map.rim.md

MAP.RIM

Description

This file contains the map and probably some other things.

Structure

Please note that even though MIPS I is bi-endian, PSX is little endian.

Offset	Size (bytes)	Name	Description
0x0	0x800	padding	Padding. Initially it's mostly filled with 0xFF.
0x800	4	itemCount	Amount of items
0x804	itemCount * 4	itemOffsets	Offsets relative to 0x800. In function 0x80017540 each item's relative offset to memory is turned into absolute by adding the pointer to the MAP.RIM file + 0x800.
+ items * 4	items * 56	items	Items themselves!

Item types

Shared (unless said otherwise)

Offset	Size (bytes)	Name	Description
0x0	4	id	Index of a function from the function table @ 0x8007ED24. Only first two bytes are actually used.

Sizes do not include the shared fields.

Quad

ID: 0x00010000 (00 00 01 00)

Size: 52 bytes

Note: VXY* registers contain two signed 16-bit values, while VZ* registers takes a signed 16-bit value sign extended to 32 bits.

Offset	Size (bytes)	Name	Description
0x4	4	XY0	Loaded into VXY0 data register of GTE.
0x8	4	Z0	Loaded into VZ0 data register of GTE.
0xC	4	XY1	Loaded into VXY1 data register of GTE.
0x10	4	Z1	Loaded into VZ1 data register of GTE.
0x14	4	XY2	Loaded into VXY2 data register of GTE.
0x18	4	Z2	Loaded into VZ2 data register of GTE.
0x1C	4	XY3	Loaded into VXY0 data register of GTE.
0x20	4	Z3	Loaded into VZ0 data register of GTE.
0x24	-	-	Unknown.
0x34	4	unknown1	Possibly indicates that there is a next block.