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/*
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* PowerPC emulation micro-operations for qemu.
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*
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* Copyright (c) 2003-2005 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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//#define DEBUG_OP
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#include "config.h" |
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#include "exec.h" |
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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 FT1 (env->ft1)
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#define FT2 (env->ft2)
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#define PPC_OP(name) void glue(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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#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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#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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#define REG 6 |
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#include "op_template.h" |
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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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#define REG 9 |
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#include "op_template.h" |
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#define REG 10 |
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#include "op_template.h" |
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#define REG 11 |
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#include "op_template.h" |
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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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#define REG 15 |
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#include "op_template.h" |
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#define REG 16 |
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#include "op_template.h" |
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#define REG 17 |
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#include "op_template.h" |
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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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/* PowerPC 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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tmp |= xer_ov; |
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env->crf[0] = tmp;
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RETURN(); |
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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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env->crf[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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env->crf[0] = 0x04 | xer_ov; |
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RETURN(); |
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} |
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|
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/* Set Rc1 (for floating point arithmetic) */
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PPC_OP(set_Rc1) |
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{
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env->crf[1] = regs->fpscr[7]; |
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RETURN(); |
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} |
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/* Constants load */
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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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|
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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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/* Generate exceptions */
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PPC_OP(raise_exception_err) |
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{
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do_raise_exception_err(PARAM(1), PARAM(2)); |
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} |
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PPC_OP(raise_exception) |
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{
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do_raise_exception(PARAM(1));
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} |
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PPC_OP(update_nip) |
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{
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env->nip = PARAM(1);
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} |
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PPC_OP(debug) |
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{
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env->nip = PARAM(1);
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#if defined (DEBUG_OP)
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dump_state(); |
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#endif
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do_raise_exception(EXCP_DEBUG); |
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RETURN(); |
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} |
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/* Segment registers load and store with immediate index */
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PPC_OP(load_srin) |
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{
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T0 = regs->sr[T1 >> 28];
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RETURN(); |
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} |
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|
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PPC_OP(store_srin) |
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{
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do_store_sr(env, ((uint32_t)T1 >> 28), T0);
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RETURN(); |
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} |
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|
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PPC_OP(load_sdr1) |
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{
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T0 = regs->sdr1; |
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RETURN(); |
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} |
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|
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PPC_OP(store_sdr1) |
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{
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do_store_sdr1(env, T0); |
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RETURN(); |
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} |
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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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/* Load/store special registers */
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PPC_OP(load_cr) |
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{
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T0 = do_load_cr(env); |
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RETURN(); |
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} |
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PPC_OP(store_cr) |
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{
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do_store_cr(env, T0, PARAM(1));
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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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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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T1 = 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(env); |
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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(env, T0); |
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RETURN(); |
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} |
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PPC_OP(load_msr) |
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{
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T0 = do_load_msr(env); |
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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(env, T0); |
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RETURN(); |
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} |
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|
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/* SPR */
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PPC_OP(load_spr) |
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{
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T0 = regs->spr[PARAM(1)];
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RETURN(); |
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} |
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|
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PPC_OP(store_spr) |
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{
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regs->spr[PARAM(1)] = T0;
