diff --git a/src/parser.c b/src/parser.c
index 0103a3d..98fa61a 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -14,7 +14,7 @@
 // - count operands and match type/values
 // - generate final a64inst and return
 
-void classifyOpcode(char* opcode, a64inst_instruction *instr){
+void classifyOpcode(char* opcode, a64inst_instruction *instr, char *operandList[]){
     if((int isUnconditional = strcmp(opcode, "b")) == 0 || 
         (int isRegister = strcmp(opcode, "br")) == 0 || 
         strncmp(opcode, "b.", 2) == 0){
@@ -29,7 +29,8 @@ void classifyOpcode(char* opcode, a64inst_instruction *instr){
             }
     } else if(strcmp(opcode, "ldr") == 0 || strcmp(opcode, "str") == 0){
         //loading/storing instruction; classify operands
-        instr->type = a64inst_SINGLETRANSFER;
+        char *address = opcode[1];
+
     } else {
         //data processing
 
@@ -57,6 +58,11 @@ a64inst_instruction *parser(char asmLine[]){
         exit(EXIT_FAILURE);
     }
 
+    if(strcmp(asmLine, HALT_ASM_CMD) == 0){
+        instr->type = a64inst_HALT;
+        return(instr);
+    }
+
     //"opcode operand1, {operand2}, ..."
     char *stringptr = strdup(asmLine);
 
diff --git a/src/parser.h b/src/parser.h
index 5542aca..8088efa 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -1 +1,2 @@
-#define OPERAND_DELIMITER ", "
\ No newline at end of file
+#define OPERAND_DELIMITER ", "
+#define HALT_ASM_CMD "and x0, x0, x0"
\ No newline at end of file