root / target-ppc / int_helper.c @ 75d5ec89
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/*
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* PowerPC integer and vector 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, see <http://www.gnu.org/licenses/>.
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*/
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#include "cpu.h" |
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#include "qemu/host-utils.h" |
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#include "helper.h" |
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#include "helper_regs.h" |
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/*****************************************************************************/
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/* Fixed point operations helpers */
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#if defined(TARGET_PPC64)
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uint64_t helper_mulldo(CPUPPCState *env, uint64_t arg1, uint64_t arg2) |
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{
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int64_t th; |
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uint64_t tl; |
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muls64(&tl, (uint64_t *)&th, arg1, arg2); |
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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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env->ov = 0;
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} else {
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env->so = env->ov = 1;
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} |
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return (int64_t)tl;
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} |
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#endif
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target_ulong helper_cntlzw(target_ulong t) |
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{
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return clz32(t);
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} |
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|
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#if defined(TARGET_PPC64)
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target_ulong helper_cntlzd(target_ulong t) |
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{
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return clz64(t);
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} |
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#endif
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/* shift right arithmetic helper */
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target_ulong helper_sraw(CPUPPCState *env, target_ulong value, |
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target_ulong shift) |
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{
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int32_t ret; |
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if (likely(!(shift & 0x20))) { |
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if (likely((uint32_t)shift != 0)) { |
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shift &= 0x1f;
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ret = (int32_t)value >> shift; |
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if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) { |
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env->ca = 0;
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} else {
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env->ca = 1;
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} |
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} else {
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ret = (int32_t)value; |
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env->ca = 0;
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} |
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} else {
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ret = (int32_t)value >> 31;
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env->ca = (ret != 0);
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} |
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return (target_long)ret;
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} |
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#if defined(TARGET_PPC64)
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target_ulong helper_srad(CPUPPCState *env, target_ulong value, |
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target_ulong shift) |
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{
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int64_t ret; |
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if (likely(!(shift & 0x40))) { |
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if (likely((uint64_t)shift != 0)) { |
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shift &= 0x3f;
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ret = (int64_t)value >> shift; |
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if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) { |
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env->ca = 0;
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} else {
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env->ca = 1;
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} |
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} else {
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ret = (int64_t)value; |
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env->ca = 0;
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} |
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} else {
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ret = (int64_t)value >> 63;
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env->ca = (ret != 0);
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} |
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return ret;
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} |
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#endif
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#if defined(TARGET_PPC64)
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target_ulong helper_popcntb(target_ulong val) |
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{
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val = (val & 0x5555555555555555ULL) + ((val >> 1) & |
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0x5555555555555555ULL);
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val = (val & 0x3333333333333333ULL) + ((val >> 2) & |
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0x3333333333333333ULL);
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val = (val & 0x0f0f0f0f0f0f0f0fULL) + ((val >> 4) & |
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0x0f0f0f0f0f0f0f0fULL);
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return val;
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} |
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target_ulong helper_popcntw(target_ulong val) |
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{
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val = (val & 0x5555555555555555ULL) + ((val >> 1) & |
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0x5555555555555555ULL);
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val = (val & 0x3333333333333333ULL) + ((val >> 2) & |
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0x3333333333333333ULL);
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val = (val & 0x0f0f0f0f0f0f0f0fULL) + ((val >> 4) & |
