Exec
Hardware     Software
Priority     Priority     Description                  Name
--------     --------     -----------                  ----
           ____
          |     1         transmitter buffer empty     tbe 
          |
   1 -----|     2         disk block complete          dskblk 
          |
          |     3         software interrupt           SOFTINT
          |----
   2 -----|     4         external INT2 & CIAA         ports 
          |----
          |     5         graphics coprocessor         coper 
          |
   3 -----|     6         vertical blank interval      vertb 
          |
          |     7         blitter finished             blit 
          |----
          |     8         audio channel 2              aud2 
          |
          |     9         audio channel 0              aud0 
   4 -----|
          |     10        audio channel 3              aud3 
          |
          |     11        audio channel 1              aud1 
          |----
          |     12        receiver buffer full         rbf 
   5 -----|
          |     13        disk sync pattern found      dsksync 
          |----
          |     14        external INT6 & CIAB         exter 
   6 -----|
          |     15        special (master enable)      inten 
          |----
   7 -----|____ --        non-maskable interrupt       nmi