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parser.y
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// COPYRIGTH Maciej Górski, 244991
%{
// #include "compiler.hpp"
#include <string>
#include <iostream>
#include <fstream>
#include <map>
#include <vector>
#include <typeinfo>
#include<bits/stdc++.h>
#include <stack>
#include "parser.tab.h"
#include <cstdlib>
using namespace std;
extern int yylex();
extern int yylineno;
extern FILE *yyin;
int yyerror(const string str);
void myyerror(string, char* );
bool isError = false;
enum Type {
ARRAY, IDENTIFIER, NUMBER
};
typedef struct {
Type type;
string name;
bool isInit, isIterator, isTable;
long long int memoryOffsetBegin, memoryLen, firstIndexInTable, lastIndexInTable;
} Variable;
typedef struct {
long long int beginCondCheckIndex;
long long int jumpIndex;
} Jump;
long long int startMemoryIndex = 10;
long long int memoryIndex = startMemoryIndex;
long long int commandIndex = 0;
vector<string> code;
map<string, Variable> variables;
stack <Jump> jumps; //holds the index of the jump, and the beging of cond checking
stack <Jump> jumpsTest;
stack <long long int> doWhilesBegin;
stack <char*> iterators;
bool used9 = false;//ptr
bool used7 = false;//ptr
bool used6 = false;//ptr
bool used5 = false;// -1 for shifts
bool used4 = false; //+1 for shifts
void addCode(string);
void declareSimpleVariable(char*);
void declareArray(char*,char*,char*);
void store(valVar);
void SudoStore(valVar);
void declareIterator(char*);
//expressions
void constructValue(long long int);
void handleExpresionVal(valVar);
void handleExpresionPLUS(valVar,valVar);
void handleExpresionMINUS(valVar,valVar);
void handleExpresionTIMES(valVar, valVar);
void handleExpresionDIV(valVar, valVar);
void handleExpresionMOD(valVar, valVar);
//conditions
void handleCondEq(valVar, valVar);
void handleCondNeq(valVar, valVar);
void handleCondLe(valVar, valVar);
void handleCondGe(valVar, valVar);
void handleCondLeq(valVar, valVar);
void handleCondGeq(valVar, valVar);
//for shifts
void setUp4ifNeeded();
void setUp5ifNeeded();
%}
%define parse.error verbose
%code requires {
enum TypeValVar {
PTR, IDE, VAL
};
struct valVar {
TypeValVar type;
long long int x;
char* name;
};
}
%token <str> num
%token <str> DECLARE _BEGIN END IF THEN ELSE ENDIF
%token <str> WHILE DO ENDWHILE ENDDO FOR FROM ENDFOR
%token <str> COLON WRITE READ pidentifier SEMICOLON COMMA TO DOWNTO
%token <str> LB RB ASSIGN EQ LE GE LEQ GEQ NEQ PLUS MINUS TIMES DIV MOD
%type <vv> value
%type <vv> identifier
%union{
char* str;
long long int num;
valVar vv;
}
%%
program: DECLARE declarations _BEGIN commands END {addCode("HALT");}
| _BEGIN commands END {addCode("HALT");}
;
declarations: declarations COMMA pidentifier {declareSimpleVariable($3); }
| declarations COMMA pidentifier LB num COLON num RB {declareArray($3,$5,$7); }
| pidentifier {declareSimpleVariable($1); }
| pidentifier LB num COLON num RB { declareArray($1,$3,$5); }
;
commands: commands command {}
| command {}
;
command: identifier ASSIGN expression SEMICOLON {store($1);}
| IF condition THEN commands { code.at(jumpsTest.top().jumpIndex) += to_string(commandIndex+1); jumpsTest.pop();
Jump j; j.jumpIndex = commandIndex; jumpsTest.push(j); addCode("JUMP "); }
ELSE commands ENDIF { code.at(jumpsTest.top().jumpIndex) += to_string(commandIndex); jumpsTest.pop(); }
| IF condition THEN commands ENDIF { code.at(jumpsTest.top().jumpIndex) += to_string(commandIndex); jumpsTest.pop(); }
| WHILE condition DO commands ENDWHILE { addCode("JUMP "+to_string(jumpsTest.top().beginCondCheckIndex));
