root / target-ppc / int_helper.c @ ea6c0dac
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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 "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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/* multiply high word */
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uint64_t helper_mulhd(uint64_t arg1, uint64_t arg2) |
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{ |
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uint64_t tl, th; |
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muls64(&tl, &th, arg1, arg2); |
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return th;
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} |
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/* multiply high word unsigned */
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uint64_t helper_mulhdu(uint64_t arg1, uint64_t arg2) |
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{ |
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uint64_t tl, th; |
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mulu64(&tl, &th, arg1, arg2); |
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return th;
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} |
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uint64_t helper_mulldo(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->xer &= ~(1 << XER_OV);
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} else {
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env->xer |= (1 << XER_OV) | (1 << XER_SO); |
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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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#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->xer &= ~(1 << XER_CA);
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} else {
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env->xer |= (1 << XER_CA);
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} |
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} else {
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ret = (int32_t)value; |
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env->xer &= ~(1 << XER_CA);
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} |
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} else {
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ret = (int32_t)value >> 31;
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if (ret) {
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env->xer |= (1 << XER_CA);
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} else {
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env->xer &= ~(1 << XER_CA);
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} |
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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->xer &= ~(1 << XER_CA);
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} else {
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env->xer |= (1 << XER_CA);
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} |
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} else {
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ret = (int64_t)value; |
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env->xer &= ~(1 << XER_CA);
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} |
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} else {
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ret = (int64_t)value >> 63;
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if (ret) {
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env->xer |= (1 << XER_CA);
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} else {
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env->xer &= ~(1 << XER_CA);
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} |
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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->xer |= (1 << XER_OV) | (1 << XER_SO); |
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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->xer |= (1 << XER_OV) | (1 << XER_SO); |
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} else {
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env->xer &= ~(1 << XER_OV);
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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->xer |= (1 << XER_OV) | (1 << XER_SO); |
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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->xer &= ~(1 << XER_OV);
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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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/* If X is a NaN, store the corresponding QNaN into RESULT. Otherwise,
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* execute the following block. */
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#define DO_HANDLE_NAN(result, x) \
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if (float32_is_any_nan(x)) { \
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CPU_FloatU __f; \ |
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__f.f = x; \ |
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__f.l = __f.l | (1 << 22); /* Set QNaN bit. */ \ |
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result = __f.f; \ |
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} else
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#define HANDLE_NAN1(result, x) \
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DO_HANDLE_NAN(result, x) |
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#define HANDLE_NAN2(result, x, y) \
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DO_HANDLE_NAN(result, x) DO_HANDLE_NAN(result, y) |
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#define HANDLE_NAN3(result, x, y, z) \
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DO_HANDLE_NAN(result, x) DO_HANDLE_NAN(result, y) DO_HANDLE_NAN(result, z) |
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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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} |
377 |
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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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|
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for (i = 0; i < ARRAY_SIZE(r->u32); i++) { |
383 |
r->u32[i] = ~a->u32[i] < b->u32[i]; |
384 |
} |
385 |
} |
386 |
|
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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) \ |
389 |
{ \ |
390 |
int i; \
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\ |
392 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
393 |
r->element[i] = a->element[i] op b->element[i]; \ |
394 |
} \ |
395 |
} |
396 |
#define VARITH(suffix, element) \
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VARITH_DO(add##suffix, +, element) \ |
398 |
VARITH_DO(sub##suffix, -, element) |
399 |
VARITH(ubm, u8) |
400 |
VARITH(uhm, u16) |
401 |
VARITH(uwm, u32) |
402 |
#undef VARITH_DO
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#undef VARITH
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404 |
|
405 |
#define VARITHFP(suffix, func) \
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void helper_v##suffix(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, \ |
407 |
ppc_avr_t *b) \ |
408 |
{ \ |
409 |
int i; \
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410 |
\ |
411 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
412 |
HANDLE_NAN2(r->f[i], a->f[i], b->f[i]) { \ |
413 |
r->f[i] = func(a->f[i], b->f[i], &env->vec_status); \ |
414 |
} \ |
415 |
} \ |
416 |
} |
417 |
VARITHFP(addfp, float32_add) |
418 |
VARITHFP(subfp, float32_sub) |
419 |
#undef VARITHFP
|
420 |
|
421 |
#define VARITHSAT_CASE(type, op, cvt, element) \
|
422 |
{ \ |
423 |
type result = (type)a->element[i] op (type)b->element[i]; \ |
424 |
r->element[i] = cvt(result, &sat); \ |
425 |
} |
426 |
|
427 |
#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, \ |
429 |
ppc_avr_t *b) \ |
430 |
{ \ |
431 |
int sat = 0; \ |
432 |
int i; \
|
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\ |
434 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
435 |
switch (sizeof(r->element[0])) { \ |
436 |
case 1: \ |
437 |
VARITHSAT_CASE(optype, op, cvt, element); \ |
438 |
break; \
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case 2: \ |
440 |
VARITHSAT_CASE(optype, op, cvt, element); \ |
441 |
break; \
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case 4: \ |
443 |
VARITHSAT_CASE(optype, op, cvt, element); \ |
444 |
break; \
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} \ |
446 |
} \ |
447 |
if (sat) { \
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env->vscr |= (1 << VSCR_SAT); \
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} \ |
450 |
} |
451 |
#define VARITHSAT_SIGNED(suffix, element, optype, cvt) \
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452 |
VARITHSAT_DO(adds##suffix##s, +, optype, cvt, element) \ |
453 |
VARITHSAT_DO(subs##suffix##s, -, optype, cvt, element) |
454 |
#define VARITHSAT_UNSIGNED(suffix, element, optype, cvt) \
|
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VARITHSAT_DO(addu##suffix##s, +, optype, cvt, element) \ |
456 |
VARITHSAT_DO(subu##suffix##s, -, optype, cvt, element) |
457 |
VARITHSAT_SIGNED(b, s8, int16_t, cvtshsb) |
458 |
VARITHSAT_SIGNED(h, s16, int32_t, cvtswsh) |
459 |
VARITHSAT_SIGNED(w, s32, int64_t, cvtsdsw) |
460 |
VARITHSAT_UNSIGNED(b, u8, uint16_t, cvtshub) |
461 |
VARITHSAT_UNSIGNED(h, u16, uint32_t, cvtswuh) |
462 |
VARITHSAT_UNSIGNED(w, u32, uint64_t, cvtsduw) |
463 |
#undef VARITHSAT_CASE
|
464 |
#undef VARITHSAT_DO
|
465 |
#undef VARITHSAT_SIGNED
|
466 |
#undef VARITHSAT_UNSIGNED
|
467 |
|
468 |
#define VAVG_DO(name, element, etype) \
|
469 |
void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
470 |
{ \ |
471 |
int i; \
|
472 |
\ |
473 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
474 |
etype x = (etype)a->element[i] + (etype)b->element[i] + 1; \
|
475 |
r->element[i] = x >> 1; \
|
476 |
} \ |
477 |
} |
478 |
|
479 |
#define VAVG(type, signed_element, signed_type, unsigned_element, \
|
480 |
unsigned_type) \ |
481 |
VAVG_DO(avgs##type, signed_element, signed_type) \ |
482 |
VAVG_DO(avgu##type, unsigned_element, unsigned_type) |
483 |
VAVG(b, s8, int16_t, u8, uint16_t) |
484 |
VAVG(h, s16, int32_t, u16, uint32_t) |
485 |
VAVG(w, s32, int64_t, u32, uint64_t) |
486 |
#undef VAVG_DO
|
487 |
#undef VAVG
|
488 |
|
489 |
