start classifying opcodes and writing skeleton for twopass assembly

src/parser.c

@@ -14,6 +14,17 @@
 // - count operands and match type/values
 // - generate final a64inst and return
 
+void classifyOpcode(char* opcode, a64inst_instruction *instr){
+    if(strcmp(opcode, "b") == 0 || strcmp(opcode, "br") == 0 || strncmp(opcode, "b.", strlen("b.")) == 2){
+        instr->type = a64inst_BRANCH;
+    } else if(strcmp(opcode, "ldr") == 0 || strcmp(opcode, "str") == 0){
+        //loading/storing instruction; classify operands
+        instr->type = a64inst_SINGLETRANSFER;
+    } else {
+        //data processing
+    }
+}
+
 char *tokeniseOperands(char* str, int operandCount, char *operands[]){
     char *operandsDupe = strdup(str);
     int operandCount = 0;
@@ -43,8 +54,10 @@ a64inst_instruction *parser(char asmLine[]){
 
     if(opcode[0]=="."){
         //type is directive
+        //define new type in a64instr struct
     } else if(opcode[strlen(opcode)-1]==":") {
         //type is label
+        //use symbol table to assemble
     } else {
         //type is instruction
         int operandCount = 0;

src/twopassassembly.c

@@ -0,0 +1,12 @@
+//generates assembled code based on two pass assembly method
+
+void generateSymbolTable(a64inst_instruction instrs[], int numInstrs){
+    //TODO:
+    //generate symbol table based on inputted assembly code and labels
+    for(int i=0; i<numInstrs; i++){
+        // discuss defining a LABEL type
+        if(instrs[i]->type==LABEL){
+            // symbol table stuff here
+        }
+    }
+}