code.at(jumpsTest.top().jumpIndex) += to_string(commandIndex); jumpsTest.pop();
}
| DO { doWhilesBegin.push(commandIndex);}
commands WHILE condition ENDDO { addCode("JUMP " +to_string(doWhilesBegin.top())); doWhilesBegin.pop();
code.at(jumpsTest.top().jumpIndex) += to_string(commandIndex); jumpsTest.pop();
}
| FOR pidentifier FROM value TO value DO { declareIterator($2); handleExpresionVal($4);
valVar lim; lim.type = IDE; lim.x = memoryIndex;
valVar ite; ite.name= $2; ite.type = IDE; ite.x = variables.find($2)->second.memoryOffsetBegin;
store(ite);
handleExpresionVal($6);
addCode("STORE " + to_string(memoryIndex));
handleCondLeq(ite,lim);
memoryIndex++;
}
commands ENDFOR { valVar ite; ite.type = IDE;
ite.x = variables.find(iterators.top())->second.memoryOffsetBegin;
addCode("LOAD " + to_string(ite.x)); addCode("INC");
SudoStore(ite);
addCode("JUMP "+to_string(jumpsTest.top().beginCondCheckIndex));
//cout<<jumpsTest.top().jumpIndex<<" asda "<<jumpsTest.top().jumpIndex<<endl;
code.at(jumpsTest.top().jumpIndex) += to_string(commandIndex); jumpsTest.pop();
variables.erase(iterators.top());
iterators.pop();
}
| FOR pidentifier FROM value DOWNTO value DO { declareIterator($2); handleExpresionVal($4);
valVar lim; lim.type = IDE; lim.x = memoryIndex;
valVar ite; ite.type = IDE; ite.x = variables.find($2)->second.memoryOffsetBegin; ite.name= $2;
store(ite);
handleExpresionVal($6);
addCode("STORE " + to_string(memoryIndex)); memoryIndex++;
handleCondGeq(ite,lim);
}
commands ENDFOR { valVar ite; ite.type = IDE;
ite.x = variables.find(iterators.top())->second.memoryOffsetBegin;
addCode("LOAD " + to_string(ite.x)); addCode("DEC");
store(ite);
addCode("JUMP "+to_string(jumpsTest.top().beginCondCheckIndex));
code.at(jumpsTest.top().jumpIndex) += to_string(commandIndex); jumpsTest.pop();
variables.erase(iterators.top());
iterators.pop();}
| READ identifier SEMICOLON { addCode("GET");
store($2);
}
| WRITE value SEMICOLON {handleExpresionVal($2); addCode("PUT");}
;
expression: value { handleExpresionVal($1);}
| value PLUS value { handleExpresionPLUS($1,$3);}
| value MINUS value { handleExpresionMINUS($1,$3); }
| value TIMES value { handleExpresionTIMES($1, $3);}
| value DIV value { handleExpresionDIV($1, $3);}
| value MOD value { handleExpresionMOD($1, $3);}
;
condition: value EQ value {handleCondEq($1,$3);}
| value NEQ value {handleCondNeq($1,$3);}
| value LE value {handleCondLe($1,$3);}
| value GE value {handleCondGe($1,$3);}
| value LEQ value {handleCondLeq($1,$3);}
| value GEQ value {handleCondGeq($1,$3);}
;
value: num {
valVar res; res.type = VAL; res.x = atoll($1);
$$ = res;
}
| identifier {
if($1.type == IDE){
if(!variables.find($1.name)->second.isInit) myyerror("Using uninitialized variable ",$1.name);
}
$$ = $1;
}
;
identifier: pidentifier { if (variables.find($1) == variables.end()){ myyerror("Undeclared variable: ",$1);}
if(variables.find($1)->second.type != IDENTIFIER) myyerror("Illegal variable-style usage of array ",$1);
valVar adr; adr.type = IDE; adr.x = variables.find($1)->second.memoryOffsetBegin; adr.name = $1;
$$ = adr;
}
| pidentifier LB pidentifier RB {if (variables.find($1) == variables.end() || variables.find($3) == variables.end()){ myyerror("Undeclared variable ",$3);}
if(!variables.find($3)->second.isInit&& !variables.find($3)->second.isIterator) myyerror("Using uninitialized variable ",$3);
if(variables.find($1)->second.type != ARRAY) myyerror("Illegal array-style usage of variable ",$1);
