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CLK/Machines/MSX/Cartridges/ASCII8kb.hpp
2024-01-16 23:34:46 -05:00

60 lines
1.5 KiB
C++

//
// ASCII8kb.hpp
// Clock Signal
//
// Created by Thomas Harte on 04/01/2018.
// Copyright 2018 Thomas Harte. All rights reserved.
//
#pragma once
#include "../MemorySlotHandler.hpp"
namespace MSX::Cartridge {
class ASCII8kbROMSlotHandler: public MemorySlotHandler {
public:
ASCII8kbROMSlotHandler(MSX::MemorySlot &slot) : slot_(slot) {}
void write(uint16_t address, uint8_t value, bool pc_is_outside_bios) final {
switch(address >> 11) {
default:
if(pc_is_outside_bios) confidence_counter_.add_miss();
break;
case 0xc:
if(pc_is_outside_bios) {
if(address == 0x6000 || address == 0x60ff) confidence_counter_.add_hit(); else confidence_counter_.add_equivocal();
}
slot_.map(value * 0x2000, 0x4000, 0x2000);
break;
case 0xd:
if(pc_is_outside_bios) {
if(address == 0x6800 || address == 0x68ff) confidence_counter_.add_hit(); else confidence_counter_.add_equivocal();
}
slot_.map(value * 0x2000, 0x6000, 0x2000);
break;
case 0xe:
if(pc_is_outside_bios) {
if(address == 0x7000 || address == 0x70ff) confidence_counter_.add_hit(); else confidence_counter_.add_equivocal();
}
slot_.map(value * 0x2000, 0x8000, 0x2000);
break;
case 0xf:
if(pc_is_outside_bios) {
if(address == 0x7800 || address == 0x78ff) confidence_counter_.add_hit(); else confidence_counter_.add_equivocal();
}
slot_.map(value * 0x2000, 0xa000, 0x2000);
break;
}
}
virtual std::string debug_type() final {
return "A8";
}
private:
MSX::MemorySlot &slot_;
};
}