TranslatedFunction* Code::functionByName(const string& name) const {
FunctionMap::const_iterator it = _functionById.find(name);
if (it == _functionById.end()) {
return 0;
}
return functionById((*it).second);
}
void BytecodeInterpreter::processCall(uint16_t functionId) {
auto fun = (BytecodeFunction *)functionById(functionId);
StackFrame frame = {
fun,
0,
(uint32_t)variableStack.size(),
(uint32_t)operandStack.size() - fun->parametersNumber()
};
callStack.push_back(frame);
ctxOffset[functionId].push_back(frame.v_offset);
// move arguments to variable stack
auto it = std::prev(operandStack.end(), frame.function->parametersNumber());
std::move(it, operandStack.end(), std::back_inserter(variableStack));
operandStack.erase(it, operandStack.end());
// allocate space for locals
variableStack.resize(variableStack.size() + frame.function->localsNumber());
}
Status* InterpreterCodeImpl::execute(std::vector<Var*>& vars) {
ByteStack stack;
typedef std::map<uint16_t, ByteStorage> VarMap;
VarMap var_map;
for (std::vector<Var*>::iterator it = vars.begin(); it != vars.end(); ++it) {
if ((*it)->name() == "#__INTERPRETER_TRACING__#") {
m_trace = true;
}
}
BytecodeFunction* function = (BytecodeFunction*) functionById(0);
Bytecode* bytecode = function->bytecode();
for (size_t bci = 0; bci < bytecode->length();) {
Instruction insn = BC_INVALID;
size_t length = 1; // size of the BC_INVALID
decodeInsn(bytecode, bci, insn, length);
switch (insn) {
case BC_INVALID:
return new Status("BC_INVALID", bci);
break;
case BC_DLOAD:
stack.pushTyped(bytecode->getDouble(bci + 1));
break;
case BC_ILOAD:
stack.pushTyped(bytecode->getInt64(bci + 1));
break;
case BC_SLOAD:
stack.pushTyped(bytecode->getUInt16(bci + 1));
break;
case BC_DLOAD0:
stack.pushTyped(double(0));
break;
case BC_ILOAD0:
stack.pushTyped(int64_t(0));
break;
case BC_SLOAD0:
stack.pushTyped(uint16_t(0));
break;
case BC_DLOAD1:
stack.pushTyped(double(1));
break;
case BC_ILOAD1:
stack.pushTyped(int64_t(1));
break;
case BC_DADD:
stack.pushDouble(stack.popDouble() + stack.popDouble());
break;
case BC_IADD:
stack.pushInt64(stack.popInt64() + stack.popInt64());
break;
case BC_DSUB:
stack.pushDouble(stack.popDouble() - stack.popDouble());
break;
case BC_ISUB:
stack.pushInt64(stack.popInt64() - stack.popInt64());
break;
case BC_DMUL:
stack.pushDouble(stack.popDouble() * stack.popDouble());
break;
case BC_IMUL:
stack.pushInt64(stack.popInt64() * stack.popInt64());
break;
case BC_DDIV:
stack.pushDouble(stack.popDouble() / stack.popDouble());
break;
case BC_IDIV:
stack.pushInt64(stack.popInt64() / stack.popInt64());
break;
case BC_IMOD:
stack.pushInt64(stack.popInt64() % stack.popInt64());
break;
case BC_DNEG:
stack.pushDouble(-stack.popDouble());
break;
case BC_INEG:
stack.pushInt64(-stack.popInt64());
break;
case BC_IPRINT:
std::cout << stack.popInt64();
break;
case BC_DPRINT:
std::cout << stack.popDouble();
break;
case BC_SPRINT:
std::cout << constantById(stack.popUInt16());
break;
case BC_POP:
stack.pop();
break;
case BC_LOADDVAR0:
stack.pushDouble(var_map[0].getDouble());
break;
case BC_LOADDVAR1:
stack.pushDouble(var_map[1].getDouble());
break;
case BC_LOADDVAR2:
stack.pushDouble(var_map[2].getDouble());
break;
case BC_LOADDVAR3:
stack.pushDouble(var_map[3].getDouble());
break;
case BC_LOADIVAR0:
stack.pushInt64(var_map[0].getInt64());
break;
case BC_LOADIVAR1:
stack.pushInt64(var_map[1].getInt64());
break;
case BC_LOADIVAR2:
stack.pushInt64(var_map[2].getInt64());
break;
case BC_LOADIVAR3:
stack.pushInt64(var_map[3].getInt64());
break;
case BC_LOADSVAR0:
stack.pushUInt16(var_map[0].getUInt16());
break;
case BC_LOADSVAR1:
stack.pushUInt16(var_map[1].getUInt16());
break;
case BC_LOADSVAR2:
stack.pushUInt16(var_map[2].getUInt16());
break;
case BC_LOADSVAR3:
stack.pushUInt16(var_map[3].getUInt16());
break;
case BC_STOREDVAR0:
var_map[0].setDouble(stack.popDouble());
break;
case BC_STOREIVAR0:
var_map[0].setInt64(stack.popInt64());
break;
case BC_STORESVAR0:
var_map[0].setUInt16(stack.popUInt16());
break;
case BC_LOADDVAR:
stack.pushDouble(var_map[bytecode->getUInt16(bci + 1)].getDouble());
break;
case BC_LOADIVAR:
stack.pushInt64(var_map[bytecode->getUInt16(bci + 1)].getInt64());
break;
case BC_LOADSVAR:
stack.pushUInt16(var_map[bytecode->getUInt16(bci + 1)].getUInt16());
break;
case BC_STOREDVAR:
var_map[bytecode->getUInt16(bci + 1)].setDouble(stack.popDouble());
break;
case BC_STOREIVAR:
var_map[bytecode->getUInt16(bci + 1)].setInt64(stack.popInt64());
break;
case BC_STORESVAR:
// out << name << " @" << getUInt16(bci + 1);
var_map[bytecode->getUInt16(bci + 1)].setUInt16(stack.popUInt16());
break;
// case BC_LOADCTXDVAR:
// case BC_STORECTXDVAR:
// case BC_LOADCTXIVAR:
// case BC_STORECTXIVAR:
// case BC_LOADCTXSVAR:
// case BC_STORECTXSVAR:
//// out << name << " @" << getUInt16(bci + 1)
//// << ":" << getUInt16(bci + 3);
// break;
case BC_IFICMPNE:
if (stack.popInt64() != stack.popInt64()) {
bci += bytecode->getInt16(bci + 1) + 1;
continue;
}
break;
case BC_IFICMPE:
if (stack.popInt64() == stack.popInt64()) {
bci += bytecode->getInt16(bci + 1) + 1;
continue;
}
break;
case BC_IFICMPG:
if (stack.popInt64() > stack.popInt64()) {
bci += bytecode->getInt16(bci + 1) + 1;
continue;
}
break;
case BC_IFICMPGE:
if (stack.popInt64() >= stack.popInt64()) {
bci += bytecode->getInt16(bci + 1) + 1;
continue;
}
break;
case BC_IFICMPL:
if (stack.popInt64() < stack.popInt64()) {
bci += bytecode->getInt16(bci + 1) + 1;
continue;
}
break;
case BC_IFICMPLE:
if (stack.popInt64() <= stack.popInt64()) {
bci += bytecode->getInt16(bci + 1) + 1;
continue;
}
break;
case BC_JA:
bci += bytecode->getInt16(bci + 1) + 1;
continue;
break;
case BC_CALL://{
stack.pushTyped(bci + length);
stack.pushTyped(function->id());
// std::clog << "saving return address: " << function->id() << ":" << bci + length << std::endl;
// uint16_t f = stack.popUInt16();
// size_t b = stack.popTyped<size_t>();
// std::clog << "checking return address: " << f << ":" << b << std::endl;
// stack.pushTyped(bci + length);
// stack.pushTyped(function->id());
function = (BytecodeFunction*) functionById(bytecode->getUInt16(bci + 1));
if (!function) {
return new Status("Unresolved function ID\n", bci);
}
bytecode = function->bytecode();
bci = 0;
continue;
break;//}
case BC_CALLNATIVE:
return new Status("Native functions are currently not supported\n", bci);
break;
case BC_RETURN: {
uint16_t new_function_id = stack.popUInt16();
// std::clog << "new func id=" << new_function_id << std::endl;
function = (BytecodeFunction*) functionById(new_function_id);
if (!function) {
return new Status("Unresolved function ID\n", bci);
}
bytecode = function->bytecode();
size_t new_bci = stack.popTyped<size_t>();
// std::clog << "new bci=" << new_bci << std::endl;
bci = new_bci;
continue;
break;
}
case BC_BREAK:
return new Status("Breakpoints are currently not supported\n", bci);
break;
