diff --git a/Ghidra/Processors/8051/certification.manifest b/Ghidra/Processors/8051/certification.manifest
index fc6cfe4588..7e2d6acc9e 100644
--- a/Ghidra/Processors/8051/certification.manifest
+++ b/Ghidra/Processors/8051/certification.manifest
@@ -1,19 +1,19 @@
 ##VERSION: 2.0
 Module.manifest||GHIDRA||||END|
 data/languages/80251.cspec||GHIDRA||||END|
-data/languages/80251.pspec||GHIDRA||reviewed||END|
+data/languages/80251.pspec||GHIDRA||||END|
 data/languages/80251.sinc||GHIDRA||||END|
 data/languages/80251.slaspec||GHIDRA||||END|
 data/languages/80390.cspec||GHIDRA||||END|
 data/languages/80390.slaspec||GHIDRA||||END|
 data/languages/8051.cspec||GHIDRA||||END|
 data/languages/8051.ldefs||GHIDRA||||END|
-data/languages/8051.pspec||GHIDRA||reviewed||END|
+data/languages/8051.pspec||GHIDRA||||END|
 data/languages/8051.slaspec||GHIDRA||||END|
 data/languages/8051_archimedes.cspec||GHIDRA||||END|
 data/languages/8051_main.sinc||GHIDRA||||END|
 data/languages/mx51.cspec||GHIDRA||||END|
-data/languages/mx51.pspec||GHIDRA||reviewed||END|
+data/languages/mx51.pspec||GHIDRA||||END|
 data/languages/mx51.sinc||GHIDRA||||END|
 data/languages/mx51.slaspec||GHIDRA||||END|
 data/languages/old/8051v1.lang||GHIDRA||reviewed||END|
diff --git a/Ghidra/Processors/8051/data/languages/80251.pspec b/Ghidra/Processors/8051/data/languages/80251.pspec
index 3d950cc6ad..a6b68b5160 100644
--- a/Ghidra/Processors/8051/data/languages/80251.pspec
+++ b/Ghidra/Processors/8051/data/languages/80251.pspec
@@ -6,6 +6,7 @@
   
   <volatile outputop="write_volatile" inputop="read_volatile">
     <range space="SFR" first="0x0" last="0x1FF"/>
+    <range space="BITS" first="0x400" last="0x800"/>
   </volatile>
   
   <default_symbols>
diff --git a/Ghidra/Processors/8051/data/languages/8051.pspec b/Ghidra/Processors/8051/data/languages/8051.pspec
index a80d562650..8f2fbadd27 100644
--- a/Ghidra/Processors/8051/data/languages/8051.pspec
+++ b/Ghidra/Processors/8051/data/languages/8051.pspec
@@ -6,6 +6,7 @@
   
   <volatile outputop="write_volatile" inputop="read_volatile">
     <range space="SFR" first="0x0" last="0xFF"/>
+    <range space="BITS" first="0x80" last="0xFF"/>
   </volatile>
   
   <default_symbols>
diff --git a/Ghidra/Processors/8051/data/languages/mx51.pspec b/Ghidra/Processors/8051/data/languages/mx51.pspec
index 9e3dfd4f43..e5f4f3d62f 100644
--- a/Ghidra/Processors/8051/data/languages/mx51.pspec
+++ b/Ghidra/Processors/8051/data/languages/mx51.pspec
@@ -6,6 +6,7 @@
   
   <volatile outputop="write_volatile" inputop="read_volatile">
     <range space="SFR" first="0x0" last="0xFF"/>
+    <range space="BITS" first="0x80" last="0xFF"/>
   </volatile>
   
   <default_symbols>
@@ -47,10 +48,10 @@
     <symbol name="BANK3_R7" address="RAM:7f001f"/>
   
     <symbol name="P0" address="SFR:80"/>
-    		<symbol name="SP" address="SFR:81"/>
-		    <symbol name="DPL" address="SFR:82"/>
-		    <symbol name="DPH" address="SFR:83"/>
-		    <symbol name="DPXL" address="SFR:84"/>
+    <symbol name="SP" address="SFR:81"/>
+    <symbol name="DPL" address="SFR:82"/>
+    <symbol name="DPH" address="SFR:83"/>
+    <symbol name="DPXL" address="SFR:84"/>
     <symbol name="PCON" address="SFR:87"/>
     <symbol name="TCON" address="SFR:88"/>
     <symbol name="TMOD" address="SFR:89"/>
@@ -274,10 +275,10 @@
     <symbol name="P0.1" address="BITS:81"/>
     <symbol name="P0.2" address="BITS:82"/>
     <symbol name="P0.3" address="BITS:83"/>
-    <symbol name="P0.4" address="BITS:84"/>
-    <symbol name="P0.5" address="BITS:85"/>
-    <symbol name="P0.6" address="BITS:86"/>
-    <symbol name="P0.7" address="BITS:87"/>
+    <symbol name="P0.4" address="BITS:84/>
+    <symbol name="P0.5" address="BITS:85/>
+    <symbol name="P0.6" address="BITS:86/>
+    <symbol name="P0.7" address="BITS:87/>
     <symbol name="IT0" address="BITS:88"/>
     <symbol name="IE0" address="BITS:89"/>
     <symbol name="IT1" address="BITS:8a"/>