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// Copyright 2012 Michael Kang, 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <assert.h>
#include "common/logging/log.h"
#include "core/arm/skyeye_common/armdefs.h"
void switch_mode(arm_core_t *core, uint32_t mode) {
if (core->Mode == mode)
return;
if (mode != USERBANK) {
switch (core->Mode) {
case USER32MODE:
core->Reg_usr[0] = core->Reg[13];
core->Reg_usr[1] = core->Reg[14];
break;
case IRQ32MODE:
core->Reg_irq[0] = core->Reg[13];
core->Reg_irq[1] = core->Reg[14];
core->Spsr[IRQBANK] = core->Spsr_copy;
break;
case SVC32MODE:
core->Reg_svc[0] = core->Reg[13];
core->Reg_svc[1] = core->Reg[14];
core->Spsr[SVCBANK] = core->Spsr_copy;
break;
case ABORT32MODE:
core->Reg_abort[0] = core->Reg[13];
core->Reg_abort[1] = core->Reg[14];
core->Spsr[ABORTBANK] = core->Spsr_copy;
break;
case UNDEF32MODE:
core->Reg_undef[0] = core->Reg[13];
core->Reg_undef[1] = core->Reg[14];
core->Spsr[UNDEFBANK] = core->Spsr_copy;
break;
case FIQ32MODE:
core->Reg_firq[0] = core->Reg[13];
core->Reg_firq[1] = core->Reg[14];
core->Spsr[FIQBANK] = core->Spsr_copy;
break;
}
switch (mode) {
case USER32MODE:
core->Reg[13] = core->Reg_usr[0];
core->Reg[14] = core->Reg_usr[1];
core->Bank = USERBANK;
break;
case IRQ32MODE:
core->Reg[13] = core->Reg_irq[0];
core->Reg[14] = core->Reg_irq[1];
core->Spsr_copy = core->Spsr[IRQBANK];
core->Bank = IRQBANK;
break;
case SVC32MODE:
core->Reg[13] = core->Reg_svc[0];
core->Reg[14] = core->Reg_svc[1];
core->Spsr_copy = core->Spsr[SVCBANK];
core->Bank = SVCBANK;
break;
case ABORT32MODE:
core->Reg[13] = core->Reg_abort[0];
core->Reg[14] = core->Reg_abort[1];
core->Spsr_copy = core->Spsr[ABORTBANK];
core->Bank = ABORTBANK;
break;
case UNDEF32MODE:
core->Reg[13] = core->Reg_undef[0];
core->Reg[14] = core->Reg_undef[1];
core->Spsr_copy = core->Spsr[UNDEFBANK];
core->Bank = UNDEFBANK;
break;
case FIQ32MODE:
core->Reg[13] = core->Reg_firq[0];
core->Reg[14] = core->Reg_firq[1];
core->Spsr_copy = core->Spsr[FIQBANK];
core->Bank = FIQBANK;
break;
}
core->Mode = mode;
} else {
LOG_CRITICAL(Core_ARM11, "user mode");
exit(-2);
}
}
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