1173 |
#endif
|
1174 |
} |
1175 |
return farg.ll;
|
1176 |
} |
1177 |
|
1178 |
#if defined(TARGET_PPC64)
|
1179 |
/* fcfid - fcfid. */
|
1180 |
uint64_t helper_fcfid (uint64_t arg) |
1181 |
{ |
1182 |
CPU_DoubleU farg; |
1183 |
farg.d = int64_to_float64(arg, &env->fp_status); |
1184 |
return farg.ll;
|
1185 |
} |
1186 |
|
1187 |
/* fctid - fctid. */
|
1188 |
uint64_t helper_fctid (uint64_t arg) |
1189 |
{ |
1190 |
CPU_DoubleU farg; |
1191 |
farg.ll = arg; |
1192 |
|
1193 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1194 |
/* sNaN conversion */
|
1195 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
1196 |
} else if (unlikely(float64_is_nan(farg.d) || float64_is_infinity(farg.d))) { |
1197 |
/* qNan / infinity conversion */
|
1198 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1199 |
} else {
|
1200 |
farg.ll = float64_to_int64(farg.d, &env->fp_status); |
1201 |
} |
1202 |
return farg.ll;
|
1203 |
} |
1204 |
|
1205 |
/* fctidz - fctidz. */
|
1206 |
uint64_t helper_fctidz (uint64_t arg) |
1207 |
{ |
1208 |
CPU_DoubleU farg; |
1209 |
farg.ll = arg; |
1210 |
|
1211 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1212 |
/* sNaN conversion */
|
1213 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
1214 |
} else if (unlikely(float64_is_nan(farg.d) || float64_is_infinity(farg.d))) { |
1215 |
/* qNan / infinity conversion */
|
1216 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1217 |
} else {
|
1218 |
farg.ll = float64_to_int64_round_to_zero(farg.d, &env->fp_status); |
1219 |
} |
1220 |
return farg.ll;
|
1221 |
} |
1222 |
|
1223 |
#endif
|
1224 |
|
1225 |
static always_inline uint64_t do_fri (uint64_t arg, int rounding_mode) |
1226 |
{ |
1227 |
CPU_DoubleU farg; |
1228 |
farg.ll = arg; |
1229 |
|
1230 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1231 |
/* sNaN round */
|
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 round */
|
1235 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1236 |
} else {
|
1237 |
set_float_rounding_mode(rounding_mode, &env->fp_status); |
1238 |
farg.ll = float64_round_to_int(farg.d, &env->fp_status); |
1239 |
/* Restore rounding mode from FPSCR */
|
1240 |
fpscr_set_rounding_mode(); |
1241 |
} |
1242 |
return farg.ll;
|
1243 |
} |
1244 |
|
1245 |
uint64_t helper_frin (uint64_t arg) |
1246 |
{ |
1247 |
return do_fri(arg, float_round_nearest_even);
|
1248 |
} |
1249 |
|
1250 |
uint64_t helper_friz (uint64_t arg) |
1251 |
{ |
1252 |
return do_fri(arg, float_round_to_zero);
|
1253 |
} |
1254 |
|
1255 |
uint64_t helper_frip (uint64_t arg) |
1256 |
{ |
1257 |
return do_fri(arg, float_round_up);
|
1258 |
} |
1259 |
|
1260 |
uint64_t helper_frim (uint64_t arg) |
1261 |
{ |
1262 |
return do_fri(arg, float_round_down);
|
1263 |
} |
1264 |
|
1265 |
/* fmadd - fmadd. */
|
1266 |
uint64_t helper_fmadd (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
1267 |
{ |
1268 |
CPU_DoubleU farg1, farg2, farg3; |
1269 |
|
1270 |
farg1.ll = arg1; |
1271 |
farg2.ll = arg2; |
1272 |
farg3.ll = arg3; |
1273 |
#if USE_PRECISE_EMULATION
|
1274 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
1275 |
float64_is_signaling_nan(farg2.d) || |
1276 |
float64_is_signaling_nan(farg3.d))) { |
1277 |
/* sNaN operation */
|
1278 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1279 |
} else if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || |
1280 |
(float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) { |
1281 |
/* Multiplication of zero by infinity */
|
1282 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ); |
1283 |
} else {
|
1284 |
#ifdef FLOAT128
|
1285 |
/* This is the way the PowerPC specification defines it */
|
1286 |
float128 ft0_128, ft1_128; |
1287 |
|
1288 |
ft0_128 = float64_to_float128(farg1.d, &env->fp_status); |
1289 |
ft1_128 = float64_to_float128(farg2.d, &env->fp_status); |
1290 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
1291 |
if (unlikely(float128_is_infinity(ft0_128) && float64_is_infinity(farg3.d) &&
|
1292 |
float128_is_neg(ft0_128) != float64_is_neg(farg3.d))) { |
1293 |
/* Magnitude subtraction of infinities */
|
1294 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
1295 |
} else {
|
1296 |
ft1_128 = float64_to_float128(farg3.d, &env->fp_status); |
1297 |
ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status); |
1298 |
farg1.d = float128_to_float64(ft0_128, &env->fp_status); |
1299 |
} |
1300 |
#else
|
1301 |
/* This is OK on x86 hosts */
|
1302 |
farg1.d = (farg1.d * farg2.d) + farg3.d; |
1303 |
#endif
|
1304 |
} |
1305 |
#else
|
1306 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
1307 |
farg1.d = float64_add(farg1.d, farg3.d, &env->fp_status); |
1308 |
#endif
|
1309 |
return farg1.ll;
|
1310 |
} |
1311 |
|
1312 |
/* fmsub - fmsub. */
|
1313 |
uint64_t helper_fmsub (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
1314 |
{ |
1315 |
CPU_DoubleU farg1, farg2, farg3; |
1316 |
|
1317 |
farg1.ll = arg1; |
1318 |
farg2.ll = arg2; |
1319 |
farg3.ll = arg3; |
1320 |
#if USE_PRECISE_EMULATION
|
1321 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
1322 |
float64_is_signaling_nan(farg2.d) || |
1323 |
float64_is_signaling_nan(farg3.d))) { |
1324 |
/* sNaN operation */
|
1325 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1326 |
} else if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || |
1327 |
(float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) { |
1328 |
/* Multiplication of zero by infinity */
|
1329 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ); |
1330 |
} else {
|
1331 |
#ifdef FLOAT128
|
1332 |
/* This is the way the PowerPC specification defines it */
|
1333 |
float128 ft0_128, ft1_128; |
1334 |
|
1335 |
ft0_128 = float64_to_float128(farg1.d, &env->fp_status); |
1336 |
ft1_128 = float64_to_float128(farg2.d, &env->fp_status); |
1337 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
1338 |
if (unlikely(float128_is_infinity(ft0_128) && float64_is_infinity(farg3.d) &&
|
1339 |
float128_is_neg(ft0_128) == float64_is_neg(farg3.d))) { |
1340 |
/* Magnitude subtraction of infinities */
|
1341 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
1342 |
} else {
|
1343 |
ft1_128 = float64_to_float128(farg3.d, &env->fp_status); |
1344 |
ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status); |
1345 |
farg1.d = float128_to_float64(ft0_128, &env->fp_status); |
1346 |
} |
1347 |
#else
|
1348 |
/* This is OK on x86 hosts */
|
1349 |
farg1.d = (farg1.d * farg2.d) - farg3.d; |
1350 |
#endif
|
1351 |
} |
1352 |
#else
|
1353 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
1354 |
farg1.d = float64_sub(farg1.d, farg3.d, &env->fp_status); |
1355 |
#endif
|
1356 |
return farg1.ll;
|
1357 |
} |
1358 |
|
1359 |
/* fnmadd - fnmadd. */
|
1360 |
uint64_t helper_fnmadd (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
1361 |
{ |
1362 |
CPU_DoubleU farg1, farg2, farg3; |
1363 |
|
1364 |
farg1.ll = arg1; |
1365 |
farg2.ll = arg2; |
1366 |
farg3.ll = arg3; |
1367 |
|
1368 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
1369 |
float64_is_signaling_nan(farg2.d) || |
1370 |
float64_is_signaling_nan(farg3.d))) { |
1371 |
/* sNaN operation */
|
1372 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1373 |
} else if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || |
1374 |
(float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) { |
1375 |
/* Multiplication of zero by infinity */
|
1376 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ); |
1377 |
} else {
|
1378 |
#if USE_PRECISE_EMULATION
|
1379 |
#ifdef FLOAT128
|
1380 |
/* This is the way the PowerPC specification defines it */
|
1381 |
float128 ft0_128, ft1_128; |
1382 |
|
1383 |
ft0_128 = float64_to_float128(farg1.d, &env->fp_status); |
1384 |
ft1_128 = float64_to_float128(farg2.d, &env->fp_status); |
1385 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
1386 |
if (unlikely(float128_is_infinity(ft0_128) && float64_is_infinity(farg3.d) &&
|
1387 |
float128_is_neg(ft0_128) != float64_is_neg(farg3.d))) { |
1388 |
/* Magnitude subtraction of infinities */
|
1389 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
1390 |
} else {
|
1391 |
ft1_128 = float64_to_float128(farg3.d, &env->fp_status); |
1392 |
ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status); |
1393 |
farg1.d = float128_to_float64(ft0_128, &env->fp_status); |
1394 |
} |
1395 |
#else
|
1396 |
/* This is OK on x86 hosts */
|
1397 |
farg1.d = (farg1.d * farg2.d) + farg3.d; |
1398 |
#endif
|
1399 |
#else
|
1400 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
1401 |
farg1.d = float64_add(farg1.d, farg3.d, &env->fp_status); |
1402 |
#endif
|
1403 |
if (likely(!float64_is_nan(farg1.d)))
|
1404 |
farg1.d = float64_chs(farg1.d); |
1405 |
} |
1406 |
return farg1.ll;
|
1407 |
} |
1408 |
|
1409 |
/* fnmsub - fnmsub. */
|
1410 |
uint64_t helper_fnmsub (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
1411 |
{ |
1412 |
CPU_DoubleU farg1, farg2, farg3; |
1413 |
|
1414 |
farg1.ll = arg1; |
1415 |
farg2.ll = arg2; |
1416 |
farg3.ll = arg3; |
1417 |
|
1418 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
1419 |
float64_is_signaling_nan(farg2.d) || |
1420 |
float64_is_signaling_nan(farg3.d))) { |
1421 |
/* sNaN operation */
|
1422 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1423 |
} else if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || |
1424 |
(float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) { |
1425 |
/* Multiplication of zero by infinity */
|
1426 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ); |
1427 |
} else {
|
1428 |
#if USE_PRECISE_EMULATION
|
1429 |
#ifdef FLOAT128
|
1430 |
/* This is the way the PowerPC specification defines it */
|
1431 |
float128 ft0_128, ft1_128; |
1432 |
|
1433 |
ft0_128 = float64_to_float128(farg1.d, &env->fp_status); |
1434 |
ft1_128 = float64_to_float128(farg2.d, &env->fp_status); |
1435 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
1436 |
if (unlikely(float128_is_infinity(ft0_128) && float64_is_infinity(farg3.d) &&
|
1437 |
float128_is_neg(ft0_128) == float64_is_neg(farg3.d))) { |
