root / target-ppc / op_helper.c @ 1ffc346f
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/*
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* PowerPC emulation helpers for qemu.
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*
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* Copyright (c) 2003-2007 Jocelyn Mayer
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "exec.h" |
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#include "host-utils.h" |
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#include "helper_regs.h" |
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#include "op_helper.h" |
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#define MEMSUFFIX _raw
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#include "op_helper.h" |
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#include "op_helper_mem.h" |
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#if !defined(CONFIG_USER_ONLY)
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#define MEMSUFFIX _user
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#include "op_helper.h" |
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#include "op_helper_mem.h" |
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#define MEMSUFFIX _kernel
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#include "op_helper.h" |
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#include "op_helper_mem.h" |
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#define MEMSUFFIX _hypv
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#include "op_helper.h" |
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#include "op_helper_mem.h" |
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#endif
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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 do_raise_exception_err (uint32_t exception, int 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 do_raise_exception (uint32_t exception)
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{ |
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do_raise_exception_err(exception, 0);
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} |
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void cpu_dump_EA (target_ulong EA);
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void do_print_mem_EA (target_ulong EA)
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{ |
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cpu_dump_EA(EA); |
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} |
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/*****************************************************************************/
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/* Registers load and stores */
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void do_load_cr (void) |
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{ |
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T0 = (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 do_store_cr (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] = (T0 >> (sh * 4)) & 0xFUL; |
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} |
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} |
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#if defined(TARGET_PPC64)
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void do_store_pri (int prio) |
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{ |
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env->spr[SPR_PPR] &= ~0x001C000000000000ULL;
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env->spr[SPR_PPR] |= ((uint64_t)prio & 0x7) << 50; |
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} |
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#endif
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target_ulong ppc_load_dump_spr (int 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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return env->spr[sprn];
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} |
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void ppc_store_dump_spr (int sprn, target_ulong val) |
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{ |
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if (loglevel != 0) { |
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fprintf(logfile, "Write SPR %d %03x => " ADDRX " <= " ADDRX "\n", |
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sprn, sprn, env->spr[sprn], val); |
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} |
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env->spr[sprn] = val; |
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} |
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/*****************************************************************************/
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/* Fixed point operations helpers */
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void do_adde (void) |
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{ |
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T2 = T0; |
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T0 += T1 + xer_ca; |
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if (likely(!((uint32_t)T0 < (uint32_t)T2 ||
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(xer_ca == 1 && (uint32_t)T0 == (uint32_t)T2)))) {
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xer_ca = 0;
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} else {
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xer_ca = 1;
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} |
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} |
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#if defined(TARGET_PPC64)
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void do_adde_64 (void) |
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{ |
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T2 = T0; |
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T0 += T1 + xer_ca; |
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if (likely(!((uint64_t)T0 < (uint64_t)T2 ||
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(xer_ca == 1 && (uint64_t)T0 == (uint64_t)T2)))) {
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xer_ca = 0;
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} else {
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xer_ca = 1;
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} |
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} |
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#endif
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void do_addmeo (void) |
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{ |
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T1 = T0; |
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T0 += xer_ca + (-1);
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xer_ov = ((uint32_t)T1 & ((uint32_t)T1 ^ (uint32_t)T0)) >> 31;
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xer_so |= xer_ov; |
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if (likely(T1 != 0)) |
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xer_ca = 1;
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else
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xer_ca = 0;
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} |
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#if defined(TARGET_PPC64)
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void do_addmeo_64 (void) |
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{ |
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T1 = T0; |
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T0 += xer_ca + (-1);
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xer_ov = ((uint64_t)T1 & ((uint64_t)T1 ^ (uint64_t)T0)) >> 63;
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xer_so |= xer_ov; |
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if (likely(T1 != 0)) |
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xer_ca = 1;
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else
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xer_ca = 0;
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} |
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#endif
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void do_divwo (void) |
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{ |
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if (likely(!(((int32_t)T0 == INT32_MIN && (int32_t)T1 == (int32_t)-1) || |
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(int32_t)T1 == 0))) {
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xer_ov = 0;
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T0 = (int32_t)T0 / (int32_t)T1; |
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} else {
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xer_ov = 1;
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T0 = UINT32_MAX * ((uint32_t)T0 >> 31);
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} |
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xer_so |= xer_ov; |
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} |
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#if defined(TARGET_PPC64)
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void do_divdo (void) |
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{ |
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if (likely(!(((int64_t)T0 == INT64_MIN && (int64_t)T1 == (int64_t)-1LL) || |
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(int64_t)T1 == 0))) {
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xer_ov = 0;
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T0 = (int64_t)T0 / (int64_t)T1; |
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} else {
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xer_ov = 1;
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T0 = UINT64_MAX * ((uint64_t)T0 >> 63);
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} |
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xer_so |= xer_ov; |
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} |
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#endif
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void do_divwuo (void) |
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{ |
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if (likely((uint32_t)T1 != 0)) { |
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xer_ov = 0;
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T0 = (uint32_t)T0 / (uint32_t)T1; |
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} else {
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xer_ov = 1;
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xer_so = 1;
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T0 = 0;
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} |
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} |
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#if defined(TARGET_PPC64)
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void do_divduo (void) |
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{ |
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if (likely((uint64_t)T1 != 0)) { |
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xer_ov = 0;
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T0 = (uint64_t)T0 / (uint64_t)T1; |
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} else {
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xer_ov = 1;
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xer_so = 1;
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T0 = 0;
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} |
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} |
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#endif
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void do_mullwo (void) |
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{ |
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int64_t res = (int64_t)T0 * (int64_t)T1; |
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if (likely((int32_t)res == res)) {
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xer_ov = 0;
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} else {
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xer_ov = 1;
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xer_so = 1;
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} |
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T0 = (int32_t)res; |
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} |
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#if defined(TARGET_PPC64)
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void do_mulldo (void) |
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{ |
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int64_t th; |
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uint64_t tl; |
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muls64(&tl, &th, T0, T1); |
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T0 = (int64_t)tl; |
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/* If th != 0 && th != -1, then we had an overflow */
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if (likely((uint64_t)(th + 1) <= 1)) { |
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xer_ov = 0;
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} else {
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xer_ov = 1;
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} |
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xer_so |= xer_ov; |
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} |
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#endif
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void do_nego (void) |
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{ |
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if (likely((int32_t)T0 != INT32_MIN)) {
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xer_ov = 0;
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T0 = -(int32_t)T0; |
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} else {
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xer_ov = 1;
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xer_so = 1;
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} |
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} |
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#if defined(TARGET_PPC64)
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void do_nego_64 (void) |
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{ |
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if (likely((int64_t)T0 != INT64_MIN)) {
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xer_ov = 0;
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T0 = -(int64_t)T0; |
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} else {
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xer_ov = 1;
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xer_so = 1;
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} |
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} |
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#endif
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void do_subfe (void) |
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{ |
