XPL0 Language

The XPL0 Programming Language

Top Previous Next

0: INTRODUCTION

•	Example Program: GUESS

•	Compiling and Running

•

•	Integer Constants

•	Hex Constants

•	ASCII Constants

•	Real Constants

•

•	Declarations

•	Declared Constants *

•	Example Program

•	Free Format

•	Arithmetic Expressions

•	Mixed Mode

•	Unary Operators

•	Comparisons

•	True and False *

•	Boolean Expressions *

•	Example Program: SETS *

•	Shift Operators *

•	If Expression *

•	Constant Expressions *

•	Conditional Compile *

•	Hazards of Real Numbers *

•	Assignments

•	Begin - end

•	If - then - else

•	Case - of - other *

•	While - do

•	Repeat - until

•	Loop - quit

•

•

•	Subroutine Calls

•

•	Null Statements

•	Example Program: THERMO

•	Procedures

•	Local and Global

•

•

•

•

•	Intrinsics

•

•	Recursion *

•	Forward Procedures *

•	Forward Functions *

•

•	External Procedures *

•	Assembly-Language Externals *

•	External .I2L Procedures *

•	Structs or Records.

•	Example Program: DICE

•	How arrays work *

•

•	Multidimensional Arrays *

•	Complex Data Structures *

•	Constant Arrays *

•	Example Program: RECORDS *

•	Address Operator *

•	Returning Multiple Values *

•	Segment Arrays *

6: INPUT AND OUTPUT

•	Intrinsics

•	Compile Errors .

•	Run-time Errors

•	Common Errors

•	Keyboard Scan Codes

•	Syntax Summary

* Advanced section