diff --git a/antlr/pdp7asm.g4 b/antlr/pdp7asm.g4
index 9ae4db9..06e457e 100644
--- a/antlr/pdp7asm.g4
+++ b/antlr/pdp7asm.g4
@@ -101,32 +101,95 @@ variable
     ;
 
 opcode
-    : 'jms'
-    | 'dac'
-    | 'lac'
-    | 'and'
-    | 'jmp'
-    | 'tad'
-    | 'sad'
-    | 'sys'
-    | 'sna'
-    | 'spa'
-    | 'lacq'
-    | 'lrss'
+    : 'dac'
+    | 'jms'
     | 'dzm'
-    | 'sza'
-    | 'lmq'
-    | 'cll'
-    | 'als'
-    | 'omq'
-    | 'isz'
-    | 'sma'
-    | 'skp'
-    | 'law'
+    | 'lac'
     | 'xor'
-    | 'alss'
-    | 'sac'
     | 'add'
+    | 'tad'
+    | 'xct'
+    | 'isz'
+    | 'and'
+    | 'sad'
+    | 'jmp'
+    | 'nop'
+    | 'i'
+    | 'law'
+    | 'cma'
+    | 'las'
+    | 'ral'
+    | 'rar'
+    | 'hlt'
+    | 'sma'
+    | 'sza'
+    | 'snl'
+    | 'skp'
+    | 'sna'
+    | 'szl'
+    | 'rtl'
+    | 'rtr'
+    | 'cil'
+    | 'rcl'
+    | 'rcr'
+    | 'cia'
+    | 'lrs'
+    | 'lrss'
+    | 'lls'
+    | 'llss'
+    | 'als'
+    | 'alss'
+    | 'mul'
+    | 'idiv'
+    | 'lacq'
+    | 'clq'
+    | 'omq'
+    | 'cmq'
+    | 'lmq'
+    | 'dscs'
+    | 'dslw'
+    | 'dslm'
+    | 'dsld'
+    | 'dsls'
+    | 'dssf'
+    | 'dsrs'
+    | 'iof'
+    | 'ion'
+    | 'caf'
+    | 'clon'
+    | 'clsf'
+    | 'clof'
+    | 'ksf'
+    | 'krb'
+    | 'tsf'
+    | 'tcf'
+    | 'tls'
+    | 'sck'
+    | 'cck'
+    | 'lck'
+    | 'rsf'
+    | 'rsa'
+    | 'rrb'
+    | 'psf'
+    | 'pcf'
+    | 'psa'
+    | 'cdf'
+    | 'rlpd'
+    | 'lda'
+    | 'wcga'
+    | 'raef'
+    | 'rlpd'
+    | 'beg'
+    | 'spb'
+    | 'cpb'
+    | 'lpb'
+    | 'wbl'
+    | 'dprs'
+    | 'dpsf'
+    | 'dpcf'
+    | 'dprc'
+    | 'crsf'
+    | 'crrb'
     ;
 
 LOC