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T0 = T1 + ~T0 + xer_ca; |
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if (likely((uint32_t)T0 >= (uint32_t)T1 &&
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(xer_ca == 0 || (uint32_t)T0 != (uint32_t)T1))) {
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xer_ca = 0;
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} else {
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xer_ca = 1;
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} |
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} |
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#if defined(TARGET_PPC64)
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void do_subfe_64 (void) |
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{ |
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T0 = T1 + ~T0 + xer_ca; |
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if (likely((uint64_t)T0 >= (uint64_t)T1 &&
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(xer_ca == 0 || (uint64_t)T0 != (uint64_t)T1))) {
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xer_ca = 0;
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} else {
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xer_ca = 1;
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} |
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} |
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#endif
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void do_subfmeo (void) |
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{ |
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T1 = T0; |
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T0 = ~T0 + xer_ca - 1;
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xer_ov = ((uint32_t)~T1 & ((uint32_t)~T1 ^ (uint32_t)T0)) >> 31;
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xer_so |= xer_ov; |
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if (likely((uint32_t)T1 != UINT32_MAX))
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xer_ca = 1;
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else
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xer_ca = 0;
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} |
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#if defined(TARGET_PPC64)
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void do_subfmeo_64 (void) |
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{ |
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T1 = T0; |
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T0 = ~T0 + xer_ca - 1;
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xer_ov = ((uint64_t)~T1 & ((uint64_t)~T1 ^ (uint64_t)T0)) >> 63;
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xer_so |= xer_ov; |
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if (likely((uint64_t)T1 != UINT64_MAX))
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xer_ca = 1;
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else
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xer_ca = 0;
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} |
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#endif
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void do_subfzeo (void) |
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{ |
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T1 = T0; |
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T0 = ~T0 + xer_ca; |
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xer_ov = (((uint32_t)~T1 ^ UINT32_MAX) & |
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((uint32_t)(~T1) ^ (uint32_t)T0)) >> 31;
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xer_so |= xer_ov; |
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if (likely((uint32_t)T0 >= (uint32_t)~T1)) {
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xer_ca = 0;
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} else {
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xer_ca = 1;
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} |
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} |
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#if defined(TARGET_PPC64)
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void do_subfzeo_64 (void) |
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{ |
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T1 = T0; |
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T0 = ~T0 + xer_ca; |
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xer_ov = (((uint64_t)~T1 ^ UINT64_MAX) & |
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((uint64_t)(~T1) ^ (uint64_t)T0)) >> 63;
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xer_so |= xer_ov; |
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if (likely((uint64_t)T0 >= (uint64_t)~T1)) {
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xer_ca = 0;
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} else {
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xer_ca = 1;
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} |
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} |
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#endif
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void do_cntlzw (void) |
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{ |
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T0 = clz32(T0); |
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} |
367 |
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#if defined(TARGET_PPC64)
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void do_cntlzd (void) |
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{ |
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T0 = clz64(T0); |
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} |
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#endif
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/* shift right arithmetic helper */
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void do_sraw (void) |
377 |
{ |
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int32_t ret; |
379 |
|
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if (likely(!(T1 & 0x20UL))) { |
381 |
if (likely((uint32_t)T1 != 0)) { |
382 |
ret = (int32_t)T0 >> (T1 & 0x1fUL);
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if (likely(ret >= 0 || ((int32_t)T0 & ((1 << T1) - 1)) == 0)) { |
384 |
xer_ca = 0;
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} else {
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xer_ca = 1;
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} |
388 |
} else {
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ret = T0; |
390 |
xer_ca = 0;
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} |
392 |
} else {
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ret = UINT32_MAX * ((uint32_t)T0 >> 31);
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394 |
if (likely(ret >= 0 || ((uint32_t)T0 & ~0x80000000UL) == 0)) { |
395 |
xer_ca = 0;
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} else {
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397 |
xer_ca = 1;
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398 |
} |
399 |
} |
400 |
T0 = ret; |
401 |
} |
402 |
|
403 |
#if defined(TARGET_PPC64)
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404 |
void do_srad (void) |
405 |
{ |
406 |
int64_t ret; |
407 |
|
408 |
if (likely(!(T1 & 0x40UL))) { |
409 |
if (likely((uint64_t)T1 != 0)) { |
410 |
ret = (int64_t)T0 >> (T1 & 0x3FUL);
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411 |
if (likely(ret >= 0 || ((int64_t)T0 & ((1 << T1) - 1)) == 0)) { |
412 |
xer_ca = 0;
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413 |
} else {
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414 |
xer_ca = 1;
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415 |
} |
416 |
} else {
|
417 |
ret = T0; |
418 |
xer_ca = 0;
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419 |
} |
420 |
} else {
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421 |
ret = UINT64_MAX * ((uint64_t)T0 >> 63);
|
422 |
if (likely(ret >= 0 || ((uint64_t)T0 & ~0x8000000000000000ULL) == 0)) { |
423 |
xer_ca = 0;
|
424 |
} else {
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425 |
xer_ca = 1;
|
426 |
} |
427 |
} |
428 |
T0 = ret; |
429 |
} |
430 |
#endif
|
431 |
|
432 |
void do_popcntb (void) |
433 |
{ |
434 |
uint32_t ret; |
435 |
int i;
|
436 |
|
437 |
ret = 0;
|
438 |
for (i = 0; i < 32; i += 8) |
439 |
ret |= ctpop8((T0 >> i) & 0xFF) << i;
|
440 |
T0 = ret; |
441 |
} |
442 |
|
443 |
#if defined(TARGET_PPC64)
|
444 |
void do_popcntb_64 (void) |
445 |
{ |
446 |
uint64_t ret; |
447 |
int i;
|
448 |
|
449 |
ret = 0;
|
450 |
for (i = 0; i < 64; i += 8) |
451 |
ret |= ctpop8((T0 >> i) & 0xFF) << i;
|
452 |
T0 = ret; |
453 |
} |
454 |
#endif
|
455 |
|
456 |
/*****************************************************************************/
|
457 |
/* Floating point operations helpers */
|
458 |
static always_inline int fpisneg (float64 d) |
459 |
{ |
460 |
CPU_DoubleU u; |
461 |
|
462 |
u.d = d; |
463 |
|
464 |
return u.ll >> 63 != 0; |
465 |
} |
466 |
|
467 |
static always_inline int isden (float64 d) |
468 |
{ |
469 |
CPU_DoubleU u; |
470 |
|
471 |
u.d = d; |
472 |
|
473 |
return ((u.ll >> 52) & 0x7FF) == 0; |
474 |
} |
475 |
|
476 |
static always_inline int iszero (float64 d) |
477 |
{ |
478 |
CPU_DoubleU u; |
479 |
|
480 |
u.d = d; |
481 |
|
482 |
return (u.ll & ~0x8000000000000000ULL) == 0; |
483 |
} |
484 |
|
485 |
static always_inline int isinfinity (float64 d) |
486 |
{ |
487 |
CPU_DoubleU u; |
488 |
|
489 |
u.d = d; |
490 |
|
491 |
return ((u.ll >> 52) & 0x7FF) == 0x7FF && |
492 |
(u.ll & 0x000FFFFFFFFFFFFFULL) == 0; |
493 |
} |
494 |
|
495 |
#ifdef CONFIG_SOFTFLOAT
|
496 |
static always_inline int isfinite (float64 d) |
497 |
{ |
498 |
CPU_DoubleU u; |
499 |
|
500 |
u.d = d; |
501 |
|
502 |
return (((u.ll >> 52) & 0x7FF) != 0x7FF); |
503 |
} |
504 |
|
505 |
static always_inline int isnormal (float64 d) |
506 |
{ |
507 |
CPU_DoubleU u; |
508 |
|
509 |
u.d = d; |
510 |
|
511 |
uint32_t exp = (u.ll >> 52) & 0x7FF; |
512 |
return ((0 < exp) && (exp < 0x7FF)); |
513 |
} |
514 |
#endif
|
515 |
|
516 |
void do_compute_fprf (int set_fprf) |
517 |
{ |
518 |
int isneg;
|
519 |
|
520 |
isneg = fpisneg(FT0); |
521 |
if (unlikely(float64_is_nan(FT0))) {
|
522 |
if (float64_is_signaling_nan(FT0)) {
|
523 |
/* Signaling NaN: flags are undefined */
|
524 |
T0 = 0x00;
|
525 |
} else {
|
526 |
/* Quiet NaN */
|
527 |
T0 = 0x11;
|
528 |
} |
529 |
} else if (unlikely(isinfinity(FT0))) { |
530 |
/* +/- infinity */
|
531 |
if (isneg)
|
532 |
T0 = 0x09;
|
533 |
else
|
534 |
T0 = 0x05;
|
535 |
} else {
|
536 |
if (iszero(FT0)) {
|
537 |
/* +/- zero */
|
538 |
if (isneg)
|
539 |
T0 = 0x12;
|
540 |
else
|
541 |
T0 = 0x02;
|
542 |
} else {
|
543 |
if (isden(FT0)) {
|
544 |
/* Denormalized numbers */
|
545 |
T0 = 0x10;
|
546 |
} else {
|
547 |
/* Normalized numbers */
|
548 |
T0 = 0x00;
|
549 |
} |
550 |
if (isneg) {
|
551 |
T0 |= 0x08;
|
552 |
} else {
|
553 |
T0 |= 0x04;
|
554 |
} |
555 |
} |
556 |
} |
557 |
if (set_fprf) {
|
558 |
/* We update FPSCR_FPRF */
|
559 |
env->fpscr &= ~(0x1F << FPSCR_FPRF);
|
560 |
env->fpscr |= T0 << FPSCR_FPRF; |
561 |
} |
562 |
/* We just need fpcc to update Rc1 */
|
563 |
T0 &= 0xF;
|
564 |
} |
565 |
|
566 |
/* Floating-point invalid operations exception */
|
567 |
static always_inline void fload_invalid_op_excp (int op) |
568 |
{ |
569 |
int ve;
|
570 |
|
571 |
ve = fpscr_ve; |
572 |
if (op & POWERPC_EXCP_FP_VXSNAN) {
|
573 |
/* Operation on signaling NaN */
|
574 |
env->fpscr |= 1 << FPSCR_VXSNAN;
|
575 |
} |
576 |
if (op & POWERPC_EXCP_FP_VXSOFT) {
|
577 |
/* Software-defined condition */
|
578 |
env->fpscr |= 1 << FPSCR_VXSOFT;
|
579 |
} |
580 |
switch (op & ~(POWERPC_EXCP_FP_VXSOFT | POWERPC_EXCP_FP_VXSNAN)) {
|
581 |
case POWERPC_EXCP_FP_VXISI:
|
582 |
/* Magnitude subtraction of infinities */
|
583 |
env->fpscr |= 1 << FPSCR_VXISI;
|
584 |
goto update_arith;
|
585 |
case POWERPC_EXCP_FP_VXIDI:
|
586 |
/* Division of infinity by infinity */
|
587 |
env->fpscr |= 1 << FPSCR_VXIDI;
|
588 |
goto update_arith;
|
589 |
case POWERPC_EXCP_FP_VXZDZ:
|
590 |
/* Division of zero by zero */
|
591 |
env->fpscr |= 1 << FPSCR_VXZDZ;
|
592 |
goto update_arith;
|
593 |
case POWERPC_EXCP_FP_VXIMZ:
|
594 |
/* Multiplication of zero by infinity */
|
595 |
env->fpscr |= 1 << FPSCR_VXIMZ;
|
596 |
goto update_arith;
|
597 |
case POWERPC_EXCP_FP_VXVC:
|
598 |
/* Ordered comparison of NaN */
|
599 |
env->fpscr |= 1 << FPSCR_VXVC;
|
600 |
env->fpscr &= ~(0xF << FPSCR_FPCC);
|
601 |
env->fpscr |= 0x11 << FPSCR_FPCC;
|
602 |
/* We must update the target FPR before raising the exception */
|
603 |
if (ve != 0) { |
604 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
605 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_VXVC; |
606 |
/* Update the floating-point enabled exception summary */
|
607 |
env->fpscr |= 1 << FPSCR_FEX;
|
608 |
/* Exception is differed */
|
609 |
ve = 0;
|
610 |
} |
611 |
break;
|
612 |
case POWERPC_EXCP_FP_VXSQRT:
|
613 |
/* Square root of a negative number */
|
614 |
env->fpscr |= 1 << FPSCR_VXSQRT;
|
615 |
update_arith:
|
616 |
env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI)); |
617 |
if (ve == 0) { |
618 |
/* Set the result to quiet NaN */
|
619 |
FT0 = UINT64_MAX; |
620 |
env->fpscr &= ~(0xF << FPSCR_FPCC);
|
621 |
env->fpscr |= 0x11 << FPSCR_FPCC;
|
622 |
} |
623 |
break;
|
624 |
case POWERPC_EXCP_FP_VXCVI:
|
625 |
/* Invalid conversion */
|
626 |
env->fpscr |= 1 << FPSCR_VXCVI;
|
627 |
env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI)); |
628 |
if (ve == 0) { |
629 |
/* Set the result to quiet NaN */
|
630 |
FT0 = UINT64_MAX; |
631 |
env->fpscr &= ~(0xF << FPSCR_FPCC);
|
632 |
env->fpscr |= 0x11 << FPSCR_FPCC;
|
633 |
} |
634 |
break;
|
635 |
} |
636 |
/* Update the floating-point invalid operation summary */
|
637 |
env->fpscr |= 1 << FPSCR_VX;
|
638 |
/* Update the floating-point exception summary */
|
639 |
env->fpscr |= 1 << FPSCR_FX;
|
640 |
if (ve != 0) { |
641 |
/* Update the floating-point enabled exception summary */
|
642 |
env->fpscr |= 1 << FPSCR_FEX;
|
643 |
if (msr_fe0 != 0 || msr_fe1 != 0) |
644 |
do_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_FP | op); |
645 |
} |
646 |
} |
647 |
|
648 |
static always_inline void float_zero_divide_excp (void) |
649 |
{ |
650 |
CPU_DoubleU u0, u1; |
651 |
|
652 |
env->fpscr |= 1 << FPSCR_ZX;
|
653 |
env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI)); |
654 |
/* Update the floating-point exception summary */
|
655 |
env->fpscr |= 1 << FPSCR_FX;
|
656 |
if (fpscr_ze != 0) { |
657 |
/* Update the floating-point enabled exception summary */
|
658 |
env->fpscr |= 1 << FPSCR_FEX;
|
659 |
if (msr_fe0 != 0 || msr_fe1 != 0) { |
660 |
do_raise_exception_err(POWERPC_EXCP_PROGRAM, |
661 |
POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX); |
662 |
} |
663 |
} else {
|
664 |
/* Set the result to infinity */
|
665 |
u0.d = FT0; |
666 |
u1.d = FT1; |
667 |
u0.ll = ((u0.ll ^ u1.ll) & 0x8000000000000000ULL);
|
668 |
u0.ll |= 0x7FFULL << 52; |
669 |
FT0 = u0.d; |
670 |
} |
671 |
} |
672 |
|
673 |
static always_inline void float_overflow_excp (void) |
674 |
{ |
675 |
env->fpscr |= 1 << FPSCR_OX;
|
676 |
/* Update the floating-point exception summary */
|
677 |
env->fpscr |= 1 << FPSCR_FX;
|
678 |
if (fpscr_oe != 0) { |
