forked from suyu/suyu
120 lines
4.2 KiB
C++
120 lines
4.2 KiB
C++
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/* Copyright (C)
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* 2011 - Michael.Kang blackfin.kang@gmail.com
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; 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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*/
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/**
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* @file arm_dyncom_run.cpp
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* @brief The dyncom run implementation for arm
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* @author Michael.Kang blackfin.kang@gmail.com
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* @version 78.77
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* @date 2011-11-20
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*/
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#include <assert.h>
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#include "core/arm/skyeye_common/armdefs.h"
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void switch_mode(arm_core_t *core, uint32_t mode)
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{
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if (core->Mode == mode) {
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//Mode not changed.
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//printf("mode not changed\n");
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return;
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}
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//printf("%d --->>> %d\n", core->Mode, mode);
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//printf("In %s, Cpsr=0x%x, R15=0x%x, last_pc=0x%x, cpsr=0x%x, spsr_copy=0x%x, icounter=%lld\n", __FUNCTION__, core->Cpsr, core->Reg[15], core->last_pc, core->Cpsr, core->Spsr_copy, core->icounter);
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if (mode != USERBANK) {
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switch (core->Mode) {
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case USER32MODE:
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core->Reg_usr[0] = core->Reg[13];
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core->Reg_usr[1] = core->Reg[14];
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break;
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case IRQ32MODE:
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core->Reg_irq[0] = core->Reg[13];
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core->Reg_irq[1] = core->Reg[14];
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core->Spsr[IRQBANK] = core->Spsr_copy;
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break;
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case SVC32MODE:
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core->Reg_svc[0] = core->Reg[13];
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core->Reg_svc[1] = core->Reg[14];
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core->Spsr[SVCBANK] = core->Spsr_copy;
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break;
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case ABORT32MODE:
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core->Reg_abort[0] = core->Reg[13];
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core->Reg_abort[1] = core->Reg[14];
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core->Spsr[ABORTBANK] = core->Spsr_copy;
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break;
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case UNDEF32MODE:
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core->Reg_undef[0] = core->Reg[13];
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core->Reg_undef[1] = core->Reg[14];
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core->Spsr[UNDEFBANK] = core->Spsr_copy;
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break;
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case FIQ32MODE:
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core->Reg_firq[0] = core->Reg[13];
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core->Reg_firq[1] = core->Reg[14];
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core->Spsr[FIQBANK] = core->Spsr_copy;
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break;
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}
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switch (mode) {
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case USER32MODE:
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core->Reg[13] = core->Reg_usr[0];
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core->Reg[14] = core->Reg_usr[1];
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core->Bank = USERBANK;
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break;
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case IRQ32MODE:
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core->Reg[13] = core->Reg_irq[0];
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core->Reg[14] = core->Reg_irq[1];
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core->Spsr_copy = core->Spsr[IRQBANK];
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core->Bank = IRQBANK;
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break;
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case SVC32MODE:
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core->Reg[13] = core->Reg_svc[0];
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core->Reg[14] = core->Reg_svc[1];
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core->Spsr_copy = core->Spsr[SVCBANK];
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core->Bank = SVCBANK;
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break;
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case ABORT32MODE:
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core->Reg[13] = core->Reg_abort[0];
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core->Reg[14] = core->Reg_abort[1];
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core->Spsr_copy = core->Spsr[ABORTBANK];
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core->Bank = ABORTBANK;
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break;
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case UNDEF32MODE:
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core->Reg[13] = core->Reg_undef[0];
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core->Reg[14] = core->Reg_undef[1];
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core->Spsr_copy = core->Spsr[UNDEFBANK];
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core->Bank = UNDEFBANK;
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break;
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case FIQ32MODE:
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core->Reg[13] = core->Reg_firq[0];
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core->Reg[14] = core->Reg_firq[1];
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core->Spsr_copy = core->Spsr[FIQBANK];
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core->Bank = FIQBANK;
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break;
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}
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core->Mode = mode;
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//printf("In %si end, Cpsr=0x%x, R15=0x%x, last_pc=0x%x, cpsr=0x%x, spsr_copy=0x%x, icounter=%lld\n", __FUNCTION__, core->Cpsr, core->Reg[15], core->last_pc, core->Cpsr, core->Spsr_copy, core->icounter);
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//printf("\n--------------------------------------\n");
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}
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else {
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printf("user mode\n");
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exit(-2);
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}
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}
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