default:
return new Status("Unknown or unsupported instruction\n", bci);
}
bci += length;
}
#ifdef ENABLE_TRACING
std::cout << "Result = " << var_map[0].getInt64() << std::endl;
#endif
return 0;
}
void SimpleInterpreter::run(ostream &out) {
stack.resize(50);
bytecodes.clear();
indices.clear();
vars.clear();
bytecodes.push_back(bytecode);
indices.push_back(0);
contextID.push_back(0);
callsCounter.push_back(0);
SP = 0;
while (!bytecodes.empty()) {
indexType ¤tIndex = indices.back();
Bytecode &bytecode = *bytecodes.back();
Instruction instruction = bytecode.getInsn(currentIndex);
size_t instructionLength = bytecodeLength(instruction);
#ifdef LOG_INTERPRETER
const char* bcName = bytecodeName(instruction, 0);
cout << "index: " << currentIndex << ", instruction: " << bcName << endl;
#endif
switch (instruction) {
case BC_DLOAD: pushVariable(bytecode.getDouble(currentIndex + 1));
break;
case BC_ILOAD: pushVariable(bytecode.getInt64(currentIndex + 1));
break;
case BC_SLOAD: pushVariable(constantById(bytecode.getUInt16(currentIndex + 1)).c_str());
break;
case BC_DLOAD0: pushVariable(0.0);
break;
case BC_ILOAD0: pushVariable((signedIntType) 0);
break;
case BC_SLOAD0: pushVariable("");
break;
case BC_DLOAD1: pushVariable(1.0);
break;
case BC_ILOAD1: pushVariable((signedIntType) 1);
break;
case BC_DLOADM1: pushVariable(-1.0);
break;
case BC_ILOADM1: pushVariable((signedIntType) - 1);
break;
case BC_DADD: binary_operation(VT_DOUBLE, add<double>);
break;
case BC_IADD: binary_operation(VT_INT, add < signedIntType > );
break;
case BC_DSUB: binary_operation(VT_DOUBLE, sub<double>);
break;
case BC_ISUB: binary_operation(VT_INT, sub < signedIntType > );
break;
case BC_DMUL: binary_operation(VT_DOUBLE, mul<double>);
break;
case BC_IMUL: binary_operation(VT_INT, mul < signedIntType > );
break;
case BC_DDIV: binary_operation(VT_DOUBLE, _div<double>);
break;
case BC_IDIV: binary_operation(VT_INT, _div < signedIntType > );
break;
case BC_IMOD: binary_operation(VT_INT, mod < signedIntType > );
break;
case BC_DNEG: unary_operation(VT_DOUBLE, neg<double>);
break;
case BC_INEG: unary_operation(VT_INT, neg < signedIntType > );
break;
case BC_IAOR: binary_operation(VT_INT, _or < signedIntType > );
break;
case BC_IAAND: binary_operation(VT_INT, _and < signedIntType > );
break;
case BC_IAXOR: binary_operation(VT_INT, _xor < signedIntType > );
break;
case BC_IPRINT: out << popVariable().getIntValue();
out.flush();
break;
case BC_DPRINT: out << popVariable().getDoubleValue();
out.flush();
break;
case BC_SPRINT: out << popVariable().getStringValue();
out.flush();
break;
case BC_SWAP: {
auto v1 = popVariable();
auto v2 = popVariable();
pushVariable(v1);
pushVariable(v2);
break;
}
case BC_STOREDVAR0:
case BC_STOREIVAR0:
case BC_STORESVAR0: storeVariable(0);
break;
case BC_STOREDVAR1:
case BC_STOREIVAR1:
case BC_STORESVAR1: storeVariable(1);
break;
case BC_STOREDVAR2:
case BC_STOREIVAR2:
case BC_STORESVAR2: storeVariable(2);
break;
case BC_STOREDVAR3:
case BC_STOREIVAR3:
case BC_STORESVAR3: storeVariable(3);
break;
case BC_LOADDVAR:
case BC_LOADIVAR:
case BC_LOADSVAR: pushVariable(loadVariable(bytecode.getUInt16(currentIndex + 1)));
break;
case BC_LOADDVAR0:
case BC_LOADIVAR0:
case BC_LOADSVAR0: pushVariable(loadVariable(0));
break;
case BC_LOADDVAR1:
case BC_LOADIVAR1:
case BC_LOADSVAR1: pushVariable(loadVariable(1));
break;
case BC_LOADIVAR2:
case BC_LOADSVAR2:
case BC_LOADDVAR2: pushVariable(loadVariable(2));
