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Crystal Beans from Dungeon Explorer/Patterns
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| Patterns | |
| Game | Crystal Beans From Dungeon Explorer |
| Start Address | 0x121CC7 |
| End Address | 0x12A08C |
| # of Entries | 92 |
| Entry Length | variable |
| Total Length | 33734 bytes (0x83C6) |
| Back to the ROM map | |
The Patterns describes the instruments and the channels used in songs.
Format
Instrument used
- Length: variable
- Offset within entry: 0x0-?
- Range of values: 0-60,255 (0x0-0x3C, 0xFF)
List of instrument indices (1 byte each) terminated by a $FF byte
Number of channel pointers in pattern
- Length: 1
- Offset within entry: variable
- Range of values: 0-255 (0x0-0xFF)
Channel pointers
- Length: Number of channel pointers in pattern * 2
- Offset within entry: variable
- Range of values: ?
List of 16-bits pointers using this pointer's address + 2 as a base
Channel data
Example:
0x121CC9: 00 01 02 03 04 05 06 07 FF 07 0C 00 10 01 E5 01 0x121CD9: C3 02 5B 04 98 04 5F 05 ...
- 0x121CC9: Instrument used = 0, 1, 2, 3, 4, 5, 6, 7
- 0x121CD2: Number of channels = 7
- 0x121CD3: Channel pointer 0 = 0x121CE1 (0x121CD5 + 0x000C)
- 0x121CD5: Channel pointer 1 = 0x121DE7 (0x121CD7 + 0x0110)
- 0x121CD7: Channel pointer 2 = 0x121EBE (0x121CD9 + 0x01E5)
- 0x121CD9: Channel pointer 3 = 0x121F9E (0x121CDB + 0x02C3)
- 0x121CDB: Channel pointer 4 = 0x122138 (0x121CDD + 0x045B)
- 0x121CDD: Channel pointer 5 = 0x122177 (0x121CDF + 0x0498)
- 0x121CDF: Channel pointer 6 = 0x122240 (0x121CE1 + 0x055F)