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THUNDER FORCE2/Tutorials: Difference between revisions
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| Line 13: | Line 13: | ||
0C: w PSG Voices bank pointer | 0C: w PSG Voices bank pointer | ||
0E: w End of file offset | 0E: w End of file offset | ||
</pre> | </pre> | ||
Revision as of 18:41, 16 June 2017
Music Hacking
BGM Header format
00: b Number of channels (always must be 09h = 6 FM + 3 PSG) 01: b Volume (99 = max, 0 = min) 02: b Tempo modifier 03: b Pitch modifier 04: w Volume table pointer 06: w Channel tracks table pointer 08: w Patterns table pointer 0A: w FM Voices bank pointer 0C: w PSG Voices bank pointer 0E: w End of file offset
Volume Controll for each channel
10: Volume for channel 1 11: Volume for channel 2 12: Volume for channel 3 13: Volume for channel 4 14: Volume for channel 5 15: Volume for channel 6 16: Volume for PSG 1 17: Volume for PSG 2 18: Volume for PSG 3
Channel Pointer
19: Pointer to channel 1 1B: Pointer to channel 2 1D: Pointer to channel 3 1F: Pointer to channel 4 21: Pointer to channel 5 23: Pointer to channel 6 25: Pointer to PSG 1 27: Pointer to PSG 2
Value Definitions
$80-$DF Notes $E0-$FF Coordination flags
Music Notes Value
C-1: 80 C#1: 81 D-1: 82 D#1: 83 E-1: 84 F-1: 85 F#1: 86 G-1: 87 G#1: 88 A-1: 89 A#1: 8A B-1: 8B C-2: 8C C#2: 8D D-2: 8E D#2: 8F E-2: 90 F-2: 91 F#2: 92 G-2: 93 G#2: 94 A-2: 95 A#2: 96 B-2: 97 C-3: 98 C#3: 99 D-3: 9A D#3: 9B E-3: 9C F-3: 9D F#3: 9E G-3: 9F G#3: A0 A-3: A1 A#3: A2 B-3: A3 C-4: A4 C#4: A5 D-4: A6 D#4: A7 E-4: A8 F-4: A9 F#4: AA G-4: AB G#4: AC A-4: AD A#4: AE B-4: AF C-5: B0 C#5: B1 D-5: B2 D#5: B3 E-5: B4 F-5: B5 F#5: B6 G-5: B7 G#5: B8 A-5: B9 A#5: BA B-5: BB C-6: BC C#6: BD D-6: BE D#6: BF E-6: C0 F-6: C1 F#6: C2 G-6: C3 G#6: C4 A-6: C5 A#6: C6 B-6: C7 C-7: C8 C#7: C9 D-7: CA D#7: CB E-7: CC F-7: CD F#7: CE G-7: CF G#7: D0 A-7: D1 A#7: D2 B-7: D3 C-8: D4 C#8: D5 D-8: D6 D#8: D7 E-8: D8 F-8: D9 F#8: DA G-8: DB G#8: DC A-8: DD A#8: DE B-8: DF
Coordination flags
E0: Instrument number Parameters: E0 xx E8: Pitch ? Parameters: E8 xx E9: ? Parameters: E9 xx EC: Loop; EC 00 is infinity loop. Parameters: EC xx ED: Fade in Parameters: ED xx