diff --git a/src/parser.c b/src/parser.c
index 53b8e0c..dd7a761 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -44,7 +44,12 @@ void classifyOpcode(char* opcode, a64inst_instruction *instr, char *operandList[
         }
 
     } else {
-        //data processing
+        int numOperands = sizeof(operandList) / sizeof(operandList[0])
+        if(numOperands==3){
+            instr->type = a64inst_DPREGISTER;
+        } else {
+            instr->type = a64inst_DPIMMEDIATE;
+        }
 
     }
 }
@@ -97,10 +102,11 @@ a64inst_instruction *parser(char asmLine[]){
         int operandCount = 0;
         const char *operandList[4];
         tokeniseOperands(operands, &operandCount, operandList);
+        renameAliases(&opcode, &operandList);
         
     }
 
-    return(a64inst_instruction);
+    return(instr);
 
 }