inst[4:2] | 000 | 001 | 010 | 011 | 100 | 101 | 110 | 111 |
inst[6:5] | ( > 32b) | |||||||
00 | LOAD | LOAD-FP | custom-0 | MISC-MEM | OP-IMM | AUIPC | OP-IMM-32 | 48b |
01 | STORE | STORE-FP | custom-1 | AMO | OP | LUI | OP-32 | 64b |
10 | MADD | MSUB | NMSUB | NMADD | OP-FP | OP-V | custom-2/rv128 | 48b |
11 | BRANCH | JALR | reserved | JAL | SYSTEM | reserved | custom-3/rv128 | ≥ 80b |