simple_v_extension/reg_table_format.mdwn

   1 16 bit format:
   2
   3 | RegCAM | 15       | (14..8)  | 7   | (6..5) | (4..0)  |
   4 | ------ | -        | -        | -   | ------ | ------- |
   5 | 0      | isvec0   | regidx0  | i/f | vew0   | regkey0 |
   6 | 1      | isvec1   | regidx1  | i/f | vew1   | regkey1 |
   7 | 2      | isvec2   | regidx2  | i/f | vew2   | regkey2 |
   8 | 3      | isvec3   | regidx3  | i/f | vew3   | regkey3 |
   9
  10 8 bit format:
  11
  12 | RegCAM | 7   | (6..5) | (4..0)  |
  13 | ------ | -   | ------ | ------- |
  14 | 0      | i/f | vew0   | regnum  |
  15
  16 Showing the mapping (relationship) between 8-bit and 16-bit format:
  17
  18 | RegCAM | 15      | (14..8)    | 7   | (6..5) | (4..0)  |
  19 | ------ | -       | -          | -   | ------ | ------- |
  20 | 0      | isvec=1 | regnum0<<2 | i/f | vew0   | regnum0 |
  21 | 1      | isvec=1 | regnum1<<2 | i/f | vew1   | regnum1 |
  22 | 2      | isvec=1 | regnum2<<2 | i/f | vew2   | regnum2 |
  23 | 3      | isvec=1 | regnum3<<2 | i/f | vew3   | regnum3 |
  24