較正カートリッジ
私たち自身のカートリッジで、その画面はすべて測られるために作られている。実機からはスコープ、グラバー、カメラを通して、模型からは同じデコーダを通して読み、そのすべてを一つの道具が読む。どの画面にも、その名とフレーム番号を絵の中に描いた帯があるので、取り込んだ絵はいつも自分がどの画面のどのフレームかを告げる。
ROM とそのマニフェストはここで配布している: cal.nes と cal.json。製作手順のチェックサムが指すのと同じバイトだ。
計画、製作、画面、そして基板
- Planning the calibration cartridge: One cartridge whose every screen is built to be measured off the real console and the model through the same reader, each frame naming itself; colour, resolution, filtering and the pad.
- Building the calibration cart: From the idea of a frame that names itself, through a cartridge written with a sixty-line assembler, to the ROM in the model, its checksums, and the cartridge in a console.
- The calibration screens: The cartridge's screens as our own decoder sees them, the strip that names each frame, and what each screen is for; the grabber's frames join them once the cart is in a console.
- The blank boards and the programmer: Photographed and read: which board takes the calibration ROM's two chips, what the EPROM adapter is for, and what is still not known.
- The build, as it goes: The cartridge being made, one measured step at a time: the programmer on the bench, each chip written and read back whole, the board's jumpers read off both sides, the parts it takes, and what is still open.