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/*
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* PPC emulation micro-operations for qemu.
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*
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* Copyright (c) 2003 Jocelyn Mayer
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h" |
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#include "exec.h" |
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|
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#define regs (env)
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#define Ts0 (int32_t)T0
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#define Ts1 (int32_t)T1
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#define Ts2 (int32_t)T2
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#define FT0 (env->ft0)
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#define PPC_OP(name) void op_##name(void) |
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#define REG 0 |
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#include "op_template.h" |
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#define REG 1 |
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#include "op_template.h" |
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|
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#define REG 2 |
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#include "op_template.h" |
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|
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#define REG 3 |
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#include "op_template.h" |
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|
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#define REG 4 |
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#include "op_template.h" |
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|
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#define REG 5 |
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#include "op_template.h" |
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|
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#define REG 6 |
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#include "op_template.h" |
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|
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#define REG 7 |
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#include "op_template.h" |
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|
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#define REG 8 |
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#include "op_template.h" |
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|
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#define REG 9 |
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#include "op_template.h" |
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|
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#define REG 10 |
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#include "op_template.h" |
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|
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#define REG 11 |
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#include "op_template.h" |
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|
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#define REG 12 |
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#include "op_template.h" |
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#define REG 13 |
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#include "op_template.h" |
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#define REG 14 |
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#include "op_template.h" |
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|
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#define REG 15 |
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#include "op_template.h" |
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|
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#define REG 16 |
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#include "op_template.h" |
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|
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#define REG 17 |
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#include "op_template.h" |
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|
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#define REG 18 |
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#include "op_template.h" |
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#define REG 19 |
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#include "op_template.h" |
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#define REG 20 |
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#include "op_template.h" |
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#define REG 21 |
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#include "op_template.h" |
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#define REG 22 |
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#include "op_template.h" |
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#define REG 23 |
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#include "op_template.h" |
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#define REG 24 |
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#include "op_template.h" |
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#define REG 25 |