1438 |
/* Magnitude subtraction of infinities */
|
1439 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
1440 |
} else {
|
1441 |
ft1_128 = float64_to_float128(farg3.d, &env->fp_status); |
1442 |
ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status); |
1443 |
farg1.d = float128_to_float64(ft0_128, &env->fp_status); |
1444 |
} |
1445 |
#else
|
1446 |
/* This is OK on x86 hosts */
|
1447 |
farg1.d = (farg1.d * farg2.d) - farg3.d; |
1448 |
#endif
|
1449 |
#else
|
1450 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
1451 |
farg1.d = float64_sub(farg1.d, farg3.d, &env->fp_status); |
1452 |
#endif
|
1453 |
if (likely(!float64_is_nan(farg1.d)))
|
1454 |
farg1.d = float64_chs(farg1.d); |
1455 |
} |
1456 |
return farg1.ll;
|
1457 |
} |
1458 |
|
1459 |
/* frsp - frsp. */
|
1460 |
uint64_t helper_frsp (uint64_t arg) |
1461 |
{ |
1462 |
CPU_DoubleU farg; |
1463 |
float32 f32; |
1464 |
farg.ll = arg; |
1465 |
|
1466 |
#if USE_PRECISE_EMULATION
|
1467 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1468 |
/* sNaN square root */
|
1469 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1470 |
} else {
|
1471 |
f32 = float64_to_float32(farg.d, &env->fp_status); |
1472 |
farg.d = float32_to_float64(f32, &env->fp_status); |
1473 |
} |
1474 |
#else
|
1475 |
f32 = float64_to_float32(farg.d, &env->fp_status); |
1476 |
farg.d = float32_to_float64(f32, &env->fp_status); |
1477 |
#endif
|
1478 |
return farg.ll;
|
1479 |
} |
1480 |
|
1481 |
/* fsqrt - fsqrt. */
|
1482 |
uint64_t helper_fsqrt (uint64_t arg) |
1483 |
{ |
1484 |
CPU_DoubleU farg; |
1485 |
farg.ll = arg; |
1486 |
|
1487 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1488 |
/* sNaN square root */
|
1489 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1490 |
} else if (unlikely(float64_is_neg(farg.d) && !float64_is_zero(farg.d))) { |
1491 |
/* Square root of a negative nonzero number */
|
1492 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSQRT); |
1493 |
} else {
|
1494 |
farg.d = float64_sqrt(farg.d, &env->fp_status); |
1495 |
} |
1496 |
return farg.ll;
|
1497 |
} |
1498 |
|
1499 |
/* fre - fre. */
|
1500 |
uint64_t helper_fre (uint64_t arg) |
1501 |
{ |
1502 |
CPU_DoubleU fone, farg; |
1503 |
fone.ll = 0x3FF0000000000000ULL; /* 1.0 */ |
1504 |
farg.ll = arg; |
1505 |
|
1506 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1507 |
/* sNaN reciprocal */
|
1508 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1509 |
} else {
|
1510 |
farg.d = float64_div(fone.d, farg.d, &env->fp_status); |
1511 |
} |
1512 |
return farg.d;
|
1513 |
} |
1514 |
|
1515 |
/* fres - fres. */
|
1516 |
uint64_t helper_fres (uint64_t arg) |
1517 |
{ |
1518 |
CPU_DoubleU fone, farg; |
1519 |
float32 f32; |
1520 |
fone.ll = 0x3FF0000000000000ULL; /* 1.0 */ |
1521 |
farg.ll = arg; |
1522 |
|
1523 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1524 |
/* sNaN reciprocal */
|
1525 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1526 |
} else {
|
1527 |
farg.d = float64_div(fone.d, farg.d, &env->fp_status); |
1528 |
f32 = float64_to_float32(farg.d, &env->fp_status); |
1529 |
farg.d = float32_to_float64(f32, &env->fp_status); |
1530 |
} |
1531 |
return farg.ll;
|
1532 |
} |
1533 |
|
1534 |
/* frsqrte - frsqrte. */
|
1535 |
uint64_t helper_frsqrte (uint64_t arg) |
1536 |
{ |
1537 |
CPU_DoubleU fone, farg; |
1538 |
float32 f32; |
1539 |
fone.ll = 0x3FF0000000000000ULL; /* 1.0 */ |
1540 |
farg.ll = arg; |
1541 |
|
1542 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1543 |
/* sNaN reciprocal square root */
|
1544 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1545 |
} else if (unlikely(float64_is_neg(farg.d) && !float64_is_zero(farg.d))) { |
1546 |
/* Reciprocal square root of a negative nonzero number */
|
1547 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSQRT); |
1548 |
} else {
|
1549 |
farg.d = float64_sqrt(farg.d, &env->fp_status); |
1550 |
farg.d = float64_div(fone.d, farg.d, &env->fp_status); |
1551 |
f32 = float64_to_float32(farg.d, &env->fp_status); |
1552 |
farg.d = float32_to_float64(f32, &env->fp_status); |
1553 |
} |
1554 |
return farg.ll;
|
1555 |
} |
1556 |
|
1557 |
/* fsel - fsel. */
|
1558 |
uint64_t helper_fsel (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
1559 |
{ |
1560 |
CPU_DoubleU farg1; |
1561 |
|
1562 |
farg1.ll = arg1; |
1563 |
|
1564 |
if ((!float64_is_neg(farg1.d) || float64_is_zero(farg1.d)) && !float64_is_nan(farg1.d))
|
1565 |
return arg2;
|
1566 |
else
|
1567 |
return arg3;
|
1568 |
} |
1569 |
|
1570 |
void helper_fcmpu (uint64_t arg1, uint64_t arg2, uint32_t crfD)
|
1571 |
{ |
1572 |
CPU_DoubleU farg1, farg2; |
1573 |
uint32_t ret = 0;
|
1574 |
farg1.ll = arg1; |
1575 |
farg2.ll = arg2; |
1576 |
|
1577 |
if (unlikely(float64_is_nan(farg1.d) ||
|
1578 |
float64_is_nan(farg2.d))) { |
1579 |
ret = 0x01UL;
|
1580 |
} else if (float64_lt(farg1.d, farg2.d, &env->fp_status)) { |
1581 |
ret = 0x08UL;
|
1582 |
} else if (!float64_le(farg1.d, farg2.d, &env->fp_status)) { |
1583 |
ret = 0x04UL;
|
1584 |
} else {
|
1585 |
ret = 0x02UL;
|
1586 |
} |
1587 |
|
1588 |
env->fpscr &= ~(0x0F << FPSCR_FPRF);
|
1589 |
env->fpscr |= ret << FPSCR_FPRF; |
1590 |
env->crf[crfD] = ret; |
1591 |
if (unlikely(ret == 0x01UL |
1592 |
&& (float64_is_signaling_nan(farg1.d) || |
1593 |
float64_is_signaling_nan(farg2.d)))) { |
1594 |
/* sNaN comparison */
|
1595 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1596 |
} |
1597 |
} |
1598 |
|
1599 |
void helper_fcmpo (uint64_t arg1, uint64_t arg2, uint32_t crfD)
|
1600 |
{ |
1601 |
CPU_DoubleU farg1, farg2; |
1602 |
uint32_t ret = 0;
|
1603 |
farg1.ll = arg1; |
1604 |
farg2.ll = arg2; |
1605 |
|
1606 |
if (unlikely(float64_is_nan(farg1.d) ||
|
1607 |
float64_is_nan(farg2.d))) { |
1608 |
ret = 0x01UL;
|
1609 |
} else if (float64_lt(farg1.d, farg2.d, &env->fp_status)) { |
1610 |
ret = 0x08UL;
|
1611 |
} else if (!float64_le(farg1.d, farg2.d, &env->fp_status)) { |
1612 |
ret = 0x04UL;
|
1613 |
} else {
|
1614 |
ret = 0x02UL;
|
1615 |
} |
1616 |
|
1617 |
env->fpscr &= ~(0x0F << FPSCR_FPRF);
|
1618 |
env->fpscr |= ret << FPSCR_FPRF; |
1619 |
env->crf[crfD] = ret; |
1620 |
if (unlikely (ret == 0x01UL)) { |
1621 |
if (float64_is_signaling_nan(farg1.d) ||
|
1622 |
float64_is_signaling_nan(farg2.d)) { |
1623 |
/* sNaN comparison */
|
1624 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | |
1625 |
POWERPC_EXCP_FP_VXVC); |
1626 |
} else {
|
1627 |
/* qNaN comparison */
|
1628 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXVC); |
1629 |
} |
1630 |
} |
1631 |
} |
1632 |
|
1633 |
#if !defined (CONFIG_USER_ONLY)
|
1634 |
void helper_store_msr (target_ulong val)
|
1635 |
{ |
1636 |
val = hreg_store_msr(env, val, 0);
|
1637 |
if (val != 0) { |
1638 |
env->interrupt_request |= CPU_INTERRUPT_EXITTB; |
1639 |
helper_raise_exception(val); |
1640 |
} |
1641 |
} |
1642 |
|
1643 |
static always_inline void do_rfi (target_ulong nip, target_ulong msr, |
1644 |
target_ulong msrm, int keep_msrh)
|
1645 |
{ |
1646 |
#if defined(TARGET_PPC64)
|
1647 |
if (msr & (1ULL << MSR_SF)) { |
1648 |
nip = (uint64_t)nip; |
1649 |
msr &= (uint64_t)msrm; |
1650 |
} else {
|
1651 |
nip = (uint32_t)nip; |
1652 |
msr = (uint32_t)(msr & msrm); |
1653 |
if (keep_msrh)
|
1654 |
msr |= env->msr & ~((uint64_t)0xFFFFFFFF);
|
1655 |
} |
1656 |
#else
|
1657 |
nip = (uint32_t)nip; |
1658 |
msr &= (uint32_t)msrm; |
1659 |
#endif
|
1660 |
/* XXX: beware: this is false if VLE is supported */
|
1661 |
env->nip = nip & ~((target_ulong)0x00000003);
|
1662 |
hreg_store_msr(env, msr, 1);
|
1663 |
#if defined (DEBUG_OP)
|
1664 |
cpu_dump_rfi(env->nip, env->msr); |
1665 |
#endif
|
1666 |
/* No need to raise an exception here,
|
1667 |
* as rfi is always the last insn of a TB
|
1668 |
*/
|
1669 |
env->interrupt_request |= CPU_INTERRUPT_EXITTB; |
1670 |
} |
1671 |
|
1672 |
void helper_rfi (void) |
1673 |
{ |
1674 |
do_rfi(env->spr[SPR_SRR0], env->spr[SPR_SRR1], |
1675 |
~((target_ulong)0xFFFF0000), 1); |
1676 |
} |
1677 |
|
1678 |
#if defined(TARGET_PPC64)
|
1679 |
void helper_rfid (void) |
1680 |
{ |
1681 |
do_rfi(env->spr[SPR_SRR0], env->spr[SPR_SRR1], |
1682 |
~((target_ulong)0xFFFF0000), 0); |
1683 |
} |
1684 |
|
1685 |
void helper_hrfid (void) |
1686 |
{ |
1687 |
do_rfi(env->spr[SPR_HSRR0], env->spr[SPR_HSRR1], |
1688 |
~((target_ulong)0xFFFF0000), 0); |
1689 |
} |
1690 |
#endif
|
1691 |
#endif
|
1692 |
|
1693 |
void helper_tw (target_ulong arg1, target_ulong arg2, uint32_t flags)
|
1694 |
{ |
1695 |
if (!likely(!(((int32_t)arg1 < (int32_t)arg2 && (flags & 0x10)) || |
1696 |
((int32_t)arg1 > (int32_t)arg2 && (flags & 0x08)) ||
|
1697 |
((int32_t)arg1 == (int32_t)arg2 && (flags & 0x04)) ||
|
1698 |
((uint32_t)arg1 < (uint32_t)arg2 && (flags & 0x02)) ||
|
1699 |
((uint32_t)arg1 > (uint32_t)arg2 && (flags & 0x01))))) {
|
1700 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP); |
1701 |
} |
1702 |
} |
1703 |
|
1704 |
#if defined(TARGET_PPC64)
|
1705 |
void helper_td (target_ulong arg1, target_ulong arg2, uint32_t flags)
|
1706 |
{ |
1707 |
if (!likely(!(((int64_t)arg1 < (int64_t)arg2 && (flags & 0x10)) || |
1708 |
((int64_t)arg1 > (int64_t)arg2 && (flags & 0x08)) ||
|
1709 |
((int64_t)arg1 == (int64_t)arg2 && (flags & 0x04)) ||
|
1710 |
((uint64_t)arg1 < (uint64_t)arg2 && (flags & 0x02)) ||
|
1711 |
((uint64_t)arg1 > (uint64_t)arg2 && (flags & 0x01)))))
|
1712 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP); |
1713 |
} |
1714 |
#endif
|
1715 |
|
1716 |
/*****************************************************************************/
|
1717 |
/* PowerPC 601 specific instructions (POWER bridge) */
|
1718 |
|
1719 |
target_ulong helper_clcs (uint32_t arg) |
1720 |
{ |
1721 |
switch (arg) {
|
1722 |
case 0x0CUL: |
1723 |
/* Instruction cache line size */
|
1724 |
return env->icache_line_size;
|
1725 |
break;
|
1726 |
case 0x0DUL: |
1727 |
/* Data cache line size */
|
1728 |
return env->dcache_line_size;
|
1729 |
break;
|
1730 |
case 0x0EUL: |
1731 |
/* Minimum cache line size */
|
1732 |
return (env->icache_line_size < env->dcache_line_size) ?
