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07199: THE 'COMMAND CLASS 01' ROUTINE
Used by the routines at READ_3 and INPUT.
The address of this routine is derived from an offset found in the command class table.
Command class 01 is concerned with the identification of the variable in a LET, READ or INPUT statement.
Input
Output
CLASS_01 07199 CALL LOOK_VARS Look in the variables area to determine whether or not the variable has been used already.
This routine continues into VAR_A_1.
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