2003-11-23 15:55:54 +01:00
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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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#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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2003-11-23 17:58:08 +01:00
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#define FT0 (env->ft0)
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2003-11-23 15:55:54 +01:00
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#define PPC_OP(name) void op_##name(void)
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2003-11-23 17:58:08 +01:00
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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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#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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#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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#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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2003-11-23 15:55:54 +01:00
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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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/* 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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/* 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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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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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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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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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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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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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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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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/* 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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/* 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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/* 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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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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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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/* 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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#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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#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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#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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#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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#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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/* 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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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));
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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)
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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));
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PPC_OP_BCCTR(ctr_false, (regs->CTR != 0 && (T0 & PARAM(2)) == 0));
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PPC_OP_BCCTR(ctrz, (regs->CTR == 0));
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PPC_OP_BCCTR(ctrz_true, (regs->CTR == 0 && (T0 & PARAM(2)) != 0));
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PPC_OP_BCCTR(ctrz_false, (regs->CTR == 0 && (T0 & PARAM(2)) == 0));
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PPC_OP_BCCTR(true, ((T0 & PARAM(2)) != 0));
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PPC_OP_BCCTR(false, ((T0 & PARAM(2)) == 0));
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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)
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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));
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PPC_OP_BCLR(ctr_false, (regs->CTR != 0 && (T0 & PARAM(2)) == 0));
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PPC_OP_BCLR(ctrz, (regs->CTR == 0));
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|
PPC_OP_BCLR(ctrz_true, (regs->CTR == 0 && (T0 & PARAM(2)) != 0));
|
|
|
|
PPC_OP_BCLR(ctrz_false, (regs->CTR == 0 && (T0 & PARAM(2)) == 0));
|
|
|
|
PPC_OP_BCLR(true, ((T0 & PARAM(2)) != 0));
|
|
|
|
PPC_OP_BCLR(false, ((T0 & PARAM(2)) == 0));
|
|
|
|
|
|
|
|
/* CTR maintenance */
|
|
|
|
PPC_OP(dec_ctr)
|
|
|
|
{
|
|
|
|
regs->CTR--;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/*** Integer arithmetic ***/
|
|
|
|
/* add */
|
|
|
|
PPC_OP(add)
|
|
|
|
{
|
|
|
|
T0 += T1;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(addo)
|
|
|
|
{
|
|
|
|
T2 = T0;
|
|
|
|
T0 += T1;
|
|
|
|
if ((T2 ^ T1 ^ (-1)) & (T2 ^ T0) & (1 << 31)) {
|
|
|
|
xer_so = 1;
|
|
|
|
xer_ov = 1;
|
|
|
|
} else {
|
|
|
|
xer_ov = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* add carrying */
|
|
|
|
PPC_OP(addc)
|
|
|
|
{
|
|
|
|
T2 = T0;
|
|
|
|
T0 += T1;
|
|
|
|
if (T0 < T2) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(addco)
|
|
|
|
{
|
|
|
|
T2 = T0;
|
|
|
|
T0 += T1;
|
|
|
|
if (T0 < T2) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
if ((T2 ^ T1 ^ (-1)) & (T2 ^ T0) & (1 << 31)) {
|
|
|
|
xer_so = 1;
|
|
|
|
xer_ov = 1;
|
|
|
|
} else {
|
|
|
|
xer_ov = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* add extended */
|
|
|
|
/* candidate for helper (too long) */
|
|
|
|
PPC_OP(adde)
|
|
|
|
{
|
|
|
|
T2 = T0;
|
|
|
|
T0 += T1 + xer_ca;
|
|
|
|
if (T0 < T2 || (xer_ca == 1 && T0 == T2)) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(addeo)
|
|
|
|
{
|
|
|
|
T2 = T0;
|
|
|
|
T0 += T1 + xer_ca;
|
|
|
|
if (T0 < T2 || (xer_ca == 1 && T0 == T2)) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
