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how to work with byte as bit array?

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40inD

Joined: 30 Jul 2007
Posts: 112
Location: Moscow, Russia

how to work with byte as bit array?

Posted: Mon Oct 06, 2014 8:06 am

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I need to sent to function a byte as argument, but inside the function i need to work with this byte like this:
byte.bit or byte[bit]
is it possible?
i.e.

Code:

output_bit(PIN_A2, byte[2]); // 3th bit of byte

Ttelmah

Joined: 11 Mar 2010
Posts: 19552


Posted: Mon Oct 06, 2014 9:09 am

union

40inD

Joined: 30 Jul 2007
Posts: 112
Location: Moscow, Russia

Posted: Tue Oct 07, 2014 1:37 am

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solved thru bit_test

Code:

void setcode (byte cod)
{
output_bit(PIN_A2, bit_test(cod,2));
output_bit(PIN_A4, bit_test(cod,4));
output_bit(PIN_A5, bit_test(cod,5));

}

asmboy

Joined: 20 Nov 2007
Posts: 2128
Location: albany ny


Posted: Tue Oct 07, 2014 8:51 am

you might reconsider the very good advice from MR. "T" in the previous post, especially after you look in the .LST file to see what your code generates..

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