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pass2.h
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#ifndef PASS2_H
#define PASS2_H
#include <fstream>
#include <vector>
#include <sstream>
#include <map>
#include <iostream>
#include <iomanip>
#include <string>
#include "optable.h"
#include "utilities.h"
#include <ctype.h>
void generateOpcode(std::vector<std::vector<std::string>>code, std::vector<int>&objectCodeInt, std::map<std::string,std::string>opTable, std::map<std::string,string> symbolTable, std::vector<std::vector<std::string>>literalTable, int &baseAddress, int lines){
vector<string>literals;
for(int i=1;i<lines;i++){
if(code[i].size()==1){
if(code[i][0]== "LTORG" && literals.size()>=1){ //put -1 in object code vector depending on the number of literals
for(int j =0;j<literals.size();j++){
objectCodeInt.push_back(getLiteralValue(literals[j],literalTable));
}
literals.clear();
continue;
}else{//RSUB
if(code[i][0][0]=='+'){
//format 4 handle (opcode , flags)
objectCodeInt.push_back(handleFormat4(code[i], code[i][0] ,opTable));
}else{
//handle format 3 (opcode , flags)
objectCodeInt.push_back(handleFormat3(code[i], code[i][0] ,opTable));
}
}
}else if(code[i].size()==2){
if(code[i][0][0]=='+'){
//format 4 handle (opcode , flags)
objectCodeInt.push_back(handleFormat4(code[i], code[i][0] ,opTable));
}else if(code[i][0]=="FIX" || code[i][0]=="FLOAT" || code[i][0]=="HIO" || code[i][0]=="NORM" || code[i][0]=="SIO" || code[i][0]=="TIO" || code[i][0]=="FIX" ){
//handle format 1 (opcode)
objectCodeInt.push_back(handleFormat1(code[i], code[i][0] ,opTable));
}else if(code[i][0]=="ADDR" || code[i][0]=="CLEAR" || code[i][0]=="COMPR" || code[i][0]=="DIVR" || code[i][0]=="MULR" || code[i][0]=="RMO" || code[i][0]=="SHIFTL" || code[i][0]=="SHIFTR" || code[i][0]=="SUBR" || code[i][0]=="SVC" || code[i][0]=="TIXR"){
//handle format 2 (opcode , registers)
objectCodeInt.push_back(handleFormat2(code[i], code[i][0] ,opTable));
}else if(code[i][0]=="BASE"){
objectCodeInt.push_back(-1);
baseAddress = hexStringToDec(symbolTable.find(code[i][1])->second);
}else{
//handle format 3 (opcode , flags)
objectCodeInt.push_back(handleFormat3(code[i], code[i][0] ,opTable));
}
if(code[i][1][0] == '=' && std::find(literals.begin(),literals.end(),code[i][1]) == literals.end()){ //detect literals
literals.push_back(code[i][1]);
}
}else if(code[i].size()==3){
if(code[i][1][0]=='+'){
//format 4 handle (opcode , flags)
objectCodeInt.push_back(handleFormat4(code[i], code[i][1] ,opTable));
}else if(code[i][1]=="FIX" || code[i][1]=="FLOAT" || code[i][1]=="HIO" || code[i][1]=="NORM" || code[i][1]=="SIO" || code[i][1]=="TIO" || code[i][1]=="FIX" ){
//handle format 1 (opcode)
objectCodeInt.push_back(handleFormat1(code[i], code[i][1] ,opTable));
}else if(code[i][1]=="ADDR" || code[i][1]=="CLEAR" || code[i][1]=="COMPR" || code[i][1]=="DIVR" || code[i][1]=="MULR" || code[i][1]=="RMO" || code[i][1]=="SHIFTL" || code[i][1]=="SHIFTR" || code[i][1]=="SUBR" || code[i][1]=="SVC" || code[i][1]=="TIXR"){
//handle format 2 (opcode , registers)
objectCodeInt.push_back(handleFormat2(code[i], code[i][1] ,opTable));
}else if(code[i][1]=="BASE"){
objectCodeInt.push_back(-1);
baseAddress = hexStringToDec(symbolTable.find(code[i][2])->second);
}else if(code[i][1]=="EQU"){//EQU
objectCodeInt.push_back(-1);
}else if(code[i][1]=="RESW" || code[i][1]=="RESB"){
objectCodeInt.push_back(-2);
}else if((code[i][2][0]=='X' || code[i][2][0]=='x')&& code[i][2].size()>=3){
std::string temp, declaredValue;
int stringLength = code[i][2].substr(2,code[i][2].size()-3).size();
declaredValue = code[i][2].substr(2,code[i][2].size()-3);
bool oddflag=false;
if(stringLength%2){
stringLength--;
oddflag=true;
}
for(int i=0;i<stringLength;i+=2){
objectCodeInt.push_back(hexStringToDec(declaredValue.substr(i,2)));
}
if(oddflag){
objectCodeInt.push_back(hexStringToDec(declaredValue.substr(declaredValue.size()-1,1)));
}
}else if((code[i][2][0]=='C' || code[i][2][0]=='c')&& code[i][2].size()>=3){
std::stringstream stream;
std::string temp, declaredValue;
int stringLength = code[i][2].substr(2,code[i][2].size()-3).size();
declaredValue = code[i][2].substr(2,code[i][2].size()-3);
bool oddflag=false;
int offset=0;
if(stringLength%3){
offset = stringLength%3;
oddflag=true;
}
for(int i=0;i<stringLength - offset;i+=3){
stream<< (int)declaredValue.substr(i,3)[0]<<(int)declaredValue.substr(i,3)[1]<<(int)declaredValue.substr(i,3)[2];
int temp;
stream >> temp;
stream.str(std::string());
objectCodeInt.push_back(temp);
}
if(oddflag){
for(int i=stringLength-offset;i<stringLength;i++)
stream<< (int)declaredValue[i];
int temp;
stream >> temp;
stream.str(std::string());
objectCodeInt.push_back(temp);
}
}else{
//handle format 3 (opcode , flags)
objectCodeInt.push_back(handleFormat3(code[i], code[i][1] ,opTable));
}
if(code[i][2][0] == '=' && std::find(literals.begin(),literals.end(),code[i][2]) == literals.end()){ //detect literals
literals.push_back(code[i][2]);
}
}
}
if(literals.size()>=1){ //put -1 in object code vector depending on the number of literals
for(int j =0;j<literals.size();j++){
objectCodeInt.push_back(getLiteralValue(literals[j],literalTable));
}
literals.clear();
}
}
void generateAddresses(std::vector<std::vector<std::string>>code, std::vector<std::string>&objectCode,std::vector<int>objectCodeInt, std::map<std::string,string> symbolTable,std::vector<std::vector<std::string>>literalTable,std::vector<int> location, int baseAddress, int lines){
stringstream stream;
vector<string>literals;
int k=0;
for(int i=1;i<lines;i++,k++){
if(objectCodeInt[k] == -1){
objectCode.push_back("-");
continue;
}else if(code[i].size()==1){
if(code[i][0]=="LTORG"){
for(int j =0;j<literals.size();j++)
stream<<setfill('0')<<setw(6)<<(intToHexString(objectCodeInt[k++]));
objectCode.push_back((stream.str()));
stream.str(std::string());
literals.clear();
k--;
}else{//RSUB
if(code[i][0][0]=='+'){
objectCode.push_back(intToHexString(objectCodeInt[k] << 20));
}else{
objectCode.push_back(intToHexString(objectCodeInt[k] << 12));
}
}
}else if(code[i].size()==2){
if(code[i][0][0]=='+'){
if(code[i][1][0]=='#'){
if(symbolTable.count(code[i][1].substr(1,code[i][1].size()-1))>0){
int temp = objectCodeInt[k];
temp |= 1;
temp = temp << 20;
temp |= (hexStringToDec(symbolTable.find(code[i][1].substr(1,code[i][1].size()-1))->second));
stream<<setfill('0')<<setw(8)<<(intToHexString(temp));
objectCode.push_back(stream.str());
stream.str(std::string());
}else{