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0x0f0f0f0f0f0f0f0fULL);
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val = (val & 0x00ff00ff00ff00ffULL) + ((val >> 8) & |
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0x00ff00ff00ff00ffULL);
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val = (val & 0x0000ffff0000ffffULL) + ((val >> 16) & |
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0x0000ffff0000ffffULL);
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return val;
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} |
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target_ulong helper_popcntd(target_ulong val) |
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{
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return ctpop64(val);
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} |
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#else
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target_ulong helper_popcntb(target_ulong val) |
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{
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val = (val & 0x55555555) + ((val >> 1) & 0x55555555); |
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val = (val & 0x33333333) + ((val >> 2) & 0x33333333); |
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val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f); |
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return val;
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} |
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target_ulong helper_popcntw(target_ulong val) |
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{
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val = (val & 0x55555555) + ((val >> 1) & 0x55555555); |
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val = (val & 0x33333333) + ((val >> 2) & 0x33333333); |
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val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f); |
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val = (val & 0x00ff00ff) + ((val >> 8) & 0x00ff00ff); |
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val = (val & 0x0000ffff) + ((val >> 16) & 0x0000ffff); |
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return val;
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} |
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#endif
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/*****************************************************************************/
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/* PowerPC 601 specific instructions (POWER bridge) */
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target_ulong helper_div(CPUPPCState *env, target_ulong arg1, target_ulong arg2) |
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{
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uint64_t tmp = (uint64_t)arg1 << 32 | env->spr[SPR_MQ];
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if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
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(int32_t)arg2 == 0) {
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env->spr[SPR_MQ] = 0;
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return INT32_MIN;
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} else {
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env->spr[SPR_MQ] = tmp % arg2; |
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return tmp / (int32_t)arg2;
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} |
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} |
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target_ulong helper_divo(CPUPPCState *env, target_ulong arg1, |
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target_ulong arg2) |
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{
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uint64_t tmp = (uint64_t)arg1 << 32 | env->spr[SPR_MQ];
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if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
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(int32_t)arg2 == 0) {
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env->so = env->ov = 1;
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env->spr[SPR_MQ] = 0;
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return INT32_MIN;
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} else {
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env->spr[SPR_MQ] = tmp % arg2; |
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tmp /= (int32_t)arg2; |
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if ((int32_t)tmp != tmp) {
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env->so = env->ov = 1;
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} else {
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env->ov = 0;
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} |
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return tmp;
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} |
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} |
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target_ulong helper_divs(CPUPPCState *env, target_ulong arg1, |
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target_ulong arg2) |
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{
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if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
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(int32_t)arg2 == 0) {
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env->spr[SPR_MQ] = 0;
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return INT32_MIN;
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} else {
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env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2; |
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return (int32_t)arg1 / (int32_t)arg2;
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} |
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} |
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target_ulong helper_divso(CPUPPCState *env, target_ulong arg1, |
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target_ulong arg2) |
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{
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if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
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(int32_t)arg2 == 0) {
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env->so = env->ov = 1;
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env->spr[SPR_MQ] = 0;
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return INT32_MIN;
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} else {
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env->ov = 0;
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env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2; |
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return (int32_t)arg1 / (int32_t)arg2;
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} |
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} |
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/*****************************************************************************/
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/* 602 specific instructions */
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/* mfrom is the most crazy instruction ever seen, imho ! */
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/* Real implementation uses a ROM table. Do the same */
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/* Extremely decomposed:
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* -arg / 256