#define VCF(suffix, cvt, element) \
|
490 |
void helper_vcf##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
491 |
ppc_avr_t *b, uint32_t uim) \ |
492 |
{ \ |
493 |
int i; \
|
494 |
\ |
495 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
496 |
float32 t = cvt(b->element[i], &env->vec_status); \ |
497 |
r->f[i] = float32_scalbn(t, -uim, &env->vec_status); \ |
498 |
} \ |
499 |
} |
500 |
VCF(ux, uint32_to_float32, u32) |
501 |
VCF(sx, int32_to_float32, s32) |
502 |
#undef VCF
|
503 |
|
504 |
#define VCMP_DO(suffix, compare, element, record) \
|
505 |
void helper_vcmp##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
506 |
ppc_avr_t *a, ppc_avr_t *b) \ |
507 |
{ \ |
508 |
uint32_t ones = (uint32_t)-1; \
|
509 |
uint32_t all = ones; \ |
510 |
uint32_t none = 0; \
|
511 |
int i; \
|
512 |
\ |
513 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
514 |
uint32_t result = (a->element[i] compare b->element[i] ? \ |
515 |
ones : 0x0); \
|
516 |
switch (sizeof(a->element[0])) { \ |
517 |
case 4: \ |
518 |
r->u32[i] = result; \ |
519 |
break; \
|
520 |
case 2: \ |
521 |
r->u16[i] = result; \ |
522 |
break; \
|
523 |
case 1: \ |
524 |
r->u8[i] = result; \ |
525 |
break; \
|
526 |
} \ |
527 |
all &= result; \ |
528 |
none |= result; \ |
529 |
} \ |
530 |
if (record) { \
|
531 |
env->crf[6] = ((all != 0) << 3) | ((none == 0) << 1); \ |
532 |
} \ |
533 |
} |
534 |
#define VCMP(suffix, compare, element) \
|
535 |
VCMP_DO(suffix, compare, element, 0) \
|
536 |
VCMP_DO(suffix##_dot, compare, element, 1) |
537 |
VCMP(equb, ==, u8) |
538 |
VCMP(equh, ==, u16) |
539 |
VCMP(equw, ==, u32) |
540 |
VCMP(gtub, >, u8) |
541 |
VCMP(gtuh, >, u16) |
542 |
VCMP(gtuw, >, u32) |
543 |
VCMP(gtsb, >, s8) |
544 |
VCMP(gtsh, >, s16) |
545 |
VCMP(gtsw, >, s32) |
546 |
#undef VCMP_DO
|
547 |
#undef VCMP
|
548 |
|
549 |
#define VCMPFP_DO(suffix, compare, order, record) \
|
550 |
void helper_vcmp##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
551 |
ppc_avr_t *a, ppc_avr_t *b) \ |
552 |
{ \ |
553 |
uint32_t ones = (uint32_t)-1; \
|
554 |
uint32_t all = ones; \ |
555 |
uint32_t none = 0; \
|
556 |
int i; \
|
557 |
\ |
558 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
559 |
uint32_t result; \ |
560 |
int rel = float32_compare_quiet(a->f[i], b->f[i], \
|
561 |
&env->vec_status); \ |
562 |
if (rel == float_relation_unordered) { \
|
563 |
result = 0; \
|
564 |
} else if (rel compare order) { \ |
565 |
result = ones; \ |
566 |
} else { \
|
567 |
result = 0; \
|
568 |
} \ |
569 |
r->u32[i] = result; \ |
570 |
all &= result; \ |
571 |
none |= result; \ |
572 |
} \ |
573 |
if (record) { \
|
574 |
env->crf[6] = ((all != 0) << 3) | ((none == 0) << 1); \ |
575 |
} \ |
576 |
} |
577 |
#define VCMPFP(suffix, compare, order) \
|
578 |
VCMPFP_DO(suffix, compare, order, 0) \
|
579 |
VCMPFP_DO(suffix##_dot, compare, order, 1) |
580 |
VCMPFP(eqfp, ==, float_relation_equal) |
581 |
VCMPFP(gefp, !=, float_relation_less) |
582 |
VCMPFP(gtfp, ==, float_relation_greater) |
583 |
#undef VCMPFP_DO
|
584 |
#undef VCMPFP
|
585 |
|
586 |
static inline void vcmpbfp_internal(CPUPPCState *env, ppc_avr_t *r, |
587 |
ppc_avr_t *a, ppc_avr_t *b, int record)
|
588 |
{ |
589 |
int i;
|
590 |
int all_in = 0; |
591 |
|
592 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
593 |
int le_rel = float32_compare_quiet(a->f[i], b->f[i], &env->vec_status);
|
594 |
if (le_rel == float_relation_unordered) {
|
595 |
r->u32[i] = 0xc0000000;
|
596 |
/* ALL_IN does not need to be updated here. */
|
597 |
} else {
|
598 |
float32 bneg = float32_chs(b->f[i]); |
599 |
int ge_rel = float32_compare_quiet(a->f[i], bneg, &env->vec_status);
|
600 |
int le = le_rel != float_relation_greater;
|
601 |
int ge = ge_rel != float_relation_less;
|
602 |
|
603 |
r->u32[i] = ((!le) << 31) | ((!ge) << 30); |
604 |
all_in |= (!le | !ge); |
605 |
} |
606 |
} |
607 |
if (record) {
|
608 |
env->crf[6] = (all_in == 0) << 1; |
609 |
} |
610 |
} |
611 |
|
612 |
void helper_vcmpbfp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
613 |
{ |
614 |
vcmpbfp_internal(env, r, a, b, 0);
|
615 |
} |
616 |
|
617 |
void helper_vcmpbfp_dot(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
618 |
ppc_avr_t *b) |
619 |
{ |
620 |
vcmpbfp_internal(env, r, a, b, 1);
|
621 |
} |
622 |
|
623 |
#define VCT(suffix, satcvt, element) \
|
624 |
void helper_vct##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
625 |
ppc_avr_t *b, uint32_t uim) \ |
626 |
{ \ |
627 |
int i; \
|
628 |
int sat = 0; \ |
629 |
float_status s = env->vec_status; \ |
630 |
\ |
631 |
set_float_rounding_mode(float_round_to_zero, &s); \ |
632 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
633 |
if (float32_is_any_nan(b->f[i])) { \
|
634 |
r->element[i] = 0; \
|
635 |
} else { \
|
636 |
float64 t = float32_to_float64(b->f[i], &s); \ |
637 |
int64_t j; \ |
638 |
\ |
639 |
t = float64_scalbn(t, uim, &s); \ |
640 |
j = float64_to_int64(t, &s); \ |
641 |
r->element[i] = satcvt(j, &sat); \ |
642 |
} \ |
643 |
} \ |
644 |
if (sat) { \
|
645 |
env->vscr |= (1 << VSCR_SAT); \
|
646 |
} \ |
647 |
} |
648 |
VCT(uxs, cvtsduw, u32) |
649 |
VCT(sxs, cvtsdsw, s32) |
650 |
#undef VCT
|
651 |
|
652 |
void helper_vmaddfp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b,
|
653 |
ppc_avr_t *c) |
654 |
{ |
655 |
int i;
|
656 |
|
657 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