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RETURN(); |
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} |
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|
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PPC_OP(load_lr) |
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{
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T0 = regs->lr; |
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RETURN(); |
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} |
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|
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PPC_OP(store_lr) |
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{
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regs->lr = T0; |
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RETURN(); |
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} |
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|
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PPC_OP(load_ctr) |
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{
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T0 = regs->ctr; |
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RETURN(); |
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} |
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|
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PPC_OP(store_ctr) |
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{
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regs->ctr = T0; |
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RETURN(); |
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} |
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|
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PPC_OP(load_tbl) |
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{
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T0 = cpu_ppc_load_tbl(regs); |
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RETURN(); |
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} |
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|
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PPC_OP(load_tbu) |
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{
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T0 = cpu_ppc_load_tbu(regs); |
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RETURN(); |
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} |
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|
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PPC_OP(store_tbl) |
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{
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cpu_ppc_store_tbl(regs, T0); |
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RETURN(); |
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} |
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|
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PPC_OP(store_tbu) |
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{
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cpu_ppc_store_tbu(regs, T0); |
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RETURN(); |
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} |
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|
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PPC_OP(load_decr) |
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{
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T0 = cpu_ppc_load_decr(regs); |
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} |
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|
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PPC_OP(store_decr) |
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{
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cpu_ppc_store_decr(regs, T0); |
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RETURN(); |
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} |
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|
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PPC_OP(load_ibat) |
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{
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T0 = regs->IBAT[PARAM(1)][PARAM(2)]; |
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} |
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|
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void op_store_ibatu (void) |
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{
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do_store_ibatu(env, PARAM1, T0); |
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RETURN(); |
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} |
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|
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void op_store_ibatl (void) |
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{
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#if 1 |
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env->IBAT[1][PARAM1] = T0;
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#else
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do_store_ibatl(env, PARAM1, T0); |
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#endif
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RETURN(); |
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} |
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|
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PPC_OP(load_dbat) |
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{
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T0 = regs->DBAT[PARAM(1)][PARAM(2)]; |
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} |
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|
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void op_store_dbatu (void) |
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{
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do_store_dbatu(env, PARAM1, T0); |
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RETURN(); |
| 406 |
} |
| 407 |
|
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void op_store_dbatl (void) |
| 409 |
{
|
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#if 1 |
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env->DBAT[1][PARAM1] = T0;
|
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#else
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do_store_dbatl(env, PARAM1, T0); |
| 414 |
#endif
|
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RETURN(); |
| 416 |
} |
| 417 |
|
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/* FPSCR */
|
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PPC_OP(load_fpscr) |
| 420 |
{
|
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FT0 = do_load_fpscr(env); |
| 422 |
RETURN(); |
| 423 |
} |
| 424 |
|
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PPC_OP(store_fpscr) |
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{
|
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do_store_fpscr(env, FT0, PARAM1); |
| 428 |
RETURN(); |
| 429 |
} |
| 430 |
|
| 431 |
PPC_OP(reset_scrfx) |
| 432 |
{
|
| 433 |
regs->fpscr[7] &= ~0x8; |
| 434 |
RETURN(); |
| 435 |
} |
| 436 |
|
| 437 |
/* crf operations */
|
| 438 |
PPC_OP(getbit_T0) |
| 439 |
{
|
| 440 |
T0 = (T0 >> PARAM(1)) & 1; |
| 441 |
RETURN(); |
| 442 |
} |
| 443 |
|
| 444 |
PPC_OP(getbit_T1) |
| 445 |
{
|
| 446 |
T1 = (T1 >> PARAM(1)) & 1; |
| 447 |
RETURN(); |
| 448 |
} |
| 449 |
|
| 450 |
PPC_OP(setcrfbit) |
| 451 |
{
|
| 452 |
T1 = (T1 & PARAM(1)) | (T0 << PARAM(2)); |
| 453 |
RETURN(); |
| 454 |
} |
| 455 |
|
| 456 |
/* Branch */
|
| 457 |
#define EIP regs->nip
|
| 458 |
|
| 459 |
PPC_OP(setlr) |
| 460 |
{
|
| 461 |
regs->lr = PARAM1; |
| 462 |
} |
| 463 |
|
| 464 |
PPC_OP(b) |
| 465 |
{
|
| 466 |
JUMP_TB(b1, PARAM1, 0, PARAM2);
|
| 467 |
} |
| 468 |
|
| 469 |
PPC_OP(b_T1) |
| 470 |
{
|
| 471 |
regs->nip = T1 & ~3;
|
| 472 |
} |
| 473 |
|
| 474 |
PPC_OP(btest) |
| 475 |
{
|
| 476 |
if (T0) {
|
| 477 |
JUMP_TB(btest, PARAM1, 0, PARAM2);
|
| 478 |
} else {
|
| 479 |
JUMP_TB(btest, PARAM1, 1, PARAM3);
|
| 480 |
} |
| 481 |
RETURN(); |
| 482 |
} |
| 483 |
|
| 484 |
PPC_OP(btest_T1) |
| 485 |
{
|
| 486 |
if (T0) {
|
| 487 |
regs->nip = T1 & ~3;
|
| 488 |
} else {
|
| 489 |
regs->nip = PARAM1; |
| 490 |
} |
| 491 |
RETURN(); |
| 492 |
} |
| 493 |
|
| 494 |
PPC_OP(movl_T1_ctr) |
| 495 |
{
|
| 496 |
T1 = regs->ctr; |
| 497 |
} |
| 498 |
|
| 499 |
PPC_OP(movl_T1_lr) |
| 500 |
{
|
| 501 |
T1 = regs->lr; |
| 502 |
} |
| 503 |
|
| 504 |
/* tests with result in T0 */
|
| 505 |
|
| 506 |
PPC_OP(test_ctr) |
| 507 |
{
|
| 508 |
T0 = regs->ctr; |
| 509 |
} |
| 510 |
|
| 511 |
PPC_OP(test_ctr_true) |
| 512 |
{
|
| 513 |
T0 = (regs->ctr != 0 && (T0 & PARAM(1)) != 0); |
| 514 |
} |
| 515 |
|
| 516 |
PPC_OP(test_ctr_false) |
| 517 |
{
|
| 518 |
T0 = (regs->ctr != 0 && (T0 & PARAM(1)) == 0); |
| 519 |
} |
| 520 |
|
| 521 |
PPC_OP(test_ctrz) |
| 522 |
{
|
| 523 |
T0 = (regs->ctr == 0);
|
| 524 |
} |
| 525 |
|
| 526 |
PPC_OP(test_ctrz_true) |
| 527 |
{
|
| 528 |
T0 = (regs->ctr == 0 && (T0 & PARAM(1)) != 0); |
| 529 |
} |
| 530 |
|
| 531 |
PPC_OP(test_ctrz_false) |
| 532 |
{
|
| 533 |
T0 = (regs->ctr == 0 && (T0 & PARAM(1)) == 0); |
| 534 |
} |
| 535 |
|
| 536 |
PPC_OP(test_true) |
| 537 |
{
|
| 538 |
T0 = (T0 & PARAM(1));
|
| 539 |
} |
| 540 |
|
| 541 |
PPC_OP(test_false) |
| 542 |
{
|
| 543 |
T0 = ((T0 & PARAM(1)) == 0); |
| 544 |
} |
| 545 |
|
| 546 |
/* CTR maintenance */
|
| 547 |
PPC_OP(dec_ctr) |
| 548 |
{
|
| 549 |
regs->ctr--; |
| 550 |
RETURN(); |
| 551 |
} |
| 552 |
|
| 553 |
/*** Integer arithmetic ***/
|
| 554 |
/* add */
|
| 555 |
PPC_OP(add) |
| 556 |
{
|
| 557 |
T0 += T1; |
| 558 |
RETURN(); |
| 559 |
} |
| 560 |
|
| 561 |
PPC_OP(addo) |
| 562 |