break;
case BC_LOADDVAR3:
case BC_LOADIVAR3:
case BC_LOADSVAR3: pushVariable(loadVariable(3));
break;
case BC_STOREDVAR:
case BC_STOREIVAR:
case BC_STORESVAR: storeVariable(bytecode.getUInt16(currentIndex + 1));
break;
case BC_LOADCTXDVAR:
case BC_LOADCTXIVAR:
case BC_LOADCTXSVAR: pushVariable(loadVariable(bytecode.getUInt16(currentIndex + 1), bytecode.getUInt16(currentIndex + 3)));
break;
case BC_STORECTXDVAR:
case BC_STORECTXIVAR:
case BC_STORECTXSVAR: storeVariable(bytecode.getUInt16(currentIndex + 1), bytecode.getUInt16(currentIndex + 3));
break;
case BC_DCMP: binary_operation<double, signedIntType>(VT_DOUBLE, _cmp<double>);
break;
case BC_ICMP: binary_operation(VT_INT, _cmp < signedIntType > );
break;
case BC_JA: {
currentIndex += bytecode.getInt16(currentIndex + 1) + 1;
continue;
}
case BC_IFICMPNE: {
if (!check_condition(_neq<signedIntType>))
break;
currentIndex += bytecode.getInt16(currentIndex + 1) + 1;
continue;
}
case BC_IFICMPE: {
if (!check_condition(_eq<signedIntType>))
break;
currentIndex += bytecode.getInt16(currentIndex + 1) + 1;
continue;
}
case BC_IFICMPG: {
if (!check_condition(_g<signedIntType>))
break;
currentIndex += bytecode.getInt16(currentIndex + 1) + 1;
continue;
}
case BC_IFICMPGE: {
if (!check_condition(_ge<signedIntType>))
break;
currentIndex += bytecode.getInt16(currentIndex + 1) + 1;
continue;
}
case BC_IFICMPL: {
if (!check_condition(_l<signedIntType>))
break;
currentIndex += bytecode.getInt16(currentIndex + 1) + 1;
continue;
}
case BC_IFICMPLE: {
if (!check_condition(_le<signedIntType>))
break;
currentIndex += bytecode.getInt16(currentIndex + 1) + 1;
continue;
}
case BC_STOP: {
indices.clear();
bytecodes.clear();
continue;
}
case BC_CALLNATIVE: {
callNative(bytecode.getUInt16(currentIndex + 1));
break;
}
case BC_CALL: {
TranslatedFunction *f = functionById(bytecode.getUInt16(currentIndex + 1));
bytecodes.push_back(static_cast<BytecodeFunction *>(f)->bytecode());
indices.push_back(0);
contextID.push_back(f->id());
detectCallWithFunctionID(contextID.back());
continue;
}
case BC_RETURN: {
indices.pop_back();
bytecodes.pop_back();
if (!indices.empty()) {
indices.back() += bytecodeLength(BC_CALL);
}
if (callsCounter[contextID.back()] > 0) {
callsCounter[contextID.back()]--;
}
contextID.pop_back();
continue;
}
case BC_I2D: pushVariable((double) popVariable().getIntValue());
break;
case BC_D2I: pushVariable((signedIntType) popVariable().getDoubleValue());
break;
case BC_S2I: pushVariable((signedIntType) popVariable().getStringValue());
break;
case BC_BREAK: break;
case BC_INVALID: throw InterpretationError("BC_Invalid instruction");
default: throw InterpretationError(string("Unknown interpreting instruction: ") + bytecodeName(instruction, 0));
}
currentIndex += instructionLength;
}
}
InterpreterFunction* Context::currentFunction() const {
return functionById(currentFunctionId());
}
Bytecode* Context::bytecodeByFunctionId(uint16_t id) {
BytecodeFunction* function = functionById(id);
return (function == 0) ? 0 : function->bytecode();
}
void Interpreter::funExec(BytecodeFunction* f) {
size_t bci = 0;
size_t k = 0;
while (bci < f->bytecode()->length()) {
++k;
Instruction insn = f->bytecode()->getInsn(bci);
switch (insn) {
case BC_INVALID: {
std::cerr << "Invalid instruction!\n";
return;
break;
}
case BC_DLOAD: {
Var var(VT_DOUBLE, "");
var.setDoubleValue(f->bytecode()->getDouble(bci + 1));
programStack.push(var);
break;
}
case BC_ILOAD: {