int temp = objectCodeInt[k];
temp = temp << 20;
temp |= hexStringToDec(code[i][1].substr(1,code[i][1].size()-1));
stream<<setfill('0')<<setw(8)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}else if(code[i][1][0]=='@'){
if(symbolTable.count(code[i][1].substr(1,code[i][1].size()-1))>0){
int temp = objectCodeInt[k];
temp |= 2;
temp = temp << 20;
int calcAns = (hexStringToDec(symbolTable.find(code[i][1].substr(1,code[i][1].size()-1))->second)) - location[k+1];
calcAns = calcAns & 1048575;
temp |= calcAns;
stream<<setfill('0')<<setw(8)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}else if(code[i][1].substr(code[i][1].size()-2,2) == ",X"){
if(symbolTable.count(code[i][1].substr(0,code[i][1].size()-2))>0){
int temp = objectCodeInt[k];
temp |= 3;
temp = temp << 20;
int calcAns = (hexStringToDec(symbolTable.find(code[i][1].substr(0,code[i][1].size()-2))->second)) - location[k+1];
calcAns = calcAns & 1048575;
temp |= calcAns;
stream<<setfill('0')<<setw(8)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}else if(code[i][1][0]=='='){
int temp = objectCodeInt[k];
temp = temp <<20;
temp |= findInLiteralTable(code[i][1],literalTable);
stream<<setfill('0')<<setw(8)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
if(std::find(literals.begin(),literals.end(),code[i][1]) == literals.end())
literals.push_back(code[i][1]);
}else{
int temp = objectCodeInt[k];
temp = temp<<20;
std::string temp3 = (symbolTable.find(code[i][1])->second);
int temp2 = hexStringToDec(temp3);
temp = temp |temp2;
stream<<setfill('0')<<setw(8)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}else if(code[i][0]=="FIX" || code[i][0]=="FLOAT" || code[i][0]=="HIO" || code[i][0]=="NORM" || code[i][0]=="SIO" || code[i][0]=="TIO" || code[i][0]=="FIX" ){
//handle format 1
objectCode.push_back(intToHexString(objectCodeInt[k]));
}else if(code[i][0]=="ADDR" || code[i][0]=="CLEAR" || code[i][0]=="COMPR" || code[i][0]=="DIVR" || code[i][0]=="MULR" || code[i][0]=="RMO" || code[i][0]=="SHIFTL" || code[i][0]=="SHIFTR" || code[i][0]=="SUBR" || code[i][0]=="SVC" || code[i][0]=="TIXR"){
//handle format 2
objectCode.push_back(intToHexString(objectCodeInt[k]));
}else if(code[i][0]=="BASE"){ //useless now
objectCode.push_back("-");
}else{
//handle format 3
if(code[i][1][0]=='#'){
if(symbolTable.count(code[i][1].substr(1,code[i][1].size()-1))>0){
int temp = objectCodeInt[k];
temp |= 2;
temp = temp << 12;
int calcAns = (hexStringToDec(symbolTable.find(code[i][1].substr(1,code[i][1].size()-1))->second))-location[k+1];
//check for PC range
if(calcAns >= -2048 && calcAns <= 2047){
calcAns = calcAns & 4095;
temp |= calcAns;
}else{
//set b flag
temp|=16384;
//clear p flag and clear e flag (dont know why it's set in the first place)
temp&=16764927;
calcAns = (hexStringToDec(symbolTable.find(code[i][1].substr(1,code[i][1].size()-1))->second))-baseAddress;
calcAns = calcAns & 4095;
temp|= calcAns;
}
stream<<setfill('0')<<setw(6)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
else
{
int temp = objectCodeInt[k];
temp = temp << 12;
temp |= hexStringToDec(code[i][1].substr(1,code[i][1].size()-1));
stream<<setfill('0')<<setw(6)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}else if(code[i][1][0]=='@'){
if(symbolTable.count(code[i][1].substr(1,code[i][1].size()-1))>0){
int temp = objectCodeInt[k];
temp |= 2;
temp = temp << 12;
int calcAns=(hexStringToDec(symbolTable.find(code[i][1].substr(1,code[i][1].size()-1))->second)) - location[k+1];
//check for PC range
if(calcAns >= -2048 && calcAns <= 2047){
calcAns = calcAns & 4095;
temp |= calcAns;
}else{
//set b flag
temp|=16384;
//clear p flag and clear e flag (dont know why it's set in the first place)
temp&=16764927;
calcAns = (hexStringToDec(symbolTable.find(code[i][1].substr(1,code[i][1].size()-1))->second))-baseAddress;
calcAns = calcAns & 4095;
temp|= calcAns;
}
stream<<setfill('0')<<setw(6)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}else if(code[i][1].substr(code[i][1].size()-2,2) == ",X"){
if(symbolTable.count(code[i][1].substr(0,code[i][1].size()-2))>0){
int temp = objectCodeInt[k];
temp |= 3;
temp = temp << 12;
int calcAns = (hexStringToDec(symbolTable.find(code[i][1].substr(0,code[i][1].size()-2))->second)) - location[k+1];
//check for PC range
if(calcAns >= -2048 && calcAns <= 2047){
calcAns = calcAns & 4095;
temp |= calcAns;
}else{
//set b flag
temp|=16384;
//clear p flag and clear e flag (don't know why it's set in the first place)
temp&=16764927;
calcAns = (hexStringToDec(symbolTable.find(code[i][1].substr(0,code[i][1].size()-2))->second))-baseAddress;
calcAns = calcAns & 4095;
temp|= calcAns;
}
stream<<setfill('0')<<setw(6)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}else if(code[i][1][0]=='='){
int temp = objectCodeInt[k];
temp = temp <<12;
temp |=((findInLiteralTable(code[i][1],literalTable))-location[k+1]);
stream<<setfill('0')<<setw(6)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
if(std::find(literals.begin(),literals.end(),code[i][1]) == literals.end())
literals.push_back(code[i][1]);
}else{
int temp = objectCodeInt[k];
temp = temp<<12;
int calcAns = hexStringToDec(symbolTable.find(code[i][1])->second)-location[k+1];
//check for PC range
if(calcAns >= -2048 && calcAns <= 2047){
calcAns = calcAns & 4095;
temp |= calcAns;
}else{
//set b flag
temp|=16384;
//clear p flag and clear e flag (don't know why it's set in the first place)
temp&=16764927;
calcAns = (hexStringToDec(symbolTable.find(code[i][1])->second))-baseAddress;
calcAns = calcAns & 4095;
temp|= calcAns;
}
stream<<setfill('0')<<setw(6)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}
}else if(code[i].size()==3){
if(code[i][1][0]=='+'){
if(code[i][2][0]=='#'){
if(symbolTable.count(code[i][2].substr(1,code[i][2].size()-1))>0){
int temp = objectCodeInt[k];
temp |= 1;
temp = temp << 20;
int calcAns=(hexStringToDec(symbolTable.find(code[i][2].substr(1,code[i][2].size()-1))->second)) - location[k+1];
calcAns = calcAns & 1048575;
temp |= calcAns;
stream<<setfill('0')<<setw(8)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}else{
int temp = objectCodeInt[k];
temp = temp << 20;
temp |= hexStringToDec(code[i][2].substr(1,code[i][2].size()-1));
stream<<setfill('0')<<setw(8)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}else if(code[i][2][0]=='@'){
if(symbolTable.count(code[i][2].substr(1,code[i][2].size()-1))>0){
int temp = objectCodeInt[k];
temp |= 2;
temp = temp << 20;
int calcAns=(hexStringToDec(symbolTable.find(code[i][2].substr(1,code[i][2].size()-1))->second)) - location[k+1];
