lowlines

Nitro Screen Resource (NSCR)

Category: Nintendo DS

Description: Common screen format used in Nintendo DS games.

Author: lowlines & Garyong/Barubary/Aygox

Filename: nscr.xml

Size: 2.71 KB

Date Modified: 22 October 2024

• Nitro Header

  • Type		Offset	Size	Value	Description
    Magic Stamp		0x0000	4	0x5243534E	Stamp (RCSN) "Nitro SCreen Resource".
    Constant		0x0004	4	0x0100FEFF
    File Size		0x0008	4
    Header Size		0x000C	2	16
    # Sections		0x000E	2	1

• SCReeN Section (SCRN)

  • Type		Offset	Size	Value	Description
    Magic Stamp		0x0000	4	0x4E524353	Stamp (NRCS) "SCReeN".
    Section Size		0x0004	4
    Width		0x0008	2
    Height		0x000A	2
    Internal Screen Size		0x000C	2
    BG Type		0x000E	2
    Data Size		0x0010	4

  • Internal Screen Size
    • see GBATek http://nocash.emubase.de/gbatek.htm#lcdiobgcontrol
    • Details

      	Text Mode	Rotation/Scaling Mode
      0	256x256	128x128
      1	512x256	256x256
      2	256x512	512x512
      3	512x512	1024x1024

  • Screen Data (NTFS format)
    • see GBATek http://nocash.emubase.de/gbatek.htm#lcdvrambgscreendataformatbgmap
    • Details - Text Mode

      Bit 0-9: Tile Index

      Range (0-1023)

      Bit 10: Horizontal Flip

      0 = Normal

      1 = Mirrored

      Bit 11: Vertical Flip

      0 = Normal

      1 = Mirrored

      Bit 12-15: Palette Index

      Range (0-15)

      Not used in 8-bit mode

    • Details - Rotation/Scaling Mode

      Bit 0-7: Tile Index

      Range (0-255)