658 |
HANDLE_NAN3(r->f[i], a->f[i], b->f[i], c->f[i]) { |
659 |
/* Need to do the computation in higher precision and round
|
660 |
* once at the end. */
|
661 |
float64 af, bf, cf, t; |
662 |
|
663 |
af = float32_to_float64(a->f[i], &env->vec_status); |
664 |
bf = float32_to_float64(b->f[i], &env->vec_status); |
665 |
cf = float32_to_float64(c->f[i], &env->vec_status); |
666 |
t = float64_mul(af, cf, &env->vec_status); |
667 |
t = float64_add(t, bf, &env->vec_status); |
668 |
r->f[i] = float64_to_float32(t, &env->vec_status); |
669 |
} |
670 |
} |
671 |
} |
672 |
|
673 |
void helper_vmhaddshs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
674 |
ppc_avr_t *b, ppc_avr_t *c) |
675 |
{ |
676 |
int sat = 0; |
677 |
int i;
|
678 |
|
679 |
for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
680 |
int32_t prod = a->s16[i] * b->s16[i]; |
681 |
int32_t t = (int32_t)c->s16[i] + (prod >> 15);
|
682 |
|
683 |
r->s16[i] = cvtswsh(t, &sat); |
684 |
} |
685 |
|
686 |
if (sat) {
|
687 |
env->vscr |= (1 << VSCR_SAT);
|
688 |
} |
689 |
} |
690 |
|
691 |
void helper_vmhraddshs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
692 |
ppc_avr_t *b, ppc_avr_t *c) |
693 |
{ |
694 |
int sat = 0; |
695 |
int i;
|
696 |
|
697 |
for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
698 |
int32_t prod = a->s16[i] * b->s16[i] + 0x00004000;
|
699 |
int32_t t = (int32_t)c->s16[i] + (prod >> 15);
|
700 |
r->s16[i] = cvtswsh(t, &sat); |
701 |
} |
702 |
|
703 |
if (sat) {
|
704 |
env->vscr |= (1 << VSCR_SAT);
|
705 |
} |
706 |
} |
707 |
|
708 |
#define VMINMAX_DO(name, compare, element) \
|
709 |
void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
710 |
{ \ |
711 |
int i; \
|
712 |
\ |
713 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
714 |
if (a->element[i] compare b->element[i]) { \
|
715 |
r->element[i] = b->element[i]; \ |
716 |
} else { \
|
717 |
r->element[i] = a->element[i]; \ |
718 |
} \ |
719 |
} \ |
720 |
} |
721 |
#define VMINMAX(suffix, element) \
|
722 |
VMINMAX_DO(min##suffix, >, element) \ |
723 |
VMINMAX_DO(max##suffix, <, element) |
724 |
VMINMAX(sb, s8) |
725 |
VMINMAX(sh, s16) |
726 |
VMINMAX(sw, s32) |
727 |
VMINMAX(ub, u8) |
728 |
VMINMAX(uh, u16) |
729 |
VMINMAX(uw, u32) |
730 |
#undef VMINMAX_DO
|
731 |
#undef VMINMAX
|
732 |
|
733 |
#define VMINMAXFP(suffix, rT, rF) \
|
734 |
void helper_v##suffix(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, \ |
735 |
ppc_avr_t *b) \ |
736 |
{ \ |
737 |
int i; \
|
738 |
\ |
739 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
740 |
HANDLE_NAN2(r->f[i], a->f[i], b->f[i]) { \ |
741 |
if (float32_lt_quiet(a->f[i], b->f[i], \
|
742 |
&env->vec_status)) { \ |
743 |
r->f[i] = rT->f[i]; \ |
744 |
} else { \
|
745 |
r->f[i] = rF->f[i]; \ |
746 |
} \ |
747 |
} \ |
748 |
} \ |
749 |
} |
750 |
VMINMAXFP(minfp, a, b) |
751 |
VMINMAXFP(maxfp, b, a) |
752 |
#undef VMINMAXFP
|
753 |
|
754 |
void helper_vmladduhm(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
|
755 |
{ |
756 |
int i;
|
757 |
|
758 |
for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
759 |
int32_t prod = a->s16[i] * b->s16[i]; |
760 |
r->s16[i] = (int16_t) (prod + c->s16[i]); |
761 |
} |
762 |
} |
763 |
|
764 |
#define VMRG_DO(name, element, highp) \
|
765 |
void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
766 |
{ \ |
767 |
ppc_avr_t result; \ |
768 |
int i; \
|
769 |
size_t n_elems = ARRAY_SIZE(r->element); \ |
770 |
\ |
771 |
for (i = 0; i < n_elems / 2; i++) { \ |
772 |
if (highp) { \
|
773 |
result.element[i*2+HI_IDX] = a->element[i]; \
|
774 |
result.element[i*2+LO_IDX] = b->element[i]; \
|
775 |
} else { \
|
776 |
result.element[n_elems - i * 2 - (1 + HI_IDX)] = \ |
777 |
b->element[n_elems - i - 1]; \
|
778 |
result.element[n_elems - i * 2 - (1 + LO_IDX)] = \ |
779 |
a->element[n_elems - i - 1]; \
|
780 |
} \ |
781 |
} \ |
782 |
*r = result; \ |
783 |
} |
784 |
#if defined(HOST_WORDS_BIGENDIAN)
|
785 |
#define MRGHI 0 |
786 |
#define MRGLO 1 |
787 |
#else
|
788 |
#define MRGHI 1 |
789 |
#define MRGLO 0 |
790 |
#endif
|
791 |
#define VMRG(suffix, element) \
|
792 |
VMRG_DO(mrgl##suffix, element, MRGHI) \ |
793 |
VMRG_DO(mrgh##suffix, element, MRGLO) |
794 |
VMRG(b, u8) |
795 |
VMRG(h, u16) |
796 |
VMRG(w, u32) |
797 |
#undef VMRG_DO
|
798 |
#undef VMRG
|
799 |
#undef MRGHI
|
800 |
#undef MRGLO
|
801 |
|
802 |
void helper_vmsummbm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
803 |
ppc_avr_t *b, ppc_avr_t *c) |
804 |
{ |
805 |
int32_t prod[16];
|
806 |
int i;
|
807 |
|
808 |
for (i = 0; i < ARRAY_SIZE(r->s8); i++) { |
809 |
prod[i] = (int32_t)a->s8[i] * b->u8[i]; |
810 |
} |
811 |
|
812 |
VECTOR_FOR_INORDER_I(i, s32) { |
813 |
r->s32[i] = c->s32[i] + prod[4 * i] + prod[4 * i + 1] + |
814 |
prod[4 * i + 2] + prod[4 * i + 3]; |
815 |
} |
816 |
} |
817 |
|
818 |
void helper_vmsumshm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
819 |
ppc_avr_t *b, ppc_avr_t *c) |
820 |
{ |
821 |
int32_t prod[8];
|
822 |
int i;
|
823 |
|
824 |
for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
825 |
prod[i] = a->s16[i] * b->s16[i]; |
826 |
} |
827 |
|
828 |
VECTOR_FOR_INORDER_I(i, s32) { |
829 |
r->s32[i] = c->s32[i] + prod[2 * i] + prod[2 * i + 1]; |
830 |
} |
831 |
} |
832 |
|
833 |
void helper_vmsumshs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