calcAns = calcAns & 1048575;
temp |= calcAns;
stream<<setfill('0')<<setw(8)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}else if(code[i][2].substr(code[i][2].size()-2,2) == ",X"){
if(symbolTable.count(code[i][2].substr(0,code[i][2].size()-2))>0){
int temp = objectCodeInt[k];
temp |= 3;
temp = temp << 20;
int calcAns = (hexStringToDec(symbolTable.find(code[i][2].substr(0,code[i][2].size()-2))->second)) - location[k+1];
calcAns = calcAns & 1048575;
temp |= calcAns;
stream<<setfill('0')<<setw(8)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}else if(code[i][2][0]=='='){
int temp = objectCodeInt[k];
temp = temp <<20;
temp |= findInLiteralTable(code[i][2],literalTable);
stream<<setfill('0')<<setw(8)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
if(std::find(literals.begin(),literals.end(),code[i][2]) == literals.end())
literals.push_back(code[i][2]);
}else{
int temp = objectCodeInt[k];
temp = temp<<20;
temp |= hexStringToDec(symbolTable.find(code[i][2])->second);
stream<<setfill('0')<<setw(8)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}else if(code[i][1]=="FIX" || code[i][1]=="FLOAT" || code[i][1]=="HIO" || code[i][1]=="NORM" || code[i][1]=="SIO" || code[i][1]=="TIO" || code[i][1]=="FIX" ){
//handle format 1
objectCode.push_back(intToHexString(objectCodeInt[k]));
}else if(code[i][1]=="ADDR" || code[i][1]=="CLEAR" || code[i][1]=="COMPR" || code[i][1]=="DIVR" || code[i][1]=="MULR" || code[i][1]=="RMO" || code[i][1]=="SHIFTL" || code[i][1]=="SHIFTR" || code[i][1]=="SUBR" || code[i][1]=="SVC" || code[i][1]=="TIXR"){
//handle format 2
objectCode.push_back(intToHexString(objectCodeInt[k]));
}else if(code[i][1]=="EQU"){
objectCode.push_back("-");
}else if(code[i][1]=="RESW" || code[i][1]=="RESB"){
objectCode.push_back("--");
}else if((code[i][2][0]=='X' || code[i][2][0]=='x')&& code[i][2].size()>=3){
int stringLength = code[i][2].substr(2,code[i][2].size()-3).size();
bool oddflag=false;
if(stringLength%2){
stringLength--;
oddflag=true;
}
for(int j=0;j<stringLength;j+=2){
objectCode.push_back(intToHexString(objectCodeInt[k++]));
}
if(oddflag){
objectCode.push_back(intToHexString(objectCodeInt[k]));
}else{
k--;
}
}else if((code[i][2][0]=='C' || code[i][2][0]=='c')&& code[i][2].size()>=3){
std::stringstream stream;
std::string temp, declaredValue;
int stringLength = code[i][2].substr(2,code[i][2].size()-3).size();
declaredValue = code[i][2].substr(2,code[i][2].size()-3);
bool oddflag=false;
int offset=0;
if(stringLength%3){
offset = stringLength%3;
oddflag=true;
}
for(int j=0;j<stringLength - offset;j+=3){
objectCode.push_back(intToHexString(objectCodeInt[k++]));
}
if(oddflag){
for(int j=stringLength-offset;j<stringLength;j++)
objectCode.push_back(intToHexString(objectCodeInt[k++]));
k--;
}else{
k--;
}
}else{
//handle format 3
if(code[i][2][0]=='#'){
if(symbolTable.count(code[i][2].substr(1,code[i][2].size()-1))>0){
int temp = objectCodeInt[k];
temp |= 2;
temp = temp << 12;
int calcAns = (hexStringToDec(symbolTable.find(code[i][2].substr(1,code[i][2].size()-1))->second)) - location[k+1];
//check for PC range
if(calcAns >= -2048 && calcAns <= 2047){
calcAns = calcAns & 4095;
temp |= calcAns;
}else{
//set b flag