|
1733 |
env->icache_line_size : env->dcache_line_size; |
1734 |
break;
|
1735 |
case 0x0FUL: |
1736 |
/* Maximum cache line size */
|
1737 |
return (env->icache_line_size > env->dcache_line_size) ?
|
1738 |
env->icache_line_size : env->dcache_line_size; |
1739 |
break;
|
1740 |
default:
|
1741 |
/* Undefined */
|
1742 |
return 0; |
1743 |
break;
|
1744 |
} |
1745 |
} |
1746 |
|
1747 |
target_ulong helper_div (target_ulong arg1, target_ulong arg2) |
1748 |
{ |
1749 |
uint64_t tmp = (uint64_t)arg1 << 32 | env->spr[SPR_MQ];
|
1750 |
|
1751 |
if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
1752 |
(int32_t)arg2 == 0) {
|
1753 |
env->spr[SPR_MQ] = 0;
|
1754 |
return INT32_MIN;
|
1755 |
} else {
|
1756 |
env->spr[SPR_MQ] = tmp % arg2; |
1757 |
return tmp / (int32_t)arg2;
|
1758 |
} |
1759 |
} |
1760 |
|
1761 |
target_ulong helper_divo (target_ulong arg1, target_ulong arg2) |
1762 |
{ |
1763 |
uint64_t tmp = (uint64_t)arg1 << 32 | env->spr[SPR_MQ];
|
1764 |
|
1765 |
if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
1766 |
(int32_t)arg2 == 0) {
|
1767 |
env->xer |= (1 << XER_OV) | (1 << XER_SO); |
1768 |
env->spr[SPR_MQ] = 0;
|
1769 |
return INT32_MIN;
|
1770 |
} else {
|
1771 |
env->spr[SPR_MQ] = tmp % arg2; |
1772 |
tmp /= (int32_t)arg2; |
1773 |
if ((int32_t)tmp != tmp) {
|
1774 |
env->xer |= (1 << XER_OV) | (1 << XER_SO); |
1775 |
} else {
|
1776 |
env->xer &= ~(1 << XER_OV);
|
1777 |
} |
1778 |
return tmp;
|
1779 |
} |
1780 |
} |
1781 |
|
1782 |
target_ulong helper_divs (target_ulong arg1, target_ulong arg2) |
1783 |
{ |
1784 |
if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
1785 |
(int32_t)arg2 == 0) {
|
1786 |
env->spr[SPR_MQ] = 0;
|
1787 |
return INT32_MIN;
|
1788 |
} else {
|
1789 |
env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2; |
1790 |
return (int32_t)arg1 / (int32_t)arg2;
|
1791 |
} |
1792 |
} |
1793 |
|
1794 |
target_ulong helper_divso (target_ulong arg1, target_ulong arg2) |
1795 |
{ |
1796 |
if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
1797 |
(int32_t)arg2 == 0) {
|
1798 |
env->xer |= (1 << XER_OV) | (1 << XER_SO); |
1799 |
env->spr[SPR_MQ] = 0;
|
1800 |
return INT32_MIN;
|
1801 |
} else {
|
1802 |
env->xer &= ~(1 << XER_OV);
|
1803 |
env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2; |
1804 |
return (int32_t)arg1 / (int32_t)arg2;
|
1805 |
} |
1806 |
} |
1807 |
|
1808 |
#if !defined (CONFIG_USER_ONLY)
|
1809 |
target_ulong helper_rac (target_ulong addr) |
1810 |
{ |
1811 |
mmu_ctx_t ctx; |
1812 |
int nb_BATs;
|
1813 |
target_ulong ret = 0;
|
1814 |
|
1815 |
/* We don't have to generate many instances of this instruction,
|
1816 |
* as rac is supervisor only.
|
1817 |
*/
|
1818 |
/* XXX: FIX THIS: Pretend we have no BAT */
|
1819 |
nb_BATs = env->nb_BATs; |
1820 |
env->nb_BATs = 0;
|
1821 |
if (get_physical_address(env, &ctx, addr, 0, ACCESS_INT) == 0) |
1822 |
ret = ctx.raddr; |
1823 |
env->nb_BATs = nb_BATs; |
1824 |
return ret;
|
1825 |
} |
1826 |
|
1827 |
void helper_rfsvc (void) |
1828 |
{ |
1829 |
do_rfi(env->lr, env->ctr, 0x0000FFFF, 0); |
1830 |
} |
1831 |
#endif
|
1832 |
|
1833 |
/*****************************************************************************/
|
1834 |
/* 602 specific instructions */
|
1835 |
/* mfrom is the most crazy instruction ever seen, imho ! */
|
1836 |
/* Real implementation uses a ROM table. Do the same */
|
1837 |
/* Extremly decomposed:
|
1838 |
* -arg / 256
|
1839 |
* return 256 * log10(10 + 1.0) + 0.5
|
1840 |
*/
|
1841 |
#if !defined (CONFIG_USER_ONLY)
|
1842 |
target_ulong helper_602_mfrom (target_ulong arg) |
1843 |
{ |
1844 |
if (likely(arg < 602)) { |
1845 |
#include "mfrom_table.c" |
1846 |
return mfrom_ROM_table[arg];
|
1847 |
} else {
|
1848 |
return 0; |
1849 |
} |
1850 |
} |
1851 |
#endif
|
1852 |
|
1853 |
/*****************************************************************************/
|
1854 |
/* Embedded PowerPC specific helpers */
|
1855 |
|
1856 |
/* XXX: to be improved to check access rights when in user-mode */
|
1857 |
target_ulong helper_load_dcr (target_ulong dcrn) |
1858 |
{ |
1859 |
target_ulong val = 0;
|
1860 |
|
1861 |
if (unlikely(env->dcr_env == NULL)) { |
1862 |
if (loglevel != 0) { |
1863 |
fprintf(logfile, "No DCR environment\n");
|
1864 |
} |
1865 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, |
1866 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL); |
1867 |
} else if (unlikely(ppc_dcr_read(env->dcr_env, dcrn, &val) != 0)) { |
1868 |
if (loglevel != 0) { |
1869 |
fprintf(logfile, "DCR read error %d %03x\n", (int)dcrn, (int)dcrn); |
1870 |
} |
1871 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, |
1872 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG); |
1873 |
} |
1874 |
return val;
|
1875 |
} |
1876 |
|
1877 |
void helper_store_dcr (target_ulong dcrn, target_ulong val)
|
1878 |
{ |
1879 |
if (unlikely(env->dcr_env == NULL)) { |
1880 |
if (loglevel != 0) { |
1881 |
fprintf(logfile, "No DCR environment\n");
|
1882 |
} |
1883 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, |
1884 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL); |
1885 |
} else if (unlikely(ppc_dcr_write(env->dcr_env, dcrn, val) != 0)) { |
1886 |
if (loglevel != 0) { |
1887 |
fprintf(logfile, "DCR write error %d %03x\n", (int)dcrn, (int)dcrn); |
1888 |
} |
1889 |
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, |
1890 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG); |
1891 |
} |
1892 |
} |
1893 |
|
1894 |
#if !defined(CONFIG_USER_ONLY)
|
1895 |
void helper_40x_rfci (void) |
1896 |
{ |
1897 |
do_rfi(env->spr[SPR_40x_SRR2], env->spr[SPR_40x_SRR3], |
1898 |
~((target_ulong)0xFFFF0000), 0); |
1899 |
} |
1900 |
|
1901 |
void helper_rfci (void) |
1902 |
{ |
1903 |
do_rfi(env->spr[SPR_BOOKE_CSRR0], SPR_BOOKE_CSRR1, |
1904 |
~((target_ulong)0x3FFF0000), 0); |
1905 |
} |
1906 |
|
1907 |
void helper_rfdi (void) |
1908 |
{ |
1909 |
do_rfi(env->spr[SPR_BOOKE_DSRR0], SPR_BOOKE_DSRR1, |
1910 |
~((target_ulong)0x3FFF0000), 0); |
1911 |
} |
1912 |
|
1913 |
void helper_rfmci (void) |
1914 |
{ |
1915 |
do_rfi(env->spr[SPR_BOOKE_MCSRR0], SPR_BOOKE_MCSRR1, |
1916 |
~((target_ulong)0x3FFF0000), 0); |
1917 |
} |
1918 |
#endif
|
1919 |
|
1920 |
/* 440 specific */
|
1921 |
target_ulong helper_dlmzb (target_ulong high, target_ulong low, uint32_t update_Rc) |
1922 |
{ |
1923 |
target_ulong mask; |
1924 |
int i;
|
1925 |
|
1926 |
i = 1;
|
1927 |
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
1928 |
if ((high & mask) == 0) { |
1929 |
if (update_Rc) {
|
1930 |
env->crf[0] = 0x4; |
1931 |
} |
1932 |
goto done;
|
1933 |
} |
1934 |
i++; |
1935 |
} |
1936 |
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
1937 |
if ((low & mask) == 0) { |
1938 |
if (update_Rc) {
|
1939 |
env->crf[0] = 0x8; |
1940 |
} |
1941 |
goto done;
|
1942 |
} |
1943 |
i++; |
1944 |
} |
1945 |
if (update_Rc) {
|
1946 |
env->crf[0] = 0x2; |
1947 |
} |
1948 |
done:
|
1949 |
env->xer = (env->xer & ~0x7F) | i;
|
1950 |
if (update_Rc) {
|
1951 |
env->crf[0] |= xer_so;
|
1952 |
} |
1953 |
return i;
|
1954 |
} |
1955 |
|
1956 |
/*****************************************************************************/
|
1957 |
/* Altivec extension helpers */
|
1958 |
#if defined(WORDS_BIGENDIAN)
|
1959 |
#define HI_IDX 0 |
1960 |
#define LO_IDX 1 |
1961 |
#else
|
1962 |
#define HI_IDX 1 |
1963 |
#define LO_IDX 0 |
1964 |
#endif
|
1965 |
|
1966 |
#if defined(WORDS_BIGENDIAN)
|
1967 |
#define VECTOR_FOR_INORDER_I(index, element) \
|
1968 |
for (index = 0; index < ARRAY_SIZE(r->element); index++) |
1969 |
#else
|
1970 |
#define VECTOR_FOR_INORDER_I(index, element) \
|
1971 |
for (index = ARRAY_SIZE(r->element)-1; index >= 0; index--) |
1972 |