{
|
| 563 |
T2 = T0; |
| 564 |
T0 += T1; |
| 565 |
if ((T2 ^ T1 ^ (-1)) & (T2 ^ T0) & (1 << 31)) { |
| 566 |
xer_so = 1;
|
| 567 |
xer_ov = 1;
|
| 568 |
} else {
|
| 569 |
xer_ov = 0;
|
| 570 |
} |
| 571 |
RETURN(); |
| 572 |
} |
| 573 |
|
| 574 |
/* add carrying */
|
| 575 |
PPC_OP(addc) |
| 576 |
{
|
| 577 |
T2 = T0; |
| 578 |
T0 += T1; |
| 579 |
if (T0 < T2) {
|
| 580 |
xer_ca = 1;
|
| 581 |
} else {
|
| 582 |
xer_ca = 0;
|
| 583 |
} |
| 584 |
RETURN(); |
| 585 |
} |
| 586 |
|
| 587 |
PPC_OP(addco) |
| 588 |
{
|
| 589 |
T2 = T0; |
| 590 |
T0 += T1; |
| 591 |
if (T0 < T2) {
|
| 592 |
xer_ca = 1;
|
| 593 |
} else {
|
| 594 |
xer_ca = 0;
|
| 595 |
} |
| 596 |
if ((T2 ^ T1 ^ (-1)) & (T2 ^ T0) & (1 << 31)) { |
| 597 |
xer_so = 1;
|
| 598 |
xer_ov = 1;
|
| 599 |
} else {
|
| 600 |
xer_ov = 0;
|
| 601 |
} |
| 602 |
RETURN(); |
| 603 |
} |
| 604 |
|
| 605 |
/* add extended */
|
| 606 |
/* candidate for helper (too long) */
|
| 607 |
PPC_OP(adde) |
| 608 |
{
|
| 609 |
T2 = T0; |
| 610 |
T0 += T1 + xer_ca; |
| 611 |
if (T0 < T2 || (xer_ca == 1 && T0 == T2)) { |
| 612 |
xer_ca = 1;
|
| 613 |
} else {
|
| 614 |
xer_ca = 0;
|
| 615 |
} |
| 616 |
RETURN(); |
| 617 |
} |
| 618 |
|
| 619 |
PPC_OP(addeo) |
| 620 |
{
|
| 621 |
T2 = T0; |
| 622 |
T0 += T1 + xer_ca; |
| 623 |
if (T0 < T2 || (xer_ca == 1 && T0 == T2)) { |
| 624 |
xer_ca = 1;
|
| 625 |
} else {
|
| 626 |
xer_ca = 0;
|
| 627 |
} |
| 628 |
if ((T2 ^ T1 ^ (-1)) & (T2 ^ T0) & (1 << 31)) { |
| 629 |
xer_so = 1;
|
| 630 |
xer_ov = 1;
|
| 631 |
} else {
|
| 632 |
xer_ov = 0;
|
| 633 |
} |
| 634 |
RETURN(); |
| 635 |
} |
| 636 |
|
| 637 |
/* add immediate */
|
| 638 |
PPC_OP(addi) |
| 639 |
{
|
| 640 |
T0 += PARAM(1);
|
| 641 |
RETURN(); |
| 642 |
} |
| 643 |
|
| 644 |
/* add immediate carrying */
|
| 645 |
PPC_OP(addic) |
| 646 |
{
|
| 647 |
T1 = T0; |
| 648 |
T0 += PARAM(1);
|
| 649 |
if (T0 < T1) {
|
| 650 |
xer_ca = 1;
|
| 651 |
} else {
|
| 652 |
xer_ca = 0;
|
| 653 |
} |
| 654 |
RETURN(); |
| 655 |
} |
| 656 |
|
| 657 |
/* add to minus one extended */
|
| 658 |
PPC_OP(addme) |
| 659 |
{
|
| 660 |
T1 = T0; |
| 661 |
T0 += xer_ca + (-1);
|
| 662 |
if (T1 != 0) |
| 663 |
xer_ca = 1;
|
| 664 |
RETURN(); |
| 665 |
} |
| 666 |
|
| 667 |
PPC_OP(addmeo) |
| 668 |
{
|
| 669 |
T1 = T0; |
| 670 |
T0 += xer_ca + (-1);
|
| 671 |
if (T1 & (T1 ^ T0) & (1 << 31)) { |
| 672 |
xer_so = 1;
|
| 673 |
xer_ov = 1;
|
| 674 |
} else {
|
| 675 |
xer_ov = 0;
|
| 676 |
} |
| 677 |
if (T1 != 0) |
| 678 |
xer_ca = 1;
|
| 679 |
RETURN(); |
| 680 |
} |
| 681 |
|
| 682 |
/* add to zero extended */
|
| 683 |
PPC_OP(addze) |
| 684 |
{
|
| 685 |
T1 = T0; |
| 686 |
T0 += xer_ca; |
| 687 |
if (T0 < T1) {
|
| 688 |
xer_ca = 1;
|
| 689 |
} else {
|
| 690 |
xer_ca = 0;
|
| 691 |
} |
| 692 |
RETURN(); |
| 693 |
} |
| 694 |
|
| 695 |
PPC_OP(addzeo) |
| 696 |
{
|
| 697 |
T1 = T0; |
| 698 |
T0 += xer_ca; |
| 699 |
if ((T1 ^ (-1)) & (T1 ^ T0) & (1 << 31)) { |
| 700 |
xer_so = 1;
|
| 701 |
xer_ov = 1;
|
| 702 |
} else {
|
| 703 |
xer_ov = 0;
|
| 704 |
} |
| 705 |
if (T0 < T1) {
|
| 706 |
xer_ca = 1;
|
| 707 |
} else {
|
| 708 |
xer_ca = 0;
|
| 709 |
} |
| 710 |
RETURN(); |
| 711 |
} |
| 712 |
|
| 713 |
/* divide word */
|
| 714 |
/* candidate for helper (too long) */
|
| 715 |
PPC_OP(divw) |
| 716 |
{
|
| 717 |
if ((Ts0 == INT32_MIN && Ts1 == -1) || Ts1 == 0) { |
| 718 |
T0 = (int32_t)((-1) * (T0 >> 31)); |
| 719 |
} else {
|
| 720 |
T0 = (Ts0 / Ts1); |
| 721 |
} |
| 722 |
RETURN(); |
| 723 |
} |
| 724 |
|
| 725 |
PPC_OP(divwo) |
| 726 |
{
|
| 727 |
if ((Ts0 == INT32_MIN && Ts1 == -1) || Ts1 == 0) { |
| 728 |
xer_so = 1;
|
| 729 |
xer_ov = 1;
|
| 730 |
T0 = (-1) * (T0 >> 31); |
| 731 |
} else {
|
| 732 |
xer_ov = 0;
|
| 733 |
T0 = (Ts0 / Ts1); |
| 734 |
} |
| 735 |
RETURN(); |
| 736 |
} |
| 737 |
|
| 738 |
/* divide word unsigned */
|
| 739 |
PPC_OP(divwu) |
| 740 |
{
|
| 741 |
if (T1 == 0) { |
| 742 |
T0 = 0;
|
| 743 |
} else {
|
| 744 |
T0 /= T1; |
| 745 |
} |
| 746 |
RETURN(); |
| 747 |
} |
| 748 |
|
| 749 |
PPC_OP(divwuo) |
| 750 |
{
|
| 751 |
if (T1 == 0) { |
| 752 |
xer_so = 1;
|
| 753 |
xer_ov = 1;
|
| 754 |
T0 = 0;
|
| 755 |
} else {
|
| 756 |
xer_ov = 0;
|
| 757 |
T0 /= T1; |
| 758 |
} |
| 759 |
RETURN(); |
| 760 |
} |
| 761 |
|
| 762 |
/* multiply high word */
|
| 763 |
PPC_OP(mulhw) |
| 764 |
{
|
| 765 |
T0 = ((int64_t)Ts0 * (int64_t)Ts1) >> 32;
|
| 766 |
RETURN(); |
| 767 |
} |
| 768 |
|
| 769 |
/* multiply high word unsigned */
|
| 770 |
PPC_OP(mulhwu) |
| 771 |
{
|
| 772 |
T0 = ((uint64_t)T0 * (uint64_t)T1) >> 32;
|
| 773 |
RETURN(); |
| 774 |
} |
| 775 |
|
| 776 |
/* multiply low immediate */
|
| 777 |
PPC_OP(mulli) |
| 778 |
{
|
| 779 |
T0 = (Ts0 * SPARAM(1));
|
| 780 |
RETURN(); |
| 781 |
} |
| 782 |
|
| 783 |
/* multiply low word */
|
| 784 |
PPC_OP(mullw) |
| 785 |
{
|
| 786 |
T0 *= T1; |
| 787 |
RETURN(); |
| 788 |
} |