Var var(VT_INT, "");
var.setIntValue(f->bytecode()->getInt64(bci + 1));
programStack.push(var);
break;
}
case BC_SLOAD: {
Var var(VT_STRING, "");
var.setStringValue(constantById(f->bytecode()->getUInt16(bci + 1)).c_str());
programStack.push(var);
break;
}
case BC_DLOAD0: {
Var var(VT_DOUBLE, "");
var.setDoubleValue(0.0);
programStack.push(var);
break;
}
case BC_ILOAD0: {
Var var(VT_INT, "");
var.setIntValue(0L);
programStack.push(var);
break;
}
case BC_SLOAD0: {
Var var(VT_STRING, "");
var.setStringValue("");
programStack.push(var);
break;
}
case BC_DLOAD1: {
Var var(VT_DOUBLE, "");
var.setDoubleValue(1.0);
programStack.push(var);
break;
}
case BC_ILOAD1: {
Var var(VT_INT, "");
var.setIntValue(1L);
programStack.push(var);
break;
}
case BC_DLOADM1: {
Var var(VT_DOUBLE, "");
var.setDoubleValue(-1.0);
programStack.push(var);
break;
}
case BC_ILOADM1: {
Var var(VT_INT, "");
var.setIntValue(-1L);
programStack.push(var);
break;
}
case BC_DADD: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.pop();
Var result(VT_DOUBLE, "");
result.setDoubleValue(leftOperand.getDoubleValue() + rightOperand.getDoubleValue());
programStack.push(result);
break;
}
case BC_IADD: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.pop();
Var result(VT_INT, "");
result.setIntValue(leftOperand.getIntValue() + rightOperand.getIntValue());
programStack.push(result);
break;
}
case BC_DSUB: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.pop();
Var result(VT_DOUBLE, "");
result.setDoubleValue(leftOperand.getDoubleValue() - rightOperand.getDoubleValue());
programStack.push(result);
break;
}
case BC_ISUB: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.pop();
Var result(VT_INT, "");
result.setIntValue(leftOperand.getIntValue() - rightOperand.getIntValue());
programStack.push(result);
break;
}
case BC_DMUL: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.pop();
Var result(VT_DOUBLE, "");
result.setDoubleValue(leftOperand.getDoubleValue() * rightOperand.getDoubleValue());
programStack.push(result);
break;
}
case BC_IMUL: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.pop();
Var result(VT_INT, "");
result.setIntValue(leftOperand.getIntValue() * rightOperand.getIntValue());
programStack.push(result);
break;
}
case BC_DDIV: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.pop();
Var result(VT_DOUBLE, "");
result.setDoubleValue(leftOperand.getDoubleValue() / rightOperand.getDoubleValue());
programStack.push(result);
break;
}
case BC_IDIV: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.pop();
Var result(VT_INT, "");
result.setIntValue(leftOperand.getIntValue() / rightOperand.getIntValue());
programStack.push(result);
break;
}
case BC_IMOD: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.pop();
Var result(VT_INT, "");
result.setIntValue(leftOperand.getIntValue() % rightOperand.getIntValue());
programStack.push(result);
break;
}
case BC_DNEG: {
Var operand = programStack.top();
programStack.pop();
Var result(VT_DOUBLE, "");
result.setDoubleValue(-operand.getDoubleValue());
programStack.push(result);
break;
}
case BC_INEG: {
Var operand = programStack.top();
programStack.pop();
Var result(VT_INT, "");
result.setIntValue(-operand.getIntValue());
programStack.push(result);
break;
}
case BC_IPRINT: {
Var operand = programStack.top();
programStack.pop();
std::cout << operand.getIntValue();
break;
}
case BC_DPRINT: {
Var operand = programStack.top();
programStack.pop();
std::cout << operand.getDoubleValue();
break;
}
case BC_SPRINT: {
Var operand = programStack.top();
programStack.pop();
std::cout << operand.getStringValue();
break;
}
case BC_I2D: {
Var operand = programStack.top();
programStack.pop();
Var result(VT_DOUBLE, "");
result.setDoubleValue(static_cast<double>(operand.getIntValue()));
programStack.push(result);
break;
}
case BC_D2I: {
Var operand = programStack.top();
programStack.pop();
Var result(VT_INT, "");
result.setIntValue(static_cast<int64_t>(operand.getDoubleValue()));
programStack.push(result);
break;
}
case BC_S2I: {
Var operand = programStack.top();
programStack.pop();
Var result(VT_INT, "");
result.setIntValue(atoi(operand.getStringValue()));
programStack.push(result);
break;
}
case BC_SWAP: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.pop();
programStack.push(leftOperand);
programStack.push(rightOperand);
break;
}
case BC_POP: {
programStack.pop();
break;
}
case BC_LOADSVAR0:
case BC_LOADIVAR0:
case BC_LOADDVAR0: {
map<uint16_t, Var>::iterator iter = memory.find(0);
if (iter != memory.end()) {
programStack.push(iter->second);
} else {
std::cerr << "Can't load variable 0!\n";
}
break;
}
case BC_LOADSVAR1:
case BC_LOADIVAR1:
case BC_LOADDVAR1: {
map<uint16_t, Var>::iterator iter = memory.find(1);
if (iter != memory.end()) {
programStack.push(iter->second);
} else {
std::cerr << "Can't load variable 1!\n";
}
break;
}
case BC_LOADSVAR2:
case BC_LOADIVAR2:
case BC_LOADDVAR2: {
map<uint16_t, Var>::iterator iter = memory.find(2);
if (iter != memory.end()) {
programStack.push(iter->second);
} else {
std::cerr << "Can't load variable 2!\n";
}
break;
}
case BC_LOADSVAR3:
case BC_LOADIVAR3:
case BC_LOADDVAR3: {
map<uint16_t, Var>::iterator iter = memory.find(3);
if (iter != memory.end()) {
programStack.push(iter->second);
} else {
std::cerr << "Can't load variable 3!\n";
}
break;
}
case BC_STORESVAR0:
case BC_STOREIVAR0:
case BC_STOREDVAR0: {
map<uint16_t, Var>::iterator iter = memory.find(0);
if (iter != memory.end()) {
iter->second = programStack.top();
} else {
memory.insert(make_pair(0, programStack.top()));
}
programStack.pop();
break;
}
case BC_STORESVAR1:
case BC_STOREIVAR1:
case BC_STOREDVAR1: {
map<uint16_t, Var>::iterator iter = memory.find(1);
if (iter != memory.end()) {
iter->second = programStack.top();
} else {
memory.insert(make_pair(1, programStack.top()));
}
programStack.pop();
break;
}
case BC_STORESVAR2:
case BC_STOREIVAR2:
case BC_STOREDVAR2: {
map<uint16_t, Var>::iterator iter = memory.find(2);
if (iter != memory.end()) {
iter->second = programStack.top();
} else {
memory.insert(make_pair(2, programStack.top()));
}
programStack.pop();
break;
}
case BC_STORESVAR3:
case BC_STOREIVAR3:
case BC_STOREDVAR3: {
map<uint16_t, Var>::iterator iter = memory.find(3);
if (iter != memory.end()) {
iter->second = programStack.top();
} else {
memory.insert(make_pair(3, programStack.top()));
}
programStack.pop();
break;
}
case BC_LOADDVAR: {
uint16_t id = f->bytecode()->getUInt16(bci + 1);
map<uint16_t, Var>::iterator iter = memory.find(id);
if (iter != memory.end()) {
programStack.push(iter->second);
} else {
//std::cerr << "Can't load variable " << id << "!\n";
Var var(VT_DOUBLE, "");
var.setDoubleValue(0.0);
programStack.push(var);
}
break;
}
case BC_LOADIVAR: {
uint16_t id = f->bytecode()->getUInt16(bci + 1);
map<uint16_t, Var>::iterator iter = memory.find(id);
if (iter != memory.end()) {
