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122 lines
5.2 KiB
C++
122 lines
5.2 KiB
C++
//
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// Z80Storage.cpp
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// Clock Signal
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//
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// Created by Thomas Harte on 01/09/2017.
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// Copyright 2017 Thomas Harte. All rights reserved.
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//
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#include "../Z80.hpp"
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using namespace CPU::Z80;
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void ProcessorBase::reset_power_on() {
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request_status_ &= ~Interrupt::PowerOn;
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last_request_status_ &= ~Interrupt::PowerOn;
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}
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uint16_t ProcessorBase::get_value_of_register(Register r) {
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switch (r) {
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case Register::ProgramCounter: return pc_.full;
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case Register::StackPointer: return sp_.full;
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case Register::A: return a_;
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case Register::Flags: return get_flags();
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case Register::AF: return static_cast<uint16_t>((a_ << 8) | get_flags());
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case Register::B: return bc_.halves.high;
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case Register::C: return bc_.halves.low;
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case Register::BC: return bc_.full;
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case Register::D: return de_.halves.high;
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case Register::E: return de_.halves.low;
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case Register::DE: return de_.full;
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case Register::H: return hl_.halves.high;
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case Register::L: return hl_.halves.low;
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case Register::HL: return hl_.full;
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case Register::ADash: return afDash_.halves.high;
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case Register::FlagsDash: return afDash_.halves.low;
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case Register::AFDash: return afDash_.full;
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case Register::BDash: return bcDash_.halves.high;
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case Register::CDash: return bcDash_.halves.low;
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case Register::BCDash: return bcDash_.full;
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case Register::DDash: return deDash_.halves.high;
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case Register::EDash: return deDash_.halves.low;
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case Register::DEDash: return deDash_.full;
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case Register::HDash: return hlDash_.halves.high;
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case Register::LDash: return hlDash_.halves.low;
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case Register::HLDash: return hlDash_.full;
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case Register::IXh: return ix_.halves.high;
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case Register::IXl: return ix_.halves.low;
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case Register::IX: return ix_.full;
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case Register::IYh: return iy_.halves.high;
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case Register::IYl: return iy_.halves.low;
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case Register::IY: return iy_.full;
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case Register::R: return ir_.halves.low;
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case Register::I: return ir_.halves.high;
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case Register::Refresh: return ir_.full;
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case Register::IFF1: return iff1_ ? 1 : 0;
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case Register::IFF2: return iff2_ ? 1 : 0;
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case Register::IM: return static_cast<uint16_t>(interrupt_mode_);
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case Register::MemPtr: return memptr_.full;
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default: return 0;
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}
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}
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void ProcessorBase::set_value_of_register(Register r, uint16_t value) {
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switch (r) {
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case Register::ProgramCounter: pc_.full = value; break;
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case Register::StackPointer: sp_.full = value; break;
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case Register::A: a_ = static_cast<uint8_t>(value); break;
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case Register::AF: a_ = static_cast<uint8_t>(value >> 8); // deliberate fallthrough...
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case Register::Flags: set_flags(static_cast<uint8_t>(value)); break;
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case Register::B: bc_.halves.high = static_cast<uint8_t>(value); break;
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case Register::C: bc_.halves.low = static_cast<uint8_t>(value); break;
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case Register::BC: bc_.full = value; break;
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case Register::D: de_.halves.high = static_cast<uint8_t>(value); break;
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case Register::E: de_.halves.low = static_cast<uint8_t>(value); break;
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case Register::DE: de_.full = value; break;
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case Register::H: hl_.halves.high = static_cast<uint8_t>(value); break;
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case Register::L: hl_.halves.low = static_cast<uint8_t>(value); break;
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case Register::HL: hl_.full = value; break;
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case Register::ADash: afDash_.halves.high = static_cast<uint8_t>(value); break;
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case Register::FlagsDash: afDash_.halves.low = static_cast<uint8_t>(value); break;
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case Register::AFDash: afDash_.full = value; break;
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case Register::BDash: bcDash_.halves.high = static_cast<uint8_t>(value); break;
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case Register::CDash: bcDash_.halves.low = static_cast<uint8_t>(value); break;
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case Register::BCDash: bcDash_.full = value; break;
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case Register::DDash: deDash_.halves.high = static_cast<uint8_t>(value); break;
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case Register::EDash: deDash_.halves.low = static_cast<uint8_t>(value); break;
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case Register::DEDash: deDash_.full = value; break;
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case Register::HDash: hlDash_.halves.high = static_cast<uint8_t>(value); break;
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case Register::LDash: hlDash_.halves.low = static_cast<uint8_t>(value); break;
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case Register::HLDash: hlDash_.full = value; break;
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case Register::IXh: ix_.halves.high = static_cast<uint8_t>(value); break;
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case Register::IXl: ix_.halves.low = static_cast<uint8_t>(value); break;
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case Register::IX: ix_.full = value; break;
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case Register::IYh: iy_.halves.high = static_cast<uint8_t>(value); break;
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case Register::IYl: iy_.halves.low = static_cast<uint8_t>(value); break;
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case Register::IY: iy_.full = value; break;
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case Register::R: ir_.halves.low = static_cast<uint8_t>(value); break;
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case Register::I: ir_.halves.high = static_cast<uint8_t>(value); break;
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case Register::Refresh: ir_.full = value; break;
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case Register::IFF1: iff1_ = !!value; break;
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case Register::IFF2: iff2_ = !!value; break;
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case Register::IM: interrupt_mode_ = value % 3; break;
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case Register::MemPtr: memptr_.full = value; break;
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default: break;
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}
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}
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