| 789 |
|
| 790 |
PPC_OP(mullwo) |
| 791 |
{
|
| 792 |
int64_t res = (int64_t)Ts0 * (int64_t)Ts1; |
| 793 |
|
| 794 |
if ((int32_t)res != res) {
|
| 795 |
xer_ov = 1;
|
| 796 |
xer_so = 1;
|
| 797 |
} else {
|
| 798 |
xer_ov = 0;
|
| 799 |
} |
| 800 |
T0 = (int32_t)res; |
| 801 |
RETURN(); |
| 802 |
} |
| 803 |
|
| 804 |
/* negate */
|
| 805 |
PPC_OP(neg) |
| 806 |
{
|
| 807 |
if (T0 != 0x80000000) { |
| 808 |
T0 = -Ts0; |
| 809 |
} |
| 810 |
RETURN(); |
| 811 |
} |
| 812 |
|
| 813 |
PPC_OP(nego) |
| 814 |
{
|
| 815 |
if (T0 == 0x80000000) { |
| 816 |
xer_ov = 1;
|
| 817 |
xer_so = 1;
|
| 818 |
} else {
|
| 819 |
xer_ov = 0;
|
| 820 |
T0 = -Ts0; |
| 821 |
} |
| 822 |
RETURN(); |
| 823 |
} |
| 824 |
|
| 825 |
/* substract from */
|
| 826 |
PPC_OP(subf) |
| 827 |
{
|
| 828 |
T0 = T1 - T0; |
| 829 |
RETURN(); |
| 830 |
} |
| 831 |
|
| 832 |
PPC_OP(subfo) |
| 833 |
{
|
| 834 |
T2 = T0; |
| 835 |
T0 = T1 - T0; |
| 836 |
if (((~T2) ^ T1 ^ (-1)) & ((~T2) ^ T0) & (1 << 31)) { |
| 837 |
xer_so = 1;
|
| 838 |
xer_ov = 1;
|
| 839 |
} else {
|
| 840 |
xer_ov = 0;
|
| 841 |
} |
| 842 |
RETURN(); |
| 843 |
} |
| 844 |
|
| 845 |
/* substract from carrying */
|
| 846 |
PPC_OP(subfc) |
| 847 |
{
|
| 848 |
T0 = T1 - T0; |
| 849 |
if (T0 <= T1) {
|
| 850 |
xer_ca = 1;
|
| 851 |
} else {
|
| 852 |
xer_ca = 0;
|
| 853 |
} |
| 854 |
RETURN(); |
| 855 |
} |
| 856 |
|
| 857 |
PPC_OP(subfco) |
| 858 |
{
|
| 859 |
T2 = T0; |
| 860 |
T0 = T1 - T0; |
| 861 |
if (T0 <= T1) {
|
| 862 |
xer_ca = 1;
|
| 863 |
} else {
|
| 864 |
xer_ca = 0;
|
| 865 |
} |
| 866 |
if (((~T2) ^ T1 ^ (-1)) & ((~T2) ^ T0) & (1 << 31)) { |
| 867 |
xer_so = 1;
|
| 868 |
xer_ov = 1;
|
| 869 |
} else {
|
| 870 |
xer_ov = 0;
|
| 871 |
} |
| 872 |
RETURN(); |
| 873 |
} |
| 874 |
|
| 875 |
/* substract from extended */
|
| 876 |
/* candidate for helper (too long) */
|
| 877 |
PPC_OP(subfe) |
| 878 |
{
|
| 879 |
T0 = T1 + ~T0 + xer_ca; |
| 880 |
if (T0 < T1 || (xer_ca == 1 && T0 == T1)) { |
| 881 |
xer_ca = 1;
|
| 882 |
} else {
|
| 883 |
xer_ca = 0;
|
| 884 |
} |
| 885 |
RETURN(); |
| 886 |
} |
| 887 |
|
| 888 |
PPC_OP(subfeo) |
| 889 |
{
|
| 890 |
T2 = T0; |
| 891 |
T0 = T1 + ~T0 + xer_ca; |
| 892 |
if ((~T2 ^ T1 ^ (-1)) & (~T2 ^ T0) & (1 << 31)) { |
| 893 |
xer_so = 1;
|
| 894 |
xer_ov = 1;
|
| 895 |
} else {
|
| 896 |
xer_ov = 0;
|
| 897 |
} |
| 898 |
if (T0 < T1 || (xer_ca == 1 && T0 == T1)) { |
| 899 |
xer_ca = 1;
|
| 900 |
} else {
|
| 901 |
xer_ca = 0;
|
| 902 |
} |
| 903 |
RETURN(); |
| 904 |
} |
| 905 |
|
| 906 |
/* substract from immediate carrying */
|
| 907 |
PPC_OP(subfic) |
| 908 |
{
|
| 909 |
T0 = PARAM(1) + ~T0 + 1; |
| 910 |
if (T0 <= PARAM(1)) { |
| 911 |
xer_ca = 1;
|
| 912 |
} else {
|
| 913 |
xer_ca = 0;
|
| 914 |
} |
| 915 |
RETURN(); |
| 916 |
} |
| 917 |
|
| 918 |
/* substract from minus one extended */
|
| 919 |
PPC_OP(subfme) |
| 920 |
{
|
| 921 |
T0 = ~T0 + xer_ca - 1;
|
| 922 |
|
| 923 |
if (T0 != -1) |
| 924 |
xer_ca = 1;
|
| 925 |
RETURN(); |
| 926 |
} |
| 927 |
|
| 928 |
PPC_OP(subfmeo) |
| 929 |
{
|
| 930 |
T1 = T0; |
| 931 |
T0 = ~T0 + xer_ca - 1;
|
| 932 |
if (~T1 & (~T1 ^ T0) & (1 << 31)) { |
| 933 |
xer_so = 1;
|
| 934 |
xer_ov = 1;
|
| 935 |
} else {
|
| 936 |
xer_ov = 0;
|
| 937 |
} |
| 938 |
if (T1 != -1) |
| 939 |
xer_ca = 1;
|
| 940 |
RETURN(); |
| 941 |
} |
| 942 |
|
| 943 |
/* substract from zero extended */
|
| 944 |
PPC_OP(subfze) |
| 945 |
{
|
| 946 |
T1 = ~T0; |
| 947 |
T0 = T1 + xer_ca; |
| 948 |
if (T0 < T1) {
|
| 949 |
xer_ca = 1;
|
| 950 |
} else {
|
| 951 |
xer_ca = 0;
|
| 952 |
} |
| 953 |
RETURN(); |
| 954 |
} |
| 955 |
|
| 956 |
PPC_OP(subfzeo) |
| 957 |
{
|
| 958 |
T1 = T0; |
| 959 |
T0 = ~T0 + xer_ca; |
| 960 |
if ((~T1 ^ (-1)) & ((~T1) ^ T0) & (1 << 31)) { |
| 961 |
xer_ov = 1;
|
| 962 |
xer_so = 1;
|
| 963 |
} else {
|
| 964 |
xer_ov = 0;
|
| 965 |
} |
| 966 |
if (T0 < ~T1) {
|
| 967 |
xer_ca = 1;
|
| 968 |
} else {
|
| 969 |
xer_ca = 0;
|
| 970 |
} |
| 971 |
RETURN(); |
| 972 |
} |
| 973 |
|
| 974 |
/*** Integer comparison ***/
|
| 975 |
/* compare */
|
| 976 |
PPC_OP(cmp) |
| 977 |
{
|
| 978 |
if (Ts0 < Ts1) {
|
| 979 |
T0 = 0x08;
|
| 980 |
} else if (Ts0 > Ts1) { |
| 981 |
T0 = 0x04;
|
| 982 |
} else {
|
| 983 |
T0 = 0x02;
|
| 984 |
} |
| 985 |
RETURN(); |
| 986 |
} |
| 987 |
|
| 988 |
/* compare immediate */
|
| 989 |
PPC_OP(cmpi) |
| 990 |
{
|
| 991 |
if (Ts0 < SPARAM(1)) { |
| 992 |
T0 = 0x08;
|
| 993 |
} else if (Ts0 > SPARAM(1)) { |
| 994 |
T0 = 0x04;
|
| 995 |
} else {
|
| 996 |
T0 = 0x02;
|
| 997 |
} |
| 998 |
RETURN(); |
| 999 |
} |
| 1000 |
|
| 1001 |
/* compare logical */
|
| 1002 |
PPC_OP(cmpl) |
| 1003 |
{
|
| 1004 |
if (T0 < T1) {
|
| 1005 |
T0 = 0x08;
|
| 1006 |
} else if (T0 > T1) { |
| 1007 |
T0 = 0x04;
|
| 1008 |
} else {
|
| 1009 |
T0 = 0x02;
|
| 1010 |
} |
| 1011 |
RETURN(); |
| 1012 |
} |
| 1013 |
|
| 1014 |
/* compare logical immediate */
