root / target-ppc / op_helper.c @ e864cabd
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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 "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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#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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//#define FLUSH_ALL_TLBS
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|
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/*****************************************************************************/
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/* Exceptions processing helpers */
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void cpu_loop_exit (void) |
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{
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longjmp(env->jmp_env, 1);
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} |
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|
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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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switch (exception) {
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case EXCP_PROGRAM:
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if (error_code == EXCP_FP && msr_fe0 == 0 && msr_fe1 == 0) |
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return;
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break;
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default:
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break;
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} |
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env->exception_index = exception; |
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env->error_code = error_code; |
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cpu_loop_exit(); |
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} |
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|
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void 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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/*****************************************************************************/
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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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|
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void do_load_xer (void) |
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{
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T0 = (xer_so << XER_SO) | |
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(xer_ov << XER_OV) | |
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(xer_ca << XER_CA) | |
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(xer_bc << XER_BC) | |
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(xer_cmp << XER_CMP); |
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} |
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void do_store_xer (void) |
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{
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xer_so = (T0 >> XER_SO) & 0x01;
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xer_ov = (T0 >> XER_OV) & 0x01;
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xer_ca = (T0 >> XER_CA) & 0x01;
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xer_cmp = (T0 >> XER_CMP) & 0xFF;
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xer_bc = (T0 >> XER_BC) & 0x7F;
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} |
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void do_load_fpscr (void) |
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{
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/* The 32 MSB of the target fpr are undefined.
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* They'll be zero...
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*/
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union {
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float64 d; |
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struct {
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uint32_t u[2];
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} s; |
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} u; |
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int i;
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#if defined(WORDS_BIGENDIAN)
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#define WORD0 0 |
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#define WORD1 1 |
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#else
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#define WORD0 1 |
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#define WORD1 0 |
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#endif
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u.s.u[WORD0] = 0;
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u.s.u[WORD1] = 0;
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for (i = 0; i < 8; i++) |
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u.s.u[WORD1] |= env->fpscr[i] << (4 * i);
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FT0 = u.d; |
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} |
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void do_store_fpscr (uint32_t mask)
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{
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/*
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* We use only the 32 LSB of the incoming fpr
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*/
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union {
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double d;
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struct {
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uint32_t u[2];
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} s; |
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} u; |
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int i, rnd_type;
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u.d = FT0; |
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if (mask & 0x80) |
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env->fpscr[0] = (env->fpscr[0] & 0x9) | ((u.s.u[WORD1] >> 28) & ~0x9); |
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for (i = 1; i < 7; i++) { |
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if (mask & (1 << (7 - i))) |
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env->fpscr[i] = (u.s.u[WORD1] >> (4 * (7 - i))) & 0xF; |
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} |
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/* TODO: update FEX & VX */
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/* Set rounding mode */
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switch (env->fpscr[0] & 0x3) { |
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case 0: |
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/* Best approximation (round to nearest) */
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rnd_type = float_round_nearest_even; |
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break;
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case 1: |
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/* Smaller magnitude (round toward zero) */
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rnd_type = float_round_to_zero; |
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break;
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case 2: |
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/* Round toward +infinite */
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rnd_type = float_round_up; |
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break;
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default:
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case 3: |
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/* Round toward -infinite */
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rnd_type = float_round_down; |
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break;
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} |
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set_float_rounding_mode(rnd_type, &env->fp_status); |
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} |
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/*****************************************************************************/
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/* Fixed point operations helpers */
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#if defined(TARGET_PPC64)
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static void add128 (uint64_t *plow, uint64_t *phigh, uint64_t a, uint64_t b) |
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{
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*plow += a; |
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/* carry test */
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if (*plow < a)
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(*phigh)++; |
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*phigh += b; |
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} |
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static void neg128 (uint64_t *plow, uint64_t *phigh) |
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{
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*plow = ~ *plow; |
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*phigh = ~ *phigh; |
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add128(plow, phigh, 1, 0); |
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} |
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static void mul64 (uint64_t *plow, uint64_t *phigh, uint64_t a, uint64_t b) |
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{
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uint32_t a0, a1, b0, b1; |
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uint64_t v; |
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a0 = a; |
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a1 = a >> 32;
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b0 = b; |
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b1 = b >> 32;
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v = (uint64_t)a0 * (uint64_t)b0; |
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*plow = v; |
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*phigh = 0;
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v = (uint64_t)a0 * (uint64_t)b1; |
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add128(plow, phigh, v << 32, v >> 32); |
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v = (uint64_t)a1 * (uint64_t)b0; |
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add128(plow, phigh, v << 32, v >> 32); |
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v = (uint64_t)a1 * (uint64_t)b1; |
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*phigh += v; |
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#if defined(DEBUG_MULDIV)
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printf("mul: 0x%016llx * 0x%016llx = 0x%016llx%016llx\n",
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a, b, *phigh, *plow); |
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#endif
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} |
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void do_mul64 (uint64_t *plow, uint64_t *phigh)
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{
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mul64(plow, phigh, T0, T1); |
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} |
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static void imul64 (uint64_t *plow, uint64_t *phigh, int64_t a, int64_t b) |
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{
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int sa, sb;
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sa = (a < 0);
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if (sa)
