Cells that have zero counts are marked with ".". Cells that have a non-zero count, but were rounded to zero, are marked with "o".
If one of cell-bits, row-bits or table-bits is specified, then each cell, or each table row, or the entire table is limited to that many bits of address space. By default the display starts at address 0, but if an address is specified with the address argument, the displayed interval is shifted to make that address is visible.
If start and stop are specified, the display is limited to the smallest interval containing both addresses.
The maximum number of lines and columns in the table are limited by the lines and columns arguments (the default is 20 lines, 8 columns). The scale of the map is adjusted to fit this limit.
Normally, the display chooses an appropriate prefix for the count of each cell; with the -same-prefix flag, all counts will be forced to have the same prefix. This is useful if a lot of small but non-zero values makes it hard to spot the really big values.