Subject:
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BCLR TFLG1,X %11111101?
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Fri, 28 Jun 1996 07:29:51 GMT
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Original-From:
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Jeff Keyzer <jkeyzer@calweb+ihatespam+.com>
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Viewed:
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1541 times
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In the file encoders.asm, there's a section like:
Port1_ShaftInt:
LDX variable_port1_shaft_count
[stuff deleted]
BCLR TFLG1,X %11111101
RTI
I'm trying to figure out what the BCLR line does. Why does it clear
the bits of all the timers _except_ the one it's using? I would think that
BSET TFLG1,X %00000010 would be more appropriate for the task. Anyone know
how this works?
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