ckb-debugger support decode instruction

[joii2020]

No description provided.

[XuJiandong]

These match arms can be merged.

[XuJiandong]

RISC-V doesn't have MOP extension.

[mohanson]

You can use TaggedInstruction to get this job done

if let Some(i) = instructions::i::factory::<u64>(instruction, VERSION2) {
          let tagged_instruction_option = instructions::tagged::TaggedInstruction::try_from(i);
          if let Ok(tagged_instruction) = tagged_instruction_option {
              println!("{}", tagged_instruction)
          } else {
              println!("unknown instruction");
          }
}

result:

addi a7,93(zero) # if instruction is 0x05d00893

[mohanson]

data.start_with("0x")

[mohanson]

ckb-vm does not guarantee that the instructions in an instruction set are ordered together. For example branch instructions in IMC are not grouped with other IMC instructions, See: https://github.com/nervosnetwork/ckb-vm/blob/develop/definitions/src/instructions.rs#L270-L287

[mohanson]

I think there is an easier way to do it, just do things like below

if let Some(i) = instructions::i::factory::<u64>(instruction, VERSION2) {
    let tagged_instruction = instructions::tagged::TaggedInstruction::try_from(i).unwrap();
    println!("{} (ISA_I)", tagged_instruction)
}

if let Some(i) = instructions::m::factory::<u64>(instruction, VERSION2) {
    let tagged_instruction = instructions::tagged::TaggedInstruction::try_from(i).unwrap();
    println!("{} (ISA_M)", tagged_instruction)
}

if let Some(i) = instructions::a::factory::<u64>(instruction, VERSION2) {
    let tagged_instruction = instructions::tagged::TaggedInstruction::try_from(i).unwrap();
    println!("{} (ISA_A)", tagged_instruction)
}

if let Some(i) = instructions::b::factory::<u64>(instruction, VERSION2) {
    let tagged_instruction = instructions::tagged::TaggedInstruction::try_from(i).unwrap();
    println!("{} (ISA_B)", tagged_instruction)
}

if let Some(i) = instructions::rvc::factory::<u64>(instruction, VERSION2) {
    let tagged_instruction = instructions::tagged::TaggedInstruction::try_from(i).unwrap();
    println!("{} (ISA_RVC)", tagged_instruction)
}