diff --git a/macros.js b/macros.js
index b936397..219db8b 100644
--- a/macros.js
+++ b/macros.js
@@ -265,11 +265,14 @@ function chipStatus(){
 	        ' NMI:' + readBit('nmi');
 	var machine4 =
 	        ' IR:' + hexByte(255 - readBits('notir', 8)) +
-	        ' idl:' + hexByte(255 - readBits('idl', 8)) +
-	        ' alu:' + hexByte(255 - readBits('alu', 8)) +
 	        ' TCstate:' + readBit('clock1') + readBit('clock2') +
                 	readBit('t2') + readBit('t3') + readBit('t4') + readBit('t5');
         var machine5 =
+		' idl:' + hexByte(readBits('idl', 8)) +
+		' alu:' + hexByte(readBits('alu', 8)) +
+		' idb:' +hexByte(readBits('idb',8)) +
+		' dor:' + hexByte(readBits('dor',8));
+        var machine6 =
                 ' notRdy0:' + readBit('notRdy0') +
                 ' fetch:'   + readBit('fetch') +
                 ' clearIR:' + readBit('clearIR') +
diff --git a/nodenames.js b/nodenames.js
index d6638c0..190bc8c 100644
--- a/nodenames.js
+++ b/nodenames.js
@@ -185,14 +185,22 @@ sb4: 1405,
 sb5: 166,
 sb6: 1336,
 sb7: 1001,
-alu0: 394,      // datapath state: ALU output
-alu1: 697,
-alu2: 276,
-alu3: 495,
-alu4: 1490,
-alu5: 893,
-alu6: 68,
-alu7: 1123,
+notalu0: 394,      // datapath state: alu output storage node (inverse)
+notalu1: 697,
+notalu2: 276,
+notalu3: 495,
+notalu4: 1490,
+notalu5: 893,
+notalu6: 68,
+notalu7: 1123,
+alu0: 401,      // datapath signal: ALU output
+alu1: 872,
+alu2: 1637,
+alu3: 1414,
+alu4: 606,
+alu5: 314,
+alu6: 331,
+alu7: 765,
 adl0: 413,      // internal state: address latch low
 adl1: 1282,
 adl2: 1242,
@@ -217,14 +225,22 @@ idb4: 892,
 idb5: 1503,
 idb6: 833,
 idb7: 493,
-dor0: 222,      // internal state: data output register
-dor1: 527,
-dor2: 1288,
-dor3: 823,
-dor4: 873,
-dor5: 1266,
-dor6: 1418,
-dor7: 158,
+notdor0: 222,   // internal state: data output register (storage node)
+notdor1: 527,
+notdor2: 1288,
+notdor3: 823,
+notdor4: 873,
+notdor5: 1266,
+notdor6: 1418,
+notdor7: 158,
+dor0: 97,       // internal signal: data output register
+dor1: 746,
+dor2: 1634,
+dor3: 444,
+dor4: 1088,
+dor5: 1453,
+dor6: 1415,
+dor7: 63,
 pd0: 758,       // internal state: predecode register
 pd1: 361,
 pd2: 955,