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* return 256 * log10(10 + 1.0) + 0.5
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*/
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#if !defined(CONFIG_USER_ONLY)
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target_ulong helper_602_mfrom(target_ulong arg) |
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{
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if (likely(arg < 602)) { |
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#include "mfrom_table.c" |
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return mfrom_ROM_table[arg];
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} else {
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return 0; |
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} |
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} |
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#endif
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/*****************************************************************************/
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/* Altivec extension helpers */
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#if defined(HOST_WORDS_BIGENDIAN)
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#define HI_IDX 0 |
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#define LO_IDX 1 |
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#else
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#define HI_IDX 1 |
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#define LO_IDX 0 |
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#endif
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#if defined(HOST_WORDS_BIGENDIAN)
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#define VECTOR_FOR_INORDER_I(index, element) \
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for (index = 0; index < ARRAY_SIZE(r->element); index++) |
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#else
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#define VECTOR_FOR_INORDER_I(index, element) \
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for (index = ARRAY_SIZE(r->element)-1; index >= 0; index--) |
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#endif
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/* Saturating arithmetic helpers. */
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#define SATCVT(from, to, from_type, to_type, min, max) \
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static inline to_type cvt##from##to(from_type x, int *sat) \ |
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{ \
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to_type r; \ |
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\ |
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if (x < (from_type)min) { \
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r = min; \ |
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*sat = 1; \
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} else if (x > (from_type)max) { \ |
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r = max; \ |
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*sat = 1; \
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} else { \
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r = x; \ |
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} \ |
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return r; \
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} |
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#define SATCVTU(from, to, from_type, to_type, min, max) \
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static inline to_type cvt##from##to(from_type x, int *sat) \ |
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{ \
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to_type r; \ |
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\ |
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if (x > (from_type)max) { \
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r = max; \ |
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*sat = 1; \
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} else { \
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r = x; \ |
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} \ |
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return r; \
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} |
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SATCVT(sh, sb, int16_t, int8_t, INT8_MIN, INT8_MAX) |
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SATCVT(sw, sh, int32_t, int16_t, INT16_MIN, INT16_MAX) |
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SATCVT(sd, sw, int64_t, int32_t, INT32_MIN, INT32_MAX) |
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SATCVTU(uh, ub, uint16_t, uint8_t, 0, UINT8_MAX)
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SATCVTU(uw, uh, uint32_t, uint16_t, 0, UINT16_MAX)
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SATCVTU(ud, uw, uint64_t, uint32_t, 0, UINT32_MAX)
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SATCVT(sh, ub, int16_t, uint8_t, 0, UINT8_MAX)
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SATCVT(sw, uh, int32_t, uint16_t, 0, UINT16_MAX)
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SATCVT(sd, uw, int64_t, uint32_t, 0, UINT32_MAX)
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#undef SATCVT
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#undef SATCVTU
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void helper_lvsl(ppc_avr_t *r, target_ulong sh)
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{
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int i, j = (sh & 0xf); |
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VECTOR_FOR_INORDER_I(i, u8) {
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r->u8[i] = j++; |
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} |
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} |
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void helper_lvsr(ppc_avr_t *r, target_ulong sh)
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{
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int i, j = 0x10 - (sh & 0xf); |
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VECTOR_FOR_INORDER_I(i, u8) {
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r->u8[i] = j++; |
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} |
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} |
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void helper_mtvscr(CPUPPCState *env, ppc_avr_t *r)
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{
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#if defined(HOST_WORDS_BIGENDIAN)
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env->vscr = r->u32[3];
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#else
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env->vscr = r->u32[0];
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#endif
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set_flush_to_zero(vscr_nj, &env->vec_status); |
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} |
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void helper_vaddcuw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(r->u32); i++) { |
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r->u32[i] = ~a->u32[i] < b->u32[i]; |
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} |
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} |
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|
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#define VARITH_DO(name, op, element) \
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void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