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#include "op_template.h" |
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#define REG 26 |
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#include "op_template.h" |
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#define REG 27 |
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#include "op_template.h" |
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#define REG 28 |
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#include "op_template.h" |
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#define REG 29 |
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#include "op_template.h" |
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#define REG 30 |
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#include "op_template.h" |
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#define REG 31 |
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#include "op_template.h" |
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|
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/* PPC state maintenance operations */
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/* set_Rc0 */
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PPC_OP(set_Rc0) |
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{
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uint32_t tmp; |
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if (Ts0 < 0) { |
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tmp = 0x08;
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} else if (Ts0 > 0) { |
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tmp = 0x04;
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} else {
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tmp = 0x02;
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} |
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set_CRn(0, tmp);
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RETURN(); |
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} |
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PPC_OP(set_Rc0_ov) |
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{
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uint32_t tmp; |
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if (Ts0 < 0) { |
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tmp = 0x08;
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} else if (Ts0 > 0) { |
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tmp = 0x04;
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} else {
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tmp = 0x02;
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} |
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tmp |= xer_ov; |
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set_CRn(0, tmp);
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RETURN(); |
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} |
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|
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/* reset_Rc0 */
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PPC_OP(reset_Rc0) |
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{
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set_CRn(0, 0x02 | xer_ov); |
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RETURN(); |
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} |
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/* set_Rc0_1 */
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PPC_OP(set_Rc0_1) |
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{
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set_CRn(0, 0x04 | xer_ov); |
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RETURN(); |
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} |
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PPC_OP(set_T0) |
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{
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T0 = PARAM(1);
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RETURN(); |
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} |
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PPC_OP(set_T1) |
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{
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T1 = PARAM(1);
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RETURN(); |
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} |
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PPC_OP(set_T2) |
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{
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T2 = PARAM(1);
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RETURN(); |
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} |
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|
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/* Update time base */
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PPC_OP(update_tb) |
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{
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T0 = regs->spr[SPR_ENCODE(268)];
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T1 = T0; |
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T0 += PARAM(1);
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if (T0 < T1) {
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T1 = regs->spr[SPR_ENCODE(269)] + 1; |
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regs->spr[SPR_ENCODE(269)] = T1;
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} |
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regs->spr[SPR_ENCODE(268)] = T0;
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RETURN(); |
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} |
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PPC_OP(raise_exception) |
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{
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raise_exception(PARAM(1));
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RETURN(); |
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} |
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PPC_OP(exit_tb) |
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{
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EXIT_TB(); |
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} |
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|
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PPC_OP(load_cr) |
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{
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T0 = do_load_cr(); |
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RETURN(); |
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} |
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|
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PPC_OP(store_cr) |
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{
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do_store_cr(PARAM(1), T0);
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RETURN(); |
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} |
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|
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PPC_OP(load_xer_cr) |
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{
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T0 = (xer_so << 3) | (xer_ov << 2) | (xer_ca << 1); |
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RETURN(); |
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} |
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|
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PPC_OP(clear_xer_cr) |
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{
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xer_so = 0;
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xer_ov = 0;
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xer_ca = 0;
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RETURN(); |
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} |
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|
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PPC_OP(load_xer_bc) |
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{
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T0 = xer_bc; |
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RETURN(); |
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} |
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|
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PPC_OP(load_xer) |
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{
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T0 = do_load_xer(); |
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RETURN(); |
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} |
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|
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PPC_OP(store_xer) |
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{
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do_store_xer(T0); |
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RETURN(); |
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} |
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|
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PPC_OP(load_msr) |
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{
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T0 = do_load_msr(); |
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RETURN(); |
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} |
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PPC_OP(store_msr) |
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{
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do_store_msr(T0); |
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RETURN(); |
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} |
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PPC_OP(load_lr) |
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{
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regs->LR = PARAM(1);
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RETURN(); |
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} |
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|
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/* Set reservation */
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PPC_OP(set_reservation) |
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{
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regs->reserve = T1 & ~0x03;
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RETURN(); |
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} |
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|
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/* Reset reservation */
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PPC_OP(reset_reservation) |
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{
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regs->reserve = 0;
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RETURN(); |
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} |
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|
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/* crf operations */
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PPC_OP(getbit_T0) |