679 |
/* XXX: should adjust the result */
|
680 |
/* Update the floating-point enabled exception summary */
|
681 |
env->fpscr |= 1 << FPSCR_FEX;
|
682 |
/* We must update the target FPR before raising the exception */
|
683 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
684 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX; |
685 |
} else {
|
686 |
env->fpscr |= 1 << FPSCR_XX;
|
687 |
env->fpscr |= 1 << FPSCR_FI;
|
688 |
} |
689 |
} |
690 |
|
691 |
static always_inline void float_underflow_excp (void) |
692 |
{ |
693 |
env->fpscr |= 1 << FPSCR_UX;
|
694 |
/* Update the floating-point exception summary */
|
695 |
env->fpscr |= 1 << FPSCR_FX;
|
696 |
if (fpscr_ue != 0) { |
697 |
/* XXX: should adjust the result */
|
698 |
/* Update the floating-point enabled exception summary */
|
699 |
env->fpscr |= 1 << FPSCR_FEX;
|
700 |
/* We must update the target FPR before raising the exception */
|
701 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
702 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX; |
703 |
} |
704 |
} |
705 |
|
706 |
static always_inline void float_inexact_excp (void) |
707 |
{ |
708 |
env->fpscr |= 1 << FPSCR_XX;
|
709 |
/* Update the floating-point exception summary */
|
710 |
env->fpscr |= 1 << FPSCR_FX;
|
711 |
if (fpscr_xe != 0) { |
712 |
/* Update the floating-point enabled exception summary */
|
713 |
env->fpscr |= 1 << FPSCR_FEX;
|
714 |
/* We must update the target FPR before raising the exception */
|
715 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
716 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX; |
717 |
} |
718 |
} |
719 |
|
720 |
static always_inline void fpscr_set_rounding_mode (void) |
721 |
{ |
722 |
int rnd_type;
|
723 |
|
724 |
/* Set rounding mode */
|
725 |
switch (fpscr_rn) {
|
726 |
case 0: |
727 |
/* Best approximation (round to nearest) */
|
728 |
rnd_type = float_round_nearest_even; |
729 |
break;
|
730 |
case 1: |
731 |
/* Smaller magnitude (round toward zero) */
|
732 |
rnd_type = float_round_to_zero; |
733 |
break;
|
734 |
case 2: |
735 |
/* Round toward +infinite */
|
736 |
rnd_type = float_round_up; |
737 |
break;
|
738 |
default:
|
739 |
case 3: |
740 |
/* Round toward -infinite */
|
741 |
rnd_type = float_round_down; |
742 |
break;
|
743 |
} |
744 |
set_float_rounding_mode(rnd_type, &env->fp_status); |
745 |
} |
746 |
|
747 |
void do_fpscr_setbit (int bit) |
748 |
{ |
749 |
int prev;
|
750 |
|
751 |
prev = (env->fpscr >> bit) & 1;
|
752 |
env->fpscr |= 1 << bit;
|
753 |
if (prev == 0) { |
754 |
switch (bit) {
|
755 |
case FPSCR_VX:
|
756 |
env->fpscr |= 1 << FPSCR_FX;
|
757 |
if (fpscr_ve)
|
758 |
goto raise_ve;
|
759 |
case FPSCR_OX:
|
760 |
env->fpscr |= 1 << FPSCR_FX;
|
761 |
if (fpscr_oe)
|
762 |
goto raise_oe;
|
763 |
break;
|
764 |
case FPSCR_UX:
|
765 |
env->fpscr |= 1 << FPSCR_FX;
|
766 |
if (fpscr_ue)
|
767 |
goto raise_ue;
|
768 |
break;
|
769 |
case FPSCR_ZX:
|
770 |
env->fpscr |= 1 << FPSCR_FX;
|
771 |
if (fpscr_ze)
|
772 |
goto raise_ze;
|
773 |
break;
|
774 |
case FPSCR_XX:
|
775 |
env->fpscr |= 1 << FPSCR_FX;
|
776 |
if (fpscr_xe)
|
777 |
goto raise_xe;
|
778 |
break;
|
779 |
case FPSCR_VXSNAN:
|
780 |
case FPSCR_VXISI:
|
781 |
case FPSCR_VXIDI:
|
782 |
case FPSCR_VXZDZ:
|
783 |
case FPSCR_VXIMZ:
|
784 |
case FPSCR_VXVC:
|
785 |
case FPSCR_VXSOFT:
|
786 |
case FPSCR_VXSQRT:
|
787 |
case FPSCR_VXCVI:
|
788 |
env->fpscr |= 1 << FPSCR_VX;
|
789 |
env->fpscr |= 1 << FPSCR_FX;
|
790 |
if (fpscr_ve != 0) |
791 |
goto raise_ve;
|
792 |
break;
|
793 |
case FPSCR_VE:
|
794 |
if (fpscr_vx != 0) { |
795 |
raise_ve:
|
796 |
env->error_code = POWERPC_EXCP_FP; |
797 |
if (fpscr_vxsnan)
|
798 |
env->error_code |= POWERPC_EXCP_FP_VXSNAN; |
799 |
if (fpscr_vxisi)
|
800 |
env->error_code |= POWERPC_EXCP_FP_VXISI; |
801 |
if (fpscr_vxidi)
|
802 |
env->error_code |= POWERPC_EXCP_FP_VXIDI; |
803 |
if (fpscr_vxzdz)
|
804 |
env->error_code |= POWERPC_EXCP_FP_VXZDZ; |
805 |
if (fpscr_vximz)
|
806 |
env->error_code |= POWERPC_EXCP_FP_VXIMZ; |
807 |
if (fpscr_vxvc)
|
808 |
env->error_code |= POWERPC_EXCP_FP_VXVC; |
809 |
if (fpscr_vxsoft)
|
810 |
env->error_code |= POWERPC_EXCP_FP_VXSOFT; |
811 |
if (fpscr_vxsqrt)
|
812 |
env->error_code |= POWERPC_EXCP_FP_VXSQRT; |
813 |
if (fpscr_vxcvi)
|
814 |
env->error_code |= POWERPC_EXCP_FP_VXCVI; |
815 |
goto raise_excp;
|
816 |
} |
817 |
break;
|
818 |
case FPSCR_OE:
|
819 |
if (fpscr_ox != 0) { |
820 |
raise_oe:
|
821 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX; |
822 |
goto raise_excp;
|
823 |
} |
824 |
break;
|
825 |
case FPSCR_UE:
|
826 |
if (fpscr_ux != 0) { |
827 |
raise_ue:
|
828 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX; |
829 |
goto raise_excp;
|
830 |
} |
831 |
break;
|
832 |
case FPSCR_ZE:
|
833 |
if (fpscr_zx != 0) { |
834 |
raise_ze:
|
835 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX; |
836 |
goto raise_excp;
|
837 |
} |
838 |
break;
|
839 |
case FPSCR_XE:
|
840 |
if (fpscr_xx != 0) { |
841 |
raise_xe:
|
842 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX; |
843 |
goto raise_excp;
|
844 |
} |
845 |
break;
|
846 |
case FPSCR_RN1:
|
847 |
case FPSCR_RN:
|
848 |
fpscr_set_rounding_mode(); |
849 |
break;
|
850 |
default:
|
851 |
break;
|
852 |
raise_excp:
|
853 |
/* Update the floating-point enabled exception summary */
|
854 |
env->fpscr |= 1 << FPSCR_FEX;
|
855 |
/* We have to update Rc1 before raising the exception */
|
856 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
857 |
break;
|
858 |
} |
859 |
} |
860 |
} |
861 |
|
862 |
#if defined(WORDS_BIGENDIAN)
|
863 |
#define WORD0 0 |
864 |
#define WORD1 1 |
865 |
#else
|
866 |
#define WORD0 1 |
867 |
#define WORD1 0 |
868 |
#endif
|
869 |
void do_store_fpscr (uint32_t mask)
|
870 |
{ |
871 |
/*
|
872 |
* We use only the 32 LSB of the incoming fpr
|
873 |
*/
|
874 |
CPU_DoubleU u; |
875 |
uint32_t prev, new; |
876 |
int i;
|
877 |
|
878 |
u.d = FT0; |
879 |
prev = env->fpscr; |
880 |
new = u.l.lower; |
881 |
new &= ~0x90000000;
|
882 |
new |= prev & 0x90000000;
|
883 |
for (i = 0; i < 7; i++) { |
884 |
if (mask & (1 << i)) { |
885 |
env->fpscr &= ~(0xF << (4 * i)); |
886 |
env->fpscr |= new & (0xF << (4 * i)); |
887 |
} |
888 |
} |
889 |
/* Update VX and FEX */
|
890 |
if (fpscr_ix != 0) |
891 |
env->fpscr |= 1 << FPSCR_VX;
|
892 |
else
|
893 |
env->fpscr &= ~(1 << FPSCR_VX);
|
894 |
if ((fpscr_ex & fpscr_eex) != 0) { |
895 |
env->fpscr |= 1 << FPSCR_FEX;
|
896 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
897 |
/* XXX: we should compute it properly */
|
898 |
env->error_code = POWERPC_EXCP_FP; |
899 |
} |
900 |
else
|
901 |
env->fpscr &= ~(1 << FPSCR_FEX);
|
902 |
fpscr_set_rounding_mode(); |
903 |
} |
904 |
#undef WORD0
|
905 |
#undef WORD1
|
906 |
|
907 |
#ifdef CONFIG_SOFTFLOAT
|
908 |
void do_float_check_status (void) |
909 |
{ |
910 |
if (env->exception_index == POWERPC_EXCP_PROGRAM &&
|
911 |
(env->error_code & POWERPC_EXCP_FP)) { |
912 |
/* Differred floating-point exception after target FPR update */
|
913 |
if (msr_fe0 != 0 || msr_fe1 != 0) |
914 |
do_raise_exception_err(env->exception_index, env->error_code); |
915 |
} else if (env->fp_status.float_exception_flags & float_flag_overflow) { |
916 |
float_overflow_excp(); |
917 |
} else if (env->fp_status.float_exception_flags & float_flag_underflow) { |
918 |
float_underflow_excp(); |
919 |
} else if (env->fp_status.float_exception_flags & float_flag_inexact) { |
920 |
float_inexact_excp(); |
921 |
} |
922 |
} |
923 |
#endif
|
924 |
|
925 |
#if USE_PRECISE_EMULATION
|
926 |
void do_fadd (void) |
927 |
{ |
928 |
if (unlikely(float64_is_signaling_nan(FT0) ||
|
929 |
float64_is_signaling_nan(FT1))) { |
930 |
/* sNaN addition */
|
931 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
932 |
} else if (likely(isfinite(FT0) || isfinite(FT1) || |
933 |
fpisneg(FT0) == fpisneg(FT1))) { |
934 |
FT0 = float64_add(FT0, FT1, &env->fp_status); |
935 |
} else {
|
936 |
/* Magnitude subtraction of infinities */
|
937 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
938 |
} |
939 |
} |
940 |
|
941 |
void do_fsub (void) |
942 |
{ |
943 |
if (unlikely(float64_is_signaling_nan(FT0) ||
|
944 |
float64_is_signaling_nan(FT1))) { |
945 |
/* sNaN subtraction */
|
946 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
947 |
} else if (likely(isfinite(FT0) || isfinite(FT1) || |
948 |
fpisneg(FT0) != fpisneg(FT1))) { |
949 |
FT0 = float64_sub(FT0, FT1, &env->fp_status); |
950 |
} else {
|
951 |
/* Magnitude subtraction of infinities */
|
952 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
953 |
} |
954 |
} |
955 |
|
956 |
void do_fmul (void) |
957 |
{ |
958 |
if (unlikely(float64_is_signaling_nan(FT0) ||
|
959 |
float64_is_signaling_nan(FT1))) { |
960 |
/* sNaN multiplication */
|
961 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
962 |
} else if (unlikely((isinfinity(FT0) && iszero(FT1)) || |
963 |
(iszero(FT0) && isinfinity(FT1)))) { |
964 |
/* Multiplication of zero by infinity */
|
965 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ); |
966 |
} else {
|
967 |
FT0 = float64_mul(FT0, FT1, &env->fp_status); |
968 |
} |
969 |
} |
970 |
|
971 |
void do_fdiv (void) |
972 |
{ |
973 |
if (unlikely(float64_is_signaling_nan(FT0) ||
|
974 |
float64_is_signaling_nan(FT1))) { |
975 |
/* sNaN division */
|
976 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
977 |
} else if (unlikely(isinfinity(FT0) && isinfinity(FT1))) { |
978 |
/* Division of infinity by infinity */
|
979 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXIDI); |
980 |
} else if (unlikely(iszero(FT1))) { |
981 |
if (iszero(FT0)) {
|
982 |
/* Division of zero by zero */
|
983 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXZDZ); |
984 |
} else {
|
985 |
/* Division by zero */
|
986 |
float_zero_divide_excp(); |
987 |
} |
988 |
} else {
|
989 |
FT0 = float64_div(FT0, FT1, &env->fp_status); |
990 |
} |
991 |
} |
992 |
#endif /* USE_PRECISE_EMULATION */ |
993 |
|
994 |
void do_fctiw (void) |
995 |
{ |
996 |
CPU_DoubleU p; |
997 |
|
998 |
if (unlikely(float64_is_signaling_nan(FT0))) {
|
999 |
/* sNaN conversion */
|
1000 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
1001 |
} else if (unlikely(float64_is_nan(FT0) || isinfinity(FT0))) { |
1002 |
/* qNan / infinity conversion */
|
1003 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1004 |
} else {
|
1005 |
p.ll = float64_to_int32(FT0, &env->fp_status); |
1006 |
#if USE_PRECISE_EMULATION
|
1007 |
/* XXX: higher bits are not supposed to be significant.
|
1008 |
* to make tests easier, return the same as a real PowerPC 750
|
1009 |
*/
|
1010 |
p.ll |= 0xFFF80000ULL << 32; |
1011 |
#endif
|
1012 |
FT0 = p.d; |
1013 |
} |
1014 |
} |
1015 |
|
1016 |
void do_fctiwz (void) |
1017 |
{ |
1018 |
CPU_DoubleU p; |
1019 |
|
1020 |
if (unlikely(float64_is_signaling_nan(FT0))) {
|
1021 |
/* sNaN conversion */
|
1022 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
1023 |
} else if (unlikely(float64_is_nan(FT0) || isinfinity(FT0))) { |
1024 |
/* qNan / infinity conversion */
|
1025 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1026 |
} else {
|
1027 |
p.ll = float64_to_int32_round_to_zero(FT0, &env->fp_status); |
1028 |
#if USE_PRECISE_EMULATION
|
1029 |
/* XXX: higher bits are not supposed to be significant.
|
1030 |
* to make tests easier, return the same as a real PowerPC 750
|
1031 |
*/
|
1032 |
p.ll |= 0xFFF80000ULL << 32; |
1033 |
#endif
|
1034 |
FT0 = p.d; |
1035 |
} |
1036 |
} |
1037 |
|
1038 |
#if defined(TARGET_PPC64)
|
1039 |
void do_fcfid (void) |
1040 |
{ |
1041 |
CPU_DoubleU p; |
1042 |
|
1043 |
p.d = FT0; |
1044 |
FT0 = int64_to_float64(p.ll, &env->fp_status); |
1045 |
} |
1046 |
|
1047 |
void do_fctid (void) |
1048 |
{ |
1049 |
CPU_DoubleU p; |
1050 |
|
1051 |
if (unlikely(float64_is_signaling_nan(FT0))) {
|
1052 |
/* sNaN conversion */
|
1053 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
1054 |
} else if (unlikely(float64_is_nan(FT0) || isinfinity(FT0))) { |
1055 |
/* qNan / infinity conversion */
|
1056 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1057 |
} else {
|
1058 |
p.ll = float64_to_int64(FT0, &env->fp_status); |
1059 |
FT0 = p.d; |
1060 |
} |
1061 |
} |
1062 |
|
1063 |
void do_fctidz (void) |
1064 |
{ |
1065 |
CPU_DoubleU p; |
1066 |
|
1067 |
if (unlikely(float64_is_signaling_nan(FT0))) {
|
1068 |
/* sNaN conversion */
|
1069 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
1070 |
} else if (unlikely(float64_is_nan(FT0) || isinfinity(FT0))) { |
1071 |
/* qNan / infinity conversion */
|
1072 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1073 |
} else {
|
1074 |
p.ll = float64_to_int64_round_to_zero(FT0, &env->fp_status); |
1075 |
FT0 = p.d; |
1076 |
} |
1077 |
} |
1078 |
|
1079 |
#endif
|
1080 |
|
1081 |
static always_inline void do_fri (int rounding_mode) |
1082 |
{ |
1083 |
if (unlikely(float64_is_signaling_nan(FT0))) {
|
1084 |
/* sNaN round */
|
1085 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
1086 |
} else if (unlikely(float64_is_nan(FT0) || isinfinity(FT0))) { |
1087 |
/* qNan / infinity round */
|
1088 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1089 |
} else {
|
1090 |
set_float_rounding_mode(rounding_mode, &env->fp_status); |
1091 |
FT0 = float64_round_to_int(FT0, &env->fp_status); |
1092 |
/* Restore rounding mode from FPSCR */
|
1093 |
fpscr_set_rounding_mode(); |
1094 |
} |
1095 |
} |
1096 |
|
1097 |
void do_frin (void) |
1098 |
{ |
1099 |
do_fri(float_round_nearest_even); |
1100 |
} |
1101 |
|
1102 |
void do_friz (void) |
1103 |
{ |
1104 |
do_fri(float_round_to_zero); |
1105 |
} |
1106 |
|
1107 |
void do_frip (void) |
1108 |
{ |
1109 |
do_fri(float_round_up); |
1110 |
} |
1111 |
|
1112 |
void do_frim (void) |
1113 |
{ |
1114 |
do_fri(float_round_down); |
1115 |
} |
1116 |
|
1117 |
#if USE_PRECISE_EMULATION
|
1118 |
void do_fmadd (void) |
1119 |
{ |
1120 |
if (unlikely(float64_is_signaling_nan(FT0) ||
|
1121 |
float64_is_signaling_nan(FT1) || |
1122 |
float64_is_signaling_nan(FT2))) { |
1123 |
/* sNaN operation */
|
1124 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1125 |
} else {
|
1126 |
#ifdef FLOAT128
|
1127 |
/* This is the way the PowerPC specification defines it */
|
1128 |
float128 ft0_128, ft1_128; |
1129 |
|
1130 |
ft0_128 = float64_to_float128(FT0, &env->fp_status); |
1131 |
ft1_128 = float64_to_float128(FT1, &env->fp_status); |
1132 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
1133 |
ft1_128 = float64_to_float128(FT2, &env->fp_status); |
1134 |
ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status); |
1135 |
FT0 = float128_to_float64(ft0_128, &env->fp_status); |
1136 |
#else
|
1137 |
/* This is OK on x86 hosts */
|
1138 |
FT0 = (FT0 * FT1) + FT2; |
1139 |
#endif
|
1140 |
} |
1141 |
} |
1142 |
|
1143 |
void do_fmsub (void) |
1144 |
{ |
1145 |
if (unlikely(float64_is_signaling_nan(FT0) ||
|
1146 |
float64_is_signaling_nan(FT1) || |
1147 |
float64_is_signaling_nan(FT2))) { |
1148 |
/* sNaN operation */
|
1149 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1150 |
} else {
|
1151 |
#ifdef FLOAT128
|
1152 |
/* This is the way the PowerPC specification defines it */
|
1153 |
float128 ft0_128, ft1_128; |
1154 |
|
1155 |
ft0_128 = float64_to_float128(FT0, &env->fp_status); |
1156 |
ft1_128 = float64_to_float128(FT1, &env->fp_status); |
1157 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
1158 |
ft1_128 = float64_to_float128(FT2, &env->fp_status); |
1159 |
ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status); |
