TotalView uses the $void data type for data of an unknown type, such as the data contained in registers or in an arbitrary block of memory. The $void type is similar to the int type in the C Language.

If you dive on registers or display an area of memory, TotalView lists the contents as a $void data type. If you display an array of $void variables, the index for each object in the array is the address, not an integer. This address can be useful when you want to display large areas of memory.

If you want, you can change a $void to another type. Similarly, you can change any type to a $void to see the variable in decimal and hexadecimal formats.