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{
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T0 = (T0 >> PARAM(1)) & 1; |
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RETURN(); |
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} |
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|
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PPC_OP(getbit_T1) |
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{
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T1 = (T1 >> PARAM(1)) & 1; |
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RETURN(); |
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} |
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|
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PPC_OP(setcrfbit) |
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{
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T1 = (T1 & PARAM(1)) | (T0 << PARAM(2)); |
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RETURN(); |
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} |
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|
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/* Branch */
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#define __PPC_OP_B(name, target) \
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PPC_OP(name) \ |
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{ \
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regs->nip = (target); \ |
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RETURN(); \ |
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} |
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|
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#define __PPC_OP_BL(name, target) \
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PPC_OP(name) \ |
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{ \
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regs->LR = PARAM(1); \
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regs->nip = (target); \ |
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RETURN(); \ |
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} |
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|
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#define PPC_OP_B(name, target) \
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__PPC_OP_B(name, target); \ |
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__PPC_OP_BL(name##l, target) |
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|
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#define __PPC_OP_BC(name, cond, target) \
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PPC_OP(name) \ |
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{ \
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if (cond) { \
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T0 = (target); \ |
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} else { \
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T0 = PARAM(1); \
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} \ |
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regs->nip = T0; \ |
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RETURN(); \ |
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} |
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|
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#define __PPC_OP_BCL(name, cond, target) \
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PPC_OP(name) \ |
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{ \
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if (cond) { \
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T0 = (target); \ |
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regs->LR = PARAM(1); \
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} else { \
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T0 = PARAM(1); \
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} \ |
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regs->nip = T0; \ |
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RETURN(); \ |
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} |
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|
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#define _PPC_OP_BC(name, namel, cond, target) \
|
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__PPC_OP_BC(name, cond, target); \ |
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__PPC_OP_BCL(namel, cond, target) |
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|
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/* Branch to target */
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#define PPC_OP_BC(name, cond) \
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_PPC_OP_BC(b_##name, bl_##name, cond, PARAM(2)) |
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|
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PPC_OP_B(b, PARAM(1));
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PPC_OP_BC(ctr, (regs->CTR != 0));
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PPC_OP_BC(ctr_true, (regs->CTR != 0 && (T0 & PARAM(3)) != 0)); |
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PPC_OP_BC(ctr_false, (regs->CTR != 0 && (T0 & PARAM(3)) == 0)); |
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PPC_OP_BC(ctrz, (regs->CTR == 0));
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PPC_OP_BC(ctrz_true, (regs->CTR == 0 && (T0 & PARAM(3)) != 0)); |
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PPC_OP_BC(ctrz_false, (regs->CTR == 0 && (T0 & PARAM(3)) == 0)); |
