Method encode

src/codec.cpp:578–592

IMM: dst_slot = imm

    // IMM: dst_slot = imm
    void ImmCodec::encode(BytecodeBuilder& out, const IRInsn& i, const VMConfig& vm) const {
        out.u8(vm.opcode_for(family()));
        const auto& v = get_op<VirReg>(i, 0);
        enc_slot(out, vm, v);
        const auto& im = get_op<Imm>(i, 1);

        // 4-component obfuscated encoding so the original imm value never sits
        // as contiguous bytes in the bytecode encrypted or decrypted 
        enc_imm_n_obfuscated(
            out,
            im.value,
            8,
            vm
        );
    }

    void ImmCodec::emit_handler(X64Emitter& e, const VMConfig& vm) const {
        const auto& r = vm.dispatcher_regs();