Eureka Packer format Created by Eureka / Concept (1990-91) Analysed by Asle / ReDoX (asle@mygale.org) Source: - Own converted musics with the packer (bugged btw ..). - "EU.Enigma Year" sent to me by Gryzor (thx !) Offset size (byte) Comment ------ ----------- ------- 0 14h Title *************************************** * the following is repeated 31 times * * with 30 bytes description for 1 smp * ****************************************************** * 20 22 Sample Name * (14h) (16h) * 42 2 Sample Size / 2 * (2Ah) * 44 1 Finetune (0 -> F) * (2Ch) * 45 1 Volume (0 - 40h) * (2Dh) * 46 2 Loop Start / 2 * (2Eh) * 48 2 Loop Size / 2 * (30h) * * ****************************************************** 950 1 Number of pattern to play (3B6h) 951 1 noisetracker byte set to $7F (3B7h) 952 128 pattern table (3B8h) (80h) 1080 4 address of the sample data (438h) 1084 ? track table. It is the address of each (43Ch) track for each pattern. Each value is a word. So, first pattern will be defined by the four first tracks (4 first words). ? 24 ?!? (no clue !) ? ? tracks datas. Refer to the track address table upward. All the files I've packed so far DO have the first track address at $850, but ... . each track is packed as follow : case 1: (same as ptk with the two first bits both set to 0) -- Sample number --- / /\ || | | 0000 0000 0000 0000 0000 0000 0000 0000 || | | | | | | || \ / \/ \ / || Note Period effect effect \ parameter -- descriptions bits both set to 0 case 2: (only an effect with its parameter) 0100 0000 0000 0000 || \ / \ / || effect effect || parameter | \ \ - description bit 6 set to 1 - description bit 7 set to 0 case 3: (no effect nor effect parameter) - description bit 7 set to 1 / - description bit 6 set to 0 | / || 1000 0000 0000 0000 0000 0000 | | | | | | four \ | \ / lower bits \| Note Period of smp nbr | four higher bits of smp nbr case 4: (empty rows ..) - description bit 7 set to 1 / - description bit 6 set to 1 | / || 1100 0000 | | \ / -------- Number of empty row to bypass (-1 !). Follow Sample datas stored like Protracker. Nothing is packed..