834 |
ppc_avr_t *b, ppc_avr_t *c) |
835 |
{ |
836 |
int32_t prod[8];
|
837 |
int i;
|
838 |
int sat = 0; |
839 |
|
840 |
for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
841 |
prod[i] = (int32_t)a->s16[i] * b->s16[i]; |
842 |
} |
843 |
|
844 |
VECTOR_FOR_INORDER_I(i, s32) { |
845 |
int64_t t = (int64_t)c->s32[i] + prod[2 * i] + prod[2 * i + 1]; |
846 |
|
847 |
r->u32[i] = cvtsdsw(t, &sat); |
848 |
} |
849 |
|
850 |
if (sat) {
|
851 |
env->vscr |= (1 << VSCR_SAT);
|
852 |
} |
853 |
} |
854 |
|
855 |
void helper_vmsumubm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
856 |
ppc_avr_t *b, ppc_avr_t *c) |
857 |
{ |
858 |
uint16_t prod[16];
|
859 |
int i;
|
860 |
|
861 |
for (i = 0; i < ARRAY_SIZE(r->u8); i++) { |
862 |
prod[i] = a->u8[i] * b->u8[i]; |
863 |
} |
864 |
|
865 |
VECTOR_FOR_INORDER_I(i, u32) { |
866 |
r->u32[i] = c->u32[i] + prod[4 * i] + prod[4 * i + 1] + |
867 |
prod[4 * i + 2] + prod[4 * i + 3]; |
868 |
} |
869 |
} |
870 |
|
871 |
void helper_vmsumuhm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
872 |
ppc_avr_t *b, ppc_avr_t *c) |
873 |
{ |
874 |
uint32_t prod[8];
|
875 |
int i;
|
876 |
|
877 |
for (i = 0; i < ARRAY_SIZE(r->u16); i++) { |
878 |
prod[i] = a->u16[i] * b->u16[i]; |
879 |
} |
880 |
|
881 |
VECTOR_FOR_INORDER_I(i, u32) { |
882 |
r->u32[i] = c->u32[i] + prod[2 * i] + prod[2 * i + 1]; |
883 |
} |
884 |
} |
885 |
|
886 |
void helper_vmsumuhs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
887 |
ppc_avr_t *b, ppc_avr_t *c) |
888 |
{ |
889 |
uint32_t prod[8];
|
890 |
int i;
|
891 |
int sat = 0; |
892 |
|
893 |
for (i = 0; i < ARRAY_SIZE(r->u16); i++) { |
894 |
prod[i] = a->u16[i] * b->u16[i]; |
895 |
} |
896 |
|
897 |
VECTOR_FOR_INORDER_I(i, s32) { |
898 |
uint64_t t = (uint64_t)c->u32[i] + prod[2 * i] + prod[2 * i + 1]; |
899 |
|
900 |
r->u32[i] = cvtuduw(t, &sat); |
901 |
} |
902 |
|
903 |
if (sat) {
|
904 |
env->vscr |= (1 << VSCR_SAT);
|
905 |
} |
906 |
} |
907 |
|
908 |
#define VMUL_DO(name, mul_element, prod_element, evenp) \
|
909 |
void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
910 |
{ \ |
911 |
int i; \
|
912 |
\ |
913 |
VECTOR_FOR_INORDER_I(i, prod_element) { \ |
914 |
if (evenp) { \
|
915 |
r->prod_element[i] = a->mul_element[i * 2 + HI_IDX] * \
|
916 |
b->mul_element[i * 2 + HI_IDX]; \
|
917 |
} else { \
|
918 |
r->prod_element[i] = a->mul_element[i * 2 + LO_IDX] * \
|
919 |
b->mul_element[i * 2 + LO_IDX]; \
|
920 |
} \ |
921 |
} \ |
922 |
} |
923 |
#define VMUL(suffix, mul_element, prod_element) \
|
924 |
VMUL_DO(mule##suffix, mul_element, prod_element, 1) \ |
925 |
VMUL_DO(mulo##suffix, mul_element, prod_element, 0) |
926 |
VMUL(sb, s8, s16) |
927 |
VMUL(sh, s16, s32) |
928 |
VMUL(ub, u8, u16) |
929 |
VMUL(uh, u16, u32) |
930 |
#undef VMUL_DO
|
931 |
#undef VMUL
|
932 |
|
933 |
void helper_vnmsubfp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a,
|
934 |
ppc_avr_t *b, ppc_avr_t *c) |
935 |
{ |
936 |
int i;
|
937 |
|
938 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
939 |
HANDLE_NAN3(r->f[i], a->f[i], b->f[i], c->f[i]) { |
940 |
/* Need to do the computation is higher precision and round
|
941 |
* once at the end. */
|
942 |
float64 af, bf, cf, t; |
943 |
|
944 |
af = float32_to_float64(a->f[i], &env->vec_status); |
945 |
bf = float32_to_float64(b->f[i], &env->vec_status); |
946 |
cf = float32_to_float64(c->f[i], &env->vec_status); |
947 |
t = float64_mul(af, cf, &env->vec_status); |
948 |
t = float64_sub(t, bf, &env->vec_status); |
949 |
t = float64_chs(t); |
950 |
r->f[i] = float64_to_float32(t, &env->vec_status); |
951 |
} |
952 |
} |
953 |
} |
954 |
|
955 |
void helper_vperm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b,
|
956 |
ppc_avr_t *c) |
957 |
{ |
958 |
ppc_avr_t result; |
959 |
int i;
|
960 |
|
961 |
VECTOR_FOR_INORDER_I(i, u8) { |
962 |
int s = c->u8[i] & 0x1f; |
963 |
#if defined(HOST_WORDS_BIGENDIAN)
|
964 |
int index = s & 0xf; |
965 |
#else
|
966 |
int index = 15 - (s & 0xf); |
967 |
#endif
|
968 |
|
969 |
if (s & 0x10) { |
970 |
result.u8[i] = b->u8[index]; |
971 |
} else {
|
972 |
result.u8[i] = a->u8[index]; |
973 |
} |
974 |
} |
975 |
*r = result; |
976 |
} |
977 |
|
978 |
#if defined(HOST_WORDS_BIGENDIAN)
|
979 |
#define PKBIG 1 |
980 |
#else
|
981 |
#define PKBIG 0 |
982 |
#endif
|
983 |
void helper_vpkpx(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
984 |
{ |
985 |
int i, j;
|
986 |
ppc_avr_t result; |
987 |
#if defined(HOST_WORDS_BIGENDIAN)
|
988 |
const ppc_avr_t *x[2] = { a, b }; |
989 |
#else
|
990 |
const ppc_avr_t *x[2] = { b, a }; |
991 |
#endif
|
992 |
|
993 |
VECTOR_FOR_INORDER_I(i, u64) { |
994 |
VECTOR_FOR_INORDER_I(j, u32) { |
995 |
uint32_t e = x[i]->u32[j]; |
996 |
|
997 |
result.u16[4*i+j] = (((e >> 9) & 0xfc00) | |
998 |
((e >> 6) & 0x3e0) | |
999 |
((e >> 3) & 0x1f)); |
1000 |
} |
1001 |
} |
1002 |
*r = result; |
1003 |
} |
1004 |
|
1005 |
#define VPK(suffix, from, to, cvt, dosat) \
|
1006 |
void helper_vpk##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
1007 |
ppc_avr_t *a, ppc_avr_t *b) \ |
1008 |
{ \ |
1009 |
int i; \
|
1010 |
int sat = 0; \ |
1011 |
ppc_avr_t result; \ |
1012 |
ppc_avr_t *a0 = PKBIG ? a : b; \ |
1013 |
ppc_avr_t *a1 = PKBIG ? b : a; \ |
1014 |
\ |
1015 |
VECTOR_FOR_INORDER_I(i, from) { \ |
1016 |
result.to[i] = cvt(a0->from[i], &sat); \ |
1017 |