if ((T2 ^ T1 ^ (-1)) & (T2 ^ T0) & (1 << 31)) {
|
|
|
|
xer_so = 1;
|
|
|
|
xer_ov = 1;
|
|
|
|
} else {
|
|
|
|
xer_ov = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* add immediate */
|
|
|
|
PPC_OP(addi)
|
|
|
|
{
|
|
|
|
T0 += PARAM(1);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* add immediate carrying */
|
|
|
|
PPC_OP(addic)
|
|
|
|
{
|
|
|
|
T1 = T0;
|
|
|
|
T0 += PARAM(1);
|
|
|
|
if (T0 < T1) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* add to minus one extended */
|
|
|
|
PPC_OP(addme)
|
|
|
|
{
|
|
|
|
T1 = T0;
|
|
|
|
T0 += xer_ca + (-1);
|
|
|
|
if (T1 != 0)
|
|
|
|
xer_ca = 1;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(addmeo)
|
|
|
|
{
|
|
|
|
T1 = T0;
|
|
|
|
T0 += xer_ca + (-1);
|
|
|
|
if (T1 & (T1 ^ T0) & (1 << 31)) {
|
|
|
|
xer_so = 1;
|
|
|
|
xer_ov = 1;
|
|
|
|
} else {
|
|
|
|
xer_ov = 0;
|
|
|
|
}
|
|
|
|
if (T1 != 0)
|
|
|
|
xer_ca = 1;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* add to zero extended */
|
|
|
|
PPC_OP(addze)
|
|
|
|
{
|
|
|
|
T1 = T0;
|
|
|
|
T0 += xer_ca;
|
|
|
|
if (T0 < T1) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(addzeo)
|
|
|
|
{
|
|
|
|
T1 = T0;
|
|
|
|
T0 += xer_ca;
|
|
|
|
if ((T1 ^ (-1)) & (T1 ^ T0) & (1 << 31)) {
|
|
|
|
xer_so = 1;
|
|
|
|
xer_ov = 1;
|
|
|
|
} else {
|
|
|
|
xer_ov = 0;
|
|
|
|
}
|
|
|
|
if (T0 < T1) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* divide word */
|
|
|
|
/* candidate for helper (too long) */
|
|
|
|
PPC_OP(divw)
|
|
|
|
{
|
|
|
|
if ((Ts0 == INT32_MIN && Ts1 == -1) || Ts1 == 0) {
|
|
|
|
Ts0 = (-1) * (T0 >> 31);
|
|
|
|
} else {
|
|
|
|
Ts0 /= Ts1;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(divwo)
|
|
|
|
{
|
|
|
|
if ((Ts0 == INT32_MIN && Ts1 == -1) || Ts1 == 0) {
|
|
|
|
xer_so = 1;
|
|
|
|
xer_ov = 1;
|
|
|
|
T0 = (-1) * (T0 >> 31);
|
|
|
|
} else {
|
|
|
|
xer_ov = 0;
|
|
|
|
Ts0 /= Ts1;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* divide word unsigned */
|
|
|
|
PPC_OP(divwu)
|
|
|
|
{
|
|
|
|
if (T1 == 0) {
|
|
|
|
T0 = 0;
|
|
|
|
} else {
|
|
|
|
T0 /= T1;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(divwuo)
|
|
|
|
{
|
|
|
|
if (T1 == 0) {
|
|
|
|
xer_so = 1;
|
|
|
|
xer_ov = 1;
|
|
|
|
T0 = 0;
|
|
|
|
} else {
|
|
|
|
xer_ov = 0;
|
|
|
|
T0 /= T1;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* multiply high word */
|
|
|
|
PPC_OP(mulhw)
|
|
|
|
{
|
|
|
|
Ts0 = ((int64_t)Ts0 * (int64_t)Ts1) >> 32;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* multiply high word unsigned */
|
|
|
|
PPC_OP(mulhwu)
|
|
|
|
{
|
|
|
|
T0 = ((uint64_t)T0 * (uint64_t)T1) >> 32;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* multiply low immediate */
|
|
|
|
PPC_OP(mulli)
|
|
|
|
{
|
|
|
|
Ts0 *= SPARAM(1);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* multiply low word */
|
|
|
|
PPC_OP(mullw)
|
|
|
|
{
|
|
|
|
T0 *= T1;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(mullwo)
|
|
|
|
{
|
|
|
|
int64_t res = (int64_t)Ts0 * (int64_t)Ts1;
|
|
|
|
|
|
|
|
if ((int32_t)res != res) {
|
|
|
|
xer_ov = 1;
|
|
|
|
xer_so = 1;
|
|
|
|
} else {
|
|
|
|
xer_ov = 0;
|
|
|
|
}
|
|
|
|
Ts0 = res;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* negate */
|
|
|
|
PPC_OP(neg)
|
|
|
|
{
|
|
|
|
if (T0 != 0x80000000) {
|
|
|
|
Ts0 = -Ts0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(nego)
|
|
|
|
{
|
|
|
|
if (T0 == 0x80000000) {
|
|
|
|
xer_ov = 1;
|
|
|
|
xer_so = 1;
|
|
|
|
} else {
|
|
|
|
xer_ov = 0;
|
|
|
|
Ts0 = -Ts0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* substract from */
|
|
|
|
PPC_OP(subf)
|
|
|
|
{
|
|
|
|
T0 = T1 - T0;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(subfo)
|
|
|
|
{
|
|
|
|
T2 = T0;
|
|
|
|
T0 = T1 - T0;
|
|
|
|
if (((~T2) ^ T1 ^ (-1)) & ((~T2) ^ T0) & (1 << 31)) {
|
|
|
|
xer_so = 1;
|
|
|
|
xer_ov = 1;
|
|
|
|
} else {
|
|
|
|
xer_ov = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* substract from carrying */
|
|
|
|
PPC_OP(subfc)
|
|
|
|
{
|
|
|
|
T0 = T1 - T0;
|
|
|
|
if (T0 <= T1) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(subfco)
|
|
|
|
{
|
|
|
|
T2 = T0;
|
|
|
|
T0 = T1 - T0;
|
|
|
|
if (T0 <= T1) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
if (((~T2) ^ T1 ^ (-1)) & ((~T2) ^ T0) & (1 << 31)) {
|
|
|
|
xer_so = 1;
|
|
|
|
xer_ov = 1;
|
|
|
|
} else {
|
|
|
|
xer_ov = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* substract from extended */
|
|
|
|
/* candidate for helper (too long) */
|
|
|
|
PPC_OP(subfe)
|
|
|
|
{
|
|
|
|
T0 = T1 + ~T0 + xer_ca;
|
|
|
|
if (T0 < T1 || (xer_ca == 1 && T0 == T1)) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(subfeo)
|
|
|
|
{
|
|
|
|
T2 = T0;
|
|
|
|
T0 = T1 + ~T0 + xer_ca;
|
|
|
|
if ((~T2 ^ T1 ^ (-1)) & (~T2 ^ T0) & (1 << 31)) {
|
|
|
|
xer_so = 1;
|
|
|
|
xer_ov = 1;
|
|
|
|
} else {
|
|
|
|
xer_ov = 0;
|
|
|
|
}
|
|
|
|
if (T0 < T1 || (xer_ca == 1 && T0 == T1)) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* substract from immediate carrying */
|
|
|
|
PPC_OP(subfic)
|
|
|
|
{
|
|
|
|
T0 = PARAM(1) + ~T0 + 1;
|
|
|
|
if (T0 <= PARAM(1)) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* substract from minus one extended */
|
|
|
|
PPC_OP(subfme)
|
|
|
|
{
|
|
|
|
T0 = ~T0 + xer_ca - 1;
|
|
|
|
|
|
|
|
if (T0 != -1)
|
|
|
|
xer_ca = 1;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(subfmeo)
|
|
|
|
{
|
|
|
|
T1 = T0;
|
|
|
|
T0 = ~T0 + xer_ca - 1;
|
|
|
|
if (~T1 & (~T1 ^ T0) & (1 << 31)) {
|
|
|
|
xer_so = 1;
|
|
|
|
xer_ov = 1;
|
|
|
|
} else {
|
|
|
|
xer_ov = 0;
|
|
|
|
}
|
|
|
|
if (T1 != -1)
|
|
|
|
xer_ca = 1;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* substract from zero extended */
|
|
|
|
PPC_OP(subfze)
|
|
|
|
{
|
|
|
|
T1 = ~T0;
|
|
|
|
T0 = T1 + xer_ca;
|
|
|
|
if (T0 < T1) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(subfzeo)
|
|
|
|
{
|
|
|
|
T1 = T0;
|
|
|
|
T0 = ~T0 + xer_ca;
|
|
|
|
if ((~T1 ^ (-1)) & ((~T1) ^ T0) & (1 << 31)) {
|
|
|
|
xer_ov = 1;
|
|
|
|
xer_so = 1;
|
|
|
|
} else {
|
|
|
|
xer_ov = 0;
|
|
|
|
}
|
|
|
|
if (T0 < ~T1) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/*** Integer comparison ***/
|
|
|
|
/* compare */
|
|
|
|
PPC_OP(cmp)
|
|
|
|
{
|
|
|
|
if (Ts0 < Ts1) {
|
|
|
|
T0 = 0x08;
|
|
|
|
} else if (Ts0 > Ts1) {
|
|
|
|
T0 = 0x04;
|
|
|
|
} else {
|
|
|
|
T0 = 0x02;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* compare immediate */
|
|
|
|
PPC_OP(cmpi)
|
|
|
|
{
|
|
|
|
if (Ts0 < SPARAM(1)) {
|
|
|
|
T0 = 0x08;
|
|
|
|
} else if (Ts0 > SPARAM(1)) {
|
|
|
|
T0 = 0x04;
|
|
|
|
} else {
|
|
|
|
T0 = 0x02;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* compare logical */
|
|
|
|
PPC_OP(cmpl)
|
|
|
|
{
|
|
|
|
if (T0 < T1) {
|
|
|
|
T0 = 0x08;
|
|
|
|
} else if (T0 > T1) {
|
|
|
|
T0 = 0x04;
|
|
|
|
} else {
|
|
|
|
T0 = 0x02;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* compare logical immediate */
|
|
|
|
PPC_OP(cmpli)
|
|
|
|
{
|
|
|
|
if (T0 < PARAM(1)) {
|
|
|
|
T0 = 0x08;
|
|
|
|
} else if (T0 > PARAM(1)) {
|
|
|
|
T0 = 0x04;
|
|
|
|
} else {
|
|
|
|
T0 = 0x02;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/*** Integer logical ***/
|
|
|
|
/* and */
|
|
|
|
PPC_OP(and)
|
|
|
|
{
|
|
|
|
T0 &= T1;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* andc */
|
|
|
|
PPC_OP(andc)
|
|
|
|
{
|
|
|
|
T0 &= ~T1;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* andi. */
|
|
|
|
PPC_OP(andi_)
|
|
|
|
{
|
|
|
|
T0 &= PARAM(1);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* count leading zero */
|
|
|
|
PPC_OP(cntlzw)
|
|
|
|
{
|
|
|
|
T1 = T0;
|
|
|
|
for (T0 = 32; T1 > 0; T0--)
|
|
|
|
T1 = T1 >> 1;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* eqv */
|
|
|
|
PPC_OP(eqv)
|
|
|
|
{
|
|
|
|
T0 = ~(T0 ^ T1);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* extend sign byte */
|
|
|
|
PPC_OP(extsb)
|
|
|
|
{
|
|
|
|
Ts0 = s_ext8(Ts0);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* extend sign half word */
|
|
|
|
PPC_OP(extsh)
|
|
|
|
{
|
|
|
|
Ts0 = s_ext16(Ts0);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* nand */
|
|
|
|
PPC_OP(nand)
|
|
|
|
{
|
|
|
|
T0 = ~(T0 & T1);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* nor */
|
|
|
|
PPC_OP(nor)
|
|
|
|
{
|
|
|
|
T0 = ~(T0 | T1);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* or */
|
|
|
|
PPC_OP(or)
|
|
|
|
{
|
|
|
|
T0 |= T1;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* orc */
|
|
|
|
PPC_OP(orc)
|
|
|
|
{
|
|
|
|
T0 |= ~T1;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* ori */
|
|
|
|
PPC_OP(ori)
|
|
|
|
{
|
|
|
|
T0 |= PARAM(1);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* xor */
|
|
|
|
PPC_OP(xor)
|
|
|
|
{
|
|
|
|
T0 ^= T1;
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* xori */
|
|
|
|
PPC_OP(xori)
|
|
|
|
{
|
|
|
|
T0 ^= PARAM(1);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/*** Integer rotate ***/
|
|
|
|
/* rotate left word immediate then mask insert */
|
|
|
|
PPC_OP(rlwimi)
|
|
|
|
{
|
|
|
|
T0 = rotl(T0, PARAM(1) & PARAM(2)) | (T0 & PARAM(3));
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* rotate left immediate then and with mask insert */
|
|
|
|
PPC_OP(rotlwi)
|
|
|
|
{
|
|
|
|
T0 = rotl(T0, PARAM(1));
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(slwi)
|
|
|
|
{
|
|
|
|
T0 = T0 << PARAM(1);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(srwi)
|
|
|
|
{
|
|
|
|
T0 = T0 >> PARAM(1);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* rotate left word then and with mask insert */
|
|
|
|
PPC_OP(rlwinm)
|
|
|
|
{
|
|
|
|
T0 = rotl(T0, PARAM(1)) & PARAM(2);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(rotl)
|
|
|
|
{
|
|
|
|
T0 = rotl(T0, T1);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(rlwnm)
|
|
|
|
{
|
|
|
|
T0 = rotl(T0, T1) & PARAM(1);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/*** Integer shift ***/
|
|
|
|
/* shift left word */
|
|
|
|
PPC_OP(slw)
|
|
|
|
{
|
|