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a = -a; |
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sb = (b < 0);
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if (sb)
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b = -b; |
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mul64(plow, phigh, a, b); |
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if (sa ^ sb) {
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neg128(plow, phigh); |
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} |
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} |
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void do_imul64 (uint64_t *plow, uint64_t *phigh)
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{
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imul64(plow, phigh, T0, T1); |
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} |
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#endif
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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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if (likely(!((uint32_t)T1 &
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((uint32_t)T1 ^ (uint32_t)T0) & (1UL << 31)))) { |
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xer_ov = 0;
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} else {
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xer_so = 1;
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xer_ov = 1;
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} |
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if (likely(T1 != 0)) |
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xer_ca = 1;
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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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if (likely(!((uint64_t)T1 &
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((uint64_t)T1 ^ (uint64_t)T0) & (1ULL << 63)))) { |
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xer_ov = 0;
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} else {
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xer_so = 1;
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xer_ov = 1;
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} |
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if (likely(T1 != 0)) |
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xer_ca = 1;
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} |
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#endif
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|
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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 == -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_so = 1;
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xer_ov = 1;
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T0 = (-1) * ((uint32_t)T0 >> 31); |
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} |
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} |
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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 == -1ULL) || |
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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; |
| 336 |
} else {
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xer_so = 1;
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xer_ov = 1;
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T0 = (-1ULL) * ((uint64_t)T0 >> 63); |
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} |
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} |
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#endif
|
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|
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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; |
| 349 |
} else {
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xer_so = 1;
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xer_ov = 1;
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T0 = 0;
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} |
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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; |
| 362 |
} else {
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xer_so = 1;
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xer_ov = 1;
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T0 = 0;
|
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} |
| 367 |
} |
| 368 |
#endif
|
| 369 |
|
| 370 |
void do_mullwo (void) |
| 371 |
{
|
| 372 |
int64_t res = (int64_t)T0 * (int64_t)T1; |
| 373 |
|
| 374 |
if (likely((int32_t)res == res)) {
|
| 375 |
xer_ov = 0;
|
| 376 |
} else {
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xer_ov = 1;
|
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xer_so = 1;
|
| 379 |
} |
| 380 |
T0 = (int32_t)res; |
| 381 |
} |
| 382 |
|
| 383 |
#if defined(TARGET_PPC64)
|
| 384 |
void do_mulldo (void) |
| 385 |
{
|
| 386 |
int64_t th; |
| 387 |
uint64_t tl; |
| 388 |
|
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do_imul64(&tl, &th); |
| 390 |
if (likely(th == 0)) { |
| 391 |
xer_ov = 0;
|
| 392 |
} else {
|
| 393 |
xer_ov = 1;
|
| 394 |
xer_so = 1;
|
| 395 |
} |
| 396 |
T0 = (int64_t)tl; |
| 397 |
} |
| 398 |
#endif
|
| 399 |
|
| 400 |
void do_nego (void) |
| 401 |
{
|
| 402 |
if (likely((int32_t)T0 != INT32_MIN)) {
|
| 403 |
xer_ov = 0;
|
| 404 |
T0 = -(int32_t)T0; |
| 405 |
} else {
|
| 406 |
xer_ov = 1;
|
| 407 |
xer_so = 1;
|
| 408 |
} |
| 409 |
} |
| 410 |
|
| 411 |
#if defined(TARGET_PPC64)
|
| 412 |
void do_nego_64 (void) |
| 413 |
{
|
| 414 |
if (likely((int64_t)T0 != INT64_MIN)) {
|
| 415 |
xer_ov = 0;
|
| 416 |
T0 = -(int64_t)T0; |
| 417 |
} else {
|
| 418 |
xer_ov = 1;
|
| 419 |
xer_so = 1;
|
| 420 |
} |
| 421 |
} |
| 422 |
#endif
|
| 423 |
|
| 424 |
void do_subfe (void) |
| 425 |
{
|
| 426 |
T0 = T1 + ~T0 + xer_ca; |
| 427 |
if (likely((uint32_t)T0 >= (uint32_t)T1 &&
|
| 428 |
(xer_ca == 0 || (uint32_t)T0 != (uint32_t)T1))) {
|
| 429 |
xer_ca = 0;
|
| 430 |
} else {
|
| 431 |
xer_ca = 1;
|
| 432 |
} |
| 433 |
} |
| 434 |
|
| 435 |
#if defined(TARGET_PPC64)
|
| 436 |
void do_subfe_64 (void) |
| 437 |
{
|
| 438 |
T0 = T1 + ~T0 + xer_ca; |
| 439 |
if (likely((uint64_t)T0 >= (uint64_t)T1 &&
|
| 440 |
(xer_ca == 0 || (uint64_t)T0 != (uint64_t)T1))) {
|
| 441 |
xer_ca = 0;
|
| 442 |
} else {
|
| 443 |
xer_ca = 1;
|
| 444 |
} |
| 445 |
} |
| 446 |
#endif
|
| 447 |
|
| 448 |
void do_subfmeo (void) |
| 449 |
{
|
| 450 |
T1 = T0; |
| 451 |
T0 = ~T0 + xer_ca - 1;
|
| 452 |
if (likely(!((uint32_t)~T1 & ((uint32_t)~T1 ^ (uint32_t)T0) &
|
| 453 |
(1UL << 31)))) { |
| 454 |
xer_ov = 0;
|
| 455 |
} else {
|
| 456 |
xer_so = 1;
|
| 457 |
xer_ov = 1;
|
| 458 |
} |
| 459 |
if (likely((uint32_t)T1 != UINT32_MAX))
|
| 460 |
xer_ca = 1;
|
| 461 |
} |
| 462 |
|
| 463 |
#if defined(TARGET_PPC64)
|
| 464 |
void do_subfmeo_64 (void) |
| 465 |
{
|
| 466 |
T1 = T0; |
| 467 |
T0 = ~T0 + xer_ca - 1;
|
| 468 |
if (likely(!((uint64_t)~T1 & ((uint64_t)~T1 ^ (uint64_t)T0) &
|
| 469 |
(1ULL << 63)))) { |
| 470 |
xer_ov = 0;
|
| 471 |
} else {
|
| 472 |
xer_so = 1;
|
| 473 |
xer_ov = 1;
|
| 474 |
} |
| 475 |
if (likely((uint64_t)T1 != UINT64_MAX))
|
| 476 |
xer_ca = 1;
|
| 477 |
} |
| 478 |
#endif
|
| 479 |
|
| 480 |
void do_subfzeo (void) |
| 481 |
{
|
| 482 |
T1 = T0; |
| 483 |
T0 = ~T0 + xer_ca; |
| 484 |
if (likely(!(((uint32_t)~T1 ^ UINT32_MAX) &
|
| 485 |
((uint32_t)(~T1) ^ (uint32_t)T0) & (1UL << 31)))) { |
| 486 |
xer_ov = 0;
|
| 487 |
} else {
|
| 488 |
xer_ov = 1;
|
| 489 |
xer_so = 1;
|
| 490 |
} |
| 491 |
if (likely((uint32_t)T0 >= (uint32_t)~T1)) {
|
| 492 |
xer_ca = 0;
|
| 493 |
} else {
|
| 494 |
xer_ca = 1;
|
| 495 |
} |
| 496 |
} |
| 497 |
|
| 498 |
#if defined(TARGET_PPC64)
|
| 499 |
void do_subfzeo_64 (void) |
| 500 |
{
|
| 501 |
T1 = T0; |
| 502 |
T0 = ~T0 + xer_ca; |
| 503 |
if (likely(!(((uint64_t)~T1 ^ UINT64_MAX) &
|
| 504 |
((uint64_t)(~T1) ^ (uint64_t)T0) & (1ULL << 63)))) { |
| 505 |
xer_ov = 0;
|
| 506 |
} else {
|
| 507 |
xer_ov = 1;
|
| 508 |
xer_so = 1;
|
| 509 |
} |
| 510 |
if (likely((uint64_t)T0 >= (uint64_t)~T1)) {
|
| 511 |
xer_ca = 0;
|
| 512 |
} else {
|
| 513 |
xer_ca = 1;
|
| 514 |
} |
| 515 |
} |
| 516 |
#endif
|
| 517 |
|
| 518 |
/* shift right arithmetic helper */
|
| 519 |
void do_sraw (void) |
| 520 |
{
|
| 521 |
int32_t ret; |
| 522 |
|
| 523 |
if (likely(!(T1 & 0x20UL))) { |
| 524 |
if (likely((uint32_t)T1 != 0)) { |
| 525 |
ret = (int32_t)T0 >> (T1 & 0x1fUL);
|
| 526 |
if (likely(ret >= 0 || ((int32_t)T0 & ((1 << T1) - 1)) == 0)) { |
| 527 |
xer_ca = 0;
|
| 528 |
} else {
|
| 529 |
xer_ca = 1;
|
| 530 |
} |
| 531 |
} else {
|
| 532 |
ret = T0; |
| 533 |
xer_ca = 0;
|
| 534 |
} |
| 535 |
} else {
|
| 536 |
ret = (-1) * ((uint32_t)T0 >> 31); |
| 537 |
if (likely(ret >= 0 || ((uint32_t)T0 & ~0x80000000UL) == 0)) { |
| 538 |
xer_ca = 0;
|
| 539 |
} else {
|
| 540 |
xer_ca = 1;
|
| 541 |
} |
| 542 |
} |
| 543 |
T0 = ret; |
| 544 |
} |
| 545 |
|
| 546 |
#if defined(TARGET_PPC64)
|
| 547 |
void do_srad (void) |
| 548 |
{
|
| 549 |
int64_t ret; |
| 550 |
|
| 551 |
if (likely(!(T1 & 0x40UL))) { |
| 552 |
if (likely((uint64_t)T1 != 0)) { |
| 553 |
ret = (int64_t)T0 >> (T1 & 0x3FUL);
|
| 554 |
if (likely(ret >= 0 || ((int64_t)T0 & ((1 << T1) - 1)) == 0)) { |
| 555 |
xer_ca = 0;
|
| 556 |
} else {
|
| 557 |
xer_ca = 1;
|
| 558 |
} |
| 559 |
} else {
|
| 560 |
ret = T0; |
| 561 |
xer_ca = 0;
|
| 562 |
} |
| 563 |
} else {
|
| 564 |
ret = (-1) * ((uint64_t)T0 >> 63); |
| 565 |
if (likely(ret >= 0 || ((uint64_t)T0 & ~0x8000000000000000ULL) == 0)) { |
| 566 |
xer_ca = 0;
|
| 567 |
} else {
|
| 568 |
xer_ca = 1;
|
| 569 |
} |
| 570 |
} |
| 571 |
T0 = ret; |
| 572 |
} |
| 573 |
#endif
|
| 574 |
|
| 575 |
static inline int popcnt (uint32_t val) |
| 576 |
{
|
| 577 |
int i;
|
| 578 |
|
| 579 |
for (i = 0; val != 0;) |
| 580 |
val = val ^ (val - 1);
|
| 581 |
|
| 582 |
return i;
|
| 583 |
} |
| 584 |
|
| 585 |
void do_popcntb (void) |
| 586 |
{
|
| 587 |
uint32_t ret; |
| 588 |
int i;
|
| 589 |
|
| 590 |
ret = 0;
|
| 591 |
for (i = 0; i < 32; i += 8) |
| 592 |
ret |= popcnt((T0 >> i) & 0xFF) << i;
|
| 593 |
T0 = ret; |
| 594 |
} |
| 595 |
|
| 596 |
#if defined(TARGET_PPC64)
|
| 597 |
void do_popcntb_64 (void) |
| 598 |
{
|
| 599 |
uint64_t ret; |
| 600 |
int i;
|
| 601 |
|
| 602 |
ret = 0;
|
| 603 |
for (i = 0; i < 64; i += 8) |
| 604 |
ret |= popcnt((T0 >> i) & 0xFF) << i;
|
| 605 |
T0 = ret; |
| 606 |
} |
| 607 |
#endif
|
| 608 |
|
| 609 |
/*****************************************************************************/
|
| 610 |
/* Floating point operations helpers */
|
| 611 |
void do_fctiw (void) |
| 612 |
{
|
| 613 |
union {
|
| 614 |
double d;
|
| 615 |
uint64_t i; |
| 616 |
} p; |
| 617 |
|
| 618 |
p.i = float64_to_int32(FT0, &env->fp_status); |
| 619 |
#if USE_PRECISE_EMULATION
|
| 620 |
/* XXX: higher bits are not supposed to be significant.
|
| 621 |
* to make tests easier, return the same as a real PowerPC 750 (aka G3)
|
| 622 |
*/
|
| 623 |
p.i |= 0xFFF80000ULL << 32; |
| 624 |
#endif
|
| 625 |
FT0 = p.d; |
| 626 |
} |
| 627 |
|
| 628 |
void do_fctiwz (void) |
| 629 |
{
|
| 630 |
union {
|
| 631 |
double d;
|
| 632 |
uint64_t i; |
| 633 |
} p; |
| 634 |
|
| 635 |
p.i = float64_to_int32_round_to_zero(FT0, &env->fp_status); |
| 636 |
#if USE_PRECISE_EMULATION
|
| 637 |
/* XXX: higher bits are not supposed to be significant.
|
| 638 |
* to make tests easier, return the same as a real PowerPC 750 (aka G3)
|
| 639 |
*/
|
| 640 |
p.i |= 0xFFF80000ULL << 32; |
| 641 |
#endif
|
| 642 |
FT0 = p.d; |
| 643 |
} |
| 644 |
|
| 645 |
#if USE_PRECISE_EMULATION
|
| 646 |
void do_fmadd (void) |
| 647 |
{
|
| 648 |
#ifdef FLOAT128
|
| 649 |
float128 ft0_128, ft1_128; |
| 650 |
|
| 651 |
ft0_128 = float64_to_float128(FT0, &env->fp_status); |
| 652 |
ft1_128 = float64_to_float128(FT1, &env->fp_status); |
| 653 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
| 654 |
ft1_128 = float64_to_float128(FT2, &env->fp_status); |
| 655 |
ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status); |