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PPC_OP_BC(true, ((T0 & PARAM(3)) != 0)); |
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PPC_OP_BC(false, ((T0 & PARAM(3)) == 0)); |
| 376 |
|
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/* Branch to CTR */
|
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#define PPC_OP_BCCTR(name, cond) \
|
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_PPC_OP_BC(bctr_##name, bctrl_##name, cond, regs->CTR & ~0x03) |
| 380 |
|
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PPC_OP_B(bctr, regs->CTR & ~0x03);
|
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PPC_OP_BCCTR(ctr, (regs->CTR != 0));
|
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PPC_OP_BCCTR(ctr_true, (regs->CTR != 0 && (T0 & PARAM(2)) != 0)); |
| 384 |
PPC_OP_BCCTR(ctr_false, (regs->CTR != 0 && (T0 & PARAM(2)) == 0)); |
| 385 |
PPC_OP_BCCTR(ctrz, (regs->CTR == 0));
|
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PPC_OP_BCCTR(ctrz_true, (regs->CTR == 0 && (T0 & PARAM(2)) != 0)); |
| 387 |
PPC_OP_BCCTR(ctrz_false, (regs->CTR == 0 && (T0 & PARAM(2)) == 0)); |
| 388 |
PPC_OP_BCCTR(true, ((T0 & PARAM(2)) != 0)); |
| 389 |
PPC_OP_BCCTR(false, ((T0 & PARAM(2)) == 0)); |
| 390 |
|
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/* Branch to LR */
|
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#define PPC_OP_BCLR(name, cond) \
|
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_PPC_OP_BC(blr_##name, blrl_##name, cond, regs->LR & ~0x03) |
| 394 |
|
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PPC_OP_B(blr, regs->LR & ~0x03);
|
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PPC_OP_BCLR(ctr, (regs->CTR != 0));
|
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PPC_OP_BCLR(ctr_true, (regs->CTR != 0 && (T0 & PARAM(2)) != 0)); |
| 398 |
PPC_OP_BCLR(ctr_false, (regs->CTR != 0 && (T0 & PARAM(2)) == 0)); |
| 399 |
PPC_OP_BCLR(ctrz, (regs->CTR == 0));
|
| 400 |
PPC_OP_BCLR(ctrz_true, (regs->CTR == 0 && (T0 & PARAM(2)) != 0)); |
| 401 |
PPC_OP_BCLR(ctrz_false, (regs->CTR == 0 && (T0 & PARAM(2)) == 0)); |
| 402 |
PPC_OP_BCLR(true, ((T0 & PARAM(2)) != 0)); |
| 403 |
PPC_OP_BCLR(false, ((T0 & PARAM(2)) == 0)); |
| 404 |
|
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/* CTR maintenance */
|
| 406 |
PPC_OP(dec_ctr) |
| 407 |
{
|
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regs->CTR--; |
| 409 |
RETURN(); |
| 410 |
} |
| 411 |
|
| 412 |
/*** Integer arithmetic ***/
|
| 413 |
/* add */
|
| 414 |
PPC_OP(add) |
| 415 |
{
|
| 416 |
T0 += T1; |
| 417 |
RETURN(); |
| 418 |
} |
| 419 |
|
| 420 |
PPC_OP(addo) |
| 421 |
{
|
| 422 |
T2 = T0; |
| 423 |
T0 += T1; |
| 424 |
if ((T2 ^ T1 ^ (-1)) & (T2 ^ T0) & (1 << 31)) { |
| 425 |
xer_so = 1;
|
| 426 |
xer_ov = 1;
|
| 427 |
} else {
|
| 428 |
xer_ov = 0;
|
| 429 |
} |
| 430 |
RETURN(); |
| 431 |
} |
| 432 |
|
| 433 |
/* add carrying */
|
| 434 |
PPC_OP(addc) |
| 435 |
{
|
| 436 |
T2 = T0; |
| 437 |
T0 += T1; |
| 438 |
if (T0 < T2) {
|
| 439 |
xer_ca = 1;
|
| 440 |
} else {
|
| 441 |
xer_ca = 0;
|
| 442 |
} |
| 443 |
RETURN(); |
| 444 |
} |
| 445 |
|
| 446 |
PPC_OP(addco) |
| 447 |
{
|
| 448 |
T2 = T0; |
| 449 |
T0 += T1; |
| 450 |
if (T0 < T2) {
|
| 451 |
xer_ca = 1;
|
| 452 |
} else {
|
| 453 |
xer_ca = 0;
|
| 454 |
} |
| 455 |
if ((T2 ^ T1 ^ (-1)) & (T2 ^ T0) & (1 << 31)) { |
| 456 |
xer_so = 1;
|
| 457 |
xer_ov = 1;
|
| 458 |
} else {
|
| 459 |
xer_ov = 0;
|
| 460 |
} |
| 461 |
RETURN(); |
| 462 |
} |
| 463 |
|
| 464 |
/* add extended */
|
| 465 |
/* candidate for helper (too long) */
|
| 466 |
PPC_OP(adde) |
| 467 |
{
|
| 468 |
T2 = T0; |
| 469 |
T0 += T1 + xer_ca; |
| 470 |
if (T0 < T2 || (xer_ca == 1 && T0 == T2)) { |
| 471 |
xer_ca = 1;
|
| 472 |
} else {
|
| 473 |
xer_ca = 0;
|
| 474 |
} |
| 475 |
RETURN(); |
| 476 |
} |
| 477 |
|
| 478 |
PPC_OP(addeo) |
| 479 |
{
|
| 480 |
T2 = T0; |
| 481 |
T0 += T1 + xer_ca; |
| 482 |
if (T0 < T2 || (xer_ca == 1 && T0 == T2)) { |
| 483 |
xer_ca = 1;
|
| 484 |
} else {
|
| 485 |
xer_ca = 0;
|
| 486 |
} |
| 487 |
if ((T2 ^ T1 ^ (-1)) & (T2 ^ T0) & (1 << 31)) { |
| 488 |
xer_so = 1;
|
| 489 |
xer_ov = 1;
|
| 490 |
} else {
|
| 491 |
xer_ov = 0;
|
| 492 |
} |
| 493 |
RETURN(); |
| 494 |
} |
| 495 |
|
| 496 |
/* add immediate */
|
| 497 |
PPC_OP(addi) |
| 498 |
{
|
| 499 |
T0 += PARAM(1);
|
| 500 |
RETURN(); |
| 501 |
} |
| 502 |
|
| 503 |
/* add immediate carrying */
|
| 504 |
PPC_OP(addic) |
| 505 |
{
|
| 506 |
T1 = T0; |
| 507 |
T0 += PARAM(1);
|
| 508 |
if (T0 < T1) {
|
| 509 |
xer_ca = 1;
|
| 510 |
} else {
|
| 511 |
xer_ca = 0;
|
| 512 |
} |
| 513 |
RETURN(); |
| 514 |
} |
| 515 |
|
| 516 |
/* add to minus one extended */
|
| 517 |
PPC_OP(addme) |
| 518 |
{
|
| 519 |
T1 = T0; |
| 520 |
T0 += xer_ca + (-1);
|
| 521 |
if (T1 != 0) |
| 522 |
xer_ca = 1;
|
| 523 |
RETURN(); |
| 524 |
} |
| 525 |
|
| 526 |
PPC_OP(addmeo) |
| 527 |
{
|
| 528 |
T1 = T0; |
| 529 |
T0 += xer_ca + (-1);
|
| 530 |
if (T1 & (T1 ^ T0) & (1 << 31)) { |
| 531 |
xer_so = 1;
|
| 532 |
xer_ov = 1;
|
| 533 |
} else {
|
| 534 |
xer_ov = 0;
|
| 535 |
} |
| 536 |
if (T1 != 0) |
| 537 |
xer_ca = 1;
|
| 538 |
RETURN(); |
| 539 |
} |
| 540 |
|
| 541 |
/* add to zero extended */
|
| 542 |
PPC_OP(addze) |
| 543 |
{
|
| 544 |
T1 = T0; |
| 545 |
T0 += xer_ca; |
| 546 |
if (T0 < T1) {
|
| 547 |
xer_ca = 1;
|
| 548 |
} else {
|
| 549 |
xer_ca = 0;
|
| 550 |
} |
| 551 |
RETURN(); |
| 552 |
} |
| 553 |
|
| 554 |
PPC_OP(addzeo) |
| 555 |
{
|
| 556 |
T1 = T0; |
| 557 |
T0 += xer_ca; |
| 558 |
if ((T1 ^ (-1)) & (T1 ^ T0) & (1 << 31)) { |
| 559 |
xer_so = 1;
|
| 560 |
xer_ov = 1;
|
| 561 |
} else {
|
| 562 |
xer_ov = 0;
|
| 563 |
} |
| 564 |
if (T0 < T1) {
|