|
| 1015 |
PPC_OP(cmpli) |
| 1016 |
{
|
| 1017 |
if (T0 < PARAM(1)) { |
| 1018 |
T0 = 0x08;
|
| 1019 |
} else if (T0 > PARAM(1)) { |
| 1020 |
T0 = 0x04;
|
| 1021 |
} else {
|
| 1022 |
T0 = 0x02;
|
| 1023 |
} |
| 1024 |
RETURN(); |
| 1025 |
} |
| 1026 |
|
| 1027 |
/*** Integer logical ***/
|
| 1028 |
/* and */
|
| 1029 |
PPC_OP(and) |
| 1030 |
{
|
| 1031 |
T0 &= T1; |
| 1032 |
RETURN(); |
| 1033 |
} |
| 1034 |
|
| 1035 |
/* andc */
|
| 1036 |
PPC_OP(andc) |
| 1037 |
{
|
| 1038 |
T0 &= ~T1; |
| 1039 |
RETURN(); |
| 1040 |
} |
| 1041 |
|
| 1042 |
/* andi. */
|
| 1043 |
PPC_OP(andi_) |
| 1044 |
{
|
| 1045 |
T0 &= PARAM(1);
|
| 1046 |
RETURN(); |
| 1047 |
} |
| 1048 |
|
| 1049 |
/* count leading zero */
|
| 1050 |
PPC_OP(cntlzw) |
| 1051 |
{
|
| 1052 |
T1 = T0; |
| 1053 |
for (T0 = 32; T1 > 0; T0--) |
| 1054 |
T1 = T1 >> 1;
|
| 1055 |
RETURN(); |
| 1056 |
} |
| 1057 |
|
| 1058 |
/* eqv */
|
| 1059 |
PPC_OP(eqv) |
| 1060 |
{
|
| 1061 |
T0 = ~(T0 ^ T1); |
| 1062 |
RETURN(); |
| 1063 |
} |
| 1064 |
|
| 1065 |
/* extend sign byte */
|
| 1066 |
PPC_OP(extsb) |
| 1067 |
{
|
| 1068 |
T0 = (int32_t)((int8_t)(Ts0)); |
| 1069 |
RETURN(); |
| 1070 |
} |
| 1071 |
|
| 1072 |
/* extend sign half word */
|
| 1073 |
PPC_OP(extsh) |
| 1074 |
{
|
| 1075 |
T0 = (int32_t)((int16_t)(Ts0)); |
| 1076 |
RETURN(); |
| 1077 |
} |
| 1078 |
|
| 1079 |
/* nand */
|
| 1080 |
PPC_OP(nand) |
| 1081 |
{
|
| 1082 |
T0 = ~(T0 & T1); |
| 1083 |
RETURN(); |
| 1084 |
} |
| 1085 |
|
| 1086 |
/* nor */
|
| 1087 |
PPC_OP(nor) |
| 1088 |
{
|
| 1089 |
T0 = ~(T0 | T1); |
| 1090 |
RETURN(); |
| 1091 |
} |
| 1092 |
|
| 1093 |
/* or */
|
| 1094 |
PPC_OP(or) |
| 1095 |
{
|
| 1096 |
T0 |= T1; |
| 1097 |
RETURN(); |
| 1098 |
} |
| 1099 |
|
| 1100 |
/* orc */
|
| 1101 |
PPC_OP(orc) |
| 1102 |
{
|
| 1103 |
T0 |= ~T1; |
| 1104 |
RETURN(); |
| 1105 |
} |
| 1106 |
|
| 1107 |
/* ori */
|
| 1108 |
PPC_OP(ori) |
| 1109 |
{
|
| 1110 |
T0 |= PARAM(1);
|
| 1111 |
RETURN(); |
| 1112 |
} |
| 1113 |
|
| 1114 |
/* xor */
|
| 1115 |
PPC_OP(xor) |
| 1116 |
{
|
| 1117 |
T0 ^= T1; |
| 1118 |
RETURN(); |
| 1119 |
} |
| 1120 |
|
| 1121 |
/* xori */
|
| 1122 |
PPC_OP(xori) |
| 1123 |
{
|
| 1124 |
T0 ^= PARAM(1);
|
| 1125 |
RETURN(); |
| 1126 |
} |
| 1127 |
|
| 1128 |
/*** Integer rotate ***/
|
| 1129 |
/* rotate left word immediate then mask insert */
|
| 1130 |
PPC_OP(rlwimi) |
| 1131 |
{
|
| 1132 |
T0 = (rotl(T0, PARAM(1)) & PARAM(2)) | (T1 & PARAM(3)); |
| 1133 |
RETURN(); |
| 1134 |
} |
| 1135 |
|
| 1136 |
/* rotate left immediate then and with mask insert */
|
| 1137 |
PPC_OP(rotlwi) |
| 1138 |
{
|
| 1139 |
T0 = rotl(T0, PARAM(1));
|
| 1140 |
RETURN(); |
| 1141 |
} |
| 1142 |
|
| 1143 |
PPC_OP(slwi) |
| 1144 |
{
|
| 1145 |
T0 = T0 << PARAM(1);
|
| 1146 |
RETURN(); |
| 1147 |
} |
| 1148 |
|
| 1149 |
PPC_OP(srwi) |
| 1150 |
{
|
| 1151 |
T0 = T0 >> PARAM(1);
|
| 1152 |
RETURN(); |
| 1153 |
} |
| 1154 |
|
| 1155 |
/* rotate left word then and with mask insert */
|
| 1156 |
PPC_OP(rlwinm) |
| 1157 |
{
|
| 1158 |
T0 = rotl(T0, PARAM(1)) & PARAM(2); |
| 1159 |
RETURN(); |
| 1160 |
} |
| 1161 |
|
| 1162 |
PPC_OP(rotl) |
| 1163 |
{
|
| 1164 |
T0 = rotl(T0, T1); |
| 1165 |
RETURN(); |
| 1166 |
} |
| 1167 |
|
| 1168 |
PPC_OP(rlwnm) |
| 1169 |
{
|
| 1170 |
T0 = rotl(T0, T1) & PARAM(1);
|
| 1171 |
RETURN(); |
| 1172 |
} |
| 1173 |
|
| 1174 |
/*** Integer shift ***/
|
| 1175 |
/* shift left word */
|
| 1176 |
PPC_OP(slw) |
| 1177 |
{
|
| 1178 |
if (T1 & 0x20) { |
| 1179 |
T0 = 0;
|
| 1180 |
} else {
|
| 1181 |
T0 = T0 << T1; |
| 1182 |
} |
| 1183 |
RETURN(); |
| 1184 |
} |
| 1185 |
|
| 1186 |
/* shift right algebraic word */
|
| 1187 |
PPC_OP(sraw) |
| 1188 |
{
|
| 1189 |
do_sraw(); |
| 1190 |
RETURN(); |
| 1191 |
} |
| 1192 |
|
| 1193 |
/* shift right algebraic word immediate */
|
| 1194 |
PPC_OP(srawi) |
| 1195 |
{
|
| 1196 |
T1 = T0; |
| 1197 |
T0 = (Ts0 >> PARAM(1));
|
| 1198 |
if (Ts1 < 0 && (Ts1 & PARAM(2)) != 0) { |
| 1199 |
xer_ca = 1;
|
| 1200 |
} else {
|
| 1201 |
xer_ca = 0;
|
| 1202 |
} |
| 1203 |
RETURN(); |
| 1204 |
} |
| 1205 |
|
| 1206 |
/* shift right word */
|
| 1207 |
PPC_OP(srw) |
| 1208 |
{
|
| 1209 |
if (T1 & 0x20) { |
| 1210 |
T0 = 0;
|
| 1211 |
} else {
|
| 1212 |
T0 = T0 >> T1; |
| 1213 |
} |
| 1214 |
RETURN(); |
| 1215 |
} |
| 1216 |
|
| 1217 |
/*** Floating-Point arithmetic ***/
|
| 1218 |
/* fadd - fadd. */
|
| 1219 |
PPC_OP(fadd) |
| 1220 |
{
|
| 1221 |
FT0 += FT1; |
| 1222 |
RETURN(); |
| 1223 |
} |
| 1224 |
|
| 1225 |
/* fsub - fsub. */
|
| 1226 |
PPC_OP(fsub) |
| 1227 |
{
|
| 1228 |
FT0 -= FT1; |
| 1229 |
RETURN(); |
| 1230 |
} |
| 1231 |
|
| 1232 |
/* fmul - fmul. */
|
| 1233 |
PPC_OP(fmul) |
| 1234 |
{
|
| 1235 |
FT0 *= FT1; |
| 1236 |
RETURN(); |
| 1237 |
} |
| 1238 |
|
| 1239 |
/* fdiv - fdiv. */
|
| 1240 |
void do_fdiv (void); |
| 1241 |
PPC_OP(fdiv) |
| 1242 |
{
|
| 1243 |