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{ \
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int i; \
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\ |
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for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
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r->element[i] = a->element[i] op b->element[i]; \ |
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} \ |
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} |
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#define VARITH(suffix, element) \
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VARITH_DO(add##suffix, +, element) \ |
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VARITH_DO(sub##suffix, -, element) |
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VARITH(ubm, u8) |
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VARITH(uhm, u16) |
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VARITH(uwm, u32) |
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#undef VARITH_DO
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#undef VARITH
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|
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#define VARITHFP(suffix, func) \
|
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void helper_v##suffix(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, \ |
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ppc_avr_t *b) \ |
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{ \
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int i; \
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\ |
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for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
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r->f[i] = func(a->f[i], b->f[i], &env->vec_status); \ |
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} \ |
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} |
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VARITHFP(addfp, float32_add) |
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VARITHFP(subfp, float32_sub) |
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VARITHFP(minfp, float32_min) |
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VARITHFP(maxfp, float32_max) |
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#undef VARITHFP
|
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|
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#define VARITHFPFMA(suffix, type) \
|
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void helper_v##suffix(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, \ |
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ppc_avr_t *b, ppc_avr_t *c) \ |
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{ \
|
| 382 |
int i; \
|
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for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| 384 |
r->f[i] = float32_muladd(a->f[i], c->f[i], b->f[i], \ |
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type, &env->vec_status); \ |
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} \ |
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} |
| 388 |
VARITHFPFMA(maddfp, 0);
|
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VARITHFPFMA(nmsubfp, float_muladd_negate_result | float_muladd_negate_c); |
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#undef VARITHFPFMA
|
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|
| 392 |
#define VARITHSAT_CASE(type, op, cvt, element) \
|
| 393 |
{ \
|
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type result = (type)a->element[i] op (type)b->element[i]; \ |
| 395 |
r->element[i] = cvt(result, &sat); \ |
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} |
| 397 |
|
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#define VARITHSAT_DO(name, op, optype, cvt, element) \
|
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void helper_v##name(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, \ |
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ppc_avr_t *b) \ |
| 401 |
{ \
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| 402 |
int sat = 0; \ |
| 403 |
int i; \
|
| 404 |
\ |
| 405 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 406 |
switch (sizeof(r->element[0])) { \ |
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case 1: \ |
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VARITHSAT_CASE(optype, op, cvt, element); \ |
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break; \
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case 2: \ |
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VARITHSAT_CASE(optype, op, cvt, element); \ |
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break; \
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case 4: \ |
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VARITHSAT_CASE(optype, op, cvt, element); \ |
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break; \
|
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} \ |
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} \ |
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if (sat) { \
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env->vscr |= (1 << VSCR_SAT); \
|
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} \ |
| 421 |
} |
| 422 |
#define VARITHSAT_SIGNED(suffix, element, optype, cvt) \
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| 423 |
VARITHSAT_DO(adds##suffix##s, +, optype, cvt, element) \ |
| 424 |
VARITHSAT_DO(subs##suffix##s, -, optype, cvt, element) |
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#define VARITHSAT_UNSIGNED(suffix, element, optype, cvt) \
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| 426 |
VARITHSAT_DO(addu##suffix##s, +, optype, cvt, element) \ |
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VARITHSAT_DO(subu##suffix##s, -, optype, cvt, element) |
| 428 |
VARITHSAT_SIGNED(b, s8, int16_t, cvtshsb) |
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VARITHSAT_SIGNED(h, s16, int32_t, cvtswsh) |
| 430 |
VARITHSAT_SIGNED(w, s32, int64_t, cvtsdsw) |
| 431 |
VARITHSAT_UNSIGNED(b, u8, uint16_t, cvtshub) |
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VARITHSAT_UNSIGNED(h, u16, uint32_t, cvtswuh) |
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VARITHSAT_UNSIGNED(w, u32, uint64_t, cvtsduw) |
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#undef VARITHSAT_CASE
|
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#undef VARITHSAT_DO
|
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#undef VARITHSAT_SIGNED
|
| 437 |
#undef VARITHSAT_UNSIGNED
|
| 438 |
|
| 439 |
#define VAVG_DO(name, element, etype) \
|
| 440 |
void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 441 |
{ \
|
| 442 |
int i; \
|
| 443 |
\ |
| 444 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 445 |
etype x = (etype)a->element[i] + (etype)b->element[i] + 1; \
|
| 446 |
r->element[i] = x >> 1; \
|
| 447 |
} \ |
| 448 |
} |
| 449 |
|
| 450 |
#define VAVG(type, signed_element, signed_type, unsigned_element, \
|
| 451 |
unsigned_type) \ |
| 452 |
VAVG_DO(avgs##type, signed_element, signed_type) \ |
| 453 |
VAVG_DO(avgu##type, unsigned_element, unsigned_type) |
| 454 |
VAVG(b, s8, int16_t, u8, uint16_t) |
| 455 |
VAVG(h, s16, int32_t, u16, uint32_t) |
| 456 |
VAVG(w, s32, int64_t, u32, uint64_t) |
| 457 |
#undef VAVG_DO
|
| 458 |
#undef VAVG
|
| 459 |
|
| 460 |
#define VCF(suffix, cvt, element) \
|
| 461 |
void helper_vcf##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| 462 |
ppc_avr_t *b, uint32_t uim) \ |
| 463 |
{ \
|
| 464 |
int i; \
|
| 465 |
\ |
| 466 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| 467 |
float32 t = cvt(b->element[i], &env->vec_status); \ |