result.to[i+ARRAY_SIZE(r->from)] = cvt(a1->from[i], &sat); \ |
1018 |
} \ |
1019 |
*r = result; \ |
1020 |
if (dosat && sat) { \
|
1021 |
env->vscr |= (1 << VSCR_SAT); \
|
1022 |
} \ |
1023 |
} |
1024 |
#define I(x, y) (x)
|
1025 |
VPK(shss, s16, s8, cvtshsb, 1)
|
1026 |
VPK(shus, s16, u8, cvtshub, 1)
|
1027 |
VPK(swss, s32, s16, cvtswsh, 1)
|
1028 |
VPK(swus, s32, u16, cvtswuh, 1)
|
1029 |
VPK(uhus, u16, u8, cvtuhub, 1)
|
1030 |
VPK(uwus, u32, u16, cvtuwuh, 1)
|
1031 |
VPK(uhum, u16, u8, I, 0)
|
1032 |
VPK(uwum, u32, u16, I, 0)
|
1033 |
#undef I
|
1034 |
#undef VPK
|
1035 |
#undef PKBIG
|
1036 |
|
1037 |
void helper_vrefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
|
1038 |
{ |
1039 |
int i;
|
1040 |
|
1041 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
1042 |
HANDLE_NAN1(r->f[i], b->f[i]) { |
1043 |
r->f[i] = float32_div(float32_one, b->f[i], &env->vec_status); |
1044 |
} |
1045 |
} |
1046 |
} |
1047 |
|
1048 |
#define VRFI(suffix, rounding) \
|
1049 |
void helper_vrfi##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
1050 |
ppc_avr_t *b) \ |
1051 |
{ \ |
1052 |
int i; \
|
1053 |
float_status s = env->vec_status; \ |
1054 |
\ |
1055 |
set_float_rounding_mode(rounding, &s); \ |
1056 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
1057 |
HANDLE_NAN1(r->f[i], b->f[i]) { \ |
1058 |
r->f[i] = float32_round_to_int (b->f[i], &s); \ |
1059 |
} \ |
1060 |
} \ |
1061 |
} |
1062 |
VRFI(n, float_round_nearest_even) |
1063 |
VRFI(m, float_round_down) |
1064 |
VRFI(p, float_round_up) |
1065 |
VRFI(z, float_round_to_zero) |
1066 |
#undef VRFI
|
1067 |
|
1068 |
#define VROTATE(suffix, element) \
|
1069 |
void helper_vrl##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 |
r->element[i] = (a->element[i] << shift) | \ |
1079 |
(a->element[i] >> (sizeof(a->element[0]) * 8 - shift)); \ |
1080 |
} \ |
1081 |
} |
1082 |
VROTATE(b, u8) |
1083 |
VROTATE(h, u16) |
1084 |
VROTATE(w, u32) |
1085 |
#undef VROTATE
|
1086 |
|
1087 |
void helper_vrsqrtefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
|
1088 |
{ |
1089 |
int i;
|
1090 |
|
1091 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
1092 |
HANDLE_NAN1(r->f[i], b->f[i]) { |
1093 |
float32 t = float32_sqrt(b->f[i], &env->vec_status); |
1094 |
|
1095 |
r->f[i] = float32_div(float32_one, t, &env->vec_status); |
1096 |
} |
1097 |
} |
1098 |
} |
1099 |
|
1100 |
void helper_vsel(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b,
|
1101 |
ppc_avr_t *c) |
1102 |
{ |
1103 |
r->u64[0] = (a->u64[0] & ~c->u64[0]) | (b->u64[0] & c->u64[0]); |
1104 |
r->u64[1] = (a->u64[1] & ~c->u64[1]) | (b->u64[1] & c->u64[1]); |
1105 |
} |
1106 |
|
1107 |
void helper_vexptefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
|
1108 |
{ |
1109 |
int i;
|
1110 |
|
1111 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
1112 |
HANDLE_NAN1(r->f[i], b->f[i]) { |
1113 |
r->f[i] = float32_exp2(b->f[i], &env->vec_status); |
1114 |
} |
1115 |
} |
1116 |
} |
1117 |
|
1118 |
void helper_vlogefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
|
1119 |
{ |
1120 |
int i;
|
1121 |
|
1122 |
for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
1123 |
HANDLE_NAN1(r->f[i], b->f[i]) { |
1124 |
r->f[i] = float32_log2(b->f[i], &env->vec_status); |
1125 |
} |
1126 |
} |
1127 |
} |
1128 |
|
1129 |
#if defined(HOST_WORDS_BIGENDIAN)
|
1130 |
#define LEFT 0 |
1131 |
#define RIGHT 1 |
1132 |
#else
|
1133 |
#define LEFT 1 |
1134 |
#define RIGHT 0 |
1135 |
#endif
|
1136 |
/* The specification says that the results are undefined if all of the
|
1137 |
* shift counts are not identical. We check to make sure that they are
|
1138 |
* to conform to what real hardware appears to do. */
|
1139 |
#define VSHIFT(suffix, leftp) \
|
1140 |
void helper_vs##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
1141 |
{ \ |
1142 |
int shift = b->u8[LO_IDX*15] & 0x7; \ |
1143 |
int doit = 1; \ |
1144 |
int i; \
|
1145 |
\ |
1146 |
for (i = 0; i < ARRAY_SIZE(r->u8); i++) { \ |
1147 |
doit = doit && ((b->u8[i] & 0x7) == shift); \
|
1148 |
} \ |
1149 |
if (doit) { \
|
1150 |
if (shift == 0) { \ |
1151 |
*r = *a; \ |
1152 |
} else if (leftp) { \ |
1153 |
uint64_t carry = a->u64[LO_IDX] >> (64 - shift); \
|
1154 |
\ |
1155 |
r->u64[HI_IDX] = (a->u64[HI_IDX] << shift) | carry; \ |
1156 |
r->u64[LO_IDX] = a->u64[LO_IDX] << shift; \ |
1157 |
} else { \
|
1158 |
uint64_t carry = a->u64[HI_IDX] << (64 - shift); \
|
1159 |
\ |
1160 |
r->u64[LO_IDX] = (a->u64[LO_IDX] >> shift) | carry; \ |
1161 |
r->u64[HI_IDX] = a->u64[HI_IDX] >> shift; \ |
1162 |
} \ |
1163 |
} \ |
1164 |
} |
1165 |
VSHIFT(l, LEFT) |
1166 |
VSHIFT(r, RIGHT) |
1167 |
#undef VSHIFT
|
1168 |
#undef LEFT
|
1169 |
#undef RIGHT
|
1170 |
|
1171 |
#define VSL(suffix, element) \
|
1172 |
void helper_vsl##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
1173 |
{ \ |
1174 |
int i; \
|
1175 |
\ |
1176 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
1177 |
unsigned int mask = ((1 << \ |
1178 |
(3 + (sizeof(a->element[0]) >> 1))) \ |
1179 |
- 1); \
|
1180 |
unsigned int shift = b->element[i] & mask; \ |
1181 |
\ |
1182 |
r->element[i] = a->element[i] << shift; \ |
1183 |
} \ |
1184 |
} |
1185 |
VSL(b, u8) |
1186 |
VSL(h, u16) |
1187 |
VSL(w, u32) |
1188 |
#undef VSL
|
1189 |
|
1190 |
void helper_vsldoi(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t shift)
|
1191 |
{ |
