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BCDADD.BAS
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BASIC Source File
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1992-08-29
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1KB
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29 lines
' +----------------------------------------------------------------------+
' | |
' | BASWIZ Copyright (c) 1990-1992 Thomas G. Hanlin III |
' | |
' | The BASIC Wizard's Library |
' | |
' +----------------------------------------------------------------------+
DECLARE FUNCTION BCDSub$ (Nr1 AS STRING, Nr2 AS STRING)
DECLARE SUB BCDAdd1 (N1 AS STRING, N2 AS STRING)
DEFINT A-Z
FUNCTION BCDAdd$ (Nr1 AS STRING, Nr2 AS STRING)
Sign1$ = LEFT$(Nr1, 1)
Sign2$ = LEFT$(Nr2, 1)
N1$ = MID$(Nr1, 2)
N2$ = MID$(Nr2, 2)
IF Sign1$ = Sign2$ THEN
BCDAdd1 N1$, N2$
BCDAdd$ = Sign1$ + N1$
ELSEIF Sign1$ = "-" THEN
BCDAdd$ = BCDSub$(Nr2, " " + N1$)
ELSE
BCDAdd$ = BCDSub$(Nr1, " " + N2$)
END IF
END FUNCTION