|
|
if (T1 & 0x20) {
|
|
|
|
T0 = 0;
|
|
|
|
} else {
|
|
|
|
T0 = T0 << T1;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* shift right algebraic word */
|
|
|
|
PPC_OP(sraw)
|
|
|
|
{
|
|
|
|
Ts0 = do_sraw(Ts0, T1);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* shift right algebraic word immediate */
|
|
|
|
PPC_OP(srawi)
|
|
|
|
{
|
|
|
|
Ts1 = Ts0;
|
|
|
|
Ts0 = Ts0 >> PARAM(1);
|
|
|
|
if (Ts1 < 0 && (Ts1 & PARAM(2)) != 0) {
|
|
|
|
xer_ca = 1;
|
|
|
|
} else {
|
|
|
|
xer_ca = 0;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* shift right word */
|
|
|
|
PPC_OP(srw)
|
|
|
|
{
|
|
|
|
if (T1 & 0x20) {
|
|
|
|
T0 = 0;
|
|
|
|
} else {
|
|
|
|
T0 = T0 >> T1;
|
|
|
|
}
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/*** Floating-Point arithmetic ***/
|
|
|
|
|
|
|
|
/*** Floating-Point multiply-and-add ***/
|
|
|
|
|
|
|
|
/*** Floating-Point round & convert ***/
|
|
|
|
|
|
|
|
/*** Floating-Point compare ***/
|
|
|
|
|
|
|
|
/*** Floating-Point status & ctrl register ***/
|
|
|
|
|
|
|
|
/*** Integer load ***/
|
|
|
|
#define ld16x(x) s_ext16(ld16(x))
|
|
|
|
#define PPC_ILD_OPX(name, op) \
|
|
|
|
PPC_OP(l##name##x_z) \
|
|
|
|
{ \
|
|
|
|
T1 = op(T0); \
|
|
|
|
RETURN(); \
|
|
|
|
} \
|
|
|
|
PPC_OP(l##name##x) \
|
|
|
|
{ \
|
|
|
|
T0 += T1; \
|
|
|
|
T1 = op(T0); \
|
|
|
|
RETURN(); \
|
|
|
|
}
|
|
|
|
|
|
|
|
#define PPC_ILD_OP(name, op) \
|
|
|
|
PPC_OP(l##name##_z) \
|
|
|
|
{ \
|
|
|
|
T1 = op(SPARAM(1)); \
|
|
|
|
RETURN(); \
|
|
|
|
} \
|
|
|
|
PPC_OP(l##name) \
|
|
|
|
{ \
|
|
|
|
T0 += SPARAM(1); \
|
|
|
|
T1 = op(T0); \
|
|
|
|
RETURN(); \
|
|
|
|
} \
|
|
|
|
PPC_ILD_OPX(name, op)
|
|
|
|
|
|
|
|
PPC_ILD_OP(bz, ld8);
|
|
|
|
PPC_ILD_OP(ha, ld16x);
|
|
|
|
PPC_ILD_OP(hz, ld16);
|
|
|
|
PPC_ILD_OP(wz, ld32);
|
|
|
|
|
|
|
|
/*** Integer store ***/
|
|
|
|
#define PPC_IST_OPX(name, op) \
|
|
|
|
PPC_OP(st##name##x_z) \
|
|
|
|
{ \
|
|
|
|
op(T0, T1); \
|
|
|
|
RETURN(); \
|
|
|
|
} \
|
|
|
|
PPC_OP(st##name##x) \
|
|
|
|
{ \
|
|
|
|
T0 += T1; \
|
|
|
|
op(T0, T2); \
|
|
|
|
RETURN(); \
|
|
|
|
}
|
|
|
|
|
|
|
|
#define PPC_IST_OP(name, op) \
|
|
|
|
PPC_OP(st##name##_z) \
|
|
|
|
{ \
|
|
|
|
op(SPARAM(1), T0); \
|
|
|
|
RETURN(); \
|
|
|
|
} \
|
|
|
|
PPC_OP(st##name) \
|
|
|
|
{ \
|
|
|
|
T0 += SPARAM(1); \
|
|
|
|
op(T0, T1); \
|
|
|
|
RETURN(); \
|
|
|
|
} \
|
|
|
|
PPC_IST_OPX(name, op);
|
|
|
|
|
|
|
|
PPC_IST_OP(b, st8);
|
|
|
|
PPC_IST_OP(h, st16);
|
|
|
|
PPC_IST_OP(w, st32);
|
|
|
|
|
|
|
|
/*** Integer load and store with byte reverse ***/
|
|
|
|
PPC_ILD_OPX(hbr, ld16r);
|
|
|
|
PPC_ILD_OPX(wbr, ld32r);
|
|
|
|
PPC_IST_OPX(hbr, st16r);
|
|
|
|
PPC_IST_OPX(wbr, st32r);
|
|
|
|
|
|
|
|
/*** Integer load and store multiple ***/
|
|
|
|
PPC_OP(lmw)
|
|
|
|
{
|
|
|
|
do_lmw(PARAM(1), SPARAM(2) + T0);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(stmw)
|
|
|
|
{
|
|
|
|
do_stmw(PARAM(1), SPARAM(2) + T0);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
/*** Integer load and store strings ***/
|
|
|
|
PPC_OP(lswi)
|
|
|
|
{
|
|
|
|
do_lsw(PARAM(1), PARAM(2), T0);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(lswx)
|
|
|
|
{
|
|
|
|
do_lsw(PARAM(1), T0, T1 + T2);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(stswi_z)
|
|
|
|
{
|
|
|
|