1192 |
int sh = shift & 0xf; |
1193 |
int i;
|
1194 |
ppc_avr_t result; |
1195 |
|
1196 |
#if defined(HOST_WORDS_BIGENDIAN)
|
1197 |
for (i = 0; i < ARRAY_SIZE(r->u8); i++) { |
1198 |
int index = sh + i;
|
1199 |
if (index > 0xf) { |
1200 |
result.u8[i] = b->u8[index - 0x10];
|
1201 |
} else {
|
1202 |
result.u8[i] = a->u8[index]; |
1203 |
} |
1204 |
} |
1205 |
#else
|
1206 |
for (i = 0; i < ARRAY_SIZE(r->u8); i++) { |
1207 |
int index = (16 - sh) + i; |
1208 |
if (index > 0xf) { |
1209 |
result.u8[i] = a->u8[index - 0x10];
|
1210 |
} else {
|
1211 |
result.u8[i] = b->u8[index]; |
1212 |
} |
1213 |
} |
1214 |
#endif
|
1215 |
*r = result; |
1216 |
} |
1217 |
|
1218 |
void helper_vslo(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
1219 |
{ |
1220 |
int sh = (b->u8[LO_IDX*0xf] >> 3) & 0xf; |
1221 |
|
1222 |
#if defined(HOST_WORDS_BIGENDIAN)
|
1223 |
memmove(&r->u8[0], &a->u8[sh], 16 - sh); |
1224 |
memset(&r->u8[16-sh], 0, sh); |
1225 |
#else
|
1226 |
memmove(&r->u8[sh], &a->u8[0], 16 - sh); |
1227 |
memset(&r->u8[0], 0, sh); |
1228 |
#endif
|
1229 |
} |
1230 |
|
1231 |
/* Experimental testing shows that hardware masks the immediate. */
|
1232 |
#define _SPLAT_MASKED(element) (splat & (ARRAY_SIZE(r->element) - 1)) |
1233 |
#if defined(HOST_WORDS_BIGENDIAN)
|
1234 |
#define SPLAT_ELEMENT(element) _SPLAT_MASKED(element)
|
1235 |
#else
|
1236 |
#define SPLAT_ELEMENT(element) \
|
1237 |
(ARRAY_SIZE(r->element) - 1 - _SPLAT_MASKED(element))
|
1238 |
#endif
|
1239 |
#define VSPLT(suffix, element) \
|
1240 |
void helper_vsplt##suffix(ppc_avr_t *r, ppc_avr_t *b, uint32_t splat) \ |
1241 |
{ \ |
1242 |
uint32_t s = b->element[SPLAT_ELEMENT(element)]; \ |
1243 |
int i; \
|
1244 |
\ |
1245 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
1246 |
r->element[i] = s; \ |
1247 |
} \ |
1248 |
} |
1249 |
VSPLT(b, u8) |
1250 |
VSPLT(h, u16) |
1251 |
VSPLT(w, u32) |
1252 |
#undef VSPLT
|
1253 |
#undef SPLAT_ELEMENT
|
1254 |
#undef _SPLAT_MASKED
|
1255 |
|
1256 |
#define VSPLTI(suffix, element, splat_type) \
|
1257 |
void helper_vspltis##suffix(ppc_avr_t *r, uint32_t splat) \ |
1258 |
{ \ |
1259 |
splat_type x = (int8_t)(splat << 3) >> 3; \ |
1260 |
int i; \
|
1261 |
\ |
1262 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
1263 |
r->element[i] = x; \ |
1264 |
} \ |
1265 |
} |
1266 |
VSPLTI(b, s8, int8_t) |
1267 |
VSPLTI(h, s16, int16_t) |
1268 |
VSPLTI(w, s32, int32_t) |
1269 |
#undef VSPLTI
|
1270 |
|
1271 |
#define VSR(suffix, element) \
|
1272 |
void helper_vsr##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
1273 |
{ \ |
1274 |
int i; \
|
1275 |
\ |
1276 |
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
1277 |
unsigned int mask = ((1 << \ |
1278 |
(3 + (sizeof(a->element[0]) >> 1))) \ |
1279 |
- 1); \
|
1280 |
unsigned int shift = b->element[i] & mask; \ |
1281 |
\ |
1282 |
r->element[i] = a->element[i] >> shift; \ |
1283 |
} \ |
1284 |
} |
1285 |
VSR(ab, s8) |
1286 |
VSR(ah, s16) |
1287 |
VSR(aw, s32) |
1288 |
VSR(b, u8) |
1289 |
VSR(h, u16) |
1290 |
VSR(w, u32) |
1291 |
#undef VSR
|
1292 |
|
1293 |
void helper_vsro(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
1294 |
{ |
1295 |
int sh = (b->u8[LO_IDX * 0xf] >> 3) & 0xf; |
1296 |
|
1297 |
#if defined(HOST_WORDS_BIGENDIAN)
|
1298 |
memmove(&r->u8[sh], &a->u8[0], 16 - sh); |
1299 |
memset(&r->u8[0], 0, sh); |
1300 |
#else
|
1301 |
memmove(&r->u8[0], &a->u8[sh], 16 - sh); |
1302 |
memset(&r->u8[16 - sh], 0, sh); |
1303 |
#endif
|
1304 |
} |
1305 |
|
1306 |
void helper_vsubcuw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
1307 |
{ |
1308 |
int i;
|
1309 |
|
1310 |
for (i = 0; i < ARRAY_SIZE(r->u32); i++) { |
1311 |
r->u32[i] = a->u32[i] >= b->u32[i]; |
1312 |
} |
1313 |
} |
1314 |
|
1315 |
void helper_vsumsws(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
1316 |
{ |
1317 |
int64_t t; |
1318 |
int i, upper;
|
1319 |
ppc_avr_t result; |
1320 |
int sat = 0; |
1321 |
|
1322 |
#if defined(HOST_WORDS_BIGENDIAN)
|
1323 |
upper = ARRAY_SIZE(r->s32)-1;
|
1324 |
#else
|
1325 |
upper = 0;
|
1326 |
#endif
|
1327 |
t = (int64_t)b->s32[upper]; |
1328 |
for (i = 0; i < ARRAY_SIZE(r->s32); i++) { |
1329 |
t += a->s32[i]; |
1330 |
result.s32[i] = 0;
|
1331 |
} |
1332 |
result.s32[upper] = cvtsdsw(t, &sat); |
1333 |
*r = result; |
1334 |
|
1335 |
if (sat) {
|
1336 |
env->vscr |= (1 << VSCR_SAT);
|
1337 |
} |
1338 |
} |
1339 |
|
1340 |
void helper_vsum2sws(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
1341 |
{ |
1342 |
int i, j, upper;
|
1343 |
ppc_avr_t result; |
1344 |
int sat = 0; |
1345 |
|
1346 |
#if defined(HOST_WORDS_BIGENDIAN)
|
1347 |
upper = 1;
|
1348 |
#else
|
1349 |
upper = 0;
|
1350 |
#endif
|
1351 |
for (i = 0; i < ARRAY_SIZE(r->u64); i++) { |
1352 |
int64_t t = (int64_t)b->s32[upper + i * 2];
|
1353 |
|
1354 |
result.u64[i] = 0;
|
1355 |
for (j = 0; j < ARRAY_SIZE(r->u64); j++) { |
1356 |
t += a->s32[2 * i + j];
|
1357 |
} |
1358 |
result.s32[upper + i * 2] = cvtsdsw(t, &sat);
|
1359 |
} |
1360 |
|
1361 |
*r = result; |
1362 |
if (sat) {
|
1363 |
env->vscr |= (1 << VSCR_SAT);
|
1364 |
} |
1365 |
} |
1366 |
|
1367 |
void helper_vsum4sbs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
1368 |
{ |
1369 |
int i, j;
|
1370 |
int sat = 0; |
1371 |
|
1372 |
for (i = 0; i < ARRAY_SIZE(r->s32); i++) { |
1373 |
int64_t t = (int64_t)b->s32[i]; |
1374 |