| 468 |
r->f[i] = float32_scalbn(t, -uim, &env->vec_status); \ |
| 469 |
} \ |
| 470 |
} |
| 471 |
VCF(ux, uint32_to_float32, u32) |
| 472 |
VCF(sx, int32_to_float32, s32) |
| 473 |
#undef VCF
|
| 474 |
|
| 475 |
#define VCMP_DO(suffix, compare, element, record) \
|
| 476 |
void helper_vcmp##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| 477 |
ppc_avr_t *a, ppc_avr_t *b) \ |
| 478 |
{ \
|
| 479 |
uint32_t ones = (uint32_t)-1; \
|
| 480 |
uint32_t all = ones; \ |
| 481 |
uint32_t none = 0; \
|
| 482 |
int i; \
|
| 483 |
\ |
| 484 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 485 |
uint32_t result = (a->element[i] compare b->element[i] ? \ |
| 486 |
ones : 0x0); \
|
| 487 |
switch (sizeof(a->element[0])) { \ |
| 488 |
case 4: \ |
| 489 |
r->u32[i] = result; \ |
| 490 |
break; \
|
| 491 |
case 2: \ |
| 492 |
r->u16[i] = result; \ |
| 493 |
break; \
|
| 494 |
case 1: \ |
| 495 |
r->u8[i] = result; \ |
| 496 |
break; \
|
| 497 |
} \ |
| 498 |
all &= result; \ |
| 499 |
none |= result; \ |
| 500 |
} \ |
| 501 |
if (record) { \
|
| 502 |
env->crf[6] = ((all != 0) << 3) | ((none == 0) << 1); \ |
| 503 |
} \ |
| 504 |
} |
| 505 |
#define VCMP(suffix, compare, element) \
|
| 506 |
VCMP_DO(suffix, compare, element, 0) \
|
| 507 |
VCMP_DO(suffix##_dot, compare, element, 1) |
| 508 |
VCMP(equb, ==, u8) |
| 509 |
VCMP(equh, ==, u16) |
| 510 |
VCMP(equw, ==, u32) |
| 511 |
VCMP(gtub, >, u8) |
| 512 |
VCMP(gtuh, >, u16) |
| 513 |
VCMP(gtuw, >, u32) |
| 514 |
VCMP(gtsb, >, s8) |
| 515 |
VCMP(gtsh, >, s16) |
| 516 |
VCMP(gtsw, >, s32) |
| 517 |
#undef VCMP_DO
|
| 518 |
#undef VCMP
|
| 519 |
|
| 520 |
#define VCMPFP_DO(suffix, compare, order, record) \
|
| 521 |
void helper_vcmp##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| 522 |
ppc_avr_t *a, ppc_avr_t *b) \ |
| 523 |
{ \
|
| 524 |
uint32_t ones = (uint32_t)-1; \
|
| 525 |
uint32_t all = ones; \ |
| 526 |
uint32_t none = 0; \
|
| 527 |
int i; \
|
| 528 |
\ |
| 529 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| 530 |
uint32_t result; \ |
| 531 |
int rel = float32_compare_quiet(a->f[i], b->f[i], \
|
| 532 |
&env->vec_status); \ |
| 533 |
if (rel == float_relation_unordered) { \
|
| 534 |
result = 0; \
|
| 535 |
} else if (rel compare order) { \ |
| 536 |
result = ones; \ |
| 537 |
} else { \
|
| 538 |
result = 0; \
|
| 539 |
} \ |
| 540 |
r->u32[i] = result; \ |
| 541 |
all &= result; \ |
| 542 |
none |= result; \ |
| 543 |
} \ |
| 544 |
if (record) { \
|
| 545 |
env->crf[6] = ((all != 0) << 3) | ((none == 0) << 1); \ |
| 546 |
} \ |
| 547 |
} |
| 548 |
#define VCMPFP(suffix, compare, order) \
|
| 549 |
VCMPFP_DO(suffix, compare, order, 0) \
|
| 550 |
VCMPFP_DO(suffix##_dot, compare, order, 1) |
| 551 |
VCMPFP(eqfp, ==, float_relation_equal) |
| 552 |
VCMPFP(gefp, !=, float_relation_less) |
| 553 |
VCMPFP(gtfp, ==, float_relation_greater) |
| 554 |
#undef VCMPFP_DO
|
| 555 |
#undef VCMPFP
|
| 556 |
|
| 557 |
static inline void vcmpbfp_internal(CPUPPCState *env, ppc_avr_t *r, |
| 558 |
ppc_avr_t *a, ppc_avr_t *b, int record)
|
| 559 |
{
|
| 560 |
int i;
|
| 561 |
int all_in = 0; |
| 562 |
|
| 563 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| 564 |
int le_rel = float32_compare_quiet(a->f[i], b->f[i], &env->vec_status);
|
| 565 |
if (le_rel == float_relation_unordered) {
|
| 566 |
r->u32[i] = 0xc0000000;
|
| 567 |
/* ALL_IN does not need to be updated here. */
|
| 568 |
} else {
|
| 569 |
float32 bneg = float32_chs(b->f[i]); |
| 570 |
int ge_rel = float32_compare_quiet(a->f[i], bneg, &env->vec_status);
|
| 571 |
int le = le_rel != float_relation_greater;
|
| 572 |
int ge = ge_rel != float_relation_less;
|
| 573 |
|
| 574 |
r->u32[i] = ((!le) << 31) | ((!ge) << 30); |
| 575 |
all_in |= (!le | !ge); |
| 576 |
} |
| 577 |
} |
| 578 |
if (record) {
|
| 579 |
env->crf[6] = (all_in == 0) << 1; |
| 580 |
} |
| 581 |
} |
| 582 |
|
| 583 |
void helper_vcmpbfp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
| 584 |
{
|
| 585 |
vcmpbfp_internal(env, r, a, b, 0);
|
| 586 |
} |
| 587 |
|
| 588 |
void helper_vcmpbfp_dot(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
| 589 |
ppc_avr_t *b) |
| 590 |
{
|
| 591 |
vcmpbfp_internal(env, r, a, b, 1);
|
| 592 |
} |
| 593 |
|
| 594 |
#define VCT(suffix, satcvt, element) \
|
| 595 |
void helper_vct##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| 596 |
ppc_avr_t *b, uint32_t uim) \ |
| 597 |
{ \
|
| 598 |
int i; \
|
| 599 |
int sat = 0; \ |
| 600 |
float_status s = env->vec_status; \ |
| 601 |
\ |
| 602 |
set_float_rounding_mode(float_round_to_zero, &s); \ |
| 603 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| 604 |
if (float32_is_any_nan(b->f[i])) { \
|
| 605 |
r->element[i] = 0; \
|
| 606 |
} else { \
|
| 607 |
float64 t = float32_to_float64(b->f[i], &s); \ |
| 608 |
int64_t j; \ |
| 609 |
\ |
| 610 |
t = float64_scalbn(t, uim, &s); \ |
| 611 |
j = float64_to_int64(t, &s); \ |
| 612 |
r->element[i] = satcvt(j, &sat); \ |
| 613 |
} \ |
| 614 |
} \ |
| 615 |
if (sat) { \
|
| 616 |
env->vscr |= (1 << VSCR_SAT); \
|
| 617 |
} \ |
| 618 |
} |
| 619 |
VCT(uxs, cvtsduw, u32) |
| 620 |
VCT(sxs, cvtsdsw, s32) |
| 621 |
#undef VCT
|
| 622 |
|
| 623 |
void helper_vmhaddshs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
| 624 |
ppc_avr_t *b, ppc_avr_t *c) |
| 625 |
{
|
| 626 |
int sat = 0; |
| 627 |
int i;
|
| 628 |
|
| 629 |
for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| 630 |
int32_t prod = a->s16[i] * b->s16[i]; |
| 631 |
int32_t t = (int32_t)c->s16[i] + (prod >> 15);
|
| 632 |
|
| 633 |
r->s16[i] = cvtswsh(t, &sat); |
| 634 |
} |
| 635 |
|
| 636 |
if (sat) {
|
| 637 |
env->vscr |= (1 << VSCR_SAT);
|
| 638 |
} |
| 639 |
} |
| 640 |
|
| 641 |
void helper_vmhraddshs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
| 642 |
ppc_avr_t *b, ppc_avr_t *c) |
| 643 |
{
|
| 644 |
int sat = 0; |
| 645 |
int i;
|
| 646 |
|
| 647 |
for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| 648 |
int32_t prod = a->s16[i] * b->s16[i] + 0x00004000;
|
| 649 |
int32_t t = (int32_t)c->s16[i] + (prod >> 15);
|
| 650 |
r->s16[i] = cvtswsh(t, &sat); |
| 651 |
} |
| 652 |
|
| 653 |
if (sat) {
|
| 654 |
env->vscr |= (1 << VSCR_SAT);
|
| 655 |
} |
| 656 |
} |
| 657 |
|
| 658 |
#define VMINMAX_DO(name, compare, element) \
|
| 659 |
void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 660 |
{ \
|
| 661 |
int i; \
|
| 662 |
\ |
| 663 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 664 |
if (a->element[i] compare b->element[i]) { \
|
| 665 |
r->element[i] = b->element[i]; \ |
| 666 |
} else { \
|
| 667 |
r->element[i] = a->element[i]; \ |
| 668 |
} \ |
| 669 |
} \ |
| 670 |
} |
| 671 |
#define VMINMAX(suffix, element) \
|
| 672 |
VMINMAX_DO(min##suffix, >, element) \ |
| 673 |
VMINMAX_DO(max##suffix, <, element) |
| 674 |
VMINMAX(sb, s8) |
| 675 |
VMINMAX(sh, s16) |
| 676 |
VMINMAX(sw, s32) |
| 677 |
VMINMAX(ub, u8) |
| 678 |
VMINMAX(uh, u16) |
| 679 |
VMINMAX(uw, u32) |
| 680 |
#undef VMINMAX_DO
|
| 681 |
#undef VMINMAX
|
| 682 |
|
| 683 |
void helper_vmladduhm(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
|
| 684 |
{
|
| 685 |
int i;
|
| 686 |
|
| 687 |
for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| 688 |
int32_t prod = a->s16[i] * b->s16[i]; |
| 689 |
r->s16[i] = (int16_t) (prod + c->s16[i]); |
| 690 |
} |
| 691 |
} |
| 692 |
|
| 693 |
#define VMRG_DO(name, element, highp) \
|
| 694 |
void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 695 |
{ \
|
| 696 |
ppc_avr_t result; \ |
| 697 |
int i; \
|
| 698 |
size_t n_elems = ARRAY_SIZE(r->element); \ |
| 699 |
\ |
| 700 |
for (i = 0; i < n_elems / 2; i++) { \ |
| 701 |
if (highp) { \
|
| 702 |
result.element[i*2+HI_IDX] = a->element[i]; \
|
| 703 |
result.element[i*2+LO_IDX] = b->element[i]; \
|
| 704 |
} else { \
|
| 705 |
result.element[n_elems - i * 2 - (1 + HI_IDX)] = \ |