1160 |
FT0 = float128_to_float64(ft0_128, &env->fp_status); |
1161 |
#else
|
1162 |
/* This is OK on x86 hosts */
|
1163 |
FT0 = (FT0 * FT1) - FT2; |
1164 |
#endif
|
1165 |
} |
1166 |
} |
1167 |
#endif /* USE_PRECISE_EMULATION */ |
1168 |
|
1169 |
void do_fnmadd (void) |
1170 |
{ |
1171 |
if (unlikely(float64_is_signaling_nan(FT0) ||
|
1172 |
float64_is_signaling_nan(FT1) || |
1173 |
float64_is_signaling_nan(FT2))) { |
1174 |
/* sNaN operation */
|
1175 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1176 |
} else {
|
1177 |
#if USE_PRECISE_EMULATION
|
1178 |
#ifdef FLOAT128
|
1179 |
/* This is the way the PowerPC specification defines it */
|
1180 |
float128 ft0_128, ft1_128; |
1181 |
|
1182 |
ft0_128 = float64_to_float128(FT0, &env->fp_status); |
1183 |
ft1_128 = float64_to_float128(FT1, &env->fp_status); |
1184 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
1185 |
ft1_128 = float64_to_float128(FT2, &env->fp_status); |
1186 |
ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status); |
1187 |
FT0 = float128_to_float64(ft0_128, &env->fp_status); |
1188 |
#else
|
1189 |
/* This is OK on x86 hosts */
|
1190 |
FT0 = (FT0 * FT1) + FT2; |
1191 |
#endif
|
1192 |
#else
|
1193 |
FT0 = float64_mul(FT0, FT1, &env->fp_status); |
1194 |
FT0 = float64_add(FT0, FT2, &env->fp_status); |
1195 |
#endif
|
1196 |
if (likely(!isnan(FT0)))
|
1197 |
FT0 = float64_chs(FT0); |
1198 |
} |
1199 |
} |
1200 |
|
1201 |
void do_fnmsub (void) |
1202 |
{ |
1203 |
if (unlikely(float64_is_signaling_nan(FT0) ||
|
1204 |
float64_is_signaling_nan(FT1) || |
1205 |
float64_is_signaling_nan(FT2))) { |
1206 |
/* sNaN operation */
|
1207 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1208 |
} else {
|
1209 |
#if USE_PRECISE_EMULATION
|
1210 |
#ifdef FLOAT128
|
1211 |
/* This is the way the PowerPC specification defines it */
|
1212 |
float128 ft0_128, ft1_128; |
1213 |
|
1214 |
ft0_128 = float64_to_float128(FT0, &env->fp_status); |
1215 |
ft1_128 = float64_to_float128(FT1, &env->fp_status); |
1216 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
1217 |
ft1_128 = float64_to_float128(FT2, &env->fp_status); |
1218 |
ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status); |
1219 |
FT0 = float128_to_float64(ft0_128, &env->fp_status); |
1220 |
#else
|
1221 |
/* This is OK on x86 hosts */
|
1222 |
FT0 = (FT0 * FT1) - FT2; |
1223 |
#endif
|
1224 |
#else
|
1225 |
FT0 = float64_mul(FT0, FT1, &env->fp_status); |
1226 |
FT0 = float64_sub(FT0, FT2, &env->fp_status); |
1227 |
#endif
|
1228 |
if (likely(!isnan(FT0)))
|
1229 |
FT0 = float64_chs(FT0); |
1230 |
} |
1231 |
} |
1232 |
|
1233 |
#if USE_PRECISE_EMULATION
|
1234 |
void do_frsp (void) |
1235 |
{ |
1236 |
if (unlikely(float64_is_signaling_nan(FT0))) {
|
1237 |
/* sNaN square root */
|
1238 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1239 |
} else {
|
1240 |
FT0 = float64_to_float32(FT0, &env->fp_status); |
1241 |
} |
1242 |
} |
1243 |
#endif /* USE_PRECISE_EMULATION */ |
1244 |
|
1245 |
void do_fsqrt (void) |
1246 |
{ |
1247 |
if (unlikely(float64_is_signaling_nan(FT0))) {
|
1248 |
/* sNaN square root */
|
1249 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1250 |
} else if (unlikely(fpisneg(FT0) && !iszero(FT0))) { |
1251 |
/* Square root of a negative nonzero number */
|
1252 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSQRT); |
1253 |
} else {
|
1254 |
FT0 = float64_sqrt(FT0, &env->fp_status); |
1255 |
} |
1256 |
} |
1257 |
|
1258 |
void do_fre (void) |
1259 |
{ |
1260 |
CPU_DoubleU p; |
1261 |
|
1262 |
if (unlikely(float64_is_signaling_nan(FT0))) {
|
1263 |
/* sNaN reciprocal */
|
1264 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1265 |
} else if (unlikely(iszero(FT0))) { |
1266 |
/* Zero reciprocal */
|
1267 |
float_zero_divide_excp(); |
1268 |
} else if (likely(isnormal(FT0))) { |
1269 |
FT0 = float64_div(1.0, FT0, &env->fp_status); |
1270 |
} else {
|
1271 |
p.d = FT0; |
1272 |
if (p.ll == 0x8000000000000000ULL) { |
1273 |
p.ll = 0xFFF0000000000000ULL;
|
1274 |
} else if (p.ll == 0x0000000000000000ULL) { |
1275 |
p.ll = 0x7FF0000000000000ULL;
|
1276 |
} else if (isnan(FT0)) { |
1277 |
p.ll = 0x7FF8000000000000ULL;
|
1278 |
} else if (fpisneg(FT0)) { |
1279 |
p.ll = 0x8000000000000000ULL;
|
1280 |
} else {
|
1281 |
p.ll = 0x0000000000000000ULL;
|
1282 |
} |
1283 |
FT0 = p.d; |
1284 |
} |
1285 |
} |
1286 |
|
1287 |
void do_fres (void) |
1288 |
{ |
1289 |
CPU_DoubleU p; |
1290 |
|
1291 |
if (unlikely(float64_is_signaling_nan(FT0))) {
|
1292 |
/* sNaN reciprocal */
|
1293 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1294 |
} else if (unlikely(iszero(FT0))) { |
1295 |
/* Zero reciprocal */
|
1296 |
float_zero_divide_excp(); |
1297 |
} else if (likely(isnormal(FT0))) { |
1298 |
#if USE_PRECISE_EMULATION
|
1299 |
FT0 = float64_div(1.0, FT0, &env->fp_status); |
1300 |
FT0 = float64_to_float32(FT0, &env->fp_status); |
1301 |
#else
|
1302 |
FT0 = float32_div(1.0, FT0, &env->fp_status); |
1303 |
#endif
|
1304 |
} else {
|
1305 |
p.d = FT0; |
1306 |
if (p.ll == 0x8000000000000000ULL) { |
1307 |
p.ll = 0xFFF0000000000000ULL;
|
1308 |
} else if (p.ll == 0x0000000000000000ULL) { |
1309 |
p.ll = 0x7FF0000000000000ULL;
|
1310 |
} else if (isnan(FT0)) { |
1311 |
p.ll = 0x7FF8000000000000ULL;
|
1312 |
} else if (fpisneg(FT0)) { |
1313 |
p.ll = 0x8000000000000000ULL;
|
1314 |
} else {
|
1315 |
p.ll = 0x0000000000000000ULL;
|
1316 |
} |
1317 |
FT0 = p.d; |
1318 |
} |
1319 |
} |
1320 |
|
1321 |
void do_frsqrte (void) |
1322 |
{ |
1323 |
CPU_DoubleU p; |
1324 |
|
1325 |
if (unlikely(float64_is_signaling_nan(FT0))) {
|
1326 |
/* sNaN reciprocal square root */
|
1327 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1328 |
} else if (unlikely(fpisneg(FT0) && !iszero(FT0))) { |
1329 |
/* Reciprocal square root of a negative nonzero number */
|
1330 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSQRT); |
1331 |
} else if (likely(isnormal(FT0))) { |
1332 |
FT0 = float64_sqrt(FT0, &env->fp_status); |
1333 |
FT0 = float32_div(1.0, FT0, &env->fp_status); |
1334 |
} else {
|
1335 |
p.d = FT0; |
1336 |
if (p.ll == 0x8000000000000000ULL) { |
1337 |
p.ll = 0xFFF0000000000000ULL;
|
1338 |
} else if (p.ll == 0x0000000000000000ULL) { |
1339 |
p.ll = 0x7FF0000000000000ULL;
|
1340 |
} else if (isnan(FT0)) { |
1341 |
p.ll |= 0x000FFFFFFFFFFFFFULL;
|
1342 |
} else if (fpisneg(FT0)) { |
1343 |
p.ll = 0x7FF8000000000000ULL;
|
1344 |
} else {
|
1345 |
p.ll = 0x0000000000000000ULL;
|
1346 |
} |
1347 |
FT0 = p.d; |
1348 |
} |
1349 |
} |
1350 |
|
1351 |
void do_fsel (void) |
1352 |
{ |
1353 |
if (!fpisneg(FT0) || iszero(FT0))
|
1354 |
FT0 = FT1; |
1355 |
else
|
1356 |
FT0 = FT2; |
1357 |
} |
1358 |
|
1359 |
void do_fcmpu (void) |
1360 |
{ |
1361 |
if (unlikely(float64_is_signaling_nan(FT0) ||
|
1362 |
float64_is_signaling_nan(FT1))) { |
1363 |
/* sNaN comparison */
|
1364 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1365 |
} else {
|
1366 |
if (float64_lt(FT0, FT1, &env->fp_status)) {
|
1367 |
T0 = 0x08UL;
|
1368 |
} else if (!float64_le(FT0, FT1, &env->fp_status)) { |
1369 |
T0 = 0x04UL;
|
1370 |
} else {
|
1371 |
T0 = 0x02UL;
|
1372 |
} |
1373 |
} |
1374 |
env->fpscr &= ~(0x0F << FPSCR_FPRF);
|
1375 |
env->fpscr |= T0 << FPSCR_FPRF; |
1376 |
} |
1377 |
|
1378 |
void do_fcmpo (void) |
1379 |
{ |
1380 |
if (unlikely(float64_is_nan(FT0) ||
|
1381 |
float64_is_nan(FT1))) { |
1382 |
if (float64_is_signaling_nan(FT0) ||
|
1383 |
float64_is_signaling_nan(FT1)) { |
1384 |
/* sNaN comparison */
|
1385 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | |
1386 |
POWERPC_EXCP_FP_VXVC); |
1387 |
} else {
|
1388 |
/* qNaN comparison */
|
1389 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXVC); |
1390 |
} |
1391 |
} else {
|
1392 |
if (float64_lt(FT0, FT1, &env->fp_status)) {
|
1393 |
T0 = 0x08UL;
|
1394 |
} else if (!float64_le(FT0, FT1, &env->fp_status)) { |
1395 |
T0 = 0x04UL;
|
1396 |
} else {
|
1397 |
T0 = 0x02UL;
|
1398 |
} |
1399 |
} |
1400 |
env->fpscr &= ~(0x0F << FPSCR_FPRF);
|
1401 |
env->fpscr |= T0 << FPSCR_FPRF; |
1402 |
} |
1403 |
|
1404 |
#if !defined (CONFIG_USER_ONLY)
|
1405 |
void cpu_dump_rfi (target_ulong RA, target_ulong msr);
|
1406 |
|
1407 |
void do_store_msr (void) |
1408 |
{ |
1409 |
T0 = hreg_store_msr(env, T0, 0);
|
1410 |
if (T0 != 0) { |
1411 |
env->interrupt_request |= CPU_INTERRUPT_EXITTB; |
1412 |
do_raise_exception(T0); |
1413 |
} |
1414 |
} |
1415 |
|
1416 |
static always_inline void __do_rfi (target_ulong nip, target_ulong msr, |
1417 |
target_ulong msrm, int keep_msrh)
|
1418 |
{ |
1419 |
#if defined(TARGET_PPC64)
|
1420 |
if (msr & (1ULL << MSR_SF)) { |
1421 |
nip = (uint64_t)nip; |
1422 |
msr &= (uint64_t)msrm; |
1423 |
} else {
|
1424 |
nip = (uint32_t)nip; |
1425 |
msr = (uint32_t)(msr & msrm); |
1426 |
if (keep_msrh)
|
1427 |
msr |= env->msr & ~((uint64_t)0xFFFFFFFF);
|
1428 |
} |
1429 |
#else
|
1430 |
nip = (uint32_t)nip; |
1431 |
msr &= (uint32_t)msrm; |
1432 |
#endif
|
1433 |
/* XXX: beware: this is false if VLE is supported */
|
1434 |
env->nip = nip & ~((target_ulong)0x00000003);
|
1435 |
hreg_store_msr(env, msr, 1);
|
1436 |
#if defined (DEBUG_OP)
|
1437 |
cpu_dump_rfi(env->nip, env->msr); |
1438 |
#endif
|
1439 |
/* No need to raise an exception here,
|
1440 |
* as rfi is always the last insn of a TB
|
1441 |
*/
|
1442 |
env->interrupt_request |= CPU_INTERRUPT_EXITTB; |
1443 |
} |
1444 |
|
1445 |
void do_rfi (void) |
1446 |
{ |
1447 |
__do_rfi(env->spr[SPR_SRR0], env->spr[SPR_SRR1], |
1448 |
~((target_ulong)0xFFFF0000), 1); |
1449 |
} |
1450 |
|
1451 |
#if defined(TARGET_PPC64)
|
1452 |
void do_rfid (void) |
1453 |
{ |
1454 |
__do_rfi(env->spr[SPR_SRR0], env->spr[SPR_SRR1], |
1455 |
~((target_ulong)0xFFFF0000), 0); |
1456 |
} |
1457 |
|
1458 |
void do_hrfid (void) |
1459 |
{ |
1460 |
__do_rfi(env->spr[SPR_HSRR0], env->spr[SPR_HSRR1], |
1461 |
~((target_ulong)0xFFFF0000), 0); |
1462 |
} |
1463 |
#endif
|
1464 |
#endif
|
1465 |
|
1466 |
void do_tw (int flags) |
1467 |
{ |
1468 |
if (!likely(!(((int32_t)T0 < (int32_t)T1 && (flags & 0x10)) || |
1469 |
((int32_t)T0 > (int32_t)T1 && (flags & 0x08)) ||
|
1470 |
((int32_t)T0 == (int32_t)T1 && (flags & 0x04)) ||
|
1471 |
((uint32_t)T0 < (uint32_t)T1 && (flags & 0x02)) ||
|
1472 |
((uint32_t)T0 > (uint32_t)T1 && (flags & 0x01))))) {
|
1473 |
do_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP); |
1474 |
} |
1475 |
} |
1476 |
|
1477 |
#if defined(TARGET_PPC64)
|
1478 |
void do_td (int flags) |
1479 |
{ |
1480 |
if (!likely(!(((int64_t)T0 < (int64_t)T1 && (flags & 0x10)) || |
1481 |
((int64_t)T0 > (int64_t)T1 && (flags & 0x08)) ||
|
1482 |
((int64_t)T0 == (int64_t)T1 && (flags & 0x04)) ||
|
1483 |
((uint64_t)T0 < (uint64_t)T1 && (flags & 0x02)) ||
|
1484 |
((uint64_t)T0 > (uint64_t)T1 && (flags & 0x01)))))
|
1485 |
do_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP); |
1486 |
} |
1487 |
#endif
|
1488 |
|
1489 |
/*****************************************************************************/
|
1490 |
/* PowerPC 601 specific instructions (POWER bridge) */
|
1491 |
void do_POWER_abso (void) |
1492 |
{ |
1493 |
if ((int32_t)T0 == INT32_MIN) {
|
1494 |
T0 = INT32_MAX; |
1495 |
xer_ov = 1;
|
1496 |
} else if ((int32_t)T0 < 0) { |
1497 |
T0 = -T0; |
1498 |
xer_ov = 0;
|
1499 |
} else {
|
1500 |
xer_ov = 0;
|
1501 |
} |
1502 |
xer_so |= xer_ov; |
1503 |
} |
1504 |
|
1505 |
void do_POWER_clcs (void) |
1506 |
{ |
1507 |
switch (T0) {
|
1508 |
case 0x0CUL: |
1509 |
/* Instruction cache line size */
|
1510 |
T0 = env->icache_line_size; |
1511 |
break;
|
1512 |
case 0x0DUL: |
1513 |
/* Data cache line size */
|
1514 |
T0 = env->dcache_line_size; |
1515 |
break;
|
1516 |
case 0x0EUL: |
1517 |
/* Minimum cache line size */
|
1518 |
T0 = env->icache_line_size < env->dcache_line_size ? |
1519 |
env->icache_line_size : env->dcache_line_size; |
1520 |
break;
|
1521 |
case 0x0FUL: |
1522 |
/* Maximum cache line size */
|
1523 |
T0 = env->icache_line_size > env->dcache_line_size ? |
1524 |
env->icache_line_size : env->dcache_line_size; |
1525 |
break;
|
1526 |
default:
|
1527 |
/* Undefined */
|
1528 |
break;
|
1529 |
} |
1530 |
} |
1531 |
|
1532 |
void do_POWER_div (void) |
1533 |
{ |
1534 |
uint64_t tmp; |
1535 |
|
1536 |
if (((int32_t)T0 == INT32_MIN && (int32_t)T1 == (int32_t)-1) || |
1537 |
(int32_t)T1 == 0) {
|
1538 |
T0 = UINT32_MAX * ((uint32_t)T0 >> 31);
|
1539 |
env->spr[SPR_MQ] = 0;
|
1540 |
} else {
|
1541 |
tmp = ((uint64_t)T0 << 32) | env->spr[SPR_MQ];
|
1542 |
env->spr[SPR_MQ] = tmp % T1; |
1543 |
T0 = tmp / (int32_t)T1; |
1544 |
} |
1545 |
} |
1546 |
|
1547 |
void do_POWER_divo (void) |
1548 |
{ |
1549 |
int64_t tmp; |
1550 |
|
1551 |
if (((int32_t)T0 == INT32_MIN && (int32_t)T1 == (int32_t)-1) || |
1552 |
(int32_t)T1 == 0) {
|
1553 |
T0 = UINT32_MAX * ((uint32_t)T0 >> 31);
|
1554 |
env->spr[SPR_MQ] = 0;
|
1555 |
xer_ov = 1;
|
1556 |
} else {
|
1557 |
tmp = ((uint64_t)T0 << 32) | env->spr[SPR_MQ];
|
1558 |
env->spr[SPR_MQ] = tmp % T1; |
1559 |
tmp /= (int32_t)T1; |
1560 |
if (tmp > (int64_t)INT32_MAX || tmp < (int64_t)INT32_MIN) {
|
1561 |
xer_ov = 1;
|
1562 |
} else {
|
1563 |
xer_ov = 0;
|
1564 |
} |
1565 |
T0 = tmp; |
1566 |
} |
1567 |
xer_so |= xer_ov; |
1568 |
} |
1569 |
|
1570 |
void do_POWER_divs (void) |
1571 |
{ |
1572 |
if (((int32_t)T0 == INT32_MIN && (int32_t)T1 == (int32_t)-1) || |
1573 |
(int32_t)T1 == 0) {
|
1574 |
T0 = UINT32_MAX * ((uint32_t)T0 >> 31);
|
1575 |
env->spr[SPR_MQ] = 0;
|
1576 |
} else {
|
1577 |
env->spr[SPR_MQ] = T0 % T1; |
1578 |
T0 = (int32_t)T0 / (int32_t)T1; |
1579 |
} |
1580 |
} |
1581 |
|
1582 |
void do_POWER_divso (void) |
1583 |
{ |
1584 |
if (((int32_t)T0 == INT32_MIN && (int32_t)T1 == (int32_t)-1) || |
1585 |
(int32_t)T1 == 0) {
|
1586 |
T0 = UINT32_MAX * ((uint32_t)T0 >> 31);
|
1587 |
env->spr[SPR_MQ] = 0;
|
1588 |
xer_ov = 1;
|
1589 |
} else {
|
1590 |
T0 = (int32_t)T0 / (int32_t)T1; |
1591 |
env->spr[SPR_MQ] = (int32_t)T0 % (int32_t)T1; |
1592 |
xer_ov = 0;
|
1593 |
} |
1594 |
xer_so |= xer_ov; |
1595 |
} |
1596 |
|
1597 |
void do_POWER_dozo (void) |
1598 |
{ |
1599 |
if ((int32_t)T1 > (int32_t)T0) {
|
1600 |
T2 = T0; |
1601 |
T0 = T1 - T0; |
1602 |
if (((uint32_t)(~T2) ^ (uint32_t)T1 ^ UINT32_MAX) &
|
1603 |
((uint32_t)(~T2) ^ (uint32_t)T0) & (1UL << 31)) { |
1604 |
xer_ov = 1;
|
1605 |
xer_so = 1;
|
1606 |
} else {
|
1607 |
xer_ov = 0;
|
1608 |
} |
1609 |
} else {
|
1610 |
T0 = 0;
|
1611 |
xer_ov = 0;
|
1612 |
} |
1613 |
} |
1614 |
|
1615 |
void do_POWER_maskg (void) |
1616 |
{ |
1617 |
uint32_t ret; |
1618 |
|
1619 |
if ((uint32_t)T0 == (uint32_t)(T1 + 1)) { |
1620 |
ret = UINT32_MAX; |
1621 |
} else {
|
1622 |
ret = (UINT32_MAX >> ((uint32_t)T0)) ^ |
1623 |
((UINT32_MAX >> ((uint32_t)T1)) >> 1);
|
1624 |
if ((uint32_t)T0 > (uint32_t)T1)
|
1625 |
ret = ~ret; |
1626 |
} |
1627 |
T0 = ret; |
1628 |
} |
1629 |
|
1630 |
void do_POWER_mulo (void) |
1631 |
{ |
1632 |
uint64_t tmp; |
1633 |
|
1634 |
tmp = (uint64_t)T0 * (uint64_t)T1; |
1635 |
env->spr[SPR_MQ] = tmp >> 32;
|
1636 |
T0 = tmp; |
1637 |
if (tmp >> 32 != ((uint64_t)T0 >> 16) * ((uint64_t)T1 >> 16)) { |
1638 |
xer_ov = 1;
|
1639 |
xer_so = 1;
|
1640 |
} else {
|
1641 |
xer_ov = 0;
|
1642 |
} |
1643 |
} |
1644 |
|
1645 |
#if !defined (CONFIG_USER_ONLY)
|
1646 |
void do_POWER_rac (void) |
1647 |
{ |
1648 |
mmu_ctx_t ctx; |
1649 |
int nb_BATs;
|
1650 |
|
1651 |
/* We don't have to generate many instances of this instruction,
|
1652 |
* as rac is supervisor only.
