Altera Stratix - Page 341

Altera Corporation 7–55
September 2004 Stratix Device Handbook, Volume 2
Implementing High Performance DSP Functions in Stratix & Stratix GX Devices
The following defines in matrix format, the 8-point 1-D DCT of
Figure 7–33:
where:
[x] is the 1
× 8 input matrix
Y
1D
x
Add
1
×
Add
2
×
Add
3
C
××=
Add
1
10000001
01000010
00100100
00011000
0001 1– 000
00100 1– 00
010000 1– 0
1000000 1–
=
Add
2
10010000
01100000
01 1– 00000
100 1– 0000
00001000
00000100
00000010
00000001
=
Add
3
11000000
11– 000000
00100000
00010000
00001000
00000100
00000010
00000001
=