Star Fox/Graphics Data

This is a sub-page of Star Fox.

Graphics Data
Game	Star Fox
Start Address	0x0B0000
End Address	0x0BFFFF
# of Entries	unknown
Entry Length	unknown
Total Length	65,535 bytes
Back to the ROM map

Graphics Data

Unlike the texture data that is used for rendering images on 3D models, the 2D graphics images are stored in standard 4-bit per pixel planar format in 8x8 pixel "tiles". Each tile takes up 32-bytes of memory. Each byte holds 1 bit for 8 pixels (one row of an 8x8 tile.) Since the images are 4-bits per pixel, the first two bits are written first for the first two rows, then the next two bits are written for those same rows.

Offset  Size    Description
------- ----    -----------
 0x00   1       Bit 0 Row 0
 0x01   1       Bit 1 Row 0
 0x02   1       Bit 0 Row 1
 0x03   1       Bit 1 Row 1
 0x04   1       Bit 2 Row 0
 0x05   1       Bit 3 Row 0
 0x06   1       Bit 2 Row 1
 0x07   1       Bit 3 Row 1
 0x08   1       Bit 0 Row 2
 0x09   1       Bit 1 Row 2
 0x0A   1       Bit 0 Row 3
 0x0B   1       Bit 1 Row 3
 0x0C   1       Bit 2 Row 2
 0x0D   1       Bit 3 Row 2
 0x0E   1       Bit 2 Row 3
 0x0F   1       Bit 3 Row 3
 0x10   1       Bit 0 Row 4
 0x11   1       Bit 1 Row 4
 0x12   1       Bit 0 Row 5
 0x13   1       Bit 1 Row 5
 0x14   1       Bit 2 Row 4
 0x15   1       Bit 3 Row 4
 0x16   1       Bit 2 Row 5
 0x17   1       Bit 3 Row 5
 0x18   1       Bit 0 Row 6
 0x19   1       Bit 1 Row 6
 0x1A   1       Bit 0 Row 7
 0x1B   1       Bit 1 Row 7
 0x1C   1       Bit 2 Row 6
 0x1D   1       Bit 3 Row 6
 0x1E   1       Bit 2 Row 7
 0x1F   1       Bit 3 Row 7

The final 4-bit pixel value points to a color in the palette located at 0x18B0A. The color palette may be changed by the game to an alternate palette based on the current level.

These 8x8 tiles can be arranged on the screen to make larger images, like the 32x40 pixel images used for the character communication images.

Character Images

Character image tiles are stored in memory, vertically, as 20 tiles (5 columns by 4 rows). The top left tile is stored first, then the 4 tiles directly beneath that tile, then the first tile of the next column, and so on.

Start	Tiles	Size	Description
0BB9C0	20 (4x5)	32x40	Communication
0BBC40	20 (4x5)	32x40	Communication 2
0BBEC0	20 (4x5)	32x40	Communication 3
0BC140	20 (4x5)	32x40	Communication 4
0BC3C0	20 (4x5)	32x40	Communication 5
0BC640	20 (4x5)	32x40	Fox
0BC8C0	20 (4x5)	32x40	Fox 2
0BCB40	20 (4x5)	32x40	Peppy
0BCDC0	20 (4x5)	32x40	Peppy 2
0BD040	20 (4x5)	32x40	Falco
0BD2C0	20 (4x5)	32x40	Falco 2
0BD540	20 (4x5)	32x40	Slippy
0BD7C0	20 (4x5)	32x40	Slippy 2
0BDA40	20 (4x5)	32x40	Pepper
0BDCC0	20 (4x5)	32x40	Pepper 2
0BDF40	20 (4x5)	32x40	Andross
0BE1C0	20 (4x5)	32x40	Andross 2
0BE440	20 (4x5)	32x40	Communication 6