Mode 2: Difference between revisions

Latest revision as of 15:22, 18 August 2024


BG Layers Available
Layer 2	Layer 1
4bpp	4bpp

Mode 2 is very similar to Mode 1, except that Layer 3 is sacrificed to support Offset Change Mode instead of being a background. The horizontal resolution is 256 dots.

The eight palettes for BG1 and BG2 are located at CGRAM addresses 0h to 7Fh in Mode 2.^[3] Each of those palettes contains 16 colors.

Background tiles may be 8 by 8 pixels or 16 by 16 pixels in Mode 2.^[2]

Direct Color is unsupported.

Mosaic, interlacing, and windowing are supported.

References

https://nesdoug.com/2022/05/30/other-modes
Appendix A-5 of the official Super Nintendo development manual
upper right memory map in Appendix A-17, lbid

@@ Line 7: / Line 7: @@
 |}
-'''Mode 2''' is very similar to [[Mode 1]], except that Layer 3 is sacrificed to support [[Offset Change Mode]] instead of being a background.
+'''Mode 2''' is very similar to [[Mode 1]], except that Layer 3 is sacrificed to support [[Offset Change Mode]] instead of being a background.  The horizontal resolution is 256 dots.
+The eight palettes for BG1 and BG2 are located at [[CGRAM]] addresses 0h to 7Fh in Mode 2.<sup>[3]</sup>  Each of those palettes contains 16 colors.
+Background tiles may be 8 by 8 pixels or 16 by 16 pixels in Mode 2.<sup>[2]</sup>
+[[Direct Color]] is unsupported.
+[[Mosaic]], [[interlacing]], and [[windowing]] are supported.
 === See Also ===
@@ Line 18: / Line 26: @@
 |}
-=== Reference ===
+=== References ===
-* https://nesdoug.com/2022/05/30/other-modes
+# https://nesdoug.com/2022/05/30/other-modes
+# [https://archive.org/details/SNESDevManual/book1/page/n199 Appendix A-5] of the official Super Nintendo development manual
+# upper right memory map in [https://archive.org/details/SNESDevManual/book1/page/n211 Appendix A-17], lbid
 [[Category:Video]]

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