| 656 |
FT0 = float128_to_float64(ft0_128, &env->fp_status); |
| 657 |
#else
|
| 658 |
/* This is OK on x86 hosts */
|
| 659 |
FT0 = (FT0 * FT1) + FT2; |
| 660 |
#endif
|
| 661 |
} |
| 662 |
|
| 663 |
void do_fmsub (void) |
| 664 |
{
|
| 665 |
#ifdef FLOAT128
|
| 666 |
float128 ft0_128, ft1_128; |
| 667 |
|
| 668 |
ft0_128 = float64_to_float128(FT0, &env->fp_status); |
| 669 |
ft1_128 = float64_to_float128(FT1, &env->fp_status); |
| 670 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
| 671 |
ft1_128 = float64_to_float128(FT2, &env->fp_status); |
| 672 |
ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status); |
| 673 |
FT0 = float128_to_float64(ft0_128, &env->fp_status); |
| 674 |
#else
|
| 675 |
/* This is OK on x86 hosts */
|
| 676 |
FT0 = (FT0 * FT1) - FT2; |
| 677 |
#endif
|
| 678 |
} |
| 679 |
#endif /* USE_PRECISE_EMULATION */ |
| 680 |
|
| 681 |
void do_fnmadd (void) |
| 682 |
{
|
| 683 |
#if USE_PRECISE_EMULATION
|
| 684 |
#ifdef FLOAT128
|
| 685 |
float128 ft0_128, ft1_128; |
| 686 |
|
| 687 |
ft0_128 = float64_to_float128(FT0, &env->fp_status); |
| 688 |
ft1_128 = float64_to_float128(FT1, &env->fp_status); |
| 689 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
| 690 |
ft1_128 = float64_to_float128(FT2, &env->fp_status); |
| 691 |
ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status); |
| 692 |
FT0 = float128_to_float64(ft0_128, &env->fp_status); |
| 693 |
#else
|
| 694 |
/* This is OK on x86 hosts */
|
| 695 |
FT0 = (FT0 * FT1) + FT2; |
| 696 |
#endif
|
| 697 |
#else
|
| 698 |
FT0 = float64_mul(FT0, FT1, &env->fp_status); |
| 699 |
FT0 = float64_add(FT0, FT2, &env->fp_status); |
| 700 |
#endif
|
| 701 |
if (likely(!isnan(FT0)))
|
| 702 |
FT0 = float64_chs(FT0); |
| 703 |
} |
| 704 |
|
| 705 |
void do_fnmsub (void) |
| 706 |
{
|
| 707 |
#if USE_PRECISE_EMULATION
|
| 708 |
#ifdef FLOAT128
|
| 709 |
float128 ft0_128, ft1_128; |
| 710 |
|
| 711 |
ft0_128 = float64_to_float128(FT0, &env->fp_status); |
| 712 |
ft1_128 = float64_to_float128(FT1, &env->fp_status); |
| 713 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
| 714 |
ft1_128 = float64_to_float128(FT2, &env->fp_status); |
| 715 |
ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status); |
| 716 |
FT0 = float128_to_float64(ft0_128, &env->fp_status); |
| 717 |
#else
|
| 718 |
/* This is OK on x86 hosts */
|
| 719 |
FT0 = (FT0 * FT1) - FT2; |
| 720 |
#endif
|
| 721 |
#else
|
| 722 |
FT0 = float64_mul(FT0, FT1, &env->fp_status); |
| 723 |
FT0 = float64_sub(FT0, FT2, &env->fp_status); |
| 724 |
#endif
|
| 725 |
if (likely(!isnan(FT0)))
|
| 726 |
FT0 = float64_chs(FT0); |
| 727 |
} |
| 728 |
|
| 729 |
void do_fsqrt (void) |
| 730 |
{
|
| 731 |
FT0 = float64_sqrt(FT0, &env->fp_status); |
| 732 |
} |
| 733 |
|
| 734 |
void do_fres (void) |
| 735 |
{
|
| 736 |
union {
|
| 737 |
double d;
|
| 738 |
uint64_t i; |
| 739 |
} p; |
| 740 |
|
| 741 |
if (likely(isnormal(FT0))) {
|
| 742 |
#if USE_PRECISE_EMULATION
|
| 743 |
FT0 = float64_div(1.0, FT0, &env->fp_status); |
| 744 |
FT0 = float64_to_float32(FT0, &env->fp_status); |
| 745 |
#else
|
| 746 |
FT0 = float32_div(1.0, FT0, &env->fp_status); |
| 747 |
#endif
|
| 748 |
} else {
|
| 749 |
p.d = FT0; |
| 750 |
if (p.i == 0x8000000000000000ULL) { |
| 751 |
p.i = 0xFFF0000000000000ULL;
|
| 752 |
} else if (p.i == 0x0000000000000000ULL) { |
| 753 |
p.i = 0x7FF0000000000000ULL;
|
| 754 |
} else if (isnan(FT0)) { |
| 755 |
p.i = 0x7FF8000000000000ULL;
|
| 756 |
} else if (FT0 < 0.0) { |
| 757 |
p.i = 0x8000000000000000ULL;
|
| 758 |
} else {
|
| 759 |
p.i = 0x0000000000000000ULL;
|
| 760 |
} |
| 761 |
FT0 = p.d; |
| 762 |
} |
| 763 |
} |
| 764 |
|
| 765 |
void do_frsqrte (void) |
| 766 |
{
|
| 767 |
union {
|
| 768 |
double d;
|
| 769 |
uint64_t i; |
| 770 |
} p; |
| 771 |
|
| 772 |
if (likely(isnormal(FT0) && FT0 > 0.0)) { |
| 773 |
FT0 = float64_sqrt(FT0, &env->fp_status); |
| 774 |
FT0 = float32_div(1.0, FT0, &env->fp_status); |
| 775 |
} else {
|
| 776 |
p.d = FT0; |
| 777 |
if (p.i == 0x8000000000000000ULL) { |
| 778 |
p.i = 0xFFF0000000000000ULL;
|
| 779 |
} else if (p.i == 0x0000000000000000ULL) { |
| 780 |
p.i = 0x7FF0000000000000ULL;
|
| 781 |
} else if (isnan(FT0)) { |
| 782 |
if (!(p.i & 0x0008000000000000ULL)) |
| 783 |
p.i |= 0x000FFFFFFFFFFFFFULL;
|
| 784 |
} else if (FT0 < 0) { |
| 785 |
p.i = 0x7FF8000000000000ULL;
|
| 786 |
} else {
|
| 787 |
p.i = 0x0000000000000000ULL;
|
| 788 |
} |
| 789 |
FT0 = p.d; |
| 790 |
} |
| 791 |
} |
| 792 |
|
| 793 |
void do_fsel (void) |
| 794 |
{
|
| 795 |
if (FT0 >= 0) |
| 796 |
FT0 = FT1; |
| 797 |
else
|
| 798 |
FT0 = FT2; |
| 799 |
} |
| 800 |
|
| 801 |
void do_fcmpu (void) |
| 802 |
{
|
| 803 |
if (likely(!isnan(FT0) && !isnan(FT1))) {
|
| 804 |
if (float64_lt(FT0, FT1, &env->fp_status)) {
|
| 805 |
T0 = 0x08UL;
|
| 806 |
} else if (!float64_le(FT0, FT1, &env->fp_status)) { |
| 807 |
T0 = 0x04UL;
|
| 808 |
} else {
|
| 809 |
T0 = 0x02UL;
|
| 810 |
} |
| 811 |
} else {
|
| 812 |
T0 = 0x01UL;
|
| 813 |
env->fpscr[4] |= 0x1; |
| 814 |
env->fpscr[6] |= 0x1; |
| 815 |
} |
| 816 |
env->fpscr[3] = T0;
|
| 817 |
} |
| 818 |
|
| 819 |
void do_fcmpo (void) |
| 820 |
{
|
| 821 |
env->fpscr[4] &= ~0x1; |
| 822 |
if (likely(!isnan(FT0) && !isnan(FT1))) {
|
| 823 |
if (float64_lt(FT0, FT1, &env->fp_status)) {
|
| 824 |
T0 = 0x08UL;
|
| 825 |
} else if (!float64_le(FT0, FT1, &env->fp_status)) { |
| 826 |
T0 = 0x04UL;
|
| 827 |
} else {
|
| 828 |
T0 = 0x02UL;
|
| 829 |
} |
| 830 |
} else {
|
| 831 |
T0 = 0x01UL;
|
| 832 |
env->fpscr[4] |= 0x1; |
| 833 |
if (!float64_is_signaling_nan(FT0) || !float64_is_signaling_nan(FT1)) {
|
| 834 |
/* Quiet NaN case */
|
| 835 |
env->fpscr[6] |= 0x1; |
| 836 |
if (!(env->fpscr[1] & 0x8)) |
| 837 |
env->fpscr[4] |= 0x8; |
| 838 |
} else {
|
| 839 |
env->fpscr[4] |= 0x8; |
| 840 |
} |
| 841 |
} |
| 842 |
env->fpscr[3] = T0;
|
| 843 |
} |
| 844 |
|
| 845 |
#if !defined (CONFIG_USER_ONLY)
|
| 846 |
void do_rfi (void) |
| 847 |
{
|
| 848 |
env->nip = (target_ulong)(env->spr[SPR_SRR0] & ~0x00000003);
|
| 849 |
T0 = (target_ulong)(env->spr[SPR_SRR1] & ~0xFFFF0000UL);
|
| 850 |
do_store_msr(env, T0); |
| 851 |
#if defined (DEBUG_OP)
|
| 852 |
dump_rfi(); |
| 853 |
#endif
|
| 854 |
env->interrupt_request |= CPU_INTERRUPT_EXITTB; |
| 855 |
} |
| 856 |
|
| 857 |
#if defined(TARGET_PPC64)
|
| 858 |
void do_rfi_32 (void) |
| 859 |
{
|
| 860 |
env->nip = (uint32_t)(env->spr[SPR_SRR0] & ~0x00000003);
|
| 861 |
T0 = (uint32_t)(env->spr[SPR_SRR1] & ~0xFFFF0000UL);
|
| 862 |
do_store_msr(env, T0); |
| 863 |
#if defined (DEBUG_OP)
|
| 864 |
dump_rfi(); |
| 865 |
#endif
|
| 866 |
env->interrupt_request |= CPU_INTERRUPT_EXITTB; |
| 867 |
} |
| 868 |
#endif
|
| 869 |
#endif
|
| 870 |
|
| 871 |
void do_tw (int flags) |
| 872 |
{
|
| 873 |
if (!likely(!(((int32_t)T0 < (int32_t)T1 && (flags & 0x10)) || |
| 874 |
((int32_t)T0 > (int32_t)T1 && (flags & 0x08)) ||
|
| 875 |
((int32_t)T0 == (int32_t)T1 && (flags & 0x04)) ||
|
| 876 |
((uint32_t)T0 < (uint32_t)T1 && (flags & 0x02)) ||
|
| 877 |
((uint32_t)T0 > (uint32_t)T1 && (flags & 0x01)))))
|
| 878 |
do_raise_exception_err(EXCP_PROGRAM, EXCP_TRAP); |
| 879 |
} |
| 880 |
|
| 881 |
#if defined(TARGET_PPC64)
|
| 882 |
void do_td (int flags) |
| 883 |
{
|
| 884 |
if (!likely(!(((int64_t)T0 < (int64_t)T1 && (flags & 0x10)) || |
| 885 |
((int64_t)T0 > (int64_t)T1 && (flags & 0x08)) ||
|
| 886 |
((int64_t)T0 == (int64_t)T1 && (flags & 0x04)) ||
|
| 887 |
((uint64_t)T0 < (uint64_t)T1 && (flags & 0x02)) ||
|
| 888 |
((uint64_t)T0 > (uint64_t)T1 && (flags & 0x01)))))
|
| 889 |
do_raise_exception_err(EXCP_PROGRAM, EXCP_TRAP); |
| 890 |
} |
| 891 |
#endif
|
| 892 |
|
| 893 |
/*****************************************************************************/
|
| 894 |
/* PowerPC 601 specific instructions (POWER bridge) */
|
| 895 |
void do_POWER_abso (void) |
| 896 |
{
|
| 897 |
if ((uint32_t)T0 == INT32_MIN) {
|
| 898 |
T0 = INT32_MAX; |
| 899 |
xer_ov = 1;
|
| 900 |
xer_so = 1;
|
| 901 |
} else {
|
| 902 |
T0 = -T0; |
| 903 |
xer_ov = 0;
|
| 904 |
} |
| 905 |
} |
| 906 |
|
| 907 |
void do_POWER_clcs (void) |
| 908 |
{
|
| 909 |
switch (T0) {
|
| 910 |
case 0x0CUL: |
| 911 |
/* Instruction cache line size */
|
| 912 |
T0 = ICACHE_LINE_SIZE; |
| 913 |
break;
|
| 914 |
case 0x0DUL: |
| 915 |
/* Data cache line size */
|
| 916 |
T0 = DCACHE_LINE_SIZE; |
| 917 |
break;
|
| 918 |
case 0x0EUL: |
| 919 |
/* Minimum cache line size */
|
| 920 |
T0 = ICACHE_LINE_SIZE < DCACHE_LINE_SIZE ? |
| 921 |
ICACHE_LINE_SIZE : DCACHE_LINE_SIZE; |
| 922 |
break;
|
| 923 |
case 0x0FUL: |
| 924 |
/* Maximum cache line size */
|
| 925 |
T0 = ICACHE_LINE_SIZE > DCACHE_LINE_SIZE ? |
| 926 |
ICACHE_LINE_SIZE : DCACHE_LINE_SIZE; |
| 927 |
break;
|
| 928 |
default:
|
| 929 |
/* Undefined */
|
| 930 |
break;
|
| 931 |
} |
| 932 |
} |
| 933 |
|
| 934 |
void do_POWER_div (void) |
| 935 |
{
|
| 936 |
uint64_t tmp; |
| 937 |
|
| 938 |
if (((int32_t)T0 == INT32_MIN && (int32_t)T1 == -1) || (int32_t)T1 == 0) { |
| 939 |
T0 = (long)((-1) * (T0 >> 31)); |
| 940 |
env->spr[SPR_MQ] = 0;
|
| 941 |
} else {
|
| 942 |
tmp = ((uint64_t)T0 << 32) | env->spr[SPR_MQ];
|
| 943 |
env->spr[SPR_MQ] = tmp % T1; |
| 944 |
T0 = tmp / (int32_t)T1; |
| 945 |
} |
| 946 |
} |
| 947 |
|
| 948 |
void do_POWER_divo (void) |
| 949 |
{
|
| 950 |
int64_t tmp; |
| 951 |
|
| 952 |
if (((int32_t)T0 == INT32_MIN && (int32_t)T1 == -1) || (int32_t)T1 == 0) { |
| 953 |
T0 = (long)((-1) * (T0 >> 31)); |
| 954 |
env->spr[SPR_MQ] = 0;
|
| 955 |
xer_ov = 1;
|
| 956 |
xer_so = 1;
|
| 957 |
} else {
|
| 958 |
tmp = ((uint64_t)T0 << 32) | env->spr[SPR_MQ];
|
| 959 |
env->spr[SPR_MQ] = tmp % T1; |
| 960 |
tmp /= (int32_t)T1; |
| 961 |
if (tmp > (int64_t)INT32_MAX || tmp < (int64_t)INT32_MIN) {
|
| 962 |
xer_ov = 1;
|
| 963 |
xer_so = 1;
|
| 964 |
} else {
|
| 965 |
xer_ov = 0;
|
| 966 |
} |
| 967 |
T0 = tmp; |
| 968 |
} |
| 969 |
} |
| 970 |
|
| 971 |
void do_POWER_divs (void) |
| 972 |
{
|
| 973 |
if (((int32_t)T0 == INT32_MIN && (int32_t)T1 == -1) || (int32_t)T1 == 0) { |
| 974 |
T0 = (long)((-1) * (T0 >> 31)); |
| 975 |
env->spr[SPR_MQ] = 0;
|
| 976 |
} else {
|
| 977 |
env->spr[SPR_MQ] = T0 % T1; |
| 978 |
T0 = (int32_t)T0 / (int32_t)T1; |
| 979 |
} |
| 980 |
} |
| 981 |
|
| 982 |
void do_POWER_divso (void) |
| 983 |
{
|
| 984 |
if (((int32_t)T0 == INT32_MIN && (int32_t)T1 == -1) || (int32_t)T1 == 0) { |
| 985 |
T0 = (long)((-1) * (T0 >> 31)); |
| 986 |
env->spr[SPR_MQ] = 0;
|
| 987 |
xer_ov = 1;
|
| 988 |
xer_so = 1;
|
| 989 |
} else {
|
| 990 |
T0 = (int32_t)T0 / (int32_t)T1; |
| 991 |
env->spr[SPR_MQ] = (int32_t)T0 % (int32_t)T1; |
| 992 |
xer_ov = 0;
|
| 993 |
} |
| 994 |
} |
| 995 |
|
| 996 |
void do_POWER_dozo (void) |
| 997 |
{
|
| 998 |
if ((int32_t)T1 > (int32_t)T0) {
|
| 999 |
T2 = T0; |
| 1000 |
T0 = T1 - T0; |
| 1001 |
if (((uint32_t)(~T2) ^ (uint32_t)T1 ^ UINT32_MAX) &
|
| 1002 |
((uint32_t)(~T2) ^ (uint32_t)T0) & (1UL << 31)) { |
| 1003 |
xer_so = 1;
|
| 1004 |
xer_ov = 1;
|
| 1005 |
} else {
|
| 1006 |
xer_ov = 0;
|
| 1007 |
} |
| 1008 |
} else {
|
| 1009 |
T0 = 0;
|
| 1010 |
xer_ov = 0;
|
| 1011 |
} |
| 1012 |
} |
| 1013 |
|
| 1014 |
void do_POWER_maskg (void) |
| 1015 |
{
|
| 1016 |
uint32_t ret; |
| 1017 |
|
| 1018 |
if ((uint32_t)T0 == (uint32_t)(T1 + 1)) { |
| 1019 |
ret = -1;
|
| 1020 |
} else {
|
| 1021 |
ret = (((uint32_t)(-1)) >> ((uint32_t)T0)) ^
|
| 1022 |
(((uint32_t)(-1) >> ((uint32_t)T1)) >> 1); |
| 1023 |
if ((uint32_t)T0 > (uint32_t)T1)
|
| 1024 |
ret = ~ret; |
| 1025 |
} |
| 1026 |
T0 = ret; |
| 1027 |
} |
| 1028 |
|
| 1029 |
void do_POWER_mulo (void) |
| 1030 |
{
|
| 1031 |
uint64_t tmp; |
| 1032 |
|
| 1033 |
tmp = (uint64_t)T0 * (uint64_t)T1; |
| 1034 |
env->spr[SPR_MQ] = tmp >> 32;
|
| 1035 |
T0 = tmp; |
| 1036 |
if (tmp >> 32 != ((uint64_t)T0 >> 16) * ((uint64_t)T1 >> 16)) { |
| 1037 |
xer_ov = 1;
|
| 1038 |
xer_so = 1;
|
| 1039 |
} else {
|
| 1040 |
xer_ov = 0;
|
| 1041 |
} |
| 1042 |
} |
| 1043 |
|
| 1044 |
#if !defined (CONFIG_USER_ONLY)
|
| 1045 |
void do_POWER_rac (void) |
| 1046 |
{
|
| 1047 |
#if 0
|
| 1048 |
mmu_ctx_t ctx;
|
| 1049 |
|
| 1050 |
/* We don't have to generate many instances of this instruction,
|
| 1051 |
* as rac is supervisor only.
