12C509 GPIO

Hi all,

I'm feeling a little stupid here but could someone tell me how to switch GP0,1,2,4,5 & 6 simultaneously?

I'm familiar with

bsf GPIO,4 ;set output GP4 high call delay ;call the delay subroutine bcf GPIO,4 ;set output GP4 low

But a list of bsf GPIO,1 bsf GPIO,2 etc. can't be correct surely

Could someone please enlighten me as to the correct way?



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movlw b'xxxxxxxx' movwf GPIO

Ben Jackson

Reply to
Ben Jackson

You need to read up on boolean operators OR, AND, and XOR.

Reply to
Gary Kato

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