|
1653 |
*/
|
1654 |
/* XXX: FIX THIS: Pretend we have no BAT */
|
1655 |
nb_BATs = env->nb_BATs; |
1656 |
env->nb_BATs = 0;
|
1657 |
if (get_physical_address(env, &ctx, T0, 0, ACCESS_INT) == 0) |
1658 |
T0 = ctx.raddr; |
1659 |
env->nb_BATs = nb_BATs; |
1660 |
} |
1661 |
|
1662 |
void do_POWER_rfsvc (void) |
1663 |
{ |
1664 |
__do_rfi(env->lr, env->ctr, 0x0000FFFF, 0); |
1665 |
} |
1666 |
|
1667 |
void do_store_hid0_601 (void) |
1668 |
{ |
1669 |
uint32_t hid0; |
1670 |
|
1671 |
hid0 = env->spr[SPR_HID0]; |
1672 |
if ((T0 ^ hid0) & 0x00000008) { |
1673 |
/* Change current endianness */
|
1674 |
env->hflags &= ~(1 << MSR_LE);
|
1675 |
env->hflags_nmsr &= ~(1 << MSR_LE);
|
1676 |
env->hflags_nmsr |= (1 << MSR_LE) & (((T0 >> 3) & 1) << MSR_LE); |
1677 |
env->hflags |= env->hflags_nmsr; |
1678 |
if (loglevel != 0) { |
1679 |
fprintf(logfile, "%s: set endianness to %c => " ADDRX "\n", |
1680 |
__func__, T0 & 0x8 ? 'l' : 'b', env->hflags); |
1681 |
} |
1682 |
} |
1683 |
env->spr[SPR_HID0] = T0; |
1684 |
} |
1685 |
#endif
|
1686 |
|
1687 |
/*****************************************************************************/
|
1688 |
/* 602 specific instructions */
|
1689 |
/* mfrom is the most crazy instruction ever seen, imho ! */
|
1690 |
/* Real implementation uses a ROM table. Do the same */
|
1691 |
#define USE_MFROM_ROM_TABLE
|
1692 |
void do_op_602_mfrom (void) |
1693 |
{ |
1694 |
if (likely(T0 < 602)) { |
1695 |
#if defined(USE_MFROM_ROM_TABLE)
|
1696 |
#include "mfrom_table.c" |
1697 |
T0 = mfrom_ROM_table[T0]; |
1698 |
#else
|
1699 |
double d;
|
1700 |
/* Extremly decomposed:
|
1701 |
* -T0 / 256
|
1702 |
* T0 = 256 * log10(10 + 1.0) + 0.5
|
1703 |
*/
|
1704 |
d = T0; |
1705 |
d = float64_div(d, 256, &env->fp_status);
|
1706 |
d = float64_chs(d); |
1707 |
d = exp10(d); // XXX: use float emulation function
|
1708 |
d = float64_add(d, 1.0, &env->fp_status); |
1709 |
d = log10(d); // XXX: use float emulation function
|
1710 |
d = float64_mul(d, 256, &env->fp_status);
|
1711 |
d = float64_add(d, 0.5, &env->fp_status); |
1712 |
T0 = float64_round_to_int(d, &env->fp_status); |
1713 |
#endif
|
1714 |
} else {
|
1715 |
T0 = 0;
|
1716 |
} |
1717 |
} |
1718 |
|
1719 |
/*****************************************************************************/
|
1720 |
/* Embedded PowerPC specific helpers */
|
1721 |
void do_405_check_sat (void) |
1722 |
{ |
1723 |
if (!likely((((uint32_t)T1 ^ (uint32_t)T2) >> 31) || |
1724 |
!(((uint32_t)T0 ^ (uint32_t)T2) >> 31))) {
|
1725 |
/* Saturate result */
|
1726 |
if (T2 >> 31) { |
1727 |
T0 = INT32_MIN; |
1728 |
} else {
|
1729 |
T0 = INT32_MAX; |
1730 |
} |
1731 |
} |
1732 |
} |
1733 |
|
1734 |
/* XXX: to be improved to check access rights when in user-mode */
|
1735 |
void do_load_dcr (void) |
1736 |
{ |
1737 |
target_ulong val; |
1738 |
|
1739 |
if (unlikely(env->dcr_env == NULL)) { |
1740 |
if (loglevel != 0) { |
1741 |
fprintf(logfile, "No DCR environment\n");
|
1742 |
} |
1743 |
do_raise_exception_err(POWERPC_EXCP_PROGRAM, |
1744 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL); |
1745 |
} else if (unlikely(ppc_dcr_read(env->dcr_env, T0, &val) != 0)) { |
1746 |
if (loglevel != 0) { |
1747 |
fprintf(logfile, "DCR read error %d %03x\n", (int)T0, (int)T0); |
1748 |
} |
1749 |
do_raise_exception_err(POWERPC_EXCP_PROGRAM, |
1750 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG); |
1751 |
} else {
|
1752 |
T0 = val; |
1753 |
} |
1754 |
} |
1755 |
|
1756 |
void do_store_dcr (void) |
1757 |
{ |
1758 |
if (unlikely(env->dcr_env == NULL)) { |
1759 |
if (loglevel != 0) { |
1760 |
fprintf(logfile, "No DCR environment\n");
|
1761 |
} |
1762 |
do_raise_exception_err(POWERPC_EXCP_PROGRAM, |
1763 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL); |
1764 |
} else if (unlikely(ppc_dcr_write(env->dcr_env, T0, T1) != 0)) { |
1765 |
if (loglevel != 0) { |
1766 |
fprintf(logfile, "DCR write error %d %03x\n", (int)T0, (int)T0); |
1767 |
} |
1768 |
do_raise_exception_err(POWERPC_EXCP_PROGRAM, |
1769 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG); |
1770 |
} |
1771 |
} |
1772 |
|
1773 |
#if !defined(CONFIG_USER_ONLY)
|
1774 |
void do_40x_rfci (void) |
1775 |
{ |
1776 |
__do_rfi(env->spr[SPR_40x_SRR2], env->spr[SPR_40x_SRR3], |
1777 |
~((target_ulong)0xFFFF0000), 0); |
1778 |
} |
1779 |
|
1780 |
void do_rfci (void) |
1781 |
{ |
1782 |
__do_rfi(env->spr[SPR_BOOKE_CSRR0], SPR_BOOKE_CSRR1, |
1783 |
~((target_ulong)0x3FFF0000), 0); |
1784 |
} |
1785 |
|
1786 |
void do_rfdi (void) |
1787 |
{ |
1788 |
__do_rfi(env->spr[SPR_BOOKE_DSRR0], SPR_BOOKE_DSRR1, |
1789 |
~((target_ulong)0x3FFF0000), 0); |
1790 |
} |
1791 |
|
1792 |
void do_rfmci (void) |
1793 |
{ |
1794 |
__do_rfi(env->spr[SPR_BOOKE_MCSRR0], SPR_BOOKE_MCSRR1, |
1795 |
~((target_ulong)0x3FFF0000), 0); |
1796 |
} |
1797 |
|
1798 |
void do_load_403_pb (int num) |
1799 |
{ |
1800 |
T0 = env->pb[num]; |
1801 |
} |
1802 |
|
1803 |
void do_store_403_pb (int num) |
1804 |
{ |
1805 |
if (likely(env->pb[num] != T0)) {
|
1806 |
env->pb[num] = T0; |
1807 |
/* Should be optimized */
|
1808 |
tlb_flush(env, 1);
|
1809 |
} |
1810 |
} |
1811 |
#endif
|
1812 |
|
1813 |
/* 440 specific */
|
1814 |
void do_440_dlmzb (void) |
1815 |
{ |
1816 |
target_ulong mask; |
1817 |
int i;
|
1818 |
|
1819 |
i = 1;
|
1820 |
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
1821 |
if ((T0 & mask) == 0) |
1822 |
goto done;
|
1823 |
i++; |
1824 |
} |
1825 |
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
1826 |
if ((T1 & mask) == 0) |
1827 |
break;
|
1828 |
i++; |
1829 |
} |
1830 |
done:
|
1831 |
T0 = i; |
1832 |
} |
1833 |
|
1834 |
/* SPE extension helpers */
|
1835 |
/* Use a table to make this quicker */
|
1836 |
static uint8_t hbrev[16] = { |
1837 |
0x0, 0x8, 0x4, 0xC, 0x2, 0xA, 0x6, 0xE, |
1838 |
0x1, 0x9, 0x5, 0xD, 0x3, 0xB, 0x7, 0xF, |
1839 |
}; |
1840 |
|
1841 |
static always_inline uint8_t byte_reverse (uint8_t val)
|
1842 |
{ |
1843 |
return hbrev[val >> 4] | (hbrev[val & 0xF] << 4); |
1844 |
} |
1845 |
|
1846 |
static always_inline uint32_t word_reverse (uint32_t val)
|
1847 |
{ |
1848 |
return byte_reverse(val >> 24) | (byte_reverse(val >> 16) << 8) | |
1849 |
(byte_reverse(val >> 8) << 16) | (byte_reverse(val) << 24); |
1850 |
} |
1851 |
|
1852 |
#define MASKBITS 16 // Random value - to be fixed (implementation dependant) |
1853 |
void do_brinc (void) |
1854 |
{ |
1855 |
uint32_t a, b, d, mask; |
1856 |
|
1857 |
mask = UINT32_MAX >> (32 - MASKBITS);
|
1858 |
a = T0 & mask; |
1859 |
b = T1 & mask; |
1860 |
d = word_reverse(1 + word_reverse(a | ~b));
|
1861 |
T0 = (T0 & ~mask) | (d & b); |
1862 |
} |
1863 |
|
1864 |
#define DO_SPE_OP2(name) \
|
1865 |
void do_ev##name (void) \ |
1866 |
{ \ |
1867 |
T0_64 = ((uint64_t)_do_e##name(T0_64 >> 32, T1_64 >> 32) << 32) | \ |
1868 |
(uint64_t)_do_e##name(T0_64, T1_64); \ |
1869 |
} |
1870 |
|
1871 |
#define DO_SPE_OP1(name) \
|
1872 |
void do_ev##name (void) \ |
1873 |
{ \ |
1874 |
T0_64 = ((uint64_t)_do_e##name(T0_64 >> 32) << 32) | \ |
1875 |
(uint64_t)_do_e##name(T0_64); \ |
1876 |
} |
1877 |
|
1878 |
/* Fixed-point vector arithmetic */
|
1879 |
static always_inline uint32_t _do_eabs (uint32_t val)
|
1880 |
{ |
1881 |
if ((val & 0x80000000) && val != 0x80000000) |
1882 |
val -= val; |
1883 |
|
1884 |
return val;
|
1885 |
} |
1886 |
|
1887 |
static always_inline uint32_t _do_eaddw (uint32_t op1, uint32_t op2)
|
1888 |
{ |
1889 |
return op1 + op2;
|
1890 |
} |
1891 |
|
1892 |
static always_inline int _do_ecntlsw (uint32_t val) |
1893 |
{ |
1894 |
if (val & 0x80000000) |
1895 |
return clz32(~val);
|
1896 |
else
|
1897 |
return clz32(val);
|
1898 |
} |
1899 |
|
1900 |
static always_inline int _do_ecntlzw (uint32_t val) |
1901 |
{ |
1902 |
return clz32(val);
|
1903 |
} |
1904 |
|
1905 |
static always_inline uint32_t _do_eneg (uint32_t val)
|
1906 |
{ |
1907 |
if (val != 0x80000000) |
1908 |
val -= val; |
1909 |
|
1910 |
return val;
|
1911 |
} |
1912 |
|
1913 |
static always_inline uint32_t _do_erlw (uint32_t op1, uint32_t op2)
|
1914 |
{ |
1915 |
return rotl32(op1, op2);
|
1916 |
} |
1917 |
|
1918 |
static always_inline uint32_t _do_erndw (uint32_t val)
|
1919 |
{ |
1920 |
return (val + 0x000080000000) & 0xFFFF0000; |
1921 |
} |
1922 |
|
1923 |
static always_inline uint32_t _do_eslw (uint32_t op1, uint32_t op2)
|
1924 |
{ |
1925 |
/* No error here: 6 bits are used */
|
1926 |
return op1 << (op2 & 0x3F); |
1927 |
} |
1928 |
|
1929 |
static always_inline int32_t _do_esrws (int32_t op1, uint32_t op2)
|
1930 |
{ |
1931 |
/* No error here: 6 bits are used */
|
1932 |
return op1 >> (op2 & 0x3F); |
1933 |
} |
1934 |
|
1935 |
static always_inline uint32_t _do_esrwu (uint32_t op1, uint32_t op2)
|
1936 |
{ |
1937 |
/* No error here: 6 bits are used */
|
1938 |
return op1 >> (op2 & 0x3F); |
1939 |
} |
1940 |
|
1941 |
static always_inline uint32_t _do_esubfw (uint32_t op1, uint32_t op2)
|
1942 |
{ |
1943 |
return op2 - op1;
|
1944 |
} |
1945 |
|
1946 |
/* evabs */
|
1947 |
DO_SPE_OP1(abs); |
1948 |
/* evaddw */
|
1949 |
DO_SPE_OP2(addw); |
1950 |
/* evcntlsw */
|
1951 |
DO_SPE_OP1(cntlsw); |
1952 |
/* evcntlzw */
|
1953 |
DO_SPE_OP1(cntlzw); |
1954 |
/* evneg */
|
1955 |
DO_SPE_OP1(neg); |
1956 |
/* evrlw */
|
1957 |
DO_SPE_OP2(rlw); |
1958 |
/* evrnd */
|
1959 |
DO_SPE_OP1(rndw); |
1960 |
/* evslw */
|
1961 |
DO_SPE_OP2(slw); |
1962 |
/* evsrws */
|
1963 |
DO_SPE_OP2(srws); |
1964 |
/* evsrwu */
|
1965 |
DO_SPE_OP2(srwu); |
1966 |
/* evsubfw */
|
1967 |
DO_SPE_OP2(subfw); |
1968 |
|
1969 |
/* evsel is a little bit more complicated... */
|
1970 |
static always_inline uint32_t _do_esel (uint32_t op1, uint32_t op2, int n) |
1971 |
{ |
1972 |
if (n)
|
1973 |
return op1;
|
1974 |
else
|
1975 |
return op2;
|
1976 |
} |
1977 |
|
1978 |
void do_evsel (void) |
1979 |
{ |
1980 |
T0_64 = ((uint64_t)_do_esel(T0_64 >> 32, T1_64 >> 32, T0 >> 3) << 32) | |
1981 |
(uint64_t)_do_esel(T0_64, T1_64, (T0 >> 2) & 1); |
1982 |
} |
1983 |
|
1984 |
/* Fixed-point vector comparisons */
|
1985 |