|
| 1052 |
*/
|
| 1053 |
if (get_physical_address(env, &ctx, T0, 0, ACCESS_INT, 1) == 0)
|
| 1054 |
T0 = ctx.raddr;
|
| 1055 |
#endif
|
| 1056 |
} |
| 1057 |
|
| 1058 |
void do_POWER_rfsvc (void) |
| 1059 |
{
|
| 1060 |
env->nip = env->lr & ~0x00000003UL;
|
| 1061 |
T0 = env->ctr & 0x0000FFFFUL;
|
| 1062 |
do_store_msr(env, T0); |
| 1063 |
#if defined (DEBUG_OP)
|
| 1064 |
dump_rfi(); |
| 1065 |
#endif
|
| 1066 |
env->interrupt_request |= CPU_INTERRUPT_EXITTB; |
| 1067 |
} |
| 1068 |
|
| 1069 |
/* PowerPC 601 BAT management helper */
|
| 1070 |
void do_store_601_batu (int nr) |
| 1071 |
{
|
| 1072 |
do_store_ibatu(env, nr, (uint32_t)T0); |
| 1073 |
env->DBAT[0][nr] = env->IBAT[0][nr]; |
| 1074 |
env->DBAT[1][nr] = env->IBAT[1][nr]; |
| 1075 |
} |
| 1076 |
#endif
|
| 1077 |
|
| 1078 |
/*****************************************************************************/
|
| 1079 |
/* 602 specific instructions */
|
| 1080 |
/* mfrom is the most crazy instruction ever seen, imho ! */
|
| 1081 |
/* Real implementation uses a ROM table. Do the same */
|
| 1082 |
#define USE_MFROM_ROM_TABLE
|
| 1083 |
void do_op_602_mfrom (void) |
| 1084 |
{
|
| 1085 |
if (likely(T0 < 602)) { |
| 1086 |
#if defined(USE_MFROM_ROM_TABLE)
|
| 1087 |
#include "mfrom_table.c" |
| 1088 |
T0 = mfrom_ROM_table[T0]; |
| 1089 |
#else
|
| 1090 |
double d;
|
| 1091 |
/* Extremly decomposed:
|
| 1092 |
* -T0 / 256
|
| 1093 |
* T0 = 256 * log10(10 + 1.0) + 0.5
|
| 1094 |
*/
|
| 1095 |
d = T0; |
| 1096 |
d = float64_div(d, 256, &env->fp_status);
|
| 1097 |
d = float64_chs(d); |
| 1098 |
d = exp10(d); // XXX: use float emulation function
|
| 1099 |
d = float64_add(d, 1.0, &env->fp_status); |
| 1100 |
d = log10(d); // XXX: use float emulation function
|
| 1101 |
d = float64_mul(d, 256, &env->fp_status);
|
| 1102 |
d = float64_add(d, 0.5, &env->fp_status); |
| 1103 |
T0 = float64_round_to_int(d, &env->fp_status); |
| 1104 |
#endif
|
| 1105 |
} else {
|
| 1106 |
T0 = 0;
|
| 1107 |
} |
| 1108 |
} |
| 1109 |
|
| 1110 |
/*****************************************************************************/
|
| 1111 |
/* Embedded PowerPC specific helpers */
|
| 1112 |
void do_405_check_ov (void) |
| 1113 |
{
|
| 1114 |
if (likely((((uint32_t)T1 ^ (uint32_t)T2) >> 31) || |
| 1115 |
!(((uint32_t)T0 ^ (uint32_t)T2) >> 31))) {
|
| 1116 |
xer_ov = 0;
|
| 1117 |
} else {
|
| 1118 |
xer_ov = 1;
|
| 1119 |
xer_so = 1;
|
| 1120 |
} |
| 1121 |
} |
| 1122 |
|
| 1123 |
void do_405_check_sat (void) |
| 1124 |
{
|
| 1125 |
if (!likely((((uint32_t)T1 ^ (uint32_t)T2) >> 31) || |
| 1126 |
!(((uint32_t)T0 ^ (uint32_t)T2) >> 31))) {
|
| 1127 |
/* Saturate result */
|
| 1128 |
if (T2 >> 31) { |
| 1129 |
T0 = INT32_MIN; |
| 1130 |
} else {
|
| 1131 |
T0 = INT32_MAX; |
| 1132 |
} |
| 1133 |
} |
| 1134 |
} |
| 1135 |
|
| 1136 |
#if !defined(CONFIG_USER_ONLY)
|
| 1137 |
void do_4xx_rfci (void) |
| 1138 |
{
|
| 1139 |
env->nip = env->spr[SPR_40x_SRR2]; |
| 1140 |
T0 = env->spr[SPR_40x_SRR3] & ~0xFFFF0000;
|
| 1141 |
do_store_msr(env, T0); |
| 1142 |
#if defined (DEBUG_OP)
|
| 1143 |
dump_rfi(); |
| 1144 |
#endif
|
| 1145 |
env->interrupt_request = CPU_INTERRUPT_EXITTB; |
| 1146 |
} |
| 1147 |
|
| 1148 |
void do_4xx_load_dcr (int dcrn) |
| 1149 |
{
|
| 1150 |
target_ulong val; |
| 1151 |
|
| 1152 |
if (unlikely(env->dcr_read == NULL)) |
| 1153 |
do_raise_exception_err(EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_INVAL); |
| 1154 |
else if (unlikely((*env->dcr_read)(env->dcr_env, dcrn, &val) != 0)) |
| 1155 |
do_raise_exception_err(EXCP_PROGRAM, EXCP_INVAL | EXCP_PRIV_REG); |
| 1156 |
else
|
| 1157 |
T0 = val; |
| 1158 |
} |
| 1159 |
|
| 1160 |
void do_4xx_store_dcr (int dcrn) |
| 1161 |
{
|
| 1162 |
if (unlikely(env->dcr_write == NULL)) |
| 1163 |
do_raise_exception_err(EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_INVAL); |
| 1164 |
else if (unlikely((*env->dcr_write)(env->dcr_env, dcrn, T0) != 0)) |
| 1165 |
do_raise_exception_err(EXCP_PROGRAM, EXCP_INVAL | EXCP_PRIV_REG); |
| 1166 |
} |
| 1167 |
|
| 1168 |
void do_load_403_pb (int num) |
| 1169 |
{
|
| 1170 |
T0 = env->pb[num]; |
| 1171 |
} |
| 1172 |
|
| 1173 |
void do_store_403_pb (int num) |
| 1174 |
{
|
| 1175 |
if (likely(env->pb[num] != T0)) {
|
| 1176 |
env->pb[num] = T0; |
| 1177 |
/* Should be optimized */
|
| 1178 |
tlb_flush(env, 1);
|
| 1179 |
} |
| 1180 |
} |
| 1181 |
#endif
|
| 1182 |
|
| 1183 |
/* 440 specific */
|
| 1184 |
void do_440_dlmzb (void) |
| 1185 |
{
|
| 1186 |
target_ulong mask; |
| 1187 |
int i;
|
| 1188 |
|
| 1189 |
i = 1;
|
| 1190 |
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
| 1191 |
if ((T0 & mask) == 0) |
| 1192 |
goto done;
|
| 1193 |
i++; |
| 1194 |
} |
| 1195 |
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
| 1196 |
if ((T1 & mask) == 0) |
| 1197 |
break;
|
| 1198 |
i++; |
| 1199 |
} |
| 1200 |
done:
|
| 1201 |
T0 = i; |
| 1202 |
} |
| 1203 |
|
| 1204 |
#if defined(TARGET_PPCSPE)
|
| 1205 |
/* SPE extension helpers */
|
| 1206 |
/* Use a table to make this quicker */
|
| 1207 |
static uint8_t hbrev[16] = { |
| 1208 |
0x0, 0x8, 0x4, 0xC, 0x2, 0xA, 0x6, 0xE, |
| 1209 |
0x1, 0x9, 0x5, 0xD, 0x3, 0xB, 0x7, 0xF, |
| 1210 |
}; |
| 1211 |
|
| 1212 |
static inline uint8_t byte_reverse (uint8_t val) |
| 1213 |
{
|
| 1214 |
return hbrev[val >> 4] | (hbrev[val & 0xF] << 4); |
| 1215 |
} |
| 1216 |
|
| 1217 |
static inline uint32_t word_reverse (uint32_t val) |
| 1218 |
{
|
| 1219 |
return byte_reverse(val >> 24) | (byte_reverse(val >> 16) << 8) | |
| 1220 |
(byte_reverse(val >> 8) << 16) | (byte_reverse(val) << 24); |
| 1221 |
} |
| 1222 |
|
| 1223 |
#define MASKBITS 16 // Random value - to be fixed |
| 1224 |
void do_brinc (void) |
| 1225 |
{
|
| 1226 |
uint32_t a, b, d, mask; |
| 1227 |
|
| 1228 |
mask = (uint32_t)(-1UL) >> MASKBITS;
|
| 1229 |
b = T1_64 & mask; |
| 1230 |
a = T0_64 & mask; |
| 1231 |
d = word_reverse(1 + word_reverse(a | ~mask));
|
| 1232 |
T0_64 = (T0_64 & ~mask) | (d & mask); |
| 1233 |
} |
| 1234 |
|
| 1235 |
#define DO_SPE_OP2(name) \
|
| 1236 |
void do_ev##name (void) \ |
| 1237 |
{ \
|
| 1238 |
T0_64 = ((uint64_t)_do_e##name(T0_64 >> 32, T1_64 >> 32) << 32) | \ |
| 1239 |
(uint64_t)_do_e##name(T0_64, T1_64); \ |
| 1240 |
} |
| 1241 |
|
| 1242 |
#define DO_SPE_OP1(name) \
|
| 1243 |
void do_ev##name (void) \ |
| 1244 |
{ \
|
| 1245 |
T0_64 = ((uint64_t)_do_e##name(T0_64 >> 32) << 32) | \ |
| 1246 |
(uint64_t)_do_e##name(T0_64); \ |
| 1247 |
} |
| 1248 |
|
| 1249 |
/* Fixed-point vector arithmetic */
|
| 1250 |
static inline uint32_t _do_eabs (uint32_t val) |
| 1251 |
{
|
| 1252 |
if (val != 0x80000000) |
| 1253 |
val &= ~0x80000000;
|
| 1254 |
|
| 1255 |
return val;
|
| 1256 |
} |
| 1257 |
|
| 1258 |
static inline uint32_t _do_eaddw (uint32_t op1, uint32_t op2) |
| 1259 |
{
|
| 1260 |
return op1 + op2;
|
| 1261 |
} |
| 1262 |
|
| 1263 |
static inline int _do_ecntlsw (uint32_t val) |
| 1264 |
{
|
| 1265 |
if (val & 0x80000000) |
| 1266 |
return _do_cntlzw(~val);
|
| 1267 |
else
|
| 1268 |
return _do_cntlzw(val);
|
| 1269 |
} |
| 1270 |
|
| 1271 |
static inline int _do_ecntlzw (uint32_t val) |
| 1272 |
{
|
| 1273 |
return _do_cntlzw(val);
|
| 1274 |
} |
| 1275 |
|
| 1276 |
static inline uint32_t _do_eneg (uint32_t val) |
| 1277 |
{
|
| 1278 |
if (val != 0x80000000) |
| 1279 |
val ^= 0x80000000;
|
| 1280 |
|
| 1281 |
return val;
|
| 1282 |
} |
| 1283 |
|
| 1284 |
static inline uint32_t _do_erlw (uint32_t op1, uint32_t op2) |
| 1285 |
{
|
| 1286 |
return rotl32(op1, op2);
|
| 1287 |
} |
| 1288 |
|
| 1289 |
static inline uint32_t _do_erndw (uint32_t val) |
| 1290 |
{
|
| 1291 |
return (val + 0x000080000000) & 0xFFFF0000; |
| 1292 |
} |
| 1293 |
|
| 1294 |
static inline uint32_t _do_eslw (uint32_t op1, uint32_t op2) |
| 1295 |
{
|
| 1296 |
/* No error here: 6 bits are used */
|
| 1297 |
return op1 << (op2 & 0x3F); |
| 1298 |
} |
| 1299 |
|
| 1300 |
static inline int32_t _do_esrws (int32_t op1, uint32_t op2) |
| 1301 |
{
|
| 1302 |
/* No error here: 6 bits are used */
|
| 1303 |
return op1 >> (op2 & 0x3F); |
| 1304 |
} |
| 1305 |
|
| 1306 |
