void ShortDataType::AssignToVariable(VariableSymbol* variable)
{
Instruction* instruction;
Parser* parser = g_app->GetParser();
// Allocate register.
Register reg = parser->AllocateRegister(this);
Register reg16Bit = parser->Register32BitTo16Bit(reg);
Register thisReg = parser->AllocateRegister(new IntDataType());
// Pop value into a register.
instruction = new Instruction(parser->GetInstructionScope(), OPCODE_POP, parser->GetCurrentToken());
instruction->AddRegisterOperand(reg);
// Pop the pointer to the class off the stack.
if (variable->VariableType == VT_FIELD)
{
instruction = new Instruction(parser->GetInstructionScope(), OPCODE_POP, parser->GetCurrentToken());
instruction->AddRegisterOperand(thisReg);
}
// Assign value to variable.
instruction = new Instruction(parser->GetInstructionScope(), OPCODE_MOV, parser->GetCurrentToken());
instruction->AddOperand(parser->GetVariableAccessOperand(variable, 0, thisReg));
instruction->AddRegisterOperand(reg16Bit);
// Push "this" variable back into stack.
if (variable->VariableType == VT_FIELD)
{
instruction = new Instruction(parser->GetInstructionScope(), OPCODE_PUSH, parser->GetCurrentToken());
instruction->AddRegisterOperand(thisReg);
}
// Deallocate register.
parser->DeallocateRegister(reg);
parser->DeallocateRegister(thisReg);
}
void ShortDataType::PushVariableValue(VariableSymbol* variable)
{
Instruction* instruction;
Parser* parser = g_app->GetParser();
// Allocate register.
Register reg = parser->AllocateRegister(this);
Register thisReg = parser->AllocateRegister(new IntDataType());
// Pop the pointer to the class off the stack.
if (variable->VariableType == VT_FIELD)
{
instruction = new Instruction(parser->GetInstructionScope(), OPCODE_POP, parser->GetCurrentToken());
instruction->AddRegisterOperand(thisReg);
}
// Move into register so we can pad to 32bit.
instruction = new Instruction(parser->GetInstructionScope(), OPCODE_MOVZX, parser->GetCurrentToken());
instruction->AddRegisterOperand(reg);
instruction->AddOperand(parser->GetVariableAccessOperand(variable, 0, thisReg));
// Push "this" variable back into stack.
if (variable->VariableType == VT_FIELD)
{
instruction = new Instruction(parser->GetInstructionScope(), OPCODE_PUSH, parser->GetCurrentToken());
instruction->AddRegisterOperand(thisReg);
}
// Push register onto the stack.
instruction = new Instruction(parser->GetInstructionScope(), OPCODE_PUSH, parser->GetCurrentToken());
instruction->AddRegisterOperand(reg);
// Deallocate register.
parser->DeallocateRegister(reg);
parser->DeallocateRegister(thisReg);
}