do_fdiv(); |
| 1244 |
RETURN(); |
| 1245 |
} |
| 1246 |
|
| 1247 |
/* fsqrt - fsqrt. */
|
| 1248 |
PPC_OP(fsqrt) |
| 1249 |
{
|
| 1250 |
do_fsqrt(); |
| 1251 |
RETURN(); |
| 1252 |
} |
| 1253 |
|
| 1254 |
/* fres - fres. */
|
| 1255 |
PPC_OP(fres) |
| 1256 |
{
|
| 1257 |
do_fres(); |
| 1258 |
RETURN(); |
| 1259 |
} |
| 1260 |
|
| 1261 |
/* frsqrte - frsqrte. */
|
| 1262 |
PPC_OP(frsqrte) |
| 1263 |
{
|
| 1264 |
do_frsqrte(); |
| 1265 |
RETURN(); |
| 1266 |
} |
| 1267 |
|
| 1268 |
/* fsel - fsel. */
|
| 1269 |
PPC_OP(fsel) |
| 1270 |
{
|
| 1271 |
do_fsel(); |
| 1272 |
RETURN(); |
| 1273 |
} |
| 1274 |
|
| 1275 |
/*** Floating-Point multiply-and-add ***/
|
| 1276 |
/* fmadd - fmadd. */
|
| 1277 |
PPC_OP(fmadd) |
| 1278 |
{
|
| 1279 |
FT0 = (FT0 * FT1) + FT2; |
| 1280 |
RETURN(); |
| 1281 |
} |
| 1282 |
|
| 1283 |
/* fmsub - fmsub. */
|
| 1284 |
PPC_OP(fmsub) |
| 1285 |
{
|
| 1286 |
FT0 = (FT0 * FT1) - FT2; |
| 1287 |
RETURN(); |
| 1288 |
} |
| 1289 |
|
| 1290 |
/* fnmadd - fnmadd. - fnmadds - fnmadds. */
|
| 1291 |
PPC_OP(fnmadd) |
| 1292 |
{
|
| 1293 |
do_fnmadd(); |
| 1294 |
RETURN(); |
| 1295 |
} |
| 1296 |
|
| 1297 |
/* fnmsub - fnmsub. */
|
| 1298 |
PPC_OP(fnmsub) |
| 1299 |
{
|
| 1300 |
do_fnmsub(); |
| 1301 |
RETURN(); |
| 1302 |
} |
| 1303 |
|
| 1304 |
/*** Floating-Point round & convert ***/
|
| 1305 |
/* frsp - frsp. */
|
| 1306 |
PPC_OP(frsp) |
| 1307 |
{
|
| 1308 |
FT0 = (float)FT0;
|
| 1309 |
RETURN(); |
| 1310 |
} |
| 1311 |
|
| 1312 |
/* fctiw - fctiw. */
|
| 1313 |
PPC_OP(fctiw) |
| 1314 |
{
|
| 1315 |
do_fctiw(); |
| 1316 |
RETURN(); |
| 1317 |
} |
| 1318 |
|
| 1319 |
/* fctiwz - fctiwz. */
|
| 1320 |
PPC_OP(fctiwz) |
| 1321 |
{
|
| 1322 |
do_fctiwz(); |
| 1323 |
RETURN(); |
| 1324 |
} |
| 1325 |
|
| 1326 |
|
| 1327 |
/*** Floating-Point compare ***/
|
| 1328 |
/* fcmpu */
|
| 1329 |
PPC_OP(fcmpu) |
| 1330 |
{
|
| 1331 |
do_fcmpu(); |
| 1332 |
RETURN(); |
| 1333 |
} |
| 1334 |
|
| 1335 |
/* fcmpo */
|
| 1336 |
PPC_OP(fcmpo) |
| 1337 |
{
|
| 1338 |
do_fcmpo(); |
| 1339 |
RETURN(); |
| 1340 |
} |
| 1341 |
|
| 1342 |
/*** Floating-point move ***/
|
| 1343 |
/* fabs */
|
| 1344 |
void do_fabs (void); |
| 1345 |
PPC_OP(fabs) |
| 1346 |
{
|
| 1347 |
do_fabs(); |
| 1348 |
RETURN(); |
| 1349 |
} |
| 1350 |
|
| 1351 |
/* fnabs */
|
| 1352 |
void do_fnabs (void); |
| 1353 |
PPC_OP(fnabs) |
| 1354 |
{
|
| 1355 |
do_fnabs(); |
| 1356 |
RETURN(); |
| 1357 |
} |
| 1358 |
|
| 1359 |
/* fneg */
|
| 1360 |
PPC_OP(fneg) |
| 1361 |
{
|
| 1362 |
FT0 = -FT0; |
| 1363 |
RETURN(); |
| 1364 |
} |
| 1365 |
|
| 1366 |
/* Load and store */
|
| 1367 |
#define MEMSUFFIX _raw
|
| 1368 |
#include "op_mem.h" |
| 1369 |
#if !defined(CONFIG_USER_ONLY)
|
| 1370 |
#define MEMSUFFIX _user
|
| 1371 |
#include "op_mem.h" |
| 1372 |
|
| 1373 |
#define MEMSUFFIX _kernel
|
| 1374 |
#include "op_mem.h" |
| 1375 |
#endif
|
| 1376 |
|
| 1377 |
/* Special op to check and maybe clear reservation */
|
| 1378 |
PPC_OP(check_reservation) |
| 1379 |
{
|
| 1380 |
do_check_reservation(); |
| 1381 |
RETURN(); |
| 1382 |
} |
| 1383 |
|
| 1384 |
/* Return from interrupt */
|
| 1385 |
PPC_OP(rfi) |
| 1386 |
{
|
| 1387 |
regs->nip = regs->spr[SPR_SRR0] & ~0x00000003;
|
| 1388 |
#if 1 // TRY |
| 1389 |
T0 = regs->spr[SPR_SRR1] & ~0xFFF00000;
|
| 1390 |
#else
|
| 1391 |
T0 = regs->spr[SPR_SRR1] & ~0xFFFF0000;
|
| 1392 |
#endif
|
| 1393 |
do_store_msr(env, T0); |
| 1394 |
do_raise_exception(EXCP_RFI); |
| 1395 |
RETURN(); |
| 1396 |
} |
| 1397 |
|
| 1398 |
/* Trap word */
|
| 1399 |
PPC_OP(tw) |
| 1400 |
{
|
| 1401 |
if ((Ts0 < Ts1 && (PARAM(1) & 0x10)) || |
| 1402 |
(Ts0 > Ts1 && (PARAM(1) & 0x08)) || |
| 1403 |
(Ts0 == Ts1 && (PARAM(1) & 0x04)) || |
| 1404 |
(T0 < T1 && (PARAM(1) & 0x02)) || |
| 1405 |
(T0 > T1 && (PARAM(1) & 0x01))) |
| 1406 |
do_raise_exception_err(EXCP_PROGRAM, EXCP_TRAP); |
| 1407 |
RETURN(); |
| 1408 |
} |
| 1409 |
|
| 1410 |
PPC_OP(twi) |
| 1411 |
{
|
| 1412 |
if ((Ts0 < SPARAM(1) && (PARAM(2) & 0x10)) || |
| 1413 |
(Ts0 > SPARAM(1) && (PARAM(2) & 0x08)) || |
| 1414 |
(Ts0 == SPARAM(1) && (PARAM(2) & 0x04)) || |
| 1415 |
(T0 < (uint32_t)SPARAM(1) && (PARAM(2) & 0x02)) || |
| 1416 |
(T0 > (uint32_t)SPARAM(1) && (PARAM(2) & 0x01))) |
| 1417 |
do_raise_exception_err(EXCP_PROGRAM, EXCP_TRAP); |
| 1418 |
RETURN(); |
| 1419 |
} |
| 1420 |
|
| 1421 |
/* Instruction cache block invalidate */
|
| 1422 |
PPC_OP(icbi) |
| 1423 |
{
|
| 1424 |
do_icbi(); |
| 1425 |
RETURN(); |
| 1426 |
} |
| 1427 |
|
| 1428 |
/* tlbia */
|
| 1429 |
PPC_OP(tlbia) |
| 1430 |
{
|
| 1431 |
do_tlbia(); |
| 1432 |
RETURN(); |
| 1433 |
} |
| 1434 |
|
| 1435 |
/* tlbie */
|
| 1436 |
PPC_OP(tlbie) |
| 1437 |
{
|
| 1438 |
do_tlbie(); |
| 1439 |
RETURN(); |
| 1440 |
} |
| 1441 |
|
| 1442 |
void op_store_pir (void) |
| 1443 |
{
|
| 1444 |
env->spr[SPR_PIR] = T0 & 0x0000000FUL;
|
| 1445 |
RETURN(); |
| 1446 |
} |