#endif
|
1973 |
|
1974 |
#define VARITH_DO(name, op, element) \
|
1975 |
void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
1976 |
{ \ |
1977 |
int i; \
|
1978 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
1979 |
r->element[i] = a->element[i] op b->element[i]; \ |
1980 |
} \ |
1981 |
} |
1982 |
#define VARITH(suffix, element) \
|
1983 |
VARITH_DO(add##suffix, +, element) \ |
1984 |
VARITH_DO(sub##suffix, -, element) |
1985 |
VARITH(ubm, u8) |
1986 |
VARITH(uhm, u16) |
1987 |
VARITH(uwm, u32) |
1988 |
#undef VARITH_DO
|
1989 |
#undef VARITH
|
1990 |
|
1991 |
#define VAVG_DO(name, element, etype) \
|
1992 |
void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
1993 |
{ \ |
1994 |
int i; \
|
1995 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
1996 |
etype x = (etype)a->element[i] + (etype)b->element[i] + 1; \
|
1997 |
r->element[i] = x >> 1; \
|
1998 |
} \ |
1999 |
} |
2000 |
|
2001 |
#define VAVG(type, signed_element, signed_type, unsigned_element, unsigned_type) \
|
2002 |
VAVG_DO(avgs##type, signed_element, signed_type) \ |
2003 |
VAVG_DO(avgu##type, unsigned_element, unsigned_type) |
2004 |
VAVG(b, s8, int16_t, u8, uint16_t) |
2005 |
VAVG(h, s16, int32_t, u16, uint32_t) |
2006 |
VAVG(w, s32, int64_t, u32, uint64_t) |
2007 |
#undef VAVG_DO
|
2008 |
#undef VAVG
|
2009 |
|
2010 |
#define VMINMAX_DO(name, compare, element) \
|
2011 |
void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
2012 |
{ \ |
2013 |
int i; \
|
2014 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
2015 |
if (a->element[i] compare b->element[i]) { \
|
2016 |
r->element[i] = b->element[i]; \ |
2017 |
} else { \
|
2018 |
r->element[i] = a->element[i]; \ |
2019 |
} \ |
2020 |
} \ |
2021 |
} |
2022 |
#define VMINMAX(suffix, element) \
|
2023 |
VMINMAX_DO(min##suffix, >, element) \ |
2024 |
VMINMAX_DO(max##suffix, <, element) |
2025 |
VMINMAX(sb, s8) |
2026 |
VMINMAX(sh, s16) |
2027 |
VMINMAX(sw, s32) |
2028 |
VMINMAX(ub, u8) |
2029 |
VMINMAX(uh, u16) |
2030 |
VMINMAX(uw, u32) |
2031 |
#undef VMINMAX_DO
|
2032 |
#undef VMINMAX
|
2033 |
|
2034 |
#define VMRG_DO(name, element, highp) \
|
2035 |
void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
2036 |
{ \ |
2037 |
ppc_avr_t result; \ |
2038 |
int i; \
|
2039 |
size_t n_elems = ARRAY_SIZE(r->element); \ |
2040 |
for (i = 0; i < n_elems/2; i++) { \ |
2041 |
if (highp) { \
|
2042 |
result.element[i*2+HI_IDX] = a->element[i]; \
|
2043 |
result.element[i*2+LO_IDX] = b->element[i]; \
|
2044 |
} else { \
|
2045 |
result.element[n_elems - i*2 - (1+HI_IDX)] = b->element[n_elems - i - 1]; \ |
2046 |
result.element[n_elems - i*2 - (1+LO_IDX)] = a->element[n_elems - i - 1]; \ |
2047 |
} \ |
2048 |
} \ |
2049 |
*r = result; \ |
2050 |
} |
2051 |
#if defined(WORDS_BIGENDIAN)
|
2052 |
#define MRGHI 0 |
2053 |
#define MRGL0 1 |
2054 |
#else
|
2055 |
#define MRGHI 1 |
2056 |
#define MRGLO 0 |
2057 |
#endif
|
2058 |
#define VMRG(suffix, element) \
|
2059 |
VMRG_DO(mrgl##suffix, element, MRGHI) \ |
2060 |
VMRG_DO(mrgh##suffix, element, MRGLO) |
2061 |
VMRG(b, u8) |
2062 |
VMRG(h, u16) |
2063 |
VMRG(w, u32) |
2064 |
#undef VMRG_DO
|
2065 |
#undef VMRG
|
2066 |
#undef MRGHI
|
2067 |
#undef MRGLO
|
2068 |
|
2069 |
#undef VECTOR_FOR_INORDER_I
|
2070 |
#undef HI_IDX
|
2071 |
#undef LO_IDX
|
2072 |
|
2073 |
/*****************************************************************************/
|
2074 |
/* SPE extension helpers */
|
2075 |
/* Use a table to make this quicker */
|
2076 |
static uint8_t hbrev[16] = { |
2077 |
0x0, 0x8, 0x4, 0xC, 0x2, 0xA, 0x6, 0xE, |
2078 |
0x1, 0x9, 0x5, 0xD, 0x3, 0xB, 0x7, 0xF, |
2079 |
}; |
2080 |
|
2081 |
static always_inline uint8_t byte_reverse (uint8_t val)
|
2082 |
{ |
2083 |
return hbrev[val >> 4] | (hbrev[val & 0xF] << 4); |
2084 |
} |
2085 |
|
2086 |
static always_inline uint32_t word_reverse (uint32_t val)
|
2087 |
{ |
2088 |
return byte_reverse(val >> 24) | (byte_reverse(val >> 16) << 8) | |
2089 |
(byte_reverse(val >> 8) << 16) | (byte_reverse(val) << 24); |
2090 |
} |
2091 |
|
2092 |
#define MASKBITS 16 // Random value - to be fixed (implementation dependant) |
2093 |
target_ulong helper_brinc (target_ulong arg1, target_ulong arg2) |
2094 |
{ |
2095 |
uint32_t a, b, d, mask; |
2096 |
|
2097 |
mask = UINT32_MAX >> (32 - MASKBITS);
|
2098 |
a = arg1 & mask; |
2099 |
b = arg2 & mask; |
2100 |
d = word_reverse(1 + word_reverse(a | ~b));
|
2101 |
return (arg1 & ~mask) | (d & b);
|
2102 |
} |
2103 |
|
2104 |
uint32_t helper_cntlsw32 (uint32_t val) |
2105 |
{ |
2106 |
if (val & 0x80000000) |
2107 |
return clz32(~val);
|
2108 |
else
|
2109 |
return clz32(val);
|
2110 |
} |
2111 |
|
2112 |
uint32_t helper_cntlzw32 (uint32_t val) |
2113 |
{ |
2114 |
return clz32(val);
|
2115 |
} |
2116 |
|
2117 |
/* Single-precision floating-point conversions */
|
2118 |
static always_inline uint32_t efscfsi (uint32_t val)
|
2119 |
{ |
2120 |
CPU_FloatU u; |
2121 |
|
2122 |
u.f = int32_to_float32(val, &env->spe_status); |
2123 |
|
2124 |
return u.l;
|
2125 |
} |
2126 |
|
2127 |
static always_inline uint32_t efscfui (uint32_t val)
|
2128 |
{ |
2129 |
CPU_FloatU u; |
2130 |
|
2131 |
u.f = uint32_to_float32(val, &env->spe_status); |
2132 |
|
2133 |
return u.l;
|
2134 |
} |
2135 |
|
2136 |
static always_inline int32_t efsctsi (uint32_t val)
|
2137 |
{ |
2138 |
CPU_FloatU u; |
2139 |
|
2140 |
u.l = val; |
2141 |
/* NaN are not treated the same way IEEE 754 does */
|
2142 |
if (unlikely(float32_is_nan(u.f)))
|
2143 |
return 0; |
2144 |
|
2145 |
return float32_to_int32(u.f, &env->spe_status);
|
2146 |
} |
2147 |
|
2148 |
static always_inline uint32_t efsctui (uint32_t val)
|
2149 |
{ |
2150 |
CPU_FloatU u; |
2151 |
|
2152 |
u.l = val; |
2153 |
/* NaN are not treated the same way IEEE 754 does */
|
2154 |
if (unlikely(float32_is_nan(u.f)))
|
2155 |
return 0; |
2156 |
|
2157 |
return float32_to_uint32(u.f, &env->spe_status);
|
2158 |
} |
2159 |
|
2160 |
static always_inline uint32_t efsctsiz (uint32_t val)
|
2161 |
{ |
2162 |
CPU_FloatU u; |
2163 |
|
2164 |
u.l = val; |
2165 |
/* NaN are not treated the same way IEEE 754 does */
|
2166 |
if (unlikely(float32_is_nan(u.f)))
|
2167 |
return 0; |
2168 |
|
2169 |
return float32_to_int32_round_to_zero(u.f, &env->spe_status);
|
2170 |
} |
2171 |
|
2172 |
static always_inline uint32_t efsctuiz (uint32_t val)
|
2173 |
{ |
2174 |
CPU_FloatU u; |
2175 |
|
2176 |
u.l = val; |
2177 |
/* NaN are not treated the same way IEEE 754 does */
|
2178 |
if (unlikely(float32_is_nan(u.f)))
|
2179 |
return 0; |
2180 |
|
2181 |
return float32_to_uint32_round_to_zero(u.f, &env->spe_status);
|
2182 |
} |
2183 |
|
2184 |
static always_inline uint32_t efscfsf (uint32_t val)
|
2185 |
{ |
2186 |
CPU_FloatU u; |
2187 |
float32 tmp; |
2188 |
|
2189 |
u.f = int32_to_float32(val, &env->spe_status); |
2190 |
tmp = int64_to_float32(1ULL << 32, &env->spe_status); |
2191 |
u.f = float32_div(u.f, tmp, &env->spe_status); |
2192 |
|
2193 |
return u.l;
|
2194 |
} |
2195 |
|
2196 |
static always_inline uint32_t efscfuf (uint32_t val)
|
2197 |
{ |
2198 |
CPU_FloatU u; |
2199 |
float32 tmp; |
2200 |
|
2201 |
u.f = uint32_to_float32(val, &env->spe_status); |
2202 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
2203 |
u.f = float32_div(u.f, tmp, &env->spe_status); |
2204 |
|
2205 |
return u.l;
|
2206 |
} |
2207 |
|
2208 |
static always_inline uint32_t efsctsf (uint32_t val)
|
2209 |
{ |
2210 |
CPU_FloatU u; |
2211 |
float32 tmp; |
2212 |
|
2213 |
u.l = val; |
2214 |
/* NaN are not treated the same way IEEE 754 does */
|
2215 |
if (unlikely(float32_is_nan(u.f)))
|
2216 |
return 0; |
2217 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
2218 |
u.f = float32_mul(u.f, tmp, &env->spe_status); |
