Routines
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2684: THE 'SCANNING ALPHANUMERIC' ROUTINE
Used by the routine at SCANNING.
Input
A Code of the current character
Output
S_ALPHNUM 2684 CALL ALPHANUM Is the character alphanumeric?
2687 JR NC,S_NEGATE Jump if not a letter or a digit.
2689 CP "A" Now jump if it is a letter; otherwise continue on into S_DECIMAL.
268B JR NC,S_LETTER
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