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| NSFへの音源ドライバー情報の埋め込み(案)
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| Include the information of sound driver to NSF (Proposal)
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| ---------------------------------------------------------
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| * This document is written by Shift-JIS.
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| 改訂履歴(Revision)
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| ━━━━━━━━━━━━━━━━
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| May. 7, 2013 案(Proposal)
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| Written by S.W.
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| May. 8, 2013 案(Proposal)
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| Proposal by @bkc_alf
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| Written by S.W.
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| May. 9, 2013 案(Proposal)
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| Written by S.W. : Write english.
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| May.11, 2013 案(Proposal)
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| Written by S.W. : Addition FamiTracker NSF Driver
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| Sep. 3, 2013 案(Proposal)
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| Written by S.W. : Addition OFGS
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| 利点(merit)
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| ━━━━━━━━━━━━━━━━
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| ・NSF Player can detect sound driver name.
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| (some programmer of NSF Player want to detect the name of sound driver for chiptune.)
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| 各種NSFプレイヤーが、音源ドライバーを判別できるようになる。
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| (古い音源ドライバーのバグ補正機能が実装されているNSFプレイヤーの作者からの要望でもある。)
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| (バグ補正機能を働かせるか否かの判定のためにも必要。)
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| ・Assertion that this NSF is original easily.(Is not ripped data)
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| NSFが自作のオリジナルである(抜き出しでない)ことを簡易的に主張できる。
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| ・If occur BUG, We can get information of version number for Debug.
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| バグが発生した際に、デバッグ用の情報として、使われたドライバーのヴァージョン番号が解る。
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| ファイル構造(File Struct)
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| ━━━━━━━━━━━━━━━━
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| __________________________
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| 0000h |
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| | NSF Header (128byte)
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| 007Fh |_________________________
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| 0080h |
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| | Sound Driver information
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| | ( 8byte in 6502 memory area )
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| 0087h |_________________________
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| 0088h |
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| | CODE and DATA
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| 音源ドライバー情報の構造(Struct of sound driver information)
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| ━━━━━━━━━━━━━━━━
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| Offset Size Contents
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| ------------------------
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| 0000h 6byte ASCII Strings of sound driver (software) name.(音源ドライバー名)
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| 0006h 1byte Version integral number (バージョン整数部)
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| 0007h 1byte Version decimal number (バージョン小数部)
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| 音源ドライバー名一覧(List of sound driver)
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| ━━━━━━━━━━━━━━━━
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| ------------------------
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| Name :
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| URL :
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| ASCII :
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| Binary :
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| ------------------------
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| Name :
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| URL :
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| ASCII :
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| Binary :
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| ------------------------
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| Name : OFGS
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| URL : http://offgao.no-ip.org/ofgs/
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| ASCII : "OFGS "
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| Binary : 4F 46 47 53 20 20
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| ------------------------
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| Name : FamiTracker NSF Driver
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| URL : http://www.famitracker.com
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| ASCII : "FTDRV "
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| Binary : 46 54 44 52 56 20
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| ------------------------
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| Name : NES Sound Driver & Library (nsd.lib)
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| URL : http://shaw.la.coocan.jp/nsdl/
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| ASCII : "NSDL "
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| Binary : 4E 53 44 4C 20 20 ... (LSR $4453 / JMP $2020)
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| ------------------------
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| Name : Development code (for no-bug sound driver)
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| ASCII : " "
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| Binary : 20 20 20 20 20 20 ... (JSR $2020 / JSR $2020)
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| ------------------------
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| Name : Unknown sound driver (include ripped data, and old sound driver)
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| ASCII : "??????" (other)
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| Binary : ?? ?? ?? ?? ?? ?? (other)
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| ------------------------------------------------
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| NSFプレイヤーに、古い音源ドライバーの為のバグ補正機能を実装する場合は、
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| 何れの音源ドライバーにも該当しなかった場合に古い音源ドライバーと判定し、
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| バグ補正機能を有効とすることを推奨する。
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| これは、バグ補正機能が他の音源ドライバーに影響を与えるため。
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| Old chiptune sound driver have some bugs.
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| Some NSF Player adjust this bug of old chiptune sound driver.
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| But, It adjuster affect the new sound driver without bug.
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| Therefore, this information is need now.
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| NSF Player detect the sound driver name.
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| If sound driver have not bug, then adjuster is disable.
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| If sound driver is unknown (old sound driver), then adjuster is enable.
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| 補足(supplementation)
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| ━━━━━━━━━━━━━━━━
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| 以下のNSF Playerは、この情報を検出します。
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| The following NSF Player detect this information.
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| ・TNS-HFC4 next firmware
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