2219 |
|
2220 |
return float32_to_int32(u.f, &env->spe_status);
|
2221 |
} |
2222 |
|
2223 |
static always_inline uint32_t efsctuf (uint32_t val)
|
2224 |
{ |
2225 |
CPU_FloatU u; |
2226 |
float32 tmp; |
2227 |
|
2228 |
u.l = val; |
2229 |
/* NaN are not treated the same way IEEE 754 does */
|
2230 |
if (unlikely(float32_is_nan(u.f)))
|
2231 |
return 0; |
2232 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
2233 |
u.f = float32_mul(u.f, tmp, &env->spe_status); |
2234 |
|
2235 |
return float32_to_uint32(u.f, &env->spe_status);
|
2236 |
} |
2237 |
|
2238 |
#define HELPER_SPE_SINGLE_CONV(name) \
|
2239 |
uint32_t helper_e##name (uint32_t val) \ |
2240 |
{ \ |
2241 |
return e##name(val); \ |
2242 |
} |
2243 |
/* efscfsi */
|
2244 |
HELPER_SPE_SINGLE_CONV(fscfsi); |
2245 |
/* efscfui */
|
2246 |
HELPER_SPE_SINGLE_CONV(fscfui); |
2247 |
/* efscfuf */
|
2248 |
HELPER_SPE_SINGLE_CONV(fscfuf); |
2249 |
/* efscfsf */
|
2250 |
HELPER_SPE_SINGLE_CONV(fscfsf); |
2251 |
/* efsctsi */
|
2252 |
HELPER_SPE_SINGLE_CONV(fsctsi); |
2253 |
/* efsctui */
|
2254 |
HELPER_SPE_SINGLE_CONV(fsctui); |
2255 |
/* efsctsiz */
|
2256 |
HELPER_SPE_SINGLE_CONV(fsctsiz); |
2257 |
/* efsctuiz */
|
2258 |
HELPER_SPE_SINGLE_CONV(fsctuiz); |
2259 |
/* efsctsf */
|
2260 |
HELPER_SPE_SINGLE_CONV(fsctsf); |
2261 |
/* efsctuf */
|
2262 |
HELPER_SPE_SINGLE_CONV(fsctuf); |
2263 |
|
2264 |
#define HELPER_SPE_VECTOR_CONV(name) \
|
2265 |
uint64_t helper_ev##name (uint64_t val) \ |
2266 |
{ \ |
2267 |
return ((uint64_t)e##name(val >> 32) << 32) | \ |
2268 |
(uint64_t)e##name(val); \ |
2269 |
} |
2270 |
/* evfscfsi */
|
2271 |
HELPER_SPE_VECTOR_CONV(fscfsi); |
2272 |
/* evfscfui */
|
2273 |
HELPER_SPE_VECTOR_CONV(fscfui); |
2274 |
/* evfscfuf */
|
2275 |
HELPER_SPE_VECTOR_CONV(fscfuf); |
2276 |
/* evfscfsf */
|
2277 |
HELPER_SPE_VECTOR_CONV(fscfsf); |
2278 |
/* evfsctsi */
|
2279 |
HELPER_SPE_VECTOR_CONV(fsctsi); |
2280 |
/* evfsctui */
|
2281 |
HELPER_SPE_VECTOR_CONV(fsctui); |
2282 |
/* evfsctsiz */
|
2283 |
HELPER_SPE_VECTOR_CONV(fsctsiz); |
2284 |
/* evfsctuiz */
|
2285 |
HELPER_SPE_VECTOR_CONV(fsctuiz); |
2286 |
/* evfsctsf */
|
2287 |
HELPER_SPE_VECTOR_CONV(fsctsf); |
2288 |
/* evfsctuf */
|
2289 |
HELPER_SPE_VECTOR_CONV(fsctuf); |
2290 |
|
2291 |
/* Single-precision floating-point arithmetic */
|
2292 |
static always_inline uint32_t efsadd (uint32_t op1, uint32_t op2)
|
2293 |
{ |
2294 |
CPU_FloatU u1, u2; |
2295 |
u1.l = op1; |
2296 |
u2.l = op2; |
2297 |
u1.f = float32_add(u1.f, u2.f, &env->spe_status); |
2298 |
return u1.l;
|
2299 |
} |
2300 |
|
2301 |
static always_inline uint32_t efssub (uint32_t op1, uint32_t op2)
|
2302 |
{ |
2303 |
CPU_FloatU u1, u2; |
2304 |
u1.l = op1; |
2305 |
u2.l = op2; |
2306 |
u1.f = float32_sub(u1.f, u2.f, &env->spe_status); |
2307 |
return u1.l;
|
2308 |
} |
2309 |
|
2310 |
static always_inline uint32_t efsmul (uint32_t op1, uint32_t op2)
|
2311 |
{ |
2312 |
CPU_FloatU u1, u2; |
2313 |
u1.l = op1; |
2314 |
u2.l = op2; |
2315 |
u1.f = float32_mul(u1.f, u2.f, &env->spe_status); |
2316 |
return u1.l;
|
2317 |
} |
2318 |
|
2319 |
static always_inline uint32_t efsdiv (uint32_t op1, uint32_t op2)
|
2320 |
{ |
2321 |
CPU_FloatU u1, u2; |
2322 |
u1.l = op1; |
2323 |
u2.l = op2; |
2324 |
u1.f = float32_div(u1.f, u2.f, &env->spe_status); |
2325 |
return u1.l;
|
2326 |
} |
2327 |
|
2328 |
#define HELPER_SPE_SINGLE_ARITH(name) \
|
2329 |
uint32_t helper_e##name (uint32_t op1, uint32_t op2) \ |
2330 |
{ \ |
2331 |
return e##name(op1, op2); \ |
2332 |
} |
2333 |
/* efsadd */
|
2334 |
HELPER_SPE_SINGLE_ARITH(fsadd); |
2335 |
/* efssub */
|
2336 |
HELPER_SPE_SINGLE_ARITH(fssub); |
2337 |
/* efsmul */
|
2338 |
HELPER_SPE_SINGLE_ARITH(fsmul); |
2339 |
/* efsdiv */
|
2340 |
HELPER_SPE_SINGLE_ARITH(fsdiv); |
2341 |
|
2342 |
#define HELPER_SPE_VECTOR_ARITH(name) \
|
2343 |
uint64_t helper_ev##name (uint64_t op1, uint64_t op2) \ |
2344 |
{ \ |
2345 |
return ((uint64_t)e##name(op1 >> 32, op2 >> 32) << 32) | \ |
2346 |
(uint64_t)e##name(op1, op2); \ |
2347 |
} |
2348 |
/* evfsadd */
|
2349 |
HELPER_SPE_VECTOR_ARITH(fsadd); |
2350 |
/* evfssub */
|
2351 |
HELPER_SPE_VECTOR_ARITH(fssub); |
2352 |
/* evfsmul */
|
2353 |
HELPER_SPE_VECTOR_ARITH(fsmul); |
2354 |
/* evfsdiv */
|
2355 |
HELPER_SPE_VECTOR_ARITH(fsdiv); |
2356 |
|
2357 |
/* Single-precision floating-point comparisons */
|
2358 |
static always_inline uint32_t efststlt (uint32_t op1, uint32_t op2)
|
2359 |
{ |
2360 |
CPU_FloatU u1, u2; |
2361 |
u1.l = op1; |
2362 |
u2.l = op2; |
2363 |
return float32_lt(u1.f, u2.f, &env->spe_status) ? 4 : 0; |
2364 |
} |
2365 |
|
2366 |
static always_inline uint32_t efststgt (uint32_t op1, uint32_t op2)
|
2367 |
{ |
2368 |
CPU_FloatU u1, u2; |
2369 |
u1.l = op1; |
2370 |
u2.l = op2; |
2371 |
return float32_le(u1.f, u2.f, &env->spe_status) ? 0 : 4; |
2372 |
} |
2373 |
|
2374 |
static always_inline uint32_t efststeq (uint32_t op1, uint32_t op2)
|
2375 |
{ |
2376 |
CPU_FloatU u1, u2; |
2377 |
u1.l = op1; |
2378 |
u2.l = op2; |
2379 |
return float32_eq(u1.f, u2.f, &env->spe_status) ? 4 : 0; |
2380 |
} |
2381 |
|
2382 |
static always_inline uint32_t efscmplt (uint32_t op1, uint32_t op2)
|
2383 |
{ |
2384 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2385 |
return efststlt(op1, op2);
|
2386 |
} |
2387 |
|
2388 |
static always_inline uint32_t efscmpgt (uint32_t op1, uint32_t op2)
|
2389 |
{ |
2390 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2391 |
return efststgt(op1, op2);
|
2392 |
} |
2393 |
|
2394 |
static always_inline uint32_t efscmpeq (uint32_t op1, uint32_t op2)
|
2395 |
{ |
2396 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2397 |
return efststeq(op1, op2);
|
2398 |
} |
2399 |
|
2400 |
#define HELPER_SINGLE_SPE_CMP(name) \
|
2401 |
uint32_t helper_e##name (uint32_t op1, uint32_t op2) \ |
2402 |
{ \ |
2403 |
return e##name(op1, op2) << 2; \ |
2404 |
} |
2405 |
/* efststlt */
|
2406 |
HELPER_SINGLE_SPE_CMP(fststlt); |
2407 |
/* efststgt */
|
2408 |
HELPER_SINGLE_SPE_CMP(fststgt); |
2409 |
/* efststeq */
|
2410 |
HELPER_SINGLE_SPE_CMP(fststeq); |
2411 |
/* efscmplt */
|
2412 |
HELPER_SINGLE_SPE_CMP(fscmplt); |
2413 |
/* efscmpgt */
|
2414 |
HELPER_SINGLE_SPE_CMP(fscmpgt); |
2415 |
/* efscmpeq */
|
2416 |
HELPER_SINGLE_SPE_CMP(fscmpeq); |
2417 |
|
2418 |
static always_inline uint32_t evcmp_merge (int t0, int t1) |
2419 |
{ |
2420 |
return (t0 << 3) | (t1 << 2) | ((t0 | t1) << 1) | (t0 & t1); |
2421 |
} |
2422 |
|
2423 |
#define HELPER_VECTOR_SPE_CMP(name) \
|
2424 |
uint32_t helper_ev##name (uint64_t op1, uint64_t op2) \ |
2425 |
{ \ |
2426 |
return evcmp_merge(e##name(op1 >> 32, op2 >> 32), e##name(op1, op2)); \ |
2427 |
} |
2428 |
/* evfststlt */
|
2429 |
HELPER_VECTOR_SPE_CMP(fststlt); |
2430 |
/* evfststgt */
|
2431 |
HELPER_VECTOR_SPE_CMP(fststgt); |
2432 |
/* evfststeq */
|
2433 |
HELPER_VECTOR_SPE_CMP(fststeq); |
2434 |
/* evfscmplt */
|
2435 |
HELPER_VECTOR_SPE_CMP(fscmplt); |
2436 |
/* evfscmpgt */
|
2437 |
HELPER_VECTOR_SPE_CMP(fscmpgt); |
2438 |
/* evfscmpeq */
|
2439 |
HELPER_VECTOR_SPE_CMP(fscmpeq); |
2440 |
|
2441 |
/* Double-precision floating-point conversion */
|
2442 |
uint64_t helper_efdcfsi (uint32_t val) |
2443 |
{ |
2444 |
CPU_DoubleU u; |
2445 |
|
2446 |
u.d = int32_to_float64(val, &env->spe_status); |
2447 |
|
2448 |
return u.ll;
|
2449 |
} |
2450 |
|
2451 |
uint64_t helper_efdcfsid (uint64_t val) |
2452 |
{ |
2453 |
CPU_DoubleU u; |
2454 |
|
2455 |
u.d = int64_to_float64(val, &env->spe_status); |
2456 |
|
2457 |
return u.ll;
|
2458 |
} |
2459 |
|
2460 |
uint64_t helper_efdcfui (uint32_t val) |
2461 |
{ |
2462 |
CPU_DoubleU u; |
2463 |
|
2464 |
u.d = uint32_to_float64(val, &env->spe_status); |
