| Source code: | bytetable.cpp |
bytetable prints out the decimal-hexadecimal-binary equivalences for each possible bit combination in a byte. It is useful for explaining the MIDI protocol and standard MIDI files.
Here is the command synopsis:
Print a number-conversion table for one byte Usage: bytetable [-a][-c][-n][-z] number(s) Options: -a = add a column of printable ASCII character equivalents -c = add a comma in the middle of binary numbers -n = print a table which includes the negative numbers -z = fill in empty digits for binary and hex numbers --options = list all options, default values, and aliases
Example usage of the bytetable program (click on the command to see the output):
> # display a table of dec/hex/binary values for one byte > bytetable > # display a table of dec/hex/binary using the signed range > bytetable -n > # display a table of dec/hex/binary filling in empty digits > bytetable -z > # display a table of dec/hex/binary adding a comma in the binaries > bytetable -c > # display a table of dec/hex/binary adding printable ASCII codes > bytetable -a
Suppose that you want to find the equivalences for the hex number fd, then you could run this command:
> bytetable | grep fd 253 fd 11111101
Or, if you want to know the ASCII code for the letter 'M':
> bytetable -a | grep M 77 4d 1001101 'M'
Or, if you want to know the equivalences for hex value for 0x44:
> bytetable -a | grep ...44 68 44 1000100 'D'
Here are the outputs from all possible command-line option combinations: