Port Manipulation question

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hey, i'm trying replace of digitalwrites in code port manipulation speed reasons.

however, i'm wondering, how change state of 1 pin without effecting others? example, if set 1 pin high, few seconds later, want set pin next high also, how can leave other pin high without having set high again?

regards,
dan

use bitwise or set bits 1 , bitwise , set bits 0.

code: [select]

portb |= 0b00000110;  // set bits 1 , 2 high
portb &= ~0b00001010;  // set bits 1 , 3 low (the '~' bitwise inversion changing 0b00001010 0b11110101)


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