compilator-2000/yacc_util.c

#include "yacc_util.h"

void write_affectation(SymbolTable* symbol_table, InstructionTable *instruction_table, char* symbol_dest, SymbolItem* src) {
    mark_symbol_initialized(symbol_table, symbol_dest);
    SymbolItem *dest = get_symbol_item(symbol_table, symbol_dest);
    add_instruction(instruction_table, COP, src->address, dest->address, 0);
}

const SymbolItem* write_op(SymbolTable* symbol_table, InstructionTable *instruction_table, Instruction instruction, SymbolItem *op1, SymbolItem *op2) {
    const SymbolItem* dest = add_temp_symbol(symbol_table, TYPE_INT);
    add_instruction(instruction_table, instruction, dest->address, op1->address, op2->address);
    return dest;
}

const SymbolItem* write_negation(SymbolTable* symbol_table, InstructionTable *instruction_table, SymbolItem *op2) {
//    Create temp variable with 0
    const SymbolItem* op1 = init_temp_symbol(symbol_table, instruction_table, 0);
    const SymbolItem* dest = add_temp_symbol(symbol_table, TYPE_INT);
//    Make the 0 - variable operation
    add_instruction(instruction_table, SOU, dest->address, op1->address, op2->address);
    return dest;
}


const SymbolItem* init_temp_symbol(SymbolTable* symbol_table, InstructionTable *instruction_table, int constant) {
    const SymbolItem* dest = add_temp_symbol(symbol_table, TYPE_INT);
    add_instruction(instruction_table, AFC, dest->address, constant, 0);
    return dest;
}