if(variables.find($3)->second.type != IDENTIFIER) myyerror("Array used like non-array type ",$3);
Variable i = variables.find($1)->second;
constructValue(i.memoryOffsetBegin - i.firstIndexInTable);
long long int i1 = variables.find($3)->second.memoryOffsetBegin;
addCode("ADD " + to_string(i1));
valVar res; res.type=PTR;
if(used6 && used7 && used9) yyerror("FATAL ERROR, CONTACT A GOD OF YOUR CHOICE.");
if(!used9){
addCode("STORE 9");
res.x = 9;
used9 = true;
}
else if(!used7){
addCode("STORE 7");
res.x = 7;
used7 = true;
}
else if(!used6){
addCode("STORE 6");
res.x = 6;
used6 = true;
}
$$ = res;
}
| pidentifier LB num RB { if (variables.find($1) == variables.end()){ myyerror("Undeclared variable ", $1);}
Variable var = variables.find($1)->second;
if(variables.find($1)->second.type != ARRAY) myyerror("Illegal array-style usage of variable ",$1);
if(var.lastIndexInTable < stoll($3) || var.firstIndexInTable > stoll($3) ) myyerror("Index outside declared array ", $1);
valVar adr; adr.type = IDE; adr.x = var.memoryOffsetBegin + ( stoll($3) - var.firstIndexInTable);
adr.name = $1;
$$ = adr;
}
;
%%
void declareSimpleVariable(char* _name){
// Type type;
// string name;
// bool isInit, isIterator, isTable;
// long long int memoryOffsetBegin, memoryLen, firstIndexInTable, lastIndexInTable;
if (variables.find(_name) != variables.end()){
myyerror("Repeated variable declaration: ", _name);
}
Variable var;
var.type = IDENTIFIER;
var.name = _name;
var.isInit = false;
var.isIterator = false;
var.isTable = false;
var.memoryOffsetBegin = memoryIndex;
var.memoryLen = 1;
variables.insert(make_pair(_name, var));
memoryIndex += var.memoryLen;
}
void declareIterator(char* _name){
// Type type;
// string name;
// bool isInit, isIterator, isTable;
// long long int memoryOffsetBegin, memoryLen, firstIndexInTable, lastIndexInTable;
if (variables.find(_name) != variables.end()){
myyerror("Repeated variable declaration: ", _name);
}
Variable var;
var.type = IDENTIFIER;
var.name = _name;
var.isInit = true;
var.isIterator = true;
var.isTable = false;
var.memoryOffsetBegin = memoryIndex;
var.memoryLen = 1;
variables.insert(make_pair(_name, var));
memoryIndex += var.memoryLen;
iterators.push(_name);
}
void declareArray(char* _name, char* index1, char* index2){
if (variables.find(_name) != variables.end()){
myyerror("Repeated variable declaration: ", _name);
}
if(stoll(index1)>stoll(index2)){
myyerror("Left index > Rigth index in array ", _name);
}
Variable var;
var.type = ARRAY;
var.name = _name;
var.isInit = true;
var.isIterator = false;
var.isTable = true;
var.memoryOffsetBegin = memoryIndex;
var.memoryLen = stoll(index2) - stoll(index1) + 1;
var.lastIndexInTable = stoll(index2);
var.firstIndexInTable = stoll(index1);
variables.insert(make_pair(_name, var));
memoryIndex += var.memoryLen;
}
void store(valVar adr){
if(adr.type == IDE){
if(variables.find(adr.name)->second.isIterator && !variables.find(adr.name)->second.isInit ) myyerror("Illegal modification of local iterator ",adr.name);
addCode("STORE " + to_string(adr.x));
variables.find(adr.name)->second.isInit = true;
}
else if (adr.type == PTR) addCode("STOREI " + to_string(adr.x));
used6 = false;
used7 = false;
used9 = false;
}
void SudoStore(valVar adr){
if(adr.type == IDE){
addCode("STORE " + to_string(adr.x));
variables.find(adr.name)->second.isInit = true;
}
else if (adr.type == PTR) addCode("STOREI " + to_string(adr.x));
used6 = false;
used7 = false;
used9 = false;
}
void constructValue(long long int x){
// O(log n), works for negative.
