The .669 format is a module format for digital music. OFFSET Count TYPE Description 0000h 1 word ID=6669h 0002h 108 byte ASCII song message 006Eh 1 byte Number of saved samples (0-40h) ="NOS" 006Fh 1 byte Number of saved patterns (0-80h) ="NOP" 0070h 1 byte Loop order number 0071h 128 byte Order list 00F1h 128 byte Tempo list for patterns 0171h 128 byte Break location list for patterns 01F1h "NOS" rec Sample data The sample data is in the file for "NOS" 13 byte ASCIIZ filename of instrument 1 dword Length of instrument sample 1 dword Offset of beginning of loop 1 dword Offset of end of loop 01F1h+ "NOP"*600 rec The note patterns "NOS"*19h Those patterns are repeated for each row, and the array of these is repeated 64 times for each pattern. 3 byte Note(see table 0000) 01F1h+ ? byte Sample data (unsigned) "NOS"*0x19+ "NOP"*0x600 (Table 0000) 669 Note format Each note looks like this : BYTE[0]: BYTE[1]: BYTE[2]: nnnnnnii iiiivvvv ccccdddd n : note value i : 6-bit instrument number v : 4-bit volume c : command data (Protracker format mapped) : 0 = a 1 = b 2 = c 3 = d 4 = e 5 = f d : command value (Protracker format) Special values for byte 0 : 0FEh : no note, only volume 0FFh : no note or no command, if byte 2 = 0FFh EXTENSION:669 OCCURENCES:PC SEE ALSO:MOD PROGRAMS:669 Mod Composer, DMP VALIDATION:
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