[ros-diffs] [evb] 45532: - Fix wrong initialization of different modes and stacks.
evb at svn.reactos.org
evb at svn.reactos.org
Tue Feb 9 19:05:01 CET 2010
Author: evb
Date: Tue Feb 9 19:05:01 2010
New Revision: 45532
URL: http://svn.reactos.org/svn/reactos?rev=45532&view=rev
Log:
- Fix wrong initialization of different modes and stacks.
Modified:
trunk/reactos/ntoskrnl/ke/arm/boot.s
Modified: trunk/reactos/ntoskrnl/ke/arm/boot.s
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/arm/boot.s?rev=45532&r1=45531&r2=45532&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/ke/arm/boot.s [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ke/arm/boot.s [iso-8859-1] Tue Feb 9 19:05:01 2010
@@ -14,48 +14,24 @@
NESTED_ENTRY KiSystemStartup
PROLOG_END KiSystemStartup
- /* Put us in FIQ mode */
- mrs r3, cpsr
- orr r3, r1, #CPSR_FIQ_MODE
- msr cpsr, r3
-
- /* Set FIQ stack and registers */
+ /* Put us in FIQ mode, set IRQ stack */
+ msr cpsr_c, #CPSR_FIQ_MODE
ldr sp, [a1, #LpbInterruptStack]
- mov r8, #0
- mov r9, #0
- mov r10, #0
/* Repeat for IRQ mode */
- mrs r3, cpsr
- orr r3, r1, #CPSR_IRQ_MODE
- msr cpsr, r3
+ msr cpsr_c, #CPSR_IRQ_MODE
ldr sp, [a1, #LpbInterruptStack]
- mov r8, #0
- mov r9, #0
- mov r10, #0
- /* Put us in ABORT mode */
- mrs r3, cpsr
- orr r3, r1, #CPSR_ABORT_MODE
- msr cpsr, r3
-
- /* Set panic stack */
+ /* Put us in ABORT mode and set the panic stack */
+ msr cpsr_c, #CPSR_ABORT_MODE
ldr sp, [a1, #LpbPanicStack]
- /* Put us in UND (Undefined) mode */
- mrs r3, cpsr
- orr r3, r1, #CPSR_UND_MODE
- msr cpsr, r3
-
- /* Set panic stack */
+ /* Repeat for UND (Undefined) mode */
+ msr cpsr_c, #CPSR_UND_MODE
ldr sp, [a1, #LpbPanicStack]
- /* Put us into SVC (Supervisor) mode */
- mrs r3, cpsr
- orr r3, r1, #CPSR_SVC_MODE
- msr cpsr, r3
-
- /* Switch to boot kernel stack */
+ /* Put us into SVC (Supervisor) mode and set the kernel stack */
+ msr cpsr_c, #CPSR_SVC_MODE
ldr sp, [a1, #LpbKernelStack]
/* Go to C code */
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