NSFDRV: Difference between revisions
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== File Format == | == File Format == | ||
There is 8 bytes information of sound driver after NSF header. | |||
This 8 bytes information is on actual rom image of 6502. | |||
offset # of bytes Function | offset # of bytes Function | ||
---------------------------- | ---------------------------- | ||
$0000 - $007F NSF Header | $0000 - $007F NSF Header (128byte) | ||
$0080 - $0085 Name of sound driver (ASCII) | $0080 - $0085 Name of sound driver (ASCII) | ||
$0086 Version integral number | $0086 Version integral number | ||
$0087 Version integral number | $0087 Version integral number | ||
Revision as of 13:35, 26 June 2020
NSFDRV is to Include the information of sound driver to NSF.
Background
A some old sound driver for chiptune has bug as follows.
- In N163 audio, length of waveform is not set correctly.
- FDC audio is not enable.
NSFDRV is to slove this problem.
- NSF Player can detect sound driver, and can fix the bug of old sound driver such as mck.
- User can assert that user's NSF is original easily. (NSF is not ripped data from rom.)
- If occur BUG in sound driver, Developer can get information of version number from NSF file for the debug.
File Format
There is 8 bytes information of sound driver after NSF header. This 8 bytes information is on actual rom image of 6502.
offset # of bytes Function
---------------------------- $0000 - $007F NSF Header (128byte) $0080 - $0085 Name of sound driver (ASCII) $0086 Version integral number $0087 Version integral number