| 565 |
xer_ca = 1;
|
| 566 |
} else {
|
| 567 |
xer_ca = 0;
|
| 568 |
} |
| 569 |
RETURN(); |
| 570 |
} |
| 571 |
|
| 572 |
/* divide word */
|
| 573 |
/* candidate for helper (too long) */
|
| 574 |
PPC_OP(divw) |
| 575 |
{
|
| 576 |
if ((Ts0 == INT32_MIN && Ts1 == -1) || Ts1 == 0) { |
| 577 |
Ts0 = (-1) * (T0 >> 31); |
| 578 |
} else {
|
| 579 |
Ts0 /= Ts1; |
| 580 |
} |
| 581 |
RETURN(); |
| 582 |
} |
| 583 |
|
| 584 |
PPC_OP(divwo) |
| 585 |
{
|
| 586 |
if ((Ts0 == INT32_MIN && Ts1 == -1) || Ts1 == 0) { |
| 587 |
xer_so = 1;
|
| 588 |
xer_ov = 1;
|
| 589 |
T0 = (-1) * (T0 >> 31); |
| 590 |
} else {
|
| 591 |
xer_ov = 0;
|
| 592 |
Ts0 /= Ts1; |
| 593 |
} |
| 594 |
RETURN(); |
| 595 |
} |
| 596 |
|
| 597 |
/* divide word unsigned */
|
| 598 |
PPC_OP(divwu) |
| 599 |
{
|
| 600 |
if (T1 == 0) { |
| 601 |
T0 = 0;
|
| 602 |
} else {
|
| 603 |
T0 /= T1; |
| 604 |
} |
| 605 |
RETURN(); |
| 606 |
} |
| 607 |
|
| 608 |
PPC_OP(divwuo) |
| 609 |
{
|
| 610 |
if (T1 == 0) { |
| 611 |
xer_so = 1;
|
| 612 |
xer_ov = 1;
|
| 613 |
T0 = 0;
|
| 614 |
} else {
|
| 615 |
xer_ov = 0;
|
| 616 |
T0 /= T1; |
| 617 |
} |
| 618 |
RETURN(); |
| 619 |
} |
| 620 |
|
| 621 |
/* multiply high word */
|
| 622 |
PPC_OP(mulhw) |
| 623 |
{
|
| 624 |
Ts0 = ((int64_t)Ts0 * (int64_t)Ts1) >> 32;
|
| 625 |
RETURN(); |
| 626 |
} |
| 627 |
|
| 628 |
/* multiply high word unsigned */
|
| 629 |
PPC_OP(mulhwu) |
| 630 |
{
|
| 631 |
T0 = ((uint64_t)T0 * (uint64_t)T1) >> 32;
|
| 632 |
RETURN(); |
| 633 |
} |
| 634 |
|
| 635 |
/* multiply low immediate */
|
| 636 |
PPC_OP(mulli) |
| 637 |
{
|
| 638 |
Ts0 *= SPARAM(1);
|
| 639 |
RETURN(); |
| 640 |
} |
| 641 |
|
| 642 |
/* multiply low word */
|
| 643 |
PPC_OP(mullw) |
| 644 |
{
|
| 645 |
T0 *= T1; |
| 646 |
RETURN(); |
| 647 |
} |
| 648 |
|
| 649 |
PPC_OP(mullwo) |
| 650 |
{
|
| 651 |
int64_t res = (int64_t)Ts0 * (int64_t)Ts1; |
| 652 |
|
| 653 |
if ((int32_t)res != res) {
|
| 654 |
xer_ov = 1;
|
| 655 |
xer_so = 1;
|
| 656 |
} else {
|
| 657 |
xer_ov = 0;
|
| 658 |
} |
| 659 |
Ts0 = res; |
| 660 |
RETURN(); |
| 661 |
} |
| 662 |
|
| 663 |
/* negate */
|
| 664 |
PPC_OP(neg) |
| 665 |
{
|
| 666 |
if (T0 != 0x80000000) { |
| 667 |
Ts0 = -Ts0; |
| 668 |
} |
| 669 |
RETURN(); |
| 670 |
} |
| 671 |
|
| 672 |
PPC_OP(nego) |
| 673 |
{
|
| 674 |
if (T0 == 0x80000000) { |
| 675 |
xer_ov = 1;
|
| 676 |
xer_so = 1;
|
| 677 |
} else {
|
| 678 |
xer_ov = 0;
|
| 679 |
Ts0 = -Ts0; |
| 680 |
} |
| 681 |
RETURN(); |
| 682 |
} |
| 683 |
|
| 684 |
/* substract from */
|
| 685 |
PPC_OP(subf) |
| 686 |
{
|
| 687 |
T0 = T1 - T0; |
| 688 |
RETURN(); |
| 689 |
} |
| 690 |
|
| 691 |
PPC_OP(subfo) |
| 692 |
{
|
| 693 |
T2 = T0; |
| 694 |
T0 = T1 - T0; |
| 695 |
if (((~T2) ^ T1 ^ (-1)) & ((~T2) ^ T0) & (1 << 31)) { |
| 696 |
xer_so = 1;
|
| 697 |
xer_ov = 1;
|
| 698 |
} else {
|
| 699 |
xer_ov = 0;
|
| 700 |
} |
| 701 |
RETURN(); |
| 702 |
} |
| 703 |
|
| 704 |
/* substract from carrying */
|
| 705 |
PPC_OP(subfc) |
| 706 |
{
|
| 707 |
T0 = T1 - T0; |
| 708 |
if (T0 <= T1) {
|
| 709 |
xer_ca = 1;
|
| 710 |
} else {
|
| 711 |
xer_ca = 0;
|
| 712 |
} |
| 713 |
RETURN(); |
| 714 |
} |
| 715 |
|
| 716 |
PPC_OP(subfco) |
| 717 |
{
|
| 718 |
T2 = T0; |
| 719 |
T0 = T1 - T0; |
| 720 |
if (T0 <= T1) {
|
| 721 |
xer_ca = 1;
|
| 722 |
} else {
|
| 723 |
xer_ca = 0;
|
| 724 |
} |
| 725 |
if (((~T2) ^ T1 ^ (-1)) & ((~T2) ^ T0) & (1 << 31)) { |
| 726 |
xer_so = 1;
|
| 727 |
xer_ov = 1;
|
| 728 |
} else {
|
| 729 |
xer_ov = 0;
|
| 730 |
} |
| 731 |
RETURN(); |
| 732 |
} |
| 733 |
|
| 734 |
/* substract from extended */
|
| 735 |
/* candidate for helper (too long) */
|
| 736 |
PPC_OP(subfe) |
| 737 |
{
|
| 738 |
T0 = T1 + ~T0 + xer_ca; |
| 739 |
if (T0 < T1 || (xer_ca == 1 && T0 == T1)) { |
| 740 |
xer_ca = 1;
|
| 741 |
} else {
|
| 742 |
xer_ca = 0;
|
| 743 |
} |
| 744 |
RETURN(); |
| 745 |
} |
| 746 |
|
| 747 |
PPC_OP(subfeo) |
| 748 |
{
|
| 749 |
T2 = T0; |
| 750 |
T0 = T1 + ~T0 + xer_ca; |
| 751 |
if ((~T2 ^ T1 ^ (-1)) & (~T2 ^ T0) & (1 << 31)) { |
| 752 |
xer_so = 1;
|
| 753 |
xer_ov = 1;
|
| 754 |
} else {
|
| 755 |
xer_ov = 0;
|
| 756 |
} |
| 757 |
if (T0 < T1 || (xer_ca == 1 && T0 == T1)) { |
| 758 |
xer_ca = 1;
|
| 759 |
} else {
|
| 760 |
xer_ca = 0;
|
| 761 |
} |
| 762 |
RETURN(); |
| 763 |
} |
| 764 |
|
| 765 |
/* substract from immediate carrying */
|
| 766 |
PPC_OP(subfic) |
| 767 |
{
|
| 768 |
T0 = PARAM(1) + ~T0 + 1; |
| 769 |
if (T0 <= PARAM(1)) { |
| 770 |
xer_ca = 1;
|
| 771 |
} else {
|
| 772 |
xer_ca = 0;
|
| 773 |
} |
| 774 |
RETURN(); |
| 775 |
} |
| 776 |
|
| 777 |
/* substract from minus one extended */
|
| 778 |
PPC_OP(subfme) |
| 779 |
{
|
| 780 |
T0 = ~T0 + xer_ca - 1;
|
| 781 |
|
| 782 |
if (T0 != -1) |
| 783 |
xer_ca = 1;
|
| 784 |
RETURN(); |
| 785 |
} |
| 786 |
|
| 787 |
PPC_OP(subfmeo) |
| 788 |
{
|
| 789 |
T1 = T0; |
| 790 |
T0 = ~T0 + xer_ca - 1;
|
| 791 |
if (~T1 & (~T1 ^ T0) & (1 << 31)) { |
| 792 |
xer_so = 1;
|
| 793 |
xer_ov = 1;
|
| 794 |
} else {
|
| 795 |
xer_ov = 0;
|
| 796 |
} |
| 797 |
if (T1 != -1) |
| 798 |
xer_ca = 1;
|
| 799 |
RETURN(); |
| 800 |
} |
| 801 |
|
| 802 |
/* substract from zero extended */
|
| 803 |
PPC_OP(subfze) |
| 804 |
{
|
| 805 |
T1 = ~T0; |
| 806 |
T0 = T1 + xer_ca; |
| 807 |
if (T0 < T1) {
|
| 808 |
xer_ca = 1;
|
| 809 |
} else {
|
| 810 |
xer_ca = 0;
|
| 811 |
} |
| 812 |
RETURN(); |
| 813 |
} |
| 814 |
|
| 815 |
PPC_OP(subfzeo) |
| 816 |
{
|
| 817 |
T1 = T0; |
| 818 |
T0 = ~T0 + xer_ca; |
| 819 |
if ((~T1 ^ (-1)) & ((~T1) ^ T0) & (1 << 31)) { |
| 820 |
xer_ov = 1;
|
| 821 |
xer_so = 1;
|
| 822 |
} else {
|
| 823 |
xer_ov = 0;
|
| 824 |
} |
| 825 |
if (T0 < ~T1) {
|
| 826 |
xer_ca = 1;
|
