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Languguage OS II Version 10-94 (Knowledge Media)(1994).ISO
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332-101.arc
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1989-11-23
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794b
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22 lines
SUBROUTINE Call Command
The SUBROUTINE Call command is used to execute a subroutine
and return to a specified address.
Upon invocation, the SUBROUTINE Call command ask you for the
address of a subroutine to execute. You must reply with a valid
hex-decimal number. It then asks for a return address. This is the
address to which the subroutine returns. You may specify a valid
hex-decimal address or default the question. If you default the
question, the subroutine returns to the address contained in the
Program Counter Register.
This command allows you to "patch" code by causing execution
of a subroutine which would not normally be executed. You may also
use this command to test subroutines before the calling program is
completed.
%END