util.c

#include "util.h"

// initializes the name generator
void initNameGenerator()
{
	nameGenCounter = 1;
}

// generates a variable name sequentially
char* generateVariableName()
{
//	this one generates v000, v001, ... , v010, v011, ... , v998, v999
	name[0] = 't';
	name[1] = 'm';
	name[2] = 'p';
	sprintf(name + 3, "%.3d", nameGenCounter);

	++nameGenCounter;

	return name;
}

void initAddressGenerator()
{
	mainAddressCounter = 0x110;
	tempAddressCounter = 0x120;
	// printf("Start From: %x\n", tempAddressCounter);
}

// generates an address for temp(intermediate) variables
char* generateTempAddress()
{
	sprintf(tempAddress, "%x", tempAddressCounter);
	++tempAddressCounter;
	return tempAddress;
}
int reg[7];
int getRegister(){
	for(int i=0;i<7;++i){
		if(reg[i] == 0 ){
			reg[i] = 1;
			return i;
		}
	}
	return -1;
}
void freeReg(int i){
	reg[i] = 0;
}

// generates an address for variables
char* generateMainAddress()
{
        sprintf(mainAddress, "%x", mainAddressCounter);
		// printf("%x\n", mainAddressCounter);

        ++mainAddressCounter;
        return mainAddress;
}

// generates sequential numbers
void initNumberGenerator()
{
	labelCounter = 0;
}

// returns generated numbers as string
int generateLabelNumber()
{
	++labelCounter;
	return labelCounter;
}