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Fix NES CPU, based on 6502 changes
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@ -11,7 +11,7 @@ namespace EightBit {
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virtual ~Ricoh2A03() = default;
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virtual ~Ricoh2A03() = default;
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protected:
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protected:
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virtual uint8_t sub(uint8_t operand, int borrow) noexcept final;
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uint8_t sub(uint8_t operand, int borrow) noexcept final;
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virtual uint8_t add(uint8_t operand, int carry) noexcept final;
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void adc() noexcept final;
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};
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};
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}
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}
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@ -6,11 +6,9 @@ EightBit::Ricoh2A03::Ricoh2A03(Bus& bus)
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}
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}
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uint8_t EightBit::Ricoh2A03::sub(uint8_t operand, int borrow) noexcept {
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uint8_t EightBit::Ricoh2A03::sub(uint8_t operand, int borrow) noexcept {
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const auto data = BUS().DATA();
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return MOS6502::sub_b(operand, borrow);
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return MOS6502::sub_b(operand ,data, borrow);
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}
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}
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uint8_t EightBit::Ricoh2A03::add(uint8_t operand, int carry) noexcept {
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void EightBit::Ricoh2A03::adc() noexcept {
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const auto data = BUS().DATA();
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MOS6502::adc_b();
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return MOS6502::add_b(operand, data, carry);
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}
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}
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