In XCSB binary constants begin with the prefix 0b. Because binary numbers can be long and difficult to read and transcribe, XCSB allows the use of the underscore "_" character to apear in binary constants. This feature allows the programmer to visually group binary digits within a constant.e.g.
binary
constanthex
constantdecimal
constant0b_0011_0001 0x31 49 0b_0010_1111 0x2F 47 0b_0100_0001 0x41 65