HDMA Helpers Demo

Demonstrates the four HDMA library helper effects available in the OpenSNES SDK.

Screenshot

Effects

Button	Effect	Description
A	Brightness gradient	Fade to black at screen bottom
B	Color gradient	Sky-like color shift on background color 0
X	Iris wipe	Circular window reveal/conceal
Y	Water ripple	Wave distortion increasing top-to-bottom
D-pad	Adjust	Change parameters per active effect
START	Stop	Disable current effect

Architecture

• BG1: Static background image (OpenSNES logo)
• HDMA: One channel driven by library helper functions
• Each effect builds a per-scanline HDMA table in RAM

Modules

console sprite dma input background hdma