addCode("SUB 0 ");
if(x == 0){ return;}
if(abs(x) < 35){
if(x >0){
for(long long int i = 0; i < abs(x); i++ ){
addCode("INC");
}
}
else{
for(long long int i = 0; i < abs(x); i++ ){
addCode("DEC");
}
}
return;
}
setUp4ifNeeded();
unsigned long long int x1= abs(x);
string str;
for( ; x1 > 0 ; x1 /= 2 ) str += char( x1%2 + '0' ) ;
addCode("SUB 0");
reverse(str.begin(),str.end());
for(unsigned int i= 0;i<str.length()-1;i++){
if(str[i] == '1'){
if(x>0) addCode("INC");
if(x<0) addCode("DEC");
addCode("SHIFT 4");
}
else{
addCode("SHIFT 4");
}
}
if(str[str.length()-1] == '1') {
if(x>0) addCode("INC");
if(x<0) addCode("DEC");
}
}
void handleExpresionVal(valVar a){ //PUT WHATEVERS INSIDE INTO ACC, THE WAY GOD INTENDED
if(a.type == IDE){addCode("LOAD " + to_string(a.x));}
else if(a.type == PTR){addCode("LOADI " + to_string(a.x));}
else if(a.type == VAL){constructValue(a.x);}
else if(a.type == PTR){
if(a.x == 7) used7 = false;
if(a.x == 6 ) used6 = false;
if(a.x == 9) used9 = false;
}
}
void handleExpresionPLUS(valVar a,valVar b){
if(a.type == VAL && b.type == VAL) constructValue(a.x + b.x);
if(a.type == VAL && b.type == IDE){ constructValue(a.x); addCode("ADD " + to_string(b.x)); }
if(b.type == VAL && a.type == IDE){ constructValue(b.x); addCode("ADD " + to_string(a.x)); }
if(a.type == IDE && b.type == IDE) {addCode("LOAD " + to_string(b.x)); addCode("ADD " + to_string(a.x)); }
if(a.type == PTR && b.type == IDE) {addCode("LOADI "+to_string(a.x)); addCode("ADD "+ to_string(b.x)); }
if(b.type == PTR && a.type == IDE) {addCode("LOADI "+to_string(b.x)); addCode("ADD "+ to_string(a.x)); }
if(a.type == PTR && b.type == PTR){
addCode("LOADI "+to_string(a.x));
addCode("STORE 1");
addCode("LOADI "+to_string(b.x));
addCode("ADD 1");
}
if(a.type == VAL && b.type == PTR){
constructValue(a.x);
addCode("STORE 1");
addCode("LOADI "+to_string(b.x));
addCode("ADD 1");
}
if(b.type == VAL && a.type == PTR){
constructValue(b.x);
addCode("STORE 1");
addCode("LOADI "+to_string(a.x));
addCode("ADD 1");
}
used6 = false;
used7 = false;
used9 = false;
}
void handleExpresionMINUS(valVar a,valVar b){
if(a.type == VAL && b.type == VAL) constructValue(a.x - b.x);
if(a.type == VAL && b.type == IDE){ constructValue(a.x); addCode("SUB " + to_string(b.x)); }
if(b.type == VAL && a.type == IDE){
constructValue(b.x);
addCode("STORE 1");
addCode("LOAD " + to_string(a.x));
addCode("SUB 1");
}
if(a.type == IDE && b.type == IDE) {addCode("LOAD " + to_string(a.x)); addCode("SUB " + to_string(b.x)); }
if(a.type == PTR && b.type == IDE) {addCode("LOADI "+to_string(a.x)); addCode("SUB "+ to_string(b.x)); }
if(b.type == PTR && a.type == IDE) {addCode("LOADI "+to_string(b.x)); addCode("SUB "+ to_string(a.x)); }
if(a.type == PTR && b.type == PTR){
addCode("LOADI "+to_string(b.x));
addCode("STORE 1");
addCode("LOADI "+to_string(a.x));
addCode("SUB 1");
}
if(a.type == VAL && b.type == PTR){
constructValue(a.x);
addCode("STORE 1");
addCode("LOADI "+to_string(b.x));
addCode("SUB 1");
}
if(b.type == VAL && a.type == PTR){
constructValue(b.x);
addCode("STORE 1");
addCode("LOADI "+to_string(a.x));
addCode("SUB 1");
}
used6 = false;
used7 = false;
used9 = false;
}
void handleExpresionTIMES(valVar a, valVar b){
// 2: a. 3:b, 1: res, 8: sign flag
if(a.type == VAL && b.type == VAL){
constructValue(a.x*b.x);
return;
}
addCode("SUB 0");
addCode("STORE 8");
if(a.type == VAL){
if(a.x<0){
addCode("INC");
addCode("STORE 8");
}
constructValue(abs(a.x));
addCode("STORE 2");
}
if(a.type == IDE){
addCode("LOAD " + to_string(a.x));
addCode("STORE 2");
addCode("JNEG "+to_string(commandIndex+2));
addCode("JUMP " +to_string(commandIndex + 7)); // do konca JGEN
addCode("SUB " + to_string(a.x));
addCode("SUB " + to_string(a.x));
addCode("STORE 2");
addCode("LOAD 8");
addCode("INC");
addCode("STORE 8");
}
if(a.type == PTR){
addCode("LOADI " + to_string(a.x));
addCode("STORE 2");
addCode("JNEG "+to_string(commandIndex+2));
addCode("JUMP " +to_string(commandIndex + 7)); // do konca JGEN
addCode("SUB 2");
addCode("SUB 2");
addCode("STORE 2");
addCode("LOAD 8");
addCode("INC");
addCode("STORE 8");
}
if(b.type == VAL){
if(b.x<0){
addCode("LOAD 8");
addCode("INC");
addCode("STORE 8");
}
constructValue(abs(b.x));
addCode("STORE 3");
}
if(b.type == IDE){
addCode("LOAD " + to_string(b.x));
addCode("STORE 3");
addCode("JNEG "+to_string(commandIndex+2));
addCode("JUMP " +to_string(commandIndex + 7)); // do konca JGEN
addCode("SUB " + to_string(b.x));
addCode("SUB " + to_string(b.x));
addCode("STORE 3");
addCode("LOAD 8");
addCode("INC");
addCode("STORE 8");
}
if(b.type == PTR){
addCode("LOADI " + to_string(b.x));
addCode("STORE 3");
addCode("JNEG "+to_string(commandIndex+2));
addCode("JUMP " +to_string(commandIndex + 7)); // do konca JGEN
addCode("SUB 3");
addCode("SUB 3");
addCode("STORE 3");
addCode("LOAD 8");
addCode("INC");
addCode("STORE 8");
}
setUp4ifNeeded();
setUp5ifNeeded();
addCode("SUB 0");
addCode("STORE 1"); // 1 <-- result
////END SETUP, fun begins:
long long int start = commandIndex +1;
addCode("JUMP "+to_string(commandIndex+15) + " #to end while");
addCode("LOAD 2");
addCode("SHIFT 5");
addCode("SHIFT 4");
addCode("SUB 2");
addCode("JZERO "+to_string(commandIndex + 4) +"# to za ifem" );
addCode("LOAD 1");
addCode("ADD 3");
addCode("STORE 1");
addCode("LOAD 2 #ZA IFEM");
addCode("SHIFT 5");
addCode("STORE 2");
addCode("LOAD 3");
addCode("ADD 0");
addCode("STORE 3");
addCode("LOAD 2 #endwhile");
addCode("JZERO "+to_string(commandIndex +2));
addCode("JUMP " + to_string(start));
//
addCode("LOAD 8");
addCode("SUB 4");
addCode("JZERO " +to_string(commandIndex+3));
addCode("LOAD 1");
addCode("JUMP "+to_string(commandIndex+4));
addCode("LOAD 1");
addCode("SUB 1");
addCode("SUB 1");
used6 = false;
used7 = false;
used9 = false;
}
void handleExpresionDIV(valVar a, valVar b){
// @1 : result == 0, @2 : remain= a value, @3 - scaled_divisor = b, @6 - multiple = 1, @8-sign flag, @7-a (dividend) value
if(a.type == VAL && b.type == VAL){
if(b.x == 0) {constructValue(0); return ;}
constructValue(a.x/b.x);
return;
}
long long int BzeroJumpIndex = -1;
addCode("SUB 0");
addCode("STORE 8");
if(b.type == VAL){
if(b.x<0){
addCode("LOAD 8");
addCode("INC");
addCode("STORE 8");
