refactor: move emulation logic into sys

1 files changed, 0 insertions, 87 deletions

diff --git a/lib/nes/util/cycle-count.hh b/lib/nes/util/cycle-count.hh
deleted file mode 100644
index f1a4a7e..0000000
--- a/lib/nes/util/cycle-count.hh
+++ /dev/null
@@ -1,87 +0,0 @@
-#pragma once
-
-#include <chrono>
-
-namespace nes
-{
-	/// A cycle count that can be used for multiple components.
-	///
-	/// Each component can have a different clock frequency and this structure offers conversions between different
-	/// cycle counts.
-	class cycle_count
-	{
-		friend constexpr auto operator+(cycle_count, cycle_count) -> cycle_count;
-		friend constexpr auto operator-(cycle_count, cycle_count) -> cycle_count;
-		friend constexpr auto operator*(std::uint64_t, cycle_count) -> cycle_count;
-		friend constexpr auto operator*(cycle_count, std::uint64_t) -> cycle_count;
-		friend constexpr auto operator/(cycle_count, cycle_count) -> std::uint64_t;
-
-		std::uint64_t units_{ 0 }; // The most fine-granular cycle count (here: PPU cycles).
-
-		static constexpr auto ppu_cycle() -> cycle_count { return cycle_count{ 1 }; }
-		static constexpr auto cpu_cycle() -> cycle_count { return cycle_count{ 3 }; }
-		static constexpr auto second() -> cycle_count { return 1789773 * cpu_cycle(); }
-
-	public:
-		constexpr explicit cycle_count() = default;
-
-		constexpr auto operator+=(cycle_count const other) -> cycle_count& { return *this = *this + other; }
-		constexpr auto operator*=(std::uint64_t const other) -> cycle_count& { return *this = *this * other; }
-
-		static constexpr auto from_units(std::uint64_t const units) -> cycle_count
-		{
-			return cycle_count{ units };
-		}
-
-		static constexpr auto from_duration(std::chrono::microseconds const duration) -> cycle_count
-		{
-			return from_units(static_cast<std::uint64_t>(duration.count()) * second().get_units() / (1000 * 1000));
-		}
-
-		static constexpr auto from_cpu(std::uint64_t const cpu_cycles) -> cycle_count
-		{
-			return cpu_cycles * cpu_cycle();
-		}
-
-		static constexpr auto from_ppu(std::uint64_t const ppu_cycles) -> cycle_count
-		{
-			return ppu_cycles * ppu_cycle();
-		}
-
-		/// Value in implementation-defined units.
-		constexpr auto get_units() const -> std::uint64_t { return units_; }
-
-		constexpr auto to_duration() const -> std::chrono::microseconds
-		{
-			return std::chrono::microseconds{ get_units() * 1000 * 1000 / second().get_units() };
-		}
-
-		constexpr auto to_cpu() const -> std::uint64_t
-		{
-			return *this / cpu_cycle();
-		}
-
-		constexpr auto to_ppu() const -> std::uint64_t
-		{
-			return *this / ppu_cycle();
-		}
-
-	private:
-		constexpr explicit cycle_count(std::uint64_t const units)
-			: units_{ units }
-		{
-		}
-	};
-
-	constexpr auto operator==(cycle_count const a, cycle_count const b) -> bool { return a.get_units() == b.get_units(); }
-	constexpr auto operator!=(cycle_count const a, cycle_count const b) -> bool { return a.get_units() != b.get_units(); }
-	constexpr auto operator<(cycle_count const a, cycle_count const b) -> bool { return a.get_units() < b.get_units(); }
-	constexpr auto operator>(cycle_count const a, cycle_count const b) -> bool { return a.get_units() > b.get_units(); }
-	constexpr auto operator<=(cycle_count const a, cycle_count const b) -> bool { return a.get_units() <= b.get_units(); }
-	constexpr auto operator>=(cycle_count const a, cycle_count const b) -> bool { return a.get_units() >= b.get_units(); }
-	constexpr auto operator+(cycle_count const a, cycle_count const b) -> cycle_count { return cycle_count{ a.get_units() + b.get_units() }; }
-	constexpr auto operator-(cycle_count const a, cycle_count const b) -> cycle_count { return cycle_count{ a.get_units() - b.get_units() }; }
-	constexpr auto operator*(std::uint64_t const a, cycle_count const b) -> cycle_count { return cycle_count{ a * b.get_units() }; }
-	constexpr auto operator*(cycle_count const a, std::uint64_t const b) -> cycle_count { return cycle_count{ a.get_units() * b }; }
-	constexpr auto operator/(cycle_count const a, cycle_count const b) -> std::uint64_t { return a.get_units() / b.get_units(); }
-} // namespace nes
\ No newline at end of file