| 0b0001 | FFT Butterfly |
| 0b0010 | DCT Inner butterfly, pre-calculated coefficients |
| 0b0110 | iDCT Inner butterfly, pre-calculated coefficients |
+| 0b0110 | DCT half-swap |
| 0b0100 | DCT Inner butterfly, on-the-fly (Vertical-First Mode) |
| 0b1100 | iDCT Inner butterfly, on-the-fly (Vertical-First Mode) |
| 0b0011 | DCT Outer butterfly |
| 0b1011 | (i)DCT Outer butterfly |
| 0b0101 | iDCT COS table generation |
| 0b1101 | DCT COS table generation |
+| 0b1110 | iDCT half-swap |
+| 0b1111 | FFT half-swap |
# 4x4 Matrix to vec4 Multiply Example