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46 lines
1.2 KiB
ArmAsm
46 lines
1.2 KiB
ArmAsm
/*
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* PROJECT: ReactOS Kernel
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* LICENSE: BSD - See COPYING.ARM in the top level directory
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* FILE: ntoskrnl/ke/arm/boot.s
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* PURPOSE: Implements the kernel entry point for ARM machines
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* PROGRAMMERS: ReactOS Portable Systems Group
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*/
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.title "ARM Kernel Entry Point"
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.include "ntoskrnl/include/internal/arm/kxarm.h"
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.include "ntoskrnl/include/internal/arm/ksarm.h"
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TEXTAREA
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NESTED_ENTRY KiSystemStartup
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PROLOG_END KiSystemStartup
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/* Put us in FIQ mode, set IRQ stack */
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b .
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mrs r3, cpsr
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orr r3, r1, #CPSR_FIQ_MODE
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msr cpsr, r3
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ldr sp, [a1, #LpbInterruptStack]
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/* Repeat for IRQ mode */
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msr cpsr_c, #CPSR_IRQ_MODE
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ldr sp, [a1, #LpbInterruptStack]
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/* Put us in ABORT mode and set the panic stack */
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msr cpsr_c, #CPSR_ABORT_MODE
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ldr sp, [a1, #LpbPanicStack]
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/* Repeat for UND (Undefined) mode */
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msr cpsr_c, #CPSR_UND_MODE
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ldr sp, [a1, #LpbPanicStack]
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/* Put us into SVC (Supervisor) mode and set the kernel stack */
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msr cpsr_c, #CPSR_SVC_MODE
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ldr sp, [a1, #LpbKernelStack]
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/* Go to C code */
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b KiInitializeSystem
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ENTRY_END KiSystemStartup
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/* EOF */
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