Mode 6: Difference between revisions

Latest revision as of 15:25, 18 August 2024


BG Layers Available
Layer 1
4bpp

Mode 6 is the least frequently used Background Mode. No games use it.^[1][4] It is one of the hi-res modes, meaning the horizontal resolution is 512 dots. When interlacing is enabled, the vertical resolution is also doubled.^[1] It supports offset change mode. PVSnesLib currently does not support Mode 6. ^[2] Color Math should not be used in Mode 6.^[3][7] Tiles are 16 pixels wide and 8 pixels tall in Mode 6.^[5]

The eight palettes for BG1 are located at CGRAM addresses 0h to 7Fh.^[6] Each palette contains 16 colors.

Direct Color is unsupported.^[5]

Mosaic and windowing are supported.

References

https://nesdoug.com/2022/05/30/other-modes
https://github.com/alekmaul/pvsneslib/issues/14#issuecomment-698703247
7.1 on page 2-7-2 of Book I of the official Super Nintendo development manual
https://forums.nesdev.org/viewtopic.php?t=15087
Appendix A-5
bottom left memory map in Appendix A-17, lbid
subparagraph 19.1 on page 2-19-1 of Book I

External Links

demo including Mode 6: https://forums.nesdev.org/viewtopic.php?p=174494

@@ Line 1: / Line 1: @@
-'''Mode 6''' is the least frequently used [[Background Mode]].  No games use it.  <sup>[1]</sup>  [[PVSnesLib]] currently does not support Mode 6. <sup>[2]</sup>
+{| class="wikitable" style="float:right;clear:right;width:15%"
+!colspan="4"|BG Layers Available
+|+
+| [[Layer 1]]
+|+
+| 4bpp
+|}
+'''Mode 6''' is the least frequently used [[Background Mode]].  No games use it.<sup>[1][4]</sup>  It is one of the hi-res modes, meaning the horizontal resolution is 512 dots.  When [[interlacing]] is enabled, the vertical resolution is also doubled.<sup>[1]</sup>  It supports [[offset change mode]].  [[PVSnesLib]] currently does not support Mode 6. <sup>[2]</sup>  [[Color Math]] should not be used in Mode 6.<sup>[3][7]</sup>  Tiles are 16 pixels wide and 8 pixels tall in Mode 6.<sup>[5]</sup>
+The eight palettes for BG1 are located at [[CGRAM]] addresses 0h to 7Fh.<sup>[6]</sup>  Each palette contains 16 colors.
+[[Direct Color]] is unsupported.<sup>[5]</sup>
+[[Mosaic]] and [[windowing]] are supported.
 === See Also ===
@@ Line 7: / Line 21: @@
 | [[Mode 0]] || [[Mode 1]] || [[Mode 2]] || [[Mode 3]]
 |+
-| [[Mode 4]] || [[Mode 5]] ||            || [[Mode 7]]
+| [[Mode 4]] || [[Mode 5]] || [[Mode 6]] || [[Mode 7]]
 |}
-=== Reference ===
+=== References ===
 # https://nesdoug.com/2022/05/30/other-modes
 # https://github.com/alekmaul/pvsneslib/issues/14#issuecomment-698703247
+# 7.1 on [https://archive.org/details/SNESDevManual/book1/page/n69 page 2-7-2 of Book I] of the official Super Nintendo development manual
+# https://forums.nesdev.org/viewtopic.php?t=15087
+# [https://archive.org/details/SNESDevManual/book1/page/n199 Appendix A-5]
+# bottom left memory map in [https://archive.org/details/SNESDevManual/book1/page/n211 Appendix A-17], lbid
+# subparagraph 19.1 on [https://archive.org/details/SNESDevManual/book1/page/n89 page 2-19-1 of Book I]
+=== External Links ===
+# demo including Mode 6: https://forums.nesdev.org/viewtopic.php?p=174494
 [[Category:Video]]
+[[Category:Tiled Background Modes]]
+[[Category:Offset Change Modes]]
+[[Category:Horizontal 512 Modes]]
+[[Category:Indirect Color Modes]]
+[[Category:Single-background Modes]]

Other Background Modes
Mode 0	Mode 1	Mode 2	Mode 3
Mode 4	Mode 5	Mode 6	Mode 7