# for LD/ST-indexed (RA+RB):
"""
- | 0-1 | 2 | 3 4 | description |
- | --- | --- |---------|-------------------------- |
- | 00 | SEA | dz sz | normal mode |
- | 01 | SEA | dz sz | Strided (scalar only source) |
- | 10 | N | dz sz | sat mode: N=0/1 u/s |
- | 11 | inv | CR-bit | Rc=1: pred-result CR sel |
- | 11 | inv | dz RC1 | Rc=0: pred-result z/nonz |
+ | 0-1 | 2 | 3 4 | description |
+ | --- | --- |---------|----------------------------- |
+ | 00 | SEA | dz sz | normal mode |
+ | 01 | SEA | dz sz | strided (scalar only source) |
+ | 10 | N | dz sz | sat mode: N=0/1 u/s |
+ | 11 | inv | CR-bit | Rc=1: pred-result CR sel |
+ | 11 | inv | dz RC1 | Rc=0: pred-result z/nonz |
"""
# and leaving out branches and cr_ops for now because they're