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POKE TYPE: Statement Action: The POKE statement is used to write a one-byte (8-bits) binary value into a given memory location or input/output register. The <location> is an arithmetic expression which must equal a value in the range of 0 to 65535. The <value> is an expression which can be reduced to an integer value of 0 to 255. If either value is out of its respective range, the BASIC error message ?ILLEGAL QUANTITY occurs. The POKE statement and PEEK statement (which is a built-in function that looks at a memory location) are useful for data storage, controlling graphics displays or sound generation, loading assembly language sub-routines, and passing arguments and results to and from assembly language subroutines. In addition, Operating System parameters can be examined using PEEK statements or changed and manipulated using POKE statements. A complete memory map of useful locations is given in Appendix G. EXAMPLES of POKE Statement:
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