|
1375 |
for (j = 0; j < ARRAY_SIZE(r->s32); j++) { |
1376 |
t += a->s8[4 * i + j];
|
1377 |
} |
1378 |
r->s32[i] = cvtsdsw(t, &sat); |
1379 |
} |
1380 |
|
1381 |
if (sat) {
|
1382 |
env->vscr |= (1 << VSCR_SAT);
|
1383 |
} |
1384 |
} |
1385 |
|
1386 |
void helper_vsum4shs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
1387 |
{ |
1388 |
int sat = 0; |
1389 |
int i;
|
1390 |
|
1391 |
for (i = 0; i < ARRAY_SIZE(r->s32); i++) { |
1392 |
int64_t t = (int64_t)b->s32[i]; |
1393 |
|
1394 |
t += a->s16[2 * i] + a->s16[2 * i + 1]; |
1395 |
r->s32[i] = cvtsdsw(t, &sat); |
1396 |
} |
1397 |
|
1398 |
if (sat) {
|
1399 |
env->vscr |= (1 << VSCR_SAT);
|
1400 |
} |
1401 |
} |
1402 |
|
1403 |
void helper_vsum4ubs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
|
1404 |
{ |
1405 |
int i, j;
|
1406 |
int sat = 0; |
1407 |
|
1408 |
for (i = 0; i < ARRAY_SIZE(r->u32); i++) { |
1409 |
uint64_t t = (uint64_t)b->u32[i]; |
1410 |
|
1411 |
for (j = 0; j < ARRAY_SIZE(r->u32); j++) { |
1412 |
t += a->u8[4 * i + j];
|
1413 |
} |
1414 |
r->u32[i] = cvtuduw(t, &sat); |
1415 |
} |
1416 |
|
1417 |
if (sat) {
|
1418 |
env->vscr |= (1 << VSCR_SAT);
|
1419 |
} |
1420 |
} |
1421 |
|
1422 |
#if defined(HOST_WORDS_BIGENDIAN)
|
1423 |
#define UPKHI 1 |
1424 |
#define UPKLO 0 |
1425 |
#else
|
1426 |
#define UPKHI 0 |
1427 |
#define UPKLO 1 |
1428 |
#endif
|
1429 |
#define VUPKPX(suffix, hi) \
|
1430 |
void helper_vupk##suffix(ppc_avr_t *r, ppc_avr_t *b) \ |
1431 |
{ \ |
1432 |
int i; \
|
1433 |
ppc_avr_t result; \ |
1434 |
\ |
1435 |
for (i = 0; i < ARRAY_SIZE(r->u32); i++) { \ |
1436 |
uint16_t e = b->u16[hi ? i : i+4]; \
|
1437 |
uint8_t a = (e >> 15) ? 0xff : 0; \ |
1438 |
uint8_t r = (e >> 10) & 0x1f; \ |
1439 |
uint8_t g = (e >> 5) & 0x1f; \ |
1440 |
uint8_t b = e & 0x1f; \
|
1441 |
\ |
1442 |
result.u32[i] = (a << 24) | (r << 16) | (g << 8) | b; \ |
1443 |
} \ |
1444 |
*r = result; \ |
1445 |
} |
1446 |
VUPKPX(lpx, UPKLO) |
1447 |
VUPKPX(hpx, UPKHI) |
1448 |
#undef VUPKPX
|
1449 |
|
1450 |
#define VUPK(suffix, unpacked, packee, hi) \
|
1451 |
void helper_vupk##suffix(ppc_avr_t *r, ppc_avr_t *b) \ |
1452 |
{ \ |
1453 |
int i; \
|
1454 |
ppc_avr_t result; \ |
1455 |
\ |
1456 |
if (hi) { \
|
1457 |
for (i = 0; i < ARRAY_SIZE(r->unpacked); i++) { \ |
1458 |
result.unpacked[i] = b->packee[i]; \ |
1459 |
} \ |
1460 |
} else { \
|
1461 |
for (i = ARRAY_SIZE(r->unpacked); i < ARRAY_SIZE(r->packee); \
|
1462 |
i++) { \ |
1463 |
result.unpacked[i - ARRAY_SIZE(r->unpacked)] = b->packee[i]; \ |
1464 |
} \ |
1465 |
} \ |
1466 |
*r = result; \ |
1467 |
} |
1468 |
VUPK(hsb, s16, s8, UPKHI) |
1469 |
VUPK(hsh, s32, s16, UPKHI) |
1470 |
VUPK(lsb, s16, s8, UPKLO) |
1471 |
VUPK(lsh, s32, s16, UPKLO) |
1472 |
#undef VUPK
|
1473 |
#undef UPKHI
|
1474 |
#undef UPKLO
|
1475 |
|
1476 |
#undef DO_HANDLE_NAN
|
1477 |
#undef HANDLE_NAN1
|
1478 |
#undef HANDLE_NAN2
|
1479 |
#undef HANDLE_NAN3
|
1480 |
#undef VECTOR_FOR_INORDER_I
|
1481 |
#undef HI_IDX
|
1482 |
#undef LO_IDX
|
1483 |
|
1484 |
/*****************************************************************************/
|
1485 |
/* SPE extension helpers */
|
1486 |
/* Use a table to make this quicker */
|
1487 |
static const uint8_t hbrev[16] = { |
1488 |
0x0, 0x8, 0x4, 0xC, 0x2, 0xA, 0x6, 0xE, |
1489 |
0x1, 0x9, 0x5, 0xD, 0x3, 0xB, 0x7, 0xF, |
1490 |
}; |
1491 |
|
1492 |
static inline uint8_t byte_reverse(uint8_t val) |
1493 |
{ |
1494 |
return hbrev[val >> 4] | (hbrev[val & 0xF] << 4); |
1495 |
} |
1496 |
|
1497 |
static inline uint32_t word_reverse(uint32_t val) |
1498 |
{ |
1499 |
return byte_reverse(val >> 24) | (byte_reverse(val >> 16) << 8) | |
1500 |
(byte_reverse(val >> 8) << 16) | (byte_reverse(val) << 24); |
1501 |
} |
1502 |
|
1503 |
#define MASKBITS 16 /* Random value - to be fixed (implementation dependent) */ |
1504 |
target_ulong helper_brinc(target_ulong arg1, target_ulong arg2) |
1505 |
{ |
1506 |
uint32_t a, b, d, mask; |
1507 |
|
1508 |
mask = UINT32_MAX >> (32 - MASKBITS);
|
1509 |
a = arg1 & mask; |
1510 |
b = arg2 & mask; |
1511 |
d = word_reverse(1 + word_reverse(a | ~b));
|
1512 |
return (arg1 & ~mask) | (d & b);
|
1513 |
} |
1514 |
|
1515 |
uint32_t helper_cntlsw32(uint32_t val) |
1516 |
{ |
1517 |
if (val & 0x80000000) { |
1518 |
return clz32(~val);
|
1519 |
} else {
|
1520 |
return clz32(val);
|
1521 |
} |
1522 |
} |
1523 |
|
1524 |
uint32_t helper_cntlzw32(uint32_t val) |
1525 |
{ |
1526 |
return clz32(val);
|
1527 |
} |
1528 |
|
1529 |
/* 440 specific */
|
1530 |
target_ulong helper_dlmzb(CPUPPCState *env, target_ulong high, |
1531 |
target_ulong low, uint32_t update_Rc) |
1532 |
{ |
1533 |
target_ulong mask; |
1534 |
int i;
|
1535 |
|
1536 |
i = 1;
|
1537 |
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
1538 |
if ((high & mask) == 0) { |
1539 |
if (update_Rc) {
|
1540 |
env->crf[0] = 0x4; |
1541 |
} |
1542 |
goto done;
|
1543 |
} |
1544 |
i++; |
1545 |
} |
1546 |
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
1547 |
if ((low & mask) == 0) { |
1548 |
if (update_Rc) {
|
1549 |
env->crf[0] = 0x8; |
1550 |
} |
1551 |
goto done;
|
1552 |
} |
1553 |
i++; |
1554 |
} |
1555 |
if (update_Rc) {
|
1556 |
env->crf[0] = 0x2; |
1557 |
} |
1558 |
done:
|
1559 |
env->xer = (env->xer & ~0x7F) | i;
|
1560 |
if (update_Rc) {
|
1561 |
env->crf[0] |= xer_so;
|
1562 |
} |
1563 |
return i;
|
1564 |
} |