}
constructValue(abs(b.x));
addCode("STORE 3");
}
if(b.type == IDE){
addCode("LOAD " + to_string(b.x));
BzeroJumpIndex = commandIndex;
addCode("JZERO ########################");
addCode("STORE 3");
addCode("JNEG "+to_string(commandIndex+2));
addCode("JUMP " +to_string(commandIndex + 7)); // do konca JGEN
addCode("SUB " + to_string(b.x));
addCode("SUB " + to_string(b.x));
addCode("STORE 3");
addCode("LOAD 8");
addCode("INC");
addCode("STORE 8");
}
if(b.type == PTR){
addCode("LOADI " + to_string(b.x));
BzeroJumpIndex = commandIndex;
addCode("JZERO ########################");
addCode("STORE 3");
addCode("JNEG "+to_string(commandIndex+2));
addCode("JUMP " +to_string(commandIndex + 7)); // do konca JGEN
addCode("SUB 3");
addCode("SUB 3");
addCode("STORE 3");
addCode("LOAD 8");
addCode("INC");
addCode("STORE 8");
}
if(a.type == VAL){
if(a.x<0){
addCode("INC");
addCode("STORE 8");
}
constructValue(abs(a.x));
addCode("STORE 2");
}
if(a.type == IDE){
addCode("LOAD " + to_string(a.x));
addCode("STORE 2");
addCode("JNEG "+to_string(commandIndex+2));
addCode("JUMP " +to_string(commandIndex + 7)); // do konca JGEN
addCode("SUB " + to_string(a.x));
addCode("SUB " + to_string(a.x));
addCode("STORE 2");
addCode("LOAD 8");
addCode("INC");
addCode("STORE 8");
}
if(a.type == PTR){
addCode("LOADI " + to_string(a.x));
addCode("STORE 2");
addCode("JNEG "+to_string(commandIndex+2));
addCode("JUMP " +to_string(commandIndex + 7)); // do konca JGEN
addCode("SUB 2");
addCode("SUB 2");
addCode("STORE 2");
addCode("LOAD 8");
addCode("INC");
addCode("STORE 8");
}
setUp4ifNeeded();
setUp5ifNeeded();
addCode("SUB 0");
addCode("STORE 1"); // 1 <-- result
addCode("INC");
addCode("STORE 6");
addCode("LOAD 2");
addCode("STORE 7");
// //setup endded now:
// addCode("LOAD 1 #setupended");
// addCode("PUT");
// addCode("LOAD 2");
// addCode("PUT");
// addCode("LOAD 3");
// addCode("PUT");
// addCode("LOAD 4");
// addCode("PUT");
// addCode("LOAD 5");
// addCode("PUT");
// addCode("LOAD 6");
// addCode("PUT");
// addCode("LOAD 7");
// addCode("PUT");
// addCode("LOAD 8");
// addCode("PUT");
// @1 : result == 0, @2 : remain= a value, @3 - scaled_divisor = b, @6 - multiple = 1, @8-sign flag, @7-a (dividend) value
long long int startWhile = commandIndex;
addCode("LOAD 7");
addCode("SUB 3");
addCode("JPOS "+to_string(commandIndex+2));
addCode("JUMP " +to_string(commandIndex +8));
addCode("LOAD 3");
addCode("SHIFT 4");
addCode("STORE 3");
addCode("LOAD 6");
addCode("SHIFT 4");
addCode("STORE 6");
addCode("JUMP " + to_string(startWhile));
startWhile = commandIndex;
addCode("LOAD 2");
addCode("SUB 3");
addCode("JNEG "+to_string(commandIndex+7));
addCode("LOAD 2");
addCode("SUB 3");
addCode("STORE 2");
addCode("LOAD 1");
addCode("ADD 6");
addCode("STORE 1");
addCode("LOAD 3");
addCode("SHIFT 5");
addCode("STORE 3");
addCode("LOAD 6");
addCode("SHIFT 5");
addCode("STORE 6");
addCode("JZERO " +to_string(commandIndex+2));
addCode("JUMP " + to_string(startWhile));
/// now figure out sign
addCode("LOAD 8");
addCode("DEC");
addCode("JZERO " + to_string(commandIndex+3));
