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arm: Avoid duplicate move from CPSR

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Update #4579.
This commit is contained in:
Sebastian Huber
2022-01-17 08:12:15 +01:00
parent 0290e44b28
commit 41a1903dd9
1 changed files with 3 additions and 4 deletions
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cpukit/score/cpu/arm/arm_exc_interrupt.S
+3 -4
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@@ -138,9 +138,6 @@ _ARMV4_Exception_interrupt:
/* Restore stack pointer */
mov sp, NON_VOLATILE_SCRATCH
/* Save CPSR in non-volatile register */
mrs NON_VOLATILE_SCRATCH, CPSR
/* Decrement levels and determine thread dispatch state */
eor r1, r1, r12
sub r12, r12, #1
@@ -159,9 +156,11 @@ _ARMV4_Exception_interrupt:
cmp r1, #0
bne .Lthread_dispatch_done
/* Thread dispatch */
/* Save CPSR in non-volatile register */
mrs NON_VOLATILE_SCRATCH, CPSR
/* Thread dispatch */
.Ldo_thread_dispatch:
/* Set ISR dispatch disable and thread dispatch disable level to one */