| 827 |
} else {
|
| 828 |
xer_ca = 0;
|
| 829 |
} |
| 830 |
RETURN(); |
| 831 |
} |
| 832 |
|
| 833 |
/*** Integer comparison ***/
|
| 834 |
/* compare */
|
| 835 |
PPC_OP(cmp) |
| 836 |
{
|
| 837 |
if (Ts0 < Ts1) {
|
| 838 |
T0 = 0x08;
|
| 839 |
} else if (Ts0 > Ts1) { |
| 840 |
T0 = 0x04;
|
| 841 |
} else {
|
| 842 |
T0 = 0x02;
|
| 843 |
} |
| 844 |
RETURN(); |
| 845 |
} |
| 846 |
|
| 847 |
/* compare immediate */
|
| 848 |
PPC_OP(cmpi) |
| 849 |
{
|
| 850 |
if (Ts0 < SPARAM(1)) { |
| 851 |
T0 = 0x08;
|
| 852 |
} else if (Ts0 > SPARAM(1)) { |
| 853 |
T0 = 0x04;
|
| 854 |
} else {
|
| 855 |
T0 = 0x02;
|
| 856 |
} |
| 857 |
RETURN(); |
| 858 |
} |
| 859 |
|
| 860 |
/* compare logical */
|
| 861 |
PPC_OP(cmpl) |
| 862 |
{
|
| 863 |
if (T0 < T1) {
|
| 864 |
T0 = 0x08;
|
| 865 |
} else if (T0 > T1) { |
| 866 |
T0 = 0x04;
|
| 867 |
} else {
|
| 868 |
T0 = 0x02;
|
| 869 |
} |
| 870 |
RETURN(); |
| 871 |
} |
| 872 |
|
| 873 |
/* compare logical immediate */
|
| 874 |
PPC_OP(cmpli) |
| 875 |
{
|
| 876 |
if (T0 < PARAM(1)) { |
| 877 |
T0 = 0x08;
|
| 878 |
} else if (T0 > PARAM(1)) { |
| 879 |
T0 = 0x04;
|
| 880 |
} else {
|
| 881 |
T0 = 0x02;
|
| 882 |
} |
| 883 |
RETURN(); |
| 884 |
} |
| 885 |
|
| 886 |
/*** Integer logical ***/
|
| 887 |
/* and */
|
| 888 |
PPC_OP(and) |
| 889 |
{
|
| 890 |
T0 &= T1; |
| 891 |
RETURN(); |
| 892 |
} |
| 893 |
|
| 894 |
/* andc */
|
| 895 |
PPC_OP(andc) |
| 896 |
{
|
| 897 |
T0 &= ~T1; |
| 898 |
RETURN(); |
| 899 |
} |
| 900 |
|
| 901 |
/* andi. */
|
| 902 |
PPC_OP(andi_) |
| 903 |
{
|
| 904 |
T0 &= PARAM(1);
|
| 905 |
RETURN(); |
| 906 |
} |
| 907 |
|
| 908 |
/* count leading zero */
|
| 909 |
PPC_OP(cntlzw) |
| 910 |
{
|
| 911 |
T1 = T0; |
| 912 |
for (T0 = 32; T1 > 0; T0--) |
| 913 |
T1 = T1 >> 1;
|
| 914 |
RETURN(); |
| 915 |
} |
| 916 |
|
| 917 |
/* eqv */
|
| 918 |
PPC_OP(eqv) |
| 919 |
{
|
| 920 |
T0 = ~(T0 ^ T1); |
| 921 |
RETURN(); |
| 922 |
} |
| 923 |
|
| 924 |
/* extend sign byte */
|
| 925 |
PPC_OP(extsb) |
| 926 |
{
|
| 927 |
Ts0 = s_ext8(Ts0); |
| 928 |
RETURN(); |
| 929 |
} |
| 930 |
|
| 931 |
/* extend sign half word */
|
| 932 |
PPC_OP(extsh) |
| 933 |
{
|
| 934 |
Ts0 = s_ext16(Ts0); |
| 935 |
RETURN(); |
| 936 |
} |
| 937 |
|
| 938 |
/* nand */
|
| 939 |
PPC_OP(nand) |
| 940 |
{
|
| 941 |
T0 = ~(T0 & T1); |
| 942 |
RETURN(); |
| 943 |
} |
| 944 |
|
| 945 |
/* nor */
|
| 946 |
PPC_OP(nor) |
| 947 |
{
|
| 948 |
T0 = ~(T0 | T1); |
| 949 |
RETURN(); |
| 950 |
} |
| 951 |
|
| 952 |
/* or */
|
| 953 |
PPC_OP(or) |
| 954 |
{
|
| 955 |
T0 |= T1; |
| 956 |
RETURN(); |
| 957 |
} |
| 958 |
|
| 959 |
/* orc */
|
| 960 |
PPC_OP(orc) |
| 961 |
{
|
| 962 |
T0 |= ~T1; |
| 963 |
RETURN(); |
| 964 |
} |
| 965 |
|
| 966 |
/* ori */
|
| 967 |
PPC_OP(ori) |
| 968 |
{
|
| 969 |
T0 |= PARAM(1);
|
| 970 |
RETURN(); |
| 971 |
} |
| 972 |
|
| 973 |
/* xor */
|
| 974 |
PPC_OP(xor) |
| 975 |
{
|
| 976 |
T0 ^= T1; |
| 977 |
RETURN(); |
| 978 |
} |
| 979 |
|
| 980 |
/* xori */
|
| 981 |
PPC_OP(xori) |
| 982 |
{
|
| 983 |
T0 ^= PARAM(1);
|
| 984 |
RETURN(); |
| 985 |
} |
| 986 |
|
| 987 |
/*** Integer rotate ***/
|
| 988 |
/* rotate left word immediate then mask insert */
|
| 989 |
PPC_OP(rlwimi) |
| 990 |
{
|
| 991 |
T0 = rotl(T0, PARAM(1) & PARAM(2)) | (T0 & PARAM(3)); |
| 992 |
RETURN(); |
| 993 |
} |
| 994 |
|
| 995 |
/* rotate left immediate then and with mask insert */
|
| 996 |
PPC_OP(rotlwi) |
| 997 |
{
|
| 998 |
T0 = rotl(T0, PARAM(1));
|
| 999 |
RETURN(); |
| 1000 |
} |
| 1001 |
|
| 1002 |
PPC_OP(slwi) |
| 1003 |
{
|
| 1004 |
T0 = T0 << PARAM(1);
|
| 1005 |
RETURN(); |
| 1006 |
} |
| 1007 |
|
| 1008 |
PPC_OP(srwi) |
| 1009 |
{
|
| 1010 |
T0 = T0 >> PARAM(1);
|
| 1011 |
RETURN(); |
| 1012 |
} |
| 1013 |
|
| 1014 |
/* rotate left word then and with mask insert */
|
| 1015 |
PPC_OP(rlwinm) |
| 1016 |
{
|
| 1017 |
T0 = rotl(T0, PARAM(1)) & PARAM(2); |
| 1018 |
RETURN(); |
| 1019 |
} |
| 1020 |
|
| 1021 |
PPC_OP(rotl) |
| 1022 |
{
|
| 1023 |
T0 = rotl(T0, T1); |
| 1024 |
RETURN(); |
| 1025 |
} |
| 1026 |
|
| 1027 |
PPC_OP(rlwnm) |
| 1028 |
{
|
| 1029 |
T0 = rotl(T0, T1) & PARAM(1);
|
| 1030 |
RETURN(); |
| 1031 |
} |
| 1032 |
|
| 1033 |
/*** Integer shift ***/
|
| 1034 |
/* shift left word */
|
| 1035 |
PPC_OP(slw) |
| 1036 |
{
|
| 1037 |
if (T1 & 0x20) { |
| 1038 |
T0 = 0;
|
| 1039 |
} else {
|
| 1040 |
T0 = T0 << T1; |
| 1041 |
} |
| 1042 |
RETURN(); |
| 1043 |
} |
| 1044 |
|
| 1045 |
/* shift right algebraic word */
|
| 1046 |
PPC_OP(sraw) |
| 1047 |
{
|
| 1048 |
Ts0 = do_sraw(Ts0, T1); |
| 1049 |
RETURN(); |
| 1050 |
} |
| 1051 |
|
| 1052 |
/* shift right algebraic word immediate */
|
| 1053 |
PPC_OP(srawi) |
| 1054 |
{
|
| 1055 |
Ts1 = Ts0; |
| 1056 |
Ts0 = Ts0 >> PARAM(1);
|
| 1057 |
if (Ts1 < 0 && (Ts1 & PARAM(2)) != 0) { |
| 1058 |
xer_ca = 1;
|
| 1059 |
} else {
|
| 1060 |
xer_ca = 0;
|
| 1061 |
} |
| 1062 |
RETURN(); |
| 1063 |
} |
| 1064 |
|
| 1065 |
/* shift right word */
|
| 1066 |
PPC_OP(srw) |
| 1067 |
{
|
| 1068 |
if (T1 & 0x20) { |
| 1069 |
T0 = 0;
|
| 1070 |
} else {
|
| 1071 |
T0 = T0 >> T1; |
| 1072 |
} |
| 1073 |
RETURN(); |
| 1074 |
} |
| 1075 |
|
| 1076 |
/*** Floating-Point arithmetic ***/
|
| 1077 |
|
| 1078 |
/*** Floating-Point multiply-and-add ***/
|
| 1079 |
|
| 1080 |
/*** Floating-Point round & convert ***/
|
| 1081 |
|
| 1082 |
/*** Floating-Point compare ***/
|
| 1083 |
|
| 1084 |
/*** Floating-Point status & ctrl register ***/
|
| 1085 |
|
| 1086 |
/*** Integer load ***/
|
| 1087 |
#define ld16x(x) s_ext16(ld16(x))
|
| 1088 |
#define PPC_ILD_OPX(name, op) \
|
| 1089 |
PPC_OP(l##name##x_z) \ |
| 1090 |
{ \
|
| 1091 |
T1 = op(T0); \ |
| 1092 |
RETURN(); \ |
| 1093 |
} \ |