2465 |
|
2466 |
return u.ll;
|
2467 |
} |
2468 |
|
2469 |
uint64_t helper_efdcfuid (uint64_t val) |
2470 |
{ |
2471 |
CPU_DoubleU u; |
2472 |
|
2473 |
u.d = uint64_to_float64(val, &env->spe_status); |
2474 |
|
2475 |
return u.ll;
|
2476 |
} |
2477 |
|
2478 |
uint32_t helper_efdctsi (uint64_t val) |
2479 |
{ |
2480 |
CPU_DoubleU u; |
2481 |
|
2482 |
u.ll = val; |
2483 |
/* NaN are not treated the same way IEEE 754 does */
|
2484 |
if (unlikely(float64_is_nan(u.d)))
|
2485 |
return 0; |
2486 |
|
2487 |
return float64_to_int32(u.d, &env->spe_status);
|
2488 |
} |
2489 |
|
2490 |
uint32_t helper_efdctui (uint64_t val) |
2491 |
{ |
2492 |
CPU_DoubleU u; |
2493 |
|
2494 |
u.ll = val; |
2495 |
/* NaN are not treated the same way IEEE 754 does */
|
2496 |
if (unlikely(float64_is_nan(u.d)))
|
2497 |
return 0; |
2498 |
|
2499 |
return float64_to_uint32(u.d, &env->spe_status);
|
2500 |
} |
2501 |
|
2502 |
uint32_t helper_efdctsiz (uint64_t val) |
2503 |
{ |
2504 |
CPU_DoubleU u; |
2505 |
|
2506 |
u.ll = val; |
2507 |
/* NaN are not treated the same way IEEE 754 does */
|
2508 |
if (unlikely(float64_is_nan(u.d)))
|
2509 |
return 0; |
2510 |
|
2511 |
return float64_to_int32_round_to_zero(u.d, &env->spe_status);
|
2512 |
} |
2513 |
|
2514 |
uint64_t helper_efdctsidz (uint64_t val) |
2515 |
{ |
2516 |
CPU_DoubleU u; |
2517 |
|
2518 |
u.ll = val; |
2519 |
/* NaN are not treated the same way IEEE 754 does */
|
2520 |
if (unlikely(float64_is_nan(u.d)))
|
2521 |
return 0; |
2522 |
|
2523 |
return float64_to_int64_round_to_zero(u.d, &env->spe_status);
|
2524 |
} |
2525 |
|
2526 |
uint32_t helper_efdctuiz (uint64_t val) |
2527 |
{ |
2528 |
CPU_DoubleU u; |
2529 |
|
2530 |
u.ll = val; |
2531 |
/* NaN are not treated the same way IEEE 754 does */
|
2532 |
if (unlikely(float64_is_nan(u.d)))
|
2533 |
return 0; |
2534 |
|
2535 |
return float64_to_uint32_round_to_zero(u.d, &env->spe_status);
|
2536 |
} |
2537 |
|
2538 |
uint64_t helper_efdctuidz (uint64_t val) |
2539 |
{ |
2540 |
CPU_DoubleU u; |
2541 |
|
2542 |
u.ll = val; |
2543 |
/* NaN are not treated the same way IEEE 754 does */
|
2544 |
if (unlikely(float64_is_nan(u.d)))
|
2545 |
return 0; |
2546 |
|
2547 |
return float64_to_uint64_round_to_zero(u.d, &env->spe_status);
|
2548 |
} |
2549 |
|
2550 |
uint64_t helper_efdcfsf (uint32_t val) |
2551 |
{ |
2552 |
CPU_DoubleU u; |
2553 |
float64 tmp; |
2554 |
|
2555 |
u.d = int32_to_float64(val, &env->spe_status); |
2556 |
tmp = int64_to_float64(1ULL << 32, &env->spe_status); |
2557 |
u.d = float64_div(u.d, tmp, &env->spe_status); |
2558 |
|
2559 |
return u.ll;
|
2560 |
} |
2561 |
|
2562 |
uint64_t helper_efdcfuf (uint32_t val) |
2563 |
{ |
2564 |
CPU_DoubleU u; |
2565 |
float64 tmp; |
2566 |
|
2567 |
u.d = uint32_to_float64(val, &env->spe_status); |
2568 |
tmp = int64_to_float64(1ULL << 32, &env->spe_status); |
2569 |
u.d = float64_div(u.d, tmp, &env->spe_status); |
2570 |
|
2571 |
return u.ll;
|
2572 |
} |
2573 |
|
2574 |
uint32_t helper_efdctsf (uint64_t val) |
2575 |
{ |
2576 |
CPU_DoubleU u; |
2577 |
float64 tmp; |
2578 |
|
2579 |
u.ll = val; |
2580 |
/* NaN are not treated the same way IEEE 754 does */
|
2581 |
if (unlikely(float64_is_nan(u.d)))
|
2582 |
return 0; |
2583 |
tmp = uint64_to_float64(1ULL << 32, &env->spe_status); |
2584 |
u.d = float64_mul(u.d, tmp, &env->spe_status); |
2585 |
|
2586 |
return float64_to_int32(u.d, &env->spe_status);
|
2587 |
} |
2588 |
|
2589 |
uint32_t helper_efdctuf (uint64_t val) |
2590 |
{ |
2591 |
CPU_DoubleU u; |
2592 |
float64 tmp; |
2593 |
|
2594 |
u.ll = val; |
2595 |
/* NaN are not treated the same way IEEE 754 does */
|
2596 |
if (unlikely(float64_is_nan(u.d)))
|
2597 |
return 0; |
2598 |
tmp = uint64_to_float64(1ULL << 32, &env->spe_status); |
2599 |
u.d = float64_mul(u.d, tmp, &env->spe_status); |
2600 |
|
2601 |
return float64_to_uint32(u.d, &env->spe_status);
|
2602 |
} |
2603 |
|
2604 |
uint32_t helper_efscfd (uint64_t val) |
2605 |
{ |
2606 |
CPU_DoubleU u1; |
2607 |
CPU_FloatU u2; |
2608 |
|
2609 |
u1.ll = val; |
2610 |
u2.f = float64_to_float32(u1.d, &env->spe_status); |
2611 |
|
2612 |
return u2.l;
|
2613 |
} |
2614 |
|
2615 |
uint64_t helper_efdcfs (uint32_t val) |
2616 |
{ |
2617 |
CPU_DoubleU u2; |
2618 |
CPU_FloatU u1; |
2619 |
|
2620 |
u1.l = val; |
2621 |
u2.d = float32_to_float64(u1.f, &env->spe_status); |
2622 |
|
2623 |
return u2.ll;
|
2624 |
} |
2625 |
|
2626 |
/* Double precision fixed-point arithmetic */
|
2627 |
uint64_t helper_efdadd (uint64_t op1, uint64_t op2) |
2628 |
{ |
2629 |
CPU_DoubleU u1, u2; |
2630 |
u1.ll = op1; |
2631 |
u2.ll = op2; |
2632 |
u1.d = float64_add(u1.d, u2.d, &env->spe_status); |
2633 |
return u1.ll;
|
2634 |
} |
2635 |
|
2636 |
uint64_t helper_efdsub (uint64_t op1, uint64_t op2) |
2637 |
{ |
2638 |
CPU_DoubleU u1, u2; |
2639 |
u1.ll = op1; |
2640 |
u2.ll = op2; |
2641 |
u1.d = float64_sub(u1.d, u2.d, &env->spe_status); |
2642 |
return u1.ll;
|
2643 |
} |
2644 |
|
2645 |
uint64_t helper_efdmul (uint64_t op1, uint64_t op2) |
2646 |
{ |
2647 |
CPU_DoubleU u1, u2; |
2648 |
u1.ll = op1; |
2649 |
u2.ll = op2; |
2650 |
u1.d = float64_mul(u1.d, u2.d, &env->spe_status); |
2651 |
return u1.ll;
|
2652 |
} |
2653 |
|
2654 |
uint64_t helper_efddiv (uint64_t op1, uint64_t op2) |
2655 |
{ |
2656 |
CPU_DoubleU u1, u2; |
2657 |
u1.ll = op1; |
2658 |
u2.ll = op2; |
2659 |
u1.d = float64_div(u1.d, u2.d, &env->spe_status); |
2660 |
return u1.ll;
|
2661 |
} |
2662 |
|
2663 |
/* Double precision floating point helpers */
|
2664 |
uint32_t helper_efdtstlt (uint64_t op1, uint64_t op2) |
2665 |
{ |
2666 |
CPU_DoubleU u1, u2; |
2667 |
u1.ll = op1; |
2668 |
u2.ll = op2; |
2669 |
return float64_lt(u1.d, u2.d, &env->spe_status) ? 4 : 0; |
2670 |
} |
2671 |
|
2672 |
uint32_t helper_efdtstgt (uint64_t op1, uint64_t op2) |
2673 |
{ |
2674 |
CPU_DoubleU u1, u2; |
2675 |
u1.ll = op1; |
2676 |
u2.ll = op2; |
2677 |
return float64_le(u1.d, u2.d, &env->spe_status) ? 0 : 4; |
2678 |
} |
2679 |
|
2680 |
uint32_t helper_efdtsteq (uint64_t op1, uint64_t op2) |
2681 |
{ |
2682 |
CPU_DoubleU u1, u2; |
2683 |
u1.ll = op1; |
2684 |
u2.ll = op2; |
2685 |
return float64_eq(u1.d, u2.d, &env->spe_status) ? 4 : 0; |
2686 |
} |
2687 |
|
2688 |
uint32_t helper_efdcmplt (uint64_t op1, uint64_t op2) |
2689 |
{ |
2690 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2691 |
return helper_efdtstlt(op1, op2);
|
2692 |
} |
2693 |
|
2694 |
uint32_t helper_efdcmpgt (uint64_t op1, uint64_t op2) |
2695 |
{ |
2696 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2697 |
return helper_efdtstgt(op1, op2);
|
2698 |
} |
2699 |
|
2700 |
uint32_t helper_efdcmpeq (uint64_t op1, uint64_t op2) |
2701 |
{ |
2702 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2703 |
return helper_efdtsteq(op1, op2);
|
2704 |
} |
2705 |
|
2706 |
/*****************************************************************************/
|
2707 |
/* Softmmu support */
|
2708 |
#if !defined (CONFIG_USER_ONLY)
|
2709 |
|
2710 |
#define MMUSUFFIX _mmu
|
2711 |
|
2712 |
#define SHIFT 0 |
2713 |
#include "softmmu_template.h" |
2714 |
|
2715 |
#define SHIFT 1 |
2716 |
#include "softmmu_template.h" |
2717 |
|
2718 |
#define SHIFT 2 |
2719 |
#include "softmmu_template.h" |
2720 |
|
2721 |
#define SHIFT 3 |
2722 |
#include "softmmu_template.h" |
2723 |
|
2724 |
/* try to fill the TLB and return an exception if error. If retaddr is
|
2725 |
NULL, it means that the function was called in C code (i.e. not
|
2726 |
from generated code or from helper.c) */
|
2727 |
/* XXX: fix it to restore all registers */
|
2728 |
void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr) |
2729 |
{ |
2730 |
TranslationBlock *tb; |
2731 |
CPUState *saved_env; |
2732 |
