EarthBound/Map Data/Palette Animation Secondary Pointer/Data Table

This is a sub-page of EarthBound/Map Data/Palette Animation Secondary Pointer.

Map Data:Palette Animation Secondary Pointer/Data Table
Game	EarthBound
Start Address	0x1FE75D
End Address	0x1FE81A
# of Entries	31
Entry Length	5 bytes(0x5) to 13 bytes(0xD)
Total Length	190 bytes (0xBE)
Back to the ROM map

Points to compressed map palette animation data (in the Compressed Palette Animation Data) and also contains metadata about the palette animations. Entries are found by first doing a lookup by Palette Animation Index in the Palette Animation Pointer Table.

Format

Data Pointer

• Length: 4 bytes(0x4)
• Offset within entry: 0x00
• Range of values: 0x00000000-0x00FFFFFF (long pointer)

Long pointer to the start of the compressed map palette animation data. In unmodified EarthBound, this will point into Compressed Palette Animation Data.

Number of Palettes

• Length: 1 byte(0x1)
• Offset within entry: 0x04
• Range of values: 0x00-0x08

Number of palettes in the decompressed animation data. EarthBound will not attempt to decompress the animation data if this value is zero.

Also number of bytes used for the following variable-length data. Can be up to 8 or it will overfill the buffer set aside to load the data.

Number of Frames per Palette

• Length: varies
• Offset within entry: 0x05
• Range of values: 0x01-0xff

For each animation palette, one byte to represent the number of frames that palette will be active before cycling to the next.

Entries

There are 9 different entries, but the 9th gets used 23 times. The 9th entry is just a pointer, which seems to be pointing at the Audio block at 0x1FEE46. The other 8 entries have pointers to the Palette Animation Table, but are also followed by a line of code of different lengths. The 9th entry has 00(NULL) included after the pointer.

Entry 1(0x1FE75D to 0x1FE765)

• Length: 9 bytes(0x9)
• Offset within entry: 0x00
• Range of values: 0x00-0xFF

1b e6 df 00 Pointer   04 0a 0a 0a 0a             Code

Entry 2(0x1FE766 to 0x1FE76E)

• Length: 9 bytes(0x9)
• Offset within entry: 0x0A
• Range of values: 0x00-0xFF

b2 e6 df 00 Pointer   04 0f 0f 0f 0f             Code

Entry 3(0x1FE76F to 0x1FE779)

• Length: 11 bytes(0xB)
• Offset within entry: 0x13
• Range of values: 0x00-0xFF

3d e7 df 00 Pointer   06 14 14 14 14 14 14       Code

Entry 4(0x1FE77A to 0x1FE781)

• Length: 8 bytes(0x9)
• Offset within entry: 0x00
• Range of values: 0x00-0xFF

e0 e8 df 00 Pointer   03 0f 0f 14                Code

Entry 5(0x1FE782 to 0x1FE78A)

• Length: 9 bytes(0x9)
• Offset within entry: 0x00
• Range of values: 0x00-0xFF

6c e9 df 00 Pointer   04 0f 0f 0f 0f             Code

Entry 6(0x1FE78B to 0x1FE792)

• Length: 8 bytes(0x8)
• Offset within entry: 0x00
• Range of values: 0x00-0xFF

56 ea df 00 Pointer   03 0f 0f 0f                Code

Entry 7(0x1FE793 to 0x1FE79A)

• Length: 8 bytes(0x8)
• Offset within entry: 0x00
• Range of values: 0x00-0xFF

31 eb df 00 Pointer   03 3c 08 08                Code

Entry 8(0x1FE79B to 0x1FE7A7)

• Length: 9 bytes(0x9)
• Offset within entry: 0x00
• Range of values: 0x00-0xFF

ac eb df 00 Pointer   08 1e 0a 0a 0a 0a 0a 0a 0a Code

Entry 9(0x1FE7A8 to 0x1FE81A)

• Length: 5 bytes(0x5)
• Offset within entry: 0x00
• Range of values: 0x00-0xFF

46 ec df 00 Pointer   00                         Code

A note about this pointer

Rather than list the same pointer over and over, it has just been listed here once. Entries 9-31 of the EarthBound:Map Data:Palette Animation Pointer Table all point to 23 seperate entries on this table, but all 23 have the exact same 5 byte pointer to $dfec46. This pointer is unused because EarthBound will not attempt to load it when the number of palettes byte is zero.