addCode("LOAD 1");
addCode("JUMP " +to_string(commandIndex + 11));// wyjdz
addCode("LOAD 2");
addCode("JZERO " +to_string(commandIndex+6) + "#JEZRO MODULo");
addCode("LOAD 1");
addCode("SUB 1");
addCode("SUB 1");
addCode("DEC ");
addCode("JUMP " + to_string(commandIndex+4) );
addCode("LOAD 1");
addCode("SUB 1");
addCode("SUB 1");
if(BzeroJumpIndex != -1) code.at(BzeroJumpIndex) = "JZERO "+ to_string(commandIndex ) + "#B ZERO";
used6 = false;
used7 = false;
used9 = false;
}
void handleExpresionMOD(valVar a, valVar b){
// @1 : result == 0, @2 : remain= a value, @3 - scaled_divisor = b, @6 - multiple = 1, @8-sign flag, @7-a (dividend) value
// if a<0 [8]++; if b<0 [8] +=2;
if(a.type == VAL && b.type == VAL){
if(b.x == 0) {constructValue(0); return ;}
constructValue((a.x % b.x + b.x) %b.x);
return;
}
long long int BzeroJumpIndex = -1;
addCode("SUB 0");
addCode("STORE 8");
if(b.type == VAL){
if(b.x<0){
addCode("LOAD 8");
addCode("INC");
addCode("INC");
addCode("STORE 8");
}
constructValue(abs(b.x));
addCode("STORE 3");
}
if(b.type == IDE){
addCode("LOAD " + to_string(b.x));
BzeroJumpIndex = commandIndex;
addCode("JZERO ########################");
addCode("STORE 3");
addCode("JNEG "+to_string(commandIndex+2));
addCode("JUMP " +to_string(commandIndex + 8)); // do konca JGEN
addCode("SUB " + to_string(b.x));
addCode("SUB " + to_string(b.x));
addCode("STORE 3");
addCode("LOAD 8");
addCode("INC");
addCode("INC");
addCode("STORE 8");
}
if(b.type == PTR){
addCode("LOADI " + to_string(b.x));
BzeroJumpIndex = commandIndex;
addCode("JZERO ########################");
addCode("STORE 3");
addCode("JNEG "+to_string(commandIndex+2));
addCode("JUMP " +to_string(commandIndex + 8)); // do konca JGEN
addCode("SUB 3");
addCode("SUB 3");
addCode("STORE 3");
addCode("LOAD 8");
addCode("INC");
addCode("INC");
addCode("STORE 8");
}
if(a.type == VAL){
addCode("LOAD 8");
addCode("INC");
addCode("STORE 8");
constructValue(abs(a.x));
addCode("STORE 2");
}
if(a.type == IDE){
addCode("LOAD " + to_string(a.x));
addCode("STORE 2");
addCode("JNEG "+to_string(commandIndex+2));
addCode("JUMP " +to_string(commandIndex + 7)); // do konca JGEN
addCode("SUB " + to_string(a.x));
addCode("SUB " + to_string(a.x));
addCode("STORE 2");
addCode("LOAD 8");
addCode("INC");
addCode("STORE 8");
}
if(a.type == PTR){
addCode("LOADI " + to_string(a.x));
addCode("STORE 2");
addCode("JNEG "+ to_string(commandIndex+2));
addCode("JUMP " + to_string(commandIndex + 7)); // do konca JGEN
addCode("SUB 2");
addCode("SUB 2");
addCode("STORE 2");
addCode("LOAD 8");
addCode("INC");
addCode("STORE 8");
}
setUp4ifNeeded();
setUp5ifNeeded();
addCode("SUB 0");
addCode("STORE 1"); // 1 <-- result
addCode("INC");
addCode("STORE 6");
addCode("LOAD 2");
addCode("STORE 7");
// @1 : result == 0, @2 : remain= a value, @3 - scaled_divisor = b, @6 - multiple = 1, @8-sign flag, @7-a (dividend) value
long long int startWhile = commandIndex;
addCode("LOAD 7");
addCode("SUB 3");
addCode("JPOS "+to_string(commandIndex+2));
addCode("JUMP " +to_string(commandIndex +8));
addCode("LOAD 3");
addCode("SHIFT 4");
addCode("STORE 3");
