reactos/ntoskrnl/ke/arm/boot.s

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/*
* PROJECT: ReactOS Kernel
* LICENSE: BSD - See COPYING.ARM in the top level directory
* FILE: ntoskrnl/ke/arm/boot.s
* PURPOSE: Implements the kernel entry point for ARM machines
* PROGRAMMERS: ReactOS Portable Systems Group
*/
#include <ksarm.h>
TEXTAREA
IMPORT KiInitializeSystem
NESTED_ENTRY KiSystemStartup
PROLOG_END KiSystemStartup
/* Put us in FIQ mode, set IRQ stack */
b .
mrs r3, cpsr
orr r3, r1, #CPSRM_FIQ
//msr cpsr, r3
msr cpsr_fc, r3
ldr sp, [a1, #LpbKernelStack]
/* Repeat for IRQ mode */
mov r3, #CPSRM_INT
msr cpsr_c, r3
ldr sp, [a1, #LpbKernelStack]
/* Put us in ABORT mode and set the panic stack */
mov r3, #CPSRM_ABT
msr cpsr_c, r3
ldr sp, [a1, #LpbKernelStack]
/* Repeat for UDF (Undefined) mode */
mov r3, #CPSRM_UDF
msr cpsr_c, r3
ldr sp, [a1, #LpbKernelStack]
/* Put us into SVC (Supervisor) mode and set the kernel stack */
mov r3, #CPSRM_SVC
msr cpsr_c, r3
ldr sp, [a1, #LpbKernelStack]
/* Go to C code */
b KiInitializeSystem
NESTED_END KiSystemStartup
END
/* EOF */