Remote-processing CAMBASIC Instrukcja Użytkownika Pobierz pdf (Strona 43)

Commands - 10

BIN$

String Function

SYNTAX: n$ = BIN$(m)

PURPOSE: Returns an 8– bit binary representation of a number.

REMARK S: The most significant bit (bit 7) is on the left and the least significant is on the right. If a string

argument is inadvertently used, the result will be zero.

This function is primarily used with the INP function to display the status of each input line.

RELATED: The HEX$ function and the “@” binary prefix.

EXAMPLE: PRINT BIN$(199)

11000111

This example illustrates the usefulness of BIN$ to determine the status of an I/O port. Suppose that

the port is connected to switches. Reading the value with the INP function yields 199. Without

doing calculations, it is difficult to tell which sw itches are on. Using BIN $ you can see immediately

that switches 0, 1, 2, 6 and 7 are on.

ERROR: < Type mismatch> – if m is a string or n is not a string.

< Data > 255> – for m.

< Data negative > – for m.

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 207 208

Brak uwag

Remote-processing CAMBASIC Instrukcja Użytkownika Strona 43