/** @todo implement this function */
void asm_pass_two (char* obj_file_name) {
//do?
FILE* fw = open_write_or_error(obj_file_name);
for(currInfo = infoHead; currInfo->opcode != 17; currInfo = currInfo->next){
//asm_print_line_info(currInfo);
LC3_inst_t* inst = lc3_get_inst_info(currInfo -> opcode);
printf("WHY IS ADD WRONG %p\n", inst);
operands_t operands = inst->forms[currInfo->form].operands;
printf("form is: %d\n", currInfo->form);
currInfo->machineCode = inst->forms[currInfo->form].prototype;
for (operand_t op = FMT_R1; op <= FMT_STR; op <<= 1) {
if(op & operands){
printf("op is %d\n", op );
if(currInfo->opcode == OP_BR){
currInfo->machineCode = setField(currInfo->machineCode,11,9,currInfo->reg1);
encode_PC_offset_or_error(9);
}
encode_operand(op);
// printf("making it?\n");
}
}
asm_print_line_info(currInfo);
if(currInfo->opcode == OP_BLKW){
for(int i = 0; i < currInfo->immediate;i++){
lc3_write_LC3_word(fw,0000);
}
}else{
lc3_write_LC3_word(fw,currInfo->machineCode);
}
}
}
int main (int argc, char* argv[]) {
if (argc != 2) {
printf("Usage: seeLC3 opcode\n");
printf("e.g. seeLC3 ADD\n");
}
else {
opcode_t opcode = util_get_opcode(argv[1]);
LC3_inst_t* info = lc3_get_inst_info(opcode);
if (! info) {
printf("%s is no an opcode\n", argv[1]);
}
else {
printf("form bit:%2d\n", info->formBit);
for (int i = 0; i < 2; i++) {
if (info->forms[i].name != NULL) {
printf("form: %d name: %s operands: %s operandsnum: %d prototype x%04x\n", i,
info->forms[i].name,
lc3_get_format_name(info->forms[i].operands),
info->forms[i].operands, //operand numeric representatio
info->forms[i].prototype);
}
}
}
}
}
//done
void check_line_syntax (char* token) {
printf("check_line_syntax('%s')\n", token);
//check if its a label
token = check_for_label(token);
printf(" my token is %s \n ", token);
//store the op in an int
if(token == NULL)
return;
int myop = util_get_opcode(token);
printf("opcode is: %d\n", myop );
//store it itno my data structure..
currInfo -> opcode = myop;
if(myop == OP_BR){
currInfo->reg1 = util_parse_cond(token+2);
token = next_token();
currInfo->reference = strdup(token);
//get_operand(op,token);
}
LC3_inst_t* inst = lc3_get_inst_info(myop);
printf("inst is: %p \n" , inst);
int position = 0;
if(strcasecmp(inst ->forms[0].name,token) != 0){
position = 1;
}
/*if(inst ->forms[1].name != NULL &&strcasecmp(inst ->forms[1].name,token) == 0){
position = 1;
if(strcasecmp(inst ->forms[0].name,token) != 0)
position = 1;
}*/
if(myop != OP_BR){
currInfo->form=position;}
printf("%d\n whats my position", position);
operands_t format = inst -> forms[position].operands;
scan_operands(format);
}
