cpu: bugfixes

1 files changed, 55 insertions, 0 deletions

diff --git a/src/status.hh b/src/status.hh
new file mode 100644
index 0000000..705ae6e
--- /dev/null
+++ b/src/status.hh
@@ -0,0 +1,55 @@
+#pragma once
+
+#include "nes/util/cycle_count.hh"
+#include <vector>
+#include <cstdint>
+
+namespace test
+{
+	/// System status used for comparison.
+	struct status
+	{
+		explicit status() = default;
+
+		nes::cycle_count cpu_cycle;
+		std::vector<std::uint8_t> ram;
+		std::vector<std::uint8_t> sram;
+		struct
+		{
+			std::uint16_t pc{};
+			std::uint8_t sp{};
+			std::uint8_t a{};
+			std::uint8_t x{};
+			std::uint8_t y{};
+			std::uint8_t p{};
+			bool c{};
+			bool z{};
+			bool i{};
+			bool d{};
+			bool b{};
+			bool v{};
+			bool n{};
+		} registers{};
+
+		static auto equal(status const& a, status const& b) -> bool
+		{
+			if (a.cpu_cycle != b.cpu_cycle) { return false; }
+			if (a.ram != b.ram) { return false; }
+			if (a.sram != b.sram) { return false; }
+			if (a.registers.pc != b.registers.pc) { return false; }
+			if (a.registers.sp != b.registers.sp) { return false; }
+			if (a.registers.a != b.registers.a) { return false; }
+			if (a.registers.x != b.registers.x) { return false; }
+			if (a.registers.y != b.registers.y) { return false; }
+			if (a.registers.p != b.registers.p) { return false; }
+			if (a.registers.c != b.registers.c) { return false; }
+			if (a.registers.z != b.registers.z) { return false; }
+			if (a.registers.i != b.registers.i) { return false; }
+			if (a.registers.d != b.registers.d) { return false; }
+			if (a.registers.b != b.registers.b) { return false; }
+			if (a.registers.v != b.registers.v) { return false; }
+			if (a.registers.n != b.registers.n) { return false; }
+			return true;
+		}
+	};
+} // namespace test
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