temp|=16384;
//clear p flag and clear e flag (don't know why it's set in the first place)
temp&=16764927;
calcAns = (hexStringToDec(symbolTable.find(code[i][2].substr(1,code[i][2].size()-1))->second))-baseAddress;
calcAns = calcAns & 4095;
temp|= calcAns;
}
stream<<setfill('0')<<setw(6)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
else
{
int temp = objectCodeInt[k];
temp = temp << 12;
temp |= hexStringToDec(code[i][2].substr(1,code[i][2].size()-1));
stream<<setfill('0')<<setw(6)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}else if(code[i][2][0]=='@'){
if(symbolTable.count(code[i][2].substr(1,code[i][2].size()-1))>0){
int temp = objectCodeInt[k];
temp |= 2;
temp = temp << 12;
int calcAns = (hexStringToDec(symbolTable.find(code[i][2].substr(1,code[i][2].size()-1))->second)) - location[k+1];
//check for PC range
if(calcAns >= -2048 && calcAns <= 2047){
calcAns = calcAns & 4095;
temp |= calcAns;
}else{
//set b flag
temp|=16384;
//clear p flag and clear e flag (don't know why it's set in the first place)
temp&=16764927;
calcAns = (hexStringToDec(symbolTable.find(code[i][2].substr(1,code[i][2].size()-1))->second))-baseAddress;
calcAns = calcAns & 4095;
temp|= calcAns;
}
stream<<setfill('0')<<setw(6)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}else if(code[i][2].substr(code[i][2].size()-2,2) == ",X"){
if(symbolTable.count(code[i][2].substr(0,code[i][2].size()-2))>0){
int temp = objectCodeInt[k];
temp |= 3;
temp = temp << 12;
int calcAns = (hexStringToDec(symbolTable.find(code[i][2].substr(0,code[i][2].size()-2))->second)) - location[k+1];
//check for PC range
if(calcAns >= -2048 && calcAns <= 2047){
calcAns = calcAns & 4095;
temp |= calcAns;
}else{
//set b flag
temp|=16384;
//clear p flag and clear e flag (don't know why it's set in the first place)
temp&=16764927;
calcAns = (hexStringToDec(symbolTable.find(code[i][2].substr(0,code[i][2].size()-2))->second))-baseAddress;
calcAns = calcAns & 4095;
temp|= calcAns;
}
stream<<setfill('0')<<setw(6)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}else if(code[i][2][0]=='='){
int temp = objectCodeInt[k];
temp = temp <<12;
temp |=((findInLiteralTable(code[i][2],literalTable))-location[k+1]);
stream<<setfill('0')<<setw(6)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
if(std::find(literals.begin(),literals.end(),code[i][2]) == literals.end())
literals.push_back(code[i][2]);
}else{
int temp = objectCodeInt[k];
temp = temp<<12;
int calcAns = (hexStringToDec(symbolTable.find(code[i][2])->second)-location[k+1]);
//check for PC range
if(calcAns >= -2048 && calcAns <= 2047){
calcAns = calcAns & 4095;
temp |= calcAns;
}else{
//set b flag
temp|=16384;
//clear p flag and clear e flag (don't know why it's set in the first place)
temp&=16764927;
calcAns = (hexStringToDec(symbolTable.find(code[i][2])->second))-baseAddress;
calcAns = calcAns & 4095;
temp|= calcAns;
}
stream<<setfill('0')<<setw(6)<<intToHexString(temp);
objectCode.push_back(stream.str());
stream.str(std::string());
}
}
}
}
if(literals.size()>=1) //push remaining literals
for(int j =0;j<literals.size();j++)
stream<<setfill('0')<<setw(2)<<intToHexString(objectCodeInt[k++]);
objectCode.push_back(stream.str());
stream.str(std::string());
}
#endif