Method add

src/server/web/public/terminal.js:4819–4821

(e3, t3, i3, s3)

            this.table = new Uint8Array(e3);
          }
          setDefault(e3, t3) {
            this.table.fill(e3 << 4 | t3);
          }
          add(e3, t3, i3, s3) {
            this.table[t3 << 8 | e3] = i3 << 4 | s3;
          }