static inline uint32_t _do_esrwu (uint32_t op1, uint32_t op2) |
| 1307 |
{
|
| 1308 |
/* No error here: 6 bits are used */
|
| 1309 |
return op1 >> (op2 & 0x3F); |
| 1310 |
} |
| 1311 |
|
| 1312 |
static inline uint32_t _do_esubfw (uint32_t op1, uint32_t op2) |
| 1313 |
{
|
| 1314 |
return op2 - op1;
|
| 1315 |
} |
| 1316 |
|
| 1317 |
/* evabs */
|
| 1318 |
DO_SPE_OP1(abs); |
| 1319 |
/* evaddw */
|
| 1320 |
DO_SPE_OP2(addw); |
| 1321 |
/* evcntlsw */
|
| 1322 |
DO_SPE_OP1(cntlsw); |
| 1323 |
/* evcntlzw */
|
| 1324 |
DO_SPE_OP1(cntlzw); |
| 1325 |
/* evneg */
|
| 1326 |
DO_SPE_OP1(neg); |
| 1327 |
/* evrlw */
|
| 1328 |
DO_SPE_OP2(rlw); |
| 1329 |
/* evrnd */
|
| 1330 |
DO_SPE_OP1(rndw); |
| 1331 |
/* evslw */
|
| 1332 |
DO_SPE_OP2(slw); |
| 1333 |
/* evsrws */
|
| 1334 |
DO_SPE_OP2(srws); |
| 1335 |
/* evsrwu */
|
| 1336 |
DO_SPE_OP2(srwu); |
| 1337 |
/* evsubfw */
|
| 1338 |
DO_SPE_OP2(subfw); |
| 1339 |
|
| 1340 |
/* evsel is a little bit more complicated... */
|
| 1341 |
static inline uint32_t _do_esel (uint32_t op1, uint32_t op2, int n) |
| 1342 |
{
|
| 1343 |
if (n)
|
| 1344 |
return op1;
|
| 1345 |
else
|
| 1346 |
return op2;
|
| 1347 |
} |
| 1348 |
|
| 1349 |
void do_evsel (void) |
| 1350 |
{
|
| 1351 |
T0_64 = ((uint64_t)_do_esel(T0_64 >> 32, T1_64 >> 32, T0 >> 3) << 32) | |
| 1352 |
(uint64_t)_do_esel(T0_64, T1_64, (T0 >> 2) & 1); |
| 1353 |
} |
| 1354 |
|
| 1355 |
/* Fixed-point vector comparisons */
|
| 1356 |
#define DO_SPE_CMP(name) \
|
| 1357 |
void do_ev##name (void) \ |
| 1358 |
{ \
|
| 1359 |
T0 = _do_evcmp_merge((uint64_t)_do_e##name(T0_64 >> 32, \ |
| 1360 |
T1_64 >> 32) << 32, \ |
| 1361 |
_do_e##name(T0_64, T1_64)); \ |
| 1362 |
} |
| 1363 |
|
| 1364 |
static inline uint32_t _do_evcmp_merge (int t0, int t1) |
| 1365 |
{
|
| 1366 |
return (t0 << 3) | (t1 << 2) | ((t0 | t1) << 1) | (t0 & t1); |
| 1367 |
} |
| 1368 |
static inline int _do_ecmpeq (uint32_t op1, uint32_t op2) |
| 1369 |
{
|
| 1370 |
return op1 == op2 ? 1 : 0; |
| 1371 |
} |
| 1372 |
|
| 1373 |
static inline int _do_ecmpgts (int32_t op1, int32_t op2) |
| 1374 |
{
|
| 1375 |
return op1 > op2 ? 1 : 0; |
| 1376 |
} |
| 1377 |
|
| 1378 |
static inline int _do_ecmpgtu (uint32_t op1, uint32_t op2) |
| 1379 |
{
|
| 1380 |
return op1 > op2 ? 1 : 0; |
| 1381 |
} |
| 1382 |
|
| 1383 |
static inline int _do_ecmplts (int32_t op1, int32_t op2) |
| 1384 |
{
|
| 1385 |
return op1 < op2 ? 1 : 0; |
| 1386 |
} |
| 1387 |
|
| 1388 |
static inline int _do_ecmpltu (uint32_t op1, uint32_t op2) |
| 1389 |
{
|
| 1390 |
return op1 < op2 ? 1 : 0; |
| 1391 |
} |
| 1392 |
|
| 1393 |
/* evcmpeq */
|
| 1394 |
DO_SPE_CMP(cmpeq); |
| 1395 |
/* evcmpgts */
|
| 1396 |
DO_SPE_CMP(cmpgts); |
| 1397 |
/* evcmpgtu */
|
| 1398 |
DO_SPE_CMP(cmpgtu); |
| 1399 |
/* evcmplts */
|
| 1400 |
DO_SPE_CMP(cmplts); |
| 1401 |
/* evcmpltu */
|
| 1402 |
DO_SPE_CMP(cmpltu); |
| 1403 |
|
| 1404 |
/* Single precision floating-point conversions from/to integer */
|
| 1405 |
static inline uint32_t _do_efscfsi (int32_t val) |
| 1406 |
{
|
| 1407 |
union {
|
| 1408 |
uint32_t u; |
| 1409 |
float32 f; |
| 1410 |
} u; |
| 1411 |
|
| 1412 |
u.f = int32_to_float32(val, &env->spe_status); |
| 1413 |
|
| 1414 |
return u.u;
|
| 1415 |
} |
| 1416 |
|
| 1417 |
static inline uint32_t _do_efscfui (uint32_t val) |
| 1418 |
{
|
| 1419 |
union {
|
| 1420 |
uint32_t u; |
| 1421 |
float32 f; |
| 1422 |
} u; |
| 1423 |
|
| 1424 |
u.f = uint32_to_float32(val, &env->spe_status); |
| 1425 |
|
| 1426 |
return u.u;
|
| 1427 |
} |
| 1428 |
|
| 1429 |
static inline int32_t _do_efsctsi (uint32_t val) |
| 1430 |
{
|
| 1431 |
union {
|
| 1432 |
int32_t u; |
| 1433 |
float32 f; |
| 1434 |
} u; |
| 1435 |
|
| 1436 |
u.u = val; |
| 1437 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1438 |
if (unlikely(isnan(u.f)))
|
| 1439 |
return 0; |
| 1440 |
|
| 1441 |
return float32_to_int32(u.f, &env->spe_status);
|
| 1442 |
} |
| 1443 |
|
| 1444 |
static inline uint32_t _do_efsctui (uint32_t val) |
| 1445 |
{
|
| 1446 |
union {
|
| 1447 |
int32_t u; |
| 1448 |
float32 f; |
| 1449 |
} u; |
| 1450 |
|
| 1451 |
u.u = val; |
| 1452 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1453 |
if (unlikely(isnan(u.f)))
|
| 1454 |
return 0; |
| 1455 |
|
| 1456 |
return float32_to_uint32(u.f, &env->spe_status);
|
| 1457 |
} |
| 1458 |
|
| 1459 |
static inline int32_t _do_efsctsiz (uint32_t val) |
| 1460 |
{
|
| 1461 |
union {
|
| 1462 |
int32_t u; |
| 1463 |
float32 f; |
| 1464 |
} u; |
| 1465 |
|
| 1466 |
u.u = val; |
| 1467 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1468 |
if (unlikely(isnan(u.f)))
|
| 1469 |
return 0; |
| 1470 |
|
| 1471 |
return float32_to_int32_round_to_zero(u.f, &env->spe_status);
|
| 1472 |
} |
| 1473 |
|
| 1474 |
static inline uint32_t _do_efsctuiz (uint32_t val) |
| 1475 |
{
|
| 1476 |
union {
|
| 1477 |
int32_t u; |
| 1478 |
float32 f; |
| 1479 |
} u; |
| 1480 |
|
| 1481 |
u.u = val; |
| 1482 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1483 |
if (unlikely(isnan(u.f)))
|
| 1484 |
return 0; |
| 1485 |
|
| 1486 |
return float32_to_uint32_round_to_zero(u.f, &env->spe_status);
|
| 1487 |
} |
| 1488 |
|
| 1489 |
void do_efscfsi (void) |
| 1490 |
{
|
| 1491 |
T0_64 = _do_efscfsi(T0_64); |
| 1492 |
} |
| 1493 |
|
| 1494 |
void do_efscfui (void) |
| 1495 |
{
|
| 1496 |
T0_64 = _do_efscfui(T0_64); |
| 1497 |
} |
| 1498 |
|
| 1499 |
void do_efsctsi (void) |
| 1500 |
{
|
| 1501 |
T0_64 = _do_efsctsi(T0_64); |
| 1502 |
} |
| 1503 |
|
| 1504 |
void do_efsctui (void) |
| 1505 |
{
|
| 1506 |
T0_64 = _do_efsctui(T0_64); |
| 1507 |
} |
| 1508 |
|
| 1509 |
void do_efsctsiz (void) |
| 1510 |
{
|
| 1511 |
T0_64 = _do_efsctsiz(T0_64); |
| 1512 |
} |
| 1513 |
|
| 1514 |
void do_efsctuiz (void) |
| 1515 |
{
|
| 1516 |
T0_64 = _do_efsctuiz(T0_64); |
| 1517 |
} |
| 1518 |
|
| 1519 |
/* Single precision floating-point conversion to/from fractional */
|
| 1520 |
static inline uint32_t _do_efscfsf (uint32_t val) |
| 1521 |
{
|
| 1522 |
union {
|
| 1523 |
uint32_t u; |
| 1524 |
float32 f; |
| 1525 |
} u; |
| 1526 |
float32 tmp; |
| 1527 |
|
| 1528 |
u.f = int32_to_float32(val, &env->spe_status); |
| 1529 |
tmp = int64_to_float32(1ULL << 32, &env->spe_status); |
| 1530 |
u.f = float32_div(u.f, tmp, &env->spe_status); |
| 1531 |
|
| 1532 |
return u.u;
|
| 1533 |
} |
| 1534 |
|
| 1535 |
static inline uint32_t _do_efscfuf (uint32_t val) |
| 1536 |
{
|
| 1537 |
union {
|
| 1538 |
uint32_t u; |
| 1539 |
float32 f; |
| 1540 |
} u; |
| 1541 |
float32 tmp; |
| 1542 |
|
| 1543 |
u.f = uint32_to_float32(val, &env->spe_status); |
| 1544 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
| 1545 |
u.f = float32_div(u.f, tmp, &env->spe_status); |
| 1546 |
|
| 1547 |
return u.u;
|
| 1548 |
} |
| 1549 |
|
| 1550 |
static inline int32_t _do_efsctsf (uint32_t val) |
| 1551 |
{
|
| 1552 |
union {
|
| 1553 |
int32_t u; |
| 1554 |
float32 f; |
| 1555 |
} u; |
| 1556 |
float32 tmp; |
| 1557 |
|
| 1558 |
u.u = val; |
| 1559 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1560 |
if (unlikely(isnan(u.f)))
|
| 1561 |
return 0; |
| 1562 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
| 1563 |
u.f = float32_mul(u.f, tmp, &env->spe_status); |
| 1564 |
|
| 1565 |
return float32_to_int32(u.f, &env->spe_status);
|
| 1566 |
} |
| 1567 |
|
| 1568 |
static inline uint32_t _do_efsctuf (uint32_t val) |
| 1569 |
{
|
| 1570 |
union {
|
| 1571 |
int32_t u; |
| 1572 |
float32 f; |
| 1573 |
} u; |
| 1574 |
float32 tmp; |
| 1575 |
|
| 1576 |
u.u = val; |
| 1577 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1578 |
if (unlikely(isnan(u.f)))
|
| 1579 |
return 0; |
| 1580 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
| 1581 |
u.f = float32_mul(u.f, tmp, &env->spe_status); |
| 1582 |
|
| 1583 |
return float32_to_uint32(u.f, &env->spe_status);
|
| 1584 |
} |
| 1585 |
|
| 1586 |
static inline int32_t _do_efsctsfz (uint32_t val) |
| 1587 |
{
|
| 1588 |
union {
|
| 1589 |
int32_t u; |
| 1590 |
float32 f; |
| 1591 |
} u; |
| 1592 |
float32 tmp; |
| 1593 |
|
| 1594 |
u.u = val; |
| 1595 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1596 |
if (unlikely(isnan(u.f)))
|
| 1597 |
return 0; |
| 1598 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
| 1599 |
u.f = float32_mul(u.f, tmp, &env->spe_status); |
| 1600 |
|
| 1601 |
return float32_to_int32_round_to_zero(u.f, &env->spe_status);
|
| 1602 |
} |
| 1603 |
|
| 1604 |
static inline uint32_t _do_efsctufz (uint32_t val) |
| 1605 |
{
|
| 1606 |
union {
|
| 1607 |
int32_t u; |
| 1608 |
float32 f; |
| 1609 |
} u; |
| 1610 |
float32 tmp; |
| 1611 |
|
| 1612 |
u.u = val; |
| 1613 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1614 |
if (unlikely(isnan(u.f)))
|
| 1615 |
return 0; |
| 1616 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
| 1617 |
u.f = float32_mul(u.f, tmp, &env->spe_status); |
| 1618 |
|
| 1619 |
return float32_to_uint32_round_to_zero(u.f, &env->spe_status);
|
| 1620 |
} |
| 1621 |
|
| 1622 |
void do_efscfsf (void) |
| 1623 |
{
|
| 1624 |
T0_64 = _do_efscfsf(T0_64); |
| 1625 |
} |
| 1626 |
|
| 1627 |
void do_efscfuf (void) |
| 1628 |
{
|
| 1629 |
T0_64 = _do_efscfuf(T0_64); |
| 1630 |
} |
| 1631 |
|
| 1632 |
void do_efsctsf (void) |
| 1633 |
{
|
| 1634 |
T0_64 = _do_efsctsf(T0_64); |
| 1635 |
} |
| 1636 |
|
| 1637 |
void do_efsctuf (void) |
| 1638 |
{
|
| 1639 |
T0_64 = _do_efsctuf(T0_64); |
| 1640 |
} |
| 1641 |
|
| 1642 |
void do_efsctsfz (void) |
| 1643 |
{
|
| 1644 |
T0_64 = _do_efsctsfz(T0_64); |
| 1645 |
} |
| 1646 |
|
| 1647 |
void do_efsctufz (void) |
| 1648 |
{
|
| 1649 |
T0_64 = _do_efsctufz(T0_64); |
| 1650 |
} |
| 1651 |
|
| 1652 |
/* Double precision floating point helpers */
|
| 1653 |
static inline int _do_efdcmplt (uint64_t op1, uint64_t op2) |
| 1654 |
{
|
| 1655 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
| 1656 |
return _do_efdtstlt(op1, op2);
|
| 1657 |
} |
| 1658 |
|
| 1659 |
static inline int _do_efdcmpgt (uint64_t op1, uint64_t op2) |
| 1660 |
{
|
| 1661 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
| 1662 |
return _do_efdtstgt(op1, op2);
|
| 1663 |
} |
| 1664 |
|
| 1665 |
static inline int _do_efdcmpeq (uint64_t op1, uint64_t op2) |
| 1666 |
{
|
| 1667 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
| 1668 |
return _do_efdtsteq(op1, op2);
|
| 1669 |
} |
| 1670 |
|
| 1671 |
void do_efdcmplt (void) |
| 1672 |
{
|
| 1673 |
T0 = _do_efdcmplt(T0_64, T1_64); |
| 1674 |
} |
| 1675 |
|
| 1676 |
void do_efdcmpgt (void) |
| 1677 |
{
|
| 1678 |
T0 = _do_efdcmpgt(T0_64, T1_64); |
| 1679 |
} |
| 1680 |
|
| 1681 |
void do_efdcmpeq (void) |
| 1682 |
{
|
| 1683 |
T0 = _do_efdcmpeq(T0_64, T1_64); |
| 1684 |
} |
| 1685 |
|
| 1686 |
/* Double precision floating-point conversion to/from integer */
|
| 1687 |
static inline uint64_t _do_efdcfsi (int64_t val) |
| 1688 |
{
|
| 1689 |
union {
|
| 1690 |
uint64_t u; |
| 1691 |
float64 f; |
| 1692 |
} u; |
| 1693 |
|
| 1694 |
u.f = int64_to_float64(val, &env->spe_status); |
| 1695 |
|
| 1696 |
return u.u;
|
| 1697 |
} |
| 1698 |
|
| 1699 |
static inline uint64_t _do_efdcfui (uint64_t val) |
| 1700 |
{
|
| 1701 |
union {
|
| 1702 |
uint64_t u; |
| 1703 |
float64 f; |
| 1704 |
} u; |
| 1705 |
|
| 1706 |
u.f = uint64_to_float64(val, &env->spe_status); |
| 1707 |
|
| 1708 |
return u.u;
|
| 1709 |
} |
| 1710 |
|
| 1711 |
static inline int64_t _do_efdctsi (uint64_t val) |
| 1712 |
{
|
| 1713 |
union {
|
| 1714 |
int64_t u; |
| 1715 |
float64 f; |
| 1716 |
} u; |
| 1717 |
|
| 1718 |
u.u = val; |
| 1719 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1720 |
if (unlikely(isnan(u.f)))
|
| 1721 |
return 0; |
| 1722 |
|
| 1723 |
return float64_to_int64(u.f, &env->spe_status);
|
| 1724 |
} |
| 1725 |
|
| 1726 |
static inline uint64_t _do_efdctui (uint64_t val) |
| 1727 |
{
|
| 1728 |
union {
|
| 1729 |
int64_t u; |
| 1730 |
float64 f; |
| 1731 |
} u; |
| 1732 |
|
| 1733 |
u.u = val; |
| 1734 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1735 |
if (unlikely(isnan(u.f)))
|
| 1736 |
return 0; |
| 1737 |
|
| 1738 |
return float64_to_uint64(u.f, &env->spe_status);
|
| 1739 |
} |
| 1740 |
|
| 1741 |
static inline int64_t _do_efdctsiz (uint64_t val) |
| 1742 |
{
|
| 1743 |
union {
|
| 1744 |
int64_t u; |
| 1745 |
float64 f; |
| 1746 |
} u; |
| 1747 |
|
| 1748 |
u.u = val; |
| 1749 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1750 |
if (unlikely(isnan(u.f)))
|
| 1751 |
return 0; |
| 1752 |
|
| 1753 |
return float64_to_int64_round_to_zero(u.f, &env->spe_status);
|
| 1754 |
} |
| 1755 |
|
| 1756 |
static inline uint64_t _do_efdctuiz (uint64_t val) |
| 1757 |
{
|
| 1758 |
union {
|
| 1759 |
int64_t u; |
| 1760 |
float64 f; |
| 1761 |
} u; |
| 1762 |
|
| 1763 |
u.u = val; |
| 1764 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1765 |
if (unlikely(isnan(u.f)))
|
| 1766 |
return 0; |
| 1767 |
|
| 1768 |
return float64_to_uint64_round_to_zero(u.f, &env->spe_status);
|
| 1769 |
} |
| 1770 |
|
| 1771 |
void do_efdcfsi (void) |
| 1772 |
{
|
| 1773 |
T0_64 = _do_efdcfsi(T0_64); |
| 1774 |
} |
| 1775 |
|
| 1776 |
void do_efdcfui (void) |
| 1777 |
{
|
| 1778 |
T0_64 = _do_efdcfui(T0_64); |
| 1779 |
} |
| 1780 |
|
| 1781 |
void do_efdctsi (void) |
| 1782 |
{
|
| 1783 |
T0_64 = _do_efdctsi(T0_64); |
| 1784 |
} |
| 1785 |
|
| 1786 |
void do_efdctui (void) |
| 1787 |
{
|
| 1788 |
T0_64 = _do_efdctui(T0_64); |
| 1789 |
} |
| 1790 |
|
| 1791 |
void do_efdctsiz (void) |
| 1792 |
{
|
| 1793 |
T0_64 = _do_efdctsiz(T0_64); |
| 1794 |
} |
| 1795 |
|
| 1796 |
void do_efdctuiz (void) |
| 1797 |
{
|
| 1798 |
T0_64 = _do_efdctuiz(T0_64); |
| 1799 |
} |
| 1800 |
|
| 1801 |
/* Double precision floating-point conversion to/from fractional */
|
| 1802 |
static inline uint64_t _do_efdcfsf (int64_t val) |
| 1803 |
{
|
| 1804 |
union {
|
| 1805 |
uint64_t u; |
| 1806 |
float64 f; |
| 1807 |
} u; |
| 1808 |
float64 tmp; |
| 1809 |
|
| 1810 |
u.f = int32_to_float64(val, &env->spe_status); |
| 1811 |
tmp = int64_to_float64(1ULL << 32, &env->spe_status); |
| 1812 |
u.f = float64_div(u.f, tmp, &env->spe_status); |
| 1813 |
|
| 1814 |
return u.u;
|
| 1815 |
} |
| 1816 |
|
| 1817 |
static inline uint64_t _do_efdcfuf (uint64_t val) |
| 1818 |
{
|
| 1819 |
union {
|
| 1820 |
uint64_t u; |
| 1821 |
float64 f; |
| 1822 |
} u; |
| 1823 |
float64 tmp; |
| 1824 |
|
| 1825 |
u.f = uint32_to_float64(val, &env->spe_status); |
| 1826 |
tmp = int64_to_float64(1ULL << 32, &env->spe_status); |
| 1827 |
u.f = float64_div(u.f, tmp, &env->spe_status); |
| 1828 |
|
| 1829 |
return u.u;
|
| 1830 |
} |
| 1831 |
|
| 1832 |
static inline int64_t _do_efdctsf (uint64_t val) |
| 1833 |
{
|
| 1834 |
union {
|
| 1835 |
int64_t u; |
| 1836 |
float64 f; |
| 1837 |
} u; |
| 1838 |
float64 tmp; |
| 1839 |
|
| 1840 |
u.u = val; |
| 1841 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1842 |
if (unlikely(isnan(u.f)))
|
| 1843 |
return 0; |
| 1844 |
tmp = uint64_to_float64(1ULL << 32, &env->spe_status); |
| 1845 |
u.f = float64_mul(u.f, tmp, &env->spe_status); |
| 1846 |
|
| 1847 |
return float64_to_int32(u.f, &env->spe_status);
|
| 1848 |
} |
| 1849 |
|
| 1850 |
static inline uint64_t _do_efdctuf (uint64_t val) |
| 1851 |
{
|
| 1852 |
union {
|
| 1853 |
int64_t u; |
| 1854 |
float64 f; |
| 1855 |
} u; |
| 1856 |
float64 tmp; |
| 1857 |
|
| 1858 |
u.u = val; |
| 1859 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1860 |
if (unlikely(isnan(u.f)))
|
| 1861 |
return 0; |
| 1862 |
tmp = uint64_to_float64(1ULL << 32, &env->spe_status); |
| 1863 |
u.f = float64_mul(u.f, tmp, &env->spe_status); |
| 1864 |
|
| 1865 |
return float64_to_uint32(u.f, &env->spe_status);
|
| 1866 |
} |
| 1867 |
|
| 1868 |
static inline int64_t _do_efdctsfz (uint64_t val) |
| 1869 |
{
|
| 1870 |
union {
|
| 1871 |
int64_t u; |
| 1872 |
float64 f; |
| 1873 |
} u; |
| 1874 |
float64 tmp; |
| 1875 |
|
| 1876 |
u.u = val; |
| 1877 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1878 |
if (unlikely(isnan(u.f)))
|
| 1879 |
return 0; |
| 1880 |
tmp = uint64_to_float64(1ULL << 32, &env->spe_status); |
| 1881 |
u.f = float64_mul(u.f, tmp, &env->spe_status); |
| 1882 |
|
| 1883 |
return float64_to_int32_round_to_zero(u.f, &env->spe_status);
|
| 1884 |
} |
| 1885 |
|
| 1886 |
static inline uint64_t _do_efdctufz (uint64_t val) |
