Research Article
Exploring Online Synthesis for CGRAs with Specialized Operator Sets
Table 5
Largest number of equal operation types executed within a single state on an array with 16 operators.
| | (a) Round key generation | | | | |
| | Operation Type | Rijndael | Twofish |
RC6 |
Serpent |
| | Combinational | 7 | 13 |
7 |
16 | | Multiplication | 1 | 15 |
0 |
0 | | Type conversion | 0 | 1 |
2 |
0 | | Division | 0 | 0 |
0 |
0 |
| | | | | | | (b) Single block encryption | | | | |
| | Operation Type | Rijndael | Twofish |
RC6 |
Serpent |
| | Combinational | 16 | 14 |
9 |
15 | | Multiplication | 0 | 8 |
4 |
0 | | Type conversion | 0 | 0 |
0 |
0 | | Division | 0 | 0 |
0 |
0 |
| | | | | | | (c) Hash/digest algorithms | | | | |
| | Operation Type | SHA-1 |
SHA-256 | |
MD5 |
| | Combinational | 12 |
16 | |
4 | | Multiplication | 0 |
0 | |
0 | | Type Conversion | 0 |
0 | |
0 | | Division | 0 |
0 | |
0 |
| | | | | | | (d) Image processing | | | | |
| | Operation Type | Sobel filter |
Grayscale filter | |
Contrast filter |
| | Combinational | 3 |
5 | |
5 | | Multiplication | 1 |
3 | |
3 | | Type Conversion | 1 |
0 | |
3 | | Division | 1 |
0 | |
3 |
| | | | | | | (e) JPEG encoding | | | | |
| | Operation type | JPEG-encoder |
Color space transformation |
2-D Forward DCT | Quantization |
| | Combinational | 7 |
13 |
7 | 16 | | Multiplication | 1 |
15 |
0 | 0 | | Type conversion | 0 |
1 |
2 | 0 | | Division | 0 |
0 |
0 | 0 |
|
|