programStack.push(iter->second);
} else {
//std::cerr << "Can't load variable " << id << "!\n";
Var var(VT_INT, "");
var.setIntValue(0);
programStack.push(var);
}
break;
}
case BC_LOADSVAR: {
uint16_t id = f->bytecode()->getUInt16(bci + 1);
map<uint16_t, Var>::iterator iter = memory.find(id);
if (iter != memory.end()) {
programStack.push(iter->second);
} else {
//std::cerr << "Can't load variable " << id << "!\n";
Var var(VT_STRING, "");
var.setStringValue("");
programStack.push(var);
}
break;
}
case BC_STOREDVAR:
case BC_STOREIVAR:
case BC_STORESVAR: {
uint16_t id = f->bytecode()->getUInt16(bci + 1);
map<uint16_t, Var>::iterator iter = memory.find(id);
if (iter != memory.end()) {
iter->second = programStack.top();
} else {
memory.insert(make_pair(id, programStack.top()));
}
programStack.pop();
break;
}
case BC_DCMP: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.pop();
Var result(VT_INT, "");
if (leftOperand.getDoubleValue() > rightOperand.getDoubleValue()) {
result.setIntValue(1);
} else if (leftOperand.getDoubleValue() == rightOperand.getDoubleValue()) {
result.setIntValue(0);
} else {
result.setIntValue(-1);
}
programStack.push(result);
break;
}
case BC_ICMP: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.pop();
Var result(VT_INT, "");
if (leftOperand.getIntValue() > rightOperand.getIntValue()) {
result.setIntValue(1);
} else if (leftOperand.getIntValue() == rightOperand.getIntValue()) {
result.setIntValue(0);
} else {
result.setIntValue(-1);
}
programStack.push(result);
break;
}
case BC_JA: {
bci += (f->bytecode()->getInt16(bci + 1));
continue;
}
case BC_IFICMPNE: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.push(leftOperand);
if (leftOperand.getIntValue() != rightOperand.getIntValue()) {
bci += (f->bytecode()->getInt16(bci + 1));
continue;
}
break;
}
case BC_IFICMPE: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.push(leftOperand);
if (leftOperand.getIntValue() == rightOperand.getIntValue()) {
bci += (f->bytecode()->getInt16(bci + 1));
continue;
}
break;
}
case BC_IFICMPG: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.push(leftOperand);
if (leftOperand.getIntValue() > rightOperand.getIntValue()) {
bci += (f->bytecode()->getInt16(bci + 1));
continue;
}
break;
}
case BC_IFICMPGE: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.push(leftOperand);
if (leftOperand.getIntValue() >= rightOperand.getIntValue()) {
bci += (f->bytecode()->getInt16(bci + 1));
continue;
}
break;
}
case BC_IFICMPL: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.push(leftOperand);
if (leftOperand.getIntValue() < rightOperand.getIntValue()) {
bci += (f->bytecode()->getInt16(bci + 1));
continue;
}
break;
}
case BC_IFICMPLE: {
Var leftOperand = programStack.top();
programStack.pop();
Var rightOperand = programStack.top();
programStack.push(leftOperand);
if (leftOperand.getIntValue() <= rightOperand.getIntValue()) {
bci += (f->bytecode()->getInt16(bci + 1));
continue;
}
break;
}
case BC_STOP: {
return;
}
case BC_CALL: {
int id = f->bytecode()->getUInt16(bci + 1);
BytecodeFunction* functionToCall = (BytecodeFunction*) functionById(id);
returnAddresses.push(bci + commandLen[insn]);
returnLocations.push(f);
bci = 0;
f = functionToCall;
continue;
}
case BC_RETURN: {
f = returnLocations.top();
returnLocations.pop();
bci = returnAddresses.top();
returnAddresses.pop();
continue;
}
default: {
std::cerr << "Unknown instruction!\n";
return;
}
}
bci += commandLen[insn];
}
}