| 1887 |
{
|
| 1888 |
union {
|
| 1889 |
int64_t u; |
| 1890 |
float64 f; |
| 1891 |
} u; |
| 1892 |
float64 tmp; |
| 1893 |
|
| 1894 |
u.u = val; |
| 1895 |
/* NaN are not treated the same way IEEE 754 does */
|
| 1896 |
if (unlikely(isnan(u.f)))
|
| 1897 |
return 0; |
| 1898 |
tmp = uint64_to_float64(1ULL << 32, &env->spe_status); |
| 1899 |
u.f = float64_mul(u.f, tmp, &env->spe_status); |
| 1900 |
|
| 1901 |
return float64_to_uint32_round_to_zero(u.f, &env->spe_status);
|
| 1902 |
} |
| 1903 |
|
| 1904 |
void do_efdcfsf (void) |
| 1905 |
{
|
| 1906 |
T0_64 = _do_efdcfsf(T0_64); |
| 1907 |
} |
| 1908 |
|
| 1909 |
void do_efdcfuf (void) |
| 1910 |
{
|
| 1911 |
T0_64 = _do_efdcfuf(T0_64); |
| 1912 |
} |
| 1913 |
|
| 1914 |
void do_efdctsf (void) |
| 1915 |
{
|
| 1916 |
T0_64 = _do_efdctsf(T0_64); |
| 1917 |
} |
| 1918 |
|
| 1919 |
void do_efdctuf (void) |
| 1920 |
{
|
| 1921 |
T0_64 = _do_efdctuf(T0_64); |
| 1922 |
} |
| 1923 |
|
| 1924 |
void do_efdctsfz (void) |
| 1925 |
{
|
| 1926 |
T0_64 = _do_efdctsfz(T0_64); |
| 1927 |
} |
| 1928 |
|
| 1929 |
void do_efdctufz (void) |
| 1930 |
{
|
| 1931 |
T0_64 = _do_efdctufz(T0_64); |
| 1932 |
} |
| 1933 |
|
| 1934 |
/* Floating point conversion between single and double precision */
|
| 1935 |
static inline uint32_t _do_efscfd (uint64_t val) |
| 1936 |
{
|
| 1937 |
union {
|
| 1938 |
uint64_t u; |
| 1939 |
float64 f; |
| 1940 |
} u1; |
| 1941 |
union {
|
| 1942 |
uint32_t u; |
| 1943 |
float32 f; |
| 1944 |
} u2; |
| 1945 |
|
| 1946 |
u1.u = val; |
| 1947 |
u2.f = float64_to_float32(u1.f, &env->spe_status); |
| 1948 |
|
| 1949 |
return u2.u;
|
| 1950 |
} |
| 1951 |
|
| 1952 |
static inline uint64_t _do_efdcfs (uint32_t val) |
| 1953 |
{
|
| 1954 |
union {
|
| 1955 |
uint64_t u; |
| 1956 |
float64 f; |
| 1957 |
} u2; |
| 1958 |
union {
|
| 1959 |
uint32_t u; |
| 1960 |
float32 f; |
| 1961 |
} u1; |
| 1962 |
|
| 1963 |
u1.u = val; |
| 1964 |
u2.f = float32_to_float64(u1.f, &env->spe_status); |
| 1965 |
|
| 1966 |
return u2.u;
|
| 1967 |
} |
| 1968 |
|
| 1969 |
void do_efscfd (void) |
| 1970 |
{
|
| 1971 |
T0_64 = _do_efscfd(T0_64); |
| 1972 |
} |
| 1973 |
|
| 1974 |
void do_efdcfs (void) |
| 1975 |
{
|
| 1976 |
T0_64 = _do_efdcfs(T0_64); |
| 1977 |
} |
| 1978 |
|
| 1979 |
/* Single precision fixed-point vector arithmetic */
|
| 1980 |
/* evfsabs */
|
| 1981 |
DO_SPE_OP1(fsabs); |
| 1982 |
/* evfsnabs */
|
| 1983 |
DO_SPE_OP1(fsnabs); |
| 1984 |
/* evfsneg */
|
| 1985 |
DO_SPE_OP1(fsneg); |
| 1986 |
/* evfsadd */
|
| 1987 |
DO_SPE_OP2(fsadd); |
| 1988 |
/* evfssub */
|
| 1989 |
DO_SPE_OP2(fssub); |
| 1990 |
/* evfsmul */
|
| 1991 |
DO_SPE_OP2(fsmul); |
| 1992 |
/* evfsdiv */
|
| 1993 |
DO_SPE_OP2(fsdiv); |
| 1994 |
|
| 1995 |
/* Single-precision floating-point comparisons */
|
| 1996 |
static inline int _do_efscmplt (uint32_t op1, uint32_t op2) |
| 1997 |
{
|
| 1998 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
| 1999 |
return _do_efststlt(op1, op2);
|
| 2000 |
} |
| 2001 |
|
| 2002 |
static inline int _do_efscmpgt (uint32_t op1, uint32_t op2) |
| 2003 |
{
|
| 2004 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
| 2005 |
return _do_efststgt(op1, op2);
|
| 2006 |
} |
| 2007 |
|
| 2008 |
static inline int _do_efscmpeq (uint32_t op1, uint32_t op2) |
| 2009 |
{
|
| 2010 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
| 2011 |
return _do_efststeq(op1, op2);
|
| 2012 |
} |
| 2013 |
|
| 2014 |
void do_efscmplt (void) |
| 2015 |
{
|
| 2016 |
T0 = _do_efscmplt(T0_64, T1_64); |
| 2017 |
} |
| 2018 |
|
| 2019 |
void do_efscmpgt (void) |
| 2020 |
{
|
| 2021 |
T0 = _do_efscmpgt(T0_64, T1_64); |
| 2022 |
} |
| 2023 |
|
| 2024 |
void do_efscmpeq (void) |
| 2025 |
{
|
| 2026 |
T0 = _do_efscmpeq(T0_64, T1_64); |
| 2027 |
} |
| 2028 |
|
| 2029 |
/* Single-precision floating-point vector comparisons */
|
| 2030 |
/* evfscmplt */
|
| 2031 |
DO_SPE_CMP(fscmplt); |
| 2032 |
/* evfscmpgt */
|
| 2033 |
DO_SPE_CMP(fscmpgt); |
| 2034 |
/* evfscmpeq */
|
| 2035 |
DO_SPE_CMP(fscmpeq); |
| 2036 |
/* evfststlt */
|
| 2037 |
DO_SPE_CMP(fststlt); |
| 2038 |
/* evfststgt */
|
| 2039 |
DO_SPE_CMP(fststgt); |
| 2040 |
/* evfststeq */
|
| 2041 |
DO_SPE_CMP(fststeq); |
| 2042 |
|
| 2043 |
/* Single-precision floating-point vector conversions */
|
| 2044 |
/* evfscfsi */
|
| 2045 |
DO_SPE_OP1(fscfsi); |
| 2046 |
/* evfscfui */
|
| 2047 |
DO_SPE_OP1(fscfui); |
| 2048 |
/* evfscfuf */
|
| 2049 |
DO_SPE_OP1(fscfuf); |
| 2050 |
/* evfscfsf */
|
| 2051 |
DO_SPE_OP1(fscfsf); |
| 2052 |
/* evfsctsi */
|
| 2053 |
DO_SPE_OP1(fsctsi); |
| 2054 |
/* evfsctui */
|
| 2055 |
DO_SPE_OP1(fsctui); |
| 2056 |
/* evfsctsiz */
|
| 2057 |
DO_SPE_OP1(fsctsiz); |
| 2058 |
/* evfsctuiz */
|
| 2059 |
DO_SPE_OP1(fsctuiz); |
| 2060 |
/* evfsctsf */
|
| 2061 |
DO_SPE_OP1(fsctsf); |
| 2062 |
/* evfsctuf */
|
| 2063 |
DO_SPE_OP1(fsctuf); |
| 2064 |
#endif /* defined(TARGET_PPCSPE) */ |
| 2065 |
|
| 2066 |
/*****************************************************************************/
|
| 2067 |
/* Softmmu support */
|
| 2068 |
#if !defined (CONFIG_USER_ONLY)
|
| 2069 |
|
| 2070 |
#define MMUSUFFIX _mmu
|
| 2071 |
#define GETPC() (__builtin_return_address(0)) |
| 2072 |
|
| 2073 |
#define SHIFT 0 |
| 2074 |
#include "softmmu_template.h" |
| 2075 |
|
| 2076 |
#define SHIFT 1 |
| 2077 |
#include "softmmu_template.h" |
| 2078 |
|
| 2079 |
#define SHIFT 2 |
| 2080 |
#include "softmmu_template.h" |
| 2081 |
|
| 2082 |
#define SHIFT 3 |
| 2083 |
#include "softmmu_template.h" |
| 2084 |
|
| 2085 |
/* try to fill the TLB and return an exception if error. If retaddr is
|
| 2086 |
NULL, it means that the function was called in C code (i.e. not
|
| 2087 |
from generated code or from helper.c) */
|
| 2088 |
/* XXX: fix it to restore all registers */
|
| 2089 |
void tlb_fill (target_ulong addr, int is_write, int is_user, void *retaddr) |
| 2090 |
{
|
| 2091 |
TranslationBlock *tb; |
| 2092 |
CPUState *saved_env; |
| 2093 |
target_phys_addr_t pc; |
| 2094 |
int ret;
|
| 2095 |
|
| 2096 |
/* XXX: hack to restore env in all cases, even if not called from
|
| 2097 |
generated code */
|
| 2098 |
saved_env = env; |
| 2099 |
env = cpu_single_env; |
| 2100 |
ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, is_user, 1);
|
| 2101 |
if (unlikely(ret != 0)) { |
| 2102 |
if (likely(retaddr)) {
|
| 2103 |
/* now we have a real cpu fault */
|
| 2104 |
pc = (target_phys_addr_t)retaddr; |
| 2105 |
tb = tb_find_pc(pc); |
| 2106 |
if (likely(tb)) {
|
| 2107 |
/* the PC is inside the translated code. It means that we have
|
| 2108 |
a virtual CPU fault */
|
| 2109 |
cpu_restore_state(tb, env, pc, NULL);
|
| 2110 |
} |
| 2111 |
} |
| 2112 |
do_raise_exception_err(env->exception_index, env->error_code); |
| 2113 |
} |
| 2114 |
env = saved_env; |
| 2115 |
} |
| 2116 |
|
| 2117 |
/* TLB invalidation helpers */
|
| 2118 |
void do_tlbia (void) |
| 2119 |
{
|
| 2120 |
if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_6xx)) {
|
| 2121 |
ppc6xx_tlb_invalidate_all(env); |
| 2122 |
} else if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_4xx)) { |
| 2123 |
/* XXX: TODO */
|
| 2124 |
#if 0
|
| 2125 |
ppcbooke_tlb_invalidate_all(env);
|
| 2126 |
#endif
|
| 2127 |
} else {
|
| 2128 |
tlb_flush(env, 1);
|
| 2129 |
} |
| 2130 |
} |
| 2131 |
|
| 2132 |
void do_tlbie (void) |
| 2133 |
{
|
| 2134 |
T0 = (uint32_t)T0; |
| 2135 |
#if !defined(FLUSH_ALL_TLBS)
|
| 2136 |
if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_6xx)) {
|
| 2137 |
ppc6xx_tlb_invalidate_virt(env, T0 & TARGET_PAGE_MASK, 0);
|
| 2138 |
if (env->id_tlbs == 1) |
| 2139 |
ppc6xx_tlb_invalidate_virt(env, T0 & TARGET_PAGE_MASK, 1);
|
| 2140 |
} else if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_4xx)) { |
| 2141 |
/* XXX: TODO */
|
| 2142 |
#if 0
|
| 2143 |
ppcbooke_tlb_invalidate_virt(env, T0 & TARGET_PAGE_MASK,
|
| 2144 |
env->spr[SPR_BOOKE_PID]);
|
| 2145 |
#endif
|
| 2146 |
} else {
|
| 2147 |
/* tlbie invalidate TLBs for all segments */
|
| 2148 |
T0 &= TARGET_PAGE_MASK; |
| 2149 |
T0 &= ~((target_ulong)-1 << 28); |
| 2150 |
/* XXX: this case should be optimized,