do_stsw(PARAM(1), PARAM(2), 0);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(stswi)
|
|
|
|
{
|
|
|
|
do_stsw(PARAM(1), PARAM(2), T0);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(stswx_z)
|
|
|
|
{
|
|
|
|
do_stsw(PARAM(1), T0, T1);
|
|
|
|
RETURN();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(stswx)
|
|
|
|
{
|
|
|
|
do_stsw(PARAM(1), T0, T1 + T2);
|
|
|
|
RETURN();
|
|
|
|
}
|
2003-11-23 17:58:08 +01:00
|
|
|
|
|
|
|
/* SPR */
|
|
|
|
PPC_OP(load_spr)
|
|
|
|
{
|
|
|
|
T0 = regs->spr[PARAM(1)];
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(store_spr)
|
|
|
|
{
|
|
|
|
regs->spr[PARAM(1)] = T0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* FPSCR */
|
|
|
|
PPC_OP(load_fpscr)
|
|
|
|
{
|
|
|
|
T0 = do_load_fpscr();
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(store_fpscr)
|
|
|
|
{
|
|
|
|
do_store_fpscr(PARAM(1), T0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*** Floating-point store ***/
|
|
|
|
|
|
|
|
static inline uint32_t dtos(uint64_t f)
|
|
|
|
{
|
|
|
|
unsigned int e, m, s;
|
|
|
|
e = (((f >> 52) & 0x7ff) - 1022) + 126;
|
|
|
|
s = (f >> 63);
|
|
|
|
m = (f >> 29);
|
|
|
|
return (s << 31) | (e << 23) | m;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline uint64_t stod(uint32_t f)
|
|
|
|
{
|
|
|
|
unsigned int e, m, s;
|
|
|
|
e = ((f >> 23) & 0xff) - 126 + 1022;
|
|
|
|
s = f >> 31;
|
|
|
|
m = f & ((1 << 23) - 1);
|
|
|
|
return ((uint64_t)s << 63) | ((uint64_t)e << 52) | ((uint64_t)m << 29);
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(stfd_z_FT0)
|
|
|
|
{
|
|
|
|
st64(SPARAM(1), FT0);
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(stfd_FT0)
|
|
|
|
{
|
|
|
|
T0 += SPARAM(1);
|
|
|
|
st64(T0, FT0);
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(stfdx_z_FT0)
|
|
|
|
{
|
|
|
|
st64(T0, FT0);
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(stfdx_FT0)
|
|
|
|
{
|
|
|
|
T0 += T1;
|
|
|
|
st64(T0, FT0);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
PPC_OP(stfs_z_FT0)
|
|
|
|
{
|
|
|
|
st32(SPARAM(1), dtos(FT0));
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(stfs_FT0)
|
|
|
|
{
|
|
|
|
T0 += SPARAM(1);
|
|
|
|
st32(T0, dtos(FT0));
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(stfsx_z_FT0)
|
|
|
|
{
|
|
|
|
st32(T0, dtos(FT0));
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(stfsx_FT0)
|
|
|
|
{
|
|
|
|
T0 += T1;
|
|
|
|
st32(T0, dtos(FT0));
|
|
|
|
}
|
|
|
|
|
|
|
|
/*** Floating-point load ***/
|
|
|
|
PPC_OP(lfd_z_FT0)
|
|
|
|
{
|
|
|
|
FT0 = ld64(SPARAM(1));
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(lfd_FT0)
|
|
|
|
{
|
|
|
|
T0 += SPARAM(1);
|
|
|
|
FT0 = ld64(T0);
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(lfdx_z_FT0)
|
|
|
|
{
|
|
|
|
FT0 = ld64(T0);
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(lfdx_FT0)
|
|
|
|
{
|
|
|
|
T0 += T1;
|
|
|
|
FT0 = ld64(T0);
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(lfs_z_FT0)
|
|
|
|
{
|
|
|
|
FT0 = stod(ld32(SPARAM(1)));
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(lfs_FT0)
|
|
|
|
{
|
|
|
|
T0 += SPARAM(1);
|
|
|
|
FT0 = stod(ld32(T0));
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(lfsx_z_FT0)
|
|
|
|
{
|
|
|
|
FT0 = stod(ld32(T0));
|
|
|
|
}
|
|
|
|
|
|
|
|
PPC_OP(lfsx_FT0)
|
|
|
|
{
|
|
|
|
T0 += T1;
|
|
|
|
FT0 = stod(ld32(T0));
|
|
|
|
}
|