#define DO_SPE_CMP(name) \
|
1986 |
void do_ev##name (void) \ |
1987 |
{ \ |
1988 |
T0 = _do_evcmp_merge((uint64_t)_do_e##name(T0_64 >> 32, \ |
1989 |
T1_64 >> 32) << 32, \ |
1990 |
_do_e##name(T0_64, T1_64)); \ |
1991 |
} |
1992 |
|
1993 |
static always_inline uint32_t _do_evcmp_merge (int t0, int t1) |
1994 |
{ |
1995 |
return (t0 << 3) | (t1 << 2) | ((t0 | t1) << 1) | (t0 & t1); |
1996 |
} |
1997 |
static always_inline int _do_ecmpeq (uint32_t op1, uint32_t op2) |
1998 |
{ |
1999 |
return op1 == op2 ? 1 : 0; |
2000 |
} |
2001 |
|
2002 |
static always_inline int _do_ecmpgts (int32_t op1, int32_t op2) |
2003 |
{ |
2004 |
return op1 > op2 ? 1 : 0; |
2005 |
} |
2006 |
|
2007 |
static always_inline int _do_ecmpgtu (uint32_t op1, uint32_t op2) |
2008 |
{ |
2009 |
return op1 > op2 ? 1 : 0; |
2010 |
} |
2011 |
|
2012 |
static always_inline int _do_ecmplts (int32_t op1, int32_t op2) |
2013 |
{ |
2014 |
return op1 < op2 ? 1 : 0; |
2015 |
} |
2016 |
|
2017 |
static always_inline int _do_ecmpltu (uint32_t op1, uint32_t op2) |
2018 |
{ |
2019 |
return op1 < op2 ? 1 : 0; |
2020 |
} |
2021 |
|
2022 |
/* evcmpeq */
|
2023 |
DO_SPE_CMP(cmpeq); |
2024 |
/* evcmpgts */
|
2025 |
DO_SPE_CMP(cmpgts); |
2026 |
/* evcmpgtu */
|
2027 |
DO_SPE_CMP(cmpgtu); |
2028 |
/* evcmplts */
|
2029 |
DO_SPE_CMP(cmplts); |
2030 |
/* evcmpltu */
|
2031 |
DO_SPE_CMP(cmpltu); |
2032 |
|
2033 |
/* Single precision floating-point conversions from/to integer */
|
2034 |
static always_inline uint32_t _do_efscfsi (int32_t val)
|
2035 |
{ |
2036 |
CPU_FloatU u; |
2037 |
|
2038 |
u.f = int32_to_float32(val, &env->spe_status); |
2039 |
|
2040 |
return u.l;
|
2041 |
} |
2042 |
|
2043 |
static always_inline uint32_t _do_efscfui (uint32_t val)
|
2044 |
{ |
2045 |
CPU_FloatU u; |
2046 |
|
2047 |
u.f = uint32_to_float32(val, &env->spe_status); |
2048 |
|
2049 |
return u.l;
|
2050 |
} |
2051 |
|
2052 |
static always_inline int32_t _do_efsctsi (uint32_t val)
|
2053 |
{ |
2054 |
CPU_FloatU u; |
2055 |
|
2056 |
u.l = val; |
2057 |
/* NaN are not treated the same way IEEE 754 does */
|
2058 |
if (unlikely(isnan(u.f)))
|
2059 |
return 0; |
2060 |
|
2061 |
return float32_to_int32(u.f, &env->spe_status);
|
2062 |
} |
2063 |
|
2064 |
static always_inline uint32_t _do_efsctui (uint32_t val)
|
2065 |
{ |
2066 |
CPU_FloatU u; |
2067 |
|
2068 |
u.l = val; |
2069 |
/* NaN are not treated the same way IEEE 754 does */
|
2070 |
if (unlikely(isnan(u.f)))
|
2071 |
return 0; |
2072 |
|
2073 |
return float32_to_uint32(u.f, &env->spe_status);
|
2074 |
} |
2075 |
|
2076 |
static always_inline int32_t _do_efsctsiz (uint32_t val)
|
2077 |
{ |
2078 |
CPU_FloatU u; |
2079 |
|
2080 |
u.l = val; |
2081 |
/* NaN are not treated the same way IEEE 754 does */
|
2082 |
if (unlikely(isnan(u.f)))
|
2083 |
return 0; |
2084 |
|
2085 |
return float32_to_int32_round_to_zero(u.f, &env->spe_status);
|
2086 |
} |
2087 |
|
2088 |
static always_inline uint32_t _do_efsctuiz (uint32_t val)
|
2089 |
{ |
2090 |
CPU_FloatU u; |
2091 |
|
2092 |
u.l = val; |
2093 |
/* NaN are not treated the same way IEEE 754 does */
|
2094 |
if (unlikely(isnan(u.f)))
|
2095 |
return 0; |
2096 |
|
2097 |
return float32_to_uint32_round_to_zero(u.f, &env->spe_status);
|
2098 |
} |
2099 |
|
2100 |
void do_efscfsi (void) |
2101 |
{ |
2102 |
T0_64 = _do_efscfsi(T0_64); |
2103 |
} |
2104 |
|
2105 |
void do_efscfui (void) |
2106 |
{ |
2107 |
T0_64 = _do_efscfui(T0_64); |
2108 |
} |
2109 |
|
2110 |
void do_efsctsi (void) |
2111 |
{ |
2112 |
T0_64 = _do_efsctsi(T0_64); |
2113 |
} |
2114 |
|
2115 |
void do_efsctui (void) |
2116 |
{ |
2117 |
T0_64 = _do_efsctui(T0_64); |
2118 |
} |
2119 |
|
2120 |
void do_efsctsiz (void) |
2121 |
{ |
2122 |
T0_64 = _do_efsctsiz(T0_64); |
2123 |
} |
2124 |
|
2125 |
void do_efsctuiz (void) |
2126 |
{ |
2127 |
T0_64 = _do_efsctuiz(T0_64); |
2128 |
} |
2129 |
|
2130 |
/* Single precision floating-point conversion to/from fractional */
|
2131 |
static always_inline uint32_t _do_efscfsf (uint32_t val)
|
2132 |
{ |
2133 |
CPU_FloatU u; |
2134 |
float32 tmp; |
2135 |
|
2136 |
u.f = int32_to_float32(val, &env->spe_status); |
2137 |
tmp = int64_to_float32(1ULL << 32, &env->spe_status); |
2138 |
u.f = float32_div(u.f, tmp, &env->spe_status); |
2139 |
|
2140 |
return u.l;
|
2141 |
} |
2142 |
|
2143 |
static always_inline uint32_t _do_efscfuf (uint32_t val)
|
2144 |
{ |
2145 |
CPU_FloatU u; |
2146 |
float32 tmp; |
2147 |
|
2148 |
u.f = uint32_to_float32(val, &env->spe_status); |
2149 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
2150 |
u.f = float32_div(u.f, tmp, &env->spe_status); |
2151 |
|
2152 |
return u.l;
|
2153 |
} |
2154 |
|
2155 |
static always_inline int32_t _do_efsctsf (uint32_t val)
|
2156 |
{ |
2157 |
CPU_FloatU u; |
2158 |
float32 tmp; |
2159 |
|
2160 |
u.l = val; |
2161 |
/* NaN are not treated the same way IEEE 754 does */
|
2162 |
if (unlikely(isnan(u.f)))
|
2163 |
return 0; |
2164 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
2165 |
u.f = float32_mul(u.f, tmp, &env->spe_status); |
2166 |
|
2167 |
return float32_to_int32(u.f, &env->spe_status);
|
2168 |
} |
2169 |
|
2170 |
static always_inline uint32_t _do_efsctuf (uint32_t val)
|
2171 |
{ |
2172 |
CPU_FloatU u; |
2173 |
float32 tmp; |
2174 |
|
2175 |
u.l = val; |
2176 |
/* NaN are not treated the same way IEEE 754 does */
|
2177 |
if (unlikely(isnan(u.f)))
|
2178 |
return 0; |
2179 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
2180 |
u.f = float32_mul(u.f, tmp, &env->spe_status); |
2181 |
|
2182 |
return float32_to_uint32(u.f, &env->spe_status);
|
2183 |
} |
2184 |
|
2185 |
static always_inline int32_t _do_efsctsfz (uint32_t val)
|
2186 |
{ |
2187 |
CPU_FloatU u; |
2188 |
float32 tmp; |
2189 |
|
2190 |
u.l = val; |
2191 |
/* NaN are not treated the same way IEEE 754 does */
|
2192 |
if (unlikely(isnan(u.f)))
|
2193 |
return 0; |
2194 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
2195 |
u.f = float32_mul(u.f, tmp, &env->spe_status); |
2196 |
|
2197 |
return float32_to_int32_round_to_zero(u.f, &env->spe_status);
|
2198 |
} |
2199 |
|
2200 |
static always_inline uint32_t _do_efsctufz (uint32_t val)
|
2201 |
{ |
2202 |
CPU_FloatU u; |
2203 |
float32 tmp; |
2204 |
|
2205 |
u.l = val; |
2206 |
/* NaN are not treated the same way IEEE 754 does */
|
2207 |
if (unlikely(isnan(u.f)))
|
2208 |
return 0; |
2209 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
2210 |
u.f = float32_mul(u.f, tmp, &env->spe_status); |
2211 |
|
2212 |
return float32_to_uint32_round_to_zero(u.f, &env->spe_status);
|
2213 |
} |
2214 |
|
2215 |
void do_efscfsf (void) |
2216 |
{ |
2217 |
T0_64 = _do_efscfsf(T0_64); |
2218 |
} |
2219 |
|
2220 |
void do_efscfuf (void) |
2221 |
{ |
2222 |
T0_64 = _do_efscfuf(T0_64); |
2223 |
} |
2224 |
|
2225 |
void do_efsctsf (void) |
2226 |
{ |
2227 |
T0_64 = _do_efsctsf(T0_64); |
2228 |
} |
2229 |
|
2230 |
void do_efsctuf (void) |
2231 |
{ |
2232 |
T0_64 = _do_efsctuf(T0_64); |
2233 |
} |
2234 |
|
2235 |
void do_efsctsfz (void) |
2236 |
{ |
2237 |
T0_64 = _do_efsctsfz(T0_64); |
2238 |
} |
2239 |
|
2240 |
void do_efsctufz (void) |
2241 |
{ |
2242 |
T0_64 = _do_efsctufz(T0_64); |
2243 |
} |
2244 |
|
2245 |
/* Double precision floating point helpers */
|
2246 |
static always_inline int _do_efdcmplt (uint64_t op1, uint64_t op2) |
2247 |
{ |
2248 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2249 |
return _do_efdtstlt(op1, op2);
|
2250 |
} |
2251 |
|
2252 |
static always_inline int _do_efdcmpgt (uint64_t op1, uint64_t op2) |
2253 |
{ |
2254 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2255 |
return _do_efdtstgt(op1, op2);
|
2256 |
} |
2257 |
|
2258 |
static always_inline int _do_efdcmpeq (uint64_t op1, uint64_t op2) |
2259 |
{ |
2260 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2261 |
return _do_efdtsteq(op1, op2);
|
2262 |
} |
2263 |
|
2264 |
void do_efdcmplt (void) |
2265 |
{ |
2266 |
T0 = _do_efdcmplt(T0_64, T1_64); |
2267 |
} |
2268 |
|
2269 |
void do_efdcmpgt (void) |
2270 |
{ |
2271 |
T0 = _do_efdcmpgt(T0_64, T1_64); |
2272 |
} |
2273 |
|
2274 |
void do_efdcmpeq (void) |
2275 |
{ |
2276 |
T0 = _do_efdcmpeq(T0_64, T1_64); |
2277 |
} |
2278 |
|
2279 |
/* Double precision floating-point conversion to/from integer */
|
2280 |
static always_inline uint64_t _do_efdcfsi (int64_t val)
|
2281 |
{ |
2282 |
CPU_DoubleU u; |
2283 |
|
2284 |
u.d = int64_to_float64(val, &env->spe_status); |
2285 |
|
2286 |
return u.ll;
|
2287 |
} |
2288 |
|
2289 |
static always_inline uint64_t _do_efdcfui (uint64_t val)
|
2290 |
{ |
2291 |
CPU_DoubleU u; |
2292 |
|
2293 |
u.d = uint64_to_float64(val, &env->spe_status); |
2294 |
|
2295 |
return u.ll;
|
2296 |
} |
2297 |
|
2298 |
static always_inline int64_t _do_efdctsi (uint64_t val)
|
2299 |
{ |
2300 |
CPU_DoubleU u; |
2301 |
|
2302 |
u.ll = val; |
2303 |
/* NaN are not treated the same way IEEE 754 does */
|
2304 |
if (unlikely(isnan(u.d)))
|
2305 |
return 0; |
2306 |
|
2307 |
return float64_to_int64(u.d, &env->spe_status);
|
2308 |
} |
2309 |
|
2310 |
static always_inline uint64_t _do_efdctui (uint64_t val)
|
2311 |
{ |
2312 |
CPU_DoubleU u; |
2313 |
|
2314 |
u.ll = val; |
2315 |
/* NaN are not treated the same way IEEE 754 does */
|
2316 |
if (unlikely(isnan(u.d)))
|
2317 |
return 0; |
2318 |
|
2319 |
return float64_to_uint64(u.d, &env->spe_status);
|
2320 |
} |
2321 |
|
2322 |
static always_inline int64_t _do_efdctsiz (uint64_t val)
|
2323 |
{ |
2324 |
CPU_DoubleU u; |
2325 |
|
2326 |
u.ll = val; |
2327 |
/* NaN are not treated the same way IEEE 754 does */
|
2328 |
if (unlikely(isnan(u.d)))
|
2329 |
return 0; |
2330 |
|
2331 |
return float64_to_int64_round_to_zero(u.d, &env->spe_status);
|
2332 |
} |
2333 |
|
2334 |
static always_inline uint64_t _do_efdctuiz (uint64_t val)
|
2335 |
{ |
2336 |
CPU_DoubleU u; |
2337 |
|
2338 |
u.ll = val; |
2339 |
/* NaN are not treated the same way IEEE 754 does */
|
2340 |
if (unlikely(isnan(u.d)))
|
2341 |
return 0; |
2342 |
|
2343 |
return float64_to_uint64_round_to_zero(u.d, &env->spe_status);
|
2344 |
} |
