CodeBlock* FunctionEntry::codeGen() {
if(body()!=NULL){
CodeBlock* func_block = new CodeBlock();
func_block->setStartLabel(func_start_);
func_block->append(body()->codeGen());
const SymTab* st = this->symTab();
if(st!=NULL){
for(SymTab::const_iterator i = st->begin(); i != st->end(); ++i){
if((*i)->kind()==SymTabEntry::Kind::VARIABLE_KIND){
VariableEntry* ve = (VariableEntry*) (*i);
if(ve->varKind()!=VariableEntry::VarKind::PARAM_VAR){
func_block->append(ve->codeGen());
}
}
}
}
CodeBlock* func_end = new CodeBlock();
//Loads label from memory
ICode lab_addr(ICode::ICodeType::ADD,&MemoryMgr::basePointerRegister(),new Value(returnLabel(),Type::TypeTag::UINT),&mem_reg_);
ICode load_lab(ICode::ICodeType::LDI,&mem_reg_,&label_reg_);
ICode ret_jmp(ICode::ICodeType::JMPI,&label_reg_);
func_end->append(lab_addr);
func_end->append(load_lab);
func_end->append(ret_jmp);
func_block->append(func_end);
return func_block;
}
return NULL;
}
