Put on stack. Put on stack. Print the following characters to the screen. Put the value of the specified function onto the stack. Make a call to the system using register setup.
Top value indicates string to use, second top indicates length to print.
Test for the top value of the stack being less than the second top value. Test for the top value of the stack being greater than the second top value. Many elses can be used from the same test, with any number of intervening words. Note that a whitespace between the leading ' and the read commands is required. Terminated by ' .