ALU For blending Operations
Four BLEND units, one each for R, G, B, A
Implements:
- New Term + (old data x old fraction)
A complete blend takes two clock cycles:
- new term = src_color * sfactor (1st clock)
- new term + dst_color * dfactor (2nd clock)
One of the multiplicands is 9 bits wide in order to represent the value 1.0 (100000000).