Single Bit Access

crgwbr

Is there any way to set a specific bit of a variable to a 1 or 0? For example, if byte x == %00000000, I want to be able to set each individual bit separately from the others. Can I do this in SPIN? I haven't seen anything in the manual about it.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
"... one of the main causes of the fall of the Roman Empire was that, lacking zero, they had no way to indicate successful termination of their C programs." -

"If Python is executable pseudocode, then perl is executable line noise."

"The best accelerator available for a Mac is one that causes it to go at 9.81 m/s2."

"My software never has bugs. It just develops random features."

"Windows isn't a virus, viruses do something."

"Programmers are tools for converting caffeine into code."

"Enter any 11-digit prime number to continue."

hippy

variableName |= |< bitNumber    ' Set a bit

variableName &= ! |< bitNumber ' Clear a bit

Paul Baker

to clear:
var &= !(|< bit)
to set:
var |= |< bit

where bit is the bit number (0,1,2,3,...,30,31)

to test:
var AND |< bit


▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Paul Baker
Propeller Applications Engineer

Parallax, Inc.

crgwbr

awesome, thanks

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
"... one of the main causes of the fall of the Roman Empire was that, lacking zero, they had no way to indicate successful termination of their C programs." -

"If Python is executable pseudocode, then perl is executable line noise."

"The best accelerator available for a Mac is one that causes it to go at 9.81 m/s2."

"My software never has bugs. It just develops random features."

"Windows isn't a virus, viruses do something."

"Programmers are tools for converting caffeine into code."

"Enter any 11-digit prime number to continue."