|
| 2151 |
* giving a mask to tlb_flush_page
|
| 2152 |
*/
|
| 2153 |
tlb_flush_page(env, T0 | (0x0 << 28)); |
| 2154 |
tlb_flush_page(env, T0 | (0x1 << 28)); |
| 2155 |
tlb_flush_page(env, T0 | (0x2 << 28)); |
| 2156 |
tlb_flush_page(env, T0 | (0x3 << 28)); |
| 2157 |
tlb_flush_page(env, T0 | (0x4 << 28)); |
| 2158 |
tlb_flush_page(env, T0 | (0x5 << 28)); |
| 2159 |
tlb_flush_page(env, T0 | (0x6 << 28)); |
| 2160 |
tlb_flush_page(env, T0 | (0x7 << 28)); |
| 2161 |
tlb_flush_page(env, T0 | (0x8 << 28)); |
| 2162 |
tlb_flush_page(env, T0 | (0x9 << 28)); |
| 2163 |
tlb_flush_page(env, T0 | (0xA << 28)); |
| 2164 |
tlb_flush_page(env, T0 | (0xB << 28)); |
| 2165 |
tlb_flush_page(env, T0 | (0xC << 28)); |
| 2166 |
tlb_flush_page(env, T0 | (0xD << 28)); |
| 2167 |
tlb_flush_page(env, T0 | (0xE << 28)); |
| 2168 |
tlb_flush_page(env, T0 | (0xF << 28)); |
| 2169 |
} |
| 2170 |
#else
|
| 2171 |
do_tlbia(); |
| 2172 |
#endif
|
| 2173 |
} |
| 2174 |
|
| 2175 |
#if defined(TARGET_PPC64)
|
| 2176 |
void do_tlbie_64 (void) |
| 2177 |
{
|
| 2178 |
T0 = (uint64_t)T0; |
| 2179 |
#if !defined(FLUSH_ALL_TLBS)
|
| 2180 |
if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_6xx)) {
|
| 2181 |
ppc6xx_tlb_invalidate_virt(env, T0 & TARGET_PAGE_MASK, 0);
|
| 2182 |
if (env->id_tlbs == 1) |
| 2183 |
ppc6xx_tlb_invalidate_virt(env, T0 & TARGET_PAGE_MASK, 1);
|
| 2184 |
} else if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_4xx)) { |
| 2185 |
/* XXX: TODO */
|
| 2186 |
#if 0
|
| 2187 |
ppcbooke_tlb_invalidate_virt(env, T0 & TARGET_PAGE_MASK,
|
| 2188 |
env->spr[SPR_BOOKE_PID]);
|
| 2189 |
#endif
|
| 2190 |
} else {
|
| 2191 |
/* tlbie invalidate TLBs for all segments
|
| 2192 |
* As we have 2^36 segments, invalidate all qemu TLBs
|
| 2193 |
*/
|
| 2194 |
#if 0
|
| 2195 |
T0 &= TARGET_PAGE_MASK;
|
| 2196 |
T0 &= ~((target_ulong)-1 << 28);
|
| 2197 |
/* XXX: this case should be optimized,
|
| 2198 |
* giving a mask to tlb_flush_page
|
| 2199 |
*/
|
| 2200 |
tlb_flush_page(env, T0 | (0x0 << 28));
|
| 2201 |
tlb_flush_page(env, T0 | (0x1 << 28));
|
| 2202 |
tlb_flush_page(env, T0 | (0x2 << 28));
|
| 2203 |
tlb_flush_page(env, T0 | (0x3 << 28));
|
| 2204 |
tlb_flush_page(env, T0 | (0x4 << 28));
|
| 2205 |
tlb_flush_page(env, T0 | (0x5 << 28));
|
| 2206 |
tlb_flush_page(env, T0 | (0x6 << 28));
|
| 2207 |
tlb_flush_page(env, T0 | (0x7 << 28));
|
| 2208 |
tlb_flush_page(env, T0 | (0x8 << 28));
|
| 2209 |
tlb_flush_page(env, T0 | (0x9 << 28));
|
| 2210 |
tlb_flush_page(env, T0 | (0xA << 28));
|
| 2211 |
tlb_flush_page(env, T0 | (0xB << 28));
|
| 2212 |
tlb_flush_page(env, T0 | (0xC << 28));
|
| 2213 |
tlb_flush_page(env, T0 | (0xD << 28));
|
| 2214 |
tlb_flush_page(env, T0 | (0xE << 28));
|
| 2215 |
tlb_flush_page(env, T0 | (0xF << 28));
|
| 2216 |
#else
|
| 2217 |
tlb_flush(env, 1);
|
| 2218 |
#endif
|
| 2219 |
} |
| 2220 |
#else
|
| 2221 |
do_tlbia(); |
| 2222 |
#endif
|
| 2223 |
} |
| 2224 |
#endif
|
| 2225 |
|
| 2226 |
#if defined(TARGET_PPC64)
|
| 2227 |
void do_slbia (void) |
| 2228 |
{
|
| 2229 |
/* XXX: TODO */
|
| 2230 |
tlb_flush(env, 1);
|
| 2231 |
} |
| 2232 |
|
| 2233 |
void do_slbie (void) |
| 2234 |
{
|
| 2235 |
/* XXX: TODO */
|
| 2236 |
tlb_flush(env, 1);
|
| 2237 |
} |
| 2238 |
#endif
|
| 2239 |
|
| 2240 |
/* Software driven TLBs management */
|
| 2241 |
/* PowerPC 602/603 software TLB load instructions helpers */
|
| 2242 |
void do_load_6xx_tlb (int is_code) |
| 2243 |
{
|
| 2244 |
target_ulong RPN, CMP, EPN; |
| 2245 |
int way;
|
| 2246 |
|
| 2247 |
RPN = env->spr[SPR_RPA]; |
| 2248 |
if (is_code) {
|
| 2249 |
CMP = env->spr[SPR_ICMP]; |
| 2250 |
EPN = env->spr[SPR_IMISS]; |
| 2251 |
} else {
|
| 2252 |
CMP = env->spr[SPR_DCMP]; |
| 2253 |
EPN = env->spr[SPR_DMISS]; |
| 2254 |
} |
| 2255 |
way = (env->spr[SPR_SRR1] >> 17) & 1; |
| 2256 |
#if defined (DEBUG_SOFTWARE_TLB)
|
| 2257 |
if (loglevel != 0) { |
| 2258 |
fprintf(logfile, "%s: EPN %08lx %08lx PTE0 %08lx PTE1 %08lx way %d\n",
|
| 2259 |
__func__, (unsigned long)T0, (unsigned long)EPN, |
| 2260 |
(unsigned long)CMP, (unsigned long)RPN, way); |
| 2261 |
} |
| 2262 |
#endif
|
| 2263 |
/* Store this TLB */
|
| 2264 |
ppc6xx_tlb_store(env, (uint32_t)(T0 & TARGET_PAGE_MASK), |
| 2265 |
way, is_code, CMP, RPN); |
| 2266 |
} |
| 2267 |
|
| 2268 |
/* Helpers for 4xx TLB management */
|
| 2269 |
void do_4xx_tlbia (void) |
| 2270 |
{
|
| 2271 |
#if 0
|
| 2272 |
ppc_tlb_t *tlb;
|
| 2273 |
target_ulong page, end;
|
| 2274 |
int i;
|
| 2275 |
|
| 2276 |
for (i = 0; i < 64; i++) {
|
| 2277 |
tlb = &env->tlb[i];
|
| 2278 |
if (tlb->prot & PAGE_VALID) {
|
| 2279 |
end = tlb->EPN + tlb->size;
|
| 2280 |
for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
|
| 2281 |
tlb_flush_page(env, page);
|
| 2282 |
tlb->prot &= ~PAGE_VALID;
|
| 2283 |
}
|
| 2284 |
}
|
| 2285 |
#endif
|
| 2286 |
} |
| 2287 |
|
| 2288 |
void do_4xx_tlbre_lo (void) |
| 2289 |
{
|
| 2290 |
#if 0
|
| 2291 |
ppc_tlb_t *tlb;
|
| 2292 |
|
| 2293 |
T0 &= 0x3F;
|
| 2294 |
tlb = &env->tlb[T0];
|
| 2295 |
T0 = tlb->stor[0];
|
| 2296 |
env->spr[SPR_40x_PID] = tlb->pid;
|
| 2297 |
#endif
|
| 2298 |
} |
| 2299 |
|
| 2300 |
void do_4xx_tlbre_hi (void) |
| 2301 |
{
|
| 2302 |
#if 0
|
| 2303 |
ppc_tlb_t *tlb;
|
| 2304 |
|
| 2305 |
T0 &= 0x3F;
|
| 2306 |
tlb = &env->tlb[T0];
|
| 2307 |
T0 = tlb->stor[1];
|
| 2308 |
#endif
|
| 2309 |
} |
| 2310 |
|
| 2311 |
static int tlb_4xx_search (target_ulong virtual) |
| 2312 |
{
|
| 2313 |
#if 0
|
| 2314 |
ppc_tlb_t *tlb;
|
| 2315 |
target_ulong base, mask;
|
| 2316 |
int i, ret;
|
| 2317 |
|
| 2318 |
/* Default return value is no match */
|
| 2319 |
ret = -1;
|
| 2320 |
for (i = 0; i < 64; i++) {
|
| 2321 |
tlb = &env->tlb[i];
|
| 2322 |
/* Check TLB validity */
|
| 2323 |
if (!(tlb->prot & PAGE_VALID))
|
| 2324 |
continue;
|
| 2325 |
/* Check TLB PID vs current PID */
|
| 2326 |
if (tlb->pid != 0 && tlb->pid != env->spr[SPR_40x_PID])
|
| 2327 |
continue;
|
| 2328 |
/* Check TLB address vs virtual address */
|
| 2329 |
base = tlb->EPN;
|
| 2330 |
mask = ~(tlb->size - 1);
|
| 2331 |
if ((base & mask) != (virtual & mask))
|
| 2332 |
continue;
|
| 2333 |
ret = i;
|
| 2334 |
break;
|
| 2335 |
}
|
| 2336 |
|
| 2337 |
return ret;
|
| 2338 |
#else
|
| 2339 |
return -1; |
| 2340 |
#endif
|
| 2341 |
} |
| 2342 |
|
| 2343 |
void do_4xx_tlbsx (void) |
| 2344 |
{
|
| 2345 |
T0 = tlb_4xx_search(T0); |
| 2346 |
} |
| 2347 |
|
| 2348 |
void do_4xx_tlbsx_ (void) |
| 2349 |
{
|
| 2350 |
int tmp = xer_ov;
|
| 2351 |
|
| 2352 |
T0 = tlb_4xx_search(T0); |
| 2353 |
if (T0 != -1) |
| 2354 |
tmp |= 0x02;
|
| 2355 |
env->crf[0] = tmp;
|
| 2356 |
} |
| 2357 |
|
| 2358 |
void do_4xx_tlbwe_lo (void) |
| 2359 |
{
|
| 2360 |
#if 0
|
| 2361 |
ppc_tlb_t *tlb;
|
| 2362 |
target_ulong page, end;
|
| 2363 |
|
| 2364 |
T0 &= 0x3F;
|
| 2365 |
tlb = &env->tlb[T0];
|
| 2366 |
/* Invalidate previous TLB (if it's valid) */
|
| 2367 |
if (tlb->prot & PAGE_VALID) {
|
| 2368 |
end = tlb->EPN + tlb->size;
|
| 2369 |
for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
|
| 2370 |
tlb_flush_page(env, page);
|
| 2371 |
}
|
| 2372 |
tlb->size = 1024 << (2 * ((T1 >> 7) & 0x7));
|
| 2373 |
tlb->EPN = (T1 & 0xFFFFFC00) & ~(tlb->size - 1);
|
| 2374 |
if (T1 & 0x400)
|
| 2375 |
tlb->prot |= PAGE_VALID;
|
| 2376 |
else
|
| 2377 |
tlb->prot &= ~PAGE_VALID;
|
| 2378 |
tlb->pid = env->spr[SPR_BOOKE_PID]; /* PID */
|
| 2379 |
/* Invalidate new TLB (if valid) */
|
| 2380 |
if (tlb->prot & PAGE_VALID) {
|
| 2381 |
end = tlb->EPN + tlb->size;
|
| 2382 |
for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
|
| 2383 |
tlb_flush_page(env, page);
|
| 2384 |
}
|
| 2385 |
#endif
|
| 2386 |
} |
| 2387 |
|
| 2388 |
void do_4xx_tlbwe_hi (void) |
| 2389 |
{
|
| 2390 |
#if 0
|
| 2391 |
ppc_tlb_t *tlb;
|
| 2392 |
|
| 2393 |
T0 &= 0x3F;
|
| 2394 |
tlb = &env->tlb[T0];
|
| 2395 |
tlb->RPN = T1 & 0xFFFFFC00;
|
| 2396 |
tlb->prot = PAGE_READ;
|
| 2397 |
if (T1 & 0x200)
|
| 2398 |
tlb->prot |= PAGE_EXEC;
|
| 2399 |
if (T1 & 0x100)
|
| 2400 |
tlb->prot |= PAGE_WRITE;
|
| 2401 |
#endif
|
| 2402 |
} |
| 2403 |
#endif /* !CONFIG_USER_ONLY */ |