| 1094 |
PPC_OP(l##name##x) \ |
| 1095 |
{ \
|
| 1096 |
T0 += T1; \ |
| 1097 |
T1 = op(T0); \ |
| 1098 |
RETURN(); \ |
| 1099 |
} |
| 1100 |
|
| 1101 |
#define PPC_ILD_OP(name, op) \
|
| 1102 |
PPC_OP(l##name##_z) \ |
| 1103 |
{ \
|
| 1104 |
T1 = op(SPARAM(1)); \
|
| 1105 |
RETURN(); \ |
| 1106 |
} \ |
| 1107 |
PPC_OP(l##name) \ |
| 1108 |
{ \
|
| 1109 |
T0 += SPARAM(1); \
|
| 1110 |
T1 = op(T0); \ |
| 1111 |
RETURN(); \ |
| 1112 |
} \ |
| 1113 |
PPC_ILD_OPX(name, op) |
| 1114 |
|
| 1115 |
PPC_ILD_OP(bz, ld8); |
| 1116 |
PPC_ILD_OP(ha, ld16x); |
| 1117 |
PPC_ILD_OP(hz, ld16); |
| 1118 |
PPC_ILD_OP(wz, ld32); |
| 1119 |
|
| 1120 |
/*** Integer store ***/
|
| 1121 |
#define PPC_IST_OPX(name, op) \
|
| 1122 |
PPC_OP(st##name##x_z) \ |
| 1123 |
{ \
|
| 1124 |
op(T0, T1); \ |
| 1125 |
RETURN(); \ |
| 1126 |
} \ |
| 1127 |
PPC_OP(st##name##x) \ |
| 1128 |
{ \
|
| 1129 |
T0 += T1; \ |
| 1130 |
op(T0, T2); \ |
| 1131 |
RETURN(); \ |
| 1132 |
} |
| 1133 |
|
| 1134 |
#define PPC_IST_OP(name, op) \
|
| 1135 |
PPC_OP(st##name##_z) \ |
| 1136 |
{ \
|
| 1137 |
op(SPARAM(1), T0); \
|
| 1138 |
RETURN(); \ |
| 1139 |
} \ |
| 1140 |
PPC_OP(st##name) \ |
| 1141 |
{ \
|
| 1142 |
T0 += SPARAM(1); \
|
| 1143 |
op(T0, T1); \ |
| 1144 |
RETURN(); \ |
| 1145 |
} \ |
| 1146 |
PPC_IST_OPX(name, op); |
| 1147 |
|
| 1148 |
PPC_IST_OP(b, st8); |
| 1149 |
PPC_IST_OP(h, st16); |
| 1150 |
PPC_IST_OP(w, st32); |
| 1151 |
|
| 1152 |
/*** Integer load and store with byte reverse ***/
|
| 1153 |
PPC_ILD_OPX(hbr, ld16r); |
| 1154 |
PPC_ILD_OPX(wbr, ld32r); |
| 1155 |
PPC_IST_OPX(hbr, st16r); |
| 1156 |
PPC_IST_OPX(wbr, st32r); |
| 1157 |
|
| 1158 |
/*** Integer load and store multiple ***/
|
| 1159 |
PPC_OP(lmw) |
| 1160 |
{
|
| 1161 |
do_lmw(PARAM(1), SPARAM(2) + T0); |
| 1162 |
RETURN(); |
| 1163 |
} |
| 1164 |
|
| 1165 |
PPC_OP(stmw) |
| 1166 |
{
|
| 1167 |
do_stmw(PARAM(1), SPARAM(2) + T0); |
| 1168 |
RETURN(); |
| 1169 |
} |
| 1170 |
|
| 1171 |
/*** Integer load and store strings ***/
|
| 1172 |
PPC_OP(lswi) |
| 1173 |
{
|
| 1174 |
do_lsw(PARAM(1), PARAM(2), T0); |
| 1175 |
RETURN(); |
| 1176 |
} |
| 1177 |
|
| 1178 |
PPC_OP(lswx) |
| 1179 |
{
|
| 1180 |
do_lsw(PARAM(1), T0, T1 + T2);
|
| 1181 |
RETURN(); |
| 1182 |
} |
| 1183 |
|
| 1184 |
PPC_OP(stswi_z) |
| 1185 |
{
|
| 1186 |
do_stsw(PARAM(1), PARAM(2), 0); |
| 1187 |
RETURN(); |
| 1188 |
} |
| 1189 |
|
| 1190 |
PPC_OP(stswi) |
| 1191 |
{
|
| 1192 |
do_stsw(PARAM(1), PARAM(2), T0); |
| 1193 |
RETURN(); |
| 1194 |
} |
| 1195 |
|
| 1196 |
PPC_OP(stswx_z) |
| 1197 |
{
|
| 1198 |
do_stsw(PARAM(1), T0, T1);
|
| 1199 |
RETURN(); |
| 1200 |
} |
| 1201 |
|
| 1202 |
PPC_OP(stswx) |
| 1203 |
{
|
| 1204 |
do_stsw(PARAM(1), T0, T1 + T2);
|
| 1205 |
RETURN(); |
| 1206 |
} |
| 1207 |
|
| 1208 |
/* SPR */
|
| 1209 |
PPC_OP(load_spr) |
| 1210 |
{
|
| 1211 |
T0 = regs->spr[PARAM(1)];
|
| 1212 |
} |
| 1213 |
|
| 1214 |
PPC_OP(store_spr) |
| 1215 |
{
|
| 1216 |
regs->spr[PARAM(1)] = T0;
|
| 1217 |
} |
| 1218 |
|
| 1219 |
/* FPSCR */
|
| 1220 |
PPC_OP(load_fpscr) |
| 1221 |
{
|
| 1222 |
T0 = do_load_fpscr(); |
| 1223 |
} |
| 1224 |
|
| 1225 |
PPC_OP(store_fpscr) |
| 1226 |
{
|
| 1227 |
do_store_fpscr(PARAM(1), T0);
|
| 1228 |
} |
| 1229 |
|
| 1230 |
/*** Floating-point store ***/
|
| 1231 |
|
| 1232 |
static inline uint32_t dtos(uint64_t f) |
| 1233 |
{
|
| 1234 |
unsigned int e, m, s; |
| 1235 |
e = (((f >> 52) & 0x7ff) - 1022) + 126; |
| 1236 |
s = (f >> 63);
|
| 1237 |
m = (f >> 29);
|
| 1238 |
return (s << 31) | (e << 23) | m; |
| 1239 |
} |
| 1240 |
|
| 1241 |
static inline uint64_t stod(uint32_t f) |
| 1242 |
{
|
| 1243 |
unsigned int e, m, s; |
| 1244 |
e = ((f >> 23) & 0xff) - 126 + 1022; |
| 1245 |
s = f >> 31;
|
| 1246 |
m = f & ((1 << 23) - 1); |
| 1247 |
return ((uint64_t)s << 63) | ((uint64_t)e << 52) | ((uint64_t)m << 29); |
| 1248 |
} |
| 1249 |
|
| 1250 |
PPC_OP(stfd_z_FT0) |
| 1251 |
{
|
| 1252 |
st64(SPARAM(1), FT0);
|
| 1253 |
} |
| 1254 |
|
| 1255 |
PPC_OP(stfd_FT0) |
| 1256 |
{
|
| 1257 |
T0 += SPARAM(1);
|
| 1258 |
st64(T0, FT0); |
| 1259 |
} |
| 1260 |
|
| 1261 |
PPC_OP(stfdx_z_FT0) |
| 1262 |
{
|
| 1263 |
st64(T0, FT0); |
| 1264 |
} |
| 1265 |
|
| 1266 |
PPC_OP(stfdx_FT0) |
| 1267 |
{
|
| 1268 |
T0 += T1; |
| 1269 |
st64(T0, FT0); |
| 1270 |
} |
| 1271 |
|
| 1272 |
|
| 1273 |
PPC_OP(stfs_z_FT0) |
| 1274 |
{
|
| 1275 |
st32(SPARAM(1), dtos(FT0));
|
| 1276 |
} |
| 1277 |
|
| 1278 |
PPC_OP(stfs_FT0) |
| 1279 |
{
|
| 1280 |
T0 += SPARAM(1);
|
| 1281 |
st32(T0, dtos(FT0)); |
| 1282 |
} |
| 1283 |
|
| 1284 |
PPC_OP(stfsx_z_FT0) |
| 1285 |
{
|
| 1286 |
st32(T0, dtos(FT0)); |
| 1287 |
} |
| 1288 |
|
| 1289 |
PPC_OP(stfsx_FT0) |
| 1290 |
{
|
| 1291 |
T0 += T1; |
| 1292 |
st32(T0, dtos(FT0)); |
| 1293 |
} |
| 1294 |
|
| 1295 |
/*** Floating-point load ***/
|
| 1296 |
PPC_OP(lfd_z_FT0) |
| 1297 |
{
|
| 1298 |
FT0 = ld64(SPARAM(1));
|
| 1299 |
} |
| 1300 |
|
| 1301 |
PPC_OP(lfd_FT0) |
| 1302 |
{
|
| 1303 |
T0 += SPARAM(1);
|
| 1304 |
FT0 = ld64(T0); |
| 1305 |
} |
| 1306 |
|
| 1307 |
PPC_OP(lfdx_z_FT0) |
| 1308 |
{
|
| 1309 |
FT0 = ld64(T0); |
| 1310 |
} |
| 1311 |
|
| 1312 |
PPC_OP(lfdx_FT0) |
| 1313 |
{
|
| 1314 |
T0 += T1; |
| 1315 |
FT0 = ld64(T0); |
| 1316 |
} |
| 1317 |
|
| 1318 |
PPC_OP(lfs_z_FT0) |
| 1319 |
{
|
| 1320 |
FT0 = stod(ld32(SPARAM(1)));
|
| 1321 |
} |
| 1322 |
|
| 1323 |
PPC_OP(lfs_FT0) |
| 1324 |
{
|
| 1325 |
T0 += SPARAM(1);
|
| 1326 |
FT0 = stod(ld32(T0)); |
| 1327 |
} |
| 1328 |
|
| 1329 |
PPC_OP(lfsx_z_FT0) |
| 1330 |
{
|
| 1331 |
FT0 = stod(ld32(T0)); |
| 1332 |
} |
| 1333 |
|
| 1334 |
PPC_OP(lfsx_FT0) |
| 1335 |
{
|
| 1336 |
T0 += T1; |
| 1337 |
FT0 = stod(ld32(T0)); |
| 1338 |
} |