| 706 |
b->element[n_elems - i - 1]; \
|
| 707 |
result.element[n_elems - i * 2 - (1 + LO_IDX)] = \ |
| 708 |
a->element[n_elems - i - 1]; \
|
| 709 |
} \ |
| 710 |
} \ |
| 711 |
*r = result; \ |
| 712 |
} |
| 713 |
#if defined(HOST_WORDS_BIGENDIAN)
|
| 714 |
#define MRGHI 0 |
| 715 |
#define MRGLO 1 |
| 716 |
#else
|
| 717 |
#define MRGHI 1 |
| 718 |
#define MRGLO 0 |
| 719 |
#endif
|
| 720 |
#define VMRG(suffix, element) \
|
| 721 |
VMRG_DO(mrgl##suffix, element, MRGHI) \ |
| 722 |
VMRG_DO(mrgh##suffix, element, MRGLO) |
| 723 |
VMRG(b, u8) |
| 724 |
VMRG(h, u16) |
| 725 |
VMRG(w, u32) |
| 726 |
#undef VMRG_DO
|
| 727 |
#undef VMRG
|
| 728 |
#undef MRGHI
|
| 729 |
#undef MRGLO
|
| 730 |
|
| 731 |
void helper_vmsummbm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
| 732 |
ppc_avr_t *b, ppc_avr_t *c) |
| 733 |
{
|
| 734 |
int32_t prod[16];
|
| 735 |
int i;
|
| 736 |
|
| 737 |
for (i = 0; i < ARRAY_SIZE(r->s8); i++) { |
| 738 |
prod[i] = (int32_t)a->s8[i] * b->u8[i]; |
| 739 |
} |
| 740 |
|
| 741 |
VECTOR_FOR_INORDER_I(i, s32) {
|
| 742 |
r->s32[i] = c->s32[i] + prod[4 * i] + prod[4 * i + 1] + |
| 743 |
prod[4 * i + 2] + prod[4 * i + 3]; |
| 744 |
} |
| 745 |
} |
| 746 |
|
| 747 |
void helper_vmsumshm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
| 748 |
ppc_avr_t *b, ppc_avr_t *c) |
| 749 |
{
|
| 750 |
int32_t prod[8];
|
| 751 |
int i;
|
| 752 |
|
| 753 |
for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| 754 |
prod[i] = a->s16[i] * b->s16[i]; |
| 755 |
} |
| 756 |
|
| 757 |
VECTOR_FOR_INORDER_I(i, s32) {
|
| 758 |
r->s32[i] = c->s32[i] + prod[2 * i] + prod[2 * i + 1]; |
| 759 |
} |
| 760 |
} |
| 761 |
|
| 762 |
void helper_vmsumshs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
| 763 |
ppc_avr_t *b, ppc_avr_t *c) |
| 764 |
{
|
| 765 |
int32_t prod[8];
|
| 766 |
int i;
|
| 767 |
int sat = 0; |
| 768 |
|
| 769 |
for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| 770 |
prod[i] = (int32_t)a->s16[i] * b->s16[i]; |
| 771 |
} |
| 772 |
|
| 773 |
VECTOR_FOR_INORDER_I(i, s32) {
|
| 774 |
int64_t t = (int64_t)c->s32[i] + prod[2 * i] + prod[2 * i + 1]; |
| 775 |
|
| 776 |
r->u32[i] = cvtsdsw(t, &sat); |
| 777 |
} |
| 778 |
|
| 779 |
if (sat) {
|
| 780 |
env->vscr |= (1 << VSCR_SAT);
|
| 781 |
} |
| 782 |
} |
| 783 |
|
| 784 |
void helper_vmsumubm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
| 785 |
ppc_avr_t *b, ppc_avr_t *c) |
| 786 |
{
|
| 787 |
uint16_t prod[16];
|
| 788 |
int i;
|
| 789 |
|
| 790 |
for (i = 0; i < ARRAY_SIZE(r->u8); i++) { |
| 791 |
prod[i] = a->u8[i] * b->u8[i]; |
| 792 |
} |
| 793 |
|
| 794 |
VECTOR_FOR_INORDER_I(i, u32) {
|
| 795 |
r->u32[i] = c->u32[i] + prod[4 * i] + prod[4 * i + 1] + |
| 796 |
prod[4 * i + 2] + prod[4 * i + 3]; |
| 797 |
} |
| 798 |
} |
| 799 |
|
| 800 |
void helper_vmsumuhm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
| 801 |
ppc_avr_t *b, ppc_avr_t *c) |
| 802 |
{
|
| 803 |
uint32_t prod[8];
|
| 804 |
int i;
|
| 805 |
|
| 806 |
for (i = 0; i < ARRAY_SIZE(r->u16); i++) { |
| 807 |
prod[i] = a->u16[i] * b->u16[i]; |
| 808 |
} |
| 809 |
|
| 810 |
VECTOR_FOR_INORDER_I(i, u32) {
|
| 811 |
r->u32[i] = c->u32[i] + prod[2 * i] + prod[2 * i + 1]; |
| 812 |
} |
| 813 |
} |
| 814 |
|
| 815 |
void helper_vmsumuhs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
| 816 |
ppc_avr_t *b, ppc_avr_t *c) |
| 817 |
{
|
| 818 |
uint32_t prod[8];
|
| 819 |
int i;
|
| 820 |
int sat = 0; |
| 821 |
|
| 822 |
for (i = 0; i < ARRAY_SIZE(r->u16); i++) { |
| 823 |
prod[i] = a->u16[i] * b->u16[i]; |
| 824 |
} |
| 825 |
|
| 826 |
VECTOR_FOR_INORDER_I(i, s32) {
|
| 827 |
uint64_t t = (uint64_t)c->u32[i] + prod[2 * i] + prod[2 * i + 1]; |
| 828 |
|
| 829 |
r->u32[i] = cvtuduw(t, &sat); |
| 830 |
} |
| 831 |
|
| 832 |
if (sat) {
|
| 833 |
env->vscr |= (1 << VSCR_SAT);
|
| 834 |
} |
| 835 |
} |
| 836 |
|
| 837 |
#define VMUL_DO(name, mul_element, prod_element, evenp) \
|
| 838 |
void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 839 |
{ \
|
| 840 |
int i; \
|
| 841 |
\ |
| 842 |
VECTOR_FOR_INORDER_I(i, prod_element) { \
|
| 843 |
if (evenp) { \
|
| 844 |
r->prod_element[i] = a->mul_element[i * 2 + HI_IDX] * \
|
| 845 |
b->mul_element[i * 2 + HI_IDX]; \
|
| 846 |
} else { \
|
| 847 |
r->prod_element[i] = a->mul_element[i * 2 + LO_IDX] * \
|
| 848 |
b->mul_element[i * 2 + LO_IDX]; \
|
| 849 |
} \ |
| 850 |
} \ |
| 851 |
} |
| 852 |
#define VMUL(suffix, mul_element, prod_element) \
|
| 853 |
VMUL_DO(mule##suffix, mul_element, prod_element, 1) \ |
| 854 |
VMUL_DO(mulo##suffix, mul_element, prod_element, 0) |
| 855 |
VMUL(sb, s8, s16) |
| 856 |
VMUL(sh, s16, s32) |
| 857 |
VMUL(ub, u8, u16) |
| 858 |
VMUL(uh, u16, u32) |
| 859 |
#undef VMUL_DO
|
| 860 |
#undef VMUL
|
| 861 |
|
| 862 |
void helper_vperm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b,
|
| 863 |
ppc_avr_t *c) |
| 864 |
{
|
| 865 |
ppc_avr_t result; |
| 866 |
int i;
|
| 867 |
|
| 868 |
VECTOR_FOR_INORDER_I(i, u8) {
|
| 869 |
int s = c->u8[i] & 0x1f; |
| 870 |
#if defined(HOST_WORDS_BIGENDIAN)
|
| 871 |
int index = s & 0xf; |
| 872 |
#else
|
| 873 |
int index = 15 - (s & 0xf); |
| 874 |
#endif
|
| 875 |
|
| 876 |
if (s & 0x10) { |
| 877 |
result.u8[i] = b->u8[index]; |
| 878 |
} else {
|
| 879 |
result.u8[i] = a->u8[index]; |
| 880 |
} |
| 881 |
} |
| 882 |
*r = result; |
| 883 |
} |
| 884 |
|
| 885 |
#if defined(HOST_WORDS_BIGENDIAN)
|
| 886 |
#define PKBIG 1 |
| 887 |
#else
|
| 888 |
#define PKBIG 0 |
| 889 |
#endif
|
| 890 |
void helper_vpkpx(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
| 891 |
{
|
| 892 |
int i, j;
|
| 893 |
ppc_avr_t result; |
| 894 |
#if defined(HOST_WORDS_BIGENDIAN)
|
| 895 |
const ppc_avr_t *x[2] = { a, b }; |
| 896 |
#else
|
| 897 |
const ppc_avr_t *x[2] = { b, a }; |
| 898 |
#endif
|
| 899 |
|
| 900 |
VECTOR_FOR_INORDER_I(i, u64) {
|
| 901 |
VECTOR_FOR_INORDER_I(j, u32) {
|
| 902 |
uint32_t e = x[i]->u32[j]; |
| 903 |
|
| 904 |
result.u16[4*i+j] = (((e >> 9) & 0xfc00) | |
| 905 |
((e >> 6) & 0x3e0) | |
| 906 |
((e >> 3) & 0x1f)); |
| 907 |
} |
| 908 |
} |
| 909 |
*r = result; |
| 910 |
} |
| 911 |
|
| 912 |
#define VPK(suffix, from, to, cvt, dosat) \
|
| 913 |
void helper_vpk##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| 914 |
ppc_avr_t *a, ppc_avr_t *b) \ |
| 915 |
{ \
|
| 916 |
int i; \
|
| 917 |
int sat = 0; \ |
| 918 |
ppc_avr_t result; \ |
| 919 |
ppc_avr_t *a0 = PKBIG ? a : b; \ |
| 920 |
ppc_avr_t *a1 = PKBIG ? b : a; \ |
| 921 |
\ |
| 922 |
VECTOR_FOR_INORDER_I(i, from) { \
|
| 923 |
result.to[i] = cvt(a0->from[i], &sat); \ |
| 924 |
result.to[i+ARRAY_SIZE(r->from)] = cvt(a1->from[i], &sat); \ |
| 925 |
} \ |
| 926 |
*r = result; \ |
| 927 |
if (dosat && sat) { \
|
| 928 |
env->vscr |= (1 << VSCR_SAT); \
|
| 929 |
} \ |
| 930 |
} |
| 931 |
#define I(x, y) (x)
|
| 932 |
VPK(shss, s16, s8, cvtshsb, 1)
|
| 933 |
VPK(shus, s16, u8, cvtshub, 1)
|
| 934 |
VPK(swss, s32, s16, cvtswsh, 1)
|
| 935 |
VPK(swus, s32, u16, cvtswuh, 1)
|
| 936 |
VPK(uhus, u16, u8, cvtuhub, 1)
|
| 937 |
VPK(uwus, u32, u16, cvtuwuh, 1)
|
| 938 |
VPK(uhum, u16, u8, I, 0)
|
| 939 |
VPK(uwum, u32, u16, I, 0)
|
| 940 |
#undef I
|
| 941 |
#undef VPK
|
| 942 |
#undef PKBIG
|
| 943 |
|
| 944 |
void helper_vrefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
|
| 945 |
{
|
| 946 |
int i;
|
| 947 |
|
| 948 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| 949 |
r->f[i] = float32_div(float32_one, b->f[i], &env->vec_status); |
| 950 |
} |
| 951 |
} |
| 952 |
|
| 953 |
#define VRFI(suffix, rounding) \
|
| 954 |
void helper_vrfi##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| 955 |
ppc_avr_t *b) \ |
| 956 |
{ \
|
| 957 |
int i; \
|
| 958 |
float_status s = env->vec_status; \ |
| 959 |
\ |
| 960 |
set_float_rounding_mode(rounding, &s); \ |
| 961 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| 962 |