addCode("LOAD 6");
addCode("SHIFT 4");
addCode("STORE 6");
addCode("JUMP " + to_string(startWhile));
startWhile = commandIndex;
addCode("LOAD 2");
addCode("SUB 3");
addCode("JNEG "+to_string(commandIndex+7));
addCode("LOAD 2");
addCode("SUB 3");
addCode("STORE 2");
addCode("LOAD 1");
addCode("ADD 6");
addCode("STORE 1");
addCode("LOAD 3");
addCode("SHIFT 5");
addCode("STORE 3");
addCode("LOAD 6");
addCode("SHIFT 5");
addCode("STORE 6");
addCode("JZERO " +to_string(commandIndex+2));
addCode("JUMP " + to_string(startWhile));
handleExpresionVal(b);
addCode("STORE 3"); //store b -> 3
/// now figure out sign
addCode("LOAD 8");
addCode("JZERO " + to_string(commandIndex + 15)); //to end(load 1)
addCode("DEC");
addCode("JZERO " + to_string(commandIndex + 10)); //to a-,b+
addCode("DEC");
addCode("JZERO " + to_string(commandIndex + 5)); //to a+,b-
//a-, b-, zaneguj mod
addCode("LOAD 2");
addCode("SUB 2");
addCode("SUB 2");
addCode("JUMP " + to_string(commandIndex + 8)); //to end
// a+, b-
addCode("LOAD 2");
addCode("ADD 3");
addCode("JUMP " + to_string(commandIndex + 5)); //to end
// a-,b+
addCode("LOAD 3");
addCode("SUB 2");
addCode("JUMP " + to_string(commandIndex + 2)); //to end
addCode("LOAD 2");
//end
if(BzeroJumpIndex != -1) code.at(BzeroJumpIndex) = "JZERO "+ to_string(commandIndex ) + " #B==ZERO";
used6 = false;
used9 = false;
used7 = false;
}
void setUp4ifNeeded(){
if(!used4){
addCode("SUB 0");
used4 = true;
addCode("INC");
addCode("STORE 4");
}
}
void setUp5ifNeeded(){
if(!used5){
addCode("SUB 0");
used5 = true;
addCode("DEC");
addCode("STORE 5");
}
}
void handleCondEq(valVar a, valVar b){
Jump j; j.beginCondCheckIndex = commandIndex;
handleExpresionMINUS(a,b);
addCode("JZERO "+ to_string(commandIndex+2)); //true
j.jumpIndex = commandIndex;
addCode("JUMP ");
jumpsTest.push(j);
}
void handleCondNeq(valVar a, valVar b){
Jump j; j.beginCondCheckIndex = commandIndex;
handleExpresionMINUS(a,b);
j.jumpIndex = commandIndex;
addCode("JZERO "); //false
jumpsTest.push(j);
}
void handleCondLe(valVar a, valVar b){
Jump j; j.beginCondCheckIndex = commandIndex;
handleExpresionMINUS(b,a);
addCode("JPOS "+ to_string(commandIndex+2));
j.jumpIndex = commandIndex;
addCode("JUMP ");
jumpsTest.push(j);
}
void handleCondGe(valVar a, valVar b){
Jump j; j.beginCondCheckIndex = commandIndex;
handleExpresionMINUS(a,b);
addCode("JPOS "+ to_string(commandIndex+2)); //true
j.jumpIndex = commandIndex;
addCode("JUMP ");
jumpsTest.push(j);
}
void handleCondLeq(valVar a, valVar b){
Jump j; j.beginCondCheckIndex = commandIndex;
handleExpresionMINUS(b,a);
j.jumpIndex = commandIndex;
//cout<<commandIndex<<endl;
addCode("JNEG "); //false
jumpsTest.push(j);
// jumpsTest.push(j);
}
void handleCondGeq(valVar a, valVar b){
Jump j; j.beginCondCheckIndex = commandIndex;
handleExpresionMINUS(a,b);
j.jumpIndex = commandIndex;
addCode("JNEG "); //false
jumpsTest.push(j);
}
/// \\\\\////
void addCode(string s){
// cout<<s<<endl;
code.push_back(s);
commandIndex++;
}
void printCode(string filename){
ofstream out_code(filename);
unsigned long long int i;
for(i = 0; i < code.size(); i++)