2345 |
|
2346 |
void do_efdcfsi (void) |
2347 |
{ |
2348 |
T0_64 = _do_efdcfsi(T0_64); |
2349 |
} |
2350 |
|
2351 |
void do_efdcfui (void) |
2352 |
{ |
2353 |
T0_64 = _do_efdcfui(T0_64); |
2354 |
} |
2355 |
|
2356 |
void do_efdctsi (void) |
2357 |
{ |
2358 |
T0_64 = _do_efdctsi(T0_64); |
2359 |
} |
2360 |
|
2361 |
void do_efdctui (void) |
2362 |
{ |
2363 |
T0_64 = _do_efdctui(T0_64); |
2364 |
} |
2365 |
|
2366 |
void do_efdctsiz (void) |
2367 |
{ |
2368 |
T0_64 = _do_efdctsiz(T0_64); |
2369 |
} |
2370 |
|
2371 |
void do_efdctuiz (void) |
2372 |
{ |
2373 |
T0_64 = _do_efdctuiz(T0_64); |
2374 |
} |
2375 |
|
2376 |
/* Double precision floating-point conversion to/from fractional */
|
2377 |
static always_inline uint64_t _do_efdcfsf (int64_t val)
|
2378 |
{ |
2379 |
CPU_DoubleU u; |
2380 |
float64 tmp; |
2381 |
|
2382 |
u.d = int32_to_float64(val, &env->spe_status); |
2383 |
tmp = int64_to_float64(1ULL << 32, &env->spe_status); |
2384 |
u.d = float64_div(u.d, tmp, &env->spe_status); |
2385 |
|
2386 |
return u.ll;
|
2387 |
} |
2388 |
|
2389 |
static always_inline uint64_t _do_efdcfuf (uint64_t val)
|
2390 |
{ |
2391 |
CPU_DoubleU u; |
2392 |
float64 tmp; |
2393 |
|
2394 |
u.d = uint32_to_float64(val, &env->spe_status); |
2395 |
tmp = int64_to_float64(1ULL << 32, &env->spe_status); |
2396 |
u.d = float64_div(u.d, tmp, &env->spe_status); |
2397 |
|
2398 |
return u.ll;
|
2399 |
} |
2400 |
|
2401 |
static always_inline int64_t _do_efdctsf (uint64_t val)
|
2402 |
{ |
2403 |
CPU_DoubleU u; |
2404 |
float64 tmp; |
2405 |
|
2406 |
u.ll = val; |
2407 |
/* NaN are not treated the same way IEEE 754 does */
|
2408 |
if (unlikely(isnan(u.d)))
|
2409 |
return 0; |
2410 |
tmp = uint64_to_float64(1ULL << 32, &env->spe_status); |
2411 |
u.d = float64_mul(u.d, tmp, &env->spe_status); |
2412 |
|
2413 |
return float64_to_int32(u.d, &env->spe_status);
|
2414 |
} |
2415 |
|
2416 |
static always_inline uint64_t _do_efdctuf (uint64_t val)
|
2417 |
{ |
2418 |
CPU_DoubleU u; |
2419 |
float64 tmp; |
2420 |
|
2421 |
u.ll = val; |
2422 |
/* NaN are not treated the same way IEEE 754 does */
|
2423 |
if (unlikely(isnan(u.d)))
|
2424 |
return 0; |
2425 |
tmp = uint64_to_float64(1ULL << 32, &env->spe_status); |
2426 |
u.d = float64_mul(u.d, tmp, &env->spe_status); |
2427 |
|
2428 |
return float64_to_uint32(u.d, &env->spe_status);
|
2429 |
} |
2430 |
|
2431 |
static always_inline int64_t _do_efdctsfz (uint64_t val)
|
2432 |
{ |
2433 |
CPU_DoubleU u; |
2434 |
float64 tmp; |
2435 |
|
2436 |
u.ll = val; |
2437 |
/* NaN are not treated the same way IEEE 754 does */
|
2438 |
if (unlikely(isnan(u.d)))
|
2439 |
return 0; |
2440 |
tmp = uint64_to_float64(1ULL << 32, &env->spe_status); |
2441 |
u.d = float64_mul(u.d, tmp, &env->spe_status); |
2442 |
|
2443 |
return float64_to_int32_round_to_zero(u.d, &env->spe_status);
|
2444 |
} |
2445 |
|
2446 |
static always_inline uint64_t _do_efdctufz (uint64_t val)
|
2447 |
{ |
2448 |
CPU_DoubleU u; |
2449 |
float64 tmp; |
2450 |
|
2451 |
u.ll = val; |
2452 |
/* NaN are not treated the same way IEEE 754 does */
|
2453 |
if (unlikely(isnan(u.d)))
|
2454 |
return 0; |
2455 |
tmp = uint64_to_float64(1ULL << 32, &env->spe_status); |
2456 |
u.d = float64_mul(u.d, tmp, &env->spe_status); |
2457 |
|
2458 |
return float64_to_uint32_round_to_zero(u.d, &env->spe_status);
|
2459 |
} |
2460 |
|
2461 |
void do_efdcfsf (void) |
2462 |
{ |
2463 |
T0_64 = _do_efdcfsf(T0_64); |
2464 |
} |
2465 |
|
2466 |
void do_efdcfuf (void) |
2467 |
{ |
2468 |
T0_64 = _do_efdcfuf(T0_64); |
2469 |
} |
2470 |
|
2471 |
void do_efdctsf (void) |
2472 |
{ |
2473 |
T0_64 = _do_efdctsf(T0_64); |
2474 |
} |
2475 |
|
2476 |
void do_efdctuf (void) |
2477 |
{ |
2478 |
T0_64 = _do_efdctuf(T0_64); |
2479 |
} |
2480 |
|
2481 |
void do_efdctsfz (void) |
2482 |
{ |
2483 |
T0_64 = _do_efdctsfz(T0_64); |
2484 |
} |
2485 |
|
2486 |
void do_efdctufz (void) |
2487 |
{ |
2488 |
T0_64 = _do_efdctufz(T0_64); |
2489 |
} |
2490 |
|
2491 |
/* Floating point conversion between single and double precision */
|
2492 |
static always_inline uint32_t _do_efscfd (uint64_t val)
|
2493 |
{ |
2494 |
CPU_DoubleU u1; |
2495 |
CPU_FloatU u2; |
2496 |
|
2497 |
u1.ll = val; |
2498 |
u2.f = float64_to_float32(u1.d, &env->spe_status); |
2499 |
|
2500 |
return u2.l;
|
2501 |
} |
2502 |
|
2503 |
static always_inline uint64_t _do_efdcfs (uint32_t val)
|
2504 |
{ |
2505 |
CPU_DoubleU u2; |
2506 |
CPU_FloatU u1; |
2507 |
|
2508 |
u1.l = val; |
2509 |
u2.d = float32_to_float64(u1.f, &env->spe_status); |
2510 |
|
2511 |
return u2.ll;
|
2512 |
} |
2513 |
|
2514 |
void do_efscfd (void) |
2515 |
{ |
2516 |
T0_64 = _do_efscfd(T0_64); |
2517 |
} |
2518 |
|
2519 |
void do_efdcfs (void) |
2520 |
{ |
2521 |
T0_64 = _do_efdcfs(T0_64); |
2522 |
} |
2523 |
|
2524 |
/* Single precision fixed-point vector arithmetic */
|
2525 |
/* evfsabs */
|
2526 |
DO_SPE_OP1(fsabs); |
2527 |
/* evfsnabs */
|
2528 |
DO_SPE_OP1(fsnabs); |
2529 |
/* evfsneg */
|
2530 |
DO_SPE_OP1(fsneg); |
2531 |
/* evfsadd */
|
2532 |
DO_SPE_OP2(fsadd); |
2533 |
/* evfssub */
|
2534 |
DO_SPE_OP2(fssub); |
2535 |
/* evfsmul */
|
2536 |
DO_SPE_OP2(fsmul); |
2537 |
/* evfsdiv */
|
2538 |
DO_SPE_OP2(fsdiv); |
2539 |
|
2540 |
/* Single-precision floating-point comparisons */
|
2541 |
static always_inline int _do_efscmplt (uint32_t op1, uint32_t op2) |
2542 |
{ |
2543 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2544 |
return _do_efststlt(op1, op2);
|
2545 |
} |
2546 |
|
2547 |
static always_inline int _do_efscmpgt (uint32_t op1, uint32_t op2) |
2548 |
{ |
2549 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2550 |
return _do_efststgt(op1, op2);
|
2551 |
} |
2552 |
|
2553 |
static always_inline int _do_efscmpeq (uint32_t op1, uint32_t op2) |
2554 |
{ |
2555 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2556 |
return _do_efststeq(op1, op2);
|
2557 |
} |
2558 |
|
2559 |
void do_efscmplt (void) |
2560 |
{ |
2561 |
T0 = _do_efscmplt(T0_64, T1_64); |
2562 |
} |
2563 |
|
2564 |
void do_efscmpgt (void) |
2565 |
{ |
2566 |
T0 = _do_efscmpgt(T0_64, T1_64); |
2567 |
} |
2568 |
|
2569 |
void do_efscmpeq (void) |
2570 |
{ |
2571 |
T0 = _do_efscmpeq(T0_64, T1_64); |
2572 |
} |
2573 |
|
2574 |
/* Single-precision floating-point vector comparisons */
|
2575 |
/* evfscmplt */
|
2576 |
DO_SPE_CMP(fscmplt); |
2577 |
/* evfscmpgt */
|
2578 |
DO_SPE_CMP(fscmpgt); |
2579 |
/* evfscmpeq */
|
2580 |
DO_SPE_CMP(fscmpeq); |
2581 |
/* evfststlt */
|
2582 |
DO_SPE_CMP(fststlt); |
2583 |
/* evfststgt */
|
2584 |
DO_SPE_CMP(fststgt); |
2585 |
/* evfststeq */
|
2586 |
DO_SPE_CMP(fststeq); |
2587 |
|
2588 |
/* Single-precision floating-point vector conversions */
|
2589 |
/* evfscfsi */
|
2590 |
DO_SPE_OP1(fscfsi); |
2591 |
/* evfscfui */
|
2592 |
DO_SPE_OP1(fscfui); |
2593 |
/* evfscfuf */
|
2594 |
DO_SPE_OP1(fscfuf); |
2595 |
/* evfscfsf */
|
2596 |
DO_SPE_OP1(fscfsf); |
2597 |
/* evfsctsi */
|
2598 |
DO_SPE_OP1(fsctsi); |
2599 |
/* evfsctui */
|
2600 |
DO_SPE_OP1(fsctui); |
2601 |
/* evfsctsiz */
|
2602 |
DO_SPE_OP1(fsctsiz); |
2603 |
/* evfsctuiz */
|
2604 |
DO_SPE_OP1(fsctuiz); |
2605 |
/* evfsctsf */
|
2606 |
DO_SPE_OP1(fsctsf); |
2607 |
/* evfsctuf */
|
2608 |
DO_SPE_OP1(fsctuf); |
2609 |
|
2610 |
/*****************************************************************************/
|
2611 |
/* Softmmu support */
|
2612 |
#if !defined (CONFIG_USER_ONLY)
|
2613 |
|
2614 |
#define MMUSUFFIX _mmu
|
2615 |
#ifdef __s390__
|
2616 |
# define GETPC() ((void*)((unsigned long)__builtin_return_address(0) & 0x7fffffffUL)) |
2617 |
#else
|
2618 |
# define GETPC() (__builtin_return_address(0)) |
2619 |
#endif
|
2620 |
|
2621 |
#define SHIFT 0 |
2622 |
#include "softmmu_template.h" |
2623 |
|
2624 |
#define SHIFT 1 |
2625 |
#include "softmmu_template.h" |
2626 |
|
2627 |
#define SHIFT 2 |
2628 |
#include "softmmu_template.h" |
2629 |
|
2630 |
#define SHIFT 3 |
2631 |
#include "softmmu_template.h" |
2632 |
|
2633 |
/* try to fill the TLB and return an exception if error. If retaddr is
|
2634 |
NULL, it means that the function was called in C code (i.e. not
|
2635 |
from generated code or from helper.c) */
|
2636 |
/* XXX: fix it to restore all registers */
|
2637 |
void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr) |
2638 |
{ |
2639 |
TranslationBlock *tb; |
2640 |
CPUState *saved_env; |
2641 |
unsigned long pc; |
2642 |
int ret;
|
2643 |
|
2644 |
/* XXX: hack to restore env in all cases, even if not called from
|
2645 |
generated code */
|
2646 |
saved_env = env; |
2647 |
env = cpu_single_env; |
2648 |
ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
|
2649 |
if (unlikely(ret != 0)) { |
2650 |
if (likely(retaddr)) {
|
2651 |
/* now we have a real cpu fault */
|
2652 |
pc = (unsigned long)retaddr; |
2653 |
tb = tb_find_pc(pc); |
2654 |
if (likely(tb)) {
|
2655 |
/* the PC is inside the translated code. It means that we have
|
2656 |
a virtual CPU fault */
|
2657 |
cpu_restore_state(tb, env, pc, NULL);
|
2658 |
} |
2659 |
} |
2660 |
do_raise_exception_err(env->exception_index, env->error_code); |
2661 |
} |
2662 |
env = saved_env; |
2663 |
} |
2664 |
|
2665 |
/* Software driven TLBs management */
|
2666 |
/* PowerPC 602/603 software TLB load instructions helpers */
|
2667 |
void do_load_6xx_tlb (int is_code) |
2668 |
{ |
2669 |
target_ulong RPN, CMP, EPN; |
2670 |
int way;
|
2671 |
|
2672 |
RPN = env->spr[SPR_RPA]; |
2673 |
if (is_code) {
|
2674 |
CMP = env->spr[SPR_ICMP]; |
2675 |
EPN = env->spr[SPR_IMISS]; |
2676 |
} else {
|
2677 |
CMP = env->spr[SPR_DCMP]; |
2678 |
EPN = env->spr[SPR_DMISS]; |
2679 |
} |
2680 |
way = (env->spr[SPR_SRR1] >> 17) & 1; |
2681 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2682 |
if (loglevel != 0) { |
2683 |
fprintf(logfile, "%s: EPN " TDX " " ADDRX " PTE0 " ADDRX |
2684 |
" PTE1 " ADDRX " way %d\n", |
2685 |
__func__, T0, EPN, CMP, RPN, way); |
2686 |
} |
2687 |
#endif
|
2688 |
/* Store this TLB */
|
2689 |
ppc6xx_tlb_store(env, (uint32_t)(T0 & TARGET_PAGE_MASK), |
2690 |
way, is_code, CMP, RPN); |
