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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

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how to work with byte as bit array?
PostPosted: Mon Oct 06, 2014 8:06 am     Reply with quote
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: 19378

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PostPosted: Mon Oct 06, 2014 9:09 am     Reply with quote
union
40inD



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

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PostPosted: Tue Oct 07, 2014 1:37 am     Reply with quote
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

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PostPosted: Tue Oct 07, 2014 8:51 am     Reply with quote
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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