Function o1vm::interpreters::riscv32im::interpreter::interpret_ujtype

pub fn interpret_ujtype<Env: InterpreterEnv>(
    env: &mut Env,
    instr: UJInstruction
)

Interpret an UJ-type instruction. The encoding of an UJ-type instruction is as follows:

| 31                12  | 11    7 | 6      0 |
| imm[20|10:1|11|19:12] |    rd   |  opcode  |

Following the documentation found here

The interpretation of the immediate is as follow:

imm_20    = instruction[31]
imm_10_1  = instruction[30..21]
imm_11    = instruction[20]
imm_19_12 = instruction[19..12]

imm = imm_20    << 19   +
      imm_19_12 << 11   +
      imm_11    << 10   +
      imm_10_1

# The immediate is then sign-extended. The sign-extension is in the bit imm20
imm = imm << 1