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Start adding comparison operations to EightBit classes

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This commit is contained in:
Adrian Conlon
2021-12-27 14:24:38 +00:00
parent af7679505c
commit 945fcefb36
16 changed files with 154 additions and 34 deletions
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12
LR35902/inc/LR35902.h
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@@ -26,10 +26,14 @@ namespace EightBit {
Signal<LR35902> ExecutingInstruction;
Signal<LR35902> ExecutedInstruction;
[[nodiscard]] register16_t& AF() noexcept final;
[[nodiscard]] register16_t& BC() noexcept final;
[[nodiscard]] register16_t& DE() noexcept final;
[[nodiscard]] register16_t& HL() noexcept final;
[[nodiscard]] const register16_t& AF() const noexcept final;
[[nodiscard]] auto& AF() noexcept { return IntelProcessor::AF(); }
[[nodiscard]] const register16_t& BC() const noexcept final;
[[nodiscard]] auto& BC() noexcept { return IntelProcessor::BC(); }
[[nodiscard]] const register16_t& DE() const noexcept final;
[[nodiscard]] auto& DE() noexcept { return IntelProcessor::DE(); }
[[nodiscard]] const register16_t& HL() const noexcept final;
[[nodiscard]] auto& HL() noexcept { return IntelProcessor::HL(); }
bool& IME() noexcept { return m_ime; }

11
LR35902/src/LR35902.cpp
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@@ -13,20 +13,21 @@ EightBit::GameBoy::LR35902::LR35902(Bus& memory)
});
}
EightBit::register16_t& EightBit::GameBoy::LR35902::AF() noexcept {
af.low = higherNibble(af.low);
const EightBit::register16_t& EightBit::GameBoy::LR35902::AF() const noexcept {
auto* gb = const_cast<LR35902*>(this);
gb->af.low = higherNibble(af.low);
return af;
}
EightBit::register16_t& EightBit::GameBoy::LR35902::BC() noexcept {
const EightBit::register16_t& EightBit::GameBoy::LR35902::BC() const noexcept {
return bc;
}
EightBit::register16_t& EightBit::GameBoy::LR35902::DE() noexcept {
const EightBit::register16_t& EightBit::GameBoy::LR35902::DE() const noexcept {
return de;
}
EightBit::register16_t& EightBit::GameBoy::LR35902::HL() noexcept {
const EightBit::register16_t& EightBit::GameBoy::LR35902::HL() const noexcept {
return hl;
}