diff --git a/Source/DSPSpy/tests/external_interrupt_delay_long.ds b/Source/DSPSpy/tests/external_interrupt_delay_long.ds
index 887a20f270..9c1f3e67b7 100644
--- a/Source/DSPSpy/tests/external_interrupt_delay_long.ds
+++ b/Source/DSPSpy/tests/external_interrupt_delay_long.ds
@@ -58,7 +58,7 @@ external_irq:
 	CALL send_back
 	RTI
 
-; Expected result ($AX0.H (send_back num), $AR0, and $SR):
+; Expected result ($AX0.H (send_back num), $AX1.H, and $SR):
 ; 1, 1, 2024 (start)
 ; 3, 2, 2025 (in interrupt handler - note that the interrupt happens after one LRI instruction)
 ; 2, 6, 3825 (the remaining LRI instructions execute)
diff --git a/Source/DSPSpy/tests/external_interrupt_delay_long_short.ds b/Source/DSPSpy/tests/external_interrupt_delay_long_short.ds
index 79777ff3bc..7bd032fc0f 100644
--- a/Source/DSPSpy/tests/external_interrupt_delay_long_short.ds
+++ b/Source/DSPSpy/tests/external_interrupt_delay_long_short.ds
@@ -58,7 +58,7 @@ external_irq:
 	CALL send_back
 	RTI
 
-; Expected result ($AX0.H (send_back num), $AR0, and $SR):
+; Expected result ($AX0.H (send_back num), $AX1.H, and $SR):
 ; 1, 1, 2024 (start)
 ; 3, 2, 2025 (in interrupt handler - note that the interrupt happens after only one LRI instruction)
 ; 2, 6, 3825 (the remaining LRIS instructions execute)
diff --git a/Source/DSPSpy/tests/external_interrupt_delay_short.ds b/Source/DSPSpy/tests/external_interrupt_delay_short.ds
index e44385f8ff..36deb099cd 100644
--- a/Source/DSPSpy/tests/external_interrupt_delay_short.ds
+++ b/Source/DSPSpy/tests/external_interrupt_delay_short.ds
@@ -58,7 +58,7 @@ external_irq:
 	CALL send_back
 	RTI
 
-; Expected result ($AX0.H (send_back num), $AR0, and $SR):
+; Expected result ($AX0.H (send_back num), $AX1.H, and $SR):
 ; 1, 1, 2024 (start)
 ; 3, 3, 2025 (in interrupt handler - note that the interrupt happens after two LRIS instructions)
 ; 2, 6, 3825 (the remaining LRIS instructions execute)
diff --git a/Source/DSPSpy/tests/external_interrupt_delay_short_long.ds b/Source/DSPSpy/tests/external_interrupt_delay_short_long.ds
index 2e231ed6d8..c8b708e440 100644
--- a/Source/DSPSpy/tests/external_interrupt_delay_short_long.ds
+++ b/Source/DSPSpy/tests/external_interrupt_delay_short_long.ds
@@ -58,7 +58,7 @@ external_irq:
 	CALL send_back
 	RTI
 
-; Expected result ($AX0.H (send_back num), $AR0, and $SR):
+; Expected result ($AX0.H (send_back num), $AX1.H, and $SR):
 ; 1, 1, 2024 (start)
 ; 3, 3, 2025 (in interrupt handler - note that the interrupt happens after both the LRIS and LRI instructions)
 ; 2, 6, 3825 (the remaining LRIS instructions execute)
diff --git a/Source/DSPSpy/tests/external_interrupt_no_delay.ds b/Source/DSPSpy/tests/external_interrupt_no_delay.ds
index 8ea7bc1218..cad971190b 100644
--- a/Source/DSPSpy/tests/external_interrupt_no_delay.ds
+++ b/Source/DSPSpy/tests/external_interrupt_no_delay.ds
@@ -60,7 +60,7 @@ external_irq:
 	CALL send_back
 	RTI
 
-; Expected result ($AX0.H (send_back num), $AR0, and $SR):
+; Expected result ($AX0.H (send_back num), $AX1.H, and $SR):
 ; 1, 1, 2024 (start)
 ; 3, 1, 2020 (in interrupt handler)
 ; 2, 6, 3825 (end)