BcdToDec_GCB

Syntax:

    BcdToDec_GCB ( ByteVariable )

Command Availability:

Available on all microcontrollers.

Supports bytes only.

Explanation:

Converts numbers from Binary Coded Decimal (BCD) format to decimal. In BCD, each nibble (4 bits) of a byte represents one decimal digit — for example, the BCD byte 0x23 represents the decimal number 23, not 35.

This is not a built-in GCBASIC command; it is a user-defined function you add to your own program and call when needed.

Example:

    Function BcdToDec(va) as byte
        BcdToDec=(va/16)*10+va%16          ' <<< the BcdToDec instruction
    End Function

Key line: BcdToDec=(va/16)*10+va%16 — treats the high nibble of va (va/16) as the tens digit and the low nibble (va%16) as the units digit, combining them into an ordinary decimal value.

See Also:

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