B-instructions
| Type | instructions | Category |
| B1 | IP-relative branch | branch |
| B2 | IP-rel.counted branch | branch |
| B3 | IP-rel.call | branch |
| B4 | indirect branch(b-register) | branch |
| B5 | indirect call(b-register) | branch |
| B6 | ||
| B7 | ||
| B8 | clrrrb | branch misc. |
| B9 | breadk.b/nop.b | branch nop |