Horizontal Pseudo 512 Mode

Pseudo HiRes Mode is a transparency technique that displays the Main Screen and Sub Screen at the same time without the use of color math. It is enabled by setting bit 3 of SETINI (2133h). Columns of dots with an odd horizontal position are drawn by sampling a subscreen pixel, and columns of dots with an even horizontal position are drawn by sampling a main screen pixel. A CRT televsion blends the adjacent dots together, creating the transparency effect.

Examples

• the HUD in Jurassic Park
• the trees in Kirby's Dreamland 3

See Also

• H-512 Mode

References

• https://nesdoug.com/2022/05/30/other-modes/