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-rw-r--r--cpukit/score/macros/rtems/score/isr.inl2
1 files changed, 1 insertions, 1 deletions
diff --git a/cpukit/score/macros/rtems/score/isr.inl b/cpukit/score/macros/rtems/score/isr.inl
index 975487c98b..95f0319396 100644
--- a/cpukit/score/macros/rtems/score/isr.inl
+++ b/cpukit/score/macros/rtems/score/isr.inl
@@ -33,7 +33,7 @@
*/
#define _ISR_Is_vector_number_valid( _vector ) \
- ( (_vector) < CPU_INTERRUPT_NUMBER_OF_VECTORS )
+ ( (_vector) <= CPU_INTERRUPT_MAXIMUM_VECTOR_NUMBER )
/*PAGE
*