r->f[i] = float32_round_to_int (b->f[i], &s); \ |
| 963 |
} \ |
| 964 |
} |
| 965 |
VRFI(n, float_round_nearest_even) |
| 966 |
VRFI(m, float_round_down) |
| 967 |
VRFI(p, float_round_up) |
| 968 |
VRFI(z, float_round_to_zero) |
| 969 |
#undef VRFI
|
| 970 |
|
| 971 |
#define VROTATE(suffix, element) \
|
| 972 |
void helper_vrl##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 973 |
{ \
|
| 974 |
int i; \
|
| 975 |
\ |
| 976 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 977 |
unsigned int mask = ((1 << \ |
| 978 |
(3 + (sizeof(a->element[0]) >> 1))) \ |
| 979 |
- 1); \
|
| 980 |
unsigned int shift = b->element[i] & mask; \ |
| 981 |
r->element[i] = (a->element[i] << shift) | \ |
| 982 |
(a->element[i] >> (sizeof(a->element[0]) * 8 - shift)); \ |
| 983 |
} \ |
| 984 |
} |
| 985 |
VROTATE(b, u8) |
| 986 |
VROTATE(h, u16) |
| 987 |
VROTATE(w, u32) |
| 988 |
#undef VROTATE
|
| 989 |
|
| 990 |
void helper_vrsqrtefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
|
| 991 |
{
|
| 992 |
int i;
|
| 993 |
|
| 994 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| 995 |
float32 t = float32_sqrt(b->f[i], &env->vec_status); |
| 996 |
|
| 997 |
r->f[i] = float32_div(float32_one, t, &env->vec_status); |
| 998 |
} |
| 999 |
} |
| 1000 |
|
| 1001 |
void helper_vsel(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b,
|
| 1002 |
ppc_avr_t *c) |
| 1003 |
{
|
| 1004 |
r->u64[0] = (a->u64[0] & ~c->u64[0]) | (b->u64[0] & c->u64[0]); |
| 1005 |
r->u64[1] = (a->u64[1] & ~c->u64[1]) | (b->u64[1] & c->u64[1]); |
| 1006 |
} |
| 1007 |
|
| 1008 |
void helper_vexptefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
|
| 1009 |
{
|
| 1010 |
int i;
|
| 1011 |
|
| 1012 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| 1013 |
r->f[i] = float32_exp2(b->f[i], &env->vec_status); |
| 1014 |
} |
| 1015 |
} |
| 1016 |
|
| 1017 |
void helper_vlogefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
|
| 1018 |
{
|
| 1019 |
int i;
|
| 1020 |
|
| 1021 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| 1022 |
r->f[i] = float32_log2(b->f[i], &env->vec_status); |
| 1023 |
} |
| 1024 |
} |
| 1025 |
|
| 1026 |
#if defined(HOST_WORDS_BIGENDIAN)
|
| 1027 |
#define LEFT 0 |
| 1028 |
#define RIGHT 1 |
| 1029 |
#else
|
| 1030 |
#define LEFT 1 |
| 1031 |
#define RIGHT 0 |
| 1032 |
#endif
|
| 1033 |
/* The specification says that the results are undefined if all of the
|
| 1034 |
* shift counts are not identical. We check to make sure that they are
|
| 1035 |
* to conform to what real hardware appears to do. */
|
| 1036 |
#define VSHIFT(suffix, leftp) \
|
| 1037 |
void helper_vs##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 1038 |
{ \
|
| 1039 |
int shift = b->u8[LO_IDX*15] & 0x7; \ |
| 1040 |
int doit = 1; \ |
| 1041 |
int i; \
|
| 1042 |
\ |
| 1043 |
for (i = 0; i < ARRAY_SIZE(r->u8); i++) { \ |
| 1044 |
doit = doit && ((b->u8[i] & 0x7) == shift); \
|
| 1045 |
} \ |
| 1046 |
if (doit) { \
|
| 1047 |
if (shift == 0) { \ |
| 1048 |
*r = *a; \ |
| 1049 |
} else if (leftp) { \ |
| 1050 |
uint64_t carry = a->u64[LO_IDX] >> (64 - shift); \
|
| 1051 |
\ |
| 1052 |
r->u64[HI_IDX] = (a->u64[HI_IDX] << shift) | carry; \ |
| 1053 |
r->u64[LO_IDX] = a->u64[LO_IDX] << shift; \ |
| 1054 |
} else { \
|
| 1055 |
uint64_t carry = a->u64[HI_IDX] << (64 - shift); \
|
| 1056 |
\ |
| 1057 |
r->u64[LO_IDX] = (a->u64[LO_IDX] >> shift) | carry; \ |
| 1058 |
r->u64[HI_IDX] = a->u64[HI_IDX] >> shift; \ |
| 1059 |
} \ |
| 1060 |
} \ |
| 1061 |
} |
| 1062 |
VSHIFT(l, LEFT) |
| 1063 |
VSHIFT(r, RIGHT) |
| 1064 |
#undef VSHIFT
|
| 1065 |
#undef LEFT
|
| 1066 |
#undef RIGHT
|
| 1067 |
|
| 1068 |
#define VSL(suffix, element) \
|
| 1069 |
void helper_vsl##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 1070 |
{ \
|
| 1071 |
int i; \
|
| 1072 |
\ |
| 1073 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 1074 |
unsigned int mask = ((1 << \ |
| 1075 |
(3 + (sizeof(a->element[0]) >> 1))) \ |
| 1076 |
- 1); \
|
| 1077 |
unsigned int shift = b->element[i] & mask; \ |
| 1078 |
\ |
| 1079 |
r->element[i] = a->element[i] << shift; \ |
| 1080 |
} \ |
| 1081 |
} |
| 1082 |
VSL(b, u8) |
| 1083 |
VSL(h, u16) |
| 1084 |
VSL(w, u32) |
| 1085 |
#undef VSL
|
| 1086 |
|
| 1087 |
void helper_vsldoi(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t shift)
|
| 1088 |
{
|
| 1089 |
int sh = shift & 0xf; |
| 1090 |
int i;
|
| 1091 |
ppc_avr_t result; |
| 1092 |
|
| 1093 |
#if defined(HOST_WORDS_BIGENDIAN)
|
| 1094 |
for (i = 0; i < ARRAY_SIZE(r->u8); i++) { |
| 1095 |
int index = sh + i;
|
| 1096 |
if (index > 0xf) { |
| 1097 |
result.u8[i] = b->u8[index - 0x10];
|
| 1098 |
} else {
|
| 1099 |
result.u8[i] = a->u8[index]; |
| 1100 |
} |
| 1101 |
} |
| 1102 |
#else
|
| 1103 |
for (i = 0; i < ARRAY_SIZE(r->u8); i++) { |
| 1104 |
int index = (16 - sh) + i; |
| 1105 |
if (index > 0xf) { |
| 1106 |
result.u8[i] = a->u8[index - 0x10];
|
| 1107 |
} else {
|
| 1108 |
result.u8[i] = b->u8[index]; |
| 1109 |
} |
| 1110 |
} |
| 1111 |
#endif
|
| 1112 |
*r = result; |
| 1113 |
} |
| 1114 |
|
| 1115 |
void helper_vslo(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
| 1116 |
{
|
| 1117 |
int sh = (b->u8[LO_IDX*0xf] >> 3) & 0xf; |
| 1118 |
|
| 1119 |
#if defined(HOST_WORDS_BIGENDIAN)
|
| 1120 |
memmove(&r->u8[0], &a->u8[sh], 16 - sh); |
| 1121 |
memset(&r->u8[16-sh], 0, sh); |
| 1122 |
#else
|
| 1123 |
memmove(&r->u8[sh], &a->u8[0], 16 - sh); |
| 1124 |
memset(&r->u8[0], 0, sh); |
| 1125 |
#endif
|
| 1126 |
} |
| 1127 |
|
| 1128 |
/* Experimental testing shows that hardware masks the immediate. */
|
| 1129 |
#define _SPLAT_MASKED(element) (splat & (ARRAY_SIZE(r->element) - 1)) |
| 1130 |
#if defined(HOST_WORDS_BIGENDIAN)
|
| 1131 |
#define SPLAT_ELEMENT(element) _SPLAT_MASKED(element)
|
| 1132 |
#else
|
| 1133 |
#define SPLAT_ELEMENT(element) \
|
| 1134 |
(ARRAY_SIZE(r->element) - 1 - _SPLAT_MASKED(element))
|
| 1135 |
#endif
|
| 1136 |
#define VSPLT(suffix, element) \
|
| 1137 |
void helper_vsplt##suffix(ppc_avr_t *r, ppc_avr_t *b, uint32_t splat) \ |
| 1138 |
{ \
|
| 1139 |
uint32_t s = b->element[SPLAT_ELEMENT(element)]; \ |
| 1140 |
int i; \
|
| 1141 |
\ |
| 1142 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 1143 |
r->element[i] = s; \ |
| 1144 |
} \ |
| 1145 |
} |
| 1146 |
VSPLT(b, u8) |
| 1147 |
VSPLT(h, u16) |
| 1148 |
VSPLT(w, u32) |
| 1149 |
#undef VSPLT
|
| 1150 |
#undef SPLAT_ELEMENT
|
| 1151 |
#undef _SPLAT_MASKED
|
| 1152 |
|
| 1153 |
#define VSPLTI(suffix, element, splat_type) \
|
| 1154 |
void helper_vspltis##suffix(ppc_avr_t *r, uint32_t splat) \ |
| 1155 |
{ \
|
| 1156 |
splat_type x = (int8_t)(splat << 3) >> 3; \ |
| 1157 |
int i; \
|
| 1158 |
\ |
| 1159 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 1160 |
r->element[i] = x; \ |
| 1161 |
} \ |
| 1162 |
} |
| 1163 |
VSPLTI(b, s8, int8_t) |
| 1164 |
VSPLTI(h, s16, int16_t) |
| 1165 |
VSPLTI(w, s32, int32_t) |
| 1166 |
#undef VSPLTI
|
| 1167 |
|
| 1168 |
#define VSR(suffix, element) \
|
| 1169 |
void helper_vsr##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 1170 |
{ \
|
| 1171 |
int i; \
|
| 1172 |
\ |
| 1173 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 1174 |
unsigned int mask = ((1 << \ |
| 1175 |
(3 + (sizeof(a->element[0]) >> 1))) \ |
| 1176 |
- 1); \
|
| 1177 |
unsigned int shift = b->element[i] & mask; \ |
| 1178 |
\ |
| 1179 |
r->element[i] = a->element[i] >> shift; \ |
| 1180 |
} \ |
| 1181 |
} |
| 1182 |
VSR(ab, s8) |
| 1183 |
VSR(ah, s16) |
| 1184 |
VSR(aw, s32) |
| 1185 |
VSR(b, u8) |
| 1186 |
VSR(h, u16) |
| 1187 |
VSR(w, u32) |
| 1188 |
#undef VSR
|
| 1189 |
|
| 1190 |
void helper_vsro(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
| 1191 |
{
|
| 1192 |
int sh = (b->u8[LO_IDX * 0xf] >> 3) & 0xf; |
| 1193 |
|
| 1194 |
#if defined(HOST_WORDS_BIGENDIAN)
|
| 1195 |
