updated comment fields to make it easier to map interrupts to a position in memory
diff --git a/src/part2/examples/txn/catalog/c430/IMSP430x22xx.xdc b/src/part2/examples/txn/catalog/c430/IMSP430x22xx.xdc
index b6a4ee9..f920ac5 100644
--- a/src/part2/examples/txn/catalog/c430/IMSP430x22xx.xdc
+++ b/src/part2/examples/txn/catalog/c430/IMSP430x22xx.xdc
@@ -45,7 +45,7 @@
         }],
 
         ["INT00", {
-            comment:    "Reserved Vector",
+            comment:    "Reserved Vector (int00)",
             name:       "INT00",
             base:       0xFFE0,
             len:        0x0002,
@@ -54,7 +54,7 @@
         }],
 
         ["INT01", {
-            comment:    "Reserved Vector",
+            comment:    "Reserved Vector (int01)",
             name:       "INT01",
             base:       0xFFE2,
             len:        0x0002,
@@ -63,7 +63,7 @@
         }],
 
         ["IOPORT1", {
-            comment:    "I/O Port P1 Vector",
+            comment:    "I/O Port P1 Vector (int02)",
             name:       "IOPORT1",
             base:       0xFFE4,
             len:        0x0002,
@@ -72,7 +72,7 @@
         }],
 
         ["IOPORT2", {
-            comment:    "I/O Port P2 Vector",
+            comment:    "I/O Port P2 Vector (int03)",
             name:       "IOPORT2",
             base:       0xFFE6,
             len:        0x0002,
@@ -81,7 +81,7 @@
         }],
 
         ["INT04", {
-            comment:    "Reserved Vector",
+            comment:    "Reserved Vector (int04)",
             name:       "INT04",
             base:       0xFFE8,
             len:        0x0002,
@@ -90,7 +90,7 @@
         }],
 
         ["ADC10", {
-            comment:    "ADC10 Vector",
+            comment:    "ADC10 Vector (int05)",
             name:       "ADC10",
             base:       0xFFEA,
             len:        0x0002,
@@ -99,7 +99,7 @@
         }],
 
         ["USCI_TX", {
-            comment:    "USCI_A0/B0 Transmit Vector",
+            comment:    "USCI_A0/B0 Transmit Vector (int06)",
             name:       "USCI_TX",
             base:       0xFFEC,
             len:        0x0002,
@@ -108,7 +108,7 @@
         }],
 
         ["USCI_RX", {
-            comment:    "USCI_A0/B0 Receive Vector",
+            comment:    "USCI_A0/B0 Receive Vector (int07)",
             name:       "USCI_RX",
             base:       0xFFEE,
             len:        0x0002,
@@ -117,7 +117,7 @@
         }],
 
         ["TIMER_A1", {
-            comment:    "Timer_A3 TBCCR1 Vector",
+            comment:    "Timer_A3 TBCCR1 Vector (int08)",
             name:       "TIMER_A1",
             base:       0xFFF0,
             len:        0x0002,
@@ -126,7 +126,7 @@
         }],
 
         ["TIMER_A0", {
-            comment:    "Timer_A3 TBCCR0 Vector",
+            comment:    "Timer_A3 TBCCR0 Vector (int09)",
             name:       "TIMER_A0",
             base:       0xFFF2,
             len:        0x0002,
@@ -135,7 +135,7 @@
         }],
 
         ["INT10", {
-            comment:    "Watchdog Vector",
+            comment:    "Watchdog Vector (int10)",
             name:       "INT10",
             base:       0xFFF4,
             len:        0x0002,
@@ -144,7 +144,7 @@
         }],
 
         ["INT11", {
-            comment:    "Reserved Vector",
+            comment:    "Reserved Vector (int11)",
             name:       "INT11",
             base:       0xFFF6,
             len:        0x0002,
@@ -153,7 +153,7 @@
         }],
 
         ["TIMER_B1", {
-            comment:    "Timer_B3 TBCCR1 Vector",
+            comment:    "Timer_B3 TBCCR1 Vector (int12)",
             name:       "TIMER_B1",
             base:       0xFFF8,
             len:        0x0002,
@@ -162,7 +162,7 @@
         }],
 
         ["TIMER_B0", {
-            comment:    "Timer_B3 TBCCR0 Vector",
+            comment:    "Timer_B3 TBCCR0 Vector (int13)",
             name:       "TIMER_B0",
             base:       0xFFFA,
             len:        0x0002,
@@ -171,7 +171,7 @@
         }],
 
         ["NMI", {
-            comment:    "NMI Vector",
+            comment:    "NMI Vector (int14)",
             name:       "NMI",
             base:       0xFFFC,
             len:        0x0002,
@@ -180,7 +180,7 @@
         }],
 
         ["RESET", {
-            comment:    "Reset Vector",
+            comment:    "Reset Vector (int15)",
             name:       "RESET", 
             base:       0xFFFE,
             len:        0x0002,