diff --git a/docs/develop/kernel/arch/sparc/openboot.txt b/docs/develop/kernel/arch/sparc/openboot.txt
index b24068ab4c..343e2931c9 100644
--- a/docs/develop/kernel/arch/sparc/openboot.txt
+++ b/docs/develop/kernel/arch/sparc/openboot.txt
@@ -65,4 +65,9 @@ Debugging
 
 4000 1000 dump (dump 1000 bytes from address 4000)
 
+.registers (show global registers)
+.locals (show local/windowed registers)
+
+%pc dis (disassemble code being exectuted)
+
 ctrace (backtrace)