diff --git a/envi/archs/ppc/spr.py b/envi/archs/ppc/spr.py
index 57642df7c..37ad83c34 100644
--- a/envi/archs/ppc/spr.py
+++ b/envi/archs/ppc/spr.py
@@ -185,6 +185,10 @@
     562: ("DBCNT", " Debug Counter Register ", 32),
     563: ("DBCR4", " Debug control register 4 ", 32),
     564: ("DBCR5", " Debug control register 5 ", 32),
+    565: ("IAC5", " Instruction address compare 5", 64),
+    566: ("IAC6", " Instruction address compare 6", 64),
+    567: ("IAC7", " Instruction address compare 7", 64),
+    568: ("IAC8", " Instruction address compare 8", 64),
     569: ("DBERC0", " External Debugger Resource Control 0 (alias to ", 32),
     569: ("MCARU", "Machine check address register upper (alias to", 32),
     570: ("MCSRR0", "Machine-check save/restore register 0", 64),