2691 |
} |
2692 |
|
2693 |
void do_load_74xx_tlb (int is_code) |
2694 |
{ |
2695 |
target_ulong RPN, CMP, EPN; |
2696 |
int way;
|
2697 |
|
2698 |
RPN = env->spr[SPR_PTELO]; |
2699 |
CMP = env->spr[SPR_PTEHI]; |
2700 |
EPN = env->spr[SPR_TLBMISS] & ~0x3;
|
2701 |
way = env->spr[SPR_TLBMISS] & 0x3;
|
2702 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2703 |
if (loglevel != 0) { |
2704 |
fprintf(logfile, "%s: EPN " TDX " " ADDRX " PTE0 " ADDRX |
2705 |
" PTE1 " ADDRX " way %d\n", |
2706 |
__func__, T0, EPN, CMP, RPN, way); |
2707 |
} |
2708 |
#endif
|
2709 |
/* Store this TLB */
|
2710 |
ppc6xx_tlb_store(env, (uint32_t)(T0 & TARGET_PAGE_MASK), |
2711 |
way, is_code, CMP, RPN); |
2712 |
} |
2713 |
|
2714 |
static always_inline target_ulong booke_tlb_to_page_size (int size) |
2715 |
{ |
2716 |
return 1024 << (2 * size); |
2717 |
} |
2718 |
|
2719 |
static always_inline int booke_page_size_to_tlb (target_ulong page_size) |
2720 |
{ |
2721 |
int size;
|
2722 |
|
2723 |
switch (page_size) {
|
2724 |
case 0x00000400UL: |
2725 |
size = 0x0;
|
2726 |
break;
|
2727 |
case 0x00001000UL: |
2728 |
size = 0x1;
|
2729 |
break;
|
2730 |
case 0x00004000UL: |
2731 |
size = 0x2;
|
2732 |
break;
|
2733 |
case 0x00010000UL: |
2734 |
size = 0x3;
|
2735 |
break;
|
2736 |
case 0x00040000UL: |
2737 |
size = 0x4;
|
2738 |
break;
|
2739 |
case 0x00100000UL: |
2740 |
size = 0x5;
|
2741 |
break;
|
2742 |
case 0x00400000UL: |
2743 |
size = 0x6;
|
2744 |
break;
|
2745 |
case 0x01000000UL: |
2746 |
size = 0x7;
|
2747 |
break;
|
2748 |
case 0x04000000UL: |
2749 |
size = 0x8;
|
2750 |
break;
|
2751 |
case 0x10000000UL: |
2752 |
size = 0x9;
|
2753 |
break;
|
2754 |
case 0x40000000UL: |
2755 |
size = 0xA;
|
2756 |
break;
|
2757 |
#if defined (TARGET_PPC64)
|
2758 |
case 0x000100000000ULL: |
2759 |
size = 0xB;
|
2760 |
break;
|
2761 |
case 0x000400000000ULL: |
2762 |
size = 0xC;
|
2763 |
break;
|
2764 |
case 0x001000000000ULL: |
2765 |
size = 0xD;
|
2766 |
break;
|
2767 |
case 0x004000000000ULL: |
2768 |
size = 0xE;
|
2769 |
break;
|
2770 |
case 0x010000000000ULL: |
2771 |
size = 0xF;
|
2772 |
break;
|
2773 |
#endif
|
2774 |
default:
|
2775 |
size = -1;
|
2776 |
break;
|
2777 |
} |
2778 |
|
2779 |
return size;
|
2780 |
} |
2781 |
|
2782 |
/* Helpers for 4xx TLB management */
|
2783 |
void do_4xx_tlbre_lo (void) |
2784 |
{ |
2785 |
ppcemb_tlb_t *tlb; |
2786 |
int size;
|
2787 |
|
2788 |
T0 &= 0x3F;
|
2789 |
tlb = &env->tlb[T0].tlbe; |
2790 |
T0 = tlb->EPN; |
2791 |
if (tlb->prot & PAGE_VALID)
|
2792 |
T0 |= 0x400;
|
2793 |
size = booke_page_size_to_tlb(tlb->size); |
2794 |
if (size < 0 || size > 0x7) |
2795 |
size = 1;
|
2796 |
T0 |= size << 7;
|
2797 |
env->spr[SPR_40x_PID] = tlb->PID; |
2798 |
} |
2799 |
|
2800 |
void do_4xx_tlbre_hi (void) |
2801 |
{ |
2802 |
ppcemb_tlb_t *tlb; |
2803 |
|
2804 |
T0 &= 0x3F;
|
2805 |
tlb = &env->tlb[T0].tlbe; |
2806 |
T0 = tlb->RPN; |
2807 |
if (tlb->prot & PAGE_EXEC)
|
2808 |
T0 |= 0x200;
|
2809 |
if (tlb->prot & PAGE_WRITE)
|
2810 |
T0 |= 0x100;
|
2811 |
} |
2812 |
|
2813 |
void do_4xx_tlbwe_hi (void) |
2814 |
{ |
2815 |
ppcemb_tlb_t *tlb; |
2816 |
target_ulong page, end; |
2817 |
|
2818 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2819 |
if (loglevel != 0) { |
2820 |
fprintf(logfile, "%s T0 " TDX " T1 " TDX "\n", __func__, T0, T1); |
2821 |
} |
2822 |
#endif
|
2823 |
T0 &= 0x3F;
|
2824 |
tlb = &env->tlb[T0].tlbe; |
2825 |
/* Invalidate previous TLB (if it's valid) */
|
2826 |
if (tlb->prot & PAGE_VALID) {
|
2827 |
end = tlb->EPN + tlb->size; |
2828 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2829 |
if (loglevel != 0) { |
2830 |
fprintf(logfile, "%s: invalidate old TLB %d start " ADDRX
|
2831 |
" end " ADDRX "\n", __func__, (int)T0, tlb->EPN, end); |
2832 |
} |
2833 |
#endif
|
2834 |
for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
|
2835 |
tlb_flush_page(env, page); |
2836 |
} |
2837 |
tlb->size = booke_tlb_to_page_size((T1 >> 7) & 0x7); |
2838 |
/* We cannot handle TLB size < TARGET_PAGE_SIZE.
|
2839 |
* If this ever occurs, one should use the ppcemb target instead
|
2840 |
* of the ppc or ppc64 one
|
2841 |
*/
|
2842 |
if ((T1 & 0x40) && tlb->size < TARGET_PAGE_SIZE) { |
2843 |
cpu_abort(env, "TLB size " TARGET_FMT_lu " < %u " |
2844 |
"are not supported (%d)\n",
|
2845 |
tlb->size, TARGET_PAGE_SIZE, (int)((T1 >> 7) & 0x7)); |
2846 |
} |
2847 |
tlb->EPN = T1 & ~(tlb->size - 1);
|
2848 |
if (T1 & 0x40) |
2849 |
tlb->prot |= PAGE_VALID; |
2850 |
else
|
2851 |
tlb->prot &= ~PAGE_VALID; |
2852 |
if (T1 & 0x20) { |
2853 |
/* XXX: TO BE FIXED */
|
2854 |
cpu_abort(env, "Little-endian TLB entries are not supported by now\n");
|
2855 |
} |
2856 |
tlb->PID = env->spr[SPR_40x_PID]; /* PID */
|
2857 |
tlb->attr = T1 & 0xFF;
|
2858 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2859 |
if (loglevel != 0) { |
2860 |
fprintf(logfile, "%s: set up TLB %d RPN " PADDRX " EPN " ADDRX |
2861 |
" size " ADDRX " prot %c%c%c%c PID %d\n", __func__, |
2862 |
(int)T0, tlb->RPN, tlb->EPN, tlb->size,
|
2863 |
tlb->prot & PAGE_READ ? 'r' : '-', |
2864 |
tlb->prot & PAGE_WRITE ? 'w' : '-', |
2865 |
tlb->prot & PAGE_EXEC ? 'x' : '-', |
2866 |
tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID); |
2867 |
} |
2868 |
#endif
|
2869 |
/* Invalidate new TLB (if valid) */
|
2870 |
if (tlb->prot & PAGE_VALID) {
|
2871 |
end = tlb->EPN + tlb->size; |
2872 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2873 |
if (loglevel != 0) { |
2874 |
fprintf(logfile, "%s: invalidate TLB %d start " ADDRX
|
2875 |
" end " ADDRX "\n", __func__, (int)T0, tlb->EPN, end); |
2876 |
} |
2877 |
#endif
|
2878 |
for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
|
2879 |
tlb_flush_page(env, page); |
2880 |
} |
2881 |
} |
2882 |
|
2883 |
void do_4xx_tlbwe_lo (void) |
2884 |
{ |
2885 |
ppcemb_tlb_t *tlb; |
2886 |
|
2887 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2888 |
if (loglevel != 0) { |
2889 |
fprintf(logfile, "%s T0 " TDX " T1 " TDX "\n", __func__, T0, T1); |
2890 |
} |
2891 |
#endif
|
2892 |
T0 &= 0x3F;
|
2893 |
tlb = &env->tlb[T0].tlbe; |
2894 |
tlb->RPN = T1 & 0xFFFFFC00;
|
2895 |
tlb->prot = PAGE_READ; |
2896 |
if (T1 & 0x200) |
2897 |
tlb->prot |= PAGE_EXEC; |
2898 |
if (T1 & 0x100) |
2899 |
tlb->prot |= PAGE_WRITE; |
2900 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2901 |
if (loglevel != 0) { |
2902 |
fprintf(logfile, "%s: set up TLB %d RPN " PADDRX " EPN " ADDRX |
2903 |
" size " ADDRX " prot %c%c%c%c PID %d\n", __func__, |
2904 |
(int)T0, tlb->RPN, tlb->EPN, tlb->size,
|
2905 |
tlb->prot & PAGE_READ ? 'r' : '-', |
2906 |
tlb->prot & PAGE_WRITE ? 'w' : '-', |
2907 |
tlb->prot & PAGE_EXEC ? 'x' : '-', |
2908 |
tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID); |
2909 |
} |
2910 |
#endif
|
2911 |
} |
2912 |
|
2913 |
/* PowerPC 440 TLB management */
|
2914 |
void do_440_tlbwe (int word) |
2915 |
{ |
2916 |
ppcemb_tlb_t *tlb; |
2917 |
target_ulong EPN, RPN, size; |
2918 |
int do_flush_tlbs;
|
2919 |
|
2920 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2921 |
if (loglevel != 0) { |
2922 |
fprintf(logfile, "%s word %d T0 " TDX " T1 " TDX "\n", |
2923 |
__func__, word, T0, T1); |
2924 |
} |
2925 |
#endif
|
2926 |
do_flush_tlbs = 0;
|
2927 |
T0 &= 0x3F;
|
2928 |
tlb = &env->tlb[T0].tlbe; |
2929 |
switch (word) {
|
2930 |
default:
|
2931 |
/* Just here to please gcc */
|
2932 |
case 0: |
2933 |
EPN = T1 & 0xFFFFFC00;
|
2934 |
if ((tlb->prot & PAGE_VALID) && EPN != tlb->EPN)
|
2935 |
do_flush_tlbs = 1;
|
2936 |
tlb->EPN = EPN; |
2937 |
size = booke_tlb_to_page_size((T1 >> 4) & 0xF); |
2938 |
if ((tlb->prot & PAGE_VALID) && tlb->size < size)
|
2939 |
do_flush_tlbs = 1;
|
2940 |
tlb->size = size; |
2941 |
tlb->attr &= ~0x1;
|
2942 |
tlb->attr |= (T1 >> 8) & 1; |
2943 |
if (T1 & 0x200) { |
2944 |
tlb->prot |= PAGE_VALID; |
2945 |
} else {
|
2946 |
if (tlb->prot & PAGE_VALID) {
|
2947 |
tlb->prot &= ~PAGE_VALID; |
2948 |
do_flush_tlbs = 1;
|
2949 |
} |
2950 |
} |
2951 |
tlb->PID = env->spr[SPR_440_MMUCR] & 0x000000FF;
|
2952 |
if (do_flush_tlbs)
|
2953 |
tlb_flush(env, 1);
|
2954 |
break;
|
2955 |
case 1: |
2956 |
RPN = T1 & 0xFFFFFC0F;
|
2957 |
if ((tlb->prot & PAGE_VALID) && tlb->RPN != RPN)
|
2958 |
tlb_flush(env, 1);
|
2959 |
tlb->RPN = RPN; |
2960 |
break;
|
2961 |
case 2: |
2962 |
tlb->attr = (tlb->attr & 0x1) | (T1 & 0x0000FF00); |
2963 |
tlb->prot = tlb->prot & PAGE_VALID; |
2964 |
if (T1 & 0x1) |
2965 |
tlb->prot |= PAGE_READ << 4;
|
2966 |
if (T1 & 0x2) |
2967 |
tlb->prot |= PAGE_WRITE << 4;
|
2968 |
if (T1 & 0x4) |
2969 |
tlb->prot |= PAGE_EXEC << 4;
|
2970 |
if (T1 & 0x8) |
2971 |
tlb->prot |= PAGE_READ; |
2972 |
if (T1 & 0x10) |
2973 |
tlb->prot |= PAGE_WRITE; |
2974 |
if (T1 & 0x20) |
2975 |
tlb->prot |= PAGE_EXEC; |
2976 |
break;
|
2977 |
} |
2978 |
} |
2979 |
|
2980 |
void do_440_tlbre (int word) |
2981 |
{ |
2982 |
ppcemb_tlb_t *tlb; |
2983 |
int size;
|
2984 |
|
2985 |
T0 &= 0x3F;
|
2986 |
tlb = &env->tlb[T0].tlbe; |
2987 |
switch (word) {
|
2988 |
default:
|
2989 |
/* Just here to please gcc */
|
2990 |
case 0: |
2991 |
T0 = tlb->EPN; |
2992 |
size = booke_page_size_to_tlb(tlb->size); |
2993 |
if (size < 0 || size > 0xF) |
2994 |
size = 1;
|
2995 |
T0 |= size << 4;
|
2996 |
if (tlb->attr & 0x1) |
2997 |
T0 |= 0x100;
|
2998 |
if (tlb->prot & PAGE_VALID)
|
2999 |
T0 |= 0x200;
|
3000 |
env->spr[SPR_440_MMUCR] &= ~0x000000FF;
|
3001 |
env->spr[SPR_440_MMUCR] |= tlb->PID; |
3002 |
break;
|
3003 |
case 1: |
3004 |
T0 = tlb->RPN; |
3005 |
break;
|
3006 |
case 2: |
3007 |
T0 = tlb->attr & ~0x1;
|
3008 |
if (tlb->prot & (PAGE_READ << 4)) |
3009 |
T0 |= 0x1;
|
3010 |
if (tlb->prot & (PAGE_WRITE << 4)) |
3011 |
T0 |= 0x2;
|
3012 |
if (tlb->prot & (PAGE_EXEC << 4)) |
3013 |
T0 |= 0x4;
|
3014 |
if (tlb->prot & PAGE_READ)
|
3015 |
T0 |= 0x8;
|
3016 |
if (tlb->prot & PAGE_WRITE)
|
3017 |
T0 |= 0x10;
|
3018 |
if (tlb->prot & PAGE_EXEC)
|
3019 |
T0 |= 0x20;
|
3020 |
break;
|
3021 |
} |
3022 |
} |
3023 |
#endif /* !CONFIG_USER_ONLY */ |