unsigned long pc; |
2733 |
int ret;
|
2734 |
|
2735 |
/* XXX: hack to restore env in all cases, even if not called from
|
2736 |
generated code */
|
2737 |
saved_env = env; |
2738 |
env = cpu_single_env; |
2739 |
ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
|
2740 |
if (unlikely(ret != 0)) { |
2741 |
if (likely(retaddr)) {
|
2742 |
/* now we have a real cpu fault */
|
2743 |
pc = (unsigned long)retaddr; |
2744 |
tb = tb_find_pc(pc); |
2745 |
if (likely(tb)) {
|
2746 |
/* the PC is inside the translated code. It means that we have
|
2747 |
a virtual CPU fault */
|
2748 |
cpu_restore_state(tb, env, pc, NULL);
|
2749 |
} |
2750 |
} |
2751 |
helper_raise_exception_err(env->exception_index, env->error_code); |
2752 |
} |
2753 |
env = saved_env; |
2754 |
} |
2755 |
|
2756 |
/* Segment registers load and store */
|
2757 |
target_ulong helper_load_sr (target_ulong sr_num) |
2758 |
{ |
2759 |
return env->sr[sr_num];
|
2760 |
} |
2761 |
|
2762 |
void helper_store_sr (target_ulong sr_num, target_ulong val)
|
2763 |
{ |
2764 |
ppc_store_sr(env, sr_num, val); |
2765 |
} |
2766 |
|
2767 |
/* SLB management */
|
2768 |
#if defined(TARGET_PPC64)
|
2769 |
target_ulong helper_load_slb (target_ulong slb_nr) |
2770 |
{ |
2771 |
return ppc_load_slb(env, slb_nr);
|
2772 |
} |
2773 |
|
2774 |
void helper_store_slb (target_ulong slb_nr, target_ulong rs)
|
2775 |
{ |
2776 |
ppc_store_slb(env, slb_nr, rs); |
2777 |
} |
2778 |
|
2779 |
void helper_slbia (void) |
2780 |
{ |
2781 |
ppc_slb_invalidate_all(env); |
2782 |
} |
2783 |
|
2784 |
void helper_slbie (target_ulong addr)
|
2785 |
{ |
2786 |
ppc_slb_invalidate_one(env, addr); |
2787 |
} |
2788 |
|
2789 |
#endif /* defined(TARGET_PPC64) */ |
2790 |
|
2791 |
/* TLB management */
|
2792 |
void helper_tlbia (void) |
2793 |
{ |
2794 |
ppc_tlb_invalidate_all(env); |
2795 |
} |
2796 |
|
2797 |
void helper_tlbie (target_ulong addr)
|
2798 |
{ |
2799 |
ppc_tlb_invalidate_one(env, addr); |
2800 |
} |
2801 |
|
2802 |
/* Software driven TLBs management */
|
2803 |
/* PowerPC 602/603 software TLB load instructions helpers */
|
2804 |
static void do_6xx_tlb (target_ulong new_EPN, int is_code) |
2805 |
{ |
2806 |
target_ulong RPN, CMP, EPN; |
2807 |
int way;
|
2808 |
|
2809 |
RPN = env->spr[SPR_RPA]; |
2810 |
if (is_code) {
|
2811 |
CMP = env->spr[SPR_ICMP]; |
2812 |
EPN = env->spr[SPR_IMISS]; |
2813 |
} else {
|
2814 |
CMP = env->spr[SPR_DCMP]; |
2815 |
EPN = env->spr[SPR_DMISS]; |
2816 |
} |
2817 |
way = (env->spr[SPR_SRR1] >> 17) & 1; |
2818 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2819 |
if (loglevel != 0) { |
2820 |
fprintf(logfile, "%s: EPN " ADDRX " " ADDRX " PTE0 " ADDRX |
2821 |
" PTE1 " ADDRX " way %d\n", |
2822 |
__func__, new_EPN, EPN, CMP, RPN, way); |
2823 |
} |
2824 |
#endif
|
2825 |
/* Store this TLB */
|
2826 |
ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK), |
2827 |
way, is_code, CMP, RPN); |
2828 |
} |
2829 |
|
2830 |
void helper_6xx_tlbd (target_ulong EPN)
|
2831 |
{ |
2832 |
do_6xx_tlb(EPN, 0);
|
2833 |
} |
2834 |
|
2835 |
void helper_6xx_tlbi (target_ulong EPN)
|
2836 |
{ |
2837 |
do_6xx_tlb(EPN, 1);
|
2838 |
} |
2839 |
|
2840 |
/* PowerPC 74xx software TLB load instructions helpers */
|
2841 |
static void do_74xx_tlb (target_ulong new_EPN, int is_code) |
2842 |
{ |
2843 |
target_ulong RPN, CMP, EPN; |
2844 |
int way;
|
2845 |
|
2846 |
RPN = env->spr[SPR_PTELO]; |
2847 |
CMP = env->spr[SPR_PTEHI]; |
2848 |
EPN = env->spr[SPR_TLBMISS] & ~0x3;
|
2849 |
way = env->spr[SPR_TLBMISS] & 0x3;
|
2850 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2851 |
if (loglevel != 0) { |
2852 |
fprintf(logfile, "%s: EPN " ADDRX " " ADDRX " PTE0 " ADDRX |
2853 |
" PTE1 " ADDRX " way %d\n", |
2854 |
__func__, new_EPN, EPN, CMP, RPN, way); |
2855 |
} |
2856 |
#endif
|
2857 |
/* Store this TLB */
|
2858 |
ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK), |
2859 |
way, is_code, CMP, RPN); |
2860 |
} |
2861 |
|
2862 |
void helper_74xx_tlbd (target_ulong EPN)
|
2863 |
{ |
2864 |
do_74xx_tlb(EPN, 0);
|
2865 |
} |
2866 |
|
2867 |
void helper_74xx_tlbi (target_ulong EPN)
|
2868 |
{ |
2869 |
do_74xx_tlb(EPN, 1);
|
2870 |
} |
2871 |
|
2872 |
static always_inline target_ulong booke_tlb_to_page_size (int size) |
2873 |
{ |
2874 |
return 1024 << (2 * size); |
2875 |
} |
2876 |
|
2877 |
static always_inline int booke_page_size_to_tlb (target_ulong page_size) |
2878 |
{ |
2879 |
int size;
|
2880 |
|
2881 |
switch (page_size) {
|
2882 |
case 0x00000400UL: |
2883 |
size = 0x0;
|
2884 |
break;
|
2885 |
case 0x00001000UL: |
2886 |
size = 0x1;
|
2887 |
break;
|
2888 |
case 0x00004000UL: |
2889 |
size = 0x2;
|
2890 |
break;
|
2891 |
case 0x00010000UL: |
2892 |
size = 0x3;
|
2893 |
break;
|
2894 |
case 0x00040000UL: |
2895 |
size = 0x4;
|
2896 |
break;
|
2897 |
case 0x00100000UL: |
2898 |
size = 0x5;
|
2899 |
break;
|
2900 |
case 0x00400000UL: |
2901 |
size = 0x6;
|
2902 |
break;
|
2903 |
case 0x01000000UL: |
2904 |
size = 0x7;
|
2905 |
break;
|
2906 |
case 0x04000000UL: |
2907 |
size = 0x8;
|
2908 |
break;
|
2909 |
case 0x10000000UL: |
2910 |
size = 0x9;
|
2911 |
break;
|
2912 |
case 0x40000000UL: |
2913 |
size = 0xA;
|
2914 |
break;
|
2915 |
#if defined (TARGET_PPC64)
|
2916 |
case 0x000100000000ULL: |
2917 |
size = 0xB;
|
2918 |
break;
|
2919 |
case 0x000400000000ULL: |
2920 |
size = 0xC;
|
2921 |
break;
|
2922 |
case 0x001000000000ULL: |
2923 |
size = 0xD;
|
2924 |
break;
|
2925 |
case 0x004000000000ULL: |
2926 |
size = 0xE;
|
2927 |
break;
|
2928 |
case 0x010000000000ULL: |
2929 |
size = 0xF;
|
2930 |
break;
|
2931 |
#endif
|
2932 |
default:
|
2933 |
size = -1;
|
2934 |
break;
|
2935 |
} |
2936 |
|
2937 |
return size;
|
2938 |
} |
2939 |
|
2940 |
/* Helpers for 4xx TLB management */
|
2941 |
target_ulong helper_4xx_tlbre_lo (target_ulong entry) |
2942 |
{ |
2943 |
ppcemb_tlb_t *tlb; |
2944 |
target_ulong ret; |
2945 |
int size;
|
2946 |
|
2947 |
entry &= 0x3F;
|
2948 |
tlb = &env->tlb[entry].tlbe; |
2949 |
ret = tlb->EPN; |
2950 |
if (tlb->prot & PAGE_VALID)
|
2951 |
ret |= 0x400;
|
2952 |
size = booke_page_size_to_tlb(tlb->size); |
2953 |
if (size < 0 || size > 0x7) |
2954 |
size = 1;
|
2955 |
ret |= size << 7;
|
2956 |
env->spr[SPR_40x_PID] = tlb->PID; |
2957 |
return ret;
|
2958 |
} |
2959 |
|
2960 |
target_ulong helper_4xx_tlbre_hi (target_ulong entry) |
2961 |
{ |
2962 |
ppcemb_tlb_t *tlb; |
2963 |
target_ulong ret; |
2964 |
|
2965 |
entry &= 0x3F;
|
2966 |
tlb = &env->tlb[entry].tlbe; |
2967 |
ret = tlb->RPN; |
2968 |
if (tlb->prot & PAGE_EXEC)
|
2969 |
ret |= 0x200;
|
2970 |
if (tlb->prot & PAGE_WRITE)
|
2971 |
ret |= 0x100;
|
2972 |
return ret;
|
2973 |
} |
2974 |
|
2975 |
void helper_4xx_tlbwe_hi (target_ulong entry, target_ulong val)
|
2976 |
{ |
2977 |
ppcemb_tlb_t *tlb; |
2978 |
target_ulong page, end; |
2979 |
|
2980 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2981 |
if (loglevel != 0) { |
2982 |
fprintf(logfile, "%s entry %d val " ADDRX "\n", __func__, (int)entry, val); |
2983 |
} |
2984 |
#endif
|
2985 |
entry &= 0x3F;
|
2986 |
tlb = &env->tlb[entry].tlbe; |
2987 |
/* Invalidate previous TLB (if it's valid) */
|
2988 |
if (tlb->prot & PAGE_VALID) {
|
2989 |
end = tlb->EPN + tlb->size; |
2990 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2991 |
if (loglevel != 0) { |
2992 |
fprintf(logfile, "%s: invalidate old TLB %d start " ADDRX
|
2993 |
" end " ADDRX "\n", __func__, (int)entry, tlb->EPN, end); |
2994 |
} |
2995 |
#endif
|
2996 |
for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
|
2997 |
tlb_flush_page(env, page); |
2998 |
} |
2999 |
tlb->size = booke_tlb_to_page_size((val >> 7) & 0x7); |
3000 |
/* We cannot handle TLB size < TARGET_PAGE_SIZE.
