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