refactor: move emulation logic into sys

1 files changed, 0 insertions, 68 deletions

diff --git a/lib/nes/cartridge.cc b/lib/nes/cartridge.cc
deleted file mode 100644
index bd8e7d3..0000000
--- a/lib/nes/cartridge.cc
+++ /dev/null
@@ -1,68 +0,0 @@
-#include "nes/cartridge.hh"
-#include "nes/util/status.hh"
-#include <fstream>
-
-namespace nes
-{
-	cartridge::cartridge(status const status)
-		: status_{ status }
-	{
-	}
-
-	auto cartridge::from_data(void const* data, std::size_t const length) -> cartridge
-	{
-		// See: https://www.nesdev.org/wiki/INES
-
-		auto const bytes = static_cast<std::uint8_t const*>(data);
-		auto res = cartridge{ status::success };
-
-		// Parse header.
-		if (length < header_length) { return cartridge{ status::error_invalid_ines_data }; }
-		auto const h = header{ bytes };
-		if (h.get_magic_0() != 'N' || h.get_magic_1() != 'E' || h.get_magic_2() != 'S' || h.get_magic_3() != 0x1A)
-		{
-			return cartridge{ status::error_invalid_ines_data };
-		}
-		auto const mapper_number = static_cast<std::uint8_t>((h.get_mapper_high() << 4) | (h.get_mapper_low() << 0));
-
-		res.mapper_ = &mapper::get(mapper_number);
-		res.name_table_arrangement_ = h.get_name_table_arrangement();
-
-		// Load program data.
-		auto offset = std::size_t{ 16 };
-		if (h.get_has_trainer()) { offset += 512; }
-
-		auto const prg_rom_size = h.get_prg_rom_banks() * prg_rom_bank_size;
-		if (length < offset + prg_rom_size) { return cartridge{ status::error_invalid_ines_data }; }
-		res.prg_rom_ = std::vector(&bytes[offset], &bytes[offset + prg_rom_size]);
-
-		offset += prg_rom_size;
-
-		auto const chr_rom_size = h.get_chr_rom_banks() * chr_rom_bank_size;
-		if (length < offset + chr_rom_size) { return cartridge{ status::error_invalid_ines_data }; }
-		res.chr_rom_ = std::vector(&bytes[offset], &bytes[offset + chr_rom_size]);
-
-		res.ram_ = std::vector(std::max(h.get_ram_banks(), 1u) * ram_bank_size, std::uint8_t{ 0 });
-
-		if (auto const status = res.get_mapper().validate(res); status != status::success)
-		{
-			return cartridge{ status };
-		}
-
-		return res;
-	}
-
-	auto cartridge::from_file(std::string_view const path) -> cartridge
-	{
-		auto stream = std::ifstream{ path, std::ios::binary };
-		if (!stream.good()) { return cartridge{ status::error_system_error }; }
-
-		stream.seekg(0, std::ios::end);
-		auto const length = stream.tellg();
-		stream.seekg(0, std::ios::beg);
-		auto data = std::vector<std::uint8_t>(static_cast<std::size_t>(length));
-		stream.read(reinterpret_cast<char*>(data.data()), length);
-
-		return from_data(data.data(), data.size());
-	}
-} // namespace nes
\ No newline at end of file