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Adding the reset

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This commit is contained in:
AnonymusRaccoon
2020-02-12 16:40:06 +01:00
parent 8addb29610
commit 17c0cb8660
3 changed files with 53 additions and 4 deletions
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sources/CPU/CPU.cpp
+23 -3
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@@ -15,7 +15,7 @@ namespace ComSquare::CPU
CPU::CPU(std::shared_ptr<Memory::MemoryBus> bus, Cartridge::Header &cartridgeHeader)
: _bus(std::move(bus)), _cartridgeHeader(cartridgeHeader)
{
this->_registers.pc = this->_cartridgeHeader.emulationInterrupts.reset;
this->RESB();
}
//! @bref The CPU's internal registers starts at $4200 and finish at $421F.
@@ -220,11 +220,31 @@ namespace ComSquare::CPU
case Instructions::ADC_SRYi: return 7 + this->ADC(this->_getStackRelativeIndirectIndexedYAddr());
default:
return 0;
//throw InvalidOpcode("CPU", opcode);
throw InvalidOpcode("CPU", opcode);
}
}
void CPU::push(uint8_t data)
{
this->_bus->write(this->_registers.s--, data);
}
void CPU::push(uint16_t data)
{
this->_bus->write(this->_registers.s--, data);
this->_bus->write(this->_registers.s--, data << 8u);
}
uint8_t CPU::pop()
{
return this->_bus->read(this->_registers.s++);
}
uint16_t CPU::pop16()
{
return this->_bus->read(this->_registers.s++) + (this->_bus->read(this->_registers.s++) << 8u);
}
////////////////////////////////////////////////////////////////////
/// Addressing modes
////////////////////////////////////////////////////////////////////