memmove(&r->u8[sh], &a->u8[0], 16 - sh); |
| 1196 |
memset(&r->u8[0], 0, sh); |
| 1197 |
#else
|
| 1198 |
memmove(&r->u8[0], &a->u8[sh], 16 - sh); |
| 1199 |
memset(&r->u8[16 - sh], 0, sh); |
| 1200 |
#endif
|
| 1201 |
} |
| 1202 |
|
| 1203 |
void helper_vsubcuw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
| 1204 |
{
|
| 1205 |
int i;
|
| 1206 |
|
| 1207 |
for (i = 0; i < ARRAY_SIZE(r->u32); i++) { |
| 1208 |
r->u32[i] = a->u32[i] >= b->u32[i]; |
| 1209 |
} |
| 1210 |
} |
| 1211 |
|
| 1212 |
void helper_vsumsws(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
| 1213 |
{
|
| 1214 |
int64_t t; |
| 1215 |
int i, upper;
|
| 1216 |
ppc_avr_t result; |
| 1217 |
int sat = 0; |
| 1218 |
|
| 1219 |
#if defined(HOST_WORDS_BIGENDIAN)
|
| 1220 |
upper = ARRAY_SIZE(r->s32)-1;
|
| 1221 |
#else
|
| 1222 |
upper = 0;
|
| 1223 |
#endif
|
| 1224 |
t = (int64_t)b->s32[upper]; |
| 1225 |
for (i = 0; i < ARRAY_SIZE(r->s32); i++) { |
| 1226 |
t += a->s32[i]; |
| 1227 |
result.s32[i] = 0;
|
| 1228 |
} |
| 1229 |
result.s32[upper] = cvtsdsw(t, &sat); |
| 1230 |
*r = result; |
| 1231 |
|
| 1232 |
if (sat) {
|
| 1233 |
env->vscr |= (1 << VSCR_SAT);
|
| 1234 |
} |
| 1235 |
} |
| 1236 |
|
| 1237 |
void helper_vsum2sws(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
| 1238 |
{
|
| 1239 |
int i, j, upper;
|
| 1240 |
ppc_avr_t result; |
| 1241 |
int sat = 0; |
| 1242 |
|
| 1243 |
#if defined(HOST_WORDS_BIGENDIAN)
|
| 1244 |
upper = 1;
|
| 1245 |
#else
|
| 1246 |
upper = 0;
|
| 1247 |
#endif
|
| 1248 |
for (i = 0; i < ARRAY_SIZE(r->u64); i++) { |
| 1249 |
int64_t t = (int64_t)b->s32[upper + i * 2];
|
| 1250 |
|
| 1251 |
result.u64[i] = 0;
|
| 1252 |
for (j = 0; j < ARRAY_SIZE(r->u64); j++) { |
| 1253 |
t += a->s32[2 * i + j];
|
| 1254 |
} |
| 1255 |
result.s32[upper + i * 2] = cvtsdsw(t, &sat);
|
| 1256 |
} |
| 1257 |
|
| 1258 |
*r = result; |
| 1259 |
if (sat) {
|
| 1260 |
env->vscr |= (1 << VSCR_SAT);
|
| 1261 |
} |
| 1262 |
} |
| 1263 |
|
| 1264 |
void helper_vsum4sbs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
| 1265 |
{
|
| 1266 |
int i, j;
|
| 1267 |
int sat = 0; |
| 1268 |
|
| 1269 |
for (i = 0; i < ARRAY_SIZE(r->s32); i++) { |
| 1270 |
int64_t t = (int64_t)b->s32[i]; |
| 1271 |
|
| 1272 |
for (j = 0; j < ARRAY_SIZE(r->s32); j++) { |
| 1273 |
t += a->s8[4 * i + j];
|
| 1274 |
} |
| 1275 |
r->s32[i] = cvtsdsw(t, &sat); |
| 1276 |
} |
| 1277 |
|
| 1278 |
if (sat) {
|
| 1279 |
env->vscr |= (1 << VSCR_SAT);
|
| 1280 |
} |
| 1281 |
} |
| 1282 |
|
| 1283 |
void helper_vsum4shs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
| 1284 |
{
|
| 1285 |
int sat = 0; |
| 1286 |
int i;
|
| 1287 |
|
| 1288 |
for (i = 0; i < ARRAY_SIZE(r->s32); i++) { |
| 1289 |
int64_t t = (int64_t)b->s32[i]; |
| 1290 |
|
| 1291 |
t += a->s16[2 * i] + a->s16[2 * i + 1]; |
| 1292 |
r->s32[i] = cvtsdsw(t, &sat); |
| 1293 |
} |
| 1294 |
|
| 1295 |
if (sat) {
|
| 1296 |
env->vscr |= (1 << VSCR_SAT);
|
| 1297 |
} |
| 1298 |
} |
| 1299 |
|
| 1300 |
void helper_vsum4ubs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
| 1301 |
{
|
| 1302 |
int i, j;
|
| 1303 |
int sat = 0; |
| 1304 |
|
| 1305 |
for (i = 0; i < ARRAY_SIZE(r->u32); i++) { |
| 1306 |
uint64_t t = (uint64_t)b->u32[i]; |
| 1307 |
|
| 1308 |
for (j = 0; j < ARRAY_SIZE(r->u32); j++) { |
| 1309 |
t += a->u8[4 * i + j];
|
| 1310 |
} |
| 1311 |
r->u32[i] = cvtuduw(t, &sat); |
| 1312 |
} |
| 1313 |
|
| 1314 |
if (sat) {
|
| 1315 |
env->vscr |= (1 << VSCR_SAT);
|
| 1316 |
} |
| 1317 |
} |
| 1318 |
|
| 1319 |
#if defined(HOST_WORDS_BIGENDIAN)
|
| 1320 |
#define UPKHI 1 |
| 1321 |
#define UPKLO 0 |
| 1322 |
#else
|
| 1323 |
#define UPKHI 0 |
| 1324 |
#define UPKLO 1 |
| 1325 |
#endif
|
| 1326 |
#define VUPKPX(suffix, hi) \
|
| 1327 |
void helper_vupk##suffix(ppc_avr_t *r, ppc_avr_t *b) \ |
| 1328 |
{ \
|
| 1329 |
int i; \
|
| 1330 |
ppc_avr_t result; \ |
| 1331 |
\ |
| 1332 |
for (i = 0; i < ARRAY_SIZE(r->u32); i++) { \ |
| 1333 |
uint16_t e = b->u16[hi ? i : i+4]; \
|
| 1334 |
uint8_t a = (e >> 15) ? 0xff : 0; \ |
| 1335 |
uint8_t r = (e >> 10) & 0x1f; \ |
| 1336 |
uint8_t g = (e >> 5) & 0x1f; \ |
| 1337 |
uint8_t b = e & 0x1f; \
|
| 1338 |
\ |
| 1339 |
result.u32[i] = (a << 24) | (r << 16) | (g << 8) | b; \ |
| 1340 |
} \ |
| 1341 |
*r = result; \ |
| 1342 |
} |
| 1343 |
VUPKPX(lpx, UPKLO) |
| 1344 |
VUPKPX(hpx, UPKHI) |
| 1345 |
#undef VUPKPX
|
| 1346 |
|
| 1347 |
#define VUPK(suffix, unpacked, packee, hi) \
|
| 1348 |
void helper_vupk##suffix(ppc_avr_t *r, ppc_avr_t *b) \ |
| 1349 |
{ \
|
| 1350 |
int i; \
|
| 1351 |
ppc_avr_t result; \ |
| 1352 |
\ |
| 1353 |
if (hi) { \
|
| 1354 |
for (i = 0; i < ARRAY_SIZE(r->unpacked); i++) { \ |
| 1355 |
result.unpacked[i] = b->packee[i]; \ |
| 1356 |
} \ |
| 1357 |
} else { \
|
| 1358 |
for (i = ARRAY_SIZE(r->unpacked); i < ARRAY_SIZE(r->packee); \
|
| 1359 |
i++) { \
|
| 1360 |
result.unpacked[i - ARRAY_SIZE(r->unpacked)] = b->packee[i]; \ |
| 1361 |
} \ |
| 1362 |
} \ |
| 1363 |
*r = result; \ |
| 1364 |
} |
| 1365 |
VUPK(hsb, s16, s8, UPKHI) |
| 1366 |
VUPK(hsh, s32, s16, UPKHI) |
| 1367 |
VUPK(lsb, s16, s8, UPKLO) |
| 1368 |
VUPK(lsh, s32, s16, UPKLO) |
| 1369 |
#undef VUPK
|
| 1370 |
#undef UPKHI
|
| 1371 |
#undef UPKLO
|
| 1372 |
|
| 1373 |
#undef VECTOR_FOR_INORDER_I
|
| 1374 |
#undef HI_IDX
|
| 1375 |
#undef LO_IDX
|
| 1376 |
|
| 1377 |
/*****************************************************************************/
|
| 1378 |
/* SPE extension helpers */
|
| 1379 |
/* Use a table to make this quicker */
|
| 1380 |
static const uint8_t hbrev[16] = { |
| 1381 |
0x0, 0x8, 0x4, 0xC, 0x2, 0xA, 0x6, 0xE, |
| 1382 |
0x1, 0x9, 0x5, 0xD, 0x3, 0xB, 0x7, 0xF, |
| 1383 |
}; |
| 1384 |
|
| 1385 |
static inline uint8_t byte_reverse(uint8_t val) |
| 1386 |
{
|
| 1387 |
return hbrev[val >> 4] | (hbrev[val & 0xF] << 4); |
| 1388 |
} |
| 1389 |
|
| 1390 |
static inline uint32_t word_reverse(uint32_t val) |
| 1391 |
{
|
| 1392 |
return byte_reverse(val >> 24) | (byte_reverse(val >> 16) << 8) | |
| 1393 |
(byte_reverse(val >> 8) << 16) | (byte_reverse(val) << 24); |
| 1394 |
} |
| 1395 |
|
| 1396 |
#define MASKBITS 16 /* Random value - to be fixed (implementation dependent) */ |
| 1397 |
target_ulong helper_brinc(target_ulong arg1, target_ulong arg2) |
| 1398 |
{
|
| 1399 |
uint32_t a, b, d, mask; |
| 1400 |
|
| 1401 |
mask = UINT32_MAX >> (32 - MASKBITS);
|
| 1402 |
a = arg1 & mask; |
| 1403 |
b = arg2 & mask; |
| 1404 |
d = word_reverse(1 + word_reverse(a | ~b));
|
| 1405 |
return (arg1 & ~mask) | (d & b);
|
| 1406 |
} |
| 1407 |
|
| 1408 |
uint32_t helper_cntlsw32(uint32_t val) |
| 1409 |
{
|
| 1410 |
if (val & 0x80000000) { |
| 1411 |
return clz32(~val);
|
| 1412 |
} else {
|
| 1413 |
return clz32(val);
|
| 1414 |
} |
| 1415 |
} |
| 1416 |
|
| 1417 |
uint32_t helper_cntlzw32(uint32_t val) |
| 1418 |
{
|
| 1419 |
return clz32(val);
|
| 1420 |
} |
| 1421 |
|
| 1422 |
/* 440 specific */
|
| 1423 |
target_ulong helper_dlmzb(CPUPPCState *env, target_ulong high, |
| 1424 |
target_ulong low, uint32_t update_Rc) |
| 1425 |
{
|
| 1426 |
target_ulong mask; |
| 1427 |
int i;
|
| 1428 |
|
| 1429 |
i = 1;
|
| 1430 |
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
| 1431 |
if ((high & mask) == 0) { |
| 1432 |
if (update_Rc) {
|
| 1433 |
env->crf[0] = 0x4; |
| 1434 |
} |
| 1435 |
goto done;
|
| 1436 |
} |
| 1437 |
i++; |
| 1438 |
} |
| 1439 |
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
| 1440 |
if ((low & mask) == 0) { |
| 1441 |
if (update_Rc) {
|
| 1442 |
env->crf[0] = 0x8; |
| 1443 |
} |
| 1444 |
goto done;
|
| 1445 |
} |
| 1446 |
i++; |
| 1447 |
} |
| 1448 |
if (update_Rc) {
|
| 1449 |
env->crf[0] = 0x2; |
| 1450 |
} |
| 1451 |
done:
|
| 1452 |
env->xer = (env->xer & ~0x7F) | i;
|
| 1453 |
if (update_Rc) {
|
| 1454 |
env->crf[0] |= xer_so;
|
| 1455 |
} |
| 1456 |
return i;
|
| 1457 |
} |