diff --git a/src/parser.c b/src/parser.c
index c3167f1..ba00c26 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -14,6 +14,36 @@
 // - count operands and match type/values
 // - generate final a64inst and return
 
+void calcluateAddressFormat(a64inst_instruction *instr,  char *operandList[]){
+    if(strcmp(operandList[0][strlen(operandList[0])-1], "{") == 0) {
+        //unsigned immediate offset
+        instr->data.processOpData.addressingMode = a64inst_UNSIGNED_OFFSET;
+    } else if(strcmp(operandList[0][strlen(operandList[0])-1], "]") == 0) {
+        //post-indexed
+        instr->data.processOpData.addressingMode = a64inst_POST_INDEXED;
+    } else {
+        //check second operand to distinguish between pre-indexed and register
+        if(strcmp(operandList[1][0], "#")==0){
+            //pre-indexed
+            instr->data.processOpData.addressingMode = a64inst_PRE_INDEXED;
+        } else {
+            //register
+            instr->data.processOpData.addressingMode = a64inst_REGISTER_OFFSET;
+        }
+    }
+}
+
+void generateLoadStoreOperands(a64inst_instruction *instr, char *opcode, char *operandList[]){
+    switch(instr->data.type){
+        case a64inst_SINGLETRANSFER:
+            calcluateAddressFormat(instr, operandList);
+            break;
+        case a64inst_LOADLITERAL:
+            break;
+        
+    }
+}
+
 void generateBranchOperands(a64inst_instruction *instr, char* opcode, char *operandList[]){
     switch(instr->data.BranchType){
         case a64inst_UNCONDITIONAL: