% tcl::unsupported::disassemble script [makeFacExpr 10]
ByteCode 0x0x4de10, refCt 1, epoch 3, interp 0x0x31c10 (epoch 3)
  Source "expr {1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10}"
  Cmds 1, src 45, inst 3, litObjs 1, aux 0, stkDepth 1, code/src 0.00
  Commands 1:
      1: pc 0-1, src 0-44
  Command 1: "expr {1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10}"
    (0) push1 0 	# "3628800"
    (2) done