|
3001 |
* If this ever occurs, one should use the ppcemb target instead
|
3002 |
* of the ppc or ppc64 one
|
3003 |
*/
|
3004 |
if ((val & 0x40) && tlb->size < TARGET_PAGE_SIZE) { |
3005 |
cpu_abort(env, "TLB size " TARGET_FMT_lu " < %u " |
3006 |
"are not supported (%d)\n",
|
3007 |
tlb->size, TARGET_PAGE_SIZE, (int)((val >> 7) & 0x7)); |
3008 |
} |
3009 |
tlb->EPN = val & ~(tlb->size - 1);
|
3010 |
if (val & 0x40) |
3011 |
tlb->prot |= PAGE_VALID; |
3012 |
else
|
3013 |
tlb->prot &= ~PAGE_VALID; |
3014 |
if (val & 0x20) { |
3015 |
/* XXX: TO BE FIXED */
|
3016 |
cpu_abort(env, "Little-endian TLB entries are not supported by now\n");
|
3017 |
} |
3018 |
tlb->PID = env->spr[SPR_40x_PID]; /* PID */
|
3019 |
tlb->attr = val & 0xFF;
|
3020 |
#if defined (DEBUG_SOFTWARE_TLB)
|
3021 |
if (loglevel != 0) { |
3022 |
fprintf(logfile, "%s: set up TLB %d RPN " PADDRX " EPN " ADDRX |
3023 |
" size " ADDRX " prot %c%c%c%c PID %d\n", __func__, |
3024 |
(int)entry, tlb->RPN, tlb->EPN, tlb->size,
|
3025 |
tlb->prot & PAGE_READ ? 'r' : '-', |
3026 |
tlb->prot & PAGE_WRITE ? 'w' : '-', |
3027 |
tlb->prot & PAGE_EXEC ? 'x' : '-', |
3028 |
tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID); |
3029 |
} |
3030 |
#endif
|
3031 |
/* Invalidate new TLB (if valid) */
|
3032 |
if (tlb->prot & PAGE_VALID) {
|
3033 |
end = tlb->EPN + tlb->size; |
3034 |
#if defined (DEBUG_SOFTWARE_TLB)
|
3035 |
if (loglevel != 0) { |
3036 |
fprintf(logfile, "%s: invalidate TLB %d start " ADDRX
|
3037 |
" end " ADDRX "\n", __func__, (int)entry, tlb->EPN, end); |
3038 |
} |
3039 |
#endif
|
3040 |
for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
|
3041 |
tlb_flush_page(env, page); |
3042 |
} |
3043 |
} |
3044 |
|
3045 |
void helper_4xx_tlbwe_lo (target_ulong entry, target_ulong val)
|
3046 |
{ |
3047 |
ppcemb_tlb_t *tlb; |
3048 |
|
3049 |
#if defined (DEBUG_SOFTWARE_TLB)
|
3050 |
if (loglevel != 0) { |
3051 |
fprintf(logfile, "%s entry %i val " ADDRX "\n", __func__, (int)entry, val); |
3052 |
} |
3053 |
#endif
|
3054 |
entry &= 0x3F;
|
3055 |
tlb = &env->tlb[entry].tlbe; |
3056 |
tlb->RPN = val & 0xFFFFFC00;
|
3057 |
tlb->prot = PAGE_READ; |
3058 |
if (val & 0x200) |
3059 |
tlb->prot |= PAGE_EXEC; |
3060 |
if (val & 0x100) |
3061 |
tlb->prot |= PAGE_WRITE; |
3062 |
#if defined (DEBUG_SOFTWARE_TLB)
|
3063 |
if (loglevel != 0) { |
3064 |
fprintf(logfile, "%s: set up TLB %d RPN " PADDRX " EPN " ADDRX |
3065 |
" size " ADDRX " prot %c%c%c%c PID %d\n", __func__, |
3066 |
(int)entry, tlb->RPN, tlb->EPN, tlb->size,
|
3067 |
tlb->prot & PAGE_READ ? 'r' : '-', |
3068 |
tlb->prot & PAGE_WRITE ? 'w' : '-', |
3069 |
tlb->prot & PAGE_EXEC ? 'x' : '-', |
3070 |
tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID); |
3071 |
} |
3072 |
#endif
|
3073 |
} |
3074 |
|
3075 |
target_ulong helper_4xx_tlbsx (target_ulong address) |
3076 |
{ |
3077 |
return ppcemb_tlb_search(env, address, env->spr[SPR_40x_PID]);
|
3078 |
} |
3079 |
|
3080 |
/* PowerPC 440 TLB management */
|
3081 |
void helper_440_tlbwe (uint32_t word, target_ulong entry, target_ulong value)
|
3082 |
{ |
3083 |
ppcemb_tlb_t *tlb; |
3084 |
target_ulong EPN, RPN, size; |
3085 |
int do_flush_tlbs;
|
3086 |
|
3087 |
#if defined (DEBUG_SOFTWARE_TLB)
|
3088 |
if (loglevel != 0) { |
3089 |
fprintf(logfile, "%s word %d entry %d value " ADDRX "\n", |
3090 |
__func__, word, (int)entry, value);
|
3091 |
} |
3092 |
#endif
|
3093 |
do_flush_tlbs = 0;
|
3094 |
entry &= 0x3F;
|
3095 |
tlb = &env->tlb[entry].tlbe; |
3096 |
switch (word) {
|
3097 |
default:
|
3098 |
/* Just here to please gcc */
|
3099 |
case 0: |
3100 |
EPN = value & 0xFFFFFC00;
|
3101 |
if ((tlb->prot & PAGE_VALID) && EPN != tlb->EPN)
|
3102 |
do_flush_tlbs = 1;
|
3103 |
tlb->EPN = EPN; |
3104 |
size = booke_tlb_to_page_size((value >> 4) & 0xF); |
3105 |
if ((tlb->prot & PAGE_VALID) && tlb->size < size)
|
3106 |
do_flush_tlbs = 1;
|
3107 |
tlb->size = size; |
3108 |
tlb->attr &= ~0x1;
|
3109 |
tlb->attr |= (value >> 8) & 1; |
3110 |
if (value & 0x200) { |
3111 |
tlb->prot |= PAGE_VALID; |
3112 |
} else {
|
3113 |
if (tlb->prot & PAGE_VALID) {
|
3114 |
tlb->prot &= ~PAGE_VALID; |
3115 |
do_flush_tlbs = 1;
|
3116 |
} |
3117 |
} |
3118 |
tlb->PID = env->spr[SPR_440_MMUCR] & 0x000000FF;
|
3119 |
if (do_flush_tlbs)
|
3120 |
tlb_flush(env, 1);
|
3121 |
break;
|
3122 |
case 1: |
3123 |
RPN = value & 0xFFFFFC0F;
|
3124 |
if ((tlb->prot & PAGE_VALID) && tlb->RPN != RPN)
|
3125 |
tlb_flush(env, 1);
|
3126 |
tlb->RPN = RPN; |
3127 |
break;
|
3128 |
case 2: |
3129 |
tlb->attr = (tlb->attr & 0x1) | (value & 0x0000FF00); |
3130 |
tlb->prot = tlb->prot & PAGE_VALID; |
3131 |
if (value & 0x1) |
3132 |
tlb->prot |= PAGE_READ << 4;
|
3133 |
if (value & 0x2) |
3134 |
tlb->prot |= PAGE_WRITE << 4;
|
3135 |
if (value & 0x4) |
3136 |
tlb->prot |= PAGE_EXEC << 4;
|
3137 |
if (value & 0x8) |
3138 |
tlb->prot |= PAGE_READ; |
3139 |
if (value & 0x10) |
3140 |
tlb->prot |= PAGE_WRITE; |
3141 |
if (value & 0x20) |
3142 |
tlb->prot |= PAGE_EXEC; |
3143 |
break;
|
3144 |
} |
3145 |
} |
3146 |
|
3147 |
target_ulong helper_440_tlbre (uint32_t word, target_ulong entry) |
3148 |
{ |
3149 |
ppcemb_tlb_t *tlb; |
3150 |
target_ulong ret; |
3151 |
int size;
|
3152 |
|
3153 |
entry &= 0x3F;
|
3154 |
tlb = &env->tlb[entry].tlbe; |
3155 |
switch (word) {
|
3156 |
default:
|
3157 |
/* Just here to please gcc */
|
3158 |
case 0: |
3159 |
ret = tlb->EPN; |
3160 |
size = booke_page_size_to_tlb(tlb->size); |
3161 |
if (size < 0 || size > 0xF) |
3162 |
size = 1;
|
3163 |
ret |= size << 4;
|
3164 |
if (tlb->attr & 0x1) |
3165 |
ret |= 0x100;
|
3166 |
if (tlb->prot & PAGE_VALID)
|
3167 |
ret |= 0x200;
|
3168 |
env->spr[SPR_440_MMUCR] &= ~0x000000FF;
|
3169 |
env->spr[SPR_440_MMUCR] |= tlb->PID; |
3170 |
break;
|
3171 |
case 1: |
3172 |
ret = tlb->RPN; |
3173 |
break;
|
3174 |
case 2: |
3175 |
ret = tlb->attr & ~0x1;
|
3176 |
if (tlb->prot & (PAGE_READ << 4)) |
3177 |
ret |= 0x1;
|
3178 |
if (tlb->prot & (PAGE_WRITE << 4)) |
3179 |
ret |= 0x2;
|
3180 |
if (tlb->prot & (PAGE_EXEC << 4)) |
3181 |
ret |= 0x4;
|
3182 |
if (tlb->prot & PAGE_READ)
|
3183 |
ret |= 0x8;
|
3184 |
if (tlb->prot & PAGE_WRITE)
|
3185 |
ret |= 0x10;
|
3186 |
if (tlb->prot & PAGE_EXEC)
|
3187 |
ret |= 0x20;
|
3188 |
break;
|
3189 |
} |
3190 |
return ret;
|
3191 |
} |
3192 |
|
3193 |
target_ulong helper_440_tlbsx (target_ulong address) |
3194 |
{ |
3195 |
return ppcemb_tlb_search(env, address, env->spr[SPR_440_MMUCR] & 0xFF); |
3196 |
} |
3